Brass Lost Wax Casting
The production methods of bronzes are generally divided into three categories: Fan casting, lost wax, and mud casting. Among them, the workmanship is different, and the methods used are also different. Among them, the famous hollow crafts in my country are all made by the lost wax method.
The lost wax method belongs to the precision casting method of bronze ware. The method is to use beeswax to make a casting model, and then use other refractory materials to fill the mud core and form the outer model. After heating and baking, the wax model is completely melted and lost, so that the entire casting model becomes an empty shell. Then pour the solution into it and cast it into utensils. After more than 20 years of precipitation, Qinhuangdao Zhongwei Precision Machinery Co., Ltd. has rich experience in the production of various grades of brass, tin bronze castings, silicon bronze, aluminum bronze and other castings. We expect manufacturers from all over the world to consult and negotiate business.
Product Description
Brass lost wax casting base case
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:
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. Customized according to customer requirements.
Brass Lost Wax Casting Crafts
Bronze, because of its long history, was originally used as a container, and is now used as a handicraft, dating back to the Neolithic Age. In China, there are world-renowned handicrafts such as "horses treading on flying swallows", "Qin Shihuang Mausoleum bronze chariots and horses", "Si Yang Fang Zun" and "Sanxing Dui Li Figures".
So what kind of production process does the product of such a distant era have?
The production methods of bronzes are generally divided into three categories: Fan casting, lost wax, and mud casting. Among them, the workmanship is different, and the methods used are also different. Among them, the famous hollow crafts in my country are all made by the lost wax method.
The lost wax method belongs to the precision casting method of bronze ware. The method is to use beeswax to make a casting model, and then use other refractory materials to fill the mud core and form the outer model. After heating and baking, the wax model is completely melted and lost, so that the entire casting model becomes an empty shell. Then pour the solution into it and cast it into utensils.
In the late Spring and Autumn Period, the Chinese invented the lost wax casting process. The overall process of the lost wax method is divided into three steps. First, a wax mold is made of fusible paraffin, and then the wax mold is poured with fine mud for many times to harden it to form a cast shape. Then, the cast is fired and potterized. At this stage, the paraffin melts and flows out, forming a cavity in the casting. Finally, copper water is poured into the cavity to make utensils. The lost wax method is usually used to cast some complex bronze utensils. The bronze bans of Chu State unearthed in Xichuan, Henan and the Zenghou Zunpan unearthed in Suizhou, Hubei are believed to be cast by the lost wax method.
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.
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