JPS57134526A - Melting method for metal - Google Patents

Melting method for metal

Info

Publication number
JPS57134526A
JPS57134526A JP1739781A JP1739781A JPS57134526A JP S57134526 A JPS57134526 A JP S57134526A JP 1739781 A JP1739781 A JP 1739781A JP 1739781 A JP1739781 A JP 1739781A JP S57134526 A JPS57134526 A JP S57134526A
Authority
JP
Japan
Prior art keywords
crucible
metal
plasma arc
melting
water cooled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1739781A
Other languages
Japanese (ja)
Inventor
Hiroyuki Yamada
Takasumi Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP1739781A priority Critical patent/JPS57134526A/en
Publication of JPS57134526A publication Critical patent/JPS57134526A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enhance the melting yield and the energy efficiency by melting high grade metal in a water cooled crucible set in a plasma arc skull furnace in an inert atmosphere under prescribed melting conditions.
CONSTITUTION: A water cooled crucible 3 connected to the DC anode side of a tightly sealed container 1 is set in the container 1, and a plasma torch 5 connected to the cathode side is placed at an upper part of the crucible 3. Metal as starting material is put in the crucible 3 in the plasma arc skull furnace having said structure so that it contacts with the crucible will at 20W90% rate. The metal is then melted in an inert gaseous atmosphere under conditions which establish a relative equation P=A×D (where A is a constant of 0.6W1.5) between the diameter D(mm) of the crucible and the power P(kw) of plsma and adjust the length of plasma arc 11 from the tip of the torch 5 to the surface of molten metal 10 in the crucible 3 to 30W200mm.
COPYRIGHT: (C)1982,JPO&Japio
JP1739781A 1981-02-10 1981-02-10 Melting method for metal Pending JPS57134526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1739781A JPS57134526A (en) 1981-02-10 1981-02-10 Melting method for metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1739781A JPS57134526A (en) 1981-02-10 1981-02-10 Melting method for metal

Publications (1)

Publication Number Publication Date
JPS57134526A true JPS57134526A (en) 1982-08-19

Family

ID=11942854

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1739781A Pending JPS57134526A (en) 1981-02-10 1981-02-10 Melting method for metal

Country Status (1)

Country Link
JP (1) JPS57134526A (en)

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