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Method for deposition modeling of guide roller based on cobalt-chromium-tungsten alloy

A technology of cobalt-chromium-tungsten alloy and accumulation forming, which is applied in the field of guide and guide wheels, can solve the problems of sticking steel, wear resistance of process parts, poor thermal fatigue performance, affecting service life and quality of rolled materials, etc., and achieves improved corrosion resistance The effect of performance and wear resistance

Active Publication Date: 2016-11-09
HEFEI ORIENT METALLURGICAL EQUIP
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Problems solved by technology

Many guide parts used have insufficient heat resistance, such as steel sticking, and some process parts have poor wear resistance and thermal fatigue performance, which affects the service life and quality of rolled products

Method used

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] A method for forming a guide wheel based on cobalt-chromium-tungsten alloy accumulation, comprising the following steps:

[0025] Step 1, raw material configuration: the guide wheel adopts 70-75% Cr12MoV cold-work die steel scrap, 5-9% 1Cr18Ni9Ti, and the balance is Q235 scrap steel;

[0026] Step 2, smelting: Mix and melt Cr12MoV cold work die steel scrap, 1Cr18Ni9Ti, and Q235 scrap steel in step 1 in an intermediate frequency induction furnace; when the temperature of mol...

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Abstract

The invention discloses a method for deposition modeling of a guide roller based on a cobalt-chromium-tungsten alloy. The method comprises the following steps: step I: raw material preparation: taking the following materials by weight: 70 to 75% of Cr12MoV cold work die steel waste, 5 to 9% of 1Cr18Ni9Ti, and the balance of Q235 steel scrap; step II, smelting; step III, casting and rough machining; step IV, preheating treatment; step V, preparation of a deposition modeling material; step VI, deposition modeling; and step VII, nitriding treatment. The guide roller made of Cr12MoV cold work die steel waste, 1Cr18Ni9Ti, and the balance of Q235 steel scrap has structural strength and performance as those of a common hard alloy; and by forming a cladding layer on the surface of the guide wheel in a shielded metal arc welding manner, the guide wheel made of the cobalt-chromium-tungsten alloy is greatly higher in corrosion resistance and wear resistance.

Description

technical field [0001] The invention belongs to the technical field of guide and guide wheels, in particular to a method for forming guide and guide wheels based on cobalt-chromium-tungsten alloy accumulation. Background technique [0002] The guide wheel is an important spare part that consumes a lot in the hot-rolled bar production line, and is a key component in the rolling guide assembly, which affects the technical and economic indicators such as the operating rate of the rolling mill. Many guide parts used have insufficient heat resistance, such as steel sticking, and some process parts have poor wear resistance and thermal fatigue performance, which affects the service life and quality of rolled products. [0003] The physical essence of hardness wear is a special form of fracture process, which occurs on the surface and subsurface of the worn parts. When considering the hardness value, it cannot simply be considered that the higher the hardness, the better the wear ...

Claims

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Application Information

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IPC IPC(8): C22C33/04C23C8/00B22C9/28B23K9/04
CPCB22C9/28B23K9/046C22C33/006C22C33/04C23C8/00
Inventor 赵家柱完永云吴迪梁海峰王磊王孟祥
Owner HEFEI ORIENT METALLURGICAL EQUIP
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