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Numerical-control shaping and coiling equipment and preparation method for producing wide PTFE (Polytetrafluoroethylene) substrate film

A manufacturing method and a technology for a substrate film, applied in the field of machinery and equipment, can solve the problems of easy curling of polytetrafluoroethylene films, cannot be used flatly, and difficult to operate, and achieve the effects of no curling at the edges, easy operation, and improved production efficiency.

Inactive Publication Date: 2014-04-09
TIANJIN TIANSUBINHAI PTFE PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the PTFE film made by the traditional process is very easy to curl and cannot be used flat, so it is not easy to operate in the production process, resulting in serious waste

Method used

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  • Numerical-control shaping and coiling equipment and preparation method for producing wide PTFE (Polytetrafluoroethylene) substrate film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The manufacturing method that the present embodiment provides for producing wide-width PTFE substrate film comprises the following steps carried out in order:

[0017] 1. First, press the polytetrafluoroethylene resin into a tubular blank with a length of 885mm;

[0018] 2. Sinter the above blank, the resin expands after sintering, and the length of the blank can reach 915mm;

[0019] 3. After the above-mentioned blank is sintered, turn it into a wide-width film 14 with a thickness of 0.09 mm on a rotary cutter when the temperature reaches 130° C.;

[0020] 4. Start the above-mentioned numerically controlled shaping and rolling equipment for producing wide-width PTFE substrate film, then the above-mentioned film 14 is drawn to two heating rollers 4 of the numerically controlled shaping and winding equipment by guide rollers to carry out heating and shaping, and the heating roller 4 The heating temperature is 120°C, and then the edge is cut by the cutting shaft 6 to a w...

Embodiment 2

[0022] The manufacturing method that the present embodiment provides for producing wide-width PTFE substrate film comprises the following steps carried out in order:

[0023] 1. First, press the polytetrafluoroethylene resin into a tubular blank with a length of 1270mm;

[0024] 2. The above-mentioned blank is sintered, and the resin expands after sintering, and the length of the blank can reach 1300mm;

[0025] 3. After the above-mentioned blank is sintered, when the temperature reaches 130° C., it is turned into a wide-width film 14 with a thickness of 0.11 mm on a rotary cutter;

[0026] 4. Start the above-mentioned numerically controlled shaping and rolling equipment for producing wide-width PTFE substrate film, then the above-mentioned film 14 is drawn to two heating rollers 4 of the numerically controlled shaping and winding equipment by guide rollers to carry out heating and shaping, and the heating roller 4 The heating temperature is 130°C, and then the edge is cut by...

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Abstract

The invention discloses numerical-control shaping and coiling equipment and a preparation method for producing a wide PTFE (Polytetrafluoroethylene) substrate film. The equipment comprises a base, a bracket, a controller cabinet, two heating rollers, a cool roller, a cutting shaft, an upper coiling shaft, a lower coiling shaft, a plurality of guide rollers, a heating controller and a refrigerator. The wide PTFE substrate film produced by adopting the numerical-control shaping and coiling equipment and the preparation method for producing the wide PTFE substrate film can be used as a circuit board substrate film which is in match with a 4G (4-Generation) network; compared with the prior art, according to the equipment, the wide PTFE substrate film is shaped by using the heating rollers and the cooling roller, macromolecular chains in raw materials are orientated and rearranged along the axial direction, and the produced substrate film is flat and smooth in surface, free of coiling up in the edge and easy to operate, so that the great waste caused by the fact that the film cannot be used because of the coiling problem is avoided, and meanwhile, as the substrate film is cut, the working time is reduced, the production efficiency is improved, cooling water is replaced by the refrigerator, and a water resource is saved.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment, and in particular relates to a numerically controlled shaping and rolling equipment and a manufacturing method for producing wide-width PTFE substrate films. Background technique [0002] At present, the commonly used circuit board base film is mostly polyimide or polyester film with good performance. With the rapid development of communication technology, 4G network base stations will be spread all over the country. Among them, the circuit board base film used in transceiver equipment not only requires high added value and electrical properties, but also requires stable dielectric properties and can withstand high altitudes. , seaside and other climate environments, and is not easy to age. As a special engineering material, polytetrafluoroethylene (PTFE) material has excellent characteristics such as high added value, good weather resistance, stable dielectric properties, etc., so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D7/01B29K27/18
Inventor 魏元刚张超刘璐
Owner TIANJIN TIANSUBINHAI PTFE PLASTIC PROD