Single-sided H-shaped embossed PCM color coated steel sheet and produced process thereof

A technology of color-coated steel plate and production process, which is applied in the field of steel plate, can solve the problems of low production efficiency, achieve the effects of increasing output, ensuring product quality, and reducing secondary pressing processing

Pending Publication Date: 2018-10-09
SHANDONG JINGHONG INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Single-sided H-shaped embossed PCM color-coated steel sheet is mainly used for metal shells of home appliances (such as metal side panels and back panels of refrigerators), and decorative metal panels for building materials. In the existing technology, it is mainly made of color-coated steel sheets on embossing roller equipment. The upper roller of the embossing roller is engraved with H-shaped patterns, and the lower roller is a flat roller. The performance of the surface coating layer is damaged to a certain extent, and the production efficiency of the existing technology is low

Method used

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  • Single-sided H-shaped embossed PCM color coated steel sheet and produced process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The present invention also provides a production process for single-sided H-shaped embossed PCM color-coated steel sheets, the specific steps of which are as follows:

[0025] S1, select the steel plate, the thickness of the steel plate after pickling and hardening is 0.35mm;

[0026] S2. Hot-dip galvanizing the hardened steel plate, and the galvanizing requirement is 40g / ㎡;

[0027] S3. The steel plate after galvanizing is subjected to H-shaped single-sided pressing before winding up on the galvanizing line, thereby forming a pressed H-shaped pattern 3, and the depth of the pattern is 4 μm. The roller is a mirror flat roller, and the skinning liquid needs to be evenly sprayed on the lower roller, the pressing pressure is 250mpa, the pressing speed of the hot-dip galvanizing line is 120m / min, and the back of the hot-dip galvanized coil is flat and unchanged;

[0028] S4. The single-sided H-type hot-dip galvanized coil that has been pressed has been transferred to the c...

Embodiment 2

[0035] The present invention also provides a production process for single-sided H-shaped embossed PCM color-coated steel sheets, the specific steps of which are as follows:

[0036] S1, select the steel plate, the thickness of the steel plate after pickling and hardening is 0.6mm;

[0037] S2. Hot-dip galvanizing the hardened steel plate, and the galvanizing requirement is 60g / ㎡;

[0038] S3. The steel plate after galvanizing is subjected to H-shaped single-sided pressing before winding up on the galvanizing line, so as to form a pressed H-shaped pattern 3, and the depth of the pattern is 5 μm. The roller is a mirror flat roller, and the skinning liquid needs to be evenly sprayed on the lower roller, the pressing pressure is 280mpa, the pressing speed of the hot-dip galvanizing line is 140m / min, and the back of the hot-dip galvanized coil is flat and unchanged;

[0039] S4. The single-sided H-type hot-dip galvanized coil that has been pressed has been transferred to the colo...

Embodiment 3

[0046] The present invention also provides a production process for single-sided H-shaped embossed PCM color-coated steel sheets, the specific steps of which are as follows:

[0047] S1, select the steel plate, the thickness of the steel plate after pickling and hardening is 1mm;

[0048] S2. Hot-dip galvanizing the hardened steel plate, and the galvanizing requirement is 100g / ㎡;

[0049] S3. The steel plate after galvanizing is subjected to H-shaped single-sided pressing before winding on the galvanizing line, thereby forming a pressed H-shaped pattern 3, and the depth of the pattern is 7 μm. The upper roll used is a steel roll with engraved H-shaped texture, and the lower The roller is a mirror flat roller, and the skinning liquid needs to be evenly sprayed on the lower roller, the pressing pressure is 300mpa, the pressing speed of the hot-dip galvanizing line is 160m / min, and the back of the hot-dip galvanized coil is flat and unchanged;

[0050] S4. The single-sided H-typ...

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Abstract

The invention relates to the technical field of steel plates, in particular to a single-sided H-shaped embossed PCM color coated steel sheet. The single-sided H-shaped embossed PCM color coated steelsheet comprises a substrate. The upper surface of the substrate is sprayed with a first chromate-free passivation layer. H-shaped embossed figures are further arranged on the part, on the upper side of the first chromate-free passivation layer, of the substrate. The upper sides of the H-shaped embossed figures are further sprayed with a primer layer. A finish paint layer is further arranged on theupper surface of the primer layer. A protection film is further arranged on the upper surface of the finish paint layer. The lower surface of the substrate is further sprayed with a second chromate-free passivation layer. An epoxy chromate-free back paint layer is arranged at the lower end of the second chromate-free passivation layer. The invention further provides a protection process of the single-sided H-shaped embossed PCM color coated steel sheet. Single-sided H-shaped embossing is conducted before winding of a hot galvanizing production line, the production efficiency of the productionline is improved by 40% than that of the industry, the yield is increased, secondary embossing machining is reduced, one-time forming is achieved, and the product quality, especially the product performance can be ensured through the production process.

Description

technical field [0001] The invention relates to the technical field of steel plates, in particular to a single-sided H-shaped embossed PCM color-coated steel plate and a production process thereof. Background technique [0002] Single-sided H-shaped embossed PCM color-coated steel sheet is mainly used for metal shells of home appliances (such as metal side panels and back panels of refrigerators), and decorative metal panels for building materials. In the existing technology, it is mainly made of color-coated steel sheets on embossing roller equipment. The upper roller of the embossing roller is engraved with H-shaped patterns, and the lower roller is a flat roller. The performance of the surface coating layer is destroyed to a certain extent, and the production efficiency of the prior art is low. Contents of the invention [0003] The object of the present invention is to solve the shortcomings in the prior art, and propose a single-sided H-shaped embossed PCM color-coat...

Claims

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Application Information

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IPC IPC(8): B44C5/04B44C1/24
CPCB44C1/24B44C5/04B44C5/0446
Inventor 周国庆时佩涛郭江峰吕伟
Owner SHANDONG JINGHONG INTELLIGENT TECH CO LTD
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