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WO1999000534A1 - Procede de production d'une couche dure sur des outils, dispositif de frittage inductif ou de scellement de couches dures sur des poinçons ou des mandrins et poinçons et mandrins pour produire du verre creux - Google Patents

Procede de production d'une couche dure sur des outils, dispositif de frittage inductif ou de scellement de couches dures sur des poinçons ou des mandrins et poinçons et mandrins pour produire du verre creux Download PDF

Info

Publication number
WO1999000534A1
WO1999000534A1 PCT/EP1998/003107 EP9803107W WO9900534A1 WO 1999000534 A1 WO1999000534 A1 WO 1999000534A1 EP 9803107 W EP9803107 W EP 9803107W WO 9900534 A1 WO9900534 A1 WO 9900534A1
Authority
WO
WIPO (PCT)
Prior art keywords
hard
coating
mixture
liquid
sintering
Prior art date
Application number
PCT/EP1998/003107
Other languages
German (de)
English (en)
Inventor
Dieter KRÖNERT
Original Assignee
Firma Hermann Heye
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 Firma Hermann Heye filed Critical Firma Hermann Heye
Priority to EP98929382A priority Critical patent/EP0996768A1/fr
Publication of WO1999000534A1 publication Critical patent/WO1999000534A1/fr

Links

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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B9/00—Blowing glass; Production of hollow glass articles
    • C03B9/30—Details of blowing glass; Use of materials for the moulds
    • C03B9/48—Use of materials for the moulds
    • 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat

Definitions

  • the invention relates to a method for producing a hard layer on tools, a device for inductive sintering or melting of hard layers on press dies or levels, as well as press dies and levels for producing hollow glass.
  • the load spectrum acting in the glass production on the tools used for shaping the liquid or viscous glass, in particular press ram and level, is very complex and consists of a superimposition of various forces.
  • the tools In addition to high compressive forces, the tools also have high frictional forces and strong temperature changes. Due to these different types of stress, the selection of suitable hard layers and their production are particularly difficult, especially since the operating temperatures in glass processing are suitable for permanently changing the properties of hard layers.
  • the ram and level When producing hollow glass, the ram and level are first immersed in liquid or viscous glass and then pulled out again. So that the hollow glass blank formed is not damaged when the press rams and levels are exchanged on the glass, the press rams and levels used must have a surface that is as smooth as possible without grooves and pores so that glass does not get caught in such grooves or pores. It is therefore of particular importance that wear-reducing hard layers on press rams and pe gels for the production of hollow glass have a surface that is as smooth as possible over a long period of use.
  • DE-AS 20 06 953 discloses a method and a device for coating at least approximately rotationally symmetrical tools such as levels and press rams for the production of hollow glass.
  • a metal powder mixture of 83% nickel, 10% chromium, 2.5% iron, 2.25% silicon, 2.0% boron and carbon is applied to the material to be coated using a flame spray gun layered tools applied.
  • the device according to DE-AS 20 06 953 has guide means which ensure a constant distance between the spray gun and the tool.
  • the invention has for its object to provide a method for producing a hard layer on tools for processing liquid or viscous glass and an auxiliary device therefor, which the manufacture of high quality tools for processing liquid or viscous glass with an environmentally friendly use of raw materials and Enable energy.
  • the invention is also based on the object of providing high-quality press punches and levels for the production of hollow glass which can be produced using environmentally friendly raw materials and energy. This object is achieved according to the invention with the features of claims 1, 14, 15 and 16.
  • the coating material is mixed with a carrier liquid or carrier paste and then applied in this liquid or pasty mixture to a tool blank.
  • the coating material is completely applied to a tool blank, so that the spray losses which are unavoidable during flame spraying are avoided.
  • the mixture is dried on the tool blank and then sintered or melted, the hard layer being formed.
  • drying When drying, the carrier liquid or paste is evaporated almost completely, so that a pore-free hard layer is formed during sintering.
  • the shrinkage of the mixture of coating material and carrier liquid or carrier paste accompanying the drying causes the individual particles of the coating material to migrate closer together.
  • drying is preferably carried out using a warm air blower at 70 ° C.
  • the mixture is sintered or melted on the tool blank, the hard layer being formed.
  • the sintering or melting which is preferably carried out in a protective gas atmosphere, the last residues of the carrier liquid or carrier paste escape, so that the hard layer produced is pore-free.
  • the sintering or melting preferably takes place workpiece by workpiece and by inductive energy coupling. This avoids excessive heating of the base body and low energy consumption. The low energy coupling prevents the base body from becoming brittle.
  • the method mentioned is also low-emission and low-noise, combustion gases in particular being avoided.
  • the hard layer is preferably formed from a coating hard material and a coating matrix material. Because of the good connection to the base material, nickel or a nickel alloy is preferably used as the coating matrix material. A particularly uniform hard layer can be achieved if an agglomerated metal carbide is used as the coating hard material.
  • An agglomerated metal carbide can be produced by agglomeration and sintering, the metal carbide being first mixed with water and a water-soluble plastic binder to form a suspension.
  • This suspension is atomized in a spray dryer, whereby the water content evaporates and the particles are obtained as round, uniform micro pellets.
  • the mechanical strength of these green pellets can be further increased by an additional sintering process.
  • the round micropellets When producing a mixture of agglomerated metal carbide, such a coating matrix material and a carrier liquid or paste, the round micropellets can be evenly distributed in the mixture. In addition, the round micropellets do not hinder the flow of the coating matrix material in a subsequent melting process, so that uniform hard layers can be produced by using agglomerated metal carbide.
  • a particularly uniform hard layer can be produced if the liquid or paste-like mixture to be applied is as homogeneous as possible.
  • the coating material should be in grain sizes between 20 ⁇ m and 106 ⁇ m. If the coating material consists of several components, for example of at least one coating hard material and at least one coating matrix material, the coating hard material and the coating matrix material should first be mixed in the dry state before this mixture is then mixed with the carrier liquid or the carrier paste.
  • the carrier liquids or carrier pastes which can be used in the process for producing a hard layer preferably have a solvent, a dispersant and a binder. Organic substances should be used as solvents and binders since these largely prevent oxidation of the coating material. Polymers that are electrically charged and attach to the coating material can be used as dispersants.
  • the application of the liquid or paste-like mixture to the tool blank should preferably take place by means of a brush, an even layer being able to be produced by an additional uniform rotation of the tool blank.
  • the properties of a hard layer produced on tools for processing liquid or viscous glass essentially depend on the sintering or melting process.
  • the invention therefore not only provides a method for producing a hard layer on tools for processing liquid or viscous glass, but also a device for inductive sintering or melting of hard layers on press dies or levels.
  • This device can preferably be used in a method according to one of claims 1 to 13, but it is also suitable for the reworking of initially flame-sprayed layers on tools.
  • the device has an internally cooled induction coil which can be moved relative to a press ram or a level. The induction coil permits zone-by-zone heating or melting of the applied coating material without the base material being excessively heated.
  • the inductive energy coupling can also be set very specifically via the frequency selection, so that a low penetration depth of heat in the base material can be realized.
  • a device for the inductive sintering or melting of hard shafts on press rams or levels for the production of hollow glass according to the invention an optimal microstructure and formation of hard phases with a short period can be achieved through the selectable temperature, the selectable hold time and the selectable temperature penetration depth Reach cycle time.
  • a ripple resulting from application by means of carrier liquid or paste can be counteracted by mechanical reworking if a layer of about 0.5 - 0.6 mm is applied, which can be reduced to 0.3 mm.
  • FIG. 1 shows a first embodiment of a device according to the invention for inductive sintering or melting of hard layers on pressing dies or levels in a schematic representation
  • FIG. 2 shows a section through the device in FIG. 1 along the line II-II in FIG. 1,
  • Fig. 3 is a schematic representation of the arrangement of a pyrometer for temperature detection
  • FIG. 4 shows a second embodiment of a device according to the invention for inductive sintering or melting of hard layers on ram or level in a simplified representation.
  • the device 100 shown in FIGS. 1 and 2 for inductive sintering or melting of hard layers has a frame 102 which carries a processing chamber 106 enclosed by a hood 104.
  • the processing chamber has at its lower end a suction funnel 108 connected to a suction device (not shown).
  • a holding and moving device 110 Arranged in the interior of the processing chamber 106 is a holding and moving device 110, with which press punches 112 or levels to be machined can be moved in the direction of the double arrow A relative to an induction coil 114 fastened to the frame 102.
  • the induction coil 114 is fastened to the frame 102 via a height adjustment device 116.
  • the holding and moving device 110 is shown in detail in FIG. 2.
  • clamping screws 118 are provided on the holding and moving device 110, which engage the press die 112 in a section that is not to be machined.
  • the clamping screws 118 are carried by a rotatably mounted holder 120, which can be driven in rotation by a motor 122 via a first pulley 124, a V-belt 126 and a second pulley 128.
  • the tension of the V-belt 126 is adjustable by means of a tension roller 130.
  • a glass bell 134 fastened to a holder 132 is provided, which is connected at one end to a protective gas source via a hose 136 and has an opening 138 at its other end, which a slip on the press ram 112 and a gas outlet during processing allowed.
  • a device 100 for inductive sintering or melting provides a pyrometer 140 which determines the temperature prevailing at this point via the radiation detected on the workpiece in the area of the induction coil. If the induction coil 114 in a device 100 as in FIGS. 1 and 2 is stationary, the pyrometer can also be arranged in a stationary manner. The energy supply to the induction coil 114 and thus the temperature in the processing area can then be precisely controlled using the pyrometer 140 and a PID controller.
  • the device 200 shown in FIG. 4 for the inductive sintering or melting of hard layers differs from the device 100 according to FIGS. 1 and 2 essentially in that in this device 200 the induction coil 214 is movable and not arranged in a fixed position.
  • the levels 212 to be processed are placed on a turntable 242.
  • the induction coil 214 is then first turned over the level 212 in the direction of the arrow B with the turntable rotating and is retracted in the direction of the arrow C after the sintering or melting has ended.
  • a glass bell 234 is provided, as in the device 100 according to the first embodiment, which is connected to a protective gas source via a hose 236.
  • the glass bell 234 is held by a holder 232 and is moved together with the coil 214 in the vertical direction.
  • the protective gas for example argon, emerging at the lower end of the glass bell 234 in the area of the induction coil 214 prevents the oxidation.
  • the device 200 according to the second embodiment permits shorter devices than the device 100 according to the first embodiment Cycle times because the levels 212 are held in the device 200 solely because of their weight and do not require any special clamping. This applies in particular if positioning aids, for example stops or a depression corresponding to the base of the level, are arranged on the turntable 242.
  • the devices 100, 200 described above are particularly suitable for sintering or melting cold-applied coating material.
  • the coating systems described below are particularly suitable as coating material, which result in particularly good hard layers when sintered or melted down using the parameters set out below:
  • Width of the induction coil 2 x 5 mm diameter of the induction coil: 28 mm Average diameter of the levels: 18 mm
  • the tungsten carbide coating hard material mentioned in Table 1 has the properties shown in Table 2.
  • the tungsten carbide coating hard material can be replaced with the chrome carbide coating hard material also shown in Table 2. If chromium carbide is used as the coating hard material, the chromium carbide content should be approximately 20%. The travel speed should be 16 mm / min at a temperature of around 1150 ° C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

L'invention concerne un procédé permettant de produire une couche dure sur des outils pour travailler du verre liquide ou semi-liquide, des poinçons et des mandrins pour produire du verre creux, ainsi qu'un dispositif de frittage inductif ou de scellement de couches dures sur des poinçons ou des mandrins. Afin de permettre une utilisation écophile du matériau de recouvrement et de l'énergie pendant la production de couches dures, il est prévu de produire un mélange liquide ou pâteux à base de matériau de recouvrement et d'un liquide porteur ou d'une pâte porteuse, d'appliquer le mélange liquide ou pâteux sur une ébauche d'outil, de faire sécher le mélange sur l'ébauche d'outil et de fritter ou de sceller ledit mélange situé sur l'ébauche d'outil dans ladite ébauche, ce qui permet de former la couche dure. Le dispositif (100) obtenu selon l'invention comporte une bobine de self (114) à refroidissement intérieur, présentant au moins 1 1/2 enroulement (540°) et une unité de déplacement (110) permettant le déplacement mutuel de la bobine de self (114) et du poinçon (112) ou du mandrin le long d'un axe.
PCT/EP1998/003107 1997-06-27 1998-05-27 Procede de production d'une couche dure sur des outils, dispositif de frittage inductif ou de scellement de couches dures sur des poinçons ou des mandrins et poinçons et mandrins pour produire du verre creux WO1999000534A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98929382A EP0996768A1 (fr) 1997-06-27 1998-05-27 Procede de production d'une couche dure sur des outils, dispositif de frittage inductif ou de scellement de couches dures sur des poin ons ou des mandrins et poin ons et mandrins pour produire du verre creux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19727375.0 1997-06-27
DE1997127375 DE19727375C1 (de) 1997-06-27 1997-06-27 Verfahren zum Erzeugen einer Hartschicht auf Wekzeugen, Verwendung einer Vorrichtung zur Durchführung des Verfahrens sowie Preßstempel und Pegel zur Herstellung von Hohlglas

Publications (1)

Publication Number Publication Date
WO1999000534A1 true WO1999000534A1 (fr) 1999-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/003107 WO1999000534A1 (fr) 1997-06-27 1998-05-27 Procede de production d'une couche dure sur des outils, dispositif de frittage inductif ou de scellement de couches dures sur des poinçons ou des mandrins et poinçons et mandrins pour produire du verre creux

Country Status (3)

Country Link
EP (1) EP0996768A1 (fr)
DE (1) DE19727375C1 (fr)
WO (1) WO1999000534A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010674A3 (fr) * 1998-12-14 2000-12-20 Praxair S.T. Technology, Inc. Revêtement anti-collage pour moules de verrerie
US6722014B2 (en) * 2001-07-20 2004-04-20 Camax Tool Company, Inc. Energized sequential tool coating
JP2006016247A (ja) * 2004-07-01 2006-01-19 Nihon Yamamura Glass Co Ltd 焼付け潤滑離型剤層を有する成形用金型の製造方法
WO2006119962A2 (fr) 2005-05-10 2006-11-16 Fachhochschule Münster Revetement au four pouvant etre applique sous forme liquide
WO2013017523A1 (fr) * 2011-07-29 2013-02-07 Fachhochschule Münster Procédé d'application d'une couche de protection pour protéger de contraintes dues aux chocs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006023396B4 (de) * 2006-05-17 2009-04-16 Man B&W Diesel A/S Verschleißschutzbeschichtung sowie Verwendung und Verfahren zur Herstellung einer solchen
DE102016116886A1 (de) * 2016-09-08 2018-03-08 Fachhochschule Münster Verfahren zum Herstellen eines mit einer Schutzschicht versehenen metallischen Grundkörpers

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Publication number Priority date Publication date Assignee Title
EP0094759A2 (fr) * 1982-05-03 1983-11-23 Inductalloy Corporation Appareil et procédé pour la métallisation d'objets métalliques
US4789506A (en) * 1986-11-07 1988-12-06 Gas Research Institute Method of producing tubular ceramic articles
JPH06306635A (ja) * 1993-04-23 1994-11-01 Toyo Kohan Co Ltd 耐熱性鋼部材
JPH1046355A (ja) * 1996-07-31 1998-02-17 Tokushu Denkyoku Kk 金属管の表面処理法

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Publication number Priority date Publication date Assignee Title
DE1224272B (de) * 1964-02-29 1966-09-08 Siemens Ag Vorrichtung zum tiegelfreien Zonenschmelzen eines an seinen Enden gehaltenen stabfoermigen Koerpers
DE2006953C3 (de) * 1970-02-16 1978-08-24 Fa. Hermann Heye, 4962 Obernkirchen Vorrichtung zum Beschichten von rotationssymmetrischen Werkzeugen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094759A2 (fr) * 1982-05-03 1983-11-23 Inductalloy Corporation Appareil et procédé pour la métallisation d'objets métalliques
US4789506A (en) * 1986-11-07 1988-12-06 Gas Research Institute Method of producing tubular ceramic articles
JPH06306635A (ja) * 1993-04-23 1994-11-01 Toyo Kohan Co Ltd 耐熱性鋼部材
JPH1046355A (ja) * 1996-07-31 1998-02-17 Tokushu Denkyoku Kk 金属管の表面処理法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9503, Derwent World Patents Index; Class L01, AN 95-019748, XP002076970 *
PATENT ABSTRACTS OF JAPAN vol. 098, no. 006 30 April 1998 (1998-04-30) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010674A3 (fr) * 1998-12-14 2000-12-20 Praxair S.T. Technology, Inc. Revêtement anti-collage pour moules de verrerie
US6722014B2 (en) * 2001-07-20 2004-04-20 Camax Tool Company, Inc. Energized sequential tool coating
JP2006016247A (ja) * 2004-07-01 2006-01-19 Nihon Yamamura Glass Co Ltd 焼付け潤滑離型剤層を有する成形用金型の製造方法
EP1798207A4 (fr) * 2004-07-01 2007-09-26 Nihon Yamamura Glass Co Ltd Procédé servant à fabriquer un moule ayant une couche d'agent libérant un lubrifiant cuite
JP4502728B2 (ja) * 2004-07-01 2010-07-14 日本山村硝子株式会社 焼付け潤滑離型剤層を有する成形用金型の製造方法
AU2005258616B2 (en) * 2004-07-01 2010-07-29 Nihon Yamamura Glass Co., Ltd. Method for manufacturing mold having baked lubricant releasing agent layer
WO2006119962A2 (fr) 2005-05-10 2006-11-16 Fachhochschule Münster Revetement au four pouvant etre applique sous forme liquide
WO2006119962A3 (fr) * 2005-05-10 2007-03-22 Fachhochschule Muenster Revetement au four pouvant etre applique sous forme liquide
WO2013017523A1 (fr) * 2011-07-29 2013-02-07 Fachhochschule Münster Procédé d'application d'une couche de protection pour protéger de contraintes dues aux chocs
US9752235B2 (en) 2011-07-29 2017-09-05 Fachhochschule Muenster Workpiece comprising a laminate to protect against an impact stress

Also Published As

Publication number Publication date
EP0996768A1 (fr) 2000-05-03
DE19727375C1 (de) 1999-03-18

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