The powder metallurgy process is a simple and straight process but it has to be administered in a very methodical and meticulous manner. Thanks to the vast experience and dedication of the people of SSPL family. The process has been very well established and being updated day by day- the thrust being continuous improvement.

The process consists of the following:-

A. MIXING: Mixing consists of blending of various powders, like Iron Powder, Copper Powder, Tin Powder, Lead Powder, Carbon, specialty lubricants & chemicals etc into a uniform non segregating powder mix.

B. COMPACTING: We have pressing capacity ranging from 5 tons up to 400 tons as on today and have plans to add equipments in near future. We have adopted the best possible tool design, tool rigs and tooling system for the production at higher densities.

C. SINTERING: We have state of art 18” wide mesh belt sintering furnace and 8” wide mesh belt sintering furnace. This gives us a flexibility of processing small batches and large batches separately.

D. SIZING: We have sizing presses ranging from 10T to 100T. By the use of Hard Metal tool elements in most cases we have established a highly productive and economical sizing practice.

E. HEAT TREATMENT: we have a fluidized bed gas carburizing and carbo nitriding furnace and an annealing (tempering) furnace. Hardening and tempering procedure are different composition and for different applications or the end use. These procedures have been very clearly spelled out in our process route and methodically adopted.

F. STEAM TREATMENT: Steam Treatment is a process of controlled oxidation of ferrous parts where the base metal Iron (Fe) and its oxides like ferrous oxide (FEO) are further oxidized to a more stable ferric oxide state.

This process prevents rusting of ferrous parts.

Secondary Operations

I. Machining operations like drilling, tapping, groove cutting, grinding are done in house. We have evolved specialty jigs and fixtures for the above.
II. Iron parts can be treated specially to prevent corrosion.
III. Finishing operations include dry & wet barreling, debarring and burnishing operations.