GB1471217A - Extrusion die - Google Patents

Extrusion die

Info

Publication number
GB1471217A
GB1471217A GB1913674A GB1913674A GB1471217A GB 1471217 A GB1471217 A GB 1471217A GB 1913674 A GB1913674 A GB 1913674A GB 1913674 A GB1913674 A GB 1913674A GB 1471217 A GB1471217 A GB 1471217A
Authority
GB
United Kingdom
Prior art keywords
pins
cutter
extrusion
passages
degrees
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
GB1913674A
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.)
General Refractories Co
Original Assignee
General Refractories 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 General Refractories Co filed Critical General Refractories Co
Publication of GB1471217A publication Critical patent/GB1471217A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/26—Extrusion dies
    • B28B3/269—For multi-channeled structures, e.g. honeycomb structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Milling Processes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1471217 Milling cutters GENERAL REFRACTORIES CO 1 May 1974 [2 May 1973] 19136/74 Heading B3K [Also in Divisions B1 B5 and C1] A ceramic catalyst support for an automotive pollution control device, or a heat exchanger, (see Divisions B1, C1 and F4), comprises an extruded dried and fired extrusion of circular periphery, having a plurality of parallel circular bars i.e. at least 100, or 195 or more bores per square inch, repeating in a pattern of bores hexagonally disposed and equally spaced axially around a central bore. The extrusion (see Divisions B4-B5) is effected from the Figs. 2 and 4 die, comprising a metal or plastics die plate 10, having a plurality of passages 18 for the ceramic and which, at its downstream end, is integrally formed with a plurality of spaced apart pins 20 defining the bores, and which are surrounded by a collar 12 defining the periphery of the extrusion. The pins 20 each overlap a portion of adjacent pairs of passages 18, and the ratio of the area 22 between the pins 20, to that of the passages 18, is between 0À65 to 1À0. The die plate 10 is preferably of cold rolled low carbon steel coated with electroless nickel to reduce corrosion and friction and the pins 20 are integrally formed in the plate 10 by milling the plate by the milling cutter 50, Figs. 8A and 8B, comprising an annular cutting head 52 having a pair of diametrically spaced radially extended cutting edges 56, each defined between an axially extending surface 60 and a helically extending surface having different inclinations 54, 58. The leading surface 54 makes an angle α, to the plane at right angles to the cutter axis, of 9 to 11 degrees and preferably 10 degrees. The surface 58 makes an angle B, to a plane parallel to the axis of the cutter of at least 55 degrees. As shown in Fig. 8B, the cutter comprises a radially thickened portion 62, of a length less than that of the pins being machined. The cutting portion of the cutter comprises steel hardened to a Rockwell hardness of 60 to 62.
GB1913674A 1973-05-02 1974-05-01 Extrusion die Expired GB1471217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35635773A 1973-05-02 1973-05-02

Publications (1)

Publication Number Publication Date
GB1471217A true GB1471217A (en) 1977-04-21

Family

ID=23401141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1913674A Expired GB1471217A (en) 1973-05-02 1974-05-01 Extrusion die

Country Status (5)

Country Link
JP (1) JPS5026808A (en)
DE (2) DE2462043A1 (en)
FR (1) FR2227936B1 (en)
GB (1) GB1471217A (en)
IT (1) IT1012600B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024174653A1 (en) * 2023-02-20 2024-08-29 思摩尔国际控股有限公司 Mold for manufacturing aerosol generation article

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535132Y2 (en) * 1976-03-03 1980-08-19
JPS5715054Y2 (en) * 1976-11-02 1982-03-29
JPS5951402B2 (en) * 1977-05-04 1984-12-13 日本碍子株式会社 Dies for honeycomb molding
JPS53137210A (en) * 1977-05-04 1978-11-30 Ngk Insulators Ltd Dies for molding honeycombs
DE3431892C2 (en) * 1984-08-30 1996-08-08 Corning Glass Works Low carbon steel die, process for making and using same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029922B2 (en) * 1972-11-16 1975-09-27
JPS5120435B2 (en) * 1973-03-02 1976-06-24
JPS511232A (en) * 1974-06-24 1976-01-07 Kubota Ltd TAMANEGIISHOKUKINIOKERU NAENOOKURISOCHI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024174653A1 (en) * 2023-02-20 2024-08-29 思摩尔国际控股有限公司 Mold for manufacturing aerosol generation article

Also Published As

Publication number Publication date
DE2421277A1 (en) 1974-11-14
JPS5026808A (en) 1975-03-19
FR2227936B1 (en) 1978-01-27
DE2421277B2 (en) 1976-10-14
IT1012600B (en) 1977-03-10
DE2462043A1 (en) 1975-12-11
FR2227936A1 (en) 1974-11-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee