印制板，阻焊膜，丝网印刷，品质控制。
Printed circuit board, Solder mask, Flood screen printing, Quality Control.
网印：在板两面完全涂覆阻焊油墨，包括导通孔、焊盘。
Screen Print: Solder mask coating will cover completely the panel holes, pads and traces, on both sides.
如图，那些字在线路和阻焊层都有，我们建议删除阻焊上的字。
Please see below picture, those letters overlap at circuit layer and solder mask. We suggest deleting the letters in solder mask layer.
通过试验证实了组合开关在阻焊变压器中用作功率调节是可行的。
The test expresses that it is possible to adjust power by combination switch in resistance welding transform.
湿膜、液态感光阻焊的干燥和固化；也可用于网版的干燥；板材和孔壁的干燥等等。
Dry and solidify the wet film, liquid light sensitive resistance welding, dry the net board and hole wall, etc.
另外，在阻焊膜涂覆前，用等离子体对印制电路板面处理一下，还可获得一定的粗糙度和高活性的表面，从而提高阻焊膜层的附着力。
In addition, the solder mask coating on printed circuit board, with the plasma treatment, can also obtain certain roughness and high active surface, thus improving the solder coating adhesion.
本文还在此基础上设计了软开关逆变电阻焊电源主电路及控制电路：主电路选用全桥零电压零电流（FB-ZVZCS）阻焊电路，其中包括对主电路参数设计和计算；
Introduced a newly designed inverter resistance welding power on this basis, main circuit's topological structure adopt FB-ZVZCS, and do some work about the parameters design and calculate;
他们掌握电弧，热阻，高能束，和固态焊等。
They master arc, resistance, high-energy beam, and solid-state welding.
他们掌握电弧，热阻，高能束，和固态焊等。
They master arc, resistance, high-energy beam, and solid-state welding.
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