Prepreg vacuum hot-pressing tapping temperature control system

Abstract

The invention discloses a prepreg vacuum hot-pressing tapping temperature control system. The prepreg vacuum hot-pressing tapping temperature control system comprises a controller, a laminating machine, a temperature control system and a vacuum system; the temperature control system comprises a heating system, a cooling system and a monitoring system; a heat circulation pipeline is arranged between a hot kerosene heating device and a hot kerosene pipeline; a cold circulation pipeline is arranged between a heat exchanger and a cooling water tower; a water pump is arranged on the cold circulation pipeline; and temperature sensors are arranged in the hot kerosene heating device, the heat exchanger and the cooling water tower. The tapping temperature after the prepreg is subjected to hot pressing is set as 90 DEG C by the cooling system, so that the defect that the layering or binding force at the soft and hard connection position is insufficient is effectively overcome; in addition, the water of the plate surface is completely dried before a soft plate browns the to-be-pressed prepreg, and the stress after the plate surface is pressed is completely released by combining with the low tapping temperature, so the expansion and contraction change value of products can be stabilized and the plate warping problem of the product is controlled.

Description

technical field [0001] The invention relates to a temperature control system, in particular to a prepreg vacuum hot pressing furnace temperature control system. Background technique [0002] Due to the high reliability of the flexible and rigid board, the combination of rigid and flexible can replace the connector to ensure high reliability in harsh environments such as vibration, shock, and humidity. Therefore, rigid-flex boards are not only used in consumer electronics products, but also in automotive, medical, aviation and other fields. This puts higher standards on product quality. At present, the hot pressing and cold pressing of the vacuum pressure transfer machine for pressing prepregs are produced separately. However, due to the requirements of the characteristics of the soft-hard combination board, when pressing the prepreg, some positions are designed as a "layered structure", which causes the temperature of the product to be released after the hot pressing is co...

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Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a temperature control system for vacuum hot pressing of prepregs, which can solve the problem of delamination or bonding in the soft-hard junction area caused by the high temperature of the existing vacuum laminator when pressing the prepreg. lack of strength

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