Sand Casting Aluminum Parts

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. is an experienced manufacturing enterprise engaged in aluminum alloy metal mold casting. The company has a unique ability to design the pouring system, fully interprets the principles of fluid mechanics, and has created a new system in sequential solidification, feeding, exhaust, and coating. Ships, other locomotive manufacturers and parts manufacturers supporting.

The company's well-known product series include cast aluminum doffer wall panel series for textile machinery, automobile oil pump, water pump housing, high-speed train plug door components and complete sets of aluminum alloy castings for heavy trucks. Small castings 50 grams, very large castings 80 kg, thin castings 1 mm, small molds 5 kg, very large molds 2300 kg have been indirectly shipped to Germany, the United States, Italy, the Netherlands, Japan, Australia and more than 20 domestic The customer has established a partnership.

The company's business purpose: be grateful and serve the country by industry.

Company business philosophy: simple and diligent

The company's operating policy: adhere to ----- do simple and repetitive work well.

The company's operating goals: scientific, rational and sustainable development. The company's quality goals: rigorous and realistic.

The company's development philosophy: do better, pursue higher, from to superior.

Company production concept: high safety and efficiency, energy saving and environmental protection Company marketing concept: people-oriented, harmonious casting.

Product Basics

1. Implementation standards: The company strictly implements ISO9001 & TS 16949 certification.

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

3. Main processes: sand casting, silica sol investment casting, water glass investment casting,

shell casting,deburring, sand blasting, machining, heat treatment, leak testing, surface treatment, etc.

4. Available materials:

Aluminum-silicon alloys, aluminum-copper alloys, aluminum-magnesium alloys, and aluminum-zinc alloys. Gray iron, ductile iron, cast iron, cast steel, cast aluminum, cast copper, alloy steel, etc. are customized according to customer requirements.

Aluminum Alloy Gravity Casting Process

Gravity casting of aluminum alloy refers to the process of injecting molten aluminum into the mold under the action of the earth's gravity. Gravity casting is divided into: sand casting, metal mold (steel mold) casting, lost foam casting, etc. Nowadays, metal mold (steel mold) casting is widely used. The mold is made of heat-resistant alloy steel. The strength, size and appearance of the cast aluminum casting are higher than those of other casting processes.

Gravity-casting molten aluminum is generally poured into the gate manually, relying on the self-weight of the molten metal to fill the cavity, exhaust, cool, and open the mold to obtain the sample. The process flow is generally: molten aluminum smelting, casting filling, exhausting , cooling, mold opening, production cleaning, heat treatment, processing.

Matters Needing Attention In Sand Casting Aluminum Parts

1. Be sure to put the dummy head in place before casting, and repair and inspect all places. If any damage is found, it must be replaced in time or necessary maintenance.

2. If the graphite ring is too damaged or cracked, etc., the graphite ring must be replaced in time.

3. Before casting aluminum alloy, it is necessary to check whether the equipment is in normal operation, whether the lubrication is in place, whether the wire rope is damaged, and whether the switch is flexible, etc.

4. It is necessary to preheat the launder and related casting tools, and remember to put the filter screen in place during preheating.

5. After opening the water hole, the plug must be replaced in time, and the water outlet must be closed, so as to control the flow.

6. When casting aluminum alloys, it is necessary to wait until the relevant molds have been filled with aluminum water before starting to work, and pay attention to controlling the speed and temperature during casting.

7. At the end of the work, the casting machine should be stopped first and then the water should be stopped, so as to ensure that all the aluminum water inside is completely drained.

Post Casting Process

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

2. Sand casting auto parts 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.

Available Materials List:

Grey iron and ductile iron

Other materials: cast iron, cast steel, cast aluminum, cast copper, alloy steel, etc. can be customized according to customer requirements.

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 Range Of Sand Casting Aluminum Parts

1. Engine parts

2. Auto parts

3. Mechanical parts

4. Railway train parts

5. Truck parts

6. Tractor accessories

7. Construction equipment

8. Agricultural equipment

9. Machine tool equipment

10. Other industrial fields