ARMY MIL-P-63462-1979 PLASTIC MOLDING AND EXTRUSION MATERIAL ETHYL CELLULOSE FOR ROCKET GRAIN INHIBITING MATERIALS《火箭药柱抑制剂用注塑加工和挤压成型乙基纤维素材料》.pdf
《ARMY MIL-P-63462-1979 PLASTIC MOLDING AND EXTRUSION MATERIAL ETHYL CELLULOSE FOR ROCKET GRAIN INHIBITING MATERIALS《火箭药柱抑制剂用注塑加工和挤压成型乙基纤维素材料》.pdf》由会员分享,可在线阅读,更多相关《ARMY MIL-P-63462-1979 PLASTIC MOLDING AND EXTRUSION MATERIAL ETHYL CELLULOSE FOR ROCKET GRAIN INHIBITING MATERIALS《火箭药柱抑制剂用注塑加工和挤压成型乙基纤维素材料》.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、1 1 MIL-P-63462 73 W 7939706 0322373 7 W 7-57 - -Y 7 NIL-P-6 34 6 2 (AR) 10 September 1979 MILITARY SPECIFICATION PLASTIC MOLDING AND EXTRUSION MATERIAL, ETHYL CELLULOSE, FOR ROCKET GRAIN INHIBITING MATERIALS This specification is approved for use by the Missile Command, Department of the Army and i
2、s available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 molding, and extrusion for rocket grain inhibiting materials. This specification covers ethyl cellulose suitable for injection 1.2 Classification. The ethyl cellulose compounds shall be of the following ty
3、pes and classes (see Table I), as specified. (See 6.2). Table I. Classification of ethyl cellulose compounds Type Class Tensile strength, MPa (psi) min I - Extrusion 1 37.2 (5400) 2 33 (4800) 3 31 (4500) II - Injection molding 1 26 (3800) 2. Applicable Documents 2.1 The following documents of the is
4、sue in effect on date of invita- tion for bids or request for proposal; form a part of this specification to the extent specified herein. MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. MIL-STD-129 - Marking for Shipment and Storage. Beneficial comments (recommend
5、ations, additions, deletions) and any per- tinent data which may be of use in improving this document should be addressed to: Commanding General, Ariny Armament Research and Development Command, ATTN: DRDAR-LCA-OK, Dover, NJ 07801 by using the self-addressed Standardization Document Improvement Prop
6、osal (DD Form 1426) appearing at the end of this document or by letter. pr. FSC 9330 Licensed by Information Handling ServicesMIL-P-63q62 93 9999906 0322392 O = MIL-P-63462 (AR) (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procure
7、ment functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. the issue in effect on date of invitation for bids or request for proposal. shal
8、l apply. Unless otherwise indicated, American Society for Testing and Materials (ASTM) Standards: D 569 Measuring the Flow Properties of Thermoplastic Molding Materials. D 570 Water Absorption of Plastics. D 618 Conditioning Plastics and Electrical Insulating Materials for Testing . D 638 Tensile Pr
9、operties of Plastics. D 648 Deflection Temperature of Plastics Under Load. D 785 Rockwell Hardness of Plastics and Electrical Insulating Materials. D 792 Specific Gravity and Density of Plastics by Displacement. D 914 Standard Method of Testing Ethyl Cellulose. (Application for copies should be addr
10、essed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103.) National Motor Freight Traffic Association, Incorporated, Agent: Natjlonal Motor Freight Classification. (Application for copies should be addressed to the American Trucking Associations, In
11、c., Tariff Order Section, 1616 P Street N.W., Washington, D.C. 20036.) Uniform Classification Committee, Agent: Uniform Freight Classification (Application for copies should be addressed to the Uniform Classification committee, Room 1106, 22 South Riverside Plaza, Chicago, Illinois 60606.) U.S. Depa
12、rtment of Transportation (DOT) Specification 21C - Fiber Drums (This and other specifications on hazardous materials issued by DOT are published in the Code of Federal Regulations (CFR), available from the Superintendent of Documents. U.S. Government Printing Office, Washington, D.C. 20402. Spec 21C
13、 is published in Title 49, p. 945, 8178.224.) 2 o :. Licensed by Information Handling ServicesI flIL-P-63qb2 93 = 999990b 0322393 2 MIL-P-63462 (AR) 3. REQUIREMENTS 3.1 Material. The material shall consist of plasticized ethyl cellulose thermoplastic compounds as follows: Proportions. - The ingredie
14、nts of the material shall be compounded in the following proportions: Type 1 5Pe 2 Ethyl Cellulose Flake 100 Parts 100 Parts Stabilizer O to 2.2 Parts Plasticizer 17.7 to 25.0 Parts 31 to 35 Parts . - When a stabilizer is used, a corresponding reduction in the limits of plasticizer is requlred. tion
15、s of flake and plasticizer to be varied to give the proper extrudability and desired physical properties to the compounded material. The variation in formulation allows the propor- 3.1.1 Ethyl Cellulose Flake Ethoxyl content 45% to 47% (ASTM D 914) Viscosity of flake 65 to 85 x lo3 Pa-s (65 to 85 cp
16、s) (When measured at 25 2 l0C with a 5% solution of the flake in a 60/40 solution of toluene/95% ethanol in accordance with ASTM D 914). NOTE: One acceptable source of this material is: Dow Chemical USA (Ethocel, Standard Grade, 70 cps completely de- ached). 3.1.2 Plasticizer, substituted phenyl eth
17、er - with bis (p-1,1,3,3 (Dow P- tetramethyl butyl phenyl) ether as the principal constituent. 1099 plasticizer is the only commercial form of-this material). Specification: (1) Color Light Amber (2) Minimum % Transmission 45 through 1 cm. of liquid (450 millimicron wave length) (3) Viscositz at 25O
18、C, m /s (.Cent istokes) 4 - 8 x (4000 - 8000) (4) % Volatile (148.5OC and 9 5 x lo2 Pa (4mm Hg) pressure for one hour) maximum 3 . Licensed by Information Handling ServicesMIL-P-63462 73 9999906 0122394 4 MIL-P-6 3 4 6 2 (AR) (5) Acid number O. 5 (6) Specific Gravity, 25/4OC O. 92-0.95 3.1.3 Dye or
19、Colorants. - No dye or other colorant is permissible unless otherwise specified by the procuring agency. 3.1.4 Stabilizer. Epoxy Resin - Em-2774 (manufactured by Union Carbide Company) may be used as a stabilizer. be used as stabilizers with permission of the procuring activity. Alternate materials
20、may 3.2 Property values. The material shall conform to the property values specified in Table II, when tested as specified in the applicable procedure of 4.3. Table II. Property values. Type I Type II Property Class 1 Class 2 Class 3 Class I Specific gravity 23/23OC (73F) (unpigmented), max. 1.12 1.
21、12 1.12 1.10 Tensile strength, min, (5400) (4800) (4500) (3800) MPa (psi) 37 33 31 26 Deflection temperature at- 264 psi fiber stress, min: OC F 71 66 60 49 160 150 140 120 Flow temperature OC 145-155 145-155 145-155 135-14.5 Water absorption, max, percent weight gain 2 2 2 2 Hardness (Rockwell), mi
22、n, R Scale 100 100 100 95 P Weight loss on heating, max, percent 1.5 1.5 1.5 1.8 4 L Licensed by Information Handling ServicesMIL-P-63q62 73 W 79777Ob 0322375 b W MIL-P -63462 (AR) 3.3 Flow temperature. The flow temperature shall be tested when required by the procuring activity. and class of materi
23、al shall be within - + SOC (gol?) of that specified by the procuring activity. Flow temperature of a given type 3.4 Form. The form shall be as specified by the procuring activity. The.plastic granule size shall be uniform. maintained by screening the plastic granules through a screen with .187 inch
24、square openings. The plastic granules shall pass through a 0.1875- inch size screen. The uniformity shall be 3.5 Color and transparency. the material shall be as specified by the procuring activity. transparency shall be uniform. shall have its basic color-slightly amber. The color and degree of tra
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
本资源只提供5页预览,全部文档请下载后查看!喜欢就下载吧,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ARMYMILP634621979PLASTICMOLDINGANDEXTRUSIONMATERIALETHYLCELLULOSEFORROCKETGRAININHIBITINGMATERIALS 火箭

链接地址:http://www.mydoc123.com/p-446833.html