DE2063585B2 - Process for removing erosion damage to surfaces of parts in high pressure and high temperature facilities - Google Patents

Process for removing erosion damage to surfaces of parts in high pressure and high temperature facilities

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Publication number
DE2063585B2
DE2063585B2 DE19702063585 DE2063585A DE2063585B2 DE 2063585 B2 DE2063585 B2 DE 2063585B2 DE 19702063585 DE19702063585 DE 19702063585 DE 2063585 A DE2063585 A DE 2063585A DE 2063585 B2 DE2063585 B2 DE 2063585B2
Authority
DE
Germany
Prior art keywords
pressure
synthesis
diamonds
erosion
erosion damage
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.)
Granted
Application number
DE19702063585
Other languages
German (de)
Other versions
DE2063585A1 (en
DE2063585C3 (en
Inventor
Walentin Nikolajewitsch Bakul
Alexandr Fedorowitsch Ljaschenko
Alexej Iosifowitsch Prichna
Wassilij Iwanowitsch Schitnezkij
Alexandr Alexandrowitsch Schulschenko
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.)
UKRAINSKIJ NAUTSCHNO-ISSLEDOWATEL'SKIJ KONSTRUKTORSKO-TECHNOLOGITSCHESKIJ INSTITUT SYNTETITSCHESKICH SWERCHTWJORDYCH MATERIALOW I INSTRUMENTA GOSPLANA KIEW (SOWJETUNION)
Original Assignee
UKRAINSKIJ NAUTSCHNO-ISSLEDOWATEL'SKIJ KONSTRUKTORSKO-TECHNOLOGITSCHESKIJ INSTITUT SYNTETITSCHESKICH SWERCHTWJORDYCH MATERIALOW I INSTRUMENTA GOSPLANA KIEW (SOWJETUNION)
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 UKRAINSKIJ NAUTSCHNO-ISSLEDOWATEL'SKIJ KONSTRUKTORSKO-TECHNOLOGITSCHESKIJ INSTITUT SYNTETITSCHESKICH SWERCHTWJORDYCH MATERIALOW I INSTRUMENTA GOSPLANA KIEW (SOWJETUNION) filed Critical UKRAINSKIJ NAUTSCHNO-ISSLEDOWATEL'SKIJ KONSTRUKTORSKO-TECHNOLOGITSCHESKIJ INSTITUT SYNTETITSCHESKICH SWERCHTWJORDYCH MATERIALOW I INSTRUMENTA GOSPLANA KIEW (SOWJETUNION)
Priority to DE19702063585 priority Critical patent/DE2063585C3/en
Publication of DE2063585A1 publication Critical patent/DE2063585A1/en
Publication of DE2063585B2 publication Critical patent/DE2063585B2/en
Application granted granted Critical
Publication of DE2063585C3 publication Critical patent/DE2063585C3/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B01J3/065Presses for the formation of diamonds or boronitrides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • B22F2007/068Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts repairing articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)
  • Carbon And Carbon Compounds (AREA)

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: Verfahren zur Beseitigung von Erosionsschäden an Oberflächen von Hartmetall- und Stahlteilen in den für die Synthese von Diamanten und anderen überharten Stoffen verwendeten Hochdruck- und Hochtemperatureinrichtungen, dadurch gekennzeichnet, daß ein Erosionsschaden an einer Teiloberfläche mit Pulver eines oder mehrerer hochschmelzender Metalle aus der Gruppe Nickel, Eisen, Kobalt, Mangan, Molybdän, Titan, Tantal, Wolfram, Chrom, Niob, Rhenium aufgefüllt und während der Synthese von Diamanten und anderen überharten Stoffen der gleichzeitigen Einwirkung von Druck und Temperatur unterworfen wird.Process for removing erosion damage to surfaces of hard metal and steel parts in the high pressure and high pressure used for the synthesis of diamonds and other superhard materials High-temperature devices, characterized in that erosion damage to a partial surface with powder of one or more refractory metals from the group of nickel, iron, cobalt, manganese, molybdenum, titanium, tantalum, Tungsten, chromium, niobium, rhenium and replenished during the synthesis of diamonds and others Superhard materials are subjected to the simultaneous effects of pressure and temperature. Die Erfindung bezieht sich auf ein Verfahren zur Beseitigung von Erosionsschäden an Oberflächen von Hartmetall- und Stahlteilen in den für die Synthese von Diamanten und kubischem Bornitrid verwendeten Einrichtungen. The invention relates to a method for removing erosion damage to surfaces of Carbide and steel parts in the facilities used for diamond and cubic boron nitride synthesis. Bekannt ist eine Einrichtung zur Erzeugung von Hochdruck und Hochtemperatur nach der US-PS 2 941 243, die unter anderem aus zwei Matrizen besteht, welche am Umfang mii Ringen umfaßt sind und an den einander gegenüberliegenden Stirnflächen zylindrische Vertiefungen haben, die eine Kammer bilden, worin man ein Reaktionsgefäß unterbringt. Um die Wärmeabfuhr vom Reaktionsgefäß zu vermindern und die Abnutzung durch Erosion beim Hochdruck- und Hochtemperaturbetrieb zu vermeiden, werden die Vertiefungen mit Aluminiumoxid oder mit einem anderen Wärmedämmstoff ausgefüllt. Der Nachteil der betrachteten Einrichtungen besteht darin, daß in den Hartmetallmatrizen zylindrische, mit einem Wärmedämmstoff ausgefüllte Vertiefungen vorhanden sind. Der Winkel zwischen Boden und Wand bildet bei einer solchen Vertiefung eine Spannungskonzentrationsstelle und setzt deshalb die Festigkeit und somit die Lebensdauer der Matrize herab. Einen weiteren Nachteil dieser Einrichtung stellt die Notwendigkeit dar, eine spezielle stromleitende Scheibe zu verwenden, um einen Stromkreis zwischen der Matrize in der Hockdruckeinrich-Jung und dem Reaktionsgefäß zu bilden. Bei einer Weiterbildung dieser Einrichtung werden nichtzylindrisehe, mit einem Wärmedämmstoff aufzufüllende Vertiefungen ausgeführt (US-PS 2 941 244).A device for generating high pressure and high temperature according to the US-PS is known 2 941 243, which among other things consists of two matrices, which are surrounded by rings on the circumference and have cylindrical recesses on the opposite end faces that form a chamber, in which a reaction vessel is placed. To reduce the heat dissipation from the reaction vessel and To avoid the wear and tear from erosion during high pressure and high temperature operation, the depressions become filled with aluminum oxide or some other thermal insulation material. The disadvantage of being considered Means is that in the hard metal matrices cylindrical, with a thermal insulation material filled wells are present. The angle between the floor and the wall forms with such a Deepening a stress concentration point and therefore sets the strength and thus the service life the die. Another disadvantage of this device is the need for a special Electrically conductive washer to be used to create a circuit between the die in the Hockdruckeinrich-Jung and to form the reaction vessel. In a further development of this facility, non-cylinder, executed with a thermal insulation material to be filled depressions (US Pat. No. 2,941,244). Zweck der Erfindung ist es, bei solchen Einrichtungen dennoch auftretende Erosionsschäden in wirtschaftlicher Weise zu beseitigen.The purpose of the invention is to reduce erosion damage in such devices in an economical manner Way to eliminate. ίο Die Lösung der gestellten Aufgabe ist erfindungsgemäß dadurch gekennzeichnet, daß ein Erosionsschaden an einer Teiloberfläche einer solchen Einrichtung mit Pulver eines oder mehrerer hochschmelzender Metalle aus der Gruppe Nickel, Eisen, Kobalt, Mangan, Molybdän. Titan, Tantal, Wolfram, Chrom, Niob, Rhenium aufgefüllt und während der Synthese von Diamanten und anderen überharten Stoffen der gleichzeitigen Einwirkung von Druck unterworfen wird.The solution to the problem posed is characterized according to the invention in that erosion damage to a partial surface of such a device with powder of one or more high-melting metals from the group of nickel, iron, cobalt, manganese, molybdenum. Titanium, tantalum, tungsten, chromium, niobium, rhenium are filled up and subjected to the simultaneous action of pressure during the synthesis of diamonds and other superhard materials. F i g. 1 zeigt durch Erosion abgenutzte Matrize und F i g. 2 dieselbe Matrize nach Beseitigung des Erosionsschadens. F i g. 1 shows die worn by erosion and FIG. 2 the same die after the erosion damage has been removed. Im Laufe des Betriebes von Hochdruck- und Hochtemperatur-Einrichtungen sind Hartmetall- und Stahlmatrizen einem Erosionsverschleiß bei der Synthese von Diamanten und anderen überharten Stoffen ausgesetzt, was zur Vergrößerung des Druckraumes und Verminderung der Lebensdauer der Einrichtung führt.In the course of the operation of high pressure and high temperature equipment Tungsten carbide and steel matrices are exposed to erosive wear during the synthesis of diamonds and other over-hard materials, which leads to an increase in the pressure space and a reduction in the service life of the device. Als Folge des ersteren Umstandes wird die Größe des zu erzeugenden Druckes bei ein und derselben Preßkraft verändert, wodurch auch Druck und Temperatur bei der Synthese verändert werden.As a result of the former, the amount of pressure to be generated becomes one and the same Press force changed, whereby pressure and temperature are changed during the synthesis. In F i g. 1 ist eine der mit Stahlringen 2 verbundenen Matrize 1 gezeigt, an welcher sich bei 3 ein Erosionsschaden ausgebildet hat. In Fig. 1 is one of those connected to steel rings 2 Die 1 is shown, on which at 3 an erosion damage has formed. In F i g. 2 ist dieselbe Matrize nach der Schadensbeseitigung dargestellt. Man füllt die Erosionsstelle mit Pulver eines oder mehrerer der genannten hochschmelzenden Metalle und unterwirft sie während der Synthese von Diamanten und anderen überharten Stoffen der gleichzeitigen Einwirkung von Hochdruck und Hochtemperatur. Dabei werden die hochschmelzenden Metallpulver mit dem Teil verschweißt.In Fig. 2 shows the same die after the damage has been removed. The erosion site is filled with Powder of one or more of the refractory metals mentioned and subjects them during synthesis of diamonds and other over-hard materials from the simultaneous action of high pressure and high temperature. The high-melting metal powders are welded to the part. Dadurch wird die Lebensdauer der Hochdruck- und Hochtemperatur-Einrichtung erhöht und die Stabilität des Synthesevorganges von Diamanten und anderen überharten Stoffen wiederhergestellt.This increases the service life of the high-pressure and high-temperature equipment and increases the stability the synthesis process of diamonds and other over-hard substances restored.
DE19702063585 1970-12-23 1970-12-23 Process for removing erosion damage to surfaces of parts in high pressure and high temperature facilities Expired DE2063585C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702063585 DE2063585C3 (en) 1970-12-23 1970-12-23 Process for removing erosion damage to surfaces of parts in high pressure and high temperature facilities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702063585 DE2063585C3 (en) 1970-12-23 1970-12-23 Process for removing erosion damage to surfaces of parts in high pressure and high temperature facilities

Publications (3)

Publication Number Publication Date
DE2063585A1 DE2063585A1 (en) 1972-09-21
DE2063585B2 true DE2063585B2 (en) 1974-11-07
DE2063585C3 DE2063585C3 (en) 1975-06-19

Family

ID=5792061

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702063585 Expired DE2063585C3 (en) 1970-12-23 1970-12-23 Process for removing erosion damage to surfaces of parts in high pressure and high temperature facilities

Country Status (1)

Country Link
DE (1) DE2063585C3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2600237A1 (en) * 1975-01-06 1976-07-08 United Technologies Corp METALLIC FILLER
DE4411680C1 (en) * 1994-04-05 1995-08-17 Mtu Muenchen Gmbh Repairing defects in protecting coatings of machinery
DE102008045983A1 (en) * 2008-09-05 2010-03-18 Mtu Aero Engines Gmbh Applying metallic layer on engine component, comprises applying metal powder mixture/metal powder on prefabricated engine component with/without binder by spraying, and binding and compressing metal powder mixture/metal powder on component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2600237A1 (en) * 1975-01-06 1976-07-08 United Technologies Corp METALLIC FILLER
DE4411680C1 (en) * 1994-04-05 1995-08-17 Mtu Muenchen Gmbh Repairing defects in protecting coatings of machinery
DE102008045983A1 (en) * 2008-09-05 2010-03-18 Mtu Aero Engines Gmbh Applying metallic layer on engine component, comprises applying metal powder mixture/metal powder on prefabricated engine component with/without binder by spraying, and binding and compressing metal powder mixture/metal powder on component

Also Published As

Publication number Publication date
DE2063585A1 (en) 1972-09-21
DE2063585C3 (en) 1975-06-19

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8328 Change in the person/name/address of the agent

Free format text: VON FUENER, A., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN