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Cemented carbide material for guide roller of finishing mill and heat treatment method of cemented carbide material

A heat treatment method and hard alloy technology, applied in the field of finish rolling mill guide wheels, can solve the problems of wear resistance of process parts, poor thermal fatigue performance, affecting the service life of rolled materials, insufficient heat resistance of guide parts, etc. Achieve the effects of improving high temperature corrosion resistance, enhancing oxidation resistance, and increasing hardness

Inactive Publication Date: 2016-11-09
HEFEI ORIENT METALLURGICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

[0026] 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.

[0027] A cemented carbide material for a guide wheel of a finishing mill, comprising the composition of each component of the cemented carbide material in terms of mass percentage: C: 1.45-1.6%, Cr: 18-20.5%, Ti: 2.8-3.2%, Mn: 0.3-0.6%, Co: 0.1-0.2%, Mo: 0.5-1.0%, Cu: 0.15-0.2%, Mg: 0.4-0.8%, Si: 0.44-0.58%, B: 0.4-0.8%, W : 0.4-0.8%, the balance is Fe and ceramic powder, and the mass percentage ratio between Fe and ceramic powder is: 10:1.

[0028] A heat treatment method for a ...

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Abstract

The invention discloses a cemented carbide material for a guide roller of a finishing mill and a heat treatment method of the cemented carbide material. The cemented carbide material is prepared from the following raw materials by weight: 1.45 to 1.6% of C, 18 to 20.5% of Cr, 2.8 to 3.2% of Ti, 0.3 to 0.6% of Mn, 0.1 to 0.2% of Co, 0.5 to 1.0% of Mo, 0.15 to 0.2%, of Cu, 0.4 to 0.8% of Mg, 0.44-0.58% of Si, 0.4-0.8% of B, 0.4-0.8% of W, and the balance of Fe and ceramic powder, wherein the weight ratio of Fe to ceramic powder is 10:1. By adding W and ceramic into a metal alloy material, the structural hardness of the cemented carbide material is improved, the abrasion resistance and the deformation resistance of the guide roller made of the cemented carbide material are further improved, and the service life of the guide pulley is prolonged.

Description

technical field [0001] The invention belongs to the technical field of finish rolling mill guide wheels, in particular to a hard alloy material for finish rolling mill guide wheels and a heat treatment method thereof. Background technique [0002] Cemented carbide is an alloy material made of hard compounds of refractory metals and bonding metals through powder metallurgy. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, which basically remain unchanged even at a temperature of 500°C , It still has a high hardness at 1000 °C. [0003] 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 ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/32C22C38/30C22C38/28C22C38/22C22C38/20C21D6/00
CPCC22C38/32C21D6/002C21D6/005C21D6/007C21D6/008C22C38/002C22C38/20C22C38/22C22C38/28C22C38/30
Inventor 张有德赵仕章吴翠凤常焰平胡峰史宣菊
Owner HEFEI ORIENT METALLURGICAL EQUIP
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