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What Is Zamak Zinc Die Casting Parts

Zinc die casting Parts is referred to as the hot-chamber process. It is the method by which zinc (zamak) is heated under high temperatures and the molten material forced into a zinc die casting mold under high pressure to produce product with a similar shape as the die. As the metal moves through the die, air escapes through the vents. Once the die is full, the high pressure is maintained until it solidifies and the die is separated to release the finished zinc cast. After casting, no further modification is usually required.

Use of Zinc Die Casting

Zinc (zamak) is known for its high strength, accuracy, ductility, ease of casting, high thermal and electrical conductivity, and long life. As such, the zinc die casting is applied in the manufacture of high quality industrial and building materials. Die casting started in the automotive industry and it is still widely used in the manufacture of automotive components. The door locks casing, pulley, and the camshaft are some of the car parts that are made of zinc casting. In the construction industry, zinc die casting is utilized in the manufacture of components such as door knobs, faucets, and roofing. On the other hand, there are many zinc casting machine parts, such as electrical fittings.

Zinc Die Casting Process

Zinc is cast using the hot-chamber process due to its low melting temperatures. Cold chamber process is applied in the casting of metals with high melting temperatures such as the aluminium. The zinc die casting process involves the preparation of the metal, die preparation, and finishing. It commences with the preparation of the die followed by the metal. Notably, the die can be used once or severally depending on the component being manufactured. If it was used before, it should be lubricated to ease the removal of the cast metal. Afterwards, the ejector die half and the cover die half are screwed. The cover die half has a sprue through which the molten metal is injected while the ejector die has ejector pins for removing the castings.
Preparation of the die is followed by melting of the ZA or the ZAMALAK alloy on a furnace. The physical properties of the product dictates the choice of the alloy. Due to metal hardness and strength, the furnace temperature is usually very high. The oxidized parts of the metal are removed at this stage to raise the purity of the finished product. Various chemicals can be added to improve physical properties of the finished alloy.
Once the molten metal is prepared, it is injected into the feed system under high pressure. Most of the systems have several dies for efficiency and mass production. The raised pressure ensures that the molten zinc alloy gets into the mold as fast as possible, no air gets into the molten metal, and the expulsion of the air in the die through the vents. After filling the die, the pressure is raised further until the zinc alloy casting solidifies. The process also involves cooling using water. Then, the two dies are separated and the metal cast is removed. This is followed by the cleaning of the feed system to get rid of the flash. Further finishing can be carried out depending with the final use of the product. The runner that is removed from the final product and the flash are usually recycled.
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A380 Aluminum die casting

A380 Aluminum Die Casting

Since the year of its inception in 1999, CNM Die Casting has consistently endeavoured for achieving sustained excellence in every sphere of its business. Though we started as a supplier of zinc die casting, we have diversified to aluminum die casting, recently. And this has borne rich dividends both in terms of customer satisfaction and company revenue.

Aluminum Die Casting That Provides Quality and Performance

We at CNM Die Casting’s aluminum department have a reputation of offering our customers the exact die casting aluminum specifications. This has been possible due to our state of technology studio, which is equipped with 21 machines ranging in clamping tonnage from 400 to 1200 tons. We cast aluminum castings up to 45 pounds in 360 alloys and up to 13 pounds in 380 alloys. Our aluminum and zinc departments use central melt furnaces and an efficient launder system to transfer molten metal safely and with the consistency of temperature necessary for process control. To complement our launder system, we have fully automated cells which assure shot to shot consistency like:

  • Aluminum Capacity, 10g to 125kg
  • Aluminum Die Cast Dies weight up to 30 Tons
  • Tymac Process Controls
  • Vacuum Assist
  • 4000kg. To 135,000kg. Furnace Capacity
  • ADC 12, 360, 380 Material, or any other special material base on customer requirement

Aluminum Die Casting Equipment That Delivers Excellence

Die casting aluminum is our forte and our cold-chamber die casting machines are typically used to conventionally die cast components using aluminum alloys.

In order to achieve high productivity and good dimensional accuracy, we at GC Die Casting are furnished with

  • 250 Ton Die Casting Machines

  • 400 Ton Die Casting Machines
  • 600 Ton Die Casting Machines
  • 800 Ton Die Casting Machines
  • 1000 Ton Die Casting Machines
  • 1250 Ton Die Casting Machines
  • 1650 Ton Die Casting Machines

A380 aluminum die casting is our speciality that provides an excellent combination of material properties and ease of production.

Aluminum Die Casting Equipment That Generates Cost Effectiveness

Over the last few years, St Clair die casting has offered its services of aluminum die casting components for a wide range of markets. This includes industry sectors like an appliance, automotive, electronics, and instruments etc. And the demand is only growing higher every day, the reason for this burgeoning need is our quality services coupled with prices that are best in the industry. Order with us to believe us! And we assure you long term dependability and quality.

To know more about our products and services, you can call our Customer Service by +86 3388 9978 or send us an email by sales@thediecasting.com

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Die Casting Parts

AlZn10Si8Mg aluminum alloys & AlZn10Si8Mg alloy casting parts

We are a professional die casting company in China, we have produced many die casting parts in AlZn10Si8Mg alloys, if you are looking for aluminum die casting parts in AlZn10Si8Mg alloys, we will be one of your best partners, we do not only produce die casting products in AlZn10Si8Mg alloys, but also may type of aluminum alloys, zinc, and magnesium die castings, contact us to get price.

The thermal treatment of die casting products still represents the best option for the manufacture of die casting parts with high mechanical strength. However, the manufacture of alloy materials suitable for thermal treatment requires special casting measures. AlZn10Si8Mg alloys presented here offer designers specific advantages.

In particular, the AlZn10Si8Mg alloys have a very high 0.2% yield strength. It has been widely used in aviation, aerospace, automotive, machinery manufacturing, marine and chemical industries. With the rapid development of the industrial economy, the demand for aluminum AlZn10Si8Mg alloy welded structural parts is increasing, and the research on the weldability of aluminum alloys is also deepened.

AlZn10Si8Mg alloys have excellent corrosion resistance and are well suited for welding. The high shrinkage of AlZn10Si8Mg alloy in comparison with aluminium – silicone alloys must be taken into account when designing die cast molds.AlZn10Si8Mg alloys & AlSi9Zn6Mg alloys

The requirements for the die casting parts, particularly in consideration of the intended use and the technical feasibility in the casting factory, determine which of the presented alloys should be selected.

As a high pressure die casting manufacturer must focus not only on fulfilling the customer specifications but also the increased customer profits. This includes practical customer advising on site and active identification of customer’s need.

We will fully follow our customer requirement on the alloy material selection, or we will recommend a suitable aluminum alloy base on the customers specification, 100% satisfy our customer is our task, The die casting alloy products includes the primary aluminium die casting, zinc die casting, magnesium die casting, and sand casting, gravity die casting as well as a number of low pressure die casting.

In the production of alloy vehicle components, industrial parts, The main alloy for use in die casting is AlZn10Si8Mg alloys.

AlZn10Si8Mg alloys are self-hardening with these alloy types, the mechanical properties are achieved after storage of approximately 7 to 10 days at room temperature.

The die casting alloy AlZn10Si8Mg achieves high values for tensile strength and offset yield stress, however, the low ductility limits the application range of the alloy.

In one test series, reduction of the zinc content to Approximate 6 per cent by weight of the AlSi9Zn6Mg achieved a significant increase in the ductile yield.

The Chemical composition of these alloy is shown in Table below

AlloySiFeCuMnMgZnTiSr
AlZn10Si8Mg8.5-9.30.40.010.30.3-0.59.0-10.00.10—
AlSi9Zn6Mg8.5-9.30.20.010.30.3-0.56.0-6.70.050.02

Above the table is Chemical composition of AlZn10Si8Mg alloys & AlSi9Zn6Mg alloys

Below Table shows an overview of the achievable mechanical values between AlZn10Si8Mg & AlSi9Zn6Mg.

Alloy [Condition]0,2%-Offset Yield Stress RP0.2 [MPa]Tensile Strength RM [MPa]Ductile Yield A5 [%]
AlZn10Si8Mg230-280300-3502-4
AlSi9Zn6Mg160-210280-3305-9

 

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