Investment Casting
Price:
USD 850.00 - 2000.00
Minimum Order:
3000 Ton
Supply Availability:
20000 Ton per Day
Contact Supplier:
Supplier Details
Shanxi Rayforce Manufacture Co., Ltd.
Free Member (2022)
[ Taiyuan, SX,China ]
Business Type: Manufacturer
Supplier has 5 products
Quick Details
Origin City:
Taiyuan
Origin Country:
China
Packaging and Delivery
Delivery Lead Time:
50 days
Product Description
Investment casting, also called the lost-wax casting process, is actually an ancient metal casting technology with a history of over 6,000 years. It generally refers to the mold made by meltable materials such as wax, plastic, etc. in very accurate dimensions. The mold is applied to several layers of refractory coating, then heat it to create a solid and hard shell over the mold. The further step is to heat it at a very high temperature, so as to melt the inner mold so that let the fire-resistant shell left. All these processes together we call them molding, it describes the basic method to make the shell that we desired for the next casting works.
After making the shell, the next casting works is similar to normal sand casting. Pouring the melted metal into the shell, wait until the casting part cooling down. Then break the shell to acquire the finished part.
The Advantages of Investment Casting
1.The investment casting is suitable to make the complicated structure product, especially to produce high-temperature resistant alloy parts. An extraordinary example is manufacturing the fan blade of the air engine. Its streamlined shape and inner chamber make the traditional machining process incapable to form a shape. However, by using investment casting technology, this kind of part can achieve mass production, which product consistency is approved as well.
2.The investment casting is able to reach casting accuracy CT46 while the sand casting is CT1013, and the die casting is CT57. however, there are a number of factors that will affect the accuracy of the finished product, including the shrink of mold, the deform of the shell during heating and cooling, the deform of investment casting part during solidifying, etc. Therefore, an experienced engineer will pre-calculate these factors and adjust the dimensions of the investment casting mold or take measures to reduce the negative effects.
3. During the molding process, the investment casting mold made by wax or plastic has a fine surface finish. Furthermore, since the shell is produced by the composite of high-temperature-resistant materials and fire-resistant adhesives, the shell inner surface which is directly contacting the melted metal has quite a high-quality finish. As a result, the investment casting can reach a high surface finish roughness Ra.1.63.2?m.
4. Even though the investment casting parts are generally small, some of the advanced foundries can produce the casting with every single piece weighing over 500 kg. Meanwhile, this relatively large investment in casting requires more experienced engineers and casting operation teams in handling.
Manufacture of Investment Casting
The first process of investment casting production is the manufacture of the investment casting mold, which is used to form the model of the cavity in the refractory shell, so to obtain castings with high dimensional accuracy and surface finish. In addition, the performance of the investment casting mold itself should make the subsequent processes such as shell making as easy as possible. In order to get the above high-quality requirements of the investment casting mold, in addition to a good press press molten die mold, but also must choose the appropriate investment casting materials referred to as mold material and reasonable mold making process.
Most of the production uses pressure to press the paste mold material into the pressed shape to make the investment casting mold. Before pressing the casting mold, a thin layer of the parting agent is applied to the surface of the mold so that the molten mold can be removed from the mold. When pressing a wax-based mold, the parting agent can be divided into machine oil, turpentine, etc.; when pressing a resin-based mold, a mixture of sesame oil and alcohol or silicone oil is often used as a parting agent. The thinner the parting agent layer, the better, so that the investment casting mold can better replicate the surface of the pressed mold and improve the surface finish of the molten mold. There are three methods of pressing the investment casting mold, plunger pressurization, pneumatic pressurization, and piston pressurization.
Description of Investment Casting
Investment casting is also called lost wax casting when the wax is used for the mold. Investment casting usually refers to a casting scheme in which to shape by fusible material, and the shape surface is coated with several layers of refractory material to make the shell. Then the shape is melted out of the shell, so as to obtain the investment casting without parting surface, and the casting scheme can be filled with sand after high-temperature roasting. Because the investment casting mold is widely made of wax material, investment casting is often called lost wax casting.
The types of alloys that can be produced by invest casting process include carbon steel, alloy steel, heat-resistant alloys, stainless steel, precision alloys, permanent ma
Basic Information
Country:
China
Business Type:
Manufacturer
Year Established:
2020
Total Employees:
51 - 100
About Us
Our foundry was established in 2005, covers a total area of about 40,000 square meters and has over 300 employees. the foundry is equipped with several types of energy-saving environmentally-friendly production lines including automatic or semi-automatic production lines of key processes: wax making, shell making, pouring, heat treatment. The machining factory is located in headquarters and is fully equipped with complete and advanced CNC machining equipment including 30 vertical and horizontal machining centers, and more than 30 CNC machines and 50 other machining equipments., the machining facility is fully independent from the casting foundry and has an independent management team and tailored business model to suit. In addition to the casting, forging and machining, it also has the facility to machine various profiles. Our company also has a lot of advanced inspection equipment, including Spectrometer, Metallographic Microscope, Tension Tester, Low Temperature Tester, X-ray Tester, MPT, UT, CMM, Video Measurement Machine and so on. With these advanced facilities instruments, we are able to supply the high quality castings to our customers, and make products meeting comprehensive inspection requirements on chemical composition, mechanical properties, non-destructive testing and high precise dimensional inspections.
Member History
Year Joined:
2022
Membership Type:
Free Member
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