Stainless Steel Investment Casting

Investment Casting The Process

• Formation of wax patterns are done by injecting wax into the moulds on automatic cycle control presses to ensure the consistent production of wax pattern in a controlled atmosphere. Patterns are then assembled in a form of a tree.
• The shelling process is to provide a hard ceramic coating on the wax tree by applying the number of ceramic coats depending upon the shape, size & weight of the article in a controlled atmosphere.
• Shells are stored in a controlled atmosphere between each coat for drying of coated ceramic.
• Melting is done in a line isolated medium frequency induction melting furnace to ensure precise control over the mental composition.
• Well equipped laboratory to test and ensure the accurate composition of the alloy casting after pouring.
• Finishing of cast articles are done by knockout machines, cutting machines grinding machines, Shot blasting machines depending upon the job handled. 
• Heat treatment of casting is done to get various properties by different processes like Normalizing, Carburizing, Salt Bath, Gas Carburizing, Nitriding, Annealing, etc.

Investment Casting Technology

• Our technology is totally indigenous and in a modified form, from that of the existing recent developed technologies used in major developing countries. Synthetic Wax, used for patterns with water-soluble wax/urea/ ceramic for the core. Water-based colloidal silica is used with Zicron, Zicronium dioxide, Fused Siliminate, Fused Silica, and Alluminate Silicates depending on the size, shape, a metal selected. 

Investment Casting Tools Design

• In house well-equipped design tool room to manufacture multi-cavity complex dies.
• Associations with tool rooms equipped with CNC wire cut, spark erosion, 3D pantograph machine.

Melting & Alloy Making

• Melting department equipped with ‘Line isolated medium frequency Induction Melting furnace’, supplied by world-leading company M/s Inductotherm.
• The melting and pouring operation is done under the strict supervision of the melting department supervisor.
• We make metals/alloys which cater to specific customers needs.
• In house laboratory to test the accurate composition of alloy casting.

Investment Casting-Quality Control

• We perform and document an initial sample inspection report of dimension and metallurgy.
• We complete all critical inspections required by our customers prior to shipment.
• We comply with standards like ASTM, AISI, DIN, GOST, JIS, BS, SAE, and IS.
• Our quality Assurance Laboratory includes Modern facilities and qualified technicians. A single spark optical emission spectrometer with 28 channels has been installed for the precise measurement of the chemical composition of all alloys.
• We perform physical & hardness tests in our house laboratory and perform fluorescent penetration inspection & ultrasonography & radiography of our casting with our associated laboratories.