Double-row shot blasting method

A technology of shot blasting machine and steel shot, which is applied in the direction of grinding/polishing equipment, used abrasive processing device, explosion generation device, etc., which can solve the problems of low production efficiency, large consumption of shot material, and large surplus space, etc. Achieve the effect of reducing production cost and improving production efficiency

Inactive Publication Date: 2020-04-14
NANJING IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The inner width of the shot blasting machine in the heat treatment workshop of the wide and thick plate factory is 4700mm, and the widest steel plate width allowed for shot blasting is 4700mm. In the actual production process, steel plates with a width of 1800-2250mm are often shot blasted, and there is more room in the width direction of the shot blasting. The production of this kind of steel plate will lead to low production efficiency and large consumption of shot, but the market and order needs have to be produced

Method used

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Embodiment Construction

[0016] The technical scheme of the present invention will be described in further detail below.

[0017] When producing heat-treated steel plates with a width of less than 2250mm and a length of less than 6000mm, the rolled steel cannot be rolled according to the double scale if the billet is not allowed. The width of the steel plate is doubled after being doubled, and the inner width of the shot blasting machine can be fully utilized during shot blasting. The present invention proposes a method of using two steel plates side by side side by side for double-row shot blasting. The method of shot blasting the two steel plates side by side (horizontal side by side: splicing two steel plates together in the length direction and placing them side by side) includes the following steps :

[0018] Step 1. Place the two steel plates side by side on the ground horizontally (such as image 3 As shown, the two rectangles represent two steel plates placed side by side in the horizontal d...

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Abstract

The invention discloses a double-row shot blasting method. Two plates are adopted for transverse parallel shot blasting, so the problem of incomplete edge shot blasting is solved, the production efficiency is increased, the production cost is reduced, the production time is reduced by 50% in the same tonnage, the high-yield capacity of a heat treatment furnace is ensured, and the productivity is increased by 50% in comparison with the prior art.

Description

technical field [0001] The invention relates to an operation method for heat-treating a shot blasting machine to increase the shot blasting output and reduce the shot blasting cost. Background technique [0002] The inner width of the shot blasting machine in the heat treatment workshop of the wide and thick plate factory is 4700mm, and the widest steel plate width allowed for shot blasting is 4700mm. In the actual production process, steel plates with a width of 1800-2250mm are often shot blasted, and there is more room in the width direction of the shot blasting. The production of this kind of steel plate will lead to low production efficiency and large consumption of pellets, etc., but the demand of the market and orders has to be produced. Contents of the invention [0003] The invention provides a double-row shot blasting method for steel plates with a thickness less than 150mm, a width less than 2250mm, and a length less than 12000mm, so as to greatly increase the sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C1/00B24C9/00B24C5/00B24C5/06B24C11/00C21D7/06
CPCB24C1/00B24C5/00B24C5/062B24C9/00B24C9/003B24C11/00C21D7/06
Inventor 何敏陈璐刘京
Owner NANJING IRON & STEEL CO LTD
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