A METHOD AND A DEVICE FOR THE CRUCIBLE-FREE MELTING OF A MATERIAL AND FOR ATOMISING THE MELTED MATERIAL, FOR MANUFACTURING POWER,申请号CA20142934433-传众专利搜索

A METHOD AND A DEVICE FOR THE CRUCIBLE-FREE MELTING OF A MATERIAL AND FOR ATOMISING THE MELTED MATERIAL, FOR MANUFACTURING POWER

申请公布号：CA2934433(A1)

申请号：CA20142934433

申请日期：2014.12.19

申请公布日期：2015.06.25

申请人：

NANOVAL GMBH & CO. KG

发明人：GERKING, LUDER;GERKING, CHRISTIAN;STOBIK, MARTIN;HEINZ, RICO

分类号：B22F1/00;B22F9/08

主分类号：B22F1/00

摘要：The invention relates to a device (1) for melting a material without a crucible and for atomizing the melted material in order to produce powder, comprising: an atomizing nozzle (5); an induction coil (4) having windings (4a-d), which become narrower in the direction of the atomizing nozzle (5) at least in some sections; and a material bar (3) at least partially inserted into the induction coil (4). The induction coil (4) is designed to melt the material of the material bar (3) in order to produce a melt flow (16). The induction coil (4) and the atomizing nozzle (5) are arranged in such a way that the melt flow (16) is or can be introduced into the atomizing nozzle (5) through a first opening (20) of the atomizing nozzle (5) in order to atomize the melt flow (16) by means of an atomizing gas (19), which can be introduced into the atomizing nozzle (5). The device is characterized in that the atomizing nozzle (5) is designed in such a way that the atomizing gas (19) can be or is introduced into the atomizing nozzle (5) only through said first opening (20) of the atomizing nozzle (5); that the atomizing nozzle (5) is designed to accelerate the atomizing gas (19) at least up to the speed of sound of the atomizing gas (19) in a direction parallel to the melt flow (16); and that the material bar (3) and the induction coil (4) are arranged in such a way that the melt flow (16) can be or is inductively heated by the induction coil (4) before the melt flow (16) enters the atomizing nozzle (5). The invention further relates to a corresponding method for melting a material without a crucible and for atomizing the melted material in order to produce powder.