Tag Archives: Die Casting Alloys

Die Casting Processes with the Use of Zinc Alloy

Die Casting Processes with the Use of Zinc Alloy. Die casting is the process by which molten ferrous metal, e.g., zinc, magnesium, copper, lead, tin, aluminum, etc., are molded into cavities and placed under pressure to form. The method of die casting is ideal if the application needed is in large quantity and should be well-detailed and has fine quality. Zinc is a non-ferrous metal that is popularly used for die casting. This is due to the fact that zinc alloys have many characteristics that far exceed other metals. Zinc alloys have high strength and hardness, has high thermal and electrical conductivity, low cost, good finishing characteristics, outstanding fluidity, and excellent corrosion resistance among others.

In the zinc die casting process, two processes are involved, the hot chamber method and the cold chamber method. These two zinc die casting processes make use of various types of metal alloys during the production of parts in the zinc die casting process. The hot chamber method involves the process wherein a steel die is filled with a pool of molten metal, all the time maintaining pressure, until the metal hardens. The second process, the cold chamber method, involves the use of two separate chambers, first to melt, then to hold the melted zinc alloy before it is poured into a shot cylinder and afterwards inject them to the die casting die. Before, the metal alloys used in Zinc die casting processes are tin and lead. The zinc alloy however gained popularity and is now the first choice when it comes to die casting.

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What is Magnesium?

What is Magnesium? It is usually depicted as a metal, second only to steel and aluminum in popularity. Aside from that, people don’t know much more about it, even though it has so many uses. So, what is magnesium?

Magnesium, with the chemical symbol Mg, is the ninth most abundant element in the universe by mass, and eleventh within the human body. Its many applications include making components for electronic devices, photoengraving plates for printing, paper manufacturing, and fireproofing wood. Ever heard of mag wheels? Those shiny high-grade car wheels which guys usually drool over in auto shops? They’re not called that because they’re always featured in car magazines – their name comes from what they’re made out of, which is magnesium.

One of the current major uses of the element is in die casting. Because of its light weight, magnesium is one of the most commonly used metals for this purpose, as compared to zinc and aluminum.

A lot of compounds can be made with magnesium, and these compounds, along with magnesium in its purest form, are used over a wide variety of industries. What is magnesium? It is a very important and useful element – it’s not just a third place metal behind steel and aluminum.

Kinetic Die Casting manufactures die cast parts for their customers. If you would like to know more about what is die casting or if you would like a quote, please visit our website:Kinetic Die Casting Company

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Die Casting Metals Comparison

This chart shows the metals used for die casting. The four metals shown are the most common materials used in die casting alloys.

Other Die Casting Materials Comparison

 
Aluminum

Brass

Magnesium

Zinc
Tensile
strength, psi x 1000
47 55

34

41

Yield
strength, psi x 100 (0.2 pct offset)

23

30

23
Shear
strength, psi x 1000
28 37 20 31
Fatigue
strength, psi x 1000
20 25 14

7

Elongation,
pct in 2 in.
3.50

15

3.0

10
Hardness (Brinell)

80

91 63 82
Specific
gravity
2.71 8.30 1.80 6.60
Weight,
lb/cu. in.
0.098 0.305

0.066

0.24

Melting
point (liquid), °F

1100

1670

1105 728
Thermal
conductivity, CG5
0.23 0.21 0.16 0.27
Thermal
expansion, in./in./°F x 106
12.1 12.0 15.0

15.2

Electrical
conductivity,
pct of copper standard
27 20 10 27
Modulus of
elasticity, psi x 106
10.3 15

6.5

Impact
strength (Charpy), ft/lb

3.0

40

2.0 43.0

Kinetic Die Casting manufactures products like aluminum hardware, and aluminum boxes. If you would like more information on Kinetic Die Casting, please visit our website:Kinetic Die Casting Company

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