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Grinding wheel and use thereof for grinding hard-face roller

A grinding wheel and grinding technology, applied in the field of grinding wheels, can solve the problems of easy to produce wear marks on the surface of the roll, poor roll shape accuracy, small thickness of wear debris, etc., and achieve the effects of improving the environment, reducing the amount of sand and mud, and prolonging the service life.

Inactive Publication Date: 2009-07-15
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this traditional grinding method is used to grind high-speed steel rolls, there are defects such as small thickness of grinding debris per lead, long grinding time, high consumption of grinding wheels, easy generation of grinding marks on the surface of the roll, and deterioration of roll shape accuracy. bad question

Method used

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  • Grinding wheel and use thereof for grinding hard-face roller
  • Grinding wheel and use thereof for grinding hard-face roller
  • Grinding wheel and use thereof for grinding hard-face roller

Examples

Experimental program
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Embodiment

[0076] 1. Production of grinding wheel:

[0077] ●Composition of grinding wheel: 30% aluminum oxide, 30% single crystal corundum, 40% silicon carbide.

[0078] ●The process of making grinding wheel:

[0079] Raw material preparation: select and weigh materials according to the weight ratio of alumina, single crystal corundum and silicon carbide. The hardness of all abrasives is neutral hardness, the particle size is 36 grains / hour, and the diameter is 550 microns. (See grinding wheel standard, ANSI (American National Standards Institute) B7.1)

[0080] Grinding wheel forming: After the three kinds of abrasives are added to the resin bond and fully stirred and mixed, they are pressed into shape by a press, and then the grinding wheel is cured after drying.

[0081] Machining: After the grinding wheel blank is ground, the geometric dimensions are processed.

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Abstract

The invention relates to a grinding wheel which is characterized in that the grinding wheel has the following components: 30-35% of alumina, 30-35% of single alundum and 30-40% of carborundum, and the ratio between the alumina and the single alundum is 1:1. After being trimmed, the grinding wheel has two symmetric sections of width outer margins formed by a first sine curve and a second sine curve smoothly connected with the first sine curve. When the grinding wheel is used for grinding a high-speed steel roller, the rotation speed and the Z-axis speed of the grinding wheel can be reduced, however, the amount of feed is increased, and the grinding time is reduced. The grinding wheel has prolonged service life and reduces the time for the grinding wheel replacement and the labor intensity of grinder workers. The amount of sand and mud is reduced during the grinding so that the environment around a grinder can be improved; and the cost performance of the grinding wheel is remarkably improved.

Description

technical field [0001] The invention relates to a grinding wheel, in particular to a grinding wheel for grinding hard-faced rolls and its application in grinding hard-faced rolls. Background technique [0002] Generally, semi-steel and high-chromium steel rolls are used for the horizontal rolls of domestic hot-rolled plate and strip steel roughing stands. The grinding parameters of advanced grinding wheels and grinding machines cannot adapt to the grinding process of high-speed steel rolls. [0003] The typical high-chromium steel and high-speed steel rolls are characterized by the composition of the wear resistance in the following table 1 [0004] Table 1 [0005] [0006] The high-hardness structure of high-speed steel rolls determines that the hardness, compressive strength and friction coefficient of the roll body are higher than those of high-chromium steel rolls. Therefore, high-speed steel rolls have excellent rolling characteristics when producing stainless ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14B24D3/04B24D7/18
Inventor 邵以诺陆炳鸿罗晶陈瑜陈志杨会海
Owner BAOSHAN IRON & STEEL CO LTD
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