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Plug-in type spout

A plug-in and pot-mouth technology, applied in the field of plug-in tin furnace pot-mouth, can solve the problems of low work efficiency, easy formation of virtual welding of contacts, unsuitable for large-scale batch processing, etc., and achieves the effect of ensuring adequacy and firmness

Inactive Publication Date: 2010-06-30
SUZHOU MINGFU AUTOMATIC SCI & TECH
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  • Abstract
  • Description
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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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Examples

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Embodiment Construction

[0012] Such as figure 1 A plug-in spout is shown, the mouth of the spout is provided with a conical socket 1 , and at least one tin overflow port 2 is provided on the edge of the conical socket 1 . The tin overflow port 2 is a rectangular hole with a depth of 3-4 mm.

[0013] Such as figure 2 As shown, the spout of the present invention is mainly applied to the welding of electronic components 3 with short single-row leads. On the PCBA board 4 , there are no other electronic components 3 outside the single row of leads or they are relatively far away, so that the tin liquid flowing out from the tin overflow port 1 will not flow onto the electronic components 3 .

[0014] When in use, place the PCBA board at a predetermined position above the spout, and keep a certain distance between the plane of the board and the tin outlet of the spout, generally controlled at 2-4mm. The shape of the spout can be determined according to the distribution of the soldering parts of the PCBA...

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Abstract

The invention relates to a tin furnace component for tin soldering of a PCBA, in particular to a plug-in type spout of a tin furnace. A tapered spigot is arranged at the opening part of the spout, and at least one tin overflow hole is arranged at the rim of the tapered spigot. The tin overflow hole is rectangular, and the depth is within 3 to 4mm. The plug-in type spout has the following characteristics: the structure is simple and the welding efficiency can be effectively increased; moreover, the plug-in type spout is suitable for automatic mass production, effectively avoids an oxidation layer of a tin liquid surface layer from being left over on the surface of the PCBA, and ensures the quality of welding points.

Description

technical field [0001] The invention relates to a tin furnace component used for PCBA board soldering, in particular to a plug-in tin furnace pot. 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...

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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