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Stannum export of stannum furnace

A technology of tin outlet and tin furnace, applied in the field of tin outlet of tin furnace, can solve the problems of low work efficiency, easy to form false soldering of joints, unsuitable for large-scale batch processing, etc.

Inactive Publication Date: 2008-05-14
苏州明杰自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 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 outlet with simple structure, which can effectively improve welding efficiency and ensure the quality of welding joints

Method used

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  • Stannum export of stannum furnace

Examples

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Effect test

Embodiment Construction

[0022] The tin outlet of a tin furnace as shown in Figure 1 is set above the tin bath and guides the tin liquid 4 to generate tin waves at the tin outlet to perform soldering operations. There are holes around the tin outlet 1 At least one tin overflow opening 2 in the shape of a rectangular notch has a depth H of 2-8 mm.

[0023] When in use, place the PCBA board 3 at a predetermined position above the tin outlet 1, and keep a certain distance between the board plane and the tin outlet 1, generally controlled at 2-6mm. The shape of the tin outlet 1 can be determined according to the distribution of the soldering parts of the PCBA board 3 , usually the tin outlet 1 is designed in a rectangular shape with a width of 8-10 mm. For the irregular concentrated distribution of welding parts, multiple rectangular tin outlets 1 can be used to form the required welding shape. The tin liquid 4 first keeps a certain liquid level in the tin outlet 1 for 1 to 3 minutes, and preheats the up...

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Abstract

The invention relates to a tin furnace part of PCBA board soldering tin, in particular a tin outlet of a tin furnace. The invention is arranged above a tin bath and leads molten tin produce tin waves at the tin outlet for soldering operation. The periphery of the tin outlet has at least a tin spill-way which is a rectangle opening with a depth H of 2mm to 8mm.The invention has a simple structure and is capable of effectively increasing soldering efficiency and is applicable for large-scale automatic production; furthermore, oxidation layer on molten tin surface layer is effectively prevented from being retained on the surface of the PCBA board, and the quality of soldering spots is ensured.

Description

technical field [0001] The invention relates to a tin furnace component used for PCBA board soldering, in particular to a tin outlet of the tin furnace. Background technique [0002] As we all know, soldering technology has gone through several stages such as manual soldering, dip soldering, wave soldering, reflow soldering, crimp-free soldering, perforated reflow soldering, selective point-to-point wave soldering, etc. The birth of each soldering technology is undoubtedly to adapt to different produced by the demands of the times. With the rapid development of science and technology, the innovation of production technology is also emerging one after another. However, despite this, the soldering problem of mixed-assembled PCBA boards has not yet found an effective solution. This problem has become an insurmountable problem in the electronics manufacturing industry. The bottleneck has aroused great concern of the electronics manufacturing industry. Although crimping without...

Claims

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Application Information

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IPC IPC(8): H05K3/46
Inventor 严仕兴
Owner 苏州明杰自动化科技有限公司
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