Zinc Alloy Die Castings

Zinc alloy die castings is a precision casting method that uses high pressure to force metal melt into a metal mold with complex shapes. It is a precision casting method. Qinhuangdao Zhongwei Precision Machinery Co., Ltd. currently has more than 10 cold chamber die-casting machines of 200T-1250T models, and a total of 3 hot-chamber die-casting machines of 88T-168T models. The excellent quality has created a gold reputation, making the other shore products. It quickly became famous at home and abroad. More than 70% of the products are exported to the United Kingdom, Germany, Japan, the United States, Taiwan and other countries and regions.

Product Dsecription

1. Implementation standards: the company strictly implements ISO9001, ISO14001, IATF16949 certification

The products have passed the certification of ROHS, FDA EU, etc.

2. Product material standards: ISO, GB, ASTM, SAE, ISO, EN, DIN, JIS, BS

3. Main processes: die casting process, investment casting, shell casting, deburring, sand blasting, machining, heat treatment, leak testing, surface treatment, etc.

4. Casting available materials:

Magnesium alloy, aluminum alloy, zinc alloy, tin bronze, silicon bronze, aluminum bronze, brass, red copper, titanium alloy, high manganese steel, high chromium steel, high nickel steel, carbon steel, alloy steel, stainless steel, gray iron, , cast iron, cast steel, cast aluminum, etc. are customized according to customer requirements.

Available materials for die casting:

Production Material Analysis

Zinc alloys are alloys composed of other elements based on zinc. Commonly added alloying elements are aluminum, copper, magnesium, cadmium, lead, titanium and other low-temperature zinc alloys. Zinc alloy has low melting point, good fluidity, easy fusion welding, brazing and plastic processing, corrosion resistance in the atmosphere, and easy recycling and remelting of residual waste; however, the creep strength is low, and it is prone to dimensional changes caused by natural aging. Prepared by melt method, die cast or pressure processed into material. According to the manufacturing process, it can be divided into cast zinc alloy and deformed zinc alloy.

What is Zinc Alloy?

Zinc alloys, also known as zinc-based alloys, are generally divided into binary alloys, ternary alloys and multi-element alloys. Binary zinc-based alloys generally refer to zinc-aluminum alloys; ternary zinc-based alloys generally refer to zinc-aluminum-copper alloys; multi-component alloys generally refer to zinc-aluminum-copper and other trace metals.

Zinc-based alloys, zinc alloys, and zinc-aluminum alloys are all broad concepts, not referring to the concept that the alloy can meet a specific function. For example, zinc-aluminum alloys are divided into low-aluminum-zinc-based alloys, medium-aluminum-zinc-based alloys and high-aluminum-zinc-based alloys according to the aluminum content. Although they are all zinc-aluminum alloys, their properties are quite different.

Low-aluminum-zinc-based alloys are generally binary alloys, which are mainly used for anti-corrosion functions. Aluminum-zinc-based alloys are generally ternary alloys, which are mainly used for fastening functions, and are often used to manufacture fasteners such as rivets. Convenience. High-aluminum zinc-based alloys are generally ternary or multi-component alloys. The alloys have such characteristics that using different melting parameters and casting processes, the materials produced have great differences in performance; some elongations are suitable for For the manufacture of fasteners, some with high strength are suitable for the manufacture of high-strength shells, and only a small part of the low friction coefficient is suitable for the manufacture of sliding bearings; therefore, high-aluminum-zinc-based alloys are called "magic alloys" abroad. Generally speaking, zinc-based bearing alloys are all high-aluminum-zinc-based alloys, but not all high-aluminum-zinc-based alloys are sliding bearing alloys.

The main added elements of Zinc alloy die castings are aluminum, copper and magnesium. Zinc alloys can be divided into two types: deformation and casting zinc alloys according to the processing technology. Casting zinc alloys have good fluidity and corrosion resistance, and are suitable for die-casting instruments, automobiles Parts shell, etc.

Post Casting Process

1. Heat treatment: annealing, carbonization, tempering, quenching, normalizing, surface tempering

2. Processing equipment: CNC, WEDM, lathe, milling machine, drilling machine, grinder, etc.;

3. Surface treatment: powder spraying, chrome plating, painting, sandblasting, nickel plating, galvanizing, blackening, polishing, bluing, etc.

Moulds and Inspection Fixtures

1. Mold service life: usually semi-permanent. (except for lost foam)

2. Mold delivery time: 10-25 days, (according to product structure and product size).

3. Tooling and mold maintenance: Zhongwei is responsible for precision parts.

Quality Control

1. Quality control: the defective rate is less than 0.1%.

2. Samples and trial run will be 100% inspected during production and before shipment, sample inspection for mass production according to ISDO standards or customer requirements

3. Testing equipment: flaw detection, spectrum analyzer, golden image analyzer, three-coordinate measuring machine, hardness testing equipment, tensile testing machine;

4. Provide after-sales service.

5. The quality can be traced back.

Application

Zinc alloy die castings have excellent surface quality and have been widely used in the manufacture of toys, tableware, locks, decorative hardware, electrical and electronic castings, bathroom accessories, auto parts, zippers, metal buckles, watch cases, fans, daily necessities , household appliances, photographic equipment, audio, mechanical and electrical products and parts.

Certicifation