33results about How to "Retain corrosion resistance" patented technology

The invention relates to a ternary polymerization polytetrafluoroethylene resin which is formed by copolymerizing tetrafluoroethylene, fluorine-containing olefin and perfluor (alkyl vinyl ether) and also relates to a preparation method and concentrated dispersion liquid of the ternary polymerization polytetrafluoroethylene resin. On the basis that the original characteristics of the polytetrafluoroethylene resin are kept, the provided ternary polymerization polytetrafluoroethylene resin can be processed to form products with various specifications and shapes through melting, so that the application range of the polytetrafluoroethylene resin is widened; the provided concentrated dispersion liquid of the polytetrafluoroethylene can fully cover the surface of a base material during film coating, and the light-transmitting performance and the glossiness of the coated film are improved; and by the provided preparation method, the production cost is reduced, environment pollution is reduced, the reaction conditions are mild, and high safety can be achieved.

The invention provides a polyether-ether-ketone cable material. The polyether-ether-ketone cable material is characterized in that a raw material formula comprises the following materials in parts by weight: 50-70 parts of polyether-ether-ketone, 1-5 parts of a lubricating agent, 0.1-1 part of a nucleating agent, 3-8 parts of a compatilizer and 25-40 parts of a hardness conditioning agent. A preparation method of the polyether-ether-ketone cable material is characterized by comprising the following steps of weighting the materials according to the mass part of the materials in the raw material formula, mixing and stirring all the materials for 15-30 minutes in a high-speed mixing machine, then discharging, pelleting through a double-screw extruder at the process temperature of 220-380 DEG C, and packaging. The polyether-ether-ketone cable material provided by the invention has the advantages that the machining property of the polyether-ether-ketone product is improved, the extrusion molding is facilitated, the hardness of the material is reduced, the polyether-ether-ketone is suitable for being applied to cable industries, the excellent property of polyether-ether-ketone material can also be retained, and the polyether-ether-ketone cable material is flame-retardant, resists high temperature, low temperature, corrosion, oil and abrasion and can be widely applied to automobile cables, locomotive cables, nuclear power and the like with strict operating requirements.

The antiwear stainless cored high chromium wire has coat of low carbon steel and powder core comprising high carbon ferrochromium 36-42 wt%, micro carbon ferrochromium 26-32 wt%, metal Cr powder 15-17 wt%, ferromolybdenum 2-4 wt%, ferrovanadium 3-5 wt%, tungsten carbide 4-6 wt%, ferroboron 5-8 wt%, nickel powder 2-4 wt%, niobium powder 2-5 wt% and RE silicon 2-3 wt%, and with one welding wire filling amount of 0.49-0.52. The present invention results in raised comprehensive welding performance and raised welding quality, high anticossive performance, high anticracking performance and average fused-on metal hardness of HRC54, and may be applied widely in build-up welding field requiring high antiwear, anticorrosive and anticracking performance.