Wear resistance rolling roll for strip steel cold rolling and manufacturing method of wear resistance rolling roll

A strip steel and roll technology is applied to the wear-resistant roll and its preparation for cold-rolled strip, and the wear-resistant roll and its preparation field. , Low production cost, high roller strength

Inactive Publication Date: 2015-03-25
SHANDONG SHIYU BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned various cold roll materials and preparation methods thereof generally have deficiencies such as high material manufacturing cost and complicated cold roll preparation process.

Method used

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  • Wear resistance rolling roll for strip steel cold rolling and manufacturing method of wear resistance rolling roll
  • Wear resistance rolling roll for strip steel cold rolling and manufacturing method of wear resistance rolling roll

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Adopt 750 kilograms of medium-frequency induction electric furnaces to smelt the material of the present invention, at first adopt GGr15 steel scrap, Q235 low-carbon steel scrap, low-carbon ferrochromium, ferromolybdenum, ferro-niobium, ferromanganese nitride, metal aluminum and ferroboron as ingredients, then adopt electric furnace smelting, and Carry out micro-alloying treatment on the molten steel, pour wear-resistant roll sleeves on the centrifugal casting machine, and perform hot-packing compounding with the processed roll shafts to obtain wear-resistant rolls for cold rolling of strip steel. The specific preparation method is as follows:

[0034] ① Melt the wear-resistant roll sleeve 2 of the working layer of the wear-resistant roll used for strip steel cold rolling in a 750 kg medium-frequency induction furnace. Wear-resistant roller sleeve 2 adopts GGr15 scrap steel with a mass fraction of 79% (the chemical composition and mass fraction of GCr15 scrap steel are: ...

Embodiment 2

[0039] Adopt 500 kilograms of medium-frequency induction electric furnaces to smelt the material of the present invention, first adopt GGr15 steel scrap, Q235 low-carbon steel scrap, low-carbon ferrochromium, ferromolybdenum, ferro-niobium, ferromanganese nitride, metal aluminum and ferroboron as ingredients, then adopt electric furnace smelting, and Carry out micro-alloying treatment on the molten steel, pour wear-resistant roll sleeves on the centrifugal casting machine, and perform hot-packing compounding with the processed roll shafts to obtain wear-resistant rolls for cold rolling of strip steel. The specific preparation method is as follows:

[0040]① First melt the wear-resistant roll sleeve 2 of the working layer of the wear-resistant roll used for strip cold rolling in a 500 kg medium-frequency induction furnace. Wear-resistant roller sleeve 2 adopts GGr15 scrap steel with a mass fraction of 80.8% (the chemical composition and mass fraction of GCr15 scrap steel are: 1....

Embodiment 3

[0045] Adopt 1500 kilograms of medium-frequency induction furnaces to smelt the material of the present invention, first adopt GGr15 steel scrap, Q235 low-carbon steel scrap, low-carbon ferrochromium, ferromolybdenum, ferro-niobium, ferromanganese nitride, metal aluminum and ferroboron as ingredients, then adopt electric furnace to smelt, and Carry out micro-alloying treatment on the molten steel, pour wear-resistant roll sleeves on the centrifugal casting machine, and perform hot-packing compounding with the processed roll shafts to obtain wear-resistant rolls for cold rolling of strip steel. The specific preparation method is as follows:

[0046] ① First melt the wear-resistant roll sleeve 2 of the working layer of the wear-resistant roll used for strip cold rolling in a 1500 kg medium-frequency induction furnace. Wear-resistant roller sleeve 2 adopts GGr15 scrap steel with a mass fraction of 80% (the chemical composition and mass fraction of GCr15 scrap steel are: 0.99%C, 0....

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Abstract

The invention provides a wear resistance rolling roll for strip steel cold rolling and a manufacturing method of the wear resistance rolling roll, and belongs to the technical field of cold-rolling strip steel. The cold rolling roll is formed by compositing a wear resistance roll sleeve and a machined roll shaft in a hot charging mode. GGr15 waste steel, Q235 low-carbon waste steel, low-carbon chromium iron, ferro-molybdenum, ferroniobium, ferro manganese nitride, metallic aluminum and boron iron ingredients are adopted for the roll sleeve, electric-furnace smelting is conducted, microalloy treatment is conducted on molten steel, and pouring is conducted on a centrifugal casting machine. After quenching and tempering are conducted on the rolling roll, the rolling roll is high in hardness and good in toughness and wear resistance, and a good using effect is achieved.

Description

technical field [0001] The invention discloses a wear-resistant roll and a preparation method thereof, in particular to a wear-resistant roll for cold-rolling strip steel and a preparation method thereof, and belongs to the technical field of cold-rolled strip steel. Background technique [0002] In the steel rolling production process, especially in the cold-rolled strip production process, under the rolling pressure, the rolls are subjected to strong friction and wear, which consumes a lot, resulting in a huge waste of resources and a drop in the operating rate of the rolling mill. In order to improve the performance of rolls and meet the needs of the steel rolling industry, a variety of cold roll materials have been developed. Chinese invention patent CN104032117 discloses a heat treatment method for ultra-high hardness non-ferrous metal cold rolls. The steps of the heat treatment method are as follows: a. First, put the roll in a preheating furnace and preheat it at a te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B27/02B22D13/02
Inventor 戴安旺符寒光
Owner SHANDONG SHIYU BEARING
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