ASTM D6456-1999(2004) Standard Specification for Finished Parts Made from Polyimide Resin《由聚酰亚胺树脂生产的精致部件的标准规范》.pdf
《ASTM D6456-1999(2004) Standard Specification for Finished Parts Made from Polyimide Resin《由聚酰亚胺树脂生产的精致部件的标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6456-1999(2004) Standard Specification for Finished Parts Made from Polyimide Resin《由聚酰亚胺树脂生产的精致部件的标准规范》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 6456 99 (Reapproved 2004)Standard Specification forFinished Parts Made from Polyimide Resin1This standard is issued under the fixed designation D 6456; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification is intended to be a means of callingout finished plastic parts ready for industrial or consumer use.1.
3、2 This specification covers finished parts and shapes fromwhich parts are machined, made from a semi-crystallinepolyimide (PI).1.3 This specification is intended to replace MIL-R-46198and Provisional Standard Specification PS 93.NOTE 1There is no similar or equivalent ISO standard.1.4 This specifica
4、tion covers parts made from semi-crystalline polyimide, which is a thermosetting material thatshows no softening or melting by DMA (D 4065) at or below260C 500F.1.5 Since PI is a thermoset resin, no provisions are includedfor recycled products.1.6 The classification system outlined in this specifica
5、tion isintended to be identical to that used by Department of Defensefor over 20 years. No changes are intended at this time.1.7 The values are stated in SI units and are regarded as thestandard in all property and dimensional tables. For referencepurposes, inch-pound units are stated in brackets.1.
6、8 ApplicationParts in this specification are generallyused for applications requiring the following combination ofproperties: low coefficient of friction, and low thermal expan-sion coupled with heat resistance for continuous operation attemperatures up to 260C 500F and for short-term excur-sions up
7、ward to 482C 900F.1.9 The following precautionary caveat pertains only to thetest method portion, Section 12, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish
8、appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D 638 Test Method for Tensile Properties of PlasticsD 695 Test Method for Compressive Properties of RigidPlasticsD 790 Test Methods for Flexural P
9、roperties of Unreinforcedand Reinforced Plastics and Electrical Insulating MaterialsD 792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD 883 Terminology Relating to PlasticsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 1708 Test Method
10、for Tensile Properties of Plastics byUse of Microtensile SpecimensD 3892 Practice for Packaging/Packing of PlasticsD 4065 Practice for Determining and Reporting DynamicMechanical Properties of PlasticsE 8 Test Methods for Tension Testing of Metallic Materials2.2 ANSI Standard:Z1.4 Standard for Sampl
11、ing Plans and Tables for Inspectionby Attributes3,42.3 Military Standards:MIL-R-461985MIL-STD 12953. Terminology3.1 DefinitionsTerms are defined in accordance with Ter-minologies D 883 and D 1600 unless otherwise indicated.4. Classification4.1 Product shape and size as defined in the applicablepurch
12、ase order.4.2 The type of product shall be categorized by type andclass depending on resin and filler compositions defined asfollows:1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.20 on Plastic Products.Current edit
13、ion approved March 1, 2004. Published June 2004. Originallyapproved in 1999. Last previous edition approved in 1999 as D 6456 - 99.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume informa
14、tion, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.4Replaced MIL-STD-105.5Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Ph
15、iladelphia, PA 19111-50981Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Type I Unfilled base resinType II Resin with graphite fillerClass 1 15 % by weight graphite filler, nominalClass 2 40 % by weight graphite filler, nominalClass
16、3 15 % by weight graphite and 10 % by weight fluorocarbonfillers, nominalType III 15 % by weight molybdenum disulfide filler, nominalNOTE 2Filler contents shown above are approximate. See Table 1 forexact composition.4.3 Polymer compositions shall be specified by use oftype/class designations as des
17、cribed in Table 1.4.4 Manufacturing method and product form shall be speci-fied by use of a suffix letter as described in Table 2.4.5 When applying the suffix letter, the type/class designa-tion shall precede the letter.5. Ordering Information5.1 All shapes covered by this specification shall be ord
18、eredusing the proper callout designation (see Section 4).6. Material6.1 The base material shall consist of semi-crystalline poly-imide resins with a base polymer structure derived frompyromellitic dianhydride and 4,48-diaminodiphenylether.6.2 The base material shall conform to the compositionrequire
19、ments of Table 1. The base material, depending on typeand class, may contain up to 50 wt % pigments, fillers orlubricants, or a combination thereof, and no fibrous reinforce-ment.6.3 Recycle of unworked resin, such as spills, shall bepermitted to the extent that the resultant material meets allprope
20、rty requirements specified herein.6.4 No reground material shall be permitted.6.5 The basic material shall be free of major defects andcontaminants that would be detrimental to fabrication orperformance of a finished part.7. Physical Property Requirements7.1 The physical property values listed withi
21、n this specifi-cations tables are to be considered minimum specificationvalues. Any requirement for specific test data for a givenproduction lot should be specified at the time of order.8. Dimensional Requirements8.1 Size, shape, dimensions, and tolerances are to be deter-mined by agreement between
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