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01-71-4002 ENGLISH


RENAULT TRUCKS
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N° 01.71.4002 / H
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NORME
STANDARD

RENAULT TRUCKS

01.71.4002 / H

METALLIC OR ORGA

NO - METALLIC COATINGS FOR ANTI-CORROSION PROTECTION

Normalisation / Standardisation

Renault Trucks (S.A.S)

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N° 01.71.4002 / H
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Ce document est un tout indissociable; sa reproduction et sa communication sont interdites sans l'accord de Renault Trucks. This document is as a inseparable whole; its copying and communication are prohibited without the Renault Trucks' consent. Document applicable particularly to the entire "Renault Trucks SAS area".

CREATION - MODIFICATIONS : Date version ind.

October 1985 June 1990 July 1993 November 1998 July 2002 March 2002 March 2005 January 2006

C D E F G H

1 edition. nd 2 edition. rd 3 edition. th 4 edition (Totally rewritten for increased simplification). th 5 edition (increase of standard protection for repetitive and multi-user parts and fasteners to 600h). th 6 edition (modification of tables in paragraph 5.5 and appendix 6, integration of procedure 31.71.4004) Update of standard Update of standard

st

Objet - Subject

PUBLICATION :

"NCE"

DOCUMENTS CITES / RELEVANT DOCUMENTS : (références) Recherche documents: Attention aux documents d'origine RENAULT Automobiles devenus spécifiques à RENAULT TRUCKS et distingués par un 4 en supplément dans leur numéro de référence tel que : "N° XX XX 4XXX"

Normes / Standards

01.30.018, 01.50.005, 01.71.001, 01.71.4003, 01.72.001, 07.00.4001, 00.10.4021, 00.10.4050 00.10.4051, STD 100-0002, STD 100-0003

Cahiers des charges / Technical specifications Procédures d'essai / Test procedures Méthodes d'essai / Test methods Autres (origine / ref.) / Others

11.04.405, 11.04.407, 39.02.201, 39.02.406 31.71.4004 D17 1058 NF A05-101, NF ISO 9227, NF A91-101, NF ISO 2179, NF A91-121, NF ISO 7587, ISO 6157– 3, ISO 3497, ISO 3613 EEC Directive 2000/53

MODALITES D'APPLICATION ETUDES / ENGINEERING MODES OF ENFORCEMENT : To be applied immediately for mainframe fasteners, for all new supplier-designed assemblies and for all new studies. As soon as this standard has been received, the feasibility study on standard parts and existing supplier-designed assemblies must begin immediately. Implementation will be carried out after agreement between engineering and purchasing. NOTA :

Propriétaire / Owner :

Materials technologie, Powertrain

VERSION :

01/2006

Auteur / Author: - Examen / Examination A. PICHAT / X. CHALLAMEL

Approbation / Approval P. RAVILLY

Réexamen du document recommandé tous les 5 ans / Recommended reexamination every 5 years ::

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LIST OF CONTENTS

N° 01.71.4002 / H
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Page 1 2 3 OBJECT IDENTIFICATION OF COATING CORROSION RESISTANCE DEFINITION 4 5 6 6 7 8 8 8 8 9 9 9 9 9 9 9 10 10 10 10 10 10 10 11 11 12 13 14 WITH 'SYZ' STANDARD 17 18

3.1 STANDARD PROTECTION 3.2 IDENTIFICATION OF PROTECTION LEVEL PER AREA OF EXPOSURE 4 GENERAL REQUIREMENTS FOR COATINGS

4.1 NEUTRAL SALT SPRAY RESISTANCE. 4.2 PROHIBITED AND RESTRICTED SUBSTANCES 4.3 THICKNESS 4.4 ALLOY ELEMENT CONTENT OF ELECTROLYTIC COATINGS 4.5 HEXAVALENT CHROME 4.6 ADHESION 4.7 TYPES OF COATING AND PROCESSES ALLOWED FOR STANDARD PROTECTION 4.8 COLOUR 4.9 HYDROGEN EMBRITTLMENT 4.10 TRACEABILITY 4.11 SUPPLIER-DESIGNED ASSEMBLIES 5 ADDITIONAL REQUIREMENTS FOR FASTENERS (SCREWS, NUTS, WASHERS, STUDS)

5.1 FRICTION CHARACTERISTICS 5.1.1 Friction coefficient values 5.1.2 Measurement of friction coefficient 5.1.3 Criticality levels for friction coefficient 5.2 COLOURING 5.3 TYPES OF COATING ALLOWED FOR FASTENERS WITH "SYZ" STANDARD PROTECTION SPECIFICATIONS 5.4 EASE OF INSTALLATION / COATING PROCESS CONFORMITY PROCESSES DEFINITIONS – FOR INFORMATION ONLY REVIEW OF OLD AND NEW IDENTIFICATIONS CORROSION - TABLE OF MAIN METAL ASSOCIATIONS TYPES OF COATING ALLOWED FOR NON-FASTENER PARTS PROTECTION SPECIFICATIONS SURFACE COATING CERTIFICATE * * *

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1 OBJECT

N° 01.71.4002 / H
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This standard applies to all parts made of ferrous materials requiring an anticorrosion coating, in particular repetitive and multi-user parts as defined by Renault Trucks Standard 07.00.4001. This standard is intended to meet Renault Trucks' objective of 3 years without the appearance of red rust on the chassis and 5 years on the cab. The requirements of this standard obviate the need for zinc chromatic coatings to provide VI 'standard' protection and allow standard 00.10.4051 and EEC directive 2000/53 (Cr prohibition for light-duty vehicle) to be met. This standard specifies the information required on drawings. The following items are not covered by this standard * Zinc-coated sheet, specified in technical specifications Renault Trucks 11.04.405, aluminium silicon alloy coated sheet specified in technical specifications Renault Trucks 11.04.407 together with any parts made from these two types of sheet. * Galvanized coatings obtained by dipping the material in molten zinc are identified in Renault Trucks standard N° 01.71.4003. * Tin-based coatings defined in the NF ISO 7587, NF ISO 2179 and NF A91-121 standards. * Nickel and chrome-based coatings defined by the NF A91-101 standard. * Phosphated coatings defined by the Renault, Renault Trucks 01.72.001 standard.

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N° 01.71.4002 / H
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2

IDENTIFICATION OF COATING

A coating is defined by: * Its salt spray resistance, * The type(s) of process allowed, * Colour requirements. Information to be given on the drawing is: PROTECTION "XYZ" as per standard N° 01.71.4002. It is expressly forbidden to put a process commercial name on Renault Trucks drawings. X First character:
RESISTANCE TO SALT SPRAY (Red oxidation)

Y

Z

? Standard Protection – See paragraph 3.1

S

? Other levels of protection: (see paragraph 3.2 depending on part location on vehicle) The value given equates to the minimum number of hours of BS resistance divided by 100 Second character: TYPES OF PROCESS PERMITTED ? No specific process requirements. ............................................................ S ? ? ? ? Electrolytic zinc ……………………………………………… 0 Electrolytic zinc alloy …………. .............................................................. 1 Lamellar zinc (dipping or spraying)............................................................. 2 Others (details to be given on the drawing) e.g.: mechanical plating, Sherardizing 3 ..............................................................................................

Third character: COLOUR

? No specific colour requirements ........................................................................................ S ? Colour requirement to be indicated GREY..................................................................... . G BLACK ................................................................... . N

In addition to the above details, any information on any special requirements is to be added to the drawing. * Requirements for resistance to high temperatures may also be specified. In this case, the part is exposed to the specified temperature for one hour before any anti-corrosion resistance tests are carried out. This temperature is to be marked on the drawing. * Specific processing may be requested for certain applications. E.g.: Elastomer adherence. Details of the process must be given on the drawing together with all necessary specifications. * Without Cr ( to meet end of life vehicle directive)
VI

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Examples of identification:

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"SSS" Resistance to corrosion in salt spray, standard protection - No restrictions on the type of process – no specific colour requirements "2SN" Resistance to corrosion in salt spray, resistance to red oxidation >200 h - No restrictions on the type of process - Colour black "82S" Resistance to corrosion in salt spray, resistance to red oxidation >800 h – Lamellar zinc protection (e.g.: "Dacromet ? ") - No specific colour requirements.

3 CORROSION RESISTANCE DEFINITION 3.1 STANDARD PROTECTION Objectives for corrosion resistance evolve with time and this standard defines the minimum level of protection permitted. This is called "STANDARD PROTECTION". Using “standard protection” enables protection levels for different parts to be modified, simply by changing the requirements in this specification. This avoids corrections on drawings. Table for defining salt spray resistance using test method D17 1058 for standard protection Types of part Resistance to white oxidation Resistance to red oxidation

Repetitive and multi-user parts (as per standard N° 07.00.4001)

> 200 hours

> 600 hours

Other parts (depending on part location on the vehicle, see table on page 7)

> 200 hours

> 400 hours

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3.2 IDENTIFICATION OF PROTECTION LEVEL PER AREA OF EXPOSURE

N° 01.71.4002 / H
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Minimum requirements for resistance to salt spray (red oxidation) to be given on the drawing using chapter 2 "IDENTIFICATION OF COATING". – See Note Repetitive and multi-user parts as per standard N° 07.00.4001 '2YZ'

Area of exposure Cabin interior Cabin exterior

Other parts

'2YZ'

'SYZ' Engine – Visible parts (When the cabin is in normal driving position) directly subjected to outside weather conditions (Absence of protective screening, absence of paint protection), Mainframe and chassis equipment, Axles and Transmissions Engine – Non-visible parts (When the cabin is in normal driving position) or parts protected from outside weather conditions (Presence of a protective screening or a paint protection)

6XZ

'SYZ'

'SYZ'

'2YZ'

'2YZ'

Note: In the above table, Y and Z are generic representations of requirements for the type of process to be used and for the colour of the coating. These requirements are to be defined as per the application in question (see chapter 2) If required, information on any special levels of protection that do not correspond to the general requirements described above may be added to the drawing. For parts used in a variety of environments (e.g.: fasteners used both inside and outside the cabin), the most severe requirement must be chosen.

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4 GENERAL REQUIREMENTS FOR COATINGS 4.1 NEUTRAL SALT SPRAY RESISTANCE. Salt spray tests are defined in test method D17 1058. Test results to NF A05-101 or NF ISO 9227 standards are acceptable. In case of litigation or disagreement, D17 1058 test method is considered the only valid method. Resistance to salt spray is tested in two steps: - first the presence of white oxidation from zinc salts and oxides - second for the presence of red oxidation from iron oxides. Resistance to white and red oxidation must comply with all the requirements of the present standard. When a resistance to red oxidation over 400 h is required, resistance to white oxidation must be over 200 h. When a resistance to red oxidation over 200 h is required, resistance to white oxidation must be over 100 h. 4.2 PROHIBITED AND RESTRICTED SUBSTANCES Coatings must not contain any substances featured on the VOLVO group "black list", reference STD 100-0002, and for some components must also comply with European directive n° 2000/54/EC and Renault Trucks standard 00-10-4051 including its relevant appendices. Substances on the VOLVO group grey list, reference STD 100-0003, are to be avoided as far as possible (some are already banned according to 00-10-4051) and, when used, should be subject to specific supplier traceability procedures. This list of restrictions is not exhaustive. Coatings must comply at all times with the requirements of applicable regulations.

4.3 THICKNESS Coatings must be sufficiently thick to meet requirements on: * Anti-corrosion protection for the parts coated to be verified by salt spray testing, * Tolerance between male and female parts or mechanical parts that slide against each other, * Formulators’ recommendations. For lamellar zinc coatings, a minimum coating weight (g/m ) is required (See table in paragraph 5.3). Thickness measurement: Microscopical method is to be used to measure lamellar coatings in case of dispute. X-ray fluorescence measurement is recommended for electrolytic coatings (ISO 3497). In the case of threaded parts, the maximum thickness allowed for coatings must not prevent parts from complying with requirements of Renault Trucks 01.30.018 standards and not alter any torque/tension ratio defined in standard 01.50.005.
2

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4.4 ALLOY ELEMENT CONTENT OF ELECTROLYTIC COATINGS

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Electrolytic coating performed in a cyanide-free alkaline medium must demonstrate alloy element contents in line with the following requirements: ? ? the Nickel content of Nickel Zinc coatings must be between 12 and 15% (ISO 3497) the Iron content of Iron Zinc coatings must be between 0.3 and 0.6%

4.5 HEXAVALENT CHROME Passivations on Nickel Zinc coatings must be free of hexavalent chrome (ISO 3613). For light duty vehicles (less than 3.5 T), all the coatings must be free of hexavalent chromium ( see Directive CEE 2000/53 and standard 00.10.4051) 4.6 ADHESION Adhesion is to be checked by heating the part to 300 °C ± 5 °C, then plunging it into water at ambient temperature (20 °C ± 5 °C). Coatings must not present any signs of blistering or flaking to the naked eye. 4.7 TYPES OF COATING AND PROCESSES ALLOWED FOR STANDARD PROTECTION The process to be used for parts specified with SYZ standard protection must be chosen from the different types of coating defined in the present standards (See appendix 4 and paragraph 5.3 for fasteners). The coating proposed must be chosen from a list of commercial references approved by Renault Trucks as per procedure 31.71.4004. The supplier may propose new types of coating or new commercial references. They will be tested for approval as per procedure 31.71.4004. 4.8 COLOUR Colour requirements are identified by the IDENTIFICATION OF COATING given in this document (See chapter 2.). Special requirements must be specified on the drawing. No specified colours are to change corrosion resistance requirements. If a colour choice is the most important point, different corrosion solutions must be studied (e.g.: adding a “black stainless” mask). 4.9 HYDROGEN EMBRITTLMENT Degassing is mandatory for parts manufactured to Renault Trucks standard N° 01.71.001. See appendix 1 for further details. Suppliers must guarantee 100% traceability of the degassing process and must provide a batch-degassing certificate to those Renault Trucks plants requesting it. To validate the degassing process and to check that no weaknesses are present, parts are to be subjected to delayed rupture testing as specified in CDC 39.02.201 and CDC 39.02.406. 4.10 TRACEABILITY No rupturing is permitted. For parts series production to be accepted, the conformity certificate must indicate the following information in particular (see example in appendix 5): - The name of the supplier of the different types of processing (protection, lubrication) - The type(s) of protection - The processing line reference Any change that takes place in the coating process must be accepted before any mass production is begun (acceptance of the new control plan and acceptance of production conditions as required).

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4.11 SUPPLIER-DESIGNED ASSEMBLIES

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All requirements contained in the present standards, especially requirements given in paragraph 4.3 describing the different types of coating allowed, also apply to assemblies and subassemblies, the different modules and their components delivered by suppliers. 5 ADDITIONAL REQUIREMENTS FOR FASTENERS (SCREWS, NUTS, WASHERS, STUDS) 5.1 FRICTION CHARACTERISTICS 5.1.1 Friction coefficient values Except in specific cases marked on the drawing or to standard N° 01.50.4002, friction characteristics for ISO metric threaded fasteners (screws, studs, threaded rods, nuts), must comply with: * 0.12 to 0.18 (standard fasteners) * 0.08 to 0.14 (HE ?12, 14, 16 chassis fasteners) Measurement of friction coefficient As per Renault Trucks standard 01.50.005. Criticality levels for friction coefficient The following conditions are required for fasteners at friction coefficient criticality level 1 as per standard N° 00.10.4021: - A friction coefficient check must be made with the fasteners supplier on 10 parts from each batch of coated parts. - If the supplier is not the manufacturer, he is nevertheless responsible for these inspections and those carried out by his subcontractors. - Traceability documents are to be kept for a period of ten years (manufacturer + supplier) 5.2 COLOURING Base product or lubrication colouring may be required in specific cases and must be indicated on the plan: - For differentiating friction coefficient levels. - To act as a reference and so avoid confusion.

5.1.2

5.1.3

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5.3 TYPES OF COATING ALLOWED FOR FASTENERS WITH "SYZ" STANDARD PROTECTION SPECIFICATIONS Friction coefficient Coatings permitted Supplier Colour Weight of layer 24-28 g/m? + 2-4 g/m? (topcoat) 10 ?m min in zinc 24-28 g/m? 20-35 g/m? + 1-4 g/m? (topcoat) 24-28 g/m? + 2-4 g/m? (topcoat) 8-10 ?m + 2 ?m (topcoat) 8 ?m min in zinc 8 ?m min in zinc 8 ?m min in zinc 8 ?m min in zinc 8 ?m min in zinc 10 ?m min in zinc 10 ?m min in zinc Cr
VI

Fasteners 0.08 – 0.14

DACROMET? 500 grade A (2 layers) + Plus L (1 layer) Zinc Iron (0.3-0.6%) + Passivation (CrVI) + FOM or sealer (ex Finigard 111) DACROMET? 500 A (2 layers)

Dacral

Grey

YES

Black

YES

Dacral

Grey

YES

Deltaprotekt KL 100 (2 layers) + VH 315 (1 layer)

Dorken

Grey

NO

Geomet 321 (2 layers) + Plus M (1 layer)

Dacral

Grey

NO

Zintek 200 (2 layers) + Techseal silver WL (1 layer)

SIDASA

Grey

NO

Zinc Nickel Alkaline 12 – 15 % Performa 280 + Findip 728 + Zinthium 302 Zinc Nickel alcalin 12-15% Performa 280 + Passivation Finidip 728 + topcoat Finiguard 150 Zinc Nickel alcalin 12-15% Performa 280 + Passivation Finidip 128 + topcoat Finiguard 150 Zinc Nickel alcalin 12-15% Enviralloy NI 12-15 + Passivation Tripass ELV 5100 + topcoat TNT15 Zinc Nickel alcalin 12-15% Enviralloy NI 12-15 + Passivation Tripass ELV 3000 + topcoat 2 layers TNT15 Zinc Iron (0.3-0.6%) + Passivation (CrVI)+ FOM or sealer (ex Finigard 105) Zinc Alkaline Oklane + passivation Lanthane 310 + Lanthane 320 + Finigard 105 (1) See appendix 1, for process specifications.

Coventya

Black

NO

Fasteners 0.12 – 0.18

Coventya

Black

NO

Coventya

Silver

NO

Mc Dermid Mc Dermid

Black

NO

Siver

NO

Black

YES

Coventya

Silver

NO

Zinc-Nickel 12/15 % and zinc-lamellar are recommended when the part to be protected is in contact with aluminum alloys. (1) This coating is to be used only for parts that will be in contact with stainless steel.

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5.4 EASE OF INSTALLATION / COATING PROCESS CONFORMITY

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Dimensions must be such that parts are in conformity when inspected using ring or plug gauges as per standard 01.30.018. The maximum torque applied when ring or plug gauge inspections are carried out must be no higher than values given in ISO standard N° 6157-3

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N° 01.71.4002 / H
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APPENDIX 1 PROCESSES DEFINITIONS – FOR INFORMATION ONLY

1. ELECTROLYTIC COATING This is a process that gives different thicknesses depending on the time spent in the electroplating bath, although thicknesses are irregular at the bottom of treated parts (e.g.: thread roots) and virtually inexistent in bores, internal threads, etc if adequate methods are not applied. This operation weakens steel parts due to the presence of hydrogen, it explains why degassing is necessary for parts with high mechanical properties, as per Renault Trucks standard N° 01.71.001, every time this process is specified. This type of coating is sometimes covered by an organic finish that improves both resistance to corrosion and friction coefficients. When this process is used degassing is required on all parts in the areas of application covered by Renault Trucks standard N° 01.71.001 or any specification required on the drawing. 2. Lamellar Zinc COATING Protection is obtained by cold dipping parts in an organo-metallic aqueous solution, or by spraying followed by a centrifuging operation. These parts also undergo stoving at around 200 to 300°C. This process replaces the degassing operation. Lamellar coating must be carried out within a maximum of 4 hours following surface preparation on those parts having undergone chemical pickling. This process is not allowed for any parts incapable of withstanding the curing temperature.

The dipping-centrifugating process is the most used for threaded and non-threaded parts. It has the disadvantage of filling in thread roots (fine ones), deep imprints and may also give rise to cleanliness issues. Some zinc-lamellar products can be sprayed. It is of interest for nuts and fasteners with deep imprints. It prevents high coating thickness and improves entering for threaded parts.

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APPENDIX 2 REVIEW OF OLD AND NEW IDENTIFICATIONS

Old identifications 96 hours Z4F Z5F Z10F Z4DF Z5DF Z10DF 96 96/4 95/5 200/10 96D 96/4D 96/5D 200/10D 96 black 96/4 black 96/5 black Dacromet? black 200 hours Standard protection Renault Trucks standard N° 01.71.4002 Standard protection + degassing Renault Trucks standard N° 01.71.4002 Standard protection Renault Trucks standard N° 01.71.4002 400 hours

New identifications 400 or 600 hours (1)

SSS protection Renault Trucks standard N° 01.71.4002

SSS protection Renault Trucks standard N° 01.71.4002

Standard protection + degassing Renault Trucks standard N° 01.71.4002 Black standard protection SSN protection Renault Trucks standard Renault Trucks standard N° 01.71.4002 N° 01.71.4002 S2N protection Renault Trucks standard N° 01.71.4002 SSN protection Renault Trucks standard N° 01.71.4002 S2S protection Renault Trucks standard N° 01.71.4002 S3S protection Renault Trucks standard N° 01.71.4002 and N° 01.71.001 S1S tin protection Renault Trucks standard N° 01.71.4002 and N° 01.71.001

SSN protection Renault Trucks standard N° 01.71.4002 S2N protection Renault Trucks standard N° 01.71.4002 SSN protection Renault Trucks standard N° 01.71.4002 S2S protection Renault Trucks standard N° 01.71.4002 S3S protection Renault Trucks standard N° 01.71.4002 and N° 01.71.001 See NF ISO 7587, NF ISO 2179 and NF A91-121

96D black 200/10D passive black 200 Dacromet? Dacromet? 204/4 Dacromet? Sn + Zn beating + passivation

Black standard protection+ degassing Renault Trucks standard N° 01.71.4002 Standard protection Renault Trucks standard N° 01.71.4002 200 Sn Renault Trucks standard N° 01.71.4002

96 Sn 150 Sn 200 Sn

96 Sn 150 Sn 200 Sn Renault Trucks standard N° 01.71.4002

(1) Refer to paragraph 3 'Definition of standard protection'

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CORROSION - TABLE OF MAIN METAL ASSOCIATIONS

ZINC & ALUMINIUM ALLOY - ZAMAK

ALUMINIUM AND ALUMINIUM ALLOY

ZINC COATED STEEL

DACROMET COATING ON STEEL

ALUMINIUM AND ALUMINIUM ALLOY ZINC & ALUMINIUM ALLOY ZAMAK DACROMET COATING ON STEEL ZINC COATING ON STEEL

No corrosion

No corrosion

No corrosion

Aluminium corrodes No corrosion

Aluminium corrodes Zamak corrodes

Aluminium corrodes Zamak corrodes

Aluminium corrodes Zamak corrodes

Aluminium corrodes Zamak corrodes

No corrosion No corrosion Aluminium corrodes Aluminium corrodes Aluminium corrodes Aluminium corrodes Aluminium corrodes

No corrosion No corrosion

No corrosion

POUR INFORMATION
No corrosion No corrosion No corrosion No corrosion No corrosion Zinc is natural attacked No corrosion Dacromet is natural attacked Dacromet is natural attacked Dacromet is natural attacked Dacromet is natural attacked Zinc is natural attacked Zinc is natural attacked Zinc is natural attacked Zinc is natural attacked No corrosion No corrosion

Dacromet is natural Dacromet is natural Dacromet is natural Dacromet is natural attacked attacked attacked attacked Zinc is natural attacked No corrosion Zinc is natural attacked No corrosion Zinc is natural attacked No corrosion

BRONZE

Zamak corrodes

BRASS

Zamak corrodes

No corrosion

No corrosion

No corrosion

COPPER

Zamak corrodes

No corrosion

No corrosion

No corrosion

STAINLESS

Zamak corrodes

No corrosion

No corrosion

No corrosion

No corrosion

STAINLESS

COPPER

BRONZE

BRASS

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APPENDIX 4 TYPES OF COATING ALLOWED FOR NON-FASTENER PARTS WITH 'SYZ' STANDARD PROTECTION SPECIFICATIONS

Types of coating"Lamellar Zinc". FORMULATOR DACRAL DORKEN SIDASA UNISIDA MAGNI NAME GEOMET 321? grade A DELTATONE? and DELTASEAL? DELTAPROTEKT KL ZINTEK 200 MAGNI 565? SALT SPRAY RESISTANCE (1) (for information) > A 600 Hours > A 600 Hours > A 600 Hours > A 1000 Hours Minimum THICKNESS 24- 28 g/m? 15 ?m 8 ?m 13 ?m TYPE OF PASSIVATION No Cr VI No Cr VI No Cr VI No Cr VI

(1) depending on thickness

Types of electrolytic coating. SALT SPRAY RESISTANCE (for information) > 600 Hours MINIMUM TYPE OF THICKNESS of PASSIVATION ZINC 10 ?m Cr VI

TYPE Zinc Iron (0.3-0.6%) + Passivation (CrVI)+ sealer (Lubrification) if necessary Zinc-Nickel Alkaline 12-15 % + passivation + Sealer (Lubrification) if necessary

> 600 Hours

8 ?m

Cr III

All coatings proposed to Renault Trucks will undergo a validation process according to procedure N° 31.71.4004.

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? RENAULT TRUCKS APPENDIX 5 Date Applicator TS designation

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SURFACE COATING CERTIFICATE Part reference Part designation Address Standard Line(s) N°
(1) (2)

Detailed description of the TS

(1) indicate all lines of application used (primers, sealer, etc.) - (2) give the commercial name of the different TS layers (primers, passivation, sealers, etc.), the grade or number of layers (lamellar zinc)

INSPECTION REPORT Parameter Requirement 1 Corrosion resistance White oxidation (h) (3) Corrosion resistance Red oxidation (h) Thickness (?m) and/or Weight of layer (g/m?) Adhesion (4) Delayed rupture (if degassing) Colour / Appearance (5) % Fe or Ni Absence of Cr6 on ZnNi (4) Fittability
(3)

2

Sample n° 3 4

Test method 5

Document (standard, etc.)

(3)

provide the full test report (D17 1058 appendix 2.2) -

(4)

specific fastenings - (5) for electrolytic coatings of ZnFe or ZnNi

FRICTION Sample n° 1 2 3 4 5 6 7 8 9 10 Minimum Mean Maximum Requirement

(4)

Tension (kN)

Torque (Nm)

Friction ?

Standard

PRE-TIGHTENING TORQUES Number of Requirement parts (Nm) Min. CONFORMING

(4)

Mean Torque (Nm)

Standard Max.

NON-CONFORMING

We hereby guarantee that none of the substances given in the black list STD 100-0002 is present in the parts delivered Supplier's name and signature / stamp

Measurements certified by

Name and signature of the quality manager


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