Production method of grinding wheel for steel tube

A manufacturing method and technology of grinding wheels, applied in the field of grinding wheels, to achieve high linear speed, reduce raw material costs, and improve compressive strength

Inactive Publication Date: 2013-02-27
JIANGSU SUBEI GRINDING WHEEL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to solve the deficiencies in the prior art for grinding steel pipes, and provide a grinding wheel for steel pipes that is easy to manufacture, low in raw material cost, high in cutting efficiency, good in heat resistance, strong in pressure resistance, and high in safety factor production method

Method used

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  • Production method of grinding wheel for steel tube
  • Production method of grinding wheel for steel tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] F12 zirconium corundum and F14 brown corundum are selected as abrasives, and the weight ratio of each raw material is: 35 parts of F12 zirconium corundum, 65 parts of F14 brown corundum, 20 parts of phenolic resin, 5 parts of pyrite, 1 part of feldspar, and cryolite 3 parts, 1 part of carbon black, and 4 parts of gypsum; accurately weigh the above-mentioned various raw materials, pour them into an S-type mixer and mix for half an hour, then discharge, sieve and set aside. The size of the grinding wheel pressed on the hydraulic press is 1-400×50×127, and the unit weight of each grinding wheel is 14.4kg. There is a raised special scraper to scrape flat, and a groove concentric with the die ring and mandrel is formed in the non-grinding area. The center distance of the groove is 240mm, and a ￠240mm steel ring is placed in the groove; the second cast For the molding material weighing 4.8 kg, repeat the above operation and place a steel ring of the same size; throw the moldi...

Embodiment 2

[0012] F10 zirconium corundum and F12 brown corundum are selected as abrasives, and the weight ratio of each raw material is: 40 parts of F12 zirconium corundum, 60 parts of F14 brown corundum, 23 parts of phenolic resin, 7 parts of pyrite, 2 parts of feldspar, cryolite 2 parts, 3 parts of carbon black, and 3 parts of gypsum; accurately weigh the above-mentioned various raw materials, pour them into a cone mixer and mix for half an hour, then discharge, sieve and set aside. The size of the grinding wheel pressed on the hydraulic press is 1-250×40×32, and the unit weight of each grinding wheel is 4.8kg. There is a raised special scraper to scrape flat, and form a groove concentric with the die ring and mandrel in the non-grinding area. The center distance of the groove is 120mm, and a ￠120mm steel ring is placed in the groove; the second cast For the molding material weighing 1.6 kg, repeat the above operation and place a steel ring of the same size; throw the molding material ...

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Abstract

The invention discloses a production method of a grinding wheel for a steel tube. The grinding wheel comprises, by weight, 100 parts of abrasives, wherein 30-50 parts of fused zirconia alumina, 50-70 parts of brown fused alumina, 17-25 parts of phenolic resin, 4-8 parts of pyrite, 1-3 parts of feldspar, 1-3 parts of cryolite, 1-3 parts of carbon black and 3-5 parts of gypsum. In a molding process, feeding is performed for three times and two wheel rims are placed in a non-grinding area; and in a hardening process, segmented heating or heat preservation is performed, the temperature is heated from a normal temperature to 160 DEG C gradually, and the hardening time is 14-16 hours. According to the method, mixed abrasives containing the fused zirconia alumina and the brown fused alumina with multi-granularity are used, the cost of the raw materials is effectively reduced, and the cutting capacity and strength of the grinding wheel are improved; on-load grinding is achieved and the grinding efficiency is improved due to placement of the two wheel rims; the hardening temperature and time are optimized and improved, and the effect is ideal; and the porosity of the grinding wheel is enlarged, the cooling performance is good, the grinding wheel is not easy to explode, and the safety factor is high.

Description

technical field [0001] The invention relates to a grinding wheel, in particular to a manufacturing method of a grinding wheel for grinding steel pipes. Background technique [0002] As small as people's daily utensils, furniture, water supply and drainage, gas supply, ventilation and heating facilities, as large as the manufacture of various agricultural machinery, the development of underground resources, guns, bullets, missiles and rockets used in national defense and aerospace, etc. Do not open the steel pipe. Steel pipes are inseparable from human life and production activities, so the grinding wheel for grinding steel pipes also plays a very important role. At present, most of the steel pipe grinding wheels used in China are ordinary resin brown corundum grinding wheels, which have poor compressive strength and heat resistance, so they can only be used for grinding without load. The cutting efficiency is low; at the same time, the grinding heat generated during grindi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D18/00B24D3/28B24D3/34
Inventor 王立新韩健王卫国王训扬黄健
Owner JIANGSU SUBEI GRINDING WHEEL FACTORY
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