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Service industryLiquid measurement and control for oil & gas, food, chemicals, and moreWe have been specializing in precision investment casting of parts for the measurement and control industry for nearly 40 years, offering efficient and highly competitive one-stop solutions that meet the evolving needs of global industry leaders.
High-speed centrifugeThe centrifuge industry demands high product accuracy, superior performance, and complex structural designs. Haosen not only provides customers with manufacturing services but also offers a one-stop solution that includes comprehensive inspections such as dynamic balancing.
Food machineryThe surface of food machinery products must meet the Ra0.4 mirror finish standard. These products are challenging to polish, and after polishing, they must pass a 48-hour neutral salt spray test. Haosen’s customers can rely on us to provide the entire process in-house to meet their requirements.
AerospaceHaosen offers a variety of casting processes and precision machining technologies to produce aerospace components that meet industry standards and customer requirements. We also provide a full range of inspection services to ensure product quality. By offering customers a one-stop solution, we can guarantee competitive product pricing, timely delivery, and high-quality products.
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Manufacturing process3D printing3D printing is used in new product development, shortening the R&D cycle and eliminating the need for mold making, thereby ensuring timely delivery for Haosen Precision Casting’s new product development.
Mold manufacturingThe Mold Department is the first step in our company’s product manufacturing process. Currently, the department has 27 employees who are proficient in a full range of processes, including design, process engineering, turning, milling, grinding, CNC machining, three-coordinate measurement, electrical discharge machining (EDM), wire-cutting, precision boring, and fitting work. This enables us to comprehensively handle the entire process—from design to production and assembly of molds and tooling. Our design and machining personnel are highly experienced, each with over 10 years of industry experience. The products we manufacture and produce include: precision casting molds, small stamping dies, rubber molds, plastic molds, part-processing fixtures, measuring tools, as well as molds and tooling for aerospace-related components.
Investment castingInvestment casting is one of the most sophisticated casting processes. While producing parts with intricate structures, it also achieves high dimensional accuracy and excellent surface quality.
Precision machiningPrecision machining encompasses processes such as turning, milling, boring, drilling, electrical discharge machining (EDM), engraving, grinding, and other techniques. It is a process in which material is removed from a workpiece through mechanical operations to produce precision parts that meet stringent dimensional accuracy, geometric tolerances, and high surface quality as specified in the drawings.
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Investment casting parts
Investment casting parts
Investment casting is one of the most sophisticated casting processes. While producing components with intricate geometries, it also achieves exceptionally high dimensional accuracy and superior surface quality. Investment casting can be used to manufacture products from nearly all metallic materials, thereby meeting the demands of a wide range of end-market applications. Investment casting is a metal-forming process in which a ceramic refractory material is coated onto the surface of a wax pattern to create a ceramic mold. After the ceramic mold has been formed, it undergoes drying and then the wax pattern is melted out, leaving behind a mold shell. Molten metal is subsequently poured into this ceramic mold shell; once the metal has solidified, the mold shell is removed, yielding the final cast part. Some investment-cast parts require further machining after casting. The investment casting process is typically employed for manufacturing components with complex shapes and stringent requirements for dimensional accuracy and surface quality.
Investment Casting Process Flowchart
Equipment
Producing investment castings with high complexity and precision requires high-quality equipment that can achieve tight tolerances and repeatable accuracy. At the same time, the production equipment and manufacturing processes must be capable of handling large volumes of products quickly and continuously without compromising product quality. At Haosen Precision Casting, we employ more advanced technologies and equipment at every stage of the investment casting process. Mold design, wax injection, wax pattern assembly, shell preparation, pouring, heat treatment, and testing are all carried out by our highly skilled and experienced team.
Wax pressing
Haosen Precision Casting is equipped with 19 fully automatic and semi-automatic wax injection machines. Among these, there are 11 8T dual-station wax injectors, 1 10T wax injector, 1 16T wax injector, 3 25T wax injectors, 1 30T wax injector, 1 50T wax injector, and 1 80T wax injector, which can meet the molding requirements for products of various sizes.
Shell making
Haosen Precision Casting has two shell-making production lines: a manual shell-making line and an automated shell-making line. The automated shell-making line is equipped with a state-of-the-art three-head, six-arm dipping-and-spraying sand-coating machine that is advanced domestically. This automated production process eliminates the quality variations in mold shells that can occur during manual operations, enhances the stability of the shell-making process, and reduces the physical workload for workers.
Melting and Casting
We have 17 medium-frequency melting furnaces dedicated to the production of steel castings. In addition, we are equipped with two vacuum induction melting furnaces: a single-chamber vacuum furnace with a capacity of 25 kg and a three-chamber vacuum furnace with capacities of 50/100 kg. These vacuum induction melting furnaces can produce nickel-based and cobalt-based investment castings with an equiaxial solidification structure, weighing from 0.03 to 50 kg.
Materials
We are capable of meeting the requirements of various material standards, including ASTM, AISI, DIN, EN, ISO, and GB. We have the capability to cast hundreds of ferrous and non-ferrous alloy materials, such as stainless steel, copper alloys, and high-temperature alloys.
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Martensitic stainless steel • ZG1Cr13 • ZG12Cr13 • ZG2Cr13 • ZG1Cr11MoV |
Austenitic stainless steel • 304304L • CF3 • CF3M • CF8M • CF8 • 1.4308 |
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Precipitation-hardening stainless steel • 17-4PH |
High-temperature alloy • K4169 • K640 • K3625 • K418B |
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Hastelloy alloy • CX2MW • CW12MW • C22 • CW6M |
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Ability
We have casting capabilities for over a hundred types of ferrous and non-ferrous alloy materials, including stainless steel, alloy steel, copper alloys, and high-temperature alloys. Our products meet the requirements of various material standards such as ASTM, AISI, DIN, EN, ISO, and GB, and we can also accommodate customers’ specific material requirements. We primarily manufacture investment castings with tight dimensional tolerances and complex geometries, with individual weights ranging from a few grams to 100 kilograms.
3D printing technology
3D printing technology offers a cost-effective solution for rapid prototyping and the production of small-batch parts. At Haosen, we use 3D printing to develop complex investment castings whose designs are still being refined or that have tight delivery deadlines. Since 3D printing eliminates the need for mold making, it accelerates the design and validation of casting processes, thereby shortening the overall product development cycle.
Why choose Haosen’s 3D printing technology?
We are a one-stop solution provider for high-tech components. We can independently offer a variety of value-added services:
• Dimensional inspection and metallurgical analysis capabilities
• Scanning technology
• Nondestructive testing (X-ray inspection, dye penetrant testing, magnetic particle inspection, fluorescent penetrant testing)
• Three-coordinate measurement
• Heat treatment
• Surface treatment
• Machining and assembly capabilities
By partnering with us, you’ll enjoy streamlined supply chain management, swift product delivery, lower procurement costs, and reliable, high-quality service delivered on time.
3D printing equipment: EP-S7250
Maximum dimensions: 700 x 700 x 500 mm
Commonly used material in 3D printing: polystyrene (PS) powder. The choice of material depends on the requirements of the mold.
Typical investment castings produced using 3D technology:
Address: No. 28, Lantian Road, National Aviation High-Tech Industrial Base, Yanliang District, Xi'an City, Shaanxi Province
