Differences between 3.3 inch motor aluminum shell type and cast iron motor
3.3 inch motor aluminum shell type and cast iron motor differences, advantages and disadvantages of comparison are far more than these, through the actual work, life, we can find more differences and advantages and disadvantages between them, so as to choose more suitable for their own equipment to use the motor.
What are the pros and cons of 3.3inch motor aluminum shell type and cast iron shell?
3.3 inch motor aluminum shell type usually uses DC to stabilize the motor, and high speed is usually installed in places where it is not very important because the aluminum has to be soft, compared with iron shell, the aluminum shell has light weight, good thermal conductivity, can be die-cast, good plasticity, higher elongation than iron, high price, low hardness. The higher the center height, the higher the motor does not have an aluminum housing because the mechanical strength of aluminum is not enough.
Cast iron motor is more powerful, are installed in some work on the driving force of the place, the environment is also relatively poor place, stability is not as good as aluminum. A small motor aluminum shell has the following considerations:
1. Aluminum has a lower density, which reduces the overall weight of the machine.
2. The thermal conductivity of aluminum is better than that of iron.
3. The strength of aluminum is low, which is convenient for processing and manufacturing, and saves processing costs.
As we know, in the AC motor, the shell is not involved in the motor circuit and magnetic circuit conduction, so there will be no impact on the electrical performance of the motor, only on the mechanical performance.
3.3 inch motor aluminum shell type and cast iron shell motor shell is the difference between cast iron or aluminum?
Shaft height above 315 motors almost no aluminum shell, because of poor mechanical strength. Shaft height of about 80 to 225 motor, both cast iron shell, and aluminum shell. These two materials should have little effect on the overall performance of the motor.
The difference between cast iron and aluminum for motor housings is:
1. Motor shell is cast iron, durable, after the knock, high mechanical strength. Disadvantages: its relatively heavy weight, easy rust, and heat dissipation than aluminum poor.
2. Motor shell is aluminum, beautiful, not easy to rust, easy to process, good heat dissipation performance. But the mechanical strength is poor, the cost is also high, and the corresponding price is also high.3. In electrical performance, whether the motor housing is cast iron or aluminum is the same.