Key Factors Affecting the Pressing of Vacuum Laminator

2023-01-11 17:19

PP sheet (semi-cured sheet, bonding sheet):PP sheet is a material that is not completely cured by resin, so it is also called PP sheet, which acts like glue and is sometimes called bonding sheet. The resin that is not completely cured (B-stage resin) has fluidity under the action of high temperature and high temperature, can quickly fill and cure, complete the bonding process, and then form the insulating layer together with the carrier (glass fiber). Therefore, the quality of the PP sheet greatly affects the reliability, stability, and the like of the multilayer board. Based on this, most manufacturers choose the A1 grade copper clad laminate of Shengyi brand and the matching PP sheet of the same brand to ensure the yield and high reliability of multi-layer laminate production.

 

Press: The quality of the vacuum laminating machine often affects whether it can produce high-quality multi-layer boards. But vacuum laminator, less millions, more than tens of millions. Therefore, many factories do not have their own pressing production lines, often through outward, by his factory OEM. From an objective point of view, OEM increases the production cost to a certain extent, implicitly raises the price of the product, and also increases the delivery time of the product and aggravates the instability of quality. The hot press assembly of the vacuum laminator has a special controller for special tuning and matching corresponding programs, which can accurately control the heating and cooling thermal cycle of the hot plate, the hydraulic pressure, and the rise and fall of the temperature; and the supporting cold press, Can effectively eliminate stress and ensure that the product after pressing is smooth and uniform. The combination of cold and hot press can not only ensure the processing accuracy, but also ensure the low failure rate, so that the product after pressing can get better quality and performance. The vacuum chamber is composed of upper and lower hot plates, and each has a built-in heater. The product is loaded into the hot plate, the hot plate is closed (forming a chamber), and the inside is under vacuum. After a set time, the air cushion is supplied with compressed air and expands, pressing the product on the hot plate. By this pressing force and heat, the pressing is performed.

Auxiliary materials: auxiliary materials are often ignored when introducing the pressing process, but the collocation and use of auxiliary materials actually have a great influence on the pressing effect. At present, imported pressing auxiliary materials are widely used in the industry, and the service life of the auxiliary materials and the grinding and maintenance cycle of the steel plate are strictly controlled, which well ensures the quality of the product after pressing. Of course, this also increases the production to a certain extent. Cost, but still lower than the cost of outward.

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