Explanation of Zinc and Aluminum Alloys-深圳市金诺五金制品有限公司

Explanation of Zinc and Aluminum Alloys

Jinnuo Hardware| 2011-02-14|Back

The high strength and hardness characteristics of zinc alloys make them an ideal substitute for mechanical processing, pressing, stamping, and assembly parts. Compared with aluminum die-casting alloys, zinc alloys exhibit superior shock absorption and vibration absorption capabilities. Zinc alloy die-casting molds have a long service life (averaging over 600000 to 800000 mold cycles) and lower mold opening costs compared to aluminum alloys.

Characteristics of Zinc Alloy:
◆ High strength and hardness ◆ High precision dimensions and stability ◆ High quality finishing features
◆ Excellent conductivity ◆ Good thin-walled filling ability ◆ Outstanding corrosion resistance
◆ High thermal conductivity ◆ Good forming at room temperature, easy to bond ◆ Adequate recyclability

Excellent electroplating characteristics
Product Name	Al	Mg	Cu	Fe	Pb	Cd	Sn	Zn
Alloy 3	3.5~4.3	0.02~0.05	0.25max	0.1	0.003	0.004	0.005	Bal.
Alloy 7	3.5~4.3	0.005~0.02	0.25max	0.075	0.001	0.002	0.003	Bal.
Alloy 9	3.5~4.3	0.03~0.05	0.75~1.2	0.1	0.003	0.004	0.005	Bal.
Alloy 2	3.5~4.3	0.02~0.05	2.5~3.0	0.1	0.003	0.004	0.005	Bal.
ZA-8	8.0~8.8	0.015~0.03	0.9~1.3	0.075	0.003	0.006	0.006	Bal.
ZA-12	10.5~11.5	0.015~0.03	0.5~1.2	0.075	0.003	0.006	0.006	Bal.
ZA-27	25.0~28.0	0.01~0.02	2.0~2.5	0.075	0.003	0.006	0.006	Bal.

(1) Electronic components and communication equipment (2) Optical and general instruments (3) Automotive parts (4) Commercial machinery (5) Household appliances (6) Industrial machinery (7) General hardware and tools

Among numerous die-casting alloys, aluminum die-casting parts are lightweight and can withstand high operating temperatures. Aluminum die castings have high strength and rigidity, as well as good corrosion resistance and heat dissipation ability, making them ideal products for use in harsh environments. The lifespan of zinc alloy die-casting molds is short (averaging around 50000 to 80000 mold cycles) and the cost of mold opening is higher than that of zinc alloy.

Characteristics of aluminum alloy:
◆ High temperature resistance operation ◆ Good rigidity and strength to weight ratio ◆ High conductivity performance ◆ Outstanding corrosion resistance ◆ Excellent electromagnetic wave shielding performance ◆ Good shaping characteristics ◆ Excellent strength and hardness ◆ Excellent heat transfer (dissipation) performance ◆ Adequate recyclability ◆ Lightweight
Product Name	Si	Fe	Cu	Mn	Mg	Cr	Ni	Zn	Ti	Pb	Sn	Al
ADC3	9.0~10.0	0.9	0.6	0.3	0.4~0.6	－	0.5	0.5	－	－	0.1	Bal.
ADC5	0.3	1.1	0.2	0.3	4.1~8.5	－	0.1	0.1	－	－	0.1	Bal.
ADC6	1.0	0.6	0.1	0.4~0.6	2.6~4.0	－	0.1	0.4	－	－	0.1	Bal.
ADC10	7.5~9.5	0.9	2.0~4.0	0.5	0.3	－	0.5	1.0	－	－	0.3	Bal.
ADC1	11.0~13.0	0.9	1.0	0.3	0.3	－	0.5	0.5	－	－	0.1	Bal.
ADC12	9.6~12.0	0.9	1.5~3.5	0.5	0.3	－	0.5	1.0	－	－	0.3	Bal.

(1) Electronic appliances (4) National defense industry (2) Machinery and equipment (5) Building construction (3) Transportation (6) Household and other appliances

Next: The industry product standard "Die cast Aluminum Alloy Heat Sink" will be implemented from August 2011