Electromagnetic pump for conveying liquid nonferrous metal

Abstract

The invention is suitable for the technical field of liquid nonferrous metal conveying equipment, and provides an electromagnetic pump for conveying liquid nonferrous metal. The electromagnetic pump comprises a power supply, a pulse generator, a pot body, an iron core lamination stack, a guide pipe and a spout. A plurality of electromagnetic windings which equidistantly arranged in the axial direction of the guide pipe are embedded into the iron core lamination stack. The iron core lamination stack and the adjacent electromagnetic winding on the iron core lamination stack form a pushing force unit. Furthermore a same-phase driving pulse is input. After energization, instantaneous magnetic fields with opposite polarities are generated among polar teeth of the iron core lamination stack. A plurality of pushing force units form a pushing force set. Driving pulses with different time sequences are respectively input into the pushing force units in the pushing force set. The pushing force units form a movable magnetic field which changes according to the time sequence from an inlet to an outlet. The electromagnetic pump utilizes an electromagnetic pushing force for pushing the liquid nonferrous metal to move. No movable component such as mechanical rotation component exists, and a problem of pump body movement assembly corrosion is prevented. Furthermore high flowing stability of the molten metal is realized, and speed and flow of the molten metal can be controlled.

Description

technical field [0001] The invention belongs to the technical field of liquid nonferrous metal conveying equipment, in particular to an electromagnetic pump used for pumping liquid nonferrous metal fluid. Background technique [0002] With the development of electronic technology, the soldering technology of electronic circuit boards has gone through several important stages such as manual soldering, wave soldering and flow soldering. In recent years, due to the rapid development of automotive electronics, power electronics, communication equipment and other fields, various types of through-hole components, patch components, power components and various light or heavy loads; high-voltage or low-voltage connectors, radiators Or supporting components, etc. are mixed in large numbers on the PCB board. As the quantity of such work is increasing, the quality requirements are getting higher and higher, and the demand for improving work efficiency is becoming more and more urgent....

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an electromagnetic pump for transporting liquid non-ferrous metals, which aims to solve the problem of fast corrosion of the moving components of the pump body and the problem of using micro mechanical pumps as liquid metal pumping components in the prior art The speed and flow rate of the ejected metal flow are difficult to control, and the stability of the metal flow is poor

Images