公开(公告)号：US20140116202A1

公开(公告)日：2014-05-01

申请号：US14125657

申请日：2012-06-08

Applicant: Tuomo Mäkelä ,  Pekka Niemelä

Inventor： Tuomo Mäkelä ,  Pekka Niemelä

IPC: C21C5/00

CPC classification number: C21C5/005 ,  C21C5/5264 ,  C21C7/0006 ,  C21C7/0037 ,  C22B1/243 ,  C22C27/06 ,  Y02P10/216

Abstract: The invention relates to a method for improving the reduction degree of metal components in a chromite concentrate when smelting ferroalloy suitable for manufacturing of stainless steel. The chromite concentrate is fed together with nickel-containing raw material so that by means the amount of nickel-containing raw material it is achieved a desired reduction degree for the metal components of ferroalloy.

Abstract translation: 本发明涉及一种当冶炼适合制造不锈钢的铁合金时，提高铬铁矿精矿中金属成分还原度的方法。 铬铁矿浓缩物与含镍原料一起进料，通过这种方式获得了含镍原料的量，铁合金的金属组分达到所需的还原度。

公开(公告)号：US20140109724A1

公开(公告)日：2014-04-24

申请号：US14136038

申请日：2013-12-20

Applicant: Tuomo MÄKELÄ ,  Pekka NIEMELÄ

Inventor： Tuomo MÄKELÄ ,  Pekka NIEMELÄ

IPC: C22C1/02

CPC classification number: C22C1/02 ,  C22B1/11 ,  C22B1/20 ,  C22B1/243 ,  C22B23/023 ,  C22C19/052 ,  C22C27/06 ,  C22C30/00 ,  C22C35/005

Abstract: The invention relates to a method for producing a ferroalloy containing nickel. From a fine-grained raw material containing iron and chromium and a fine-grained raw material containing nickel, a mixture is formed with binding agent, the mixture is agglomerated so that first formed objects of desired size are obtained. The objects formed are heat treated in order to strengthen the objects so that the heat treated objects withstand conveyance and loading into a smelter furnace. Further, the objects are smelted under reducing circumstances in order to achieve ferrochromenickel, a ferroalloy of a desired composition containing at least iron, chromium and nickel.

Abstract translation: 本发明涉及一种含有镍的铁合金的制造方法。 从含有铁和铬的细粒原料和含有镍的细粒原料中，用粘合剂形成混合物，使混合物凝聚，从而获得所需尺寸的第一成形物体。 所形成的物体被热处理以加强物体，使得热处理物体承受输送和装载到冶炼炉中。 此外，在减少的情况下，物体被熔炼以得到铁铬铁合金，所述铁铬合金是至少包含铁，铬和镍的所需组成的铁合金。

公开(公告)号：US20110308352A1

公开(公告)日：2011-12-22

申请号：US13148661

申请日：2010-02-11

Applicant: Tuomo Mäkelä ,  Pekka Niemelä

Inventor： Tuomo Mäkelä ,  Pekka Niemelä

IPC: C22B5/00

CPC classification number: C22C1/02 ,  C22B1/11 ,  C22B1/20 ,  C22B1/243 ,  C22B23/023 ,  C22C19/052 ,  C22C27/06 ,  C22C30/00 ,  C22C35/005

Abstract: The invention relates to a method for producing a ferroalloy containing nickel. From a fine-grained raw material containing iron and chromium and a fine- grained raw material containing nickel, a mixture is formed with binding agent, the mixture is agglomerated so that first formed objects of desired size are obtained. The objects formed are heat treated in order to strengthen the objects so that the heat treated objects withstand conveyance and loading into a smelter furnace. Further, the objects are smelted under reducing circumstances in order to achieve ferrochromenickel, a ferroalloy of a desired composition containing at least iron, chromium and nickel.

Abstract translation: 本发明涉及一种含有镍的铁合金的制造方法。 从含有铁和铬的细粒原料和含有镍的细粒原料中，用粘合剂形成混合物，使混合物凝聚，从而获得所需尺寸的第一成形物体。 所形成的物体被热处理以加强物体，使得热处理物体承受输送和装载到冶炼炉中。 此外，在减少的情况下，物体被熔炼以得到铁铬铁合金，所述铁铬合金是至少包含铁，铬和镍的所需组成的铁合金。

公开(公告)号：US08696789B2

公开(公告)日：2014-04-15

申请号：US13148661

申请日：2010-02-11

Applicant: Tuomo Mäkelä ,  Pekka Niemelä

Inventor： Tuomo Mäkelä ,  Pekka Niemelä

IPC: C22C33/04 ,  C22C38/08 ,  C22B5/00 ,  C22B1/14

CPC classification number: C22C1/02 ,  C22B1/11 ,  C22B1/20 ,  C22B1/243 ,  C22B23/023 ,  C22C19/052 ,  C22C27/06 ,  C22C30/00 ,  C22C35/005

Abstract: The invention relates to a method for producing a ferroalloy containing nickel. From a fine-grained raw material containing iron and chromium and a fine-grained raw material containing nickel, a mixture is formed with binding agent, the mixture is agglomerated so that first formed objects of desired size are obtained. The objects formed are heat treated in order to strengthen the objects so that the heat treated objects withstand conveyance and loading into a smelter furnace. Further, the objects are smelted under reducing circumstances in order to achieve ferrochromenickel, a ferroalloy of a desired composition containing at least iron, chromium and nickel.

Abstract translation: 本发明涉及一种含有镍的铁合金的制造方法。 从含有铁和铬的细粒原料和含有镍的细粒原料中，用粘合剂形成混合物，使混合物凝聚，从而获得所需尺寸的第一成形物体。 所形成的物体被热处理以加强物体，使得热处理物体承受输送和装载到冶炼炉中。 此外，在减少的情况下，物体被熔炼以得到铁铬铁合金，所述铁铬合金是至少包含铁，铬和镍的所需组成的铁合金。