Our goal is to become your true partner in the field of casting in China. Dexun is a global professional manufacturer of Foundry(Casting)&CNC machining products, with new product R&D design center. Our company is committed to applying advanced manufacturing technology and strict quality control standards to every product. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
Product Application
Our products mainly include various castings and casting processing, which are widely used in automobile, aerospace, motor, pump, gear motor and other industries.
Our Team
We have 32 professional technicians and 14 senior engineers. Professional R&D team of 15 people.
Our Certificates
Our company has 2 international certifications, is an ISO9001 and IATF16949 certified enterprise, and operate the PPAP Level 3.
Production Equipment
Our company has 16 CNC machining centers, 30 CNC machining lathes, 6 fully automatic CNC machines and automatic sampling equipment. 20 kinds of testing instruments ensure product quality: three-coordinate measuring machine (CMM), X-ray flaw detection system, spectrometer, projector, roundness tester, tensile testing machine, two-dimensional measuring instrument, caliper and special test.
Stainless Steel Investment Casting
Stainless steel investment casting is a precise manufacturing process where molten stainless steel is poured into a ceramic mold to create complex, high-precision parts. This method is widely used for producing intricate components with excellent mechanical properties and resistance to corrosion.
Lost Wax Casting
Lost wax casting, also known as investment casting, is a precision casting process where a model made of wax is coated with a ceramic shell, and the wax is melted away to create a mold for metal casting. This method is widely used to produce intricate, high-precision parts.
Alloy Investment Casting
Alloy investment casting is a precision casting method where molten metal alloys are poured into a ceramic mold to create parts with complex shapes and tight tolerances. It is commonly used for producing components made from alloys such as steel, aluminum, and titanium.
Stainless Steel Investment Casting
Stainless steel investment casting have many advantages, including:
High precision: Investment casting offers very tight tolerances and detailed designs.
Complex geometries: Capable of producing parts with complex shapes and thin walls.
Superior strength and durability: Stainless steel provides excellent mechanical properties and resistance to wear.
Corrosion resistance: Stainless steel is highly resistant to corrosion, making it ideal for harsh environments.
Low waste:The process minimizes material waste, making it more cost-effective for high-quality parts.
Lost Wax Casting
Lost wax casting have many advantages, including:
High precision: Achieves fine details and tight tolerances.
Complex designs: Suitable for intricate shapes that are difficult to produce with other methods.
Material versatility: Works with a variety of metals, including steel, aluminum, and gold.
Surface finish: Produces parts with smooth surface finishes, minimizing post-processing.
Low material waste: Efficient material usage reduces waste.
Alloy Investment Casting
Alloy investment casting have many advantages, including:
Precision: Achieves high-dimensional accuracy and fine details.
Versatile alloys: Works with a wide range of metal alloys (e.G., steel, aluminum, titanium).
Complex geometries: Ideal for casting intricate and detailed parts.
Superior surface finish: Provides smooth, polished surfaces with minimal post-processing.
Low waste: Efficient use of materials reduces waste and enhances cost-effectiveness.
Stainless Steel Investment Casting
Stainless steel investment casting can be used for a variety of purposes, including:
Aerospace: Components such as turbine blades, valves, and structural parts.
Medical devices: Surgical instruments, implants, and precision medical components.
Industrial equipment: High-strength, durable parts for pumps, valves, and machinery.
Oil & gas: Critical components like valves, seals, and connectors used in oil and gas extraction.
Food processing: Corrosion-resistant parts such as fittings and equipment used in food and beverage industries.
Lost Wax Casting
Lost wax casting can be used for a variety of purposes, including:
Jewelry: Rings, necklaces, and other decorative pieces.
Aerospace: Turbine blades, engine components, and structural parts.
Medical: Surgical instruments, dental implants, and prosthetics.
Industrial: Valve components, pumps, and machine parts.
Art: Sculptures and other artistic pieces.
Alloy Investment Casting
Alloy investment casting can be used for a variety of purposes, including:
Aerospace: Turbine blades, engine components, and airframe parts.
Automotive: Engine components, brackets, and suspension parts.
Medical: Surgical instruments, implants, and dental products.
Industrial: Pumps, valves, and fittings used in high-performance environments.
Energy: Power generation components like turbine parts and heat exchangers.
Precautions for the Production of Alloy Investment Casting
Aluminum alloy die castings in the production processing must be heat treatment, in the heat treatment also has a lot of precautions. The first is to control its heating temperature to the right point, and the second is to ensure that its insulation time is long, can not let it cool too fast.
In dealing with this kind of die castings should also pay attention to keep its size stable, so as to have a good effect.
Annealing treatment will be aluminum alloy castings heated to a higher temperature, generally about 300 ℃, after a certain period of insulation, with the furnace cooling to room temperature process known as annealing.
In the process of annealing, the solid solution breaks down and the second phase particle gathers, which can eliminate the internal stress of the castings, stabilize the casting size, reduce the deformation and increase the plasticity of the castings. The solidification treatment heats the castings to the highest possible temperature, is close to the melting point of the eutectic, maintains a long enough time at that temperature, and then cools quickly, allowing the reinforced elements to dissolve to the maximum extent possible, and this high temperature state is fixed to the room temperature, a process known as solid dissolution treatment. The solid solubility treatment can improve the strength and plasticity of the castings and improve the corrosion resistance of the alloys.
Mold-making: A mold is made of the original wax model or sculpture. This mold becomes the inner mold, which is an exact negative of the original wax model. Inner molds are usually made of latex, polyurethane rubber or silicone.
Wax: Once the inner-outer mold is finished, molten wax is poured into it, covering the inner surface of the mold. Different thicknesses of wax can be achieved by pouring less or more wax into the mold. Eventually the hollow wax copy of the original model is removed from the mold.
The Chasing: Each hollow wax copy is then “chased”: the artists use a heated metal tool to rub out the marks that show the lines of where the pieces of the mold came together. The wax ends up looking like the finished piece.
Spruing: The wax copy is “sprued” with a treelike structure of wax that creates paths for the molten bronze casting material to flow into the mold and for air to escape so there are no air pockets in the finished product.
Slurry: A sprued wax copy is dipped into a slurry of silica, then into a sand-like stucco, or dry crystalline silica. This shell is allowed to dry, and the process is repeated until at least a half-inch coating covers the entire piece. Only the inside of the cup is not coated.
Burnout: The ceramic shell-coated piece is placed into a kiln, where the extreme heat hardens the silica coatings into a shell, and the wax melts and runs out, leaving a hollow space in the shape of the final sculpture.
Pouring: Bronze is melted in a crucible in a furnace and then poured carefully into the shell using those sprue lines.
Release: The shell is hammered or sand-blasted away, releasing the rough casting. The sprues, are also cut off.
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Molten Metal |
Ferritic Stainless Steel, Martensitic Stainless Steel, Austenitic stainless steel, Precipitation Hardening Stainless Steel, Duplex Stainless Steel |
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Carbon Steel, Alloy Steel, Tool Steel, Heat Resistant Steel, |
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Nickle-base Alloy, Aluminium Alloy, Copper-base Alloy, Cobalt-base Alloy |
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Metal Standard |
ISO, GB, ASTM, SAE, GOST EN, DIN, JIS, BS |
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Material for Shell Building |
Silica Sol (Precipitated Silica ) |
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Water Glass (Sodium Silicate) |
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Mixtures of Silica Sol and Water Glass |
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Technical Parameter |
Piece Weight: 2 gram to 200 kilo gram |
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Max Dimension: 1,000 mm for Diameter or Length |
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Min Wall Thickness: 1.5mm |
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Casting Roughness: Ra 3.2-6.4, Machining Roughness: Ra 1.6 |
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Tolerance of Casting: VDG P690, D1/CT5-7 |
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Tolerance of Machining: ISO 2768-mk/IT6 |
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Inner Core: Ceramic Core, Urea Core, Water Soluble Wax Core |
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Heat Treatment |
Normalizing, Tempering, Quenching, Annealing, Solution, Carburization. |
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Surface Treatment |
Polishing, Sand / Shot Blasting, Zinc Plating, Nickel Plating, Oxidation Treatment, Phosphating, Powder Painting, Geormet, Anodizing |
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Dimension Testing |
CMM, Vernier Caliper, Inside Caliper. Depth Gage, Height Gage, Go/No go Gage, Special Fixtures |
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Chemical Inspection |
Chemical Compostion Analysis (20 chemical elements), Cleanliness Inspection, X-ray Radiographic Inspection, Carbon-Sulfur Analyser |
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Physical Inspection |
Dynamic Balancing, Static Blancing, Mechanical Properties (Hardness, Yield Strength, Tensile Strength), Elongation |
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Packing |
Standard export wooden cases |
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Shipping |
Container transport, by sea. |
We're professional casting manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy cheap casting for sale here from our factory. Quality products and low price are available.
Zamak 3 Die Casting, zinc die casting, machining(0/10)
