JPS56109165A - High speed melting and mending device of slab surface - Google Patents

High speed melting and mending device of slab surface

Info

Publication number
JPS56109165A
JPS56109165A JP935280A JP935280A JPS56109165A JP S56109165 A JPS56109165 A JP S56109165A JP 935280 A JP935280 A JP 935280A JP 935280 A JP935280 A JP 935280A JP S56109165 A JPS56109165 A JP S56109165A
Authority
JP
Japan
Prior art keywords
molten pool
plasma
melting
slab
high speed
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
JP935280A
Other languages
Japanese (ja)
Inventor
Itsuo Ikuno
Toru Sato
Hidemaro Takeuchi
Takeshi Katayama
Koichi Takeda
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP935280A priority Critical patent/JPS56109165A/en
Publication of JPS56109165A publication Critical patent/JPS56109165A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To suppress waving of a molten pool and prevent the defective shape of the surface by keeping the charging eletric power of plasma torches in the rear stage in a slag melting direction at a valve below the predetermined value in melting and mending the slag surface by means of the plasma torches.
CONSTITUTION: Plasma torches 3-1 and 3-2 provided in parallel upward in the advancing direction of a slab 1 are caused to generate plasma arcs 5-1 and 5-2 by a driving coil 4, whereby the surface of the slab 1 is melted and a molten pool 11 is formed. At this time, the charging electric power for the plasma torch 3-2 in the rear stage of the melting direction of the molten pool 11 is kept at a predtermined value or below. Then, the waving of the molten pool 11 below the plasma torch 3-1 of the front stage is made smooth, and the molten pool solidifies.
COPYRIGHT: (C)1981,JPO&Japio
JP935280A 1980-01-31 1980-01-31 High speed melting and mending device of slab surface Pending JPS56109165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP935280A JPS56109165A (en) 1980-01-31 1980-01-31 High speed melting and mending device of slab surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP935280A JPS56109165A (en) 1980-01-31 1980-01-31 High speed melting and mending device of slab surface

Publications (1)

Publication Number Publication Date
JPS56109165A true JPS56109165A (en) 1981-08-29

Family

ID=11718068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP935280A Pending JPS56109165A (en) 1980-01-31 1980-01-31 High speed melting and mending device of slab surface

Country Status (1)

Country Link
JP (1) JPS56109165A (en)

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