The superior brazing joint can be obtained by the vacuum brazing.
真空钎焊可得到高质量的钎焊接头。
To make a proper brazing joint, the clearance between the solder cup and the tube should be approximately 0.001" to 0.010" (0.0254mm to 0.254mm).
焊料杯口和管道之间的间隙应该大致在0.0254毫米至0.254毫米之间，才能够获得正确的铜焊连接效果。
When joint is filled, a continuous run of solder or brazing alloy will be visible.
在安装连接部件时，可以看到焊料和钎焊合金继续流动。
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