Search This Supplers Products:precision machinery partsmachining partsauto partsspare parts
Please introduce what the centrifugal casting is, and what are the advantages and disadvantages.
Centrifugal casting is a casting method to pour metal liquid into a rotating mold and fill the mold under the action of centrifugal force and solidify.
Classification of centrifugal casting:
According to the position of the rotating axis of the mould in space, the common centrifugal casting can be divided into two kinds.
Horizontal centrifugal casting:
Centrifugal casting when the rotating axis of a mold is in a horizontal state or the angle of the horizontal line is very small (<4).
Vertical centrifugal casting:
The centrifugal casting of the rotating axis of the mold is called vertical centrifugal casting
Centrifugal casting with a large angle between the cast rotating shaft and the horizontal and vertical lines is called inclined shaft centrifugal casting, but it is seldom used.
A) vertical centrifugal casting b) vertical centrifugal casting casting C) horizontal centrifugal casting
1, 16 - casting ladle 2, 14 - mold 3, 13 - liquid metal 4 - belt pulley and 5 - rotating shaft 6 - casting 7 - motor 8 - gating system 8 - cavity cavity, core type - upper type - down - type - pouring trough - end cover.
Advantage：
The core, pouring system and riser can be saved when the hollow rotary body casting is produced by centrifugal casting.
Due to the centrifugal force acting on the liquid metal when rotating, the heavy metal is pushed to the outer wall, while the small gas and slag move to the free surface, resulting in directional solidification from outside to inside, so the feeding condition is good, the microstructure of the casting is compact and the mechanical property is good.
It is easy to cast "double metal" bushes and bushes, such as a thin layer of copper bushing in the steel sleeve, which can save more expensive copper material.
Good filling ability
Eliminate and reduce the consumption of gating systems and risers
Shortcomings and limitations:
In the casting, the free surface is rough, the size error is large and the quality is poor.
Alloys (such as lead bronze) and alloys, such as aluminum and magnesium, which are not suitable for large density segregation