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GB1065253A - Heat treatment of ceramic bonded or resin bonded grinding wheels and the like - Google Patents

Heat treatment of ceramic bonded or resin bonded grinding wheels and the like

Info

Publication number
GB1065253A
GB1065253A GB28526/65A GB2852665A GB1065253A GB 1065253 A GB1065253 A GB 1065253A GB 28526/65 A GB28526/65 A GB 28526/65A GB 2852665 A GB2852665 A GB 2852665A GB 1065253 A GB1065253 A GB 1065253A
Authority
GB
United Kingdom
Prior art keywords
workpieces
conveyer
hearth
grinding wheels
speed
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
GB28526/65A
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.)
Saint Gobain Abrasives Inc
Original Assignee
Norton Co
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 Norton Co filed Critical Norton Co
Publication of GB1065253A publication Critical patent/GB1065253A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/009—Tools not otherwise provided for
    • 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
    • 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 being carried by a conveyor
    • F27B9/2476—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 being carried by a conveyor the conveyor being constituted by air cushion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

1,065,253. Continuous furnaces. NORTON CO. July 6, 1965 [July 8, 1964], No. 28526/65. Heading F4B. Workpieces, particularly ceramic or resinbonded porous articles such as grinding wheels 11 are suspended above a refractory hearth 18 with numerous small evenly spaced perforations by gas under pressure and at the desired firing temperature directed through the perforations and are moved through the firing zone at a predetermined speed. The speed of travel is regulated by a positively driven conveyer 62 at the lower end of the slightly inclined hearth to less than the natural speed of travel under gravity, and workpieces are continuously fed to the furnace by a conveyer 65 so that the workpieces are in contact with each other. Hot gas from the combustion chamber 22 is recirculated through passages 16, 17 and insulated plenum chambers to the distribution chambers 27, 28, 29, 30 and air slides 66, 67 receive the workpieces from the conveyer 65 and feed them to the conveyer 62 respectively. The refractory walls and floor of the distribution chambers 24, 27, 28,29, 30 and the hearth 18 are held in place by springs 56, 57 to allow for thermal expansion.
GB28526/65A 1964-07-08 1965-07-06 Heat treatment of ceramic bonded or resin bonded grinding wheels and the like Expired GB1065253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US381051A US3325157A (en) 1964-07-08 1964-07-08 Firing of grinding wheels and the like in a tunnel furnace

Publications (1)

Publication Number Publication Date
GB1065253A true GB1065253A (en) 1967-04-12

Family

ID=23503457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28526/65A Expired GB1065253A (en) 1964-07-08 1965-07-06 Heat treatment of ceramic bonded or resin bonded grinding wheels and the like

Country Status (2)

Country Link
US (1) US3325157A (en)
GB (1) GB1065253A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2085137A (en) * 1980-10-08 1982-04-21 Otto & Co Gmbh Dr C Gas flow control device for industrial gas-fired systems

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2128930A5 (en) * 1971-03-09 1972-10-27 Ceraver
FR2303253A1 (en) * 1975-03-04 1976-10-01 Bertin & Cie COOLED TUNNEL OVEN WITH GROUND EFFECT
US4462796A (en) * 1982-05-19 1984-07-31 Micro Component Technology, Inc. Integrated circuit component handler movement and heating system
DE102004035276A1 (en) * 2004-07-21 2006-02-16 WS - Wärmeprozesstechnik GmbH Burner nozzle field with integrated heat exchangers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749109A (en) * 1952-07-24 1956-06-05 Selas Corp Of America Heating apparatus
GB990589A (en) * 1962-10-09 1965-04-28 Shelley Electric Furnaces Ltd Improvements relating to kilns and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2085137A (en) * 1980-10-08 1982-04-21 Otto & Co Gmbh Dr C Gas flow control device for industrial gas-fired systems

Also Published As

Publication number Publication date
US3325157A (en) 1967-06-13

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