1、 WORLDWIDE ENGINEERING STANDARDS Test Procedure GMW15736 Tensile Test for Adhesive for Bonding Stationary Glass Copyright 2013 General Motors Company All Rights Reserved June 2013 Page 1 of 3 1 Scope 1.1 Purpose. This standard describes a test procedure to determine the tensile strength of adhesives
2、 used for bonding stationary glass. 1.2 Foreword. Not applicable. 1.3 Applicability. This procedure applies to qualification of adhesives used to bond fixed automotive glass in vehicle body openings. It can be used to determine uncured (green) and cured tensile strength. It is referenced in GMW3041,
3、 Performance Requirements for Bonding and Sealing of Stationary Automotive Glass. This test procedure is also commonly referred to as “H Tensile”. Note: Nothing in this standard supercedes applicable laws and regulations. Note: In the event of conflict between the English and domestic language, the
4、English language shall take precedence. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specifications. GMW3041 GMW3221 2.3 Additional References. B 040 0007 Bulk solvent used at GME assembl
5、y plants 3 Resources 3.1 Facilities. Not applicable. 3.1.1 Calibration. The test facilities and equipment shall be in good working order and shall have a valid calibration label. 3.1.2 Alternatives. Alternative test facilities and equipment may also be used. However, all measuring variables as speci
6、fied in this standard shall be determined correctly with respect to their physical definition. 3.2 Equipment. 3.2.1 Tensile tester capable of pulling 5000 N with a cross-head speed of 500 mm/minute. 3.2.2 Quantity of 50 150 mm cold rolled steel (CRS) panels. 3.2.3 Quantity of 50 150 mm cold rolled (
7、CR) tempered/plate glass panels. 3.2.4 Quantity of 6.4 mm spacers. 3.2.5 Air operated or electric adhesive cartridge dispense gun capable of producing a bead of 6.4 mm wide 8.5 mm high. 3.2.6 A pair of special jaws for pulling samples (see Figure 1). Copyright General Motors Company Provided by IHS
8、under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15736 Copyright 2013 General Motors Company All Rights Reserved June 2013 Page 2 of 3 Note: All dimensions in millimeters. Material: 3.2 C
9、RS Stock Figure 1: Tensile Jaws 3.3 Test Vehicle/Test Piece. Glass bonding adhesive system including required primers. 3.4 Test Time. Not applicable. 3.5 Test Required Information. Not applicable. 3.6 Personnel/Skills. Not applicable. 4 Procedure 4.1 Preparation. 4.1.1 Prepare the appropriate number
10、 of test specimens for each test condition as dictated by the material specification. If not specified prepare five test specimens for each test condition. 4.1.2 Clean all substrates with Varnish Makers and Painters Naphtha (VM&P Naphtha) or Test Petrol B 040 0007 unless otherwise specified. 4.1.3 P
11、repare the glass panels as described in the individual material specification, (i.e., required primers). 4.1.4 Prepare the steel panels as described in the individual material specification, (i.e., required primers). 4.2 Conditions. 4.2.1 Environmental Conditions. All testing in standard conditions
12、to this specification shall be performed in accordance with GMW3221 Code A, Procedure for Standard Conditions of Organic Materials. 4.2.2 Test Conditions. Deviations from the requirements of this standard shall have been agreed upon. Such requirements shall be specified on component drawings, test c
13、ertificates, reports, etc. 4.3 Instructions. 4.3.1 Apply a 6.4 mm wide and 8.5 mm high adhesive bead that is 100 mm long onto the center of the glass panel. 4.3.2 Place a 6.4 mm spacer at each end of the glass panel. 4.3.3 Place the steel panel, primed side to the adhesive bead, directly over the gl
14、ass panel. Make sure that the adhesive contacts the steel panel for its full length. Clamp the panels together. 4.3.4 Condition samples as described in the individual material specification. 4.3.5 Pull samples in tension at a rate of 500 mm/minute using the special grips shown in Figure 1. Note: Dra
15、pe rags over the tensile fixture to contain any cracked glass fragments. Record the maximum load. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STAN
16、DARDS GMW15736 Copyright 2013 General Motors Company All Rights Reserved June 2013 Page 3 of 3 4.3.6 Identify the type of failure (i.e., cohesive, adhesive, bond interface, etc.) Only cohesive failure measures the tensile strength of the adhesive. 5 Data 5.1 Calculations. Not applicable. 5.2 Interpr
17、etation of Results. Not applicable. 5.3 Test Documentation. Record all materials used during testing including the following information. 5.3.1 Test material source identification. 5.3.2 Test material product identification. 5.3.3 Test material batch numbers. 5.3.4 Substrate identification. 5.3.5 Re
18、cord the following test results. 5.3.5.1 Maximum load Newton. 5.3.6 Criteria for acceptable results are determined by the applicable material specification. 6 Safety This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all the safety pro
19、blems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbreviations, and Symbols. CR Cold ro
20、lled CRS Cold rolled steel VM&P Naphtha Varnish Makers and Painters Naphtha 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Test to GMW15736 9 Release and Revisions This standard was originated in November 2007. It was first approved by the GM Global
21、 Adhesives Team in February 2008. It was first published in February 2008. Issue Publication Date Description (Organization) 1 FEB 2008 Initial publication. 2 JUN 2013 Refresh. (Adhesives Global Subsystem Leadership Team) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
