GB1208134A - Improvements in or relating to continuous carburising - Google Patents

Improvements in or relating to continuous carburising

Info

Publication number
GB1208134A
GB1208134A GB1355167A GB1355167A GB1208134A GB 1208134 A GB1208134 A GB 1208134A GB 1355167 A GB1355167 A GB 1355167A GB 1355167 A GB1355167 A GB 1355167A GB 1208134 A GB1208134 A GB 1208134A
Authority
GB
United Kingdom
Prior art keywords
chamber
carburizing
work
furnace
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.)
Expired
Application number
GB1355167A
Inventor
Alfred Harold Holden
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.)
Gibbons Brothers Ltd
Original Assignee
Gibbons Brothers 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 Gibbons Brothers Ltd filed Critical Gibbons Brothers Ltd
Priority to GB1355167A priority Critical patent/GB1208134A/en
Priority to DE19681758011 priority patent/DE1758011B1/en
Priority to NL6804093A priority patent/NL162967C/en
Priority to BE712659D priority patent/BE712659A/xx
Priority to AT287768A priority patent/AT290594B/en
Publication of GB1208134A publication Critical patent/GB1208134A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material

Abstract

1,208,134. Continuous carburizing furnaces. GIBBONS BROS. Ltd. 18 March, 1968 [22 March, 1967], No. 13551/67. Heading F4B. [Also in Division C7] In a continuous carburizing furnace comprising a heating chamber 19, a carburizing chamber 20 and a diffusing chamber 21, work to be treated is transferred from the heating chamber 19 to the carburizing chamber 20 through interconnecting door means 45 when the furnace inlet door 34 and the outlet door 61 are both closed. The work is carried on trays which are in turn supported on trackways (see Figs. 3 and 5). Pushers 139, 41, 44, 55 and 60 are provided where shown to advance the work through the furnace. The heating and carburizing chambers are each provided with radiant tube burners and with roof fans (see Figs. 2 and 4). The work, on leaving the diffusing chamber 21 via outlet door 61, thereafter passes through a quench tank 11, a washer 12 and a tempering furnace 13. Energization of the pushers and of the interconnecting door means is controlled by an electrical timing circuit (Fig. 7, not shown) to give the required sequence of operation. In a modification (Fig. 6, not shown), a separate diffusing chamber (70) incorporating heating elements and having a rotary hearth is provided at the downstream end of the carburizing chamber (71).
GB1355167A 1967-03-22 1967-03-22 Improvements in or relating to continuous carburising Expired GB1208134A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB1355167A GB1208134A (en) 1967-03-22 1967-03-22 Improvements in or relating to continuous carburising
DE19681758011 DE1758011B1 (en) 1967-03-22 1968-03-20 Continuous furnace for carburizing or carbonitriding
NL6804093A NL162967C (en) 1967-03-22 1968-03-22 CEMENTING OVEN.
BE712659D BE712659A (en) 1967-03-22 1968-03-22
AT287768A AT290594B (en) 1967-03-22 1968-03-22 Continuous furnace for carburizing or carbonitriding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1355167A GB1208134A (en) 1967-03-22 1967-03-22 Improvements in or relating to continuous carburising

Publications (1)

Publication Number Publication Date
GB1208134A true GB1208134A (en) 1970-10-07

Family

ID=10024993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1355167A Expired GB1208134A (en) 1967-03-22 1967-03-22 Improvements in or relating to continuous carburising

Country Status (5)

Country Link
AT (1) AT290594B (en)
BE (1) BE712659A (en)
DE (1) DE1758011B1 (en)
GB (1) GB1208134A (en)
NL (1) NL162967C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400680A1 (en) * 1977-08-20 1979-03-16 Aichelin Fa J Continuous heat treatment furnace for metallic workpieces - has common inlet and outlet lock with programmed doors for transporter
EP0147845A2 (en) * 1983-12-27 1985-07-10 Chugai Ro Co., Ltd. Method af gas carburizing and herdening and continuous furnace therefor
EP0829554A1 (en) * 1996-09-16 1998-03-18 ALD AICHELIN GesmbH. Low pressure cementation apparatus with compartments disposed one behind the other
EP1612291A1 (en) * 2004-06-25 2006-01-04 Fuji Jukogyo Kabushiki Kaisha Multistage continuous carburizing and quenching furnace and continuous carburizing and quenching method
CN114134453A (en) * 2021-12-01 2022-03-04 浙江求精科技有限公司 Heat treatment equipment and heat treatment method for hydraulic vane pump rotor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662996A (en) * 1970-03-23 1972-05-16 Holcroft & Co Multi-chamber carburizing apparatus
FR2335811A1 (en) * 1975-12-19 1977-07-15 Bertin & Cie PROCESS FOR HEATING FRAGMENTED MATERIALS BY CIRCULATION OF GAS THROUGH THEM AND OVEN APPLYING THIS PROCESS
US4049473A (en) * 1976-03-11 1977-09-20 Airco, Inc. Methods for carburizing steel parts
DE4034653A1 (en) * 1990-10-31 1992-05-07 Loi Ind Ofenanlagen Pusher-type furnace - divides row of containers into separate blocks at end of each push cycle for insertion of treatment zone dividing doors

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2400680A1 (en) * 1977-08-20 1979-03-16 Aichelin Fa J Continuous heat treatment furnace for metallic workpieces - has common inlet and outlet lock with programmed doors for transporter
EP0147845A2 (en) * 1983-12-27 1985-07-10 Chugai Ro Co., Ltd. Method af gas carburizing and herdening and continuous furnace therefor
EP0147845A3 (en) * 1983-12-27 1986-03-26 Chugai Ro Kogyo Co., Ltd. Method af gas carburizing and herdening and continuous furnace therefor
EP0829554A1 (en) * 1996-09-16 1998-03-18 ALD AICHELIN GesmbH. Low pressure cementation apparatus with compartments disposed one behind the other
EP1612291A1 (en) * 2004-06-25 2006-01-04 Fuji Jukogyo Kabushiki Kaisha Multistage continuous carburizing and quenching furnace and continuous carburizing and quenching method
CN114134453A (en) * 2021-12-01 2022-03-04 浙江求精科技有限公司 Heat treatment equipment and heat treatment method for hydraulic vane pump rotor

Also Published As

Publication number Publication date
DE1758011B1 (en) 1970-08-20
NL162967B (en) 1980-02-15
BE712659A (en) 1968-07-31
NL6804093A (en) 1968-09-23
NL162967C (en) 1980-07-15
AT290594B (en) 1971-06-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee