Test object: die-casting aluminum rotor of washing machine
Test Items: the quantity of broken bar, thin bar, the total number of conducting bar, the slot deviation angle

2. Rotor introduction

The quality of squirrel-cage rotor affects the motor performance, and the rotor aluminum quality depends on the technology parameter, rotor iron core, the model preheating temperature, aluminum liquid temperature and chemical material.
The problem of broken bar, thin bar and porosity are universal in the production line, which can lead to increasing the resistance, consumption and slip ratio, low efficiency and high temperature.

3. Technical specification

Test object	Die-casting aluminum rotor of washing machine
Station	Single
Test item	Number of conducting bar, number of thin bar, number of broken bar, and the slot deviation angle
Display mode	19” LCD
Judgement parameter	The quantity of bar, the comprehensive value, maximum value, minimum value
Test range	Outer diameter: 20-100mm Inner diameter:4-29mm Lamination thickness :100mm (max)
Fixture mode	Auto / manual (optional)
Working ambient	Temperature 0~40℃,humility ≤90%RH

4. Defection analysis of die-casting aluminum rotor

Sand hole: the die-casting rotor was filled with sand hole internally or surfacely.

Porosity: all size of porosity locates everywhere in the inner or surface of the die-casting model, the porosity is a spherical or almost spherical hole with smooth wall generally.

Washing Machine Motor Rotor Testing Machine With 19 Inch LCD Monitor

Motor Testing Machine