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Method for preparing vitrified grinding wheels with metal matrixes for grinding stainless steel and titanium alloys

A ceramic grinding wheel, stainless steel technology, applied in metal processing equipment, grinding/polishing equipment, grinding devices, etc., can solve the problems of high labor intensity, low grinding efficiency, easy pollution of the surrounding environment, etc., to improve the working environment , the effect of reducing labor intensity

Active Publication Date: 2013-04-24
郑州新安华砂轮有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When grinding with ordinary resin grinding wheels, the grinding efficiency is low, the wear is high, time-consuming and labor-intensive, the labor intensity of the workers is high, and it is easy to cause pollution to the surrounding environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of a vitrified grinding wheel for grinding stainless steel and titanium alloy with a metal base, comprising the steps of:

[0025] (1) The composition of raw materials: in terms of mass percentage, 70% of zirconium corundum abrasive, 30% of binder; the composition of binder is: clay powder 30%, feldspar powder 30%, boron glass powder 40%;

[0026] (2) Mixing of raw materials: a. Uniformly wet the abrasive described in step (1) with 12%wt sodium silicate solution to obtain mixture A; b. Add mixture A to the countercurrent mixer under stirring; c. Stir Next, add the binder described in step (1) to mixture A, and stop stirring after stirring for 30 minutes to obtain mixture B; d. Pass mixture B through 24# sieve;

[0027] (3) Forming stage: the sieved mixture B is molded, formed, and demolded to obtain an embryo body grinding wheel, and the forming adopts an isostatic pressing process with a pressure of 20 MPa;

[0028] (4) Drying stage: Place the e...

Embodiment 2

[0032] The same part of this example and Example 1 will not be repeated, the difference lies in the composition of raw materials in step (1): in terms of mass percentage, 60% of zirconium corundum abrasive, 40% of binder; the composition of binder is: clay Powder 35%, feldspar powder 20%, boron glass powder 45%.

Embodiment 3

[0034] The same part of this example and Example 1 will not be repeated, the difference lies in the composition of raw materials in step (1): in terms of mass percentage, 85% of zirconium corundum abrasive, 15% of binder; the composition of binder is: clay Powder 25%, feldspar powder 15%, boron glass powder 60%.

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PUM

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Abstract

The invention relates to a method for preparing vitrified grinding wheels with metal matrixes for grinding stainless steel and titanium alloys. The method comprises subjecting raw materials to mixing, molding, drying, roasting and combining. The raw materials comprise, by mass, 60% to 85% of abrasives and 15% to 40% of binding agents, wherein the binding agents is composed of 15% to 35% of clay powder, 15% to 35% of feldspar powder and 35% to 60% of borax glass. The roasting process is performed in a weakly reducing atmosphere. The grinding efficiency of the vitrified grinding wheels produced by the method is 10 to 100 times of that of resin grinding wheels, and abrasions are only 0.01 of those of the resin grinding wheels; the vitrified grinding wheels can be used safely at a linear speed of 80 m / s; and simultaneously, the worker labor intensity is reduced, and the working environment is improved.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a method for preparing a metal-based ceramic grinding wheel for grinding stainless steel and titanium alloys. Background technique [0002] Stainless steel has high toughness, high thermal strength, and high cutting resistance. Under the action of high temperature and high pressure, abrasive debris is easy to adhere to ordinary grinding wheels, filling the gaps between abrasive grains, and the surface of the workpiece is prone to burns and annealing. The linear expansion coefficient of stainless steel is large, and it is easy to deform under the action of grinding heat, and the size is difficult to control. [0003] Titanium alloy materials have excellent physical and mechanical properties: small specific gravity, high specific strength, high temperature resistance, corrosion resistance, non-magnetic properties, high elastic modulus, etc. Because of its excellent...

Claims

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Application Information

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IPC IPC(8): B24D3/04B24D18/00
Inventor 王跃东
Owner 郑州新安华砂轮有限公司
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