SAE AMS 2515G-2013 Polytetrafluoroethylene (PTFE) Resin Coating Low Build 370 to 400 (698 to 752 Fusion《聚四氟乙烯(PTFE)树脂覆膜低构造370至400℃(698至752℉)熔断器》.pdf
《SAE AMS 2515G-2013 Polytetrafluoroethylene (PTFE) Resin Coating Low Build 370 to 400 (698 to 752 Fusion《聚四氟乙烯(PTFE)树脂覆膜低构造370至400℃(698至752℉)熔断器》.pdf》由会员分享,可在线阅读,更多相关《SAE AMS 2515G-2013 Polytetrafluoroethylene (PTFE) Resin Coating Low Build 370 to 400 (698 to 752 Fusion《聚四氟乙烯(PTFE)树脂覆膜低构造370至400℃(698至752℉)熔断器》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2012 SAE International All rights reserved. No part of this publication m
3、ay be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside U
4、SA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS2515G AEROSPACE MATERIAL SPECIFICATION AMS2515 REV. G Issued 1961-01 Reaffirmed 2003-05 Re
5、vised 2013-01 Superseding AMS2515F Polytetrafluoroethylene (PTFE) Resin Coating Low Build, 370 to 400 C (698 to 752 F) Fusion RATIONALE Acceptance test requirements in Rev. F are not practical to perfom on every lot. Some acceptance test requirements changed to be required on every batch, instead of
6、 every lot. 1. SCOPE 1.1 Purpose This specification establishes the engineering requirements for producing thin coatings of polytetrafluoroethylene (PTFE) resin on parts and the properties of such coatings. 1.2 Application Primarily to provide dry lubrication, high heat stability, and corrosion prot
7、ection on parts which operate at not higher than 275 C (527 F) for limited periods or not higher than 245 C (473 F) for extended periods. This coating may also be used as a release film for molds. 1.2.1 This coating should not be specified for use on parts made of, or coated with, metals, such as ca
8、dmium, lead, tin, and zinc, having melting points below or only slightly above the fusing temperature of 3.4. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this spec
9、ification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved. 2.
10、 APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced do
11、cument has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. SAE AMS2515G Page 2 of 6 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada
12、) or 724-776-4970 (outside USA), www.sae.org. AMS5045 Steel, Sheet and Strip, 0.25 Carbon, Maximum, Hard Temper 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM A 108 Steel Bars, Car
13、bon, Cold-Finished, Standard Quality ASTM B 117 Salt Spray (Fog) Testing 2.3 U.S. Government Publications Available from the Document Automation and Production Service (DAPS), Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6257, http:/assist.daps.dla.mil/quicksearch/. MI
14、L-STD-202 Test Methods for Electronic and Electrical Component Parts 3. TECHNICAL REQUIREMENTS 3.1 Material The coating materials (primer and finish coating) shall be dispersions of polytetrafluoroethylene (PTFE) resin solids in a water medium, The primer may be either pigmented or unpigmented. The
15、finish resin coating material shall be unpigmented unless colored material is specified by purchaser. 3.2 Preparation 3.2.1 Cleaning Surfaces, other than anodized aluminum or magnesium, to be coated shall be degreased, chemically cleaned or lightly abrasive blasted, cleaned to remove abrasive partic
16、les, and air dried. Anodized aluminum or magnesium surfaces need only be degreased and dried. 3.2.2 Preheating Immediately prior to coating, metals other than aluminum, magnesium, and copper, shall be preheated to 400 C 5 (752 F 9) to produce a light oxide film and remove any organic contamination a
17、nd air cooled. Preheating of aluminum, magnesium, and copper is not required. (See 8.2). 3.3 Coating 3.3.1 Primer A primer resin coat of 0.0002 to 0.0007 inch (5 to 18 m) dry film thickness shall be applied to the prepared surfaces and fused as in 3.4. SAE AMS2515G Page 3 of 6 3.3.2 Finish The finis
18、h resin coating material shall be applied to the primed surfaces in increments not greater than 0.001 inch (25 m) as required to yield a total dry film thickness not greater than 0.006 inch (152 m). Each coat shall be fused as in 3.4 before application of the succeeding coat. 3.3.2.1 For best corros
19、ion resistance, coated surfaces shall be sanded with 300 to 400 grit paper and cleaned between coats. 3.4 Fusing The resin coating shall be air-dried to a dry, non-glossy appearance or forced-heat dried at 65 to 95 C (149 to 203 F) for 5 to 10 minutes. Each intermediate coat shall be fused at 300 to
20、 330 C (572 to 626 F). The final dried coating shall be fused at 370 to 400 C (698 to 752 F) until fusing is complete. Fusing is complete when the milk-white (for unpigmented material), air-dried film changes to a clear, fused film. Fusing time will vary depending on the mass of metal being coated.
21、Unless otherwise permitted by purchaser, the fused coating shall be quenched in cold water, after the final fusing cycle, to provide maximum coating toughness. Adequate ventilation shall be provided in furnace areas to prevent inhalation of toxic fumes. 3.5 Repair of Damaged Areas Damaged areas shal
22、l be sanded to a feather edge. If basis metal is exposed, a new primer coat shall be applied. As many coats as required to build the film to its original thickness shall be applied, observing the coating thickness requirements of 3.3.2. Each coat shall be fused before application of the subsequent c
23、oat. Care shall be taken to remove any overspray of primer from the original top coat and to apply the resin coating well beyond the perimeter of the damaged area. After air drying, repaired areas shall be fused by means of an open flame. In fusing, heating to a temperature above that at which the c
24、oating changes to a clear, fused film shall be avoided; bright, glowing spots in the film are evidence of overheating and decomposition of the resin. Flame fusing shall be performed only under a hood or forced draft ventilation. 3.6 Properties The fused coating shall conform to the following require
- 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。
下载文档到电脑,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:
- SAEAMS2515G2013POLYTETRAFLUOROETHYLENEPTFERESINCOATINGLOWBUILD370TO400698TO752FUSION 聚四氟乙烯 PTFE 树脂 覆膜低
链接地址:http://www.mydoc123.com/p-1020680.html