NAVISTAR MPAPS K-6900-2017 Structural Adhesives C Part 1 and Part 2.pdf

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1、This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar Inc. SEPTEMBER 2017 Page 1 of 19 NAVISTAR, INC. Material, Parts, and Process Specificatio

2、ns (MPAPS) NUMBER: MPAPS K 6900 Former Designation: TMS-6900 TITLE: Structural Adhesives Part 1 and Part 2 CURRENT REV No.: 1709 DATE: Sep. 2017 WRITTEN/EDITED BY: A. Hasan APPROVED BY: R. Goluch SUPERSEDES: Rev. 1608 Aug 2016 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION Thi

3、s specification may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicability of regulatory lim

4、its prior to use. Part 1 General, Property, and Performance Requirements 1.0 APPLICATION Part 1 of this specification covers structural adhesive systems used for bonding parts in the construction of truck and tractor cabs and components, such as: hood and fender assemblies, body panels, roof compone

5、nts, air conditioning components, and other parts used in truck manufacture. Part 2 covers the production process requirements for structural bonding systems. 2.0 SCOPE This specification covers the material properties, performance requirements, production quality and process control, suppliers resp

6、onsibility, source approval and quality control, general information, and sources for the approved systems. 2.1 Description of Adhesive Resin Systems 2.1.1 Type I One-part pumpable, heat cured epoxy 2.1.2 Type II One-part extruded, heat cured epoxy with or without fiberglass layer 2.1.3 Type III Two

7、-part epoxy 2.1.4 Type IV Two-part urethane 2.1.5 Type V Two-part acrylic 2.1.6 Type VI Two-part methacrylate 2.1.7 Type VII Hot melt 2.2 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the

8、MPAPS B-50 specification. 3.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following Specifications, Standards, and Regulations are referenced in this specification. Quality System Standard ISO 9001 or TS-16949 CFR Title 29, Part 1910

9、NAVISTAR MPAPS D-7133 NAVISTAR TMS-9522 ASTM E132 GM 9037P NAVISTAR Supplier Packing and Shipping Std. D-13 NAVISTAR MPAPS P-9543 SAE J243 NAVISTAR Engineering Design Std. A-16 NAVISTAR MPAPS G-5 SAE J1523 NAVISTAR MPAPS B-50 NAVISTAR MPAPS A-6 ASTM D1002 ASTM D5041 SAE J1525 SAE J1553 NUMBER: MPAPS

10、 K-6900 TITLE Structural Adhesives Part 1 and Part 2 REVISION: 1709 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar Inc. SEPTEMBER2017 Pa

11、ge 2 of 19 NAVISTAR MPAPS C-10 ASTM D2240 SAE J2334 NAVISTAR MPAPS D-22 ASTM D2294 ASTM B117 NAVISTAR MPAPS D-28 ASTM D2919 ASTM D638 NAVISTAR MPAPS GT-24 WSB-M18P11-A2 ASTM D3163 NAVISTAR MPAPS GT-Paint 4.0 REQUIREMENTS Adhesive materials supplied to this specification shall bond the intended subst

12、rates to produce a permanent and structural bond. The general properties of as received materials, in the uncured state, are listed in Table 4. Adhesive materials supplied to this specification shall be compatible with all subsequent cleaning, pre-treat, and paint operations used in the Assembly Pla

13、nt(s) and with current production materials for which the new adhesive approval is sought. 4.1 General Properties Properties are provided for reference only. Properties shall be reported on submitted test reports and will be included in Table 4. 4.1.1 Uncured Properties Specific requirements are to

14、be determined between the material supplier, equipment supplier and the applicator. 4.1.1.2 Solids: 4.1.1.2.1 Method: SAE J243 Procedure ADS-7, Method A 4.1.1.2.1 Requirement: Report 4.1.1.3 Viscosity: 4.1.1.3.1 Method A: SAE J243, Procedure ADS-1, Agitated - Conditioning Method C, Pressure Flow Met

15、hod 275 kPa (40 psi), 25 1C (77 2F), 20 g. 4.1.1.3.2 Method B: SAE J243, Procedure ADS-1, Agitated - Conditioning Method C, Test 2.2 Brookfield, spindle 7, 50 RPM 4.1.1.3.3 Requirement: Report 4.1.1.4 Aged Viscosity: 4.1.1.4.1 Method: Age sample at 43 1C (110 2F) for 72 hours. Test per corresponding

16、 method on section 4.1.3. 4.1.1.4.2 Required: Report 4.1.1.5 Process Compatibility: Uncured adhesive shall remain in joints without flow or washout through the spray and immersion stages of pre-treat and E-coat. It shall be the suppliers responsibility to provide evidence of compatibility. 4.1.1.5.1

17、 Method: MPAPS GT-24 4.1.1.5.2 Required: Pass 4.1.1.6 Fiberglass Constricted Layer: If specified, die cut materials shall be supplied with a square weave fiberglass constricted layer. There shall be no loose glass fibers after the die cutting operation. 4.1.1.7 Weldability: This requirement is only

18、applicable when designated as a weld-through adhesive. 4.1.1.7.1 Method: SAE J243 Weld-Through Test ADS-3, Method B. 4.1.1.7.2 Required: Shall meet tensile, flashing, electrode life, and electrode pickup, as specified. NUMBER: MPAPS K-6900 TITLE Structural Adhesives Part 1 and Part 2 REVISION: 1709

19、This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar Inc. SEPTEMBER2017 Page 3 of 19 4.1.2 Cured Material Properties 4.1.2.1 Tensile Strength-

20、Ultimate (for materials which do not exhibit a definite yield point) or Yield Strength (for materials which do exhibit this property). Will be determined by ASTM D638 using the 0.2 percent offset method. Speed of test will be as designated in the appendices of ASTM D638 or as agreed upon for new mat

21、erials not listed. 4.1.2.2 Ultimate Elongation. Will be determined by ASTM D638. Speed of test will be as designated in the appendices of ASTM D638 or as agreed upon for new material not listed.4.1.2.3 Tensile Modulus. ASTM D638 will determine tangent modulus of elasticity at 23C. Speed of testing w

22、ill be as designated in Table 1 of ASTM D638 or as agreed upon for materials not listed. 4.1.2.4 Poissons Ratio Determine per ASTM E132. 4.1.2.5 Shrinkage (Non Expanding Pumpables, Only) 4.1.2.5.1 Method: Fill a small, flat container 50 mm diameter x 6 mm height (2 in diameter x 1/4 in height) with

23、adhesive material and subject leveled product to maximum bake temperatures for 40 minutes. Observe at room temperature. 4.1.2.5.2 Required: Shall show no visible evidence of shrinkage, cracking or overflow. 4.1.2.6 Volume Expansion/Shrinkage 4.1.2.6.1 Method: Test per GM 9037P, or WSB M-18P11-A2 on

24、coupons prepared in 4.2.1 Sample Preparation. Obtain substrate test coupons that are dimensionally capable of supporting the entire part. For sheet stock, extrusions or injection-molded samples, avoid cutting from the edges of the sheet or part. 4.1.2.6.2 Required: Report only, requirements are unde

25、r development. 4.2 Property and Performance Requirements In the event of material screening the performance test matrix may be truncated to include only shear strength values for initial, 70C or 120C hot pull (unless otherwise instructed), -40C cold pull, and 168-hour water immersion conditions. 4.2

26、.1 Sample Preparation A minimum of five samples shall be prepared for each condition tested. The surface condition tested shall be representative of production conditions and fully described in the test report. The bond line shall be between 0.25 and 1 mm (.010 and .040 inches) thick; normally metal

27、 at 0.25mm and plastic at 0.76mm (0.030 in). The overlap shall be 12.5 mm (.5 inch) for metal and 25 mm (1 inch) for plastic, unless otherwise directed. The cure conditions shall be described fully in the test report and should closely match the production cure conditions. Times and temperatures sho

28、uld represent actual bond line conditions rather than the reported temperatures of the heating elements or the oven air temperature. These cure conditions will be listed on the attached tables and shall be reproducible for future testing. Production cure conditions are listed in Table 3. 4.2.1.1 Ste

29、el Surface Preparation: Two sets of five samples shall be made for each condition tested. Solvent (acetone) clean samples thoroughly. The first set shall be tested clean. The second set shall have a light oil coating, as in steps 5 and 6 listed below, under Aluminum Surface Preparation. 4.2.1.2 Alum

30、inum Surface Preparation: Three sets of five samples of aluminum test samples shall be made for each condition tested. Solvent (acetone) clean samples thoroughly. The first set shall be tested NUMBER: MPAPS K-6900 TITLE Structural Adhesives Part 1 and Part 2 REVISION: 1709 This document is restricte

31、d and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar Inc. SEPTEMBER2017 Page 4 of 19 clean. The second set shall have a light oil coating, as in steps 5 and 6 listed be

32、low. The third set shall be prepared in the following manner: 1) Clean samples thoroughly with acetone. 2) Apply Mill Oil (Ashland Tectyl 900) liberally to the bonding surface. 3) Wipe oil off surface with a clean, soft, paper lab towel. A light oil residue should remain. 4) Bake samples for four (4

33、) hours at 200C (392F). 5) Apply Drawing lubricant (Quaker 61AUS)* liberally to the bonding surface. 6) Wipe oil off surface with a clean, soft, paper lab towel. A light oil residue should remain. 7) Prepare test samples as required. * Other lubricants will be used in production. Adhesives and lubri

34、cants shall be compatible with each other. Testing compatibility shall be the responsibility of the supplier of the new material. The Plant Metallurgist or QC Manager at the Navistar Body Plant in Springfield, Ohio maintains a list of approved lubricants. 4.2.1.3 Plastic and Painted Surface Preparat

35、ion: One set of five samples shall be made for each condition tested. Freshly painted surfaces shall be aged for 72hrs at 49 3C (120 5F) prior to surface preparation. Solvent (isopropanol) clean samples thoroughly prior to bonding. 4.2.2 Lap Shear Strength 4.2.2.1 Method: Prepare samples as directed

36、 in 4.2.1 Sample Preparation. Test per ASTM D3163 or ASTM D1002, as appropriate. Tensile machine jaw separation rate shall be 13 mm (.5 in) per minute. Test overlap shear at the temperatures specified in Table 1A after holding at temperature for 30 minutes. Report the average of five tests and their

37、 failure modes. 4.2.2.2 Required: See Table 1A. 4.2.3 Cross Peel Test 4.2.3.1 Method: Prepare samples as indicated in 4.2.1 Sample Preparation except for the geometry requirements of SAE J1553, with an adhesive thickness of 0.75 mm (30 mil). Refer to table 1B for test conditions. 4.2.3.2 Required: S

38、ee Table 1B for required values. 4.2.4 Cleavage Fracture Strength 4.2.4.1 Method: Prepare samples as indicated in 4.2.1 Sample Preparation except for the geometry requirements of ASTM D5041. Test per ASTM D5041. Test samples un-aged and after water-immersion. 4.2.4.2 Required: A minimum of 75% fiber

39、 tear is required for FRP samples. Report peak load, failure initiation energy and failure propagation energy. See Table 1A. 4.2.5 Stress Durability 4.2.5.1 Method: Test per ASTM D2919 using a fixture described in either ASTM D2294 or ASTM D2919. Prepare samples as indicated in 4.2.1 Sample Preparat

40、ion except for the geometry requirements of ASTM D2919 or D2294. Load samples to 2 MPa (290 psi). Test samples after 6 weeks of exposure per the cycle below. Cycle may be interrupted for weekends and holidays, in which case leave the samples in humidity for that period. 1) 16 hours humidity 2) 2 hou

41、rs -30 2C (-22 3.6F) 3) 2 hours at ambient conditions NUMBER: MPAPS K-6900 TITLE Structural Adhesives Part 1 and Part 2 REVISION: 1709 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to

42、assume all patent liability. 2017 by Navistar Inc. SEPTEMBER2017 Page 5 of 19 4) 2 hours 70 2C (158 3.6F) 4.2.5.2 Required: Report time to failure or residual load per Lap Shear Strength above. 4.2.6 Corrosion 4.2.6.1 Method: Expose coupons prepared as in section 4.2.1 Sample Preparation for shear s

43、trength test to 500 hours of ASTM B117 salt spray. Test residual load per lap shear strength above. 4.2.6.2 Required: See Table 1A. 4.2.7 Humidity 4.2.7.1 Method: Test per MPAPS GT-Paint, method 7E on coupons prepared in 4.2.1 Sample Preparation for shear strength test for 500 hours. 4.2.7.2 Require

44、d: See Table 1A. 4.2.8 Water Immersion 4.2.8.1 Method: Immerse coupons prepared in 4.2.1 Sample Preparation for shear strength test and cross peel in distilled water at 25C (77F) 2C (3.6F) for 500 hours. 4.2.8.2 Required: See Table 1A for shear and Table 1B for cross peel. 4.2.9 Over-bake 4.2.9.1 Me

45、thod: Prepare samples for lap shear as directed in 4.2.1 Sample Preparation and in 4.1.2.5 Shrinkage. Over-bake samples in re-circulating air oven for (4) hours at maximum bake temperatures. Check hardness per ASTM D2240, and residual lap shear strength. 4.2.9.2 Required: 4.2.9.2.1 After Over-baking

46、: 3 points maximum change from original hardness. 4.2.9.2.2 Over-baked material shall not darken substantially or show other evidence of degradation. 4.2.9.2.3 Shall retain 95% of original strength by lap shear. 4.2.10 Heat-Aging 4.2.10.1 Method: Prepare samples for lap shear and cross peel as direc

47、ted in 4.2.1 Sample Preparation. Heat-Age in a re-circulating air oven for 500 hours at 90 2C (194 3.6F). Test residual strength. 4.2.10.2 Required: Retain strength as indicated in Table 1A for shear and Table 1B for cross peel. 4.2.11 Cyclic Aging 4.2.11.1 Method: Prepare samples for lap shear as d

48、irected in 4.2.1 Sample Preparation. Test overlap shear after 60 cycles of SAE J2334, allowing samples to return to ambient room temperature for 24 hours prior to testing. 4.2.11.2 Required: See Table 1A. 4.2.12 T-Peel (metal only) 4.2.12.1 Method: This is a modified ASTM D1876 to measure break-away

49、 force. The metal is to be bent in order to create the tabs prior to bonding. The metal surface shall be prepared as directed in 4.2.1 Sample Preparation with an adhesive thickness of 0.75 mm (30 mil). Refer to Table 1B for test conditions. 4.2.12.2 Required: See Table 1B. NUMBER: MPAPS K-6900 TITLE Structural Adhesives Part 1 and Part 2 REVISION: 1709 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Sta