the drilled water-channel, or water line, is the most obvious thermal control feature in a die casting die
the greatest portion of this chapter is devoted to the correct design of the water cooling systems used in die casting die

 بزرگترین بخش این فصل به طراحی صحیح سیستم ها خنک کاری آب به کار رفته در قالب ریخته‌گری تحت فشار اختصاص داده میشود .

however, there are other features of the die that may direct, restrict, or facilitate the flow of heat away from the solidifying casting

These factors often are overlooked

The successful die designer recognizes the influence on heat flow of every component and feature of the die, and utilizes it to control the movement of heat through the die

General description 

The input of heat to the die is intermittent

ورودی گرمابه قالب نوبتی است

Each time a shot is made, a load of heat is transferred into the die

  

هرزمان یک ساچمه ساخته شده است ،یک بارگرمابه سوی قالب انتقال داده شده است

 the transfer of heat within an operating die casting machine and die system is analogous to the variations of hydrostatic pressure and fluid flow withing a system of tanks and pipes, as shown in fig

the large upper tank a represents the metal-melting or holding pot of the machine, the square tank B is the machine frame, the cylindrical tank C is the die, and the intermittent syphon is the injection system

when the sypon is not in operation the only transfer is a slow leak from tank A to tank B

 heat also soaks into the die from the machine as depicted in fig

by the connecting tube from tank B to tank C

when the water in C has built up a certain head of pressure, input to C from the leak is balanced by the output from tank C through the outflow pipe

the system shown in fig 10 represents the machine in opration

 the liquid runs slowly into the syphon until it reaches the height "X" of the syphon tube