JPS56139272A - Manufacture of internally chilled steel ingot with core grid - Google Patents

Manufacture of internally chilled steel ingot with core grid

Info

Publication number
JPS56139272A
JPS56139272A JP4253580A JP4253580A JPS56139272A JP S56139272 A JPS56139272 A JP S56139272A JP 4253580 A JP4253580 A JP 4253580A JP 4253580 A JP4253580 A JP 4253580A JP S56139272 A JPS56139272 A JP S56139272A
Authority
JP
Japan
Prior art keywords
floating
molten steel
mold
core grid
funnel
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.)
Granted
Application number
JP4253580A
Other languages
Japanese (ja)
Other versions
JPH0117788B2 (en
Inventor
Takashi Koizumi
Takeyoshi Sakane
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP4253580A priority Critical patent/JPS56139272A/en
Publication of JPS56139272A publication Critical patent/JPS56139272A/en
Publication of JPH0117788B2 publication Critical patent/JPH0117788B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Continuous Casting (AREA)

Abstract

PURPOSE: To improve internal and external qualities, by interposing a cylindrical floating funnel which rises to the surface along with the elevation of the surface of molten steel, between the core grid and the inner peripheral surface of mold, and, at the same time, by performing casting while a covering material is floating on the surface of molten steel.
CONSTITUTION: Core grid 1 made of carbon steel and hanged by core grid supporting bar 5 is inserted into the center of mold 2, and cylindrical floating funnel 9 is placed on floating funnel table 8. Several number of containing bags 11 containing the covering material are installed between floating funnel 9 and mold 2. When the molten steel is charged from the bottom through cross gate 7 under this condition, floating funnel 9 rises to the surfaces and containing bag 11 is burnt by the heat of molten steel. Covering material 10 containing in containing bag 11 floats on the surface of molten steel between floating funnel 9 and mold 2 and melts, and prevents the molten steel from allowing to contact with mold 2. Moreover, floating funnel 9 floating to the surface prevents the covering material from sticking to core grid 1.
COPYRIGHT: (C)1981,JPO&Japio
JP4253580A 1980-03-31 1980-03-31 Manufacture of internally chilled steel ingot with core grid Granted JPS56139272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4253580A JPS56139272A (en) 1980-03-31 1980-03-31 Manufacture of internally chilled steel ingot with core grid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4253580A JPS56139272A (en) 1980-03-31 1980-03-31 Manufacture of internally chilled steel ingot with core grid

Publications (2)

Publication Number Publication Date
JPS56139272A true JPS56139272A (en) 1981-10-30
JPH0117788B2 JPH0117788B2 (en) 1989-04-03

Family

ID=12638763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4253580A Granted JPS56139272A (en) 1980-03-31 1980-03-31 Manufacture of internally chilled steel ingot with core grid

Country Status (1)

Country Link
JP (1) JPS56139272A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008002549A (en) * 2006-06-21 2008-01-10 Railway Technical Res Inst Method of manufacturing cast iron brake block for railway vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5575860A (en) * 1978-11-30 1980-06-07 Sumitomo Metal Ind Ltd Production of composite metal cast ingot

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5575860A (en) * 1978-11-30 1980-06-07 Sumitomo Metal Ind Ltd Production of composite metal cast ingot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008002549A (en) * 2006-06-21 2008-01-10 Railway Technical Res Inst Method of manufacturing cast iron brake block for railway vehicle
JP4583341B2 (en) * 2006-06-21 2010-11-17 財団法人鉄道総合技術研究所 Manufacturing method of cast iron control wheel for railway vehicle

Also Published As

Publication number Publication date
JPH0117788B2 (en) 1989-04-03

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