FOREIGN MATERIAL INFLOW PREVENTION METHOD AND A FOREIGN MATERIAL INFLOW PREVENTION STRUCTURE OF A SCRAP IRON SOLID MATERIAL

摘要

PURPOSE: A foreign material inflow prevention method and a foreign material inflow prevention structure of a scrap iron solid material are provided to prevent the compressing of stone and soil by discharging the foreign material through a through hole.;CONSTITUTION: A foreign material inflow prevention method comprises next steps. A scrap iron constriction mold is manufactured. The manufactured mold is intalled at a compressor. The scrap iron is inputted. An anti-patches unit is selectively formed on the outer shape of a scrap steel structure(10). A mixing preventive measure is formed in the surface of the outer shape of the scrap steel structure. The mixing preventive measure is concavely formed in the central direction of the solid material.;COPYRIGHT KIPO 2011