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External flow four-opening type pot opening

A pot mouth and peripheral technology, which is applied in the field of outflow four-open pot mouth, can solve the problems of low work efficiency, unsuitable for large-scale batch processing, and easy to form virtual welding of contacts, and achieves the effect of ensuring adequacy and firmness.

Inactive Publication Date: 2010-06-30
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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  • External flow four-opening type pot opening
  • External flow four-opening type pot opening
  • External flow four-opening type pot opening

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] like figure 1 Shown is an outflow four-open spout, the spout has a "back" structure, a part shielding hole 2 is formed in the middle, and a tin overflow port 1 is provided around the periphery of the spout. The tin overflow opening 1 is a rectangular opening with a depth of 3-6mm.

[0013] like figure 2 As shown, the welding area of ​​the electronic components 3 on the PCBA board 4 is generally ring-shaped, and there are electronic components 3 that need to be soldered and shielded in the middle, and the electronic components 3 that need to be soldered and shielded are formed by using the spout of the structure of the present invention. It is set in the shielding hole 2 of the part, and the welding part is located in the mouth of the pot. There are no electronic components inside and outside the pot. Electronic components 3 on.

[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...

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Abstract

The invention relates to a tin furnace component used for PCBA board soldering tin, in particular to an eternal flow four-opening type pot opening. A part shielding hole is formed in the middle, a tin overflowing opening is arranged along the periphery of the opening at the outer periphery of the pot opening, and tin overflowing opening is a rectangular notch with the depth between 3 and 6 mm. The invention has a simple structure, can effectively improve the welding efficiency, and is suitable for large-scale automatic production, in addition, an oxide layer of the surface layer of the tin liquid is effectively prevented from being remained on the surface of a PCBA board, and the quality of welding points is ensured.

Description

technical field [0001] The invention relates to a tin furnace part used for PCBA board soldering, in particular to a four-opening spout for outflow. 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 ...

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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