公开(公告)号：US5381856A

公开(公告)日：1995-01-17

申请号：US132546

申请日：1993-10-06

申请人： Masahiro Fujikura ,  Takashi Sato ,  Toshio Yamada ,  Fumio Hasebe ,  Hiromi Chida

发明人： Masahiro Fujikura ,  Takashi Sato ,  Toshio Yamada ,  Fumio Hasebe ,  Hiromi Chida

IPC分类号： B22D11/06 ,  B22D11/10

CPC分类号： B22D11/0697

摘要： According to the present invention, in the PFC (planar flow casting) method, He gas at room temperature is blown onto the surface of a cooling roll at a flow rate of 0.1 to 5 liters/min.multidot.cm.sup.2 through a He gas blow nozzle provided upstream of a molten alloy (a puddle) ejected through a molten alloy ejection nozzle onto the surface of the cooling roll at a distance from the ejection nozzle, the distance from the surface of the cooling roll and an angle of inclination of the nozzle within respectively specified ranges, thereby forming a He gas atmosphere around the puddle, and a thin strip is dragged out of said puddle. This enables a thin amorphous alloy strip having a very small thickness and a smooth surface free from significant uneven portions and pores to be easily produced at a low cost without use of any vessel for regulating the atmosphere or an apparatus for heating the blown gas.

摘要翻译： 根据本发明，在PFC（平面流铸）法中，室温下的He气体以0.1〜5升/ min×cm 2的流量吹送到冷却辊的表面，通过设在上游的He气体喷嘴 熔融合金（熔池）通过熔融合金喷射喷嘴喷射到冷却辊表面上距离喷嘴一段距离处，与冷却辊表面的距离和喷嘴在各自规定范围内的倾斜角度 ，从而在熔池周围形成He气体气氛，并且将薄的条带从所述水坑中拖出。 这使得能够在没有任何用于调节气氛的容器的情况下使用非常小的厚度的非晶态合金条和具有不显着的不均匀部分和孔的光滑表面，以便以低成本容易地生产，或者用于加热吹入气体的装置。