Sinoway offers aluminum & zinc alloy die casting production services in China and serves the world with custom products manufactured through this casting process.
Die casting is a widely used metal casting process in which the molten metal will fill up the molds’ cavities under high pressure. And the molds are usually made from hardened alloy steels. And the castings are mostly made from non-ferrous metals, specifically zinc, copper, aluminum, magnesium, lead, pewter, and tin-based alloys. Depending on the desired cast metals, a hot- or cold-chamber casting machine is available.
Sinoway has developed the die casting process for more than ten years, and we usually take the cold chamber casting procedure. Meanwhile, as a metal casting service supplier in China, we equipped the foundry with advanced testing instruments such as molten metal analyzers, spectrometers, and metallographic microscopes to guarantee the casting metal’s grade and mechanical properties.
And we usually apply the die casting process to manufacture small metal parts but in a large quantity. And the metals we used include Zn, Al, Mg, Cu, Pewter, Lead, and their alloys. Meanwhile, we have our own CNC machining workshop, where we can make the after-casting machining of the casting blanks to meet the customers’ one-stop requirements.
If you have a metal part that needs to be customized, either for prototype or mass production, contact us now and immediately enjoy our services.
What is a die casting process?
Die casting is a precision casting method that uses high pressure to force molten metal into a complex-shaped metal mold. The products made through this process are known as the die casting parts. During this process, we inject the molten alloyed metal, such as Zinc, Aluminum, Copper, and Magnesium, into a set of molds installed on the equipment to form the desired-shape part. When the molten metal gets cooled and solidified, the molds’ ejecting devices will push the workpieces out.
Depending on the type of desired metals, we have two kinds of die casting equipment, the hot-chamber or cold-chamber die casting machine. And because the metal molds’ cost is not cheap, mostly the die casting process is suitable for large-volume productions of small-to-medium-sized castings.
There are four steps involved in the die casting process.
1. Dies and mold making – Design and make out the dies for the mold with alloyed molding steel. And a CNC machining process is involved in this step.
2. Molten metal filling – After installing the mold on the die casting equipment, we need to spray the lubricant, which helps remove the castings, onto the surface of the dies’ cavities. When the equipment starts, the molds are then closed, and molten metal comes injected into the dies under high pressure and fills up the cavities to form the desired shape. The high pressure will remain till the castings get solidified.
3. Ejection of the castings – When the castings get solidified, the ejecting pins on the dies will push the casted workpiece out of the mold, and that is the die casting blanks.
4. Castings shakeout – When the casting blanks get out, there are usually extra materials, including the casting gate, runners, sprues, and flash, so we need the shakeout step to remove these scraps via sawing or grinding processes.
Advantages of the die casting process include
- High accuracy of the dimensions
- Very smooth casting surfaces
- Easy shakeout
- High production rate
- Low labor cost
- Suitable for products with complex shapes or thin walls
Why Choose Sinoway for your metal casting project?
Based on more than 20 years of practice, and overall technical support from our rich-experienced engineering team, Sinoway can supply customers with the most optimal solution to choose the right casting process and material, which expects to save 10% cost for their project. Meanwhile, due to our service team’s quick response, we are always there whenever you need us, saving time for both of us.
Benefits of Sinoway cast foundry include:
- Our production facilities are equipped with testing instruments, including molten iron chemical composition analyzer and spectrometer, and metallographic microscopes.
- 2. Sinoway can manufacture castings made of all kinds of metal alloys. We can meet all your requirements, from prototyping to mass production.
- A technology supporting team that includes both hands-on production engineers coming from the workshop and professional design engineers from modern universities;
- In addition to the die casting production lines, Sinoway also has other metal casting processes, including sand casting, lost foam casting, shell mold casting, and lost wax investment casting. And Sinoway also supplies other metal part production lines such as sheet metal stamping, drop forging, CNC machining, Welding, and surface treatment to meet customers’ demands for one-stop service of manufacturing the whole set of their products.
Quality control policy of Sinoway foundry
Sinoway has established our quality management policy strictly following the ISO 9001 standard in the casting foundry. We require every step of the order execution to be managed and controlled according to this policy to provide customers consistent quality products and services.
Our quality management policy includes the following aspects.
- Molten metal composition analysis before each casting procedure;
- Sample quality inspection, including dimensions, chemical composition, and mechanical properties;
- Mass production casting procedure monitoring;
- Quality inspection after mass production;
- Packaging and transportation inspection;
- All tests must have traceable inspection reports on file.
Win-Win Cooperation
With our specialty in metal parts production, we have been serving many customers engaged in different industries like Home Appliances, Construction, Automobiles, Heavy Equipment, etc.
