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奔驰涂装标准DBL7382

奔驰涂装标准DBL7382
奔驰涂装标准DBL7382

Mercedes-Benz DBL

7382

Supply Specification Date Published: 2009-09

Supersedes: DBL 7392

Total No. of Pages (incl. Annex): 25

Person in Charge: Petra Emmert

Plant 050; Dept.: PWT/VBT

Telephone: +49(0)7031/90-3775

e-mail:petra.emmert@https://www.wendangku.net/doc/706086065.html,

Supply Specification

Coating of Metallic Parts in

Vehicle Interiors

Liefervorschrift

Beschichtung/Lackierung für metallische Teile im Fahrzeuginnenraum

Preface

This DBL specifies the requirements for the coating quality of coated metallic parts which are used

in vehicle interiors/trunks and the door clearance space, and describes the testing methods. These

coatings are final coatings; no additional coating is applied in the receiving plant.

This DBL supersedes DBL 7392.

The latest version of this document is available through the standards information systems of Daim-

ler AG.

Changes

Contents

1Scope (4)

2Normative references (4)

3Terms and definitions (4)

4General requirements (4)

5Abbreviated material designation for documentation (4)

6General properties of the materials, raw materials and supply condition (5)

6.1All product versions (5)

6.2Initial sample inspection (5)

6.3Changes (material, process) (5)

6.4Assemblies (5)

6.5MAG weld seams / heat-affected zone (6)

6.6Punched and cut edges (6)

6.7Cataphoretic dip coating material and pretreatment (6)

6.8Repair paintwork (6)

6.9Coating thicknesses (6)

7Dimensions and tolerances / Form of supply (6)

8Technical Data (7)

9Tests (13)

9.1Color evaluation under natural daylight (13)

9.2Gloss (14)

9.3Layer thickness measurement (14)

9.4Cross-cut, abbreviated designation Gt (15)

9.5Bend test with conical mandrel (15)

9.6Cupping (15)

9.7Scratch test (15)

9.8Constant condensation water atmosphere (16)

9.9Corrosion cycle test (16)

9.10Salt spray test (16)

9.11CASS test (16)

9.12Contact corrosion (17)

9.13Surface corrosion, abbreviated designation Ri (17)

9.14Edge corrosion, abbreviated designation KR (17)

9.15Weld corrosion, abbreviated designation SR (18)

9.16Subsurface corrosion around a scribe, abbreviated designation U/2 (18)

9.17Blistering, degree of blistering (19)

9.18Resistance to chemicals (19)

9.19Care resistance test (19)

9.20Resistance under the influence of temperature (20)

9.21Rubbing test (22)

9.22Artificial weathering (22)

9.23Hot light aging (22)

9.24Solar simulation (22)

10Duties of the supplier (23)

10.1Tests before delivery (23)

10.2Tests during running production (23)

10.3Requalification (23)

10.4Functional tests of test equipment (VDA alternating test and outdoor weathering) (23)

11Samples (24)

12Deliveries (24)

13Marking (24)

14Packaging (24)

15Storability (25)

16Special instructions (25)

17Complaints (25)

Table 1 Product versions, overview

P r o d u c t v e r s i o n s

V e r y l o w c o r r o s i v e s t r e s s

L o w c o r r o s i v e s t r e s s

M o d e r a t e c o r r o s i v e s t r e s s

H e a v y c o r r o s i v e s t r e s s

M a g n e s i u m d i e c a s t i n g s / Z i n c d i e c a s t i n g s D e c o r a t i v e e f f e c t

Type of coating

Application examples

00

X

Air-dried, force-dried or baked

single or multicoat finish,

e.g. water-borne paint, powder, cataphoretic dip coat

Vehicle interior above knee height, not directly visible, no water-conveying areas, no decorative requirements, e.g. glove compartment holder, inner sliding roof frame etc. 10

X X

Air-dried, force-dried or baked single or multi-coat finish, e.g. water-borne paint, powder,

decorative and weather resistant

Vehicle interior visible to customer, decorative requirement, aluminum 11

X X

Air-dried, force-dried or baked single or multi-coat finish, e.g. water-borne paint, powder, decorative and weather resistant

Convertible

Vehicle interior visible to customer, decorative requirement 20

X

Air-dried, force-dried or baked single or multicoat finish

e.g. water-borne paint, powder, cataphoretic dip coat

Vehicle interior up to knee height and trunk, no decorative requirements e.g. seat frame, emergency steel wheels etc. 30

X

Air-dried, force-dried or baked single or multicoat finish

e.g. water-borne paint, powder, cataphoretic dip coat

Body clearance space, water-conveying area, e.g. window guide rails, holders in longitudinal members etc. not visible to customer 40

X

Baked single or multicoat finish

e.g. powder, cataphoretic dip coat

Magnesium die castings / zinc die castings in vehicle interior, no decora-tive requirement 41

X X

Baked single or multicoat

Finish, decorative and weather resistant e.g. powder, cataphoretic dip coat

Magnesium die castings / zinc die castings in vehicle interior, decorative requirement

1 Scope

- This Standard applies to all metallic base materials in vehicle interiors which have been provided with an organic coating.

- This Standard comprises the testing of the surface protection properties of the coating with regard to corrosion, mechanical properties and weather resistance.

2 Normative references

DBL DIN PBO VDA MBN

7399 DIN EN ISO 2064 / 3882 PBODC 371 VDA 200 MBN 33015

7390 DIN EN ISO 2409

7392 DIN EN ISO 4628-1;2;3;8

8585 DIN EN ISO 20482

6714 DIN EN ISO 4892-2

DIN EN ISO 9227 SS

DIN EN ISO 9227 CASS

DIN EN ISO 11997-1 cycle B

DIN EN ISO 6270-2

DIN EN ISO 6860

DIN EN ISO 105-B06

6173

DIN

53230

DIN

67530

DIN

75220

DIN

3 Terms and definitions

KTL: Cataphoretic dip coating (Kathodische Tauchlackierung)

FPT: Focal point test

4 General requirements

The relevant legal regulations and laws regarding safety requirements, certification and quality shall be complied with. The relevant requirements of Daimler AG apply in addition.

All materials, procedures, processes, components and systems shall conform to current statutory (gov-ernmental) requirements regarding constituents and recyclability.

Also refer to DBL 8585 (or Mercedes-Benz Special Terms) with regard to such requirements.

5 Abbreviated material designation for documentation

This DBL applies to all metallic materials.

6 General properties of the materials, raw materials and supply condition

versions

product

6.1 All

The materials (cleaning and phosphating agents) used for pretreatment before coating, the binder types and pigments used for the paintwork structure as well as the coating methods and the drying types shall be disclosed to the receiving Daimler AG plant for initial samples and in the event of changes. This stipula-tion is intended to facilitate, in particular within the framework of development processes, the general ma-terial assessment and compliance with any necessary technical and/or personal protective measures for the processing of painted components (e.g. grinding, welding). The pretreatments and coatings shall be free of heavy metals such as arsenic, cadmium, compounds containing chromium-VI, lead or their com-pounds. In addition, DBL 7399, Section 1.2.1, DBL 8585 and DBL 6714 as well as directive 2000/53/EC of the European Parliament and Council of 18 September 2000 regarding end-of-life vehicles (ELV) or the latest version of the ELV directive shall be observed.

Pretreatment, coating material and coating processes as well as coat thickness shall be selected by the part supplier so as to fulfill the requirements of this DBL. Residues which could promote corrosion and/or impair adhesion of the coating (flux, scale or similar) shall be removed chemically or mechanically, in par-ticular on weld seams or on laser-cut edges.

Edges, corners, overlaps and points accessible only with difficulty which are subject to the risk of corro-sion shall be treated particularly carefully.

The surface shall be free of any visible pretreatment markings, roughness, craters, dust inclusions etc.

6.2 Initial sample inspection

The corrosion-relevant documents of the initial sample inspection report (ISIR) to PWT/VBT or the re-sponsible department of the receiving MB plant shall be attached in the SQMS system (if available) under ISIR plants - surfaces/corrosion testing, and include the following information:

Indication of the production and coating location. If the component is produced or coated at several loca-tions, these locations shall be listed separately including the following data for each location. In addition, one component shall be submitted for sampling for each production/coating location.

- Pretreatment materials, product name with product code, supplier

- Coating materials, product name with product code (for cataphoretic dip coats also binder and pigment paste), supplier, in addition an electronic IR-ATR spectrum in JCAMP/DX format of a paint layer baked under normal process conditions with a thickness of at least 10 μm shall be submitted.

- Process description (flow chart)

- Process parameters, test frequency

- Layer thickness, layer thickness measuring points (illustrated documentation), test frequency

- Object stoving temperature (ideal, minimum, maximum)

- Object temperature curves (at full load), object temperature measuring points (illustrated documenta-tion), test frequency

- Test frequency requalification measures according to MB Special Terms (corrosion tests, technical-mechanical coating test in analogy with Section 6.2 of this DBL)

- Corrosion test report (illustrated)

- Repair paintwork: work instruction, coating materials with product and supplier name. Corrosion test report for this repair concept (illustrated)

6.3 Changes (material, process)

Any changes shall be notified to the Daimler AG receiving plant in good time according to VDA volume 2 and MB Special Terms No. 13 and subjected to initial sampling and approval before application in produc-tion.

6.4 Assemblies

Note that this DBL applies to the testing of individual components. If these components are installed with other components which might have an influence on the overall corrosion result after stressing (e.g. con-ductive rubber components, material combinations which run the risk of creating contact corrosion etc.),

6.5 MAG weld seams / heat-affected zone

MAG weld seams shall be pretreated so that silicate and slag residues are removed to an extent that al-lows proper pretreatment (e.g. phosphating). The heat-affected zone shall be treated in the same way, if it is accessible. Options: ceramic blasting, vibratory finishing ("Trowalisation"), dry ice blasting etc. In indi-vidual cases, an additional coating on the weld seams is also possible. It depends on the component which of these possibilities mentioned makes sense, and it shall therefore be selected following discus-sions with the responsible MBC department.

6.6 Punched and cut edges

Punched and cut edges shall be designed such that compliance with the edge protection required in the relevant PV is reliably ensured. The following rework possibilities are available to improve edge protection: grinding, brushing, vibratory finishing ("Trowalisation"), shot peening etc. If freedom from burrs is specified on the drawing, embossing of the edges, where possible, is recommended. If the parts are laser cut, an oxygen-free cut shall be chosen. Where this is not possible, the edges shall be finished as described abo-ve.

6.7 Cataphoretic dip coating material and pretreatment

The supplier shall ensure that the phosphate content in the cataphoretic dip coating bath does not exceed 100 ppm as corrosion protection deteriorates significantly with increasing phosphate content. PWT/VBT and/or the materials engineering department of the relevant MBC receiving plant shall be notified in writing if the cataphoretic dip coating materials are changed following sampling with regard to binder / solids ratio, or if measures are taken which might impact on the flow.

An Ni content of 0,8 - 1,2 g/l shall be maintained during phosphating when zinc-coated sheets are used. When using aluminum during a coat-forming phosphating process, care shall be taken to ensure that the free fluoride content is closer to the lower tolerance limit (coat formation is just still occurring) than the upper tolerance limit.

paintwork

6.8 Repair

For repair paintwork, the supplier's repair instructions and the coating materials used shall be indicated according to 2.1.2. If repair paintwork is carried out, the repaired locations of such components shall reach a surface corrosion value of Ri 0 during the different stress tests. The relevant department is responsible for requesting a component repaired in line with these instructions and for testing it according to the speci-fied PV.

The following process is required for rewelded, cataphoretically coated components:

Completely remove any weld residues from the weld.

- Use angle grinder to remove weld flash.

- Resand using 80 grit sanding paper.

- Clean using commercially available silicone remover.

- Apply 2-component repair primer 4075 manufactured by Spies Hecker.

Mixing ratio, layer thickness and drying according to manufacturer's specifications.

Refinish using MB 7 167, MB spray can (1-component) MB Art. No. 00 986 29 50/7 167 2 spray applications, air drying.

thicknesses

6.9 Coating

For the paints used, the coating thicknesses specified by the paint supplier, at which the requirements of this DBL are fulfilled, shall be maintained. If specifications are indicated on the drawing, such specifica-tions shall be observed.

7 Dimensions and tolerances / Form of supply

8 Technical Data

Preliminary remark:

Since in addition to the quality of the coating material itself, the material, the pretreatment and the shape

of the parts to be coated may also be crucial to compliance with the following requirements, the tests shall

be conducted on finished parts.

If, due to their size, components are sawn into pieces, the cut edges shall be protected (e.g. by waxing, masking with Jaband No. 92402 supplied by Jaband, www.jaband.de).

A test angle between 30° and 70° shall be maintained.

All values indicated are maximum values.

FPT ... Focal point test, refer to Section 6.2 of this DBL.

From Section 8.8, either cross cuts or scratch tests can be performed.

Affected PVs and their requirements

Properties 00 10/11 20 30 40/41 Test method

8.1 Color Deviation with respect to standard panel not greater than degree of

deviation 3-4

Section 9.1 of this DBL

8.2 Gloss In accordance with drawing or approved sample.

Deviation with respect to standard panel not greater than degree of

deviation 2-3

Section 9.2 of this DBL

8.3 Layer thickness (FPT) According to drawing or approved sample with the tolerances typical of

the material, as documented in the ISIR.

Section 9.3 of this DBL 8.4 Cross-cut (FPT) Gt 1 Section 9.4 of this DBL

8.5 Mandrel bending test,

conical mandrel

Document result

No requirement at present

Section 9.5 of this DBL

8.6 Cupping Document result

No requirement at present

Section 9.6 of this DBL 8.7 Scratch test (FPT) K2 Section 9.7 of this DBL

Affected PVs and their requirements

Properties 00 10/11 20 30 40/41 Test method

8.8 Constant condensation

water atmosphere

Section 9.8 of this DBL Exposure time in h 360h

8.8.1Blistering/degree of blister-

ing (S) 0 Section 9.17 of this

DBL

8.8.2 Scratch test K2

60min/24h after removal on the undamaged surface

Section 9.7 of this DBL

8.8.3Cross-cut Gt 1

60min/24h after removal on the undamaged surface

Section 9.4 of this DBL

Affected PVs and their requirements

Properties 00 10/11 20 30 Test method

8.9 Corrosion cycle test (SPP) Steel substrates

General testing for initial samples and annual requalification

Section 9.9 of this DBL

Exposure time in cycles 1 2 3 6

8.9.1. Surface corrosion Ri 0 Section 9.13 of this

DBL

8.9.2 Edge corrosion KR 2 KR 0 KR 2 not specified Section 9.14 of this

DBL

8.9.3 Weld corrosion SR 1,5 (20%) SR 0 SR 1,5 (20%)not specified Section 9.15 of this

DBL

8.9.4 Subsurface corrosion

U/2 in mm 2 Section 9.16 of this

DBL

8.9.5 Blistering/degree of blister-

ing (S) 0 < 2 (S 2) Section 9.17 of this

DBL

8.9.6 Scratch test K 2 Section 9.7 of this DBL 8.9.7 Cross-cut Gt 1 Section 9.4 of this DBL

Affected PVs and their requirements

Product version 00 10/11 20 30 Test method

8.10 Corrosion cycle test (SPP) Zinc coated, organically coated and hot dip aluminized substrates

General testing for initial samples and annual requalification

Section 9.9 of this DBL Exposure time in cycles 1 2 3 6

8.10.1. Surface corrosion Ri 0 Section 9.13 of this

DBL

8.10.2 Edge corrosion KR 3 KR 0 KR 3 not specified Section 9.14 of this DBL

8.10.3 Weld corrosion SR 1,5 (20%) SR 0 SR 1,5 (20%)not specified Section 9.15 of this

DBL

8.10.4 Subsurface corrosion

U/2 in mm 4 Section 9.16 of this

DBL

8.10.5 Blistering/degree of blister-

ing (S) 0 < 2 (S 2) Section 9.17 of this

DBL

8.10.6 Scratch test K 2 Section 9.7 of this DBL 8.10.7 Cross-cut Gt 1 Section 9.4 of this DBL

Affected PVs and their requirements

Properties 00 10/11 20 30 Test method

8.11 Salt spray test

Steel substrates

Only permitted as in-series test, not as initial sample inspection

Section 9.10 of this

DBL

Exposure time in h 48 72 96 240

8.11.1 Surface corrosion Ri 0 Section 9.13 of this

DBL

8.11.2 Edge corrosion KR 1 KR0 KR 1 not specified Section 9.14 of this

DBL

8.11.3 Weld corrosion SR 1 SR 0 SR 1 not specified Section 9.15 of this DBL

8.11.4 Subsurface corrosion

U/2 in mm 1 Section 9.16 of this

DBL

8.11.5 Blistering/degree of blister-

ing (S)

0 Section 9.17 of this

DBL

8.11.6 Scratch

test

K 2

60 minutes after removal on the undamaged surface

Section 9.7 of this DBL

8.11.7 Cross-cut

Gt 1

60 minutes after removal on the undamaged surface

Section 9.4 of this DBL

Affected PVs and their requirements

Product version 00 10/11 20 30 Test method

8.12 CASS test This test shall be used for aluminum as base material. Section 9.11 of this

DBL

Exposure time in h 48 72 96 168

8.12.1 Surface corrosion Ri 0 Section 9.13 of this DBL

8.12.2 Edge corrosion KR 2 KR 1 KR 2 not specified Section 9.14 of this

DBL

8.12.3 Subsurface corrosion

U/2 in mm 2

Section 9.16 of this

DBL

8.12.4 Blistering/degree of blister-

ing (S) < 2 (S 2) 0 < 2 (S 2) < 2 (S 2)

Section 9.17 of this

DBL

8.12.5 Scratch

test K 2

60 minutes after removal on the undamaged surface

Section 9.7 of this DBL

8.12.6 Cross-cut Gt 1

60 minutes after removal on the undamaged surface

Section 9.4 of this DBL

Affected PVs and their requirements

Properties 40 41 Test method

8.13 Corrosion cycle test Magnesium/Zinc Section 9.9 of this DBL Exposure time in cycles 6

8.13.1 Surface corrosion Ri 0 Section 9.13 of this

DBL

8.13.2 Edge corrosion KR 2 KR 0 Section 9.14 of this DBL

8.13.3 Subsurface corrosion

U/2 in mm

1,5

Section 9.16 of this

DBL

8.13.4 Blistering/degree of blister-

ing (S)

< 2 (S 2) 0

Section 9.17 of this

DBL

8.13.5 Scratch

test K 2

60 minutes after removal on the undamaged surface

Section 9.7 of this DBL

8.13.6 Cross-cut

Gt 1

60 minutes after removal on the undamaged surface

Section 9.4 of this DBL

Affected PVs and their requirements

Properties 40 41 Test method

8.14.1 CASS

test

Magnesium/Zinc

In principle, this test is only intended to check the complete coverage of

the surface. This test is performed without scratching the surface. Section 9.11 of this DBL

Exposure time in h 168

8.14.1 Surface corrosion Section 9.3 of this DBL 8.14.2 Edge

corrosion Section 9.14 of this

DBL

8.14.3 Blistering/

Degree of blistering (S)

Only to be used as comparative test.

Surface corrosion, edge corrosion and blistering shall comply with the

values of the original sample approved in the alternating VDA test.

The values of the original sample from the CASS test are then a con-

stituent part of the ISIR.

Section 9.17 of this

DBL

8.14.4 Scratch

test K 2

60 minutes after removal on the undamaged surface

Section 9.7 of this DBL

8.14.5 Cross-cut

Gt 1

60 minutes after removal on the undamaged surface

Section 9.4 of this DBL

8.15 Contact corrosion Magnesium/Zinc Section 9.12 of this DBL

Exposure time in cycles 2

8.15.1 Transition No efflorescence Section 9.12 of this DBL

Affected PVs and their requirements

Properties 10/41 11 Test method

8.16 Resistance to chemi-

cals Proof of compliance with these requirements by the paint supplier shall

be sufficient (test results are part of ISIR)

Section 9.18 of this

DBL

8.16.1 Sulfuric acid not specified

8.16.2 Tree pitch not specified 8.16.3 Pancreatin not specified No discoloration. No change in surface with regard to gloss and adhesion

8.16.4 Water

8.16.5 Caustic soda solution No discoloration. No change in surface with regard to gloss and adhe-

sion

Section 9.18 of this

DBL

8.17 Care resistance ≤ characteristic value 1 for felts and test specimens Section 9.19 of this

DBL

8.18 Resistance under

the influence of tem-

perature

Relative evaluation scale ≤ characteristic value 1, brightening up is

permitted in case of cream and sun lotion / test mixture. No softening of

coating, scratch test ≤ 1

Section 9.20 of this

DBL

8.19 Rubbing test No surface change Section 9.21 of this

DBL

8.20 Cold resistance No cracks 1 hour at –40°C

Affected PVs and their requirements

Properties 10/41 11 Test method

8.21 Artificial weathering Proof of compliance with this requirement by the paint supplier shall

be sufficient (reference sample part of ISIR)

Section 9.22 of this DBL

Exposure time in h 1000h 2000 h CAM 180

Change in color and gloss compared to unexposed reference sam-

ple not greater than assessment figure 3-4 (color) / 2-3 (gloss).

No cracks, no chalking.

8.22 Hot light aging Rating 4 after 4 cycles

(1 cycle = 72 h)

Section 9.23 of this DBL

8.23 Solar

simulation

200 h

(Indoor 1)

Section 9.24 of this DBL

9 Tests

According to the test specifications and standards indicated.

9.1 Color evaluation under natural daylight

The visual color comparison shall be performed from two evaluation angles under diffused light from a northerly direction:

-Vertical top view with the test panel placed horizontally, angle 90°, Light incidence from the front

-Tilted towards the front, angle 70° from the horizontal, Light incidence from the front

Evaluation stand vorne (Fenster)

hinten

Distance of the stand from the window: 1,50 m Position of the observer: lateral, right or left

Distance of the object from the eye: approx. 0,60 m

Evaluation criteria in accordance with DIN EN ISO 3668. Visual comparison of the color of paints.

The color shall always be indicated as follows: e.g. 2-3 he (lighter), bl (more blue).

No metamerism shall occur on the parts.

For visual color evaluation, a light booth simulating daylight is also acceptable. The evaluation angles shall be selected as described above.

front (window) rear

9.2 Gloss

9.2.1 Visual comparison of the gloss according to standard panel

Cover half the standard panel with the panel to be compared and observe an object high in contrast in the mirror image. Angle of observation approx. 130° measured from the horizontal.

In the case of incident sunlight, heavy cloud coverage or insufficient light intensity, no gloss comparison shall be performed. Deviations shall be classified according to the following table:

Deviation from

Assessment according to DIN 53 230

standard panel

_____________________ ________________

unchanged 0

slight 1

very

slight 2

moderate 3

considerable 4

severe 5

9.2.2 Measurement of gloss using a reflectometer

Apparatus in accordance with the specifications and requirements of DIN 67 530 shall be used.

9.3 Layer thickness measurement

Non-destructive in accordance with DIN EN ISO 2064 / 3882.

A correct process is crucial for proper layer thickness measurement.

Procedure:

The component without coating (but with phosphating, if applicable) shall be used as zero point for the component to be measured.

If components with different surface roughness values are measured, different memory locations in the layer thickness measurement unit shall be allocated.

Then the layer thickness range to be measured shall be set. In order to do this, copper-beryllium setting foils for the minimum and maximum layer thickness (tolerance range), within which the component will be coated, are required, e.g. cataphoretic dip coat 23 μm, calibration using layer thickness foils of 13 μm (minimum layer thickness) and 25μm (maximum layer thickness);

using these three corner points, the layer thickness measuring unit can be calibrated.

The setting foils shall approximate the minimum and maximum layer thickness closely. The smaller the layer thickness, the more precisely shall the setting foil correspond to the layer thickness profile.

9.4 Cross-cut, abbreviated designation Gt

In accordance with DIN EN ISO 2409

For components: manually using cutting tool in accordance with Figure B of DIN EN ISO 2409

Damage right into the substrate.

Remove paint particles adhering loosely using compressed air or adhesive tape.

Assessment in accordance with DIN EN ISO 2409.

9.5 Bend test with conical mandrel

In accordance with DIN EN ISO 6860

The test shall be performed on test panels. The relevant requirements will be included in a separate DBL.

9.6 Cupping

In accordance with DIN EN ISO 20482.

Two values can be determined:

1. Smallest cupping value at which cracks occur

2. Yes/no result for specified cupping or specific requirement.

Finally remove paint particles adhering loosely using compressed air or adhesive tape.

test

9.7 Scratch

Manual

Use the cutting edge of a cable stripping knife (see illustration) to scratch off the coating down to the sub-strate by pulling or pushing the knife while applying pressure. In order to test the adhesion between sev-eral layers, reduce the pressure accordingly.

Assessment in accordance with the following grades:

K 0: The paint adheres very well and exhibits completely smooth edges

at the scratched locations.

K 1: The paint adheres very well, but exhibits ragged edges.

K 2: The paint adheres well, can be scratched off with the entire applied

surface of the knife, smooth edges.

K 3: The paint adheres well, can be scratched off with the entire applied

surface of the knife, ragged edges.

K 4: Worse than K 3, some chipping.

K 5: Inadequate adhesion, paint chipping.

The required characteristic value shall be indicated in the specific DBL.

address:

Procurement

Friedrich Binder GmbH

Wagnerstr. 34

Stuttgart

70005

stripper

Cable

9.8 Constant condensation water atmosphere

DIN EN ISO 6270-2

test

9.9 Corrosion

cycle

In accordance with DIN EN ISO 11997-1 cycle B

This test shall be carried out in principle on try-out and initial samples of new coatings and parts. Compliance with this test is a condition for the delivery of parts. In the receiving Daimler AG plants, the corrosion cycle tests shall be used to assess the corrosion resistance of production parts.

This test is the requalification test to be performed according to Section

For commercial vehicles, the agreement with the relevant commercial vehicle receiving plant shall apply A test angle between 30° and 70° shall be maintained. For components intended for the underfloor, the underside of the components in the intended installation position in the vehicle shall form the upper side in the test chamber. Care shall be taken to ensure that no liquid can accumulate. Where this cannot be avoi-ded, such accumulations shall be excluded from the evaluation.

9.10 Salt spray test

In accordance with DIN EN ISO 9227 SS

This test is only permitted as in-series test. The corrosion cycle test shall be performed as the approval-relevant test.

Performance of the salt spray test is not permitted as specified requalification test either.

9.11 CASS

test

In accordance with DIN EN ISO 9227 CASS

corrosion

9.12 Contact

Description: Testing shall be performed on the basis of VDA 621-415.

One test cycle lasts 7 days and consists of:

1 day = 24h salt spray test SS DIN 50021

4 days = 4 cycles condensation water alternating atmosphere KFW DIN 50017

2 days = 48h room temperature 18° to 28°C in accordance with DIN 50014

Deviating from the test in accordance with DIN EN ISO 11997-1 cycle B, the NaCl content shall be re-duced during the salt spray test.

NaCl content: 0,5 g/L

Test period: 2 weeks

All other test parameters shall remain unchanged as specified in DIN EN ISO 11997-1 cycle B.

9.13 Surface corrosion, abbreviated designation Ri

In accordance with DIN EN ISO 4628-3

No accumulation / cluster formation exceeding the limit value specified in the specified DBL shall occur.

9.14 Edge corrosion, abbreviated designation KR

In analogy with DIN EN ISO 4628-1.

The following classification shall apply:

0 ... Edges without corrosion

1 ... Isolated rust spots on edges / up to 5%

2 ... Rust spots on less than 1/

3 of edges / up to 30%

3 ... 1/3 to ? of edges covered by rust / up to 50%

4 ... ? to ? of edges covered by rust / up to 80%

5 ... more than ? of edges completely corroded

Depending on the substrate type (steel or zinc), WR (white rust in the case of zinc) / RR (red rust in the case of steel and zinc) shall be added to the value.

Blisters forming along the edge are also regarded as edge corrosion. These predominantly occur in zinc-coated and organically coated materials and are designated WR.

9.15 Weld corrosion, abbreviated designation SR

The following classification shall apply:

0 ... Welds without corrosion

1 ... Isolated rust spots on welds / up to 5%

2 ... Rust spots on less than 1/

3 of welds / up to 30%

3 ... 1/3 to ? of welds covered by rust / up to 50%

4 ... ? to ? of welds covered by rust / up to 80%

5 ... more than ? of edges completely corroded

Depending on the weld type, the reverse of the weld seam shall also be taken into consideration.

9.16 Subsurface corrosion around a scribe, abbreviated designation U/2

In analogy with DIN EN ISO 4628-8.

Application of scribe:

For the scratch, use a Sikkens scratch stylus 463 to apply a scribe at least 12 cm long, if possible. The scribe shall reach right into the substrate, i.e. zinc-coated components shall be scratched right down to the steel substrate. The scribe shall be applied vertical to the component storage in the cabinet. The width of the scribe should be 1mm.

Assessment of subsurface corrosion :

Immediately following the end of the exposure, assess in analogy with DIN EN ISO 4628-8, Section 5.2.1 / 5.3.1 using the following procedure deviating from DIN:

1. Measure subsurface corrosion at intervals of 1 cm (at least 10 spots along the scribe mark).

2. No differentiation between corrosion and delamination.

3. In measuring subsurface corrosion, care shall be taken to ensure that any existing delamination is also determined.

4. The preferred method for evaluation is optical imaging in accordance with DIN EN ISO 21227-3. Calculation and evaluation

U/2 =(d-w)/2

whereby:

d = width in millimeters of th

e area o

f delamination/corrosion (arithmetic mean)

w = width in millimeters of the original scribe.

9.17 Blistering, degree of blistering

In accordance with DIN EN ISO 4628-2

No accumulation / cluster formation exceeding the limit value specified in the specified DBL shall occur.

9.18 Resistance to chemicals

Procedure according to PBODC 371

9.19 Care resistance test

Test apparatus

- Crockmeter (e.g.: Heal 255A, Halifax, England)

- Loading weight: 9 N

- Stroke length: 50-60 mm

- Number of strokes: 30 double strokes

- The finger holding the felts shall be drilled through axially, diameter 6-9 mm.

Auxiliary materials:

- Felts: Thierry, see Section 9, note

- Paper tissues: folding towels, single-ply, SCA Hygiene Paper no. 8.01.03

- Kleenex: KIMWIPES Lite 200, Thierry, see Section 9, note

Test method:

- The test shall be performed at room temperature (23 ± 2 °C, 55 ± 10 % r.h.)

- Insert dry felt in finger

- Impregnate felt by placing felt with finger into test liquid for 1 minute (load with crockmeter arm)

- Briefly place on folding towel (approx. 1 sec) and lift off again immediately

- Perform care test (flat specimens or specimen sections)

- After exposure, rinse tested surface with demineralized water and dot dry with Kleenex

- Dry felts and assess discoloration of the dry felts and the change of the coating using a limit sample se-ries (see below)

Test liquids:

- Glass cleaner with anti-mist effect (MB-No. A 001 986 3871) Thierry,

note

9,

see

Section

- Cockpit care product (MB-No. A 000 986 4774) Thierry,

note

9,

see

Section

- Stain remover (MB-No. A 001 986 2871) Thierry,

see

9,

note

Section

- Plastic cleaner (MB-No. A 000 986 9471) Thierry,

9,

note

Section

see

- Water / washing-up liquid, 1 % washing-up liquid solution

- Hand sweat solution with the following constituents

Sodium chloride, for analysis 4,5 g

Potassium chloride, for analysis 0,3 g

Sodium sulfate, for analysis 0,3 g

Ammonium chloride, for analysis 0,4 g

Lactic acid, 90% ultrapure 3,0 g

Urea, for analysis 0,2 g

ml

Demineralized water, 1000

Thierry, see Section 9, note

Open containers shall be replaced no later than after one year. Hand sweat shall be replaced monthly and stored in a brown bottle.

In order to prevent errors of evaluation due to discoloration of the felts caused by the care products, a comparison with a blank test is required. The blank tests shall be produced as described above with the care products on a clean glass plate.

If the care resistance tests have to be performed in the context of system sampling 1 (see Section 11) on sample panels (preferably MB color sample panels), the tests shall be executed on the ungrained surface and on the grains Dek 0000.33 and Dek 0000.35. The requirements shall be fulfilled on all surfaces.

If the care resistance test is performed in the context of initial sampling or production monitoring on a sample panel due to its geometry, a grain closely approximating the production part shall be chosen.

The felts and the abrasion on the tested surface shall be assessed after a regeneration period of 24 +/-0,5 h in analogy with DIN EN ISO 4628-1 according to the following scale:

Rating Intensity of change

0 no change, i.e. no perceivable change

1 very small, i.e. just perceivable change

2 small, i.e. clearly perceivable change

3 medium, i.e. very clearly perceivable change

4 strong, i.e. pronounced change

5 very strong change

The conditions described in Sections 9.1.2 and 9.1.3 shall be chosen for the assessment of the abrasion on the tested surface.

The felts shall be assessed using a limit sample series. This series shall be produced by each supplier and compared with the limit sample series available at the Dept. PWT/VBT Sindelfingen.

9.20 Resistance under the influence of temperature

Test substances:

- Coca-Cola (red label)

- Orange juice (100 % fruit juice)

- Nivea Sun, sun lotion, sunscreen factor 15, Thierry,

- Nivea Cream, Thierry, see Section 9, note

- Sun lotion test mixture, Thierry, see Section 9, note

Open Coca-Cola and orange juice containers shall be replaced after one week, sun protection agent and hand cream shall be replaced after one year, and the sun lotion test mixture after two years. The sun lo-tion test mixture shall be stored in a glass vessel in darkness.

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6.1.接受标准 6.1.1. 可接受的A、B、C级缺陷都应不影响产品的装配或功能,如有影响就应自动拒收。 6.1.2. 检查要求和观察条件参考第4部分(外观标准/检验要求) 6.1.3. 公差表中是指50平方英寸(约320cm2)范围内允许存在缺陷的数量,超过50平方英寸其缺陷数按比例增加,如同时存在2种以上的缺陷应拒收。 6.3. 缺陷定义 6.3.1. 突起:表面上局部高出(如水泡,肿块,山脊状) 6.3.2. 变色:与原色不同,或在同一零件中颜色不一致 6.3.3. 流痕:表面呈波纹、条纹状 6.3.4. 雾状:透明件中呈现云雾状 6.3.5. 凹坑:零件表面的小弹坑 6.3.6. 斑点:粘在表面上的细小颗粒 6.3. 7. 划伤:表面上的线状浅槽 6.3.8. 缩水:表面局部下陷 6.3.9. 溶接线:流料溶接处形成的可见线 6.3.10.色泽差:表面光泽不一致 6.3.11.分型线/飞边:零件在模具接合点处形成的可见线或突出线 6.3.12.质地变化:对于同一取样零件切片上有明显的质地结构变化 6.3.13.脱模:喷射润滑油,易于零件脱模 6.3.14.色差:零件颜色与色板不同 6.4. 公差表(塑胶件) 每个表面的缺陷数量不得超过可接受的限度,此表可用于检验人员的培训和判定产品的拒收。

关于汽车的所有国家标准

B/T3730.1-1998汽车和半挂车的术语及定义车辆类型 GB/T3730.3-1992汽车和半挂车的术语及定义车辆尺寸 GB/T3730.2-1996道路车辆质量词汇和代码 GB/T17347-1998商用道路车辆尺寸代码 GB/T16735-1997道路车辆车辆识别代号(VIN)位置及固定 GB/T16736-1997道路车辆车辆识别代号(VIN)内容与构成 GB/T16737-1997道路车辆世界制造厂识别代号(WMI) GB/T16738-1997道路车辆世界零件制造厂识别代号(WPMI) GB/T17349.1-1998道路车辆汽车诊断系统词汇 GB/T4782-1984道路车辆-操纵件、指示器及信号装置-词汇 GB/T4971-1985汽车平顺性名词术语和定义 GB/T12549-1990汽车操纵稳定性术语及其定义 GB/T15089-1994机动车辆分类 QC/T34-1992汽车的故障模式及分类 QC/T571-1999汽车清洁度工作导则名词、术语 GB/T9417-1988汽车新产品型号编制规则 GB/T17349.2-1998道路车辆汽车诊断系统图形符号 GB4094-1999汽车操纵件指示器及信号装置的标志 GB/T17676-1999天然气汽车和液化石油气汽车标志 GB/T4781-1984牵引车与全挂车的机械连接装置互换性 GB/T4606-1984道路车辆半挂车鞍座50号牵引销主要尺寸和安装互换性尺寸GB/T4607-1984道路车辆半挂车鞍座90号牵引销主要尺寸和安装互换性尺寸QC/T538-1999载货汽车燃料消耗量限值 QC/T535-1999重型载货汽车燃料消耗量限值 GB1495-1979机动车辆允许噪声 GB16170-1996汽车定置噪声限值 GB1589-1989汽车外廓尺寸限界 GB11561-1989汽车加速器控制系统的技术要求 GB11553-1989汽车正面碰撞时对燃油泄漏的规定 GB/T7031-1986车辆振动输入路面平度表示方法 GB7258-1997机动车运行安全技术条件 GB17259-1998机动车用液化石油气钢瓶 GB17258-1998汽车用压缩天然气钢瓶 QC/T245-1998压缩天然气汽车专用装置和安装要求 QC/T247-1998液化石油气汽车专用装置和安装要求 QC/T251-1998矿用自卸汽车应急转向性能要求 GB/T16887-1997卧铺客车技术条件 QC/T635-2000双层客车技术要求

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汽车油漆涂层检验标准修订稿

汽车油漆涂层检验标准 WEIHUA system office room 【WEIHUA 16H-WEIHUA WEIHUA8Q8-

汽车油漆涂层检验标准 1、检验方法: 油漆试板的制备 1.1.1试板底材的规格 玻璃板 100x80x2-3(mm) 马口铁板 (mm) 08AL钢板(一般性能试板) (其他性能试板) (耐候性能试板) 1.1.2试板底材表面要求平整、光滑、无卷边、无锈迹,其他要求按GB9271进行。 1.1.3性能测试的温度、湿度条件 除有特殊规定,性能测试环境温度和湿度条件按GB9278进行。 1.1.4漆膜的制备 所有待测试的油漆样板,漆膜制备按下述要求之一进行: ⑴ GB/T1717 漆膜一般设备; ⑵ GB/T9271 色漆和清漆标准试板; ⑶实际生产的工艺流程; ⑷材料试验大纲的要求。 鲜映度的测定 鲜映度(DOI)值的测定评价方法按“漆膜鲜映性测定仪”的产品说明书进行。

耐温变性试验 将试验样板从室温放入80℃烘箱内6h,取出冷却至室温,再放入-40℃低温箱内1h,取出样板,冷却至室温一周期,试验样板经过技术指标要求的试验周期以后,检测涂层的下列性能不得降低:附着力、弹性、杯突试验。 耐酸性 将试验样板(1/2-2/3)浸入蓄电池用硫酸中(硫酸不得重复使用)在室温下达到规定的时间后,涂层不得起泡,也不得有明显可见的色泽变化,充许涂层有轻微软化,但在室温下放置24h后必须重新硬化,并符合下列要求:弹性3mm;附着力1级;杯突5mm。耐碱性 将试验样板(1/2-2/3)浸入80±2℃、浓度为5%的碳酸钠溶液中,在达到规定的时间后,用自来水冲洗样板并在室温下干燥24h 后,涂层应符合下列要求:弹性3mm;附着力1级;杯突5mm。 耐机油性 将试验样板(1/2-2/3)浸入80±2℃的L—E10#内燃机润滑油中,在达到规定的时间后,用干抹布擦净样板,并在室温下干燥24h,涂层下列性能不得降低:附着力、弹性、杯突试验。 耐柴油性 将试验样板(1/2-2/3)浸入0#轻柴油中,在室温下达到规定的时间后,涂层不得溶解起泡,仅允许涂层有轻微软化,在室温下干燥24h,涂层下列性能不得降低:附着力、弹性、杯突试验。

汽车车身油漆涂装检验规范

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4 检验条件 4.1 检验环境 4.1.1 环境整洁,空气清新。不应有明显影响检验作业的热气、湿气、烟 尘,噪声不得高于70dB(A)。 4.1.2 采用带反射板自然纯正色日光灯照明,照度(1000~2000)lx。 4.2 检验人员 检验人员辩色力正常,视力在0.8以上(含校正后)。检验人员应具有较丰富的油漆涂装检验知识和实践经验,了解涂装工艺规程及技术要求。检验时,着中性颜色工装。 4.3检验仪器及量器具 4.3.1 检验仪器:磁性测厚仪、光电光泽仪、划格器等。 4.3.2 量器具:钢板尺、中华牌高级绘图铅笔(H、HB、B三种规格)、单 面刀片等。 4.3.3 所用仪器及量具应符合计量检定要求,并在有效检定周期内。 5检验内容 5.1表面油漆涂层质量 表面油漆涂层质量检验包括:生锈、起泡、脱落、裂纹、露底、桔皮、油漆损伤、流痕、发花、色差、针孔、颗粒、絮状丝、砂纸纹、板金凸凹、缩孔、划伤、流挂、漆薄、灰印、湿印、油点、斑痕、痱子等缺陷,并检验

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