Unlock instant, AI-driven research and patent intelligence for your innovation.

A high starting torque three-phase asynchronous motor rotor material

A starting torque, three-phase asynchronous technology, used in asynchronous induction motors, electrical components, electromechanical devices, etc., can solve the problems of unstable performance, difficult to control components, high cost, and achieve the effect of good mechanical properties and high resistivity

Active Publication Date: 2018-04-24
无锡天宝电机有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the cost of the aluminum alloy materials used in this type of motor rotor is often high, and its alloy ratio and development technology are also different, and the precious metals and other trace elements contained in it are difficult to control, resulting in unstable performance.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high starting torque three-phase asynchronous motor rotor material, the material is mainly composed of AlSi alloy containing 25% Si, obtained through P, RE, Cu and Na modification, the P content is 0.3%, RE selects Ce, The Cu content is 0.5%, the Cu content is 0.1%, and the Na content is 0.4%.

[0024] Melt pure aluminum to 720°C and remove slag, add crystalline silicon, heat up to 100°C higher than the liquidus line, and obtain AlSi alloy; add C 2 Cl 6 Refining, after removing slag, add P, RE, Cu and Na to modify in sequence; then add C 2 Cl 6 After secondary refining, the slag is removed and poured into a metal mold preheated to 300°C to obtain the high starting torque three-phase asynchronous motor rotor material of the present invention.

[0025] After testing, the primary silicon particle size D is reduced to 12μm, and the resistivity ρ 20℃ Reach 8.2μΩ·cm, tensile strength σ b Increased to 210MPa, the elongation δ can reach 5.9%.

Embodiment 2

[0027] A high starting torque three-phase asynchronous motor rotor material, compared with embodiment 1, its modifier is P content is 0.1%, RE selects Ce, content is 1.0%, Cu content is 0.5%, Na content is 0.4% , all the other are identical with embodiment 1.

[0028] After testing, the primary silicon particle size D is reduced to 11 μm, and the resistivity ρ 20℃ Reach 8.15μΩ·cm, tensile strength σ b Increased to 220MPa, the elongation δ can reach 5.9%.

Embodiment 3

[0030] A high starting torque three-phase asynchronous motor rotor material, compared with Example 1, its AlSi alloy Si content is 22%, and the rest is the same as Example 1.

[0031] After testing, the primary silicon particle size D is reduced to 12μm, and the resistivity ρ 20℃ Reach 8.2μΩ·cm, tensile strength σ b Increased to 220MPa, the elongation δ can reach 6.0%.

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
tensile strengthaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-starting-torque three-phase asynchronous motor rotor material. An AlSi alloy serves as the body of the material, and the material is obtained through P, RE, Cu and Na modification. According to the high-starting-torque three-phase asynchronous motor rotor material, components are optimized, high specific resistance and good mechanical performance can be provided, the primary silicon granularity D of the material is reduced to be below 12 microns, the specific resistance Rho can reach the original 8.2 microhm.cm of the AlSi alloy at the temperature of 20 DEG C, the tensile strength Sigmab is improved to be 200 MPa or above, and the elongation delta can reach 5.8% or higher.

Description

technical field [0001] The invention relates to the field of motor materials, in particular to a high starting torque three-phase asynchronous motor rotor material. Background technique [0002] High starting torque three-phase asynchronous motor has the characteristics of high starting torque, small starting current and fast starting, and is widely used in various industries. It works as follows: [0003] When a symmetrical three-phase alternating current is passed into the three-phase stator winding, a rotating magnetic field that rotates clockwise along the inner circle space of the stator and the rotor at a synchronous speed n1 is generated. Since the rotating magnetic field rotates at a speed of n1, the rotor conductor is stationary at the beginning, so the rotor conductor will cut the stator rotating magnetic field to generate an induced electromotive force (the direction of the induced electromotive force is determined by the right-hand rule). Since the two ends of ...

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): C22C21/02
CPCC22C21/02H02K17/12
Inventor 顾振宇
Owner 无锡天宝电机有限公司