欧洲午夜福利视频在线观看,老司机电影网你懂的,再深点灬舒服灬太大了O,无码激情做A爰片毛片A片小说,亚洲精品久久久久中文另类,大尺度激情做爰A片纯真时代,天天看片AV色综合,日本精品巨爆乳无码大乳巨H,日日噜噜夜夜爽爽,人人爽久久久噜噜噜婷婷

Products

products

SF-PK material

  • parameters

SF-PK material is a new type of material. It consists of steel plate, copper powder layer and PEEK+ filling material. Its main performance is embodied in PEEK material. It is a polymer, temperature resistant, wear resistant and corrosion resistant material. Especially in the case of water lubrication and less oil lubrication, the performance is even better. Since the wear layer of the surface PEEK has a thickness of 0.1 mm or more, the service life of the SF-1 material is significantly longer than that of the general SF-1 material. At present, the high-quality shock absorber guide portion, the tank, the rocket lifting portion and the machine tool sliding guide have been Used, it is a high performance product.


Maximum load pressure: 100N/mm2

Friction coefficient μ: 0.05~0.20

Applicable temperature range: -190 ° C ~ 300 ° C

Maximum sliding speed: 2.5m/s

Allow the highest PV value (dry): 3.0N/mm2.m/s

Allowable maximum PV value (oil): 40N/mm2.m/s