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1、Klass.-Nr./Class. No. 55 16 1 May 2004 ECO/CO Molded Parts Material Requirements TL 520 52 Konzernnorm Descriptors: ECO/CO, epichlorohydrin, epichlorohydrin rubber, epichlorohydrin elastomer, molded part, molding, moulded part, moulding Page 1 of 5 Fachverantwortung/Responsibility Normung/Standards
2、(EZTD, 1733) K-QS-31 H. Schulz Tel.: -24365 Frau Krenz Tel.: +49-5361-948869 Sobanski Confidential. All rights reserved. No part of this document may be transmitted or reproduced without the prior written permission of a Standards Department of the Volkswagen Group. Parties to a contract can only ob
3、tain this standard via the responsible procurement department. VOLKSWAGEN AG Norm vor Anwendung auf Aktualitt prfen / Check standard for current issue prior to usage. Form FE 41 - 01.03 Changes The following changes have been made as compared to Technical Supply Specification TL 520 52, 2003-04: Sco
4、pe restricted Previous issues 1977-10; 1979-01; 1980-01; 1980-09; 1981-11; 1982-06; 1982-12; 1984-04; 1989-02; 1989-11; 2003-04 1 Scope This TL standard specifies the material requirements for parts heated in and out of the mold. Ozone resistance must be ensured even after the effects of fuels and h
5、igh temperature. Not suitable for applications involving blow-by gas or sour gas! 2 Designation ECO/CO molded part according to TL 520 52 3 Requirements 3.1 General requirements Approval of first supply and changes according to Volkswagen standard VW 011 55. Avoidance of hazardous substances accordi
6、ng to VW 911 01. 10 to 25 finished parts depending on the size are required for complete testing. 3.1.1 Appearance The parts must be free of inclusions, blisters, damage, surface flaws and other defects. 3.2 Oil resistance The requirements regarding oil resistance are only valid if “oil-resistant” i
7、s additionally required in the drawing. The requirements regarding fuel and diesel fuel resistance are omitted for oil-resistant parts. 3.3 Temperature ranges Service life temperature: -40 C to +110 C Over short periods up to: +150 C The English translation is believed to be accurate. In case of dis
8、crepancies the German version shall govern. Page 2 TL 520 52: 2004-05 3.4 Design According to drawing. 3.5 Identification Manufacturers code according to drawing. 3.6 Identification according to VDA 260 ECO 9 4.2 After aging at elevated temperature see Section 5.1 4.2.1 100 h at +110 C N/mm2 9 4.2.2
9、 100 h at +150 C N/mm2 9 4.3 After fuel immersion aging see Section 5.2 4.3.1 FAM 2 N/mm2 6 4.3.2 Diesel fuel N/mm2 6 4.4 After fuel immersion aging and subsequent drying see Sections 5.2 and 5.3 4.4.1 FAM 2 N/mm2 9 4.4.2 Diesel fuel N/mm2 9 4.5 After aging in engine oil see Section 5.5 N/mm2 6 5 El
10、ongation at tear acc. to DIN 53 504 and VW 2.8.1 5.1 As-received condition % 250 to 550 5.2 After aging at elevated temperature see Section 5.1 5.2.1 100 h at +110 C % 250 5.2.2 100 h at +150 C % 150 5.3 After fuel immersion aging see Section 5.2 5.3.1 FAM 2 % 150 5.3.2 Diesel fuel % 200 5.4 After f
11、uel immersion aging and subsequent drying see Sections 5.2 and 5.3 5.4.1 FAM 2 % 150 5.4.2 Diesel fuel % 200 Page 4 TL 520 52: 2004-05 No. Property Unit Requirement 5.5 After aging in engine oil see Section 5.5 % 100 6 Permanent deformation acc. to PV 3307 24 h at (+110 3) C % 6 7.2 After aging at e
12、levated temperature 100 h at +150 C see Section 5.1 N/mm 3 7.3 After fuel immersion aging see Sections 5.2 and 5.4 7.3.1 FAM 2 N/mm 1 7.4 After aging in engine oil see Section 5.5 N/mm 4 8 Low-temperature behavior acc. to VW 2.8.1 24 h at -35 C No cracks, no fractures 9 Corrosion behavior acc. to VW
13、 2.8.1 No black discoloration, no aggressive behavior on electrolytic copper 10 Ozone resistance acc. to VW 2.8.1 Folding stress 10.1 After fuel immersion aging and subsequent drying see Sections 5.2 and 5.3 Free of cracks 10.2 After aging in engine oil see Section 5.5 Free of cracks 5 Notes on test
14、ing 5.1 Aging at elevated temperature Appropriate test specimens shall be aged in an oven (stationary). Measurements are taken after a 30-minute period of acclimatization at (23 2) C. 5.2 Fuel immersion aging The specimen parts are aged in fuel for 48 h at (23 2) C. The following test fluids shall b
15、e used: FAM test fluid according to DIN 51 604-B Diesel fuel according to TL 788. Measurements are taken 15 min after removal. The specimen parts aged in diesel fuel are dabbed off. Page 5 TL 520 52: 2004-05 5.3 Drying after fuel immersion aging After fuel immersion aging, the specimen parts are dri
16、ed for 24 h at +80 C in an oven (stationary) or in an oven protected against explosion. 5.4 Tear propagation strength after fuel immersion aging Calculations shall be based on the dimensions prior to aging. 5.5 Aging in engine oil S3A standard test specimens are aged 100 h at +150 C in Reference Eng
17、ine Oil C.20 SAE 5W-40 according to TL 521 85. Measurements are taken 30 min after removal. In justified cases, other engine oils can also be used. 6 Referenced standards1 TL 788 Diesel Fuel, Fuel Requirements TL 521 07 SAE 15W-40 Factory Fill Engine Oil; Lubricant Requirements TL 521 85 Reference E
18、ngine Oil C.20 SAE 5W-40, Compatibility Testing Engine-Oil Elastomer Materials; Requirements, Testing PV 3307 Elastomer Components; Plastic and Elastic Deformability VW 2.8.1 Elastomers; Material Requirements and Testing VW 011 55 Vehicle Supply Parts, General; Approval of First Supply and Changes V
19、W 911 01 Vehicle Environmental Standard; Vehicle Parts, Materials, Operating Fluids; Avoidance of Hazardous Substances DIN 51 604-2 Methanolic FAM Testing Fluid for Polymer Materials; Composition and Requirements DIN 53 479 Testing of Plastics and Elastomers; Determination of Density DIN 53 504 Test
20、ing of Rubber; Determination of Tensile Strength at Break, Tensile Stress at Yield, Elongation at Break and Stress Values in a Tensile Test DIN 53 505 Testing of Rubber Shore A and Shore D Hardness Test DIN 53 507 Testing of Rubber; Determination of Tear Strength; Trousers Test Piece VDA 260 Bauteil
21、e von Kraftfahrzeugen; Kennzeichnung der Werkstoffe (Automotive Components; Identification of Materials only available in German) VDA 675 130 Elastomer-Bauteile in Kraftfahrzeugen; Prfverfahren zur Identifikation, Glhrckstand ohne chemische Behandlung (Elastomer Components in Motor Vehicles; Test Methods for Identification; Ignition Residue without Chemical Treatment only available in German) 1 In this section terminological inconsistencies may occur as the original titles are used.