Col Copper
Col Copper
Some components related to die casting
Die casting is the process of forcing molten metal under high pressure into Mold cavities. The idea of the casting equipment was firstly come up with in 1838 for the consideration producing movable type for the printing industry. Then, with some prominent types of equipment in the publishing industry, various type of casting developed to make contributions. And other applications grew rapidly, with die casting facilitating the growth of consumer goods and appliances by making affordable the production of intricate parts in high volumes.
Not to introduce the producing process briefly, this article is going to give something on other necessary parts. The materials for die castings are specifically zinc, copper, aluminium, magnesium, lead, pewter and tin based alloys, non-ferrous metals as well. In fact, the ferrous metal is not a good choice. During the producing process, there are some developed methods to ensuring precise surface quality and dimensional consistency. They are generally suited for applications where a large quantity of small to medium sized parts are needed. Though some injection-Molded Plastic Parts have replaced some die-castings of being cheaper and lighter within these years, the hardness and strength still tend to be competitive advantages.
The mold is important as to produce various sizes. But a die's life is most prominently limited by wear or erosion, which is strongly dependent on the temperature of the molten metal. So do choose the proper metal for the specific dies. What else, it is indeed to operate carefully. Otherwise, the loss would outweigh the gain.
Apart from mold with various sizes, the equipment machines are also important in producing. Basically, there are two major types: hot-chamber machines and cols-chamber machines. The previous one relies on a pool of molten metal to feed the die which equals to the mold. It specifies for the system which include fast cycle times (approximately 15 cycles a minute) and the convenience of melting the metal in the casting machine. And the point that high-melting point metals cannot be utilized and aluminium cannot be used in system should be driven upon much more attentions. However, if some machines include aluminium, zinc alloys with a large composition of aluminium, magnesium and copper and works by firstly melting the material in a separate furnace, a precise amount of molten metal is transported to the cold-chamber machine then.
In words, with the development of modernization, it is wise to update the manufacturing procedure, I suppose. And the market expects die casting with high competence.
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