Zinc Aluminum Alloy
Author: Robby
Zinc-aluminum alloy mechanical comprehensive performance is close to brass, can be used at higher cutting speeds and deeper draft for cutting processing is widely used in small metal parts.
Advantages
1、Excellent machining performance:
Fast cutting extruded zinc-aluminum alloy is easy to be (turning, milling, drawing, planing, drilling, etc.) cutting and processing, and the comprehensive performance is close to lead brass, in the international community is known as “white brass”. The alloy can be used at higher cutting speeds and deeper draft for cutting, chips are easy to break, the wear on the tool and 60/40 brass is comparable, the finish and precision of the machined parts is high, the machining efficiency reaches more than 75% of the lead brass, and the parallel docking of the existing brass machining process is no obstacle. Blank parts do not require special treatment, can be directly plated or passivated.
2、Good surface treatment effect:
Adapt to a variety of plating processes, copper plating, nickel plating, chromium, tin, silver and ternary alloys, etc. can be, the finished product is no pockmarks, bubbles, surface finish and copper plating finished product is very similar to the neutral salt spray test for 48 hours without significant corrosion phenomenon, the plating yield of up to 98% or more.
3, cold working performance close to lead brass:
Mechanical properties close to or even exceed the lead brass, compressive strength 400 ~ 470 MPa, hardness 100-140 HV, elongation 15-24%. Cold bending 90 degrees without wrinkles 220 ℃ - 26 red punch easy to form without cracking no air holes without sand holes, torsion test can reach most of the industry standard requirements.
3, good conductivity:
Conductivity is similar to H62, conductivity > 28% (IACS), more than ordinary H59 and other lead brass, in the electronics, electrical, electrical and other industries have a broad application prospects.
4, cost-effective:
The material price is only about 60% of HPb59-1, and the material specific gravity is only about 70% of HPb59-1. Using fast cutting extruded zinc-aluminum alloy material, the cost of the same finished workpiece is only equivalent to 40% of the cost of lead brass. In the harsh economic environment in 2009, the large-scale promotion and application of fast-cutting extruded zinc-aluminum alloy will greatly alleviate the financial pressure on enterprises and enhance the comprehensive competitiveness of products.
5、Environmentally friendly materials, easy to cope with the environmental requirements of various countries:
SGS authoritative report shows that the fast-cutting special zinc-aluminum alloy, cadmium (cd) <10ppm, lead (Pb) <50ppm, other harmful substances such as mercury (Hg), hexavalent chromium (Cr6+), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE) are not detected, which is fully in line with the environmental standards of RoSH. Each batch of order can be provided with SGS test report and ICP analysis report of the batch according to customers' requirements.
6、Parallel docking of process;
In the application of automatic car, simple CNC car and other processing environment, no need to adjust the process can be directly processed, the stability of the process is high, the yield rate can be controlled.
Stamping and forging, polishing, bending, riveting and other back-end processes, can provide customers with mature and simple solutions.
APPLICATIONS
Extruded zinc-aluminum alloy is used in the following components:
1、Metal pens: nibs, lift tips, etc;
2, RF connectors: all kinds of low and medium frequency connectors shell, part of the inner conductor, etc.;
3、Electricians: electrical connector plugs, pins, etc.;
4, lamps and lanterns: terminals, etc.;
5, locks: lock cylinder, lock body and its stamping accessories, etc.;
6、Capacitors: spindles, etc;
9, bathroom plumbing: flat square faucet handle cap, bathroom fittings, base, etc.;
10, small hardware spare parts: such as nuts, screws, and a variety of different specifications of standard parts;
11, automobile, motorcycle spare parts, etc. ......