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Motor housing alloy and processing process thereof

A motor shell and processing technology, which is applied in the field of alloys for motor shells and its processing technology, can solve the problems of low production efficiency, poor strength and heat resistance, poor plasticity and toughness, etc.

Active Publication Date: 2015-12-09
CIXI LONGSHAN AUTOMOBILE PART
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this regard, the cost of casting is affordable, but the cost of molds, warehouses and logistics management greatly increases the total cost. Not only that, but the alloys in the current technology have problems of poor strength and heat resistance. Suitable molten metals are reported to be suitable as motor housings
2. It is welded by steel. Its main disadvantages are: the appearance is irregular, which makes the product unable to maintain its consistency; the production process is slow and the production efficiency is not high; the noise is loud when used
The flake graphite in gray cast iron severely splits the matrix, and it is easy to cause stress concentration at the sharp corner of graphite, which makes the tensile strength, plasticity and toughness of gray cast iron poor. At the same time, graphite flakes are thick, low in strength and hardness. Easy to cause secondary damage when damage occurs

Method used

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  • Motor housing alloy and processing process thereof
  • Motor housing alloy and processing process thereof
  • Motor housing alloy and processing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Step 1. Prepare an alloy with excellent wear resistance and forging processability, containing Cu: 0.55wt%, Al: 0.15wt%, Ti: 0.55wt%, Nb: 0.025wt%, Sc: 0.15wt%, Co : 0.08wt%, Mn: 0.13wt%, Zn: 0.075wt%, Sm: 0.085wt%, Mg: 0.05wt%, C: <0.02wt%, Si: <0.02wt%, P: <0.02wt%, S: <0.01wt%, N: 0.001-0.01wt%, the balance is Fe and unavoidable impurities.

[0052] The slab with the above chemical composition is subjected to multi-pass rolling at 1200° C. or higher, and the hot rolling is completed in a temperature range of 850° C. or higher and 900° C. or lower. After completion of hot rolling, cool to a temperature range of 600-650° C. or lower at a cooling rate of 300° C. / s or higher after rolling, and then cool to a temperature range of 500° C. or lower at a cooling rate of 80° C. / s. Further, it was cooled to room temperature at a cooling rate of 0.1° C. / second to obtain a hot-rolled steel sheet.

[0053] The hot-rolled steel sheet obtained through the hot-rolling step and the...

Embodiment 2

[0059] Step 1. Prepare an alloy with excellent wear resistance and forging processability, containing Cu: 0.5wt%, Al: 0.2wt%, Ti: 0.5wt%, Nb: 0.04wt%, Sc: 0.15wt%, Co : 0.10wt%, Mn: 0.12wt%, Zn: 0.05wt%, Sm: 0.06wt%, Mg: 0.06wt%, C: <0.02wt%, Si: <0.02wt%, P: <0.02wt%, S: <0.01wt%, N: 0.001-0.01wt%, the balance is Fe and unavoidable impurities.

[0060] The slab with the above chemical composition is subjected to multi-pass rolling at 1200°C or higher, and the hot rolling is completed in a temperature range of 850°C to 900°C. After completion of hot rolling, cool to a temperature range of 600-650° C. or lower at a cooling rate of 300° C. / s or higher after rolling, and then cool to a temperature range of 500° C. or lower at a cooling rate of 80° C. / s. Further, it was cooled to room temperature at a cooling rate of 0.1° C. / second to obtain a hot-rolled steel sheet.

[0061] The hot-rolled steel sheet obtained through the hot-rolling step and the cooling step is subjected to co...

Embodiment 3

[0067] Step 1. Prepare an alloy with excellent wear resistance and forging processability, containing Cu: 0.5wt%, Al: 0.1wt%, Ti: 0.4wt%, Nb: 0.02wt%, Sc: 0.25wt%, Co : 0.12wt%, Mn: 0.1wt%, Zn: 0.04wt%, Sm: 0.08wt%, Mg: 0.05wt%, C: <0.02wt%, Si: <0.02wt%, P: <0.02wt%, S: <0.01wt%, N: 0.001-0.01wt%, the balance is Fe and unavoidable impurities.

[0068] The slab with the above chemical composition is subjected to multi-pass rolling at 1200°C or higher, and the hot rolling is completed in a temperature range of 850°C to 900°C. After completion of hot rolling, cool to a temperature range of 600-650° C. or lower at a cooling rate of 300° C. / s or higher after rolling, and then cool to a temperature range of 500° C. or lower at a cooling rate of 80° C. / s. Further, it was cooled to room temperature at a cooling rate of 0.1° C. / second to obtain a hot-rolled steel sheet.

[0069] The hot-rolled steel sheet obtained through the hot-rolling step and the cooling step is subjected to col...

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Abstract

The invention provides a motor housing alloy and a processing process thereof. The motor housing alloy comprises the following components: 0.3-0.8wt% of Cu, 0.05-0.2wt% of Al, 0.4-0.6wt% of Ti, 0.02-0.05wt% of Nb, 0.1-0.25wt% of Sc, 0.05-0.12wt% of Co, 0.1-0.16wt% of Mn, 0.04-0.12wt% of Zn, 0.05-0.1wt% of Sm, 0.05-0.07wt% of Mg, less than 0.02wt% of C, less than 0.02wt% of Si, less than 0.02wt% of P, less than 0.01wt% of S, 0.001-0.01wt% of N and the balance of Fe. According to the experimental results, the motor housing alloy has good tensile strength and plasticity, and good weather resistance.

Description

technical field [0001] The invention relates to the technical field of motor casings, in particular to an alloy for a motor casing and a processing technology thereof. Background technique [0002] Motor refers to an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction. Its main function is to generate driving torque as a power source for electrical appliances or various machinery. The motor will generate a certain amount of heat during the working process. In order to improve the heat dissipation efficiency of the motor and ensure the normal operation of the motor, a motor casing is generally required. [0003] At present, the general production methods of the motor housing mainly include the following: 1. It is made of cast metal parts, and casting molds and metal casting workshops are required to manufacture cast parts. In this regard, the cost of casting is affordable, but the cost of molds, warehouses and l...

Claims

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Application Information

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IPC IPC(8): C22C38/16C21D8/02
Inventor 金云康
Owner CIXI LONGSHAN AUTOMOBILE PART
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