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Process for producing conductive cloth

A preparation process and technology of conductive cloth, applied in the field of production and preparation technology of shielding material conductive cloth, can solve the problems of circuit short circuit, long process flow, powder drop of metal particles, etc., and achieve precise process control, process system stability, and strong bonding force. Effect

Inactive Publication Date: 2003-04-09
长沙鑫邦工程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

1. The bonding force is not good, the product is unstable, and the phenomenon of metal particles falling off is prone to occur, resulting in a short circuit in the electrical circuit.
2. Insufficient softness and relatively hard, which is not conducive to installation and use in complex electronic equipment
3. The process flow is long and complicated, and the electroless plating process system is unstable and easy to decompose, which is difficult to control in continuous and large-scale production
4. Electroplating process: the surface density uniformity is not good, and it is difficult to accurately control the uniformity of the metal coating
5. The process of electroplating and chemical plating has the problem of serious pollution to the environment
6. The cost of the product is relatively high for the production process of electroless plating and electroplating

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] A. First, take a nylon cloth with a total fiber fineness of 68D, a woven fabric density of 230T, a woven fabric width of 1200mn, and a woven fabric length of 200m, and use high-pressure gas to blow and complete the winding finishing work. B. The following preparations are all completed in a vacuum environment, the vacuum degree is 4×10 -4 Pa, then use an electric hoist to hoist the substrate in the unwinding chamber of the vacuum equipment, clean it by an ion cleaner, and pass the guide roller, tension roller, and pressure roller. Before entering the tension roller, it needs to pass a real-time electronic monitoring probe , To detect the thickness and line speed of the fiber fabric substrate; C. The next pretreatment is to perform magnetron sputtering in the vacuum chamber to pre-plat the metal layer, and the thickness of the bottom is 0.5μm; D. After cooling The roller cools down and enters the metal sputtering coating room 1 for magnetron sputtering. There are two sets of...

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Abstract

The conductive cloth producing process is one physical vapor deposition process. Continuous fiber fabric is made to pass through a serial technological process inside a vacuum equipment so that single or multiple sputtered metal film is formed on th fabric. The said process can producing conductive cloth with metal layer bonding to fiber fabric firmly continuously and in large scale.

Description

Technical field: [0001] The invention relates to a production and preparation process of shielding material conductive cloth. Background technique: [0002] Conductive cloth is an EMI shielding material, it is widely used in aerospace, electronics, communications, medical, radar and other fields. Domestic conductive cloth products appeared in the 1980s to use electroless plating or electroplating methods to produce conductive cloth, but due to the limitations of production process and performance, mainly referring to problems such as adhesion and system stability, continuous large-scale production cannot be achieved. Production can not meet the requirements of various electrical equipment. Therefore, many companies and manufacturers that operate and use EMI materials currently import EMI products processed and formed from conductive cloth from abroad. Since most of this product has been processed from abroad, its shape is limited to square, rectangular and D-shaped shapes. When t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/20C23C14/35D06Q1/04
Inventor 唐砾文忠亮施勤彭建武曹仁东
Owner 长沙鑫邦工程新材料技术有限公司
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