JPS5487618A - Walking type industrial furnace - Google Patents

Walking type industrial furnace

Info

Publication number
JPS5487618A
JPS5487618A JP15618577A JP15618577A JPS5487618A JP S5487618 A JPS5487618 A JP S5487618A JP 15618577 A JP15618577 A JP 15618577A JP 15618577 A JP15618577 A JP 15618577A JP S5487618 A JPS5487618 A JP S5487618A
Authority
JP
Japan
Prior art keywords
wbii
wbi
walking
over
heating
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
JP15618577A
Other languages
Japanese (ja)
Other versions
JPS5759286B2 (en
Inventor
Toshiaki Matsukawa
Kazuhiko Shimomura
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
Nippon Steel Plant Designing Corp
Original Assignee
Nittetsu Plant Designing Corp
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 Nittetsu Plant Designing Corp, Nippon Steel Corp filed Critical Nittetsu Plant Designing Corp
Priority to JP15618577A priority Critical patent/JPS5487618A/en
Publication of JPS5487618A publication Critical patent/JPS5487618A/en
Publication of JPS5759286B2 publication Critical patent/JPS5759286B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Reciprocating Conveyors (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)

Abstract

PURPOSE: To prevent decarburation of steel material through quick passage thereof at a high temperature section by changing the walking stroke with the walking beam divided lengthwise with respect to the furnace in heating a billet in a heating furance of walking type.
CONSTITUTION: A walking beam is divided into WBI and WBII in a heating furnace of walking type, which are connected by a connection cylinder 10. The connection cylinder 10 is provided with bypass circuit 25 and 25' which are equipped with flow regulating valves 16 and 19. When the billet to be heated is transferred from the walking beam WBII to the WBI, it moves slowly over the WBII at a temperature below 750°C under which the carburization hard to take place while it passes quickly over the WBI at a temperature ranging from 750 to 900°C under which the carburization is tended to take place. To achieve this, the bypass circuits 25 and 25' of the connection 10 is made open so that the speed of the material over the WBII is less than that over the WBI. Through the opening of the flow regulating valves 16 and 19, the stroke of the WBI is adjusted freely with respect to that of the WBII.
COPYRIGHT: (C)1979,JPO&Japio
JP15618577A 1977-12-24 1977-12-24 Walking type industrial furnace Granted JPS5487618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15618577A JPS5487618A (en) 1977-12-24 1977-12-24 Walking type industrial furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15618577A JPS5487618A (en) 1977-12-24 1977-12-24 Walking type industrial furnace

Publications (2)

Publication Number Publication Date
JPS5487618A true JPS5487618A (en) 1979-07-12
JPS5759286B2 JPS5759286B2 (en) 1982-12-14

Family

ID=15622212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15618577A Granted JPS5487618A (en) 1977-12-24 1977-12-24 Walking type industrial furnace

Country Status (1)

Country Link
JP (1) JPS5487618A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5371609A (en) * 1976-12-09 1978-06-26 Chugai Ro Kogyo Kaisha Ltd Separateetype movable bed furnace

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5371609A (en) * 1976-12-09 1978-06-26 Chugai Ro Kogyo Kaisha Ltd Separateetype movable bed furnace

Also Published As

Publication number Publication date
JPS5759286B2 (en) 1982-12-14

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