Preparation process of flexible copper cladded base plate (Chinese)

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The invention discloses a preparation process of a flexible copper cladded base plate, and relates to the technical field of copper cladded base plate production. Twice pressing processes of a conventional process are divided into three times of pressing processes so as to avoid drapes generated during the conventional high-temperature and high-pressure pressing. Firstly, twice false pasting of the front side and the back side is performed; the false pasting refers to the pasting at low temperature and low pressure; the temperature and the pressure are greatly reduced, so that drapes cannot beformed on the surface of the copper cladded base plate; then, the third time of pressing is performed; the third time of pressing is performed in a hot pressing tank; the hot pressing tank uses air for pressurization; a base plate can be uniformly stressed and heated through the air pressurization; meanwhile, after the pressing, the base plate passes through a heat insulation wheel; the heat insulation wheel does not generate great pressure on the base plate; a crystal phase structure cannot be changed; only the heat insulation effect is achieved on the copper cladded base plate; the buffer effect is achieved. Therefore the slowly cooled base plate cannot generate drapes.

本发明公开种可挠性覆铜基板的制备工艺,涉及覆铜板生产技术领域,本发明将传统工艺的两次压合工艺分为三次压合工艺,目的为改善传统高温高压压合时产生的皱纹;本发明先是正反两面的两次假贴,假贴是指较小温度和压力的贴合,由于大大减小了温度和压力,使得覆铜基板表面不会产生皱纹,再进行第三次压合,第三次压合在热压罐中进行,热压罐是采用空气加压,空气加压可以使得基板受力、受热均匀;同时,压合后基板再通过保温轮,此轮没有对基板产生较大的压力,不会使得晶相结构发生改变,只是给覆铜基板起到保温的作用,起到了缓冲的作用,因此,缓慢冷却的基板同样不会产生皱纹。

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  • Title:
    Preparation process of flexible copper cladded base plate
  • Additional title:
    种可挠性覆铜基板的制备工艺
  • Patent number:
    CN108128014
  • Application date:
    2017-11-24
  • Patent applicant:
  • Patent family:
  • Author / Creator:
  • Publisher:
    Europäisches Patentamt
  • Year of publication:
    2017
  • Type of media:
    Patent
  • Type of material:
    Electronic Resource
  • Language:
    Chinese
  • Classification:
    IPC:    B32B Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse, LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

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