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Preparation process of color paint steel plate

A preparation process and technology of steel plates, applied in the field of preparation technology of color-painted steel plates, can solve the problems of difficult large-area construction, poor metal adhesion, long curing time, etc., and achieve excellent adhesion and workability, increase hardness, and excellent resistance. solvent effect

Active Publication Date: 2016-02-03
佛山市高悦五金电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the advancement of technology, it is found that silicone resin also has better heat resistance. The basic skeleton of silicone resin is the main chain of Si-O, which has higher bond energy than the C-C bond of ordinary polymers. Heat resistance and anti-oxidation are also strong. Normally, the heat resistance temperature of silicone resin is 300°C. It has been proved by practice that in addition to heat resistance, silicone resin also shows excellent weather resistance and stain resistance. , water removal, cold resistance and chemical corrosion resistance, etc., but in actual use, there are still the following problems, such as: need high temperature curing (above 250 ℃) and long curing time, difficult large-scale construction, adhesion to metal Poor, poor solvent resistance and high production cost, for this reason, we must find a high-performance material that can replace silicone resin for the coating treatment of steel plates. Polyester resin or epoxy resin for higher heat resistance

Method used

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  • Preparation process of color paint steel plate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The color-painted steel sheet involved in this embodiment is obtained by applying a primer coating to a pre-coated steel sheet and baking it sequentially, wherein the primer coating is applied to the surface layer of the pre-coated steel sheet to form a primer coating film , by weight percentage, described primer paint comprises the following components:

[0025] Saturated carboxylated polyester: 30%; Filler: 15%;

[0026] Silicone coupling agent: 1%; Phthalate: 0.5%;

[0027] Predispersed pigment preparation: 1.5%; xylene solvent: 52%.

[0028] The following is a further description of the composition of the above components:

[0029] Saturated carboxylated polyester: solid content is 58%, specific gravity is 2.05, acid value is 12mgKOH / g.

[0030] Filler: including lead glass powder, dichromium trioxide and china clay, by weight percentage, lead glass powder is 10%, dichromium oxide is 2%, and china clay is 3%.

[0031] Pre-dispersed pigment preparation: It is pre...

Embodiment 2

[0035] The color-painted steel sheet involved in this embodiment is obtained by applying a primer coating to a pre-coated steel sheet and baking it sequentially, wherein the primer coating is applied to the surface layer of the pre-coated steel sheet to form a primer coating film , by weight percentage, described primer paint comprises the following components:

[0036] Saturated carboxylated polyester: 30%; Filler: 40%;

[0037] Silicone coupling agent: 1%; Phthalate: 0.5%;

[0038] Predispersed pigment preparation: 1.5%; xylene solvent: 52%.

[0039] The following is a further description of the composition of the above components:

[0040] Saturated carboxylated polyester: solid content is 62%, specific gravity is 2.8, acid value is 15mgKOH / g.

[0041] Filler: including boron glass powder, chromium oxide, china clay, aluminum powder and talcum powder, by weight percentage, filler includes: 30% boron glass powder, 2% chromium oxide, 3% china clay, 4% aluminum powder and ...

Embodiment 3

[0047] The color-painted steel sheet involved in this embodiment is obtained by applying a primer coating to a pre-coated steel sheet and baking it sequentially, wherein the primer coating is applied to the surface layer of the pre-coated steel sheet to form a primer coating film , by weight percentage, described primer paint comprises the following components:

[0048] Saturated carboxylated polyester: 40%; Filler: 40%;

[0049] Silicone coupling agent: 1%; Phthalate: 1%;

[0050] Predispersed pigment preparation: 3%; xylene solvent: 16%.

[0051] The following is a further description of the composition of the above components:

[0052] Saturated carboxylated polyester: solid content is 65%, specific gravity is 2.54, acid value is 22mgKOH / g.

[0053] Filler: including phosphate glass powder, chromium oxide, china clay, aluminum powder and talcum powder, by weight percentage, the filler includes: 28% phosphate glass powder, 2% chromium oxide, 3% china clay, 6% aluminum po...

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Abstract

The invention discloses a preparation process of a color paint steel plate. A weather-resistant steel plate is prepared by coating and baking a pre-coated steel plate by virtue of a bottom prime paint, wherein the coating and baking step includes: smearing color paint on the surface layer of the pre-coated steel plate, wherein the thickness of the coating is 3 to 15 micrometers, after the smearing, sending the steel plate into an electric furnace, baking the steel plate for 1 to 6 hours, and then obtaining the color paint steel plate. Saturated carboxylated polyester is used as a base material of the prime paint, in the real application, since the saturated carboxylated polyester has excellent heat resistance, excellent adhesion and machinability for a metal material, excellent solvent resistance and good high heat hardness, can be used for being smeared on the metal surface such as an iron material, an aluminum material, stainless steel and the like and is widely applied to the heat resisting materials such as a baking tray, an electric frying pan and a roaster.

Description

technical field [0001] The invention belongs to the field of metal materials, and specifically relates to a preparation process of painted steel plates. Background technique [0002] The steel plate is made by coating and drying the pre-coated steel plate before processing and forming. Since the film is formed after the film is formed, it is not only required that the pre-coated steel plate can meet the high requirements of hardness and formability. The coating material used for its coating also needs to be resistant to processing. In the field of metal materials, the coating on the metal can not only protect and beautify the appearance of the metal, such as rust prevention and coloring, etc. Sometimes, the coating can also be used to achieve some special functions, such as improving lubrication and improving deep drawing. performance etc. In the actual application process, the effect of the coating is closely related to the coating. Taking heat-resistant coatings as an e...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D7/12
Inventor 张一帆
Owner 佛山市高悦五金电器有限公司
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