Aluminum Die Casting Auto Parts

Quick Details
Name: Aluminum die casting auto parts
Place of Origin: Zhejiang,China (Mainland)
Brand Name: DONGRUN
Application: For automobiles
Process: Aluminum Die Casting
Weight: According to customers requirement
Tolerance: /-0.05mm

DONGRUN CASTING is a professional company manufacturing aluminum die casting auto parts, the products including gear box, charge air cooler tank, engine blocks, cylinder heads, Spline, Brake system, housing, exhaust pipe, etc. We use CNC and milling machines to meet different needs of various machining requirement. And our excellent quality control system can guarantee the precision and quality of our auto parts. Besides the aluminum die casting, we can offer another two types of molds, the sand casting and permanent mold casting. With 17years experience in aluminum casting, we can offer you the most suitable products.
For more detailed information, please email us dongrun@dongruncasting.com .

Customized Aluminum Sand Casting

The History of Aluminum Sand Casting in Dongrun

Aluminum sand casting is traditional casting process in China, it is major inventions of ancientChina, it is important as China's four great inventions. The sand cast process originated in the Southern and Northern Dynasties, about 1600 years ago.

Our aluminum foundry is set up in 1995 year. First, we only have green sand casting process, and then we built resin sand casting line in 2000 year. Now we have five production lines for large aluminum green sand casting jobs up to 500kg/piece and 30 platforms for smaller aluminum alloy castings. Meanwhile, we have one production line for resin sand casting. We are leading in China foundries inZhejiang province. There is green sand casting process for sand casting manufacturer, but we have two process.

The Introduction of Sand Casting

Sand casting is a kind of traditional mould casting process that uses the sand as the main molding materials. Generally we use the gravity casting, but if there are special requirements, we can also use the low pressure casting, centrifugal sand casting as long as suitable. The application of sand casting is very wide; no matter small pieces, large pieces, simple pieces, and complex parts, or single or large quantities, this mould casting process all can be used.

Preventive Maintenance For CNC Machining Center

People usually do some preventive maintenance for CNC machining center. Their purpose is to reduce the failure rate. The main working includes personnel arrangement, building regulations file and daily maintenance.

Arrange workers to each CNC machine. Some are responsible for operating, some are focused on technology or repair. All workers should improve their own technical level constantly.

Formulating operation rules according to the detail performance of each CNC machine and processing object. Build work and repair archives and mangers ought to check, review and improvement.

In fact, we should pay more attention to daily maintenance. At first, create daily maintenance plan to each CNC machine repair. That must includes lubrication of the transmission system, temperature control, the balance system, cooling system and so on.

Sometimes the CNC machine has been unused for a long time. Every motion segment of machine exist dust, and even has been rust. These all will have efffect on driving performance and precision of the machine tool. One CNC machine is composed by a lot of electronic components. Their service life and performance are in great discreteness. At the first year, they  are in running stage. The second stage is effective life stage. During this second stage, machine can give full play to efficiency. With resonable using and good daily maintenance, machine could running in normal more than five years. The final stage is aging stage. The system life almost step into the ending. Certainly the electrical hardware failure will be increased gradually.

Article From: http://www.dongruncasting.com/ns_Preventive%20Maintenance%20For%20CNC%20Machining%20Center_618.htm

Aluminum Alloy Casting Properties

Aluminum alloy casting properties and chemical composition are closely related. Al-Si alloy is near the eutectic composition, its casting properties is best. On the contrary, Al-Cu alloy is far away from the eutectic composition. Its solidification temperature range is big. So it has bad casting properties.

Aluminum alloy is very easy to be aspirated and oxidation. So the gating system must ensure that the aluminum liquid flowing quickly and smoothly which could avoid stirring. Each kind of casting method is fit for aluminum alloy casting. You can choose sand casting method while the production is in less amount. Low pressure casting is only fit for water pressure casting which needs high dense. Pressure casting can apply to the small and complex one who with thin wall.

There are many kinds of aluminum alloy melting furnace. In general, people like to use coke crucible furnace and resistance crucible furnace. Besides induction furnace is also used in smelting work. The alloy structure is much more complex than the pure metal. Because the alloy is composed by two or more kinds elements. The interaction between elements can form a variety of different phase.

What Have Effects On Pump Casting Quality

There are many factors that have effect on pump casting quality. Such as process operation, casting process and raw materials quality. The casting material should own good quality and reach the relevant standard. Such as metal charge and refractory material, fuel and flux, modifier and casting sand, sand binder, coating materials and so on.

If you use some material or product which are in bad quality will make the casting produce blowhole, slag, sand sticking and other defects. That has an influence on the appearance quality and internal quality. What’s more, it may lead to casting scrap. So it must satisfy the relevant standard to process. The geometry and size of castings is determined by working conditions and metal material while designing process for casting. Certainly don’t forget to ensure that the product designing is reasonable.

However you had better to reduce metal consumption in casting process. Reducing the cutting amount can not only saving metal, but also bring a lot of benefits. While designing the structure, you can choose precision casting method to reduce cutting amount, such as pressure die casting, investment casting. On the other hand, you can set a groove on the processing surface.

Details Effects Casting Profit

Casting is regarded as a traditional metal forming industry. With the development of technology, casting is fusion of other sectors of the materials and technology gradually. Certainly it is also in the transformation and growth. Future raw material includes pig iron, scrap steel and iron liquid. The iron liquid is formed through a series of actions in the smelting process. In the aspect of shape manufacturing, resin, steel and other materials will replace the traditional wood. We can insert different kinds of pipes in the casting if it is necessary. So the casting structure will be more reasonable. These are the development trend and direction of the large castings in future. At the same time, it brings important influence on saving material.

In the actual production, preparation corresponding process with structure characteristic of each casting. Large casting types mainly include elongated, round and high-Large. For example, elongated beam and bed can prevent the casting deformation.

Improving quality is the best way to save energy and material. There are many casting processes and effect factor. But the quality controlling is very difficult, especially for large casting. No matter the tooling, molding process or melting, they all have high requirements. Every detail needs to be done well. Good quality of the molten iron is the key to producing successfully.

Safe Operation Of CNC Machining

With the development of technology, CNC machining technology application not only bring revolutionary change to traditional manufacturing industry, but also make manufacturing industry to be a symbol of industrialization. As we all known, recent years the CNC machining technology has been widely used more and more. We must pay attention to operating the machine tool safety and maintenance carefully.

At first, operator who use the machine tool should own good comprehensive quality. Certainly it is necessary to train them. Secondly, there should be a good working environment for CNC machine tool. The machine tool can no be shining with the sunlight directly. Besides the environment should keep clean, dry, constant temperature and without vibration.


No matter which type of the CNC machine tool is, they all have their own a set of operating rules. This can ensure operator safety. What’s more, this can also ensure equipment safety and good product quality. So operator must obey the rule and operate correctly. If you use the CNC machine tool first time, please let it idle about ten minutes. At the same time, operator should be more careful while boot and shutdown.