成直角切割管道端口，铰除杂质，去除毛刺，裁好尺寸。
　　Cut tube end square, ream, burr and size.

　　采用砂布或钢丝刷清洗管道和杯口，使其显出光亮的金属表面。
　　Use sand cloth or steel wire brush to clean tube and cup to a bright metal finish.

　　小心得把焊料焊剂涂敷在管道外部和管件杯口内部，使其连接部位表面完全被覆盖。使用焊剂要节省。
　　Apply solder flux to outside of tube and inside of cup of fitting carefully so that surfaces to be joined are completely covered. Use flux sparingly.

　　在将管道和管件套在一起后，用火焰烘烤管件以加热管道和管件焊料杯口直到焊料融化为止。
　　Apply flame to the fitting to heat tube and solder cup of fitting until solder melts when placed at joint of tube and fitting.

　　把火焰移开，在连接部位一或两点位置将焊料注入直到管件端口出现一环焊料为止。正确的焊料使用量大约等于管件直径的1.5倍……DN15管件使用DN20焊料，等等。
　　Remove flame and feed solder into the joint at one or two points until a ring of solder appears at the end of the fitting. The correct amount of solder is approximately equal to 1¹/₂ the diameter of the fitting... ³/₄" (20mm) solder for ¹/₂" fitting, etc.

　　当焊料成型时，用小刷或抹布清除过多的焊料。
　　Remove excess solder with a small brush or wiping cloth while the solder is plastic.