Aluminium Precision Casting Gray Casting Iron and Magnesium Casting Alloys

 

The essence of pressure casting (referred to as die casting) is the method of obtaining castings by filling the die casting cavity with liquid or semi liquid metal at a higher speed under high pressure, and forming and solidifying under pressure.

characteristic

High pressure and high-speed filling die casting are two major characteristics of die casting. Its commonly used injection pressure ratio ranges from thousands to tens of thousands of kPa, and even up to 2 × 105kPa. The filling speed is about 10-50m/s, and sometimes it can even reach over 100m/s. The filling time is very short, usually within the range of 0.01 to 0.2 seconds. Compared with other casting methods, die-casting has the following three advantages:

Advantages:

1. Good product quality

The dimensional accuracy of castings is high, generally equivalent to levels 6-7, and even up to level 4; Good surface finish, generally equivalent to 5-8 grades; The strength and hardness are relatively high, and the strength is generally increased by 25-30% compared to sand casting, but the elongation is reduced by about 70%; Stable size and good interchangeability; Can be used for die-casting thin-walled and complex castings. For example, the current minimum wall thickness of zinc alloy die castings can reach 0.3mm; Aluminum alloy castings can reach 0.5mm; The minimum casting aperture is 0.7mm; The minimum pitch is 0.75mm.

2. High production efficiency

High machine productivity, such as the domestic J-III3 horizontal cold air die-casting machine, which can cast 600-700 times per eight hours on average, and the small hot chamber die-casting machine, which can cast 3000-7000 times per eight hours on average; Die-casting molds have a long lifespan, with a pair of die-casting molds and die-casting bell alloys, which can last for hundreds of thousands or even millions of times; Easy to achieve mechanization and automation.

3. Excellent economic results

Due to the advantages of precise size and smooth surface of die-casting parts. Generally, it is used directly without mechanical processing, or the processing volume is small, which not only improves the metal utilization rate but also reduces a large number of processing equipment and working hours; The cost of castings is easy; Combination die casting can be used with other metal or non-metallic materials. It saves both assembly time and metal.

Although die-casting has many advantages, there are also some drawbacks that need to be addressed.

shortcoming

For example:

1) Due to the high filling speed and unstable flow state of liquid metal in the mold cavity during die casting, the general die casting method is used. The casting is prone to gas pores and cannot undergo heat treatment;

2) For castings with complex concave surfaces, die-casting is more difficult;

3) High melting point alloys (such as copper and ferrous metals) have a lower lifespan in die-casting molds;

4) It is not suitable for small-scale production, mainly due to the high manufacturing cost of die-casting molds, high production efficiency of die-casting machines, and uneconomical small-scale production.

Application Scope and Development Trend of Die Casting

Die casting is one of the most advanced metal forming methods, which is an effective way to achieve less chips and no chips. It has a wide range of applications and is developing rapidly. The size and weight of the casting depend on the power of the die-casting machine. Due to the continuous increase in power of the die-casting machine, the shape and size of the casting can range from a few millimeters to 1-2 meters; The weight can range from a few grams to tens of kilograms. Foreign countries can die-cast aluminum castings with a diameter of 2m and a weight of 50kg.

Die-casting parts are no longer limited to the automotive and instrument industries, but have gradually expanded to various other industrial sectors, such as agricultural machinery, machine tool industry, electronic industry, national defense industry, computer, medical equipment, clocks, cameras, and daily hardware. Specifically, they include: automotive parts, furniture parts, bathroom parts (bathroom), lighting parts, toys, shavers, tie clips, electrical and electronic parts, belt buckles, watch cases, metal buckles, locks, etc, Zippers, etc. In terms of die-casting technology, new processes have emerged, such as vacuum die-casting, oxygenated die-casting, precision and dense die-casting, and the application of soluble cores..

 

 

 

 

Basic Information

Total Capitalization	less than US$50,000
Country / Region	China
Year Established	2014
Total Employees	100 to 149
Business Type	Exporter, Manufacturer, Trading Company

 

Trading Capabilities

Total Annual Sales	less than US$50,000
Export Percentage	90 percent to 94 percent
OEM Services	Yes
Small Orders Accepted	Yes
Brand Names	Innolead
Payment Terms	TT
Main Competitive Advantages	Experienced R&D Department, Large Product Line, ODM (Original Designing & Manufacturing), OEM Capability, Production Capacity, Reliability, Reputation
Other Competitive Advantages	NA
Major Customer	Soprano, European Thermodynamics Ltd.
Export Markets	Australasia, Central/South America, Eastern Europe, Mid East/Africa, North America, Western Europe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTACT US

Alex He

Tel:+86 15989331617

Whatsapp&Wechat:+86 15989331617

Skype ID:alex.ho43

Email: alex.he@innolead.net

 

Web:www.innolead.net

 

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