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Method for continuous production of hot galvanizing color-painted steel strip

A color-coated steel plate and hot-dip galvanizing technology, which is applied in the field of steel plate manufacturing, can solve the problems of steel strip waste and high production and operation costs, and achieve the effects of reduced investment costs, reduced production and operation costs, and reduced floor space

Inactive Publication Date: 2005-03-16
ZHONGSHAN CHUANGZHI BUILDING MATERIALS TECHCO
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] e. Since the steel strip after hot-dip galvanizing and the steel strip before color coating need to be cut, the waste of steel strip is caused;
[0008] f. The total production and operation costs are high

Method used

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  • Method for continuous production of hot galvanizing color-painted steel strip
  • Method for continuous production of hot galvanizing color-painted steel strip

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Experimental program
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Effect test

Embodiment Construction

[0038] see figure 1 , the method for continuous production of hot-dip galvanized colored coated steel sheets of the present invention comprises the following steps:

[0039] a. Install the steel coil on the uncoiler to unroll the steel coil into a steel strip;

[0040] b. If the last roll of steel strip is not fully unfolded, go to step c. If the last roll of steel strip is fully unrolled, clamp the head and tail of the two steel coils to the welding machine for welding, so that the front and rear two steel coils will be welded together. Weld together to achieve continuous production;

[0041] c. The steel strip enters the looper storage stage, and the steel strip is sent into the entrance looper;

[0042] d. After the steel strip comes out of the inlet looper, it enters the pre-plating treatment stage. The iron oxide on the surface of the steel strip is removed by hydrochloric acid spray pickling process. contaminated solvents;

[0043] e. The steel strip after pre-platin...

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Abstract

The invention discloses a continuous hot galvanizing colorful coating steel plate production method, which combines the hot galvanizing and color coating into one assembly line. The inventive continuous hot galvanizing colorful coating steel plate production method can cut down auxiliary apparatus, reduce the assembly line investment cost by 30-40%, reduce the accommodation area by 50-60%. The inventive method has no need for oiling after hot galvanizing, also has no need for treatment before color coating, so diminish the damage to steel plate shape. The inventive method has no need for the unstable operation of galvanizing plate welding, can effectively save the steel strip.

Description

【Technical field】 [0001] The invention relates to a method for manufacturing steel plates, in particular to a method for continuously producing hot-dip galvanized color-coated steel plates. 【Background technique】 [0002] Hot-dip galvanizing is the most widely used metal antirust method today. With the rapid development of cold-rolled steel strips, continuous hot-dip galvanizing for steel strips has been developed on a large scale. With the development of society, steel plates with appearance effects not only require anti-corrosion, but also require beautiful appearance, so color-coated steel plates emerge as the times require and develop rapidly. But at present, hot-dip galvanizing and color coating are independent production lines. No one has ever thought of combining the two production lines, but the use of independent production lines has the following disadvantages: [0003] a. Need more auxiliary equipment (such as uncoiler, winder, looper, shearing machine, welding m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14C23C2/06C23C2/26C23C28/00
CPCC23C28/00
Inventor 张锦彬
Owner ZHONGSHAN CHUANGZHI BUILDING MATERIALS TECHCO
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