What are extrusion applications, Chemical Engineering

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What are its applications?

(i)   Direct extrusion: The billet is placed in a container and forced by the die through a piston.

 (ii)    Indirect extrusion: The extruded part is first forced by the die and then passes by ram stem. The billet is pressed among the container and the die in case of indirect extrusion. In case of direct extrusion the billet is placed among die and the ram.

 (iii) Tube extrusion: The billet is placed inside a container among the die and mandel. The mandel is pressed by ram and the metal is extruded by the die. This process is used for making steel tubes. The billets are heated to about 13000c except low carbon steel tubes which are cold worked.

 

 


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