紧固件的防护涂料

[中文适用范围]： 信息报告涵盖的技术、产品或流程，其技术专业知识不再存在于拥有该委员会中。 [外文原描述]： This SAE Information Report is provided as an advisory guide. Careful discretion as to application is recommended. The content has been presented as accurately as possible, but responsibility for its application lies with the user. It covers finishes applied to fasteners and related topics, corrosion resistance, lubricity, electrical grounding, ultraviolet light, and embrittlement.Table 1 lists these coatings and their properties so that finish selection can be reasonably made in accordance with known and anticipated fastener assembly applications.Application of protective coatings will affect fastener dimensions. This is especially critical for the thread fit of mating parts because the pitch diameter increases by four times the coating thickness. Explanation is covered in Section 5 .Cross Reference: J1701_201304,J1701_201702,J995_201202,J995_201707