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Method for producing high-strength steel grit by adopting waste tire steel wires

A waste tire and steel wire technology, applied in the field of metal abrasive production, can solve the problems of damage to workers' health, high manufacturing cost of steel wire cutting, and high consumption of fragility, so as to achieve wide application range, simple and efficient production process, and low manufacturing cost Effect

Inactive Publication Date: 2016-08-24
TIANJIN XINCHAO AST STEEL & ABRASIVE FOUNDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The angular sand structure is loose, the material is brittle, and it is fragile during use, which consumes a lot of money and costs high
The production cost of steel wire cutting is high and the processing process is complicated. The processing cost per ton is more than 1,500 yuan, which is not suitable for large-scale production and will damage the health of workers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A method for producing high-strength steel sand by using waste tire steel wire, comprising the following steps:

[0013] (1) Heat treatment: Bundle the waste tire steel wires into small bundles of 15-20kg, then put the steel wire bundles into a straight-type heating furnace, heat them to 600°C, and then immerse them in water to cool them so that they are completely quenched and hardened. Reach above 64HRC; then perform tempering treatment, the tempering conditions are: heating to 200°C, constant temperature for 20 minutes, heat preservation for 24 hours, and cooling with water;

[0014] (2) Screening: crush the steel wire with an air hammer to obtain semi-finished steel sand, use a vibrating screen to screen the semi-finished steel sand into various diameters, and use a circular separator to divide the semi-finished steel sand into various shapes to obtain finished steel sand.

Embodiment 2

[0016] A method for producing high-strength steel sand by using waste tire steel wire, comprising the following steps:

[0017] (1) Heat treatment: Bundle the waste tire steel wires into small bundles of 15-20kg, then put the steel wire bundles into a straight-tube heating furnace, heat them to 800°C and quickly immerse them in water to cool them down, making them in a state of complete quenching and making them hard Reach above 64HRC; then perform tempering treatment, the tempering conditions are: heating to 400 ° C, constant temperature for 15 minutes, holding temperature for 6 hours, cooling with water;

[0018] (2) Screening: crush the steel wire with an air hammer to obtain semi-finished steel sand, use a vibrating screen to screen the semi-finished steel sand into various diameters, and use a circular separator to divide the semi-finished steel sand into various shapes to obtain finished steel sand.

Embodiment 3

[0020] A method for producing high-strength steel sand by using waste tire steel wire, comprising the following steps:

[0021] (1) Heat treatment: Bundle the waste tire steel wires into small bundles of 15-20kg, then put the steel wire bundles into a straight-type heating furnace, heat them to 700°C, and then immerse them in water to cool them so that they are completely quenched and hardened. Reach above 64HRC; then perform tempering treatment, the tempering conditions are: heating to 300 ° C, constant temperature for 20 minutes, heat preservation for 18 hours, and cooling with water;

[0022] (2) Screening: crush the steel wire with an air hammer to obtain semi-finished steel sand, use a vibrating screen to screen the semi-finished steel sand into various diameters, and use a circular separator to divide the semi-finished steel sand into various shapes to obtain finished steel sand.

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PUM

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Abstract

The present invention is a method for producing high-strength steel grit by using waste tire steel wires, comprising the following steps: (1), heat treatment: bundling waste tire steel wires into small bundles of about 15‑20 kg, and then putting the steel wire bundles into straight tube heating In the furnace, after heating to 600-800°C, the express delivery is immersed in water to cool; then tempering treatment, the tempering conditions are: heating to 200-400°C, constant temperature for 15-20 minutes, holding temperature for 6-24 hours, and cooling; (2) , Screening: use an air hammer to crush the steel wire to obtain semi-finished steel sand, sieve the semi-finished steel sand into various diameters with a vibrating screen, and divide the semi-finished steel sand into various shapes with a circle selector to obtain finished steel sand. The process is simple and efficient, and the manufacturing cost is low. The processing cost per ton is about 600 yuan, and the use range is wide. The high-strength steel wire after heat treatment can successfully complete the surface sandblasting of high-strength steel plates in different fields.

Description

technical field [0001] The invention relates to the technical field of metal abrasive production, in particular to a method for producing high-strength steel grit by using waste tire steel wire. Background technique [0002] There are two traditional manufacturing methods of steel grit, one is cut and broken by steel shot (commonly known as angular sand), and the other is cut by steel wire (commonly known as steel wire cut). Angular sand has a loose structure, high material brittleness, and high cost due to fragility and consumption during use. The manufacturing cost of steel wire cutting is high, the processing process is complicated, and the processing cost per ton is more than 1,500 yuan, which is not suitable for large-scale production and damages the health of workers. Contents of the invention [0003] The invention aims to solve the deficiencies of the prior art, and provides a method for producing high-strength steel sand by using waste tire steel wire, which is l...

Claims

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Application Information

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IPC IPC(8): B22F9/04
CPCB22F9/04B22F2009/048
Inventor 王杜
Owner TIANJIN XINCHAO AST STEEL & ABRASIVE FOUNDRY