1、AEROSPACE MATERIAL SPECIFICATIONAMS3217/7 REV. AIssued 1995-08Reaffirmed 2007-07Revised 2014-09Superseding AMS3217/7Test Slabs, High Strength, Fluorosilicone (FVMQ)55 - 65RATIONALEAMS3217/7A results from a Five Year Review and update of this specification. Tradename information has been updated and
2、specific gravity has been updated to reflect the current sales specification.1. SCOPE1.1 FormThis specification covers a high strength fluorosilicone (FVMQ) rubber stock in the form of molded test slabs.1.2 ApplicationSee AMS3217.2. APPLICABLE DOCUMENTSSee AMS3217.3. TECHNICAL REQUIREMENTS3.1 Basic
3、SpecificationsThe complete requirements for test slabs described herein and their procurement shall consist of this document and the latest issue of the basic specification AMS3217.3.2 MaterialShall be a fluorosilicone (FVMQ) compounded to the formulation shown in Table 1._SAE Technical Standards Bo
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7、mail: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS3217/7ASAE INTERNATIONAL AMS3217/7A Page 2 of 3TABLE 1 - FORMULATIONIngredients PartsSilastic LS 2860 or equivalent11
8、00.0 (See 3.2.1)Xiameter RBM-9002 or equivalent11.0 (See 3.2.2)Varox DPH-50 or equivalent11.0 (See 3.2.2)Press Cure: 10 minutes r 0.5 at 340 F 5 (171 C 3)Oven Cure: 4 hours 0.2 at392 F 5 (200 C 3)1 Equivalent ingredients must be approved by AMS Committee “CE”.3.2.1 Weigh parts to the nearest 0.1 gra
9、m.3.2.2 Weigh parts to the nearest 0.02 gram.3.3 ProcessingAfter the elastomer has banded on the rubber mill, the other ingredients shall be added in the order listed in 3.2.3.3.1 The stock shall not be allowed to become hotter than can be handled with the bare hands; it is recommended that the stoc
10、k be removed from the mill and cooled to room temperature before incorporating the final ingredient.3.3.2 After all ingredients have been incorporated and the stock has been thoroughly milled, the stock shall be passed through the mill 10 times, crossblending after each pass.3.3.3 Suitable preforms
11、shall be cut from the freshly milled stock and molded into test slabs as specified in ASTM D 3182, Figure 1.3.4 PropertiesShall be as shown in Table 2.TABLE 2 - PROPERTIESParagraph Property Requirement Test Method3.4.1 Hardness, Durometer“A” or equivalent 60 5 ASTM D 22403.4.2 Tensile Strength, min
12、1200 psi(8.27 MPa)ASTM D 4123.4.3 Elongation, min 300% ASTM D 4123.4.4 Specific Gravity 1.46 0.03 ASTM D 2973.4.5 Synthetic Lubricant Immersion: AMS 3021302 F 5(150 C 3)3.4.5.1 Volume Change +4 to +10% 70 hours 0.54. QUALITY ASSURANCE PROVISIONSSee AMS3217.SAE INTERNATIONAL AMS3217/7A Page 3 of 35. PREPARATION FOR DELIVERYSee AMS3217.6. ACKNOWLEDGMENTSee AMS3217.7. REJECTIONSSee AMS3217.8. NOTESSee AMS3217.PREPARED BY AMS COMMITTEE “CE”
