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Lost wax casting (also known as lost wax casting or hot mold casting) is a precision casting method. The process of lost wax casting is relatively complex, but it can produce high-quality, high-precision products with complex shapes and high surface quality requirements. Below we will introduce the detailed process of lost wax casting.Investment casting is often used to manufacture thefollowing parts and components:
Pump & Valve ComponentsVehicle Components
Turbocharger lmpellers
Machinery Components
Parts with Complex Geometry
Food & Beverage Grade Machinery ComponentsMisc. Equipment Parts
Products Description
The process flow of investment casting
1: Casting design
First, the design of the casting must be carried out. This involves designing and validating the model based on the casting requirements and practical needs. The validation primarily assesses whether the casting meets the specified standards, while the model design should be as simple and precise as possible. Additionally, during the modeling process, it is essential to consider the actual manufacturing and usage conditions to ensure that the casting's shape meets the necessary technical requirements.
2: Make a casting mold
After the casting design is completed, a mold must be created. Various methods can be used to create the mold, such as hand carving and 3D printing. Hand carving, a traditional method, is less efficient. In contrast, 3D printing can create the mold more quickly and accurately, streamlining the production process.
3: Molding
Coating is to apply a layer of special material on the surface of the casting mold, in order to avoid overheating and burn the surface of the casting mold during casting. Common coating materials include ink, graphite, etc.
4: Baking
After the mold is applied, it needs to be baked. This process is to allow the coating on the surface of the mold to dry and cure fully. It usually takes 6-8 hours at a low temperature (50-70 degrees Celsius).
5: dewaxing
After baking, the mold begins to dewax. In a special dewaxing device, the surface coating of the mold is melted so that all the wax melts and a hollow mold appears.
6: Casting
On the basis of dewaxing, casting can be carried out by pouring molten metal into a specially manufactured gating system. After casting, the metal needs to be cooled and the casting removed.
7: Clean up
After the casting is removed, it needs to be cleaned. Each casting needs to be treated for a certain period of time, including using sandpaper and iron brush to remove particles and burrs and other impurities on the surface of the casting.
8: Burr Treatment The final step is burr treatment. When using automatic or semi-automatic burr removal processes, the casting is placed on a specially designed machine and the burrs are removed by high-speed rotating mechanical shovels. After the treatment, dust and debris are sucked away.
Mold casting is a highly precise casting method, where each step is crucial. Any mistake can result in defective castings. Therefore, the production process of mold casting requires strict control and management. Our company ensures that the precision of our mold-cast parts meets the required standards, thus smoothly meeting both customer and market demands.
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why choose our products
1. 20 years of experience in casting cast iron plate, quality assurance, timely delivery
2. Perfect machining and inspection equipment can directly provide finished parts and meet the inspection requirements of customers
3. It has independent import and export rights and can export products to all parts of the world
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