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图1是冰箱冷却回路的主要部件装配图。装在冰箱背板上的散热器是在镀铜的卷铁管两侧焊上铁丝而组成的。焊接时如图2,把几根管子并排,上下贴放铁丝,在上下电极间进行电阻点焊。实际制作时,按照散热器宽度在电极间可以同时焊接4～6对,铁丝与管子(预先成型)的送料可以自动进行。注意事项是:1.焊接规范的选择(当电流增大时要防止因压
Figure 1 is the main part of the refrigerator cooling circuit assembly. Radiator mounted on the back of the refrigerator is composed of brazing iron wire on both sides of the copper coil. Welding as shown in Figure 2, the number of tubes side by side, put the wire up and down, between the upper and lower electrode resistance spot welding. The actual production, according to the width of the radiator between the electrodes can be welded at the same time 4 to 6, wire and pipe (pre-shaped) feeding can be carried out automatically. Matters needing attention are: 1. The choice of welding specifications (when the current increases to prevent the pressure