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 .
Thursday, 30 April 2015
Tuesday, 17 March 2015
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.
Thursday, 22 January 2015
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.
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
Monday, 5 January 2015
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.
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.
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