JPS57106468A - Method for decreasing erosion of refractories of molten steel ladle - Google Patents

Method for decreasing erosion of refractories of molten steel ladle

Info

Publication number
JPS57106468A
JPS57106468A JP18292080A JP18292080A JPS57106468A JP S57106468 A JPS57106468 A JP S57106468A JP 18292080 A JP18292080 A JP 18292080A JP 18292080 A JP18292080 A JP 18292080A JP S57106468 A JPS57106468 A JP S57106468A
Authority
JP
Japan
Prior art keywords
slag
refractories
lining
pyrophyllitic
acidic
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
JP18292080A
Other languages
Japanese (ja)
Inventor
Yoshimitsu Sakamoto
Yoshitsuru Kajiya
Tadayoshi Kitagawa
Noboru Okuyama
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 JP18292080A priority Critical patent/JPS57106468A/en
Publication of JPS57106468A publication Critical patent/JPS57106468A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To decrease the erosion of lining refractory materials with basic molten slag such as converter slag by lining the slag line part of the acidic lining refractories of a ladle or the like with an acidic slag modifier.
CONSTITUTION: The inside surface of a vessel 1 for molten steel such as ladle, tundish or the like is lined with inexpensive pyrophyllitic refractories of high spalling resistance and small coeffts. of thermal expansion. Since the pyrophyllitic refractories are acidic refractories, the basic converter molten slag 5 flowing into the vessel during receiving of molten steel from a converter or the like erodes the pyrophyllitic refractories. In order to prevent this, an acidic slag modi fier 3 such as volcanic ashes is beforehand sprayed to the slag line 2 of the lining refractories of the vessel 1. When the basic molten slag 5 from the converter contacts with the slag line 2, part of the modifier 3 penetrates into the slag 5 and forms a slag modifying layer 6 of small basicity in ring-shape, thereby decreasing the erosion of the pyrophyllitic lining refractories.
COPYRIGHT: (C)1982,JPO&Japio
JP18292080A 1980-12-25 1980-12-25 Method for decreasing erosion of refractories of molten steel ladle Pending JPS57106468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18292080A JPS57106468A (en) 1980-12-25 1980-12-25 Method for decreasing erosion of refractories of molten steel ladle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18292080A JPS57106468A (en) 1980-12-25 1980-12-25 Method for decreasing erosion of refractories of molten steel ladle

Publications (1)

Publication Number Publication Date
JPS57106468A true JPS57106468A (en) 1982-07-02

Family

ID=16126687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18292080A Pending JPS57106468A (en) 1980-12-25 1980-12-25 Method for decreasing erosion of refractories of molten steel ladle

Country Status (1)

Country Link
JP (1) JPS57106468A (en)

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