Soldering flux flow control device and method

A flow control device and flow control technology, which are used in auxiliary devices, manufacturing tools, welding equipment, etc., can solve the problems of low flux flow control accuracy, and achieve the effect of improving control accuracy and solving low control accuracy.

Active Publication Date: 2014-07-23
GREE ELECTRIC APPLIANCES INC
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  • Claims
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a flux flow control devi

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  • Soldering flux flow control device and method
  • Soldering flux flow control device and method
  • Soldering flux flow control device and method

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[0023] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] An embodiment of the invention provide...

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Abstract

The invention discloses a soldering flux flow control device and method. The soldering flux flow control device is connected between a soldering flux storage tank and a soldering flux spray nozzle, and comprises a flow control valve, a flow sensor and a controller. The flow control valve is arranged on a pipeline between the soldering flux storage tank and the soldering flux spray nozzle and used for regulating the flow of soldering flux flowing through the pipeline. The flow sensor is arranged on the pipeline between the soldering flux storage tank and the soldering flux spray nozzle and used for detecting the flow of the soldering flux flowing through the pipeline. The controller is connected with the flow control valve and the flow sensor and used for controlling the flow control valve so as to regulate the flow, detected by the flow sensor, of the soldering flux to be equal to a preset value. By means of the soldering flux flow control device and method, the problem that in the prior art, accuracy of control over the flow of the soldering flux is low is solved, and the effect of improving the accuracy of control over the flow of the soldering flux is achieved.

Description

technical field [0001] The invention relates to the field of wave soldering, in particular to a flux flow control device and method. Background technique [0002] In a no-clean wave soldering process, the amount of flux applied is critical. When the coating amount of flux is insufficient, it will lead to poor soldering such as no tin or less tin; when the coating amount of flux is too large, it is easy to cause electrochemical corrosion and electromigration, which will cause corrosion of solder joints and PCB boards. The circuit function fails, so how to control the amount of flux coating moderately is a very important issue in the no-clean wave soldering process. [0003] In the existing technology, such as figure 1 As shown, the flux is pumped from the flux barrel 20' to the flux storage tank 40' by the pump 30', and the flux flows to the flux nozzle 50' through the pipeline under the action of gravity, and enters the flux nozzle through the control. The flux flow rate ...

Claims

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Application Information

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IPC IPC(8): B23K3/08
CPCB23K3/082
Inventor 蔡小洪陈友桂徐敬伟吴振康曹丹刘洪明王强
Owner GREE ELECTRIC APPLIANCES INC
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