Novel aluminium and zinc corrosion resistance nichrome and furnace roller manufacturing method by adopting same

Abstract

The invention discloses novel aluminium and zinc corrosion resistance nichrome and a furnace roller manufacturing method by adopting the nichrome. The novel aluminium and zinc corrosion resistance nichrome comprises the following chemical constituents in weight percent: 0.1% to 0.2% of C, 1% to 1.2% of Si, 0.8% to 1.2% of Mn, 22% to 23% of Cr, 10.5% to 12.5% of Ni, smaller than or equal to 0.03% of P, smaller than or equal to 0.02% of S, 0.4% to 0.5% of Nb, 0.8% to 1.2% of Mo, 8.5% to 10.5% of W, 0.08% to 0.12% of Re, and the balance of Fe. The nichrome is long in service life, the procurement cost of a manufacturer using sink rolls can be reduced, and frequent replacement can be avoided at the same time, besides, the labor intensity is lowered, and the production efficiency is improved; the furnace roller is manufactured in a centrifugal casting method, under the action of a centrifugal force, tungsten alloy of a centrifugal cast sink roll is distributed in a grading manner from the inside out in content, and the surface layer is rich in tungsten, so that the surface rigidity, the wearing resistance and the corrosion resistance of the furnace roller can be improved.

Description

[0001] technical field [0002] The invention belongs to the technical field of alloy industry, and in particular relates to a novel nickel-chromium alloy resistant to aluminum and zinc corrosion and a method for producing furnace rolls by using the alloy. [0003] Background technique [0004] In the hot-dip galvanizing production line, the immersed parts in the zinc pot, such as sinking rolls, stabilizing rolls, support arms, sleeve shafts, etc., play a very important role. These parts will directly affect the quality and production efficiency of galvanized sheets. At present, the furnace rolls used in the continuous galvanizing production line are generally made of 316L stainless steel. The furnace rolls made of 316L stainless steel work in the continuous galvanizing production line. Generally, they have to be repaired in about 15 days before they can be used. Frequent replacement affects production efficiency. , Increase labor intensity. [0005] Contents of the inve...

AI Technical Summary

Problems solved by technology

At present, the furnace rolls used in the continuous galvanizing production line are generally made of 316L stainless steel. The furnace rolls made of 316L stainless steel work in the continuous galvanizing production line. Generally, they have to be repaired in about 15 days before they can be used. Frequent replacement affects production efficiency. , increase labor intensity