Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for repairing the rotor of an automobile motor

A motor rotor and repair method technology, applied in the field of motor components, can solve the problems of high frictional resistance, low motor efficiency, low precision and strength, etc., and achieve the effects of increased efficiency, simplified equipment, and excellent tensile strength performance

Active Publication Date: 2018-08-07
海宁市洛溪实业发展有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing powder metallurgy method can also repair the repaired motor rotor, its accuracy and strength are generally low, and the frictional resistance is large, resulting in low motor efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for repairing the rotor of an automobile motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for repairing an automobile motor rotor, comprising the following steps:

[0020] (1) Mixing materials: take by weight percentage the copper of 2.6%, the silicon of 0.5%, the graphite of 0.7%, the titanium of 0.01%, the boron of 0.05%, the nickel of 2.4%, the manganese of 0.6%, the manganese of 0.3% Molybdenum, the balance is iron and unavoidable impurities, mixed into mixed powder;

[0021] (2) Primary baking: Install the rotor pressing mold on the press, put mixed powder into the cavity of the mold, heat up to 130°C at a heating rate of 2°C / min, press into a primary baking billet, and keep warm for 10h. The pressing pressure is 600MPa;

[0022] (3) Secondary baking: Install the rotor pressing mold on the press, put the first-time baking billet into the mold cavity, heat up to 135°C at a heating rate of 2°C / min, and press it into the second baking Blank, heat preservation 8h, pressing pressure 650MPa;

[0023] (4) Sintering: Sinter the secondary baked compa...

Embodiment 2

[0027] A method for repairing an automobile motor rotor, comprising the following steps:

[0028] (1) Mixing: Weigh 0.1% copper, 0.4% silicon, 0.9% graphite, 0.03% titanium, 0.03% boron, 1.8% nickel, 0.5% manganese, 0.4% Molybdenum, the balance is iron and unavoidable impurities, mixed into mixed powder;

[0029] (2) Primary baking: install the rotor pressing mold on the press, put mixed powder into the cavity of the mold, heat up to 140°C at a heating rate of 2°C / min, press into a primary baking billet, and keep warm for 10h. The pressing pressure is 600MPa;

[0030] (3) Secondary baking: Install the rotor pressing mold on the press, put the primary baking billet into the cavity of the mold, heat up to 130°C at a heating rate of 2°C / min, and press for secondary baking Blank, heat preservation 8h, pressing pressure 680MPa;

[0031] (4) Sintering: Sinter the secondary baked compact in a vacuum pressure sintering furnace to obtain a sintered material, the vacuum degree is les...

Embodiment 3

[0035] A method for repairing an automobile motor rotor, comprising the following steps:

[0036] (1) Mixing materials: take by weight percentage the copper of 1.2%, the silicon of 0.2%, the graphite of 0.5%, the titanium of 0.02%, the boron of 0.01%, the nickel of 2.1%, the manganese of 0.75%, the manganese of 0.2% Molybdenum, the balance is iron and unavoidable impurities, mixed into mixed powder;

[0037] (2) Primary baking: install the rotor pressing mold on the press, put mixed powder into the cavity of the mold, heat up to 135°C at a heating rate of 2°C / min, press into a primary baking billet, and keep warm for 10h. The pressing pressure is 680MPa;

[0038] (3) Secondary baking: Install the rotor pressing mold on the press, put the first-time baking billet into the mold cavity, heat up to 135°C at a heating rate of 2°C / min, and press for the second baking Blank, heat preservation 8h, pressing pressure 640MPa;

[0039] (4) Sintering: sinter the secondary baked compact ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a repair method for an automobile motor rotor and belongs to the technical field of motor part repair. The repair method includes the following steps of material mixing; primary dry-pressing; secondary dry-pressing; sintering; heat treatment; shaping. Graphite is added into raw materials, so that the abrasion resistance and lubricity of the rotor are improved, friction resistance is reduced, the efficiency of a motor is improved, and the density and hardness of the rotor are improved; the motor rotor manufactured from mixed powder in the formula is dense in structure, good in micro-structure, fewer in pore and excellent in structural rigidity, hardness, fatigue resistance and tensile strength; due to the adoption of die pressing, equipment is simplified, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of motor components, in particular to a method for repairing an automobile motor rotor. Background technique [0002] The motor rotor is the rotating part of the motor. The motor is composed of two parts: the rotor and the stator. The motor rotor is divided into a motor rotor and a generator rotor. Although the existing powder metallurgy method can also repair the repaired motor rotor, its precision and strength are generally low, and the frictional resistance is large, resulting in low motor efficiency. Contents of the invention [0003] The object of the present invention is to provide a method for repairing the rotor of an automobile motor. [0004] The purpose of the present invention can be achieved through the following technical solutions: [0005] A method for repairing an automobile motor rotor, comprising the following steps: [0006] (1) Mixing: Weigh 0.1-2.6% copper, 0.2-0.5% silicon, 0.5-0...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22F7/06B22F1/00C22C38/16C22C38/02C22C38/14C22C38/08C22C38/04C22C38/12
CPCB22F1/0003B22F7/062B22F2007/068C22C38/02C22C38/04C22C38/08C22C38/12C22C38/14C22C38/16
Inventor 黄国元
Owner 海宁市洛溪实业发展有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com