Manufacturing process of magnesium alloy motor shell

Abstract

The invention discloses a manufacturing process of a magnesium alloy motor shell. A motor shell body is made of magnesium alloy, the magnesium alloy is composed of the following components of, in percentage by weight, 3.0% to 3.8% of Al, 0.4% to 0.9% of Zn, 0.15% to 0.6% of Mn, 0.01% to 0.1% of Si, 0.01% to 0.0 5% of Fe, 0.01% to 0.05% of Cu, 0.001% to 0.005% of Ni, 0.005% to 0.01% of Be, 0.6% to0.8% of other trace elements, and the balance Mg. The manufacturing process comprises the following steps of (1), preparing a furnace charge equipment; (2), preheating a crucible; (3), charging and melting; (4), refining; (5), analyzing the grain size; (6), preheating a mold; (7), pouring and solidification; (8), solution treatment; (9), quenching treatment; (10), subzero treatment; and (11), processing and molding. Compared with the prior art, the manufacturing process of the magnesium alloy motor shell has the advantages of large elongation percentage, good thermal conductivity and low machining difficulty.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a manufacturing process of a magnesium alloy motor casing. Background technique [0002] A motor is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction, or converts one form of electrical energy into another form of electrical energy. A motor converts electrical energy into mechanical energy (commonly known as a motor), and a generator converts mechanical energy into electrical energy. The motor is represented by the letter "M" ("D" in the old standard) in the circuit. Its main function is to generate driving torque as a power source for electrical appliances or various machinery. The material often used in the motor casing is aluminum alloy. In recent years, replacing cast iron with aluminum alloy has become the mainstream of casing manufacturing in the small motor industry. Due to the defects of the physica...

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Problems solved by technology

The manufacturing process range of the magnesium alloy motor casing in the prior art is narrow, especially the temperature required for hot extrusion is relatively strict, and the plastic deformation performance is relatively poor, which is not conducive to mechanical forming, resulting in low elongation and thermal conductivity, and increased processing difficulty. Big