EP0052380A3 - Tool for shaping articles - Google Patents

Tool for shaping articles Download PDF

Info

Publication number
EP0052380A3
EP0052380A3 EP81109785A EP81109785A EP0052380A3 EP 0052380 A3 EP0052380 A3 EP 0052380A3 EP 81109785 A EP81109785 A EP 81109785A EP 81109785 A EP81109785 A EP 81109785A EP 0052380 A3 EP0052380 A3 EP 0052380A3
Authority
EP
European Patent Office
Prior art keywords
particles
tool
densely packed
cement
matrix
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.)
Withdrawn
Application number
EP81109785A
Other languages
German (de)
French (fr)
Other versions
EP0052380A2 (en
Inventor
Arne Andersen
Niels Jörgen Larsen
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.)
Aalborg Portland AS
Original Assignee
Aalborg Portland AS
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 Aalborg Portland AS filed Critical Aalborg Portland AS
Publication of EP0052380A2 publication Critical patent/EP0052380A2/en
Publication of EP0052380A3 publication Critical patent/EP0052380A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/20—Making tools by operations not covered by a single other subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Pens And Brushes (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

A tool for shaping articles, such as tools for drawing, bending, and vacuum shaping, e.g., for making automobile body parts, has an active shaped surface part which is made by casting a cement-bound material (15) directly against the corresponding surface part of the model (12). This cement­ bound material (15) has a coherent matrix comprising
A) homogeneously arranged inorganic solid particles of a size of from about 50 Å to about 0.5 µm, or a coherent structure formed from such homogeneously arranged particles, and
B) densely packed solid particles having a size of the order of 0.5 - 100 µm and being at least one order of magnitude larger than the respective particles stated under A), or a coherent structure formed from such densely packed particles, the particles B preferably being Portland cement particles.
Particles A are preferably ultrafine silica particles formed by growth from vapour phase and are substantially densely packed in the voids between the particles B. Particles A are especially present in an amount of 10 - 30% by volume, calculated on the combined volume of the particles A + B. Composite material for forming the matrix typically compris­ es Portland cement, ultrafine silica, water in low proportion, and a concrete superplasticizer in high proportion, optionally with additional bodies such as fibers, and is easily shape­ able.
Preferably, matrix additionally comprises particles which are of a strong material such as refractory grade bauxite. and is reinforced. Tool is easy to make and has a long useful life.
EP81109785A 1980-11-19 1981-11-19 Tool for shaping articles Withdrawn EP0052380A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK494080 1980-11-19
DK4940/80 1980-11-19

Publications (2)

Publication Number Publication Date
EP0052380A2 EP0052380A2 (en) 1982-05-26
EP0052380A3 true EP0052380A3 (en) 1982-09-15

Family

ID=8138039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109785A Withdrawn EP0052380A3 (en) 1980-11-19 1981-11-19 Tool for shaping articles

Country Status (6)

Country Link
EP (1) EP0052380A3 (en)
JP (1) JPH0470097B2 (en)
AU (1) AU7806481A (en)
BR (1) BR8108879A (en)
NO (1) NO822468L (en)
WO (1) WO1982001674A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078525A2 (en) * 1981-10-30 1983-05-11 Aktieselskabet Aalborg Portland-Cement-Fabrik A method of improving characteristic of a body
AU6337086A (en) * 1985-09-11 1987-04-07 Denki Kagaku Kogyo Kabushiki Kaisha Mold assembly
NL8801241A (en) * 1988-05-11 1989-12-01 Stamicarbon DIE AND METHOD FOR MANUFACTURING SUCH A DIE.
FR2640168B2 (en) * 1988-08-02 1994-09-02 Chausson Usines Sa PROCESS FOR THE MANUFACTURE OF RESIN CONCRETE TOOLS FOR FORMING, PARTICULARLY STAMPING, CUTTING AND THE LIKE, OF METAL SHEET PARTS
FR2635026B1 (en) * 1988-08-02 1994-05-27 Chausson Usines Sa PROCESS FOR THE MANUFACTURE OF RESIN CONCRETE TOOLS FOR FORMING, PARTICULARLY STAMPING, CUTTING AND THE LIKE, OF METAL SHEET PARTS
SU1609533A1 (en) * 1989-01-30 1990-11-30 Makazan Yurij S Die for sheet forming
EP1189736A1 (en) 1999-05-10 2002-03-27 Giantcode A/S Composite bodies
JP3839289B2 (en) * 2001-09-20 2006-11-01 本田技研工業株式会社 Concrete mold manufacturing method
EP2072205A1 (en) * 2007-12-17 2009-06-24 Rovalma SA Method for producing highly mechanically demanded pieces and specially tools from low cost ceramics or polymers
DE102014001947B4 (en) * 2014-02-12 2020-07-23 Audi Ag Die casting mold
CN114613559B (en) * 2022-03-30 2024-01-09 萍乡华创电气有限公司 High-strength column insulator and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042935B1 (en) * 1980-05-01 1988-10-26 Densit A/S Shaped article and composite material and method for producing same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US673822A (en) * 1900-10-10 1901-05-07 Harlan P Lloyd Process of manufacturing dies for forming metallic plates.
DE578397C (en) * 1932-06-11 1933-06-13 Ambi Budd Presswerk G M B H Die for pressing sheet metal or other sheet-like materials
GB404998A (en) * 1932-06-21 1934-01-22 Douglas Anderson Improvements in machines for working metal by bending, drawing and similar operations
US2885913A (en) * 1956-09-26 1959-05-12 Armstrong Cork Co Shearing die and method of forming the same
GB1084625A (en) * 1966-02-16 1967-09-27 Ford Motor Co Method of making a set of die facings for metal pressing operations
SE408385B (en) * 1976-01-28 1979-06-11 Volvo Ab PROVIDED IN THE MANUFACTURE OF DEEP DRAWING, MOLDING OR SPARKING ELECTRODES AND SIMILAR MATERIALS AND STAMPS OR OTHER DESIGNING TOOL PARTS OR PARTS
DE2759908C2 (en) * 1976-07-22 1990-09-13 Societe Europeenne Des Produits Refractaires, 92200 Neuilly-Sur-Seine concrete
FR2429763A1 (en) * 1978-06-26 1980-01-25 Produits Refractaires GAS PERMEABLE REFRACTORY PARTS
WO1980000959A1 (en) * 1978-11-03 1980-05-15 Allborg Portland Cement Shaped article and composite material and method for producing same
WO1981000252A1 (en) * 1979-07-13 1981-02-05 Aalborg Portland Cement Fiber-reinforced composite materials and shaped articles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042935B1 (en) * 1980-05-01 1988-10-26 Densit A/S Shaped article and composite material and method for producing same

Also Published As

Publication number Publication date
EP0052380A2 (en) 1982-05-26
JPH0470097B2 (en) 1992-11-10
JPS57501771A (en) 1982-10-07
BR8108879A (en) 1982-10-13
WO1982001674A1 (en) 1982-05-27
AU7806481A (en) 1982-06-07
NO822468L (en) 1982-07-16

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

PUAL Search report despatched

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TCAT At: translation of patent claims filed
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Representative=s name: JACOBACCI CASETTA & PERANI S.P.A.

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Designated state(s): AT BE CH DE FR GB IT LU NL SE

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Effective date: 19830307

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Effective date: 19850603

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ANDERSEN, ARNE

Inventor name: LARSEN, NIELS JOERGEN