Manufacturers of All types of Ferrous precision Investment Castings by Lost Wax process in the range starting with few grams

INVESTMENT CASTING
The Investment Casting Process, also known as the lost wax process, is probably the process most commonly associated with the term precision casting. It is unique in the fact that its applications span the millenia, featuring in ancient civilizations and space-age technology. It is possible that the first investment casting was produced in Thailand around 4500 BC (1). Archeological evidence exists to show that the process was used in Mesopotamia during the period 4000 to 2000 BC; in China, India, Greece and Northern Europe during the period 2000 BC to Anno Domini; in Italy, Central and South America, West Africa and Western Europe in the period from Anno Domini to 1000 AD (1). Whilst noted for its use in the production of statuary and jewellery in the production of weaponry, tools and utensils.

PROCESS OUTLINE
The starting point for the process is the production of an expendable (usually wax ) pattern. This pattern is a precise component produced from a precision engineered die. Complex features may be obtained in the pattern by the use of multi-part dies or by the use of soluble wax cores or permanent ceramic cores. The wax patterns are assembled with the gating and feeding system and cleaned prior to their investment with the ceramic coating. This ceramic coating is built up through successive stages of dipping and stuccoing. The initial (primary) dip coat, containing a fine refractory, is allowed to get dry before the assembly is dipped in a secondary dip tank and stuccoed with coarser, dry particles in a raining cabinet or fluidised bed. Following gelation of the binder this procedure is repeated until the required shell thickness is obtained. On completion of the gelation stage the expendable wax pattern is removed and the ceramic shell fired to around 1000 Deg. C(1832 Deg. F) prior to casting.

SPECIFICATIONS MANUFACTURE
We manufacture Ferrous castings confirming to various International as well as Indian Standards. The most common are:

STAINLESS STEEL
Stainless Steel casting confirming to various grade e.g. SS-304 ,SS-316, SS-410L, SS-316L, CF8, CF8M, CD4MCu, 17.4PH, SS-420, EN-55, etc.

HEAT RESISTANCE STEEL
Heat resistance steel casting confirming various grade e.g. IS-4522, ASTM A-297 etc.

CORROSION RESISTANCE STEEL
Corrosion resistance steel casting confirming various grade e.g. IS-3444, ASTM A-296 etc.

PLAIN AND LOW ALLOY STEEL
Plain and low alloy steel casting confirming various grade e.g. ASTM A-216, BS-3100, IS-1030, EN-8, EN-9, EN-19, EN-24 etc.

S.G.IRON CASTING
S.G. Iron casting confirming various grade e.g. IS- 1865, ASTM A-536, etc.

SPECIAL ALLOY STEEL
Special alloy steel casting confirming various grade e.g. Alloy-20, Hastelloy-A,B,C etc