Die Casting Technology

There are three main forms of mold failure

1 thermal fatigue crack damage failure

Thermal fatigue cracking failure of die casting production, mold repeatedly stimulated cooling and heating effect, the molding surface and internal deformation are involved, and the repeated cycles of thermal stress, leading to tissue structure of two injuries and loss of toughness, causing cracks appeared, and continue to expand, once a crack expanding, and molten metal liquid impact, coupled with repeated mechanical stress crack accelerated expansion. Therefore, on one hand, die casting mold must be fully preheated starting. In addition, in the production of the die casting die in must be kept in a certain temperature range, so as to avoid the early cracking. At the same time, to ensure the mold production and manufacturing of internal no problem. Because of the practical production, the majority of the ineffectiveness of the die thermal fatigue cracking.

2 invalidity

Fracture failure of the shot under the action of force, die in the weak point of crack, especially the molding surface scribing traces or electric machining marks are not polished optically, or molded clear corner will appear first fine crack, when the grain boundary exists brittle phase or coarse grains, which is easy to break. And brittle fracture crack growth quickly, the mould invalidity is very dangerous factors. Therefore, on one hand where mold surface scratches, electric machining marks must be polished light, Zinc Die Casting even when it is in the gating system position, must also be polished. Additional requirements by use of the mold material of high strength, good plasticity, impact toughness and fracture toughness were good.

3 corrosion failure

Molten failure previously said, conventional die casting alloy zinc alloy, aluminum alloy, magnesium alloy and copper alloy, but also pure aluminum die-casting, Zn, Al, Mg is the more active metal elements, they and the die materials has the good affinity, especially Al easy to bite mold. When the mold hardness is high, then the corrosion resistance is better, and the molding surface if the soft point, then on the corrosion resistance of adverse.

The die failure of many factors, both external factors (for example, whether the mold casting temperature preheating, water paint spraying quantity, die casting machine, die size matching tonnage, high-pressure gate speed too fast, cooling water open and die-casting production synchronization, casting materials and components, the discretion of Fe the casting dimension shape, size, wall thickness of coating type, etc. ). There are internal ( cases of mold material metallurgical quality, blank forging process, the mold structure and the rationality of the design of gating system, the rationality of the design, mold machine ( EDM ) generated during the processing of internal stress, the mold heat treatment technology, including a variety of matching precision and smoothness requirements ). Die if the early failure, need to find out what the internal or external, for future improvement. But in actual production, corrosion is only die locally, cases of gate directly flushing part ( core, cavity) prone to corrosion phenomenon, and the hardness is easy to appear soft aluminum die casting alloys adhesive die.

Die Casting Parts

Die Casting Parts

We are the leading supplier of aluminum die casting and zinc alloy die casting in China. Meanwhile, the auto parts is one of main products we offer. These automobile part varying from 10 gram to 200 gram are mostly used as the auto air conditioner parts and parts of radiator devices.

There are many type of die casting parts on the world, below are some die casting products which we are manufacturing

Auto Parts

All our auto parts are finished on the 138-ton and 160-ton die casting machines through the surface treatments of acid washing and vibratory mulling. We have got the certificate of ISO9001:2000 quality management system, and develop , produce, & sale the sound aluminum die castings, magnesium die casting and zinc alloy die castings with our experience and advanced technologies according to the ISO9001: 2000 quality management system.Aluminium die casting
GC auto parts possess smooth surfaces, high precision and exact dimensions. We can produce all aluminum die castings and zinc alloy die castings including auto parts according to customers’ design drawings, samples and technology requirements. All these auto parts are equipped with complete inspecting methods and quality guaranty to make sure the flawless products.
All aluminum die castings and zinc alloy die castings are found in good market conditions globally.

Industrial Radiator Accessories

Industrial Radiator Accessories varying from 1.5kg to 6kg are mainly applied on the industrial facilities e.g. all kinds of transducers. Our company owns all types of production facilities and supporting equipment such as aluminum die castings and zinc alloy die castings. Our industrial radiator accessories are produced on the 630-ton and 280-ton die casting machines.
Industrial radiator accessories are treated by abrasive blasting and cleaning process as well as some complex mechanical processes. So these industrial radiator accessories we offered are characterized by the finish machining and sound quality.
With at least 30 years’ manufacturing experience of aluminum die casting and zinc alloy die casting and due to the seized technologies and application of new technologies, GC Non- ferrous Metals Foundry has been the leader in die casting industry. We are sure we can provide our clients with the desired aluminum die castings and zinc alloy die castings.

Medical Fitness Machinery Components

Medical Fitness Machinery Components are mainly applied on the wheel chairs for handicapped and massage chairs. The series medical fitness machinery components include footrests, armrests, handles, and rackets, etc. Most of these medical fitness machinery components are exported to the United States and have won the good market for the sound performance and reliable quality.
Footrests are finished on the 630 tonnage die casting machine and are featured by the smooth surface and certain weight capacity. This series of medical fitness machinery components are treated by the plastic coating so as to form original patterns and improve the properties of long durability, water resistance, and strength, etc. Some of footrests can be mounted with rubber mat according to customers’ requirements.
Armrests and handles are manufactured on 280 tonnage die casting machine. This series medical fitness machinery components are sound aluminum die castings and zinc alloy die castings. These armrests and handles have smooth surface and reliable performance for the treatment of shot blasting and lacquer coating.
Rackets used as the parts on medical machinery are produced on 160-ton die casting machine. They are featured by sooth surface and good reliability. All our aluminum die castings and zinc alloy die castings including these medical fitness machinery components are consisted with the ISO9001 standard.

Industrial Radiator Accessories

Industrial Radiator Accessories varying from 1.5kg to 6kg are mainly applied on the industrial facilities e.g. all kinds of transducers. Our company owns all types of production facilities and supporting equipment such as aluminum die castings and zinc alloy die castings. Our industrial radiator accessories are produced on the 630-ton and 280-ton die casting machines.
Industrial radiator accessories are treated by abrasive blasting and cleaning process as well as some complex mechanical processes. So these industrial radiator accessories we offered are characterized by the finish machining and sound quality.
With at least 30 years’ manufacturing experience of aluminum die casting and zinc alloy die casting and due to the seized technologies and application of new technologies, GC Non- ferrous Metals Foundry has been the leader in die casting industry. We are sure we can provide our clients with the desired aluminum die castings and zinc alloy die castings.

Motor Shell, Motor Parts

According to the provided design drawings, we can manufacture various motor shell parts/fittings from the weight of 2.5 kg to 4 kg. We have the advanced production facilities of aluminum die castings and zinc alloy die castings, which include 6 automatic die casting machines. All our motor shells are finished on the 630-tonnage die casting machines. The die casting facilities are also equipped with CNC machines, processing centre, milling machines, drilling machines and abrasive blasting machine, vibratory mullers, etc.
Surfaces of motor shells and motor fittings are treated by the abrasive blasting, shot blasting and processed on the milling machine, drilling machine. All our die casting products such as aluminum die castings and zinc ally die castings are produced by progressive technologies according to program files.
We take every manufacturing stage and details into account, which make the sound quality motor shell and fillings/parts. Many of our motor shell and fillings/parts are exported to Europe and have set good markets for a long times because of their firm and long service life, pretty look and free-air vent.

Other Die Cast Metal Parts

Except Surface Electroplating and Coating Products, Motor Shell and Parts, Industrial Radiator Accessories, Automobile Parts , Medical Fitness Machinery Components, we also supply other Die Cast Parts, Aluminum die castings and zinc alloy die castings, which include:
1) Motor box: manufactured on the 280-ton die casting machine and some processes are finished in the processing center. It is featured by exact dimension.
2) Motor fittings/parts: manufactured on the 160-ton die casting machine and some processes are finished in the processing center. It is featured by exact dimension and free-air vent.
3) Various Die-cast flange fittings: manufactured on the 160-ton die casting machine and finished on CNC machine. It is Zinc alloy die castingfeatured by exact dimension and free-air vent.
4) Flow meter: manufactured on the 630-ton die casting machine. Complex structure, anti-high temperature and leakage resistance.
5) Grease gun brackets: manufactured on the 630-tondie casting machine. Complex structure, large projection area, strong and durable.
6) Belt pulley: manufactured on the 280-ton die casting machine. The trough of turntable is treated precisely on machine tools which need high requirements of dimension precision.
7) Hydraulic pressure filter: manufactured on the 630 and 280-ton die casting machine. With complex structure, exact dimension, certain requirement of pressure resistance.
These die casting products mentioned above are parts of our die casts. We are sure to offer all kinds of aluminum die castings and zinc alloy die castings and after-sale services for our customers.