Die Casting’s Blog

Die casting is a method of casting. Forging is a die-casting process in a dedicated die-casting machine on the completion of the forging process. The basic process is: first liquid metal casting low-speed or high-speed filling into the cavity of the mold, a mold cavity of the activities, which along with liquid metal cooling process of forging pressure, not only to eliminate the shrinkage of rough Shrinkage Defects, but also to achieve the internal organization of rough forging state of broken grains. The mechanical properties of rough significantly improved. In addition, the technology produced by the rough, the surface finish to seven (Ra1.6), such as cold extrusion process or machining from the surface, a metallic luster. Therefore, we will be casting forging process known as the “ultimate forming process,” than the “no cutting and less cushion forming process” has taken one step further. There is also a die-casting forging advantage of features, in addition to the traditional casting production materials, it also can be used deformation alloy, forging alloy to produce a very complicated structure of the parts. These alloys brands include: hard aluminum super-hard aluminum alloy, aluminum forging, such as LY11, LY12, 6061,6063, LYC, LD, etc.). These materials tensile strength than ordinary casting alloys nearly doubled, aluminum car wheels, trailers, and so hope to use a higher intensity of impact resistant material production of components, have a more positive significance.

I. Introduction pressure die casting foundry as die-casting, is a liquid alloy will melt into the indoor pressure, high-speed steel mold cavity filling, and alloy liquid under pressure and the solidification of a casting method of casting. Die-casting method different from the other casting is the main characteristics of high-voltage and high-speed. ① liquid metal is under pressure filling the cavity, and at a higher pressure crystallization of solidification, the pressure for the common 15-100 MPa. ② liquid metal at high speed filling cavity, usually in the 10-50 m / s, and some can be more than 80 meters / second (cavity through the gate into the line speed - speed in the gate), the liquid metal Filling the very short time, about 0.01-0.2 seconds (depending on the size of different casting) to fill the cavity. Die-casting machine, die-casting alloy die-casting and casting molds are the three elements of production, one can not do. The so-called die-casting process is organic these three elements to be integrated use of so that it can have steady rhythm and efficiently produce the appearance of good internal quality, size or design of the agreement in line with the requirements of qualified castings, and even high-quality castings. 1, die-casting machines (1) the classification of die casting machine die casting machine press room heated conditions can be divided into the room and pressing cold press room two categories. And the press room and placed the location of different molds, cold chamber die-casting machines can be divided into vertical, horizontal and vertical all three forms of die casting machine.