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Method for color-coating and manufacturing color steel plates

A processing method and technology for color steel plates, which can be used in coatings, devices for applying liquid to surfaces, and surface pretreatment, etc., which can solve problems such as quality defects of finished products, poor cleanliness and smoothness of steel plates, and large differences in temperature of steel plates. , to achieve the effect of good quality and improved finish

Inactive Publication Date: 2011-08-31
浙江华东轻钢建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a color coating processing method for color steel plate, which mainly solves the problem that the cleanliness and smoothness of the steel plate are poor when the steel plate is pre-treated in the prior art, resulting in quality defects in the finished product The present invention has also solved when changing the paint of another kind of color, just must clean oil tank, can cause multiple colors to pollute each other as cleaning is not clean, can produce the defective of board color band during production, and when baking When the steel plate is solidified, the temperature difference between the two sides of the steel plate is relatively large, which causes technical problems such as uneven product quality

Method used

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  • Method for color-coating and manufacturing color steel plates
  • Method for color-coating and manufacturing color steel plates
  • Method for color-coating and manufacturing color steel plates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: a kind of color steel plate color coating processing method of this example, its steps are:

[0033] a. Pre-degrease, roll, and degrease the galvanized steel plate after uncoiling, and then clean the steel plate twice, wherein the temperature for pre-degreasing is 70°C, the temperature for degreasing is 70°C, and the temperature for twice cleaning is 65°C;

[0034] b. Grinding the outer surface of the cleaned steel plate until the surface of the steel plate is smooth, then rolling and cleaning the steel plate, the cleaning temperature is 65°C;

[0035] c. Chemically coat the cleaned steel plate and then dry it at 80°C for 12 seconds. Use the lifting car in the painting lifting device to directly feed the paint bucket to the paint bucket through the diaphragm pump in one step. Install the machine, paint the bottom and back of the dried steel plate with the coating machine, then use the adjustable blowing nozzle device to cure the bottom and back paint for ...

Embodiment 2

[0039] Embodiment 2: a kind of color steel plate color coating processing method of this example, its steps are:

[0040] a. Pre-degrease, roll, and degrease the galvanized steel plate after uncoiling, and then wash the steel plate twice. ℃;

[0041] b. Grinding the outer surface of the cleaned steel plate until the surface of the steel plate is smooth, then rolling and cleaning the steel plate, the cleaning temperature is 67°C;

[0042] c. Chemically coat the cleaned steel plate and then dry it at 100°C for 10 seconds. Use the lifting car in the painting lifting device to directly feed the paint bucket to the paint bucket through the diaphragm pump in one step. Install the machine, paint the bottom and back of the dried steel plate, and then use the adjustable blower device to cure the bottom and back paint for 25 seconds, and then cool the steel plate;

[0043] d. Use the lifting car in the painting lifting device to directly feed the paint bucket through the diaphragm pum...

Embodiment 3

[0045] Embodiment 3: a kind of color steel plate color coating processing method of this example, its steps are:

[0046] a. Pre-degrease, roll, and degrease the galvanized steel plate after uncoiling, and then clean the steel plate twice, wherein the temperature for pre-degreasing is 75°C, the temperature for degreasing is 75°C, and the temperature for twice cleaning is 70°C;

[0047] b. Grinding the outer surface of the cleaned steel plate until the surface of the steel plate is smooth, then rolling and cleaning the steel plate, the cleaning temperature is 70°C;

[0048] c. Chemically coat the cleaned steel plate, and then dry it at 120°C for 6 seconds. Use the lifting car in the painting lifting device to directly feed the paint bucket to the paint bucket through the diaphragm pump in one step. Install the machine, paint the bottom and back of the dried steel plate with the coating machine, then use the adjustable blower device to cure the bottom and back paint for 30 seco...

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Abstract

The invention relates to a method for color-coating color steel plates, in particular to a method for color-coating and manufacturing color steel plates. The method mainly solves the problems in the prior art that when steel plates are preprocessed, the cleanness and smoothness of the steel plates are worse, thereby products have quality defects. The method also solves the problems that when another color oil paint is replaced, the oil barrel must be cleaned, mutual pollution of a plurality of colors can be generated if the barrel is not completely cleaned, thereby generating plate surface color belt defects in production, when baked steel plates are solidified, the temperature difference between two sides of the steel plates is greater, thereby the product quality is not even, and the like. The method comprises the following steps: pre-degreasing, rolling, degreasing, cleaning, grinding, rolling, cleaning, coating, drying, coating bottom and back, coating paint on the bottom and the back, solidifying, cooling, coating surface, coating paint on the surface, solidifying, cooling and obtaining finished product color steel plates.

Description

technical field [0001] The invention relates to a color coating method for a steel plate, in particular to a color coating processing method for a color steel plate. Background technique [0002] In the production process of steel plate color coating, it is necessary to coat the coating material containing organic solvents on the steel strip, so that a patterned steel strip can be produced, which can be used in housing, electrical appliances and other fields. The Chinese patent discloses a method and equipment for continuous production of hot-rolled sheet color-coating and forming (publication number: CN 101249606A), which uses hot-rolled steel sheets as raw materials, and the entire process of steel strip processing from uncoiling to forming and shearing is completed online. It integrates decoiling, leveling, pickling and derusting, leveling, primer roller coating, curing and drying, roller forming, trimming, cutting to length, and stacking, and is used for the full continu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/14B05D3/00B05D3/12B05D3/02B05D3/10
Inventor 任晓良单兆水
Owner 浙江华东轻钢建材有限公司