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A kind of production method of hot-rolled pickling plate with no yellowing on the surface

A production method, hot-rolled pickling technology, applied in liquid cleaning methods, chemical instruments and methods, cleaning methods and utensils, etc., can solve the problem of high yellowing and sealing rate of pickling machine board surface, and avoid the problem of board surface Effects of yellowing and blackening, reducing yellowing, and preventing yellowing

Active Publication Date: 2022-07-26
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a method for producing hot-rolled pickling plates without yellowing on the surface, which solves the problem of high sealing rate of yellowing on the surface of pickling machines

Method used

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  • A kind of production method of hot-rolled pickling plate with no yellowing on the surface
  • A kind of production method of hot-rolled pickling plate with no yellowing on the surface

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Embodiment Construction

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] The invention provides a technical scheme: a production method of a hot-rolled pickled plate with no yellowing on the surface.

[0022] (1) During the normal production process of the tension leveling machine, it is changed to the whole process of tension leveling mode to avoid the yellowing and blackening of the board surface caused by the unstretched head and tail.

[0023] When setting the over-stretching machine for the st...

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Abstract

The invention discloses a production method of a hot-rolled pickling plate with no yellowing on the surface, and relates to the technical field of strip steel pickling. The method for producing a hot-rolled acid-washed sheet with no yellowing on the surface includes a pickling process and a tension-leveling treatment. In the tension-leveling process, the tension-leveling machine is in a full-scale tension-leveling mode. In the acid-washing process, inhibitors and blunters are added. chemical agent. The production method of the hot-rolled pickled plate with no yellowing on the surface changes the normal production process of the tension leveling machine to the full tension leveling mode, so as to avoid the yellowing and blackening of the board surface caused by the lack of tension leveling at the head and tail; stable and stable pickling speed, Prevent yellowing caused by over-pickling or under-pickling; add inhibitors to improve strip surface whiteness and reduce yellowing; adopt new nozzle models to maintain cleaning stability.

Description

technical field [0001] The invention relates to the technical field of strip steel pickling, in particular to a method for producing a hot-rolled pickling plate with no yellowing on the surface. Background technique [0002] With the adjustment of the output of the pickling unit and the adjustment of the product structure, the market's requirements for the surface quality of the pickling board are gradually increasing, and the customer's requirements for the surface quality of the pickling board are getting higher and higher. The pickling unit has an average closing rate of 10.4% due to yellowing of the board surface, which seriously affects the realization of the unit's products. [0003] At present, there is no patent applied for hot-rolled pickled sheet without surface yellowing and its production method. The present invention produces hot-rolled pickled plates with good surface quality and no yellowing defects through the selection of the nozzles of the rinsing tank and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B45/02B08B3/02C23G1/08C23G3/02
CPCB21B45/0275B08B3/02C23G1/08C23G3/02C23G3/024C23G3/025C23G3/028
Inventor 杨德伦赵云龙贾幼庆李有河彭正波李从增
Owner MAANSHAN IRON & STEEL CO LTD
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