Preparation method of nickle-based high temperature and corrosion resistant welding wire

Abstract

The invention belongs to the field of welding material and particularly relates to a preparation method of a nickle-based high temperature and corrosion resistant welding wire. The preparation methodcomprises the following steps: 1, preparing the raw materials according to the proportion, wherein chromium and partial nickle are prepared in the form of nickel-chromium intermediate alloy, adding other raw materials except titanium, chromium and partial nickle into a vacuum induction furnace, carrying out bottom argon blowing, and after the raw materials are completely melted, starting to carryout top blowing oxygen; 2, adding the nickel-chromium intermediate alloy 5-10 minutes after top blowing oxygen to melt and disperse the nickel-chromium intermediate alloy, stops blowing oxygen when the carbon content is reduced to less than 0.03%, and carrying out top blowing argon and bottom blowing argon simultaneously; 3, keeping bottom blowing argon, adding ferrosilicon and aluminium block insteel ladle for deoxidation, and then adding lime and fluorite for slagging and desulfuration; 4, casting melted liquid into alloy ingot, and annealing the alloy ingot; 5, forging the annealed alloy ingot at 1100-1200 DEG C into alloy billets, and rolling the alloy billets into wire rods; 6, carrying out acid pickling and coping to remove oxide skins and corrosion substance on the surfaces of thewire rods, annealing the wire rods, and drawing the wire rods into a welding wire; and annealing the welding wire.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to a preparation method of a nickel-based high-temperature-resistant and corrosion-resistant welding wire. Background technique [0002] The development of China's green economy is inseparable from energy conservation, emission reduction and environmental governance. At present, industrial waste, urban waste, rural waste and various wastes mixed with toxic and harmful substances are mostly treated by incineration, and the waste is harmless. At the same time, the heat energy generated by combustion can also be utilized. In the incineration process, the incinerator is the key equipment. It is an environmental protection equipment that incinerates waste gas, waste liquid, solid waste fuel, medical waste, domestic waste, animal carcasses, etc. at high temperature to reduce or reduce the quantification. At the same time, part of the heat energy of the incineration ...

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Problems solved by technology

[0004] In order to solve the problem of high corrosion rate of the existing welding wire at high temperature, the invention discloses a preparation method of a nickel-based high-temperature resistant and corrosion-resistant welding wire. The prepared welding wire has a lower corrosion rate under high temperature conditions and has good high temperature resistance Corrosion resistance

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