Brush roll cleaning process in stainless steel hot-rolled sheet acid cleaning process and brush roll therefor

A technology of hot-rolled plate and stainless steel, applied in the brush roller cleaning method and brush stick field, can solve the problems of short service life, achieve good wear resistance, improve cleaning quality, and prolong service life

Inactive Publication Date: 2004-11-10
秦广谦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (4) The silicon carbide abrasive nylon wire brush roller is used for cleaning for the first time, and the pure nylon wire brush roller is used for cleaning the second time; the biggest disadvantage of pure nylon wire brush roller is its short service life

Method used

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  • Brush roll cleaning process in stainless steel hot-rolled sheet acid cleaning process and brush roll therefor
  • Brush roll cleaning process in stainless steel hot-rolled sheet acid cleaning process and brush roll therefor

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Experimental program
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Effect test

Embodiment Construction

[0020] figure 1 Shown, a kind of brush roll cleaning method in the pickling process of stainless steel hot-rolled plate, comprises:

[0021] Shot blasting; removal of scale, pretreatment.

[0022] Sulfuric acid pickling; untreated shot blasting to remove iron oxide scales.

[0023] The first brush roller cleaning; it is called heavy brush cleaning; it uses a nylon wire brush roller with a diameter of 1.2-1.5mm and a silicon carbide abrasive of 80-100 mesh.

[0024] Hydrofluoric acid + nitric acid mixed acid pickling; passivation treatment.

[0025] The second brush roller cleaning is the brush roller cleaning at the outlet of the stainless hot plate, also known as light brush cleaning. It uses a nylon brush roller with a diameter of about 0.5mm and contains micronized silicon carbide abrasives.

[0026] The cleaned sheet is sent to the cold rolling mill for rolling, and then the cold-rolled sheet is produced by the cold sheet pickling line.

[0027] The sulfuric acid tank ...

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Abstract

The invention provides a washing method using brush roller during pickeling stainless steel heating platen and the brush roller, it improves existing process techniques like stainless steel heating platen outlet brush roller washing, etc. its character: the first washing by brush roller after pickeling by sulphuric acid adopts a nylon brush roller, the nylon's diameter 1.2-1.5 mm and containing SiC grinding material 80-150 eyes, to make heavy-brush washing; the second washing adopts a nylon brush roller, the nylon's diameter about 0.5mm, and containing micro powder SiC grinding material to make light-brush washing. It has the advantages of clear elimination of leftover, no harm to passive film and no nick, long service life of the brush roller, high productivity, etc.

Description

technical field [0001] The invention belongs to a process method in the production of stainless steel plates, and relates to a brush roller cleaning method and a brush stick in the pickling process of stainless steel hot-rolled plates in the pickling process of stainless steel plate production. Background technique [0002] At present, in the production process of stainless steel plate, especially in the production process of stainless steel hot plate pickling, from raw material of hot-rolled stainless steel coil → annealing in high temperature furnace → shot blasting pretreatment of shot blasting machine → sulfuric acid pickling → first roller brushing Cleaning→Hydrofluoric acid, nitric acid mixed acid pickling→The second brush roll cleaning, that is, stainless hot plate outlet brush roll cleaning→Providing raw materials for the cold rolling line. The cleaning of the brush roll in the pickling process of the stainless steel hot-rolled plate directly affects the product qual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G3/02
Inventor 秦广谦
Owner 秦广谦
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