Investment Casting
What is Investment Casting?
Investment Casting is an advanced method of manufacturing industrial parts in which the final part is produced with high dimensional accuracy and very desirable surface quality. In this process, the part pattern is first made of wax and then covered with ceramic layers. After the wax is removed and the molten metal is poured into the mold, a part with precise details and a uniform structure is obtained.
Investment casting allows the production of parts with complex geometries, variable thicknesses and fine details without the need for heavy machining. Due to the high process control and uniformity of the metal microstructure, the parts produced have appropriate mechanical strength, better balance and stable performance.
With the ability to use a wide range of engineering alloys such as stainless steel, alloy steels and bronze, this method is considered an ideal option for the production of industrial parts used in the oil and gas, petrochemical, water and wastewater, power plant, automotive and advanced industrial equipment industries.
Advantages of Investment Casting
Usability of Investment casting in the production of industrial equipment
Investment Casting is one of the most advanced and reliable methods for producing industrial parts with high dimensional accuracy and excellent surface quality. This process allows the production of parts with complex geometries, precise details and controlled tolerances, which in many industries plays a key role in improving the performance and extending the life of the parts.
In investment casting, the uniformity of the metal structure and proper mass distribution increase mechanical strength and reduce internal stresses. Higher surface quality also reduces friction, reduces energy loss and minimizes the need for post-production machining, which ultimately reduces production time and cost.
The possibility of using a wide range of engineering alloys, including stainless steel, alloy steels, bronze and wear and corrosion resistant alloys, makes investment casting an ideal option for the production of industrial parts used in harsh working conditions, high temperatures and pressures.
High repeatability, consistent quality in series production, and the ability to precisely control the process have made precision casting a reliable choice for the oil and gas, petrochemical, water and wastewater, power plant, automotive, and advanced industrial equipment industries.
Investment casting steps
Investment casting stages at Mana Sanat Paydar Company
Wax Mold Design and Construction
The investment casting process begins with the engineering design of the part and the construction of a wax pattern. This pattern is made using precision wax injection molds and reproduces all the details of the final part, including dimensions, angles and thicknesses with high accuracy. The quality of the wax pattern has a direct impact on the dimensional accuracy, balance and performance of the final part.
Ceramic Casting and Dewaxing
Wax patterns are coated with ceramic slurry and refractory materials in stages to form a resistant and precise shell. After drying, this shell is exposed to heat to completely remove the wax and create a hollow mold with a completely precise shape of the part. This step plays an important role in creating a uniform surface, reducing casting defects and increasing the final quality of the part.
Melting, solidification and final finishing
After melting, the selected metal or alloy is poured into a ceramic mold under precise control of temperature and process conditions. After controlled solidification and cooling, the ceramic shell is broken and the part is removed. Finally, channel cutting, cleaning, surface finishing, and quality control are performed to produce a part with high strength, suitable dimensional accuracy, and ready for use in industrial applications.
