Magnetic Field Generating System in Magnetic Induction Free Abrasive Wire Saw Cutting

Abstract

The invention provides a magnetic field production system applied to magnetic-induction free abrasive wire saw cutting. The magnetic field production system comprises magnetic poles, electromagnetic coils, permanent magnets and a magnet yoke, wherein a processing station for the magnetic-induction free abrasive wire saw cutting is formed between the upper ends of the two magnetic poles; the electromagnetic coils are mounted at the upper ends of the magnetic poles respectively, and relative surfaces of the two electromagnetic coils are in opposite polarity; the lower ends of the magnetic poles are connected with the permanent magnets, and the polarity of the upper part of each permanent magnet is opposite to that of the surface, far away from the other electromagnetic coil, of the electromagnetic coil of the corresponding magnetic pole; the two ends of the magnetic yoke are connected with the permanent magnets respectively. Four areas of high-gradient magnetic fields can be formed on the periphery of a wire saw under the assistance of outside uniform magnetic fields, and the cutting efficiency is improved, and the slit width is reduced.

Description

technical field [0001] The invention relates to a magnetic field generating system, more specifically to a uniform magnetic field generating system used in magnetic induction free abrasive wire saw cutting. Background technique [0002] Primary energy sources such as oil and coal are gradually depleted, and environmental pollution is intensified, resulting in a sharp increase in demand for solar energy utilization. Crystalline silicon solar cells are dominant in the photovoltaic industry. These factors lead to a sharp increase in the demand for silicon wafers, especially due to the increase in the size of silicon crystals, the increase in the length and depth of the kerf, and the difficulty of abrasive grains entering the long and In deep kerfs, the cutting ability of the free abrasive wire saw is reduced. Magnetic induction free abrasive wire saw cutting is to place the ferromagnetic saw wire vertically in a uniform magnetic field, forming four areas around the saw wire, w...

AI Technical Summary

Problems solved by technology

Crystalline silicon solar cells are dominant in the photovoltaic industry. These factors have led to a sharp increase in the demand for silicon wafers, especially due to the increase in the size of silicon crystals, the increase in the length and depth of the slit, and the difficulty of abrasive grains entering the long and In deep kerfs, the cutting ability of the loose abrasive wire is reduced

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