Water-cooling fast-condensing method and device for preparing powder-mixed atomized water-cooling fast-condensing magnetic abrasives

Abstract

The invention provides a water-cooling fast-condensing device of preparation equipment for free-falling powder-mixed atomized water-cooling fast-condensing magnetic abrasives. The water-cooling fast-condensing device comprises a water drain valve (1), a filter screen (2), magnetic abrasives (3), a filter-pressing air valve (4), a gate valve (5), a cold water valve (6), a water level gauge (35), an atomizing water-cooling chamber (36), cooling water (37), an atomizing water-cooling chamber shell (38), a magnetic abrasive tank (39), filtering water (40) and an atomizing cavity exhaust pipe (46). According to the device, the flying distance of molten-state liquid drops containing hard abrasives is controlled by adjusting the level of the cooling water, so that condensing time is controlled, and the distribution depth of hard abrasive particles in a magnetic abrasive metal base body is controlled; the hard abrasive particles are distributed in the shallow surface layer of the magnetic abrasive metal base body and tightly combined with the metal base body, so that the high-performance magnetic abrasives are obtained. The invention also provides a method for preparing the free-falling powder-mixed atomized water-cooling fast-condensing magnetic abrasives. The reliable device is provided for controlling the depth distribution of the hard abrasives in the magnetic abrasive metal base body and preparing the high-performance magnetic abrasives.

Description

technical field [0001] The invention provides a water-cooling and quick-setting method and a water-cooling and quick-setting device for preparing powder-mixed gas atomized water-cooling and quick-setting magnetic abrasives, which belong to the technical field of magnetic particle abrasive material preparation. Background technique [0002] Due to the advantages of magnetic particle grinding and finishing technology: flexibility, self-adaptability, self-sharpening, controllability, small temperature rise, no tool wear compensation, no modification, high efficiency, etc., at the same time, magnetic particle grinding The finishing process also avoids the complex requirements for the grinding head structure, can realize the grinding and finishing process of complex curved surfaces and solve automation problems, and can reduce the cost of mold manufacturing, which has caused extensive research and product development in the world, and has been It has been applied in many occasion...

AI Technical Summary

Problems solved by technology

[0003] At present, the main problems of magnetic grinding and finishing are the low service life of magnetic abrasives, poor metal cutting ability, difficult preparation and high cost.

For this reason, the inventors invented the "preparation method of gas atomization fast setting magnetic abrasive" (ZL201010206408.6), "gas atomization fast setting magnetic abrasive preparation equipment" (ZL201110156753.8), "gas atomization fast setting method preparation Structure and Morphology Control of Magnetic Abrasives" (ZL201110156741.5), and achieved good results in practice, but there are still some key technical problems that affect the quality of magnetic abrasive preparation, such as: due to the failure to solve the problem of molten magnetic abrasive droplets Condensation speed control problem of the prepared magnetic abrasive, the depth distribution of the hard abrasive in the metal matrix has not been stable enough (mainly because the distribution is shallow and the combination with the metal matrix is ​​not firm, resulting in low grinding performance and shortened service life), which directly affects The grinding ability of magnetic abrasives has a high scrap rate

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