Solder powder production device and production method capable of feeding automatically and stably

A kind of production equipment and automatic stabilization technology, which is applied to the solder powder production equipment and production field that can realize automatic and stable feeding, and can solve the problems of reduced flow rate, instability, and alloy segregation of the transported alloy liquid, so as to avoid segregation and good atomization effect of effect

CN108526473APending Publication Date: 2018-09-14云南锡业锡材有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-09-14

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Abstract

The invention relates to a solder powder production device and a production method capable of feeding automatically and stably. The device comprises a melting furnace and a feeding furnace mutually connected through a conveying pipe, and an atomizing barrel connected with the feeding furnace through a feeding pipe, wherein the feeding furnace comprises a feeding furnace body with a furnace cover,a feeding furnace nitrogen input pipe directly inserted to the bottom part of the feeding furnace body from the center of the feeding furnace body, a feeding furnace nitrogenization electromagnetic valve and a feeding furnace bottom part pressure sensor on the feeding furnace nitrogen input pipe, a feeding furnace top part pressure sensor, a feeding furnace exhaust port and a feeding furnace exhaust electromagnetic valve; and the melting furnace comprises a melting furnace body with a furnace cover, a melting furnace nitrogen input pipe directly inserted to the bottom part of the melting furnace body from the center of the melting furnace body, a melting furnace nitrogenization electromagnetic valve and a melting furnace bottom part pressure sensor on the melting furnace nitrogen input pipe, a melting furnace top part pressure sensor, a melting furnace exhaust port and a melting furnace exhaust electromagnetic valve. According to the solder powder production device and the production method capable of feeding automatically and stably provided by the invention, the atomizing barrel can be stably fed controllably at constant speed.
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Description

technical field

[0001] The invention relates to the technical field of welding powder production equipment and production methods. Background technique

[0002] Solder material is an indispensable connection material in the electronics industry. The application of surface mount technology (STM) with solder paste as the main connection material makes the electronic assembly process more efficient and miniaturized. SMT technology has become the mainstream of electronic assembly technology. Solder paste is mainly composed of solder powder and solder paste, of which the weight ratio of solder powder accounts for about 88-90%. Solder powder is one of the most important materials for preparing solder paste. In the production process of solder powder, tin-based alloy melt The atomizing tool head sprayed into the atomizing barrel is atomized. The traditional feeding system is to melt the alloy directly in the melting furnace, and install a conduit at the bottom or side of the meltin...

Examples

Embodiment Construction

[0013] like figure 1 The shown solder powder production equipment capable of automatic and stable feeding includes a melting furnace 3 and a feeding furnace 2 connected to each other through a feeding pipe 12 , and an atomizing barrel 1 connected to the feeding furnace 2 through a feeding pipe 4 . The feeding furnace 2 includes a feeding furnace body 2a with a feeding furnace cover 2b, introduced from the upper part of the feeding furnace body and inserted directly from the center of the feeding furnace body to the feeding furnace nitrogen input pipe at the bottom of the feeding furnace body 2c, the nitrogen filling solenoid valve 2d and the pressure sensor 2e at the bottom of the feeding furnace, which are installed at the inlet end of the nitrogen input pipe of the feeding furnace, are used to control the amount of nitrogen charging, and the pressure sensor at the top of the feeding furnace is installed on the top of the feeding furnace 2h. The exhaust port 2f of the feeding...