What is Casting?

Published on February 21 2013

 

Die casting

Die casting is a casting of liquid die forging of a method, a special die casting forging machine to accomplish the process. Its basic technological process is: first metal liquid in low or high speed casting filling into the die cavity of the mold, mold cavity surface activity, it with the liquid metal cooling process pressure forging blank, can eliminate shrinkage defects, and also make the internal organization of forging blank of the crushing grain. Rough comprehensive mechanical properties are improved significantly. Die casting die casting production of the three elements, are indispensable. The die casting process is the three element organic ground be used comprehensively, which can stably rhythmically and efficient production of appearance, internal quality good, size consistent with patterns or the agreement in accordance with the requirements of qualified casting, even high quality casting.



Zinc alloy die castings

Zinc alloy die castings are for high temperature and low temperature (0 ℃) work environment. Zinc alloy at room temperature, have good mechanical properties. But under high temperature tensile strength and low temperature impact properties decreased. Zinc alloy has good fluidity and mechanical properties of. Zinc alloy can be applied to the mechanical strength requirements is not high the castings, such as toys, lamps, accessories, parts electrical parts. Good fluidity and good mechanical properties. Zinc alloy can be applied to the mechanical strength of a certain requirements of the casting, such as auto parts of Zinc alloy die-casting, electrical accessories, machinery parts, electrical components. Zinc alloy can be used for the special requirements of mechanical properties, hardness, and high dimension precision requirement of general machinery parts. Zinc alloy has good mobility and dimensional stability, but with poor fluidity. Zinc alloy die casting can be applied to small size, precision and mechanical strength demanding the workpiece, such as electrical parts. Zinc alloy fluidity is good, and its application in die casting thin wall, large size, high precision, complex shape workpiece, such as electrical components and a box body. Different zinc alloy with different physical and mechanical properties, such as die casting design provides a selection of space.



Aluminum die casting

Aluminum die casting is the use of mechanical equipment liquid aluminum into permanent steel mold, the Aluminum die casting mold after forming a mold, repeated efficient. Alternating hot and cold production cannot occur prematurely aging phenomenon cannot be cracked aluminum water scouring and erosion caused by mold, precision, appearance and other undesirable. Die easily, can be used in the continuous mass production, convenient subsequent processing. Products surface without shrinkage depression, pinhole, dry burning patterns, 400 ℃, 10 minutes blister bulge.



The article is come from:http://www.pressure-die-casting.net/News/62.htm


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