Method For Manufacturing Steel Casts and Steel Casts Thus Manufactured

摘要

Method for manufacturing steel casts intended to obtain a wear element, comprising at least a step of preparing at least a reinforcement insert, and a step of preparing a mold for the cast to be manufactured, the step of preparing the mold providing a sub-step of positioning the at least one reinforcement insert inside the mold in the zones corresponding to the zones of the cast coinciding with those which, in use, will be the zones of the wear element most subjected to wear, and a subsequent step of casting steel inside the mold. The step of preparing at least one reinforcement insert provides the operations of filling a substantially filiform tubular container with a mixture of powders and or small pieces and of shaping, also spatially, the filled filiform tubular container to obtain the physical structure of said reinforcement insert.

主权项

1. A method for manufacturing steel casts, in particular but not exclusively manganese steel, intended to obtain a wear element, comprising at least a step of preparing at least a reinforcement insert, and a step of preparing a mold for the cast to be manufactured, said step of preparing said mold providing a sub-step of positioning said at least one reinforcement insert inside said mold in the zones corresponding to the zones of said cast coinciding with those which, in use, will be the zones of said wear element most subjected to wear, and a subsequent step of casting steel inside said mold, wherein said step of preparing at least one reinforcement insert provides the operations of filling a substantially filiform tubular container with a mixture of powder and/or small pieces having a base of iron and comprising at least carbon and chromium and one or more additional components selected between tungsten, molybdenum, vanadium and boron, and of shaping, also spatially, said filled filiform tubular container to obtain the physical structure of said reinforcement insert, at least part of the container and said mixture of powder and/or small pieces being brought to melting conditions and melted by endothermic action of the material cast.