An open kettle mouth at tin overflow corner
A technology of tin overflow and quarrel, which is applied in the direction of assembling printed circuits with electrical components, can solve the problems of low work efficiency, unsuitable for large-scale batch processing, easy to form false soldering of contacts, etc., and achieve the effect of ensuring sufficiency and firmness
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[0012] As shown in Figure 1, a tin overflow spout is opened at the corner, the shape of the spout is rectangular, and at least one corner of the tin outlet of the spout is provided with a tin overflow mouth 1, and the tin overflow mouth 1 is A rectangular opening with a depth of 2 to 8 mm.
[0013] As shown in Figure 2, the spout of the present invention is mainly applied to the welding of "L"-shaped lead wires. The thick solid line in the figure represents the overflow tin opening. The length of the lead group is determined, and at the same time, other electronic components 3 outside the tin overflow port 1 are taken into consideration to ensure that the tin liquid flowing out from the tin overflow port 1 will not affect other electronic components 3 that do not need to be soldered near the periphery of the pot mouth.
[0014] When in use, place the PCBA board at a predetermined position above the spout, and keep a certain distance between the board plane and the tin outlet o...
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