A West Bengal based firm, Oilite Industries is one of the leading Manufacturers, Exporters and Suppliers of different types of products such as Sintered Bronze Bushes, Sintered Iron Rings, Sintered Washer, Sintered Bearings, Self Lubricating Bushes, PSM Rings, Oilite Bronze Bushes and Pre Shortening Inserts.
The Powder Metallurgy production technique excels when compared with the cost of other different metal shaping processes. Three important criteria characterize the process :
Approx 100 % material utilization (no scrap loss) : In spite of the fact that metal powder is more expensive than conventional steel, this difference is offset by the advantage of nearly 100 % material utilization. This holds for the typical PM part of less than 1 kg in weight and also for heavier parts, whereas the initial weight of the conventional steel blank is much greater than that of the machined part.
Wide variety of designs possible according to customer application needs : The large amount of design capability leads to parts that may combine several functions in one component, often replacing multiple piece assemblies made by blanking or machining.
Wide range of adaptability of material properties to the function of the components : The sintering costs are influenced by the required material quality, sintering temperature and time, protective atmosphere, but are fairly independent from parts geometry. The parameters of the manufacturing process are determined by the functional requirements of the component properties, related to the chemical composition, density and precision of the component. Cost comparison with competing technologies, such as stamping, cold extrusion, precision casting, precision forging and plastic moulding is strongly influenced by requirements of material, shape and production quantity. Even when machining is necessary due to close tolerances or to geometry, the overall economics of a sintered blank often turn out to be favourable. The PM shaping process is flexible to quantities.
Recognized Green Technology. (Environmental friendly) : A further significant advantage - the PM process saves natural resources through recycling, conserves raw materials and the manufacturing process yields low emissions.
Sintered Bearings Advantages : The Sintered Bearings have slightly open surface, porous structure and hence enables the tribology of the parts to be more consistent. Additionally, by infiltration of lubricants, the resistance to galling is dramatically improved. These parts are made using dies of steel or carbide that surround the powder. When high loads force the upper and lower punches together, the part is produced in the green state. The parts are then processed in a special sinter furnace as the final step.