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Manufacturing method for spheroidized abrasives

A production method and abrasive technology, which are applied in abrasives, manufacturing tools, metal processing equipment, etc., can solve the problem that the surface finish of castings does not meet the requirements, and achieve the effects of being unbreakable, uniform in particle size, and simple in production process.

Inactive Publication Date: 2017-02-15
TIANJIN XINCHAO AST STEEL & ABRASIVE FOUNDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some factories now use steel wire to cut into sections, which solves the broken problem, but the surface finish of castings still does not meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for making a round abrasive material, comprising the following steps:

[0016] (1), the steel wire is cut into cylindrical steel wire sections equal to its diameter by a cutting machine;

[0017] (2), in the rounding machine, the cylindrical steel wire cut sections are repeatedly thrown and ground for 20 minutes, and then put into the roundness separator for roundness sorting, and the bent and beveled sections are removed;

[0018] (3) Put the steel wire cut sections screened by the round selector into the round throwing machine for projection and grinding until they are all round to form steel shots;

[0019] (4), above-mentioned steel shot is screened in the screen cloth that is less than steel wire diameter 0.2mm, removes bead, slag chip and throws round steel shot;

[0020] (5) Anti-rust treatment of the round steel shot: Soak the round steel shot in an aqueous solution containing 1% sodium nitrite and 1% baking soda for 5 minutes, dry it naturally or in t...

Embodiment 2

[0022] A method for making a round abrasive material, comprising the following steps:

[0023] (1), the steel wire is cut into cylindrical steel wire sections equal to its diameter by a cutting machine;

[0024] (2) After repeatedly throwing and grinding the cylindrical steel wire cut sections in the rounding machine for 40 minutes, put them into the roundness separator for roundness sorting, and remove the bent and beveled sections;

[0025] (3) Put the steel wire cut sections screened by the round selector into the round throwing machine for projection and grinding until they are all round to form steel shots;

[0026] (4), above-mentioned steel shot is screened in the screen cloth that is less than steel wire diameter 0.2mm, removes bead, slag chip and throws round steel shot;

[0027] (5) Anti-rust treatment of the round steel shot: Soak the round steel shot in an aqueous solution containing 2% sodium nitrite and 0.5% baking soda for 10 minutes, dry it naturally or in the...

Embodiment 3

[0029] A method for making a round abrasive material, comprising the following steps:

[0030] (1), the steel wire is cut into cylindrical steel wire sections equal to its diameter by a cutting machine;

[0031] (2) In the rounding machine, the cylindrical steel wire cut sections are repeatedly thrown and ground for 30 minutes, and then put into the roundness separator for roundness sorting, and the bent and beveled sections are removed;

[0032] (3) Put the steel wire cut sections screened by the round selector into the round throwing machine for projection and grinding until they are all round to form steel shots;

[0033] (4), above-mentioned steel shot is sieved in the sieve cloth that is less than steel wire diameter 0.2mm, removes bead, slag chip and throws round steel shot;

[0034] (5) Anti-rust treatment of the round steel shot: Soak the round steel shot in an aqueous solution containing 2% sodium nitrite and 0.5% baking soda for 10 minutes, dry it naturally or in th...

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Abstract

The invention provides a manufacturing method for spheroidized abrasives. The manufacturing method comprises the following operating steps that (1) a steel wire is cut into cylindrical steel wire cut segments of which the diameter is equal to that of the steel wire through a segment cutting machine; (2) after being repeatedly cast and ground for 20-40 minutes in a spheroidizing machine, the cylindrical steel wire cut segments are put into a roundness sorting device to be subjected to roundness sorting, and the bent segments and the oblique angle segments are removed; (3) the steel wire cut segments screened by the roundness sorting device are continuously put into the spheroidizing machine to be cast and ground till all the steel wire cut segments are rounded, and steel shots are formed; (4) the steel shots are screened in a screen net of which the diameter is 0.2 mm smaller than that of the steel wire, globules and slag scraps are removed, and spheroidized steel shots are obtained; and (5) the spheroidized steel shots are subjected to rust-proof treatment, packaged and warehoused. According to the manufacturing method for the spheroidized abrasives, the manufacturing process is simple, convenient and easy, and the manufactured metal abrasives are smooth in corner angle, uniform in particle size and not prone to being broken.

Description

technical field [0001] The invention relates to the technical field of metal abrasives, in particular to a method for making round abrasives. Background technique [0002] The cleaning and derusting of the casting surface is the main production link of each casting factory, especially the export castings, investment castings, automobile engine castings, and low-sand production line castings all emphasize the cleaning quality of the casting surface, and the use of round abrasives can solve the problem very well. Previously there were chipping and finish issues. The traditional metal abrasives for surface cleaning of castings are mainly cast steel shot, and the cast steel shot is severely broken during use, and the cast steel shot with a small diameter will soon become powder and be eliminated, failing to achieve the purpose of cleaning. The use of cast steel shot with a large diameter will quickly break into pieces, increasing the roughness of the casting surface. Some fact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C11/00B24B1/00
CPCB24C11/00B24B1/00
Inventor 王杜
Owner TIANJIN XINCHAO AST STEEL & ABRASIVE FOUNDRY
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