EP3249071A1 - Formeinsatz mit erhöhter lebensdauer zum pressformen von stampfungen - Google Patents

Formeinsatz mit erhöhter lebensdauer zum pressformen von stampfungen Download PDF

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Publication number
EP3249071A1
EP3249071A1 EP16460035.5A EP16460035A EP3249071A1 EP 3249071 A1 EP3249071 A1 EP 3249071A1 EP 16460035 A EP16460035 A EP 16460035A EP 3249071 A1 EP3249071 A1 EP 3249071A1
Authority
EP
European Patent Office
Prior art keywords
stampings
mould
service life
insert
mould insert
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.)
Ceased
Application number
EP16460035.5A
Other languages
English (en)
French (fr)
Inventor
Kazimierz Sondej
Leszek Kozak
Antoni Orlowicz
Marek Mroz
Miroslaw Tupaj
Andrzej Trytek
Bogdan Kupiec
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.)
Zaklady Magnezytowe "ropczyce"
Original Assignee
Zaklady Magnezytowe "ropczyce"
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 Zaklady Magnezytowe "ropczyce" filed Critical Zaklady Magnezytowe "ropczyce"
Publication of EP3249071A1 publication Critical patent/EP3249071A1/de
Ceased legal-status Critical Current

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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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
    • B28B7/366—Replaceable lining plates for press mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/022—Moulds for compacting material in powder, granular of pasta form
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material

Definitions

  • the subject of the invention is a mould insert with extended service life for forming stampings by means of press moulding method, especially stampings from refractory materials in the form of powders or granulates.
  • the moulds for fabrication of cuboidal stampings out of powdered refractory materials known to date have usually a frame provided with a through opening with rectangular profile in which a die is mounted composed of four side monolithic plate-shaped inserts made of tool alloy steel of NC11 grade with hardness of 60HRC.
  • the objective of the present invention is to eliminate the above-quoted inconveniences characterising the plate-shaped steel mould inserts constituting the cavity of the mould used to fabricate the stampings.
  • the essential feature of the mould insert with extended service life for forming stampings by means of the press moulding method especially out of refractory materials in the form of powders or granulates, constituting one of linings of side walls of the mould die and made of alloy steel in the form of plate-shaped cuboidal solid consists in that its outer working surface is joined inseparably with a metallic coating with thickness of 0.2-0.4 mm and hardness of 2750-2785HV, whereas the coating contains in its composition 86-90% by weight of tungsten carbide and 10-14% by weight of cobalt.
  • the inseparable joint between the outer working surface of the mould insert with the metallic coating is made by means of plasma-spraying of powder with grain size (45 ⁇ 15) ⁇ m.
  • Fig. 1 shows the insert for the mould used to form stampings in a perspective view
  • Fig. 2 the same insert in the front view
  • Fig. 3 the same insert in vertical cross-section along line A-A
  • Fig. 4 the frame of the mould for fabrication of stampings, with rectangular die opening of the frame equipped with four inserts provided with metallic coatings on their working surfaces, in a perspective view.
  • the metallic coating 4 is deposited on surface 3 of the insert by means of plasma spraying a powder with grain size (45 ⁇ 15) ⁇ m containing tungsten carbides in a cobalt matrix whereas the powder contains 86% by weight of tungsten carbide and 14% by weight of cobalt in its composition creating thus a monolithic cuboidal solid.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Powder Metallurgy (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
EP16460035.5A 2016-03-21 2016-06-02 Formeinsatz mit erhöhter lebensdauer zum pressformen von stampfungen Ceased EP3249071A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL416553A PL240008B1 (pl) 2016-03-21 2016-03-21 Wkładka do formy o zwiększonej żywotności do formowania wyprasek

Publications (1)

Publication Number Publication Date
EP3249071A1 true EP3249071A1 (de) 2017-11-29

Family

ID=56409582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16460035.5A Ceased EP3249071A1 (de) 2016-03-21 2016-06-02 Formeinsatz mit erhöhter lebensdauer zum pressformen von stampfungen

Country Status (2)

Country Link
EP (1) EP3249071A1 (de)
PL (1) PL240008B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5445514A (en) * 1993-09-22 1995-08-29 Heitz; Lance A. Refractory material coated metal surfaces adapted for continuous molding of concrete blocks
EP0919345A1 (de) * 1997-11-25 1999-06-02 FOMB Officine Meccaniche Bongioanni S.r.l. Verfahren zum Einrichten einer mit auswechselbarer Formfläche Form für die Herstellung von Gegenständen aus Ton
EP1726421A2 (de) * 2005-05-27 2006-11-29 T.W.R. Sas Di Mario Doda & C. Formenmatrize zur Herstellung von Keramikgegenständen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5445514A (en) * 1993-09-22 1995-08-29 Heitz; Lance A. Refractory material coated metal surfaces adapted for continuous molding of concrete blocks
EP0919345A1 (de) * 1997-11-25 1999-06-02 FOMB Officine Meccaniche Bongioanni S.r.l. Verfahren zum Einrichten einer mit auswechselbarer Formfläche Form für die Herstellung von Gegenständen aus Ton
EP1726421A2 (de) * 2005-05-27 2006-11-29 T.W.R. Sas Di Mario Doda & C. Formenmatrize zur Herstellung von Keramikgegenständen

Also Published As

Publication number Publication date
PL416553A1 (pl) 2017-09-25
PL240008B1 (pl) 2022-02-07

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