Dongguan precision casting mirror treatment and dewaxing casting

If there are more residues in the air oxide film in stainless steel precision casting, its purity will be low, and the transparency will be reduced. The residue in the air oxidation film mainly comes from the stainless steel casting itself, and some of it comes from the air oxidation bath. Therefore, appropriately reducing the content of aluminum alloy elements in the casting can reduce the residue content as much as possible.
The equipment required for the essential steps of stainless steel precision casting is: high precision casting wax injection-wax injection machine, industrial chiller, central air conditioning; Plastic buckets, static buckets, and slurry dipping can also use robotic arms and actively listed wax supply system software;
Gold melting-sintering furnace, high frequency furnace, shell vibration machine; post-processing technology-cutting machine, grinding machine, automatic sandblasting machine, sand cleaning machine, heat treatment equipment, high-speed punch; maintenance-pneumatic grinding equipment, argon two Welding machine, grinding machine; quality assurance-spectrum analyzer, three-dimensional these. This is more general and common. If more high-end is required, vacuum pump casting furnace or vacuum heat treatment furnace or X-ray is also required.
Dongguan precision casting method refers to the general term for forging methods that use non-metallic materials for molds and crafts with higher specifications than ordinary sand mold castings. It includes three categories: dewaxing forging method, plaster mold method, and porcelain mold method. Let's take a look at it in detail below:
Dewaxing precision casting: The larger boundary of this precision casting is 700mm, and the easy-to-make length is less than 200mm. The larger net weight of the casting is about 100KG, usually below 10KG. The standard tolerances of castings are 20mm±0.13mm, 100mm±0.30mm, 200mm±0.43mm, and the specification accuracy of large parts cannot easily exceed ±0.10mm. The viewing angle size tolerance is ±0.5~±2.0 degrees, and the minimum thickness of the casting is 0.5~1.5mm. The thickness of the surface of the casting is about Rmax4S~12S.
There are few restrictions on the materials of precision casting castings, such as aluminum alloy profiles, magnesium alloys, titanium metal, copper alloys, various stainless steel materials, cobalt-based and nickel-based heat-resistant alloys, hard raw materials, and complex steel parts. The precision of the specifications is excellent, and the drilling production and processing are few. Dewaxing high-precision castings are widely used in spout modules, natural gas pressurization, steam pressurization, airport parts, gas turbines, cars, food equipment, printing equipment, paper machinery equipment, refrigeration compressors, various valves, pumps, and meters. Detector, seaming machine, weaponry, business management equipment, and other equipment parts.