2results about How to "With anti-rust function" patented technology

This utility model relates to a seamless steel pipe for ultra-low temperature alloy structures with rust-proof function, comprising a steel base pipe, an outer wall of which is provided with a corrosion-resistant layer, an outer layer of which is provided with a water-proof layer, and an outer layer of which is provided with a wear-resistant layer. This seamless steel pipe for ultra-low temperature alloy structures with rust-proof function comprises, from the inside out, a steel base pipe, a galvanized metal layer, a fiber reinforcement layer, a water-proof layer, and a wear-resistant layer. The galvanized metal layer is hot-dip galvanized and directly adheres to the surface of the steel base pipe, filling the microscopic defects of the matrix and making the pores smaller. The fiber reinforcement layer is a glass fiber braided layer, with the glass fiber braided layer interlaced at 45° and bonded to the galvanized metal layer with epoxy resin. The mesh skeleton is a nylon mesh, and the water-proof adhesive layer is a butyl rubber / polyurethane composite adhesive. The nylon mesh is embedded in the middle of the water-proof adhesive layer, which can enhance the shear deformation resistance of the water-proof layer.

The application provides a method for manufacturing alloy steel welding wire by a plating method, and belongs to the field of metal material welding materials, and comprises the following steps: analyzing the welding wire to obtain the original content of elements in the welding wire and giving a designed value of the alloy content of the welding wire to determine the alloy content in the plating layer; determining the preliminary thickness of the alloy plating layer of the welding wire; plating the plating layer on the surface of the welding wire according to the preliminary thickness; analyzing and testing to obtain the alloy content of the plating layer, comparing the alloy content of the plating layer with the designed value of the alloy content of the welding wire to obtain the adjustment coefficient of the alloy plating layer; determining the adjusted thickness of the alloy plating layer; and re-plating the original welding wire according to the adjusted thickness of the alloy plating layer. The application changes the thickness of the plating layer to increase the content of certain alloy elements of the existing welding wire, and meets the welding requirements of special materials and structures. The plating method is flexible, the thickness is easy to control, and the method has the advantages of low investment, green environmental protection, convenient component adjustment, low cost and short production cycle.