FR2259337A1 - Conveyor for heat treatment furnace - having tensioned belt on solid support driven by reciprocating ram - Google Patents

Conveyor for heat treatment furnace - having tensioned belt on solid support driven by reciprocating ram

Info

Publication number
FR2259337A1
FR2259337A1 FR7432524A FR7432524A FR2259337A1 FR 2259337 A1 FR2259337 A1 FR 2259337A1 FR 7432524 A FR7432524 A FR 7432524A FR 7432524 A FR7432524 A FR 7432524A FR 2259337 A1 FR2259337 A1 FR 2259337A1
Authority
FR
France
Prior art keywords
belt
hearth
furnace
heat treatment
supported
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
FR7432524A
Other languages
French (fr)
Other versions
FR2259337B1 (en
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.)
BOREL
Original Assignee
BOREL
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 BOREL filed Critical BOREL
Publication of FR2259337A1 publication Critical patent/FR2259337A1/en
Application granted granted Critical
Publication of FR2259337B1 publication Critical patent/FR2259337B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/243—Endless-strand conveyor
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

Heat treatment furnace for work pieces consists of a continuous belt supported on a solid hearth with a tensioning roller. Movement of the belt is achieved by to and fro movement of a shaft having a rounded end. As this moves the belt is moved along the hearth carrying the workpieces with it. When it retracts, the tensioning roller pulls the return rim of the belt back, causing the object to drop over the end. The tension is not sufficient to move the belt on the hearth. The shaft end is of semi-cylindrical form while the tensioning device is a weighted roller. Alternatively the belt can be tensioned by an adjustable spring loaded lever. Non-return devices are provided to provent the belt moving backwards. The belt and pusher device are mounted to the furnace housing but are removable. Of use in heat treatment processes including those with controlled atmospheres. Conventional furnaces have belts supported on rollers in the hot zone. These are liable to deformation under the temps. obtd. in the hot zone of the furnace. Even the plates in the belt can deform with time when red hot. The device described avoids this since the belt is supported on the furnace hearth at all times when carrying load.
FR7432524A 1974-01-25 1974-09-26 Conveyor for heat treatment furnace - having tensioned belt on solid support driven by reciprocating ram Granted FR2259337A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH102274A CH573580A5 (en) 1974-01-25 1974-01-25

Publications (2)

Publication Number Publication Date
FR2259337A1 true FR2259337A1 (en) 1975-08-22
FR2259337B1 FR2259337B1 (en) 1979-02-16

Family

ID=4200618

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7432524A Granted FR2259337A1 (en) 1974-01-25 1974-09-26 Conveyor for heat treatment furnace - having tensioned belt on solid support driven by reciprocating ram

Country Status (5)

Country Link
CH (1) CH573580A5 (en)
DE (1) DE2454925C3 (en)
ES (1) ES432499A1 (en)
FR (1) FR2259337A1 (en)
IT (1) IT1027578B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1012083B1 (en) * 1996-05-24 2002-08-07 Skaginn HF Handling device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113669591A (en) * 2021-08-23 2021-11-19 维沃移动通信有限公司 Supporting device and electronic equipment assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1012083B1 (en) * 1996-05-24 2002-08-07 Skaginn HF Handling device

Also Published As

Publication number Publication date
ES432499A1 (en) 1976-11-16
DE2454925C3 (en) 1978-09-14
IT1027578B (en) 1978-12-20
CH573580A5 (en) 1976-03-15
DE2454925B2 (en) 1978-01-12
FR2259337B1 (en) 1979-02-16
DE2454925A1 (en) 1975-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse