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hot forging heat treatment reducing decarburization scale prevention hot forging cost reduction metallurgy quench cracking heat treatment cost reduction machining reducing oxidation and scaling during heating. hot rolling shot blasting save furnace oil furnace energy leaks ceramic refractorycoating save furnace fuel furnace refractory refractory life prevent refractory corrosion energy saving tapping lubricant anti oxidation anti scale tapping graphite based lubricant no smoke emission forging oxidation forging lubricants refractory nitriding increase die life water soluble forging lubricant non polluting lubricant white lubricant gas nitriding eco friendly lubricants billet overheating scale pits rejections during hot rolling billet welding rolling mill breakdown increased fatigue life due to reduced decarburisat increased fatigue life of automobile products reduced fatigue life of automobile products casting die life pdc die life pressure die casting increasing die life forging die life aluminum presure die casting die life safe die lubricant spraying system die spray system carbide coating on die carbide coating refractory coating refractory problems quench crack prevention die lubrication pollution free hot forging white die lubricant environment friendly die lubrication closed die forging drop forging die lubricant scale free heat treatment metal forming preventing rejections in heat treatment graphite lubricant preventing scale pits on forgings successful re-heat treatment. decarburisation uniform hardness japanese cold-welding