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Integrated production process for abrasion-resistant steel ball

A production process and wear-resistant steel technology, which is applied in the field of wear-resistant steel ball or steel bar production process, can solve the problems of large investment in plant equipment, low quality of steel bar, and poor quality of steel ball, so as to reduce equipment and plant investment , improve product quality, improve the effect of segregation and shrinkage cavity

Inactive Publication Date: 2018-09-11
EAST CHINA BRANCH CENT IRON & STEEL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Technical problems to be solved: This application mainly solves the technical problems of poor quality of steel balls in the prior art, high energy consumption, long process, low quality of steel bars, and large investment in workshops and equipment; Solve the quality problem of steel balls by rolling with liquid core, solve the problem of high energy consumption through induction heating of cast slabs and hot rolling, and solve the problems of long process and high consumption through the integrated design of the production line. By adopting this process, It can reduce plant and equipment investment, reduce energy consumption, and at the same time, help improve the technical problems of wear-resistant ball steel bars and wear-resistant balls

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An integrated production process for wear-resistant steel balls, comprising the following steps:

[0031] Step 1: Put the high carbon steel into the refining furnace after smelting the alloy in the induction furnace, electric arc furnace or converter to get the billet. , The cast slab is rolled with a liquid core under the continuous casting light pressure, and the continuous casting tundish induction heating device is installed in the continuous casting machine to prevent the temperature of the molten steel from dropping, and ensure the continuous casting and product quality.

[0032] The second step, billet induction heating: after continuous casting, the billet is soaked by an induction heating device, and then directly enters the ball mill to roll wear-resistant steel balls, and is equipped with an induction heating device before entering the ball mill. The initial temperature of the induction heating of the bar before ball rolling reaches 850°C, which reduces energ...

Embodiment 2

[0038] An integrated production process for wear-resistant steel balls, comprising the following steps:

[0039] Step 1: Put the high carbon steel into the refining furnace after smelting the alloy in the induction furnace, electric arc furnace or converter to get the billet. , The cast slab is rolled with a liquid core under the continuous casting light pressure, and the continuous casting tundish induction heating device is installed in the continuous casting machine to prevent the temperature of the molten steel from dropping, and ensure the continuous casting and product quality.

[0040]The second step, billet induction heating: after continuous casting, the billet is soaked by an induction heating device, and then directly enters the ball mill to roll wear-resistant steel balls, and is equipped with an induction heating device before entering the ball mill. The initial temperature of the induction heating of the bar before ball rolling reaches 850°C, which reduces energy...

Embodiment 3

[0046] An integrated production process for wear-resistant steel balls, comprising the following steps:

[0047] Step 1: Put the high carbon steel into the refining furnace after smelting the alloy in the induction furnace, electric arc furnace or converter to get the cast slab. , The cast slab is rolled with a liquid core under the continuous casting light pressure, and the continuous casting tundish induction heating device is installed in the continuous casting machine to prevent the temperature of the molten steel from dropping, and ensure the continuous casting and product quality.

[0048] The second step, billet induction heating: after continuous casting, the billet is soaked by an induction heating device, and then directly enters the ball mill to roll wear-resistant steel balls, and is equipped with an induction heating device before entering the ball mill. The initial temperature of the induction heating of the bar before ball rolling reaches 850°C, which reduces en...

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PUM

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Abstract

The invention provides an integrated production process for an abrasion-resistant steel ball. As for continuous cast rolling, continuous casting and a slight reduction technology are integrated into one, and liquid core rolling is implemented. A continuous casting tundish has an induction heating function so as to ensure the stability of the molten steel temperature and the stability of the steelball interior quality. According to the integrated production process for the abrasion-resistant steel ball, through integrated design, integration of the process procedures, from composition design to smelting, continuous casting and liquid core rolling, from a steel billet being directly subjected to hot charging for steel ball rolling to steel ball heat treatment, of production of the abrasion-resistant steel ball and equipment is achieved. Due to the fact that a casting blank adopts sensing heating and soaking, the investment of a large-scale heating furnace for casting blank heating is omitted; cast rolling integration adopts rolling of the casting blank with a liquid core, the interior quality level of the steel ball is effectively improved, restraint of the abrasion-resistant steelball to the rolling ratio can be broken through, and the number of rolling passes is decreased; and through integration of a hot-rolled abrasion-resistant steel bar and a rolled ball, energy consumption required for reheating of bars is reduced. The integrated production process for the abrasion-resistant steel ball has the advantages of high rhythm, high efficiency, high quality, high benefits and the like.

Description

technical field [0001] The invention relates to the field of production technology of wear-resistant steel balls or steel rods, in particular to an integrated production technology of wear-resistant steel balls. Background technique [0002] At present, the production of wear-resistant steel balls or steel rods adopts a split process flow, that is, smelting and continuous casting are integrated to produce continuous casting billets for wear-resistant steel balls, and the continuous casting billets are sent to the rolling heating furnace after slow cooling or direct heating The wear-resistant steel bar is heated and rolled for slow cooling, and then the slow-cooled wear-resistant steel rolled material enters the ball rolling machine for steel ball rolling after induction heating, and adopts on-line or off-line heat treatment according to the actual situation. Billet production, bar production and wear-resistant steel ball production are organized separately. There are three ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/12C21D9/36C21D1/84B21B1/46
CPCB22D11/1206B21B1/46C21D1/84C21D9/36
Inventor 王启丞于桂玲孙大文王忠英王丽丽
Owner EAST CHINA BRANCH CENT IRON & STEEL RES INST