Advantages: Prolong the coagulation time2.55--2.9 multiple than the sand mold riser, the molten steel for feeding reduce 50-70%, the production ratio improved as much as 25--30%, it can reduce the contact area of the riser and the casting piece in the process of the top riser. Compared with the common sand mold riser, it can reduce 60--70% of the cutting and grinding area ,which reduce the fee of clearing and reduce the cost.
The loose shrinkage defect also can be eliminated if use exothermic Insulation Riser head. You can harvest stable casting pieces in the automatic molding line. It can be used for cooling the riser for its febrile. It can also reduce the pouring system ,which is good for nodular iron casting.
The features of the exothermic insulation riser head: The strength of this riser increases 50--70% than the common sand riser. There is little damage during molding, the air permeability is quite good, the thickness of the wall of the riser head is equality, the V shape centrum on the top of the closed riser can improve the adiabatic and feeding effect, also it can make the heat insulation performance and physical performance of the riser head more stable at the same time.
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Product Categories : Exothermic Heat Insulation Riser Sleeve
