Pressure maintaining method of FPC pressure maintaining machine coated with wear-resistant material

Abstract

The invention discloses a pressure maintaining method of an FPC (Flexible Printed Circuit) pressure maintaining machine coated with a wear-resistant material. The other end of an L-shaped exhaust pipeis generally connected with an air suction device, and the sucked air is then conveyed into a waste air filter. When a pressure head is pressed downwards, air suction holes suck air to suck away generated toxic gas, and due to the fact that the air suction holes are formed in a wedge-shaped surface and are vertically aligned with the lower portion of the wedge-shaped surface, the toxic gas can beeffectively, efficiently and accurately sucked, and the generated toxic gas can be effectively sucked. Therefore, the problem of poor firmness is thoroughly solved. Research finds that due to the fact that part of air of the pressure head does not circulate during pressure maintaining, the non-melting part can be slightly melted during pressure maintaining, and the yield is low. Cold air on the side edge can be sucked in the air suction process, other parts except the melting point of the tip portion can be blown by the cold air, and the problem that the non-melting part can be slightly melted during pressure maintaining is solved.

Description

technical field [0001] The invention relates to a pressure-holding method of an FPC pressure-holding machine coated with a wear-resistant material. Background technique [0002] The so-called holding pressure refers to the process of binding FPC (flexible circuit board) on the LCD surface in the automatic production process of LCD, which needs to be held by a high-temperature pressure holding head. The traditional pressure-holding indenter used for this kind of pressure-holding is an ordinary solid head, and then the indenter is heated by heating, and then the FPC is pressure-holding. During the pressure holding process, it is often found that when the FPC made of solidified aerobic material is heated and held for pressure, three problems will occur. 1. Poor firmness. It is found in the research that due to the lack of air circulation in the pressure head part during the pressure holding, the non-melting parts will melt slightly during the pressure holding, resulting in a l...

AI Technical Summary

Problems solved by technology

1. Poor firmness. It is found in the research that due to the lack of air circulation in the pressure head part during the pressure holding, the non-melting parts will melt slightly during the pressure holding, resulting in a low yield rate.

2. Since the pressure head is very hot, the air around it is also very hot when maintaining the pressure, resulting in more or less damage to other nearby components

3. The irritating gas is produced due to the melting of the material. Since the pressure keeping is done in the clean room, this situation will affect the health of the operators.

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