when the metal transition occurs from hot molten state to cold state then its volume get reduce by the evulutaion of heat due to metal solidification and it shrins so its remedy is that fill the molten metal slowly & properly & fill it upto sprue so that when it shrinks the molten metal from sprue move down & fill the casting properly
it is that length in which steel completely solidify in continuous casting process
these consist of a single wood frame outlining the shape of of the casting .this type of pattern is used for large casting ,required in small number.
In sand mold casting the molten metal is poured in to the mold cavity , while in pressure die casting the molten metal is forced under high pressure in to the cavity. The sand casting process is used for small batch production where pressure die casting is used for mass production.
embedding is the process of casting the tissues in paraffin wax and allowing them to facilitate cutting sections. this process is done by using the embedding machine.
ultrasonic vibrations
Die casting.
The die casting process is used in many applications. Automotive parts are made using die casting, as well as Lighting, Electronics, Aircraft, Boats, Hardware, Speakers, Appliances, and many others. Die Casting is a metal injection process.
in details
It is process of making Alu. zinc component die. and material flows in die by Gravity force only no external pressure applied as Pressure Die Casting. Gravity casting is the liquid metal in the Earth's gravity into the casting process, also known as gravity pouring casting. The generalized gravity casting include sand casting, metal casting, investment casting, lost foam casting, clay mold casting; narrow-defined gravity casting refers to the metal casting. uses the force of gravity, to fill a permanent mold, or die, with molten material. It does not use the high-pressure method to form the casting. It will ensure that there will not be any clusters formed during this gravity casting process. The method has advantages like cost effective, good quality, and process control over other casting techniques.
Sand casting is used for molding metal shapes and objects. The reason this is called sand casting is because sand is used as a mold. Sand casting is favored by most metal manufacturers because the process of sand casting is very cheap.
The process of casting a ballot during an election is officially called voting.
tempering process n casting process
The act, process, or art of casting metals., The buildings and works for casting metals.
Casting is the process of pouring liquid metal into a mold. The metal cools and takes the shape of the mold.
This process is known as casting. Iron in particular is often cast to make objects.
Casting is a manufacturing process by which a liquid material is (usually) poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solid casting is then ejected or broken out to complete the process.
Type-casting.