如何保养PCB显影机？
Oct. 11, 2021
PCB显影机是一种印刷加工设备，通过半自动和全自动程序部分或全部完成干燥印版的显影、清洗、涂胶、干燥等过程。它一般由传动系统、显影系统、冲洗系统、干燥系统、程序控制系统等组成。
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Oct. 11, 2021
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如何在PCB加工中选择数控机床？
Oct. 08, 2021
数控钻床和数控铣床是PCB加工中的重要设备。设备很贵。数控机床的选择不仅对操作、工艺设置和维护非常重要，而且对产品质量也很重要。
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由于中国的电力和生产限制，PCB油墨的价格正在上涨
Sep. 30, 2021
It is reported that the short-term PCB upstream quotation will rise again. The "dual control of energy consumption" policy has been strongly implemented in China, and the impact of power restriction has continued to expand. The scope has been extended to more than 10 provinces and regions such as Jiangsu, Zhejiang and Guangdong. The affected people have expanded from heavy industry to light industry and solar energy, and the PCB industry has also been affected.
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钻床和铣床有什么区别？
Sep. 29, 2021
钻床是指主要使用钻头在工件上加工孔的机床。铣床主要是指使用铣刀加工工件各种表面的机床。
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PCB油墨有多少种不同的类型和功能
Sep. 28, 2021
At present, there are many kinds of inks in the market. PCB inks are mainly divided into circuit inks, solder resist inks and character inks. 1. circuit ink As a barrier to prevent corrosion of the circuit, it protects the circuit during etching. It is generally liquid photosensitive. There are acid corrosion resistance and alkali corrosion resistance. Alkali resistance is more expensive. This layer of ink should be dissolved with alkali after corrosion out of the line. 2. Solder resist ink It is painted on the line after the line is finished to protect the line. There are liquid photosensitive, heat curing and ultraviolet hardening. The pad is reserved on the board to facilitate the welding of components and play the role of insulation and anti-oxidation. 3. Legend ink It is used to mark the surface of the board, such as the symbol of components. It is generally white. In…
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热风焊锡整平的优缺点是什么
Sep. 27, 2021
热风整平，也称为热风焊料整平（通常称为锡喷涂），是一种在PCB表面涂覆熔融锡（铅）焊料并用加热的压缩空气整平（吹扫）以形成涂层的过程，该涂层不仅能抵抗铜的氧化，还能提供良好的可焊性。热风整平焊料和铜在接头处形成铜锡金属间化合物。在热空气整平过程中，PCB应沉入熔融焊料中；气刀在焊料凝固之前吹出液态焊料；风刀可以最大限度地减少铜表面焊料的弯月面，防止焊料桥接。
