Aluminum-based composite conducting bar for motor remanufacturing as well as preparation method and application of aluminum-based composite conducting bar

An aluminum-based composite and remanufacturing technology, which is applied in cable/conductor manufacturing, motors, mechanical equipment, etc., can solve the problem of low production efficiency of the rotor copper bar welding process, difficulty in ensuring stable welding quality, and unfavorable motor rotor remanufacturing, etc. problems, to achieve good electrical conductivity, improved liquid fluidity, and overall machine performance

Active Publication Date: 2021-12-24
内蒙古靓固科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It consumes a lot of energy in the casting process, which is not conducive to the remanufacturing of the motor rotor
However, due to the low production efficiency of the welding process of rotor inserting copper strips, it is difficult to ensure stable welding quality and there are also deficiencies.

Method used

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  • Aluminum-based composite conducting bar for motor remanufacturing as well as preparation method and application of aluminum-based composite conducting bar
  • Aluminum-based composite conducting bar for motor remanufacturing as well as preparation method and application of aluminum-based composite conducting bar
  • Aluminum-based composite conducting bar for motor remanufacturing as well as preparation method and application of aluminum-based composite conducting bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A method for preparing an aluminum-based composite guide bar for remanufacturing of a motor, comprising the following steps:

[0049] Step 1 prepares a graphene-aluminum-based composite liquid, wherein the graphene-aluminum-based composite liquid includes graphene, rare earth materials, boron elements and rhenium elements;

[0050] Step 1 specifically includes:

[0051] Step 1.1 according to the following mass percentages: Cu: 3.6%, Ag: 3.0%, Sn: 3.5%, Be: 0.3%, Mg: 0.6%, Mo: 0.1%, Zn: 0.4%, Sr: 0.05%, Eu: 0.1 %, La: 0.1%, Ca: 0.5%, Re: 0.1%, Gd: 0.1%, Nd: 0.15%, B: 0.07%, and the rest is Al. Weigh the materials containing the above components and their contents; among them, Be , Zn, and Ca satisfy the following relational formula: 1.2%≤Be+Zn+Ca≤1.45%.

[0052] The specific surface area of ​​graphene is 2650m2 / g, and the weight ratio of graphene and aluminum-based composite liquid is 0.45:100.

[0053] Step 1.2 Heat up the melting furnace to 750°C, add the scrap alum...

Embodiment 2

[0058] A method for preparing an aluminum-based composite guide bar for remanufacturing of a motor, comprising the following steps:

[0059] Step 1 prepares a graphene-aluminum-based composite liquid, wherein the graphene-aluminum-based composite liquid includes graphene, rare earth materials, boron elements and rhenium elements;

[0060] Step 1 specifically includes:

[0061] Step 1.1 according to the following mass percentages: Cu: 4.4%, Ag: 4.0%, Sn: 4.5%, Be: 0.45%, Mg: 0.8%, Mo: 0.2%, Zn: 0.45%, Sr: 0.1%, Eu: 0.2 %, La: 0.18%, Ca: 0.55%, Re: 0.3%, Gd: 0.15%, Nd: 0.25%, B: 0.15%, and the rest is Al. Weigh the materials containing the above components and their contents; among them, Be , Zn, and Ca satisfy the following relational formula: 1.2%≤Be+Zn+Ca≤1.45%.

[0062] The specific surface area of ​​graphene is 2650m2 / g, and the weight ratio of graphene and aluminum-based composite liquid is 0.45:100.

[0063] Step 1.2 Heat up the melting furnace to 770°C, add the scrap ...

Embodiment 3

[0068] A method for preparing an aluminum-based composite guide bar for remanufacturing of a motor, comprising the following steps:

[0069] Step 1 prepares a graphene-aluminum-based composite liquid, wherein the graphene-aluminum-based composite liquid includes graphene, rare earth materials, boron elements and rhenium elements;

[0070] Step 1 specifically includes:

[0071] Step 1.1 according to the following mass percentages: Cu: 4.1%, Ag: 3.5%, Sn: 4.0%, Be: 0.38%, Mg: 0.7%, Mo: 0.15%, Zn: 0.42%, Sr: 0.08%, Eu: 0.15 %, La: 0.17%, Ca: 0.53%, Re: 0.2%, Gd: 0.13%, Nd: 0.18%, B: 0.1%, and the rest is Al. Weigh the materials containing the above components and their contents; among them, The mass percentages of Be, Zn and Ca satisfy the following relationship: 1.2%≤Be+Zn+Ca≤1.45%.

[0072] The specific surface area of ​​graphene is 2650m2 / g, and the weight ratio of graphene and aluminum-based composite liquid is 0.45:100.

[0073] Step 1.2 Heat up the melting furnace to 750...

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Abstract

The invention discloses an aluminum-based composite conducting bar for motor remanufacturing and a preparation method and application of the aluminum-based composite conducting bar for motor remanufacturing. The method comprises the steps of preparing graphene aluminum-based composite liquid, wherein the graphene aluminum-based composite liquid comprises graphene, a rare earth material, a boron element and a rhenium element; coating the groove wall of a rotor core with an insulating layer; and preheating the rotor iron core, and casting the graphene aluminum-based composite liquid into a groove of the rotor iron core after preheating to obtain the aluminum-based composite conducting bar. The conducting bar provided by the invention has high conductivity, high thermal conductivity and better toughness, can further improve the efficiency of the motor, and is more favorable for being used in the field of motor remanufacturing.

Description

technical field [0001] The invention relates to a composite guide bar, in particular to an aluminum-based composite guide bar for motor remanufacturing, a preparation method and application thereof. Background technique [0002] Electric motor is the most widely used power output source equipment in the world, and it is also the equipment group with the largest power consumption. Governments and international organizations all over the world recognize that small and medium-sized motors have huge energy-saving potential. [0003] At present, the total power consumption of motors in China has accounted for more than 70% of the total power consumption of industries. Among them, small and medium-sized motors account for more than 70% of the motor market share, but the market share of small and medium-sized high-efficiency motors is only about 11%. If the efficiency of the existing small and medium-sized motors in our country is increased by 2%, the annual power consumption can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/00H02K15/02H02K15/09H02K3/02H02K3/04B22D19/00C22C21/00C22C21/16C22C21/18C22C1/10H01B13/00H01B1/02
CPCH02K15/0012H02K15/024H02K15/0006H02K15/09H02K3/02H02K3/04B22D19/0054B22D19/0081C22C21/003C22C21/16C22C21/18C22C1/1036H01B13/00H01B1/023C22C1/1047Y02T10/64
Inventor 李秋实罗业富何刚李谦任耕北
Owner 内蒙古靓固科技有限责任公司
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