A kind of production method of galvanized steel strip for packaging

A production method and packaging technology, applied in packaging, transportation, packaging, coating, etc., can solve problems such as pollution and production costs, and achieve the effects of easy coating quality, convenient operation, and high efficiency

Active Publication Date: 2011-12-28
上海宝钢新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of this invention is to propose a production method of galvanized steel strip for packaging, so as to solve the problems of pollution and high production cost in the current galvanizing process

Method used

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  • A kind of production method of galvanized steel strip for packaging
  • A kind of production method of galvanized steel strip for packaging
  • A kind of production method of galvanized steel strip for packaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The cold-rolled coil with the specification of 0.8×389mm is selected as the raw material. The operating speed of the unit is 20m / min, the bluing temperature is 320°C, and the mass ratio of the original paint to water is 1:3. The raw material is slit into strips of 0.8×31.75mm after slitting by discs, a total of 12 strips, which are produced according to the above-mentioned process flow.

[0052] The surface of the finished product is bright silver, evenly coated with zinc, glossy, no background color of the steel strip, the film thickness is about 5μm, the tensile strength is above 800MPa, and the elongation is greater than 6%.

[0053] Example 2

Embodiment 2

[0055] The cold-rolled coil with the specification of 0.8×389mm is selected as the raw material. The operating speed of the unit is 25m / min, the bluing temperature is 320°C, and the mass ratio of the original paint to water is 1:3. The raw material is slit into strips of 0.8×31.75mm after slitting by discs, a total of 12 strips, which are produced according to the above-mentioned process flow.

[0056] The surface of the finished product is silver-white, evenly coated with zinc, and has glossiness. There is no background color of the steel strip. The film thickness is about 5 μm, the tensile strength is above 800MPa, and the elongation is greater than 6%.

[0057] Example 3

Embodiment 3

[0059] The cold-rolled coil with the specification of 0.8×389mm is selected as the raw material. The operating speed of the unit is 30m / min, the bluing temperature is 325°C, and the mass ratio of the original paint to water is 1:3. The raw material is slit into strips of 0.8×31.75mm after slitting by discs, a total of 12 strips, which are produced according to the above-mentioned process flow.

[0060] The surface of the finished product is silver-white, evenly coated with zinc, and the background color of the steel strip can be seen slightly. The film thickness is about 3μm, the tensile strength is above 800MPa, and the elongation is greater than 6%.

[0061] The mechanical property test of the steel strip in the above examples was carried out on the XYA105C (CMT5105) microcomputer universal tensile testing machine in the laboratory of Shanghai Baosteel Packaging Steel Strip Co., Ltd., and the sample adopts a fully rectangular cross-sectional shape without machining.

[0062...

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Abstract

The invention relates to a production method of a steel strip, in particular to a production method of a zinc-coated steel strip for packaging. The production method of the galvanized steel strip for packaging includes uncoiling, welding, strip slitting and stripping, deburring and leveling, surface bluing, cooling, cleaning, surface coating with zinc, coating drying, waxing, coiling and other steps, the zinc coating on the surface adopts the dip coating process, the mass ratio of the original paint and water is 1:2.8~1:3.2, the temperature range of the coating is 20~35°C, and the zinc coating speed on the surface is 20~35m / min. The production method of the galvanized steel strip for packaging proposed by the invention solves the problems of pollution in the current galvanizing process and high production cost of galvanizing.

Description

technical field [0001] The invention relates to a production method of a steel strip, in particular to a production method of a zinc-coated steel strip for packaging. Background technique [0002] Packaging steel belt, also known as strapping or steel belt, is a narrow strip packaging material with high tensile strength and certain elongation. It is widely used in the packaging and bundling of steel industry, construction industry, non-ferrous metal industry, glass industry, machinery industry and other products. [0003] At present, manufacturers of packaging steel strips at home and abroad usually treat the surface of the steel strips by painting, galvanizing, and bluing to avoid corrosion of the steel strips during storage and transportation. Among them, the bluing process is the most common, which is characterized by simplicity and low cost, and the disadvantage is that the anti-corrosion effect is poor. High temperature and high cost; the galvanized surface has the be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/14B23P15/00B65D63/02B05D1/38B05D3/02
Inventor 韩建春俞晓峰袁洁敏马科
Owner 上海宝钢新材料技术有限公司
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