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One-side single open kettle mouth with tin overflow mouth length

A technology of overflowing tin and one side, which is applied in the direction of assembling printed circuits with electrical components, can solve the problems of low work efficiency, easy formation of joints, unsuitable for large-scale batch processing, etc., and achieve the effect of ensuring sufficiency and firmness

Inactive Publication Date: 2008-03-26
SUZHOU MINGFU AUTOMATIC SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the above-mentioned various solders, especially when automatic selective point-to-point wave soldering is used to weld PCBA boards with dense solder joints, the work efficiency is low, it is not suitable for large-scale batch processing, and the joints are easy to form virtual soldering. The invention provides a tin furnace spout with simple structure, which can effectively improve welding efficiency and ensure the quality of welding joints

Method used

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  • One-side single open kettle mouth with tin overflow mouth length

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Embodiment Construction

[0012] As shown in Figure 1, a single-opening spout with a long tin overflow spout, the spout is rectangular in shape, and at least one tin overflow spout 1 is arranged on the long side of one of the sides of the rectangle. The tin opening 1 is a rectangular opening with a depth of 2-8 mm.

[0013] As shown in FIG. 2 , the spout of the present invention is mainly applied to the welding of electronic components 3 with long single-row leads. According to the distribution of the lead wires to be welded on the PCBA board 2 and the distribution of the electronic components 3 near the spout, the overflow tin opening 1 on the long side of the spout is reasonably set: for the welding of continuous long single-row leads, the pots at the corresponding positions A long tin overflow port 1 is provided on the mouth, and for the welding of discontinuously arranged single-row leads, a plurality of overflow tin ports 1 are intermittently provided on the pot mouth at the corresponding position...

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Abstract

The invention relates to a tin furnace component used to PCBA board soldering tin, in particular to a tin furnace kettle orifice. The kettle orifice has a rectangular shape, at least one tin overflow outlet is arranged on a long edge of the rectangle edges, the tin overflow outlet is a rectangular opening, the deepness is 2-8mm. The invention has a simple structure, can improve the soldering efficiency, is suitable for mass automatic production, in addition, effectively prevents an oxide layer of the tin liquid surface from remaining on the PCBA board, assures the welding joint quality.

Description

technical field [0001] The invention relates to a tin furnace component used for PCBA board soldering, in particular to a tin furnace spout. Background technique [0002] The usual wave soldering is usually manually operated, and the production efficiency is relatively low. For PCBA boards that require dense soldering points, this soldering method is even more insufficient. In addition, because the tin outlet is too small (generally 2 mm long), it will bring Tin slag blocks the mouth of the pot, which leads to a large area of ​​false soldering; for PCBA boards with denser solder joints, there are also pot mouth structures, but the usual tin furnace pot mouth is designed as a flat mouth, in order to realize PCBA board Soldering operation generally needs to keep a distance between the PCBA board and the spout. On the one hand, it is ensured that the tin liquid sprayed from the spout can solder the electrical components on the PCBA board above, and at the same time, it is guara...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/34
Inventor 庄春明
Owner SUZHOU MINGFU AUTOMATIC SCI & TECH
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