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Preparation method for motor shell aluminum profile, motor shell and motor

A technology for motor casings and aluminum profiles, which is used in metal extrusion control equipment, manufacturing motor generators, casings/covers/supports, etc., can solve the problem of slow extrusion speed, poor extrusion performance and low production efficiency. and other problems, to achieve the effect of fast extrusion molding rate, improved mechanical properties, and high production efficiency

Active Publication Date: 2021-01-15
GUANGDONG JMA ALUMINUM PROFILE FACTORY GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its strength is relatively low, it is difficult to meet the needs of some special occasions; and its extrusion speed is slow, and the production efficiency is low
Moreover, the elongation of this aluminum alloy is only 9.5-12%, and its extrusion performance is poor, which will greatly limit its application in some complex-shaped electrode casings

Method used

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  • Preparation method for motor shell aluminum profile, motor shell and motor
  • Preparation method for motor shell aluminum profile, motor shell and motor
  • Preparation method for motor shell aluminum profile, motor shell and motor

Examples

Experimental program
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Effect test

preparation example Construction

[0045] refer to figure 1 , the invention discloses a method for preparing a motor shell profile, which comprises the following steps:

[0046] S1: Prepare raw materials according to the ratio for use;

[0047] Wherein, the raw material formula in weight percentage is as follows:

[0048] Si 0.6~0.7%, Fe≤0.25%, Cu 0.1~0.2%, Mn≤0.05%, Mg 0.8~0.95%, Cr0.05~0.1%, Zn≤0.1%, Ti≤0.05%, other impurities total≤0.15 %, the balance is aluminum;

[0049] Mg and Si are the main strengthening elements, and Mg and Si can form Mg 2 Si phase, together with the excess silicon phase, strengthens the mechanical properties together. With the Mg in the profile 2 With the increase of Si phase and excess silicon content, the tensile strength, yield strength and quenching sensitivity of the profile increase, but the elongation decreases, and the extrusion performance of the profile becomes worse. For this reason, control Si to be 0.6~0.7%, Mg to be 0.8~0.95%; Preferably, control Si to be 0.6~0.64...

Embodiment 1

[0096] This embodiment provides a method for preparing an aluminum profile of a motor housing, which includes:

[0097] (1) Raw materials are prepared in proportion for subsequent use; wherein, the raw material formula in weight percentage is as follows:

[0098] Si 0.66%, Fe 0.23%, Cu 0.2%, Mn 0.05%, Mg 0.8%, Cr 0.05%, Zn 0.08%, Ti 0.02%, other impurities total 0.1%, and the balance is aluminum;

[0099] (2) Melting and casting raw materials to obtain aluminum ingots;

[0100] (3) Homogenizing the aluminum ingot; wherein, the homogenization temperature is 560° C., and the holding time is 7 hours;

[0101] (4) Extrude the homogenized aluminum ingot to obtain a semi-finished motor casing; wherein, the extrusion temperature is 520°C, and the extrusion speed is 2m / min;

[0102] (5) cooling the semi-finished motor casing;

[0103] (6) Straighten the semi-finished motor casing after cooling; wherein, the straightening amount is 1%;

[0104] (7) Perform aging treatment on the st...

Embodiment 2

[0106] This embodiment provides a method for preparing an aluminum profile of a motor housing, which includes:

[0107] (1) Raw materials are prepared in proportion for subsequent use; wherein, the raw material formula in weight percentage is as follows:

[0108] Si 0.62%, Fe 0.18%, Cu 0.16%, Mn 0.04%, Mg 0.88%, Cr 0.07%, Zn 0.03%, Ti 0.01%, other impurities total 0.12%, the balance is aluminum;

[0109] (2) Melting and casting raw materials to obtain aluminum ingots;

[0110] Specifically, the raw materials are melted at 750-760°C, then refined at 720°C for 20 minutes, and then cast after standing for 20 minutes. The casting temperature is 715°C and the casting speed is 75mm / min;

[0111] (3) homogenizing the aluminum ingot;

[0112] Specifically, the homogenization temperature is 560°C, and the holding time is 7.5 hours; after homogenization, it is first cooled to 195°C with the furnace, and then air-cooled to room temperature;

[0113] (4) Extruding the homogenized alumi...

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Abstract

The invention discloses a preparation method for motor shell aluminum profile. The preparation method comprises the following steps that raw materials are prepared in proportion, an aluminum ingot isobtained after smelting and casting, homogenizing and extruding are conducted on the aluminum ingot to obtain a semi-finished motor shell, and cooling, straightening and aging are conducted on the semi-finished motor shell to obtain the finished motor shell aluminum profile. Correspondingly, the invention further discloses a motor shell which is prepared by adopting the above preparation method. The invention further discloses a motor which comprises the motor shell. By means of the method, the aluminum profile which is low in cost and good in mechanical property and extrusion property can beobtained, and the method can be suitable for production of motor shells in complex shapes; Meanwhile, the extrusion speed can be increased, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of motor casing manufacturing, in particular to a method for preparing an aluminum profile of a motor casing, an electrode casing and a motor. Background technique [0002] The motor is one of the most commonly used driving equipment in the industry. The traditional motor casing is casted by cast iron or aluminum alloy. The production process of these two types is complicated and the manufacturing cost is high. The cast iron motor casing is heavy and inconvenient to use; the material density of the aluminum alloy die-casting motor casing is poor, which is likely to cause casting defects such as pores and sand holes, and the poor surface roughness seriously affects the corrosion resistance of the motor, resulting in Motor life is low. With the advancement of technology, some manufacturers have gradually proposed the technical idea of ​​using the extrusion method to produce the motor housing. In order to rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/02C22F1/047C22F1/02C21D9/00B21C23/00B21C23/14B21C31/00H02K5/06H02K15/14
CPCC22C21/08C22F1/047C21D9/0068C22C1/026C22F1/002C22F1/02B21C23/002B21C23/14B21C31/00H02K15/14H02K5/06
Inventor 满士国邢阳
Owner GUANGDONG JMA ALUMINUM PROFILE FACTORY GRP
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