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Process for manufacturing steel-plastic composite steel belt

A technology of steel-plastic composite and manufacturing method, which is applied in the direction of surface coating liquid device, pretreatment surface, coating, etc., can solve the problems of complex manufacturing process and high production cost, and achieve low production cost, high production efficiency, The effect of energy saving

Inactive Publication Date: 2009-05-13
武汉市江夏区江南实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the Chinese patent application 200410076792.7, a kind of plastic-coated steel strip and its special equipment and manufacturing method are disclosed. The method of extrusion coating is mainly used to complete the plastic coating of the steel strip. The manufacturing process is relatively complicated and the production cost is relatively high. high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. First put steel coil A 1 Position on the unwinding rack;

[0022] 2. Adjust the slitting knife distance to 25mm, a total of 16 stations;

[0023] 3. Pass 25mm*16 steel strips through the induction heating blueing furnace;

[0024] 4. The strips drawn from the blueing furnace enter the high-voltage electrostatic spraying room;

[0025] 5. Fix the 16 strips on the winding shaft respectively;

[0026] 6. Put the prepared plastic powder B 1 Add to the powder supply device;

[0027] 7. Adjust the tension before and after, just tighten the tape, and the winding speed is 4.02m / min;

[0028] 8. Turn on the induction heating blue furnace, and control the temperature at about 710°C;

[0029] 9. Turn on the cooling fan and spray gun switch, so that the electrostatic high voltage is 100kv;

[0030] 10. Air-cool the sprayed steel strip to below 40°C and wind it up.

[0031] That is, the epoxy polyester steel-plastic composite steel strip with a width of 25.22 mm and a thi...

Embodiment 2

[0033] 1. First put steel coil A 2 Position on the unwinding rack;

[0034] 2. Adjust the slitting knife distance to 19mm, a total of 21 stations;

[0035] 3. Pass 19mm*21 steel strips through the induction heating blueing furnace;

[0036] 4. The strips drawn from the blueing furnace enter the high-voltage electrostatic spraying room;

[0037] 5. Tighten the 21 strips on the winding shaft respectively;

[0038] 6. Put the prepared plastic powder B 2 Add to the cleaned powder supply device;

[0039] 7. Adjust the tension before and after, just tighten the tape, and the winding speed is 4.51m / min;

[0040] 8. Turn on the induction furnace and control the temperature at about 725°C;

[0041] 9. Turn on the cooling fan and spray gun switch, the electrostatic high voltage is 90kv;

[0042] 10. Air-cool the sprayed steel strip to below 40°C and wind it up.

[0043] That is to say, a polypropylene steel-plastic composite steel strip with a width of 19.16mm and a thickness of...

Embodiment 3

[0045] 1. First put steel coil A 3 Position on the unwinding rack;

[0046] 2. Adjust the slitting knife distance to 32mm, a total of 10 stations and 16mm, a total of 5 stations;

[0047] 3. Pass 15 steel strips through the induction heating blueing furnace;

[0048] 4. The strips drawn from the blueing furnace enter the high-voltage electrostatic spraying room;

[0049] 5. Tighten 15 strips on the winding shaft respectively;

[0050] 6. Put the prepared plastic powder B 3 Add to the cleaned powder supply device;

[0051] 7. Adjust the tension before and after, just tighten the tape, and the winding speed is 5.62m / min;

[0052] 8. Turn on the induction furnace and control the temperature at about 746°C;

[0053] 9. Turn on the cooling fan and spray gun switch, the electrostatic high voltage is 80kv;

[0054] 10. Air-cool the sprayed steel strip to below 40°C and wind it up.

[0055] That is to obtain a high-density polyethylene steel-plastic composite steel strip with ...

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Abstract

The invention relates to a method for manufacturing a composite plastics-steel steel strip used for package. The steel strip is manufactured through the following steps: conducting the bluing treatment on the steel strip, cooling the steel strip after the bluing treatment, delivering into a high voltage electrostatic plastic-spraying device for the surface plastic spraying, and cooling the steel strip for the shaping after the surface plastic spraying. The invention has the beneficial effects that (1) the technological process is simple, the operation is convenient and controllable, the equipment investment is low, and the popularization and the application are facilitated; (2) the residual heat generated by the induction heating blueing is fully utilized to conduct the plastic spraying during the manufacturing procedure, an integrated continuous production is formed and the energy consumption is saved; (3) the plastic spraying is conducted in an enclosed generator, about 80 percent of the plastic powder ejected by a spray gun is attached to the surface of a steel plate, the residual powder is collected for the reutilization, so that the raw material is effectively saved, and the production environment is cleaned; and (4) the plastic spraying adopts high-pressure electrostatic adsorption principle, the quality of a coating layer is high, the coating layer is beautiful, the bonding power is high, and the production efficiency is high.

Description

technical field [0001] The invention relates to a manufacturing method of a steel-plastic composite steel strip for packaging. technical background [0002] Steel belt is a narrow and long thin steel strip produced to meet the needs of different industrial sectors. It is widely used in packaging and binding of cartons, wooden boxes, chemical products and metal materials. At present, there are mainly three kinds of blued steel strips, painted steel strips and galvanized steel strips. The blued steel strip is easy to rust after being exposed to moisture or water, and has poor corrosion resistance. The surface coating of the painted steel strip has poor adhesion and is easy to age and fall off. Galvanized steel strips pollute the environment and are costly during the manufacturing process. The steel-plastic composite steel strip is composed of a steel strip covered with a plastic layer, which has the characteristics of good packaging performance, strong corrosion resistance,...

Claims

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Application Information

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IPC IPC(8): B05D1/06B05D7/24B05D3/10B05D3/04B05D3/12
Inventor 王菊珍陈立艳潘启顺刘雄文
Owner 武汉市江夏区江南实业有限公司
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