FI105945B - Sewage valve for a stroke piston combustion engine that operates according to the diesel principle and valve manufacturing process - Google Patents

Sewage valve for a stroke piston combustion engine that operates according to the diesel principle and valve manufacturing process Download PDF

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FI105945B
FI105945B FI923019A FI923019A FI105945B FI 105945 B FI105945 B FI 105945B FI 923019 A FI923019 A FI 923019A FI 923019 A FI923019 A FI 923019A FI 105945 B FI105945 B FI 105945B
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base body
valve
based alloy
residue
chuck portion
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FI923019A
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Finnish (fi)
Swedish (sv)
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FI923019A (en
FI923019A0 (en
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Hans Altorfer
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Waertsilae Nsd Schweiz Ag
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
    • F01L3/04—Coated valve members or valve-seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • 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
    • C23C4/073—Metallic material containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Lift Valve (AREA)
  • Heat Treatment Of Articles (AREA)

Description

1 1059451 105945

Dieselmenetelmällä toimivan iskumäntäpolttomoottorikoneen pakoventtiili ja venttiilin valmistusmenetelmäExhaust Valve and Valve Production Method for Diesel Piston Petrol Engine

Keksintö koskee dieselmenetelmällä toimivan iskumäntäpolttomoot-5 torikoneen pakoventtiiliä ja sen valmistusmenetelmää. Tarkemmin sanottuna on keksinnön kohteena patenttivaatimuksen 1 ja 2 johdanto-osan mukainen pako-venttiili ja sen valmistusmenetelmä patenttivaatimuksen 7 mukaan.The invention relates to an exhaust valve for a diesel piston combustion engine 5 and to a method of making it. More particularly, the invention relates to an exhaust valve according to the preamble of claims 1 and 2 and a method for its manufacture according to claim 7.

Jo ennestään tunnetaan sellaisia alussa mainittua tyyppiä olevia pa-koventtiileitä, jotka on valmistettu kokonaan lämmönkestävästä nikkelipohjai-10 sesta seoksesta Nimonic 80A:sta. Vaikka tämä seos kestääkin korkean kromi-pitoisuutensa vuoksi, joka on noin 20 %, hyvin korkeita lämpötiloja, polttomootto-rikoneen tehon ollessa hyvin suuri tästä seoksesta valmistettujen pakoventtiilien istukkapintaan on syntynyt korroosiovahinkoja. Korroosio muodostaa edetessään istukkapintaan syviä koloja, mikä aiheuttaa niin sanottua polttokaasujen 15 paikallista läpipuhallusta istukkapinnassa. Tämä edistää puolestaan korroosiota lämpötilan noustessa tietyssä kohdassa. Korroosio johtuu pääasiassa dieselpolttoaineessa olevasta vanadiinista ja natriumista. Tällaisen korroosion yksityiskohdat ovat myös tuttuja. Jos polttoaineessa on lisäksi vielä rikkiä, vanadiinin ja natriumin aiheuttama korroosio lisääntyy vielä sulfidoitumisesta johtuen.Pre-cured valves of the type mentioned above, which are made entirely of a heat-resistant nickel-based alloy of Nimonic 80A, are already known. Although this alloy is resistant to very high temperatures due to its high chromium content of about 20%, corrosion damage has occurred on the seat surface of the exhaust valves made from this alloy due to the high power of the internal combustion engine. As it proceeds, the corrosion forms deep recesses in the seating surface, causing so-called local blowing of the combustion gases 15 in the seating surface. This in turn promotes corrosion as the temperature rises at a certain point. The corrosion is mainly due to the presence of vanadium and sodium in diesel fuel. The details of such corrosion are also familiar. In addition, if sulfur is still present in the fuel, corrosion by vanadium and sodium will increase due to sulphidation.

20 Keksinnön tavoitteena on parantaa alussa mainittua tyyppiä olevaa pakoventtiiliä siten, että sen korroosionkestävyys on suurempi kuin Nimonic 80A:n kohdalla venttiilin ollessa kuitenkin samalla riittävän luja sekä perusrunko-että istukkaosastaan.It is an object of the invention to improve the exhaust valve of the type mentioned at the beginning so that it has a higher corrosion resistance than the Nimonic 80A, while being sufficiently strong both in its base body and in its seat.

t It I

Tähän päästään patenttivaatimuksen 1 tai 2 tunnusmerkkiosan mu-25 kaisella ratkaisulla. Keksinnön mukaisen pakoventtiilin edulliset suoritusmuodot · · ovat epäitsenäisten patenttivaatimusten 3-6 kohteena. Keksinnön mukaisen • 1 · ; V pakoventtiilin valmistusmenetelmä on patenttivaatimuksen 7 kohteena.This is achieved by a solution according to the characterizing part of claim 1 or 2. Preferred embodiments of the exhaust valve according to the invention are the subject matter of dependent claims 3-6. According to the invention, • 1 ·; The method of manufacturing a V exhaust valve is the subject of claim 7.

On todettu, että tämä yhdistelmärakenne vastaa parhaiten venttiilin ·/:1: istukkaosalle asetettavia vaatimuksia. Näihin vaatimuksiin kuuluvat hyvä ryö- 30 mylujuus, riittävä kovuus ja hyvä korroosionkestävyys vanadiinin ja natriumin ja ,···. mahdollisesti myös rikin ollessa kyseessä. Kokeet ovat osoittaneet, että keksin- • · Γ.1.# nön mukaista yhdistelmärakennetta olevissa venttiileissä korroosiomäärät ovat tuntuvasti pienempiä kuin tähänastisissa pakoventtiileissä, jotka on tehty koko-naan Nimonic 80A:sta. Keksinnön mukaisilla pakoventtiileillä varustettujen polt-35 tomoottorikoneiden tehoa voidaankin näin ollen lisätä.This combination design has been found to best meet the requirements of the valve · /: 1: seat section. These requirements include good shear strength, sufficient hardness and good corrosion resistance of vanadium and sodium and, ···. possibly also in the case of sulfur. Experiments have shown that the valves of the composite structure according to the invention have considerably less corrosion than the exhaust valves made so far made entirely from Nimonic 80A. Thus, the power of combustion engine machines with exhaust valves according to the invention can be increased.

«Il 2 105945«Il 2,105,945

Patenttivaatimuksen 1 mukainen seos tunnetaan IN 625 -merkkisenä ja patenttivaatimuksen 2 mukainen seos IN 671 -merkkisenä. Korroosionkestävyyteen nähden molemmilla istukkaosaseoksilla on paremmat arvot kuin Nimo-nic 80A -seoksella ja verrattaessa näitä istukkaseoksia toisiinsa seoksella 5 IN 625 on paremmat arvon kuin seoksella IN 671.The mixture of claim 1 is known as IN 625 and the mixture of claim 2 is known as IN 671. In terms of corrosion resistance, both chassis alloys have better values than Nimo-nic 80A and when compared to each other, 5 IN 625 has a better value than IN 671.

Istukkaosaseoksen sijoittamiseksi perusrungon päälle voidaan käyttää erilaisia menetelmiä, esimerkiksi plasmaruiskutusta, päällehitsausta tai myös jauhemetallurgisia menetelmiä.Various methods may be used to deposit the socket mixture on the base body, for example plasma spraying, welding or also powder metallurgical methods.

Erittäin edullinen menetelmä keksinnön mukaisen pakoventtiilin valio mistamiseksi on, että perusrungon päälle pannaan päällehitsauksena Nimonic-tyyppinen nikkelipohjainen seos istukkaosan alueella kerroksena, joka koostuu Inconel 625 -tyyppisestä nikkelipohjaisesta seoksesta, että muodostetun kerroksen vahvuutta ohennetaan sitten deformaation avulla, jolloin kerros saadaan kiinnittymään ja että näin muodostetulle venttiilirungolle annetaan sitten hehku-15 tuskäsittely.A very preferred method of fabricating the exhaust valve of the present invention is to apply a Nimonic-type nickel-based alloy over the base body as a layer consisting of an Inconel 625-type nickel-based alloy, to reduce the strength of the formed the valve body is then subjected to a glow-15 treatment.

Keksintöä selostetaan nyt lähemmin rakenne-esimerkkien avulla viittaamalla tällöin piirustukseen, joka on etukuva pakoventtiilistä, tarkemmin sanottuna kuvion oikealla puolella venttiili on puolivalmiissa tilassa ja kuvion vasemmalla puolella se on valmis.The invention will now be explained in more detail by way of structural examples with reference to the drawing, which is a front view of the exhaust valve, more particularly on the right side of the figure the valve is in a semi-finished state and on the left side of the figure.

20 Piirustuksen mukaan nelitahtipolttomoottorikoneen valmis pakovent- tiili 1, joka on lautasventtiili, käsittää perusrungon 2 ja siihen yhdistetyn kerroksen 3, joka muodostaa lautasventtiilin 1 istukkapinnan. Perusrunko 2 on nikkeli-pohjaista Nimonic 80A -seosta, jolla on valmistukseen liittyviä epäpuhtauksia lukuunottamatta seuraava koostumus painoprosentteina: 0,04- 0,10 C, < 1,0 Si, 25 < 0,2 Cu, < 1,0 Fe, < 1,0 Mn, 18,0- 21,0 Cr, 1,8-2,7 Ti, 1,0 -1,8 AI, < 2,0 Co, <; '···* 0,3 Mo, 0,0015 - 0,005 B, 0,04 - 0,1 Zr ja loput Ni. Kerros 3 on nikkelipohjaista : V seosta IN 625, jolla on valmistukseen liittyviä epäpuhtauksia lukuunottamatta • · *·.*·; painoprosentteina seuraava koostumus: <0,10C, <0,5 Si, <5Fe, <0,5Mn, 21 Cr, < 0,4 Ti, < 0,4 AI, <1,0 Co, 9 Mo, 3,6 Nb + Ta ja loput Ni. Kerros 3 on 30 muodostettu perusrunkoon 2 jo tunnetulla muodostusmenetelmällä, tarkemmin sanottuna 10- 12mm:n vahvuisena (3' ventiilin oikeassa puoliskossa). Tämä • · · .···. kerros kiinnitettiin sitten lämmön avulla valssausprosessissa, mikä parantaa ker- '·' roksen kovuutta. Deformaatioaste on tällöin noin 60% kerroksen 3' alkuperäi seen tilavuuteen verrattuna. Päällehitsauksella saadaan aikaan valurakenne, • ♦ · 35 jossa on dendriittisesti sijoitettua karbidia. Lämpökäsittelyn avulla homogenoi- y.tm daan korroosiolle edullinen karbidin jakautuminen, mikä vähentää korroosio- • · ♦ »· • · 3 105945 mahdollisuutta tai toisin sanoen parantaa korroosionkestävyyttä. Lämpökäsittelyn jälkeen venttiilille suoritettiin hehkutuskäsittely 550 - 650 °C:ssa. Hehkutuksen jälkeen istukan pinta viimeisteltiin hiomalla (3 venttiilin vasemmassa puoliskossa).According to the drawing, the finished exhaust valve 1 of the four-stroke internal combustion engine, which is a disc valve, comprises a base body 2 and a layer 3 connected thereto which forms the seat surface of the disc valve 1. Base Body 2 is a nickel-based Nimonic 80A alloy having the following composition by weight, except for manufacturing impurities: 0.04-0.10 C, <1.0 Si, 25 <0.2 Cu, <1.0 Fe, < 1.0 Mn, 18.0-21.0 Cr, 1.8-2.7 Ti, 1.0 -1.8 Al, <2.0 Co, <; '··· * 0.3 Mo, 0.0015 - 0.005 B, 0.04 - 0.1 Zr and the rest Ni. Layer 3 is a nickel-based: V alloy IN 625 with impurities other than manufacturing impurities • · * ·. * ·; by weight, the following composition: <0.10C, <0.5 Si, <5Fe, <0.5Mn, 21 Cr, <0.4 Ti, <0.4 Al, <1.0 Co, 9 Mo, 3.6 Nb + Ta and the rest Ni. The layer 3 is formed on the base body 2 by a known forming method, more particularly 10-12mm thick (3 'on the right side of the valve). This • · ·. ···. the layer was then heat-bonded during the rolling process, which improves the hardness of the layer. The degree of deformation is then about 60% of the original volume of the layer 3 '. Over-welding produces a cast structure, • ♦ · 35 with dendritically placed carbide. Heat treatment homogenizes the carbide distribution which is advantageous for corrosion, which reduces the possibility of corrosion, or in other words improves corrosion resistance. After the heat treatment, the valve was subjected to annealing at 550-650 ° C. After annealing, the surface of the socket was finished by grinding (on the left side of the 3 valves).

5 Selostuksessa rakenne-esimerkistä poiketen on myös mahdollista, että kerros 3 muodostetaan perusrungon 2 päälle plasmaruiskutuksella. Vals-saamalla tapahtuvan lämpömuotoilun asemesta muotoilu voidaan suorittaa myös takomalla. Muodostetun kerroksen kylmämuotoilu on myös mahdollista.In contrast to the construction example, in the description it is also possible that the layer 3 is formed on the base body 2 by plasma injection. Rather than forging by rolling, the design can also be performed by forging. Cold shaping of the formed layer is also possible.

Käytettäessä istukkaosaa varten Inconel 671 ja NiCrAlY -seoksia 10 muotoilua ja hehkutusta ei tarvita.When using the Inconel 671 and NiCrAlY blends 10 for the seat part, no shaping or annealing is required.

• · · • · « · • ♦ · • · · • ♦ · • · * · • « • 1 · • ♦ · • · ·♦· • ♦ · • · · • · · • 1 • · ·»· ««« • · • · «· · « «· • · · t · · • « t • · · • · · # · • · ·· • 1 1 1 1 · 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 «« «•« «« «« «« «i« i «i« i «i« i «i«.

Claims (11)

1. Avloppsventil för en slagkolvförbränningsmotor som fungerar en-ligt dieselprincipen och förfarande för framställning av ventilen, vilken utström-ningsventil (1) omfattar en baskropp (2), som bestar av en värmebeständig 5 nickelbaserad legering, vilken baskropp (2) uppvisar ett chuckparti, varvid sammansättningen av baskroppens (2) värmebeständiga nickelbaserade legering är, förutom föroreningar som förorsakats under tillverkningen, i viktprocent den följande: 0,04- 0,10 C, <1,0 Si, ^ 0,2 Cu, £1,0 Fe, <1,0Mn, 18,0-21,0 Cr, 1,8 - 2,7 Ti, 1,0-1,8 AI, < 2,0 Co, < 0,3 Mo, 0,0015 - 0,005 B, 0,04 -10 0,1 Zr, resten Ni, eller: 0,05 C, < 0,5 Si, < 0,2 Cu, <1,0 Fe, < 0,5 Mn, 29 - 31 Cr, 1,5- 2 Ti, 0,7- 1,0 AI, <2,0 Co, <0,3Mo, 0,0015- 0,0022 B, 0,05- 0,07 Zr, restren Ni, k ä n n e t e c k n a d av att chuckpartiet är formad som ett skikt (3) av en annan nickelbaserad legering som är förenad med baskroppen (2) och vars sammansättning, förutom föroreningar som förorsakats under tillverk-15 ningen, i viktprocent är den följande: < 0,10 C, < 0,5 Si, < 0,5 Fe, < 0,5 Mn, 20 -22 Cr, < 0,4 Ti, < 0,4 AI, < 1,0 Co, 8,0 - 9,5 Mo, 3,15 - 4,15 Nb + Ta, resten Ni.A discharge valve for a stroke piston combustion engine operating according to the diesel principle and method of producing the valve, said outflow valve (1) comprising a base body (2) consisting of a heat-resistant nickel-based alloy, said base body (2) having a chuck , wherein the composition of the heat-resistant nickel-based alloy of the base body (2) is, in addition to impurities caused during manufacture, the following by weight: 0.04 - 0.10 C, <1.0 Si, ^ 0.2 Cu, £ 1.0 Fe, <1.0Mn, 18.0-21.0 Cr, 1.8-2.7 Ti, 1.0-1.8 Al, <2.0 Co, <0.3 Mo, 0.0015 - 0.005 B, 0.04 -10 0.1 Zr, residue Ni, or: 0.05 C, <0.5 Si, <0.2 Cu, <1.0 Fe, <0.5 Mn, 29 - 31 Cr, 1.5-2 Ti, 0.7-1.0 AI, <2.0 Co, <0.3 Mo, 0.0015-0.0022 B, 0.05-0.07 Zr, residual Ni, characterized in that the chuck portion is formed as a layer (3) of another nickel-based alloy which is joined to the base body (2) and whose composition, in addition to impurities causing added in weight, as follows: <0.10 C, <0.5 Si, <0.5 Fe, <0.5 Mn, 20 -22 Cr, <0.4 Ti, <0 , 4 AI, <1.0 Co, 8.0 - 9.5 Mo, 3.15 - 4.15 Nb + Ta, the rest Ni. 2. Utströmningsventil för en slagkolvförbränningsmotor som fungerar enligt dieselprincipen, vilken utströmningsventil (1) omfattar en baskropp (2), som bestär av en värmebeständig nickelbaserad legering, vilken baskropp 20 (2) uppvisar ett chuckparti, varvid sammansättningen av baskroppens (2) vär mebeständiga nickelbaserade legering, förutom föroreningar som förorsakats under tillverkningen, i viktprocent är den följande: 0,04 - 0,10 C, < 1,0 Si, < 0,2 Cu, <1,0 Fe, <1,0 Mn, 18,0- 21,0 Cr, 1,8- 2,7 Ti, 1,0- 1,8 AI, < 2,0 Co, <0,3Mo, 0,0015- 0,005 B, 0,04- 0,1 Zr, resten Ni, eller: 0,05 C, < 0,5 Si, 25 <0,2 Cu, < 1,0 Fe, <0,5Mn, 29- 31 Cr, 1,5- 2 Ti, 0,7- 1,0 AI, <2,0 Co, ’···’ < 0,3 Mo, 0,0015 - 0,0022 B, 0,05 - 0,07 Zr, restren Ni, kännetecknad av ·· · : att chuckpartiet är formad som ett skikt (3) av en annan nickelbaserad legering • · :.‘1i som är förenad med baskroppen (2), vars sammansättning, förutom förore- ningar som förorsakats under tillverkningen, i viktprocent är den följande: 30 0,04 - 0,05 C, 47 - 49 Cr, 0,3 - 0,40 Ti, resten Ni.An outflow valve for a stroke piston internal combustion engine operating according to the diesel principle, said outflow valve (1) comprises a base body (2) consisting of a heat-resistant nickel-based alloy, said base body 20 (2) having a chuck portion, said composition of said base body (2) Nickel-based alloys, in addition to impurities caused during manufacture, in weight percent are as follows: 0.04 - 0.10 C, <1.0 Si, <0.2 Cu, <1.0 Fe, <1.0 Mn, 18 , 2.0-2.0 Cr, 1.8-2.7 Ti, 1.0-1.8 Al, <2.0 Co, <0.3 Mo, 0.0015-0.005 B, 0.04-0, 1 Zr, residue Ni, or: 0.05 C, <0.5 Si, 25 <0.2 Cu, <1.0 Fe, <0.5Mn, 29-31 Cr, 1.5-2 Ti, 0 , 7- 1.0 AI, <2.0 Co, '···' <0.3 Mo, 0.0015 - 0.0022 B, 0.05 - 0.07 Zr, residue Ni, characterized by ·· ·: That the chuck portion is formed as a layer (3) of another nickel-based alloy; · 1i which is joined to the base body (2), the composition of which, in addition to impurities caused by In the manufacture, by weight is as follows: 0.04 - 0.05 C, 47 - 49 Cr, 0.3 - 0.40 Ti, the remainder Ni. 3. Ventil enligt patentkrav 1 eller 2, kännetecknad av att lege- • · 1 ,···. ringen som formar chuckpartiet är formad pa baskroppen (2) med plasmasprut- ning.Valve according to Claim 1 or 2, characterized in that • • 1, ···. the ring forming the chuck portion is formed on the base body (2) with plasma injection. 4. Ventil enligt patentkrav 1 eller 2, kännetecknad av att lege- II· :.. .’· 35 ringen som formar chuckpartiet är formad pä baskroppen (2) med päsvetsning. • 1 « « • 1 · • · 105945Valve according to Claim 1 or 2, characterized in that the alloy forming the chuck portion is formed on the base body (2) with a weld. • 1 «« • 1 · • · 105945 5. Ventil enligt patentkrav 3 eller 4,kännetecknad avatt lege-ringen som formar chuckpartiet är kallbearbetad efter dess applicering.5. Valve according to claim 3 or 4, characterized in that the alloy forming the chuck portion is cold worked after its application. 6. Ventil enligt patentkrav 3 eller 4,kännetecknad avatt lege-ringen som formar chuckpartiet är varmbearbetad efter dess applicering. ' 56. Valve according to claim 3 or 4, characterized in that the alloy forming the chuck portion is hot worked after its application. '5 7. Förfarande för tillverkning av en ventil enligt patentkrav 1 eller 2, kännetecknat av att pä en baskropp (2), som är av en värmebeständig nickelbaserad legering, varvid sammansättningen av baskroppens (2) värme-beständiga nickelbaserade legering, förutom föroreningar som förorsakas under tillverkningen, i viktprocent är den följande: 0,04- 0,10 C, < 1,0 Si, < 0,2 10 Cu, <1,0 Fe, <1,0 Mn, 18,0- 21,0 Cr, 1,8- 2,7 Ti, 1,0- 1,8 AI, < 2,0 Co, < 0,3 Mo, 0,0015- 0,005 B, 0,04- 0,1 Zr, resten Ni, eller: 0,05 C, < 0,5 Si, <0,2 Cu, <1,0 Fe, <0,5Mn, 29- 31 Cr, 1,5- 2 Ti, 0,7- 1,0 AI, <2,0 Co, <0,3Mo, 0,0015- 0,0022 B, 0,05- 0,07 Zr, resten Ni formas pä omrädet av chuckpartiet ett skikt (3) av en annan nickelbaserad legering genom päsvets-15 ning, vars sammansättning, förutom föroreningar som förorsakas under tillverkningen, i viktprocent är den följande: < 0,10 C, < 0,5 Si, < 5 Fe, < 0,5 Mn, 20 - 22 Cr, < 0,4 Ti, < 0,4 AI, < 1,0 Co, 8,0 - 9,5 Mo, 3,15 - 4,15 Nb + Ta, resten Ni eller 0,04 - 0,05 C, 47 - 49 Cr, 0,3 - 0,40 Ti, resten Ni , och att det formade skiktets (3) tjocklek minskas därefter genom formning och varefter skiktet (3) 20 förstärks och att den pä sä sätt astadkomna ventilkroppen utsätts därefter för an glödgningsbehandling.Process for the manufacture of a valve according to claim 1 or 2, characterized in that on a base body (2) which is of a heat-resistant nickel-based alloy, wherein the composition of the heat-resistant nickel-based alloy of the base body (2), in addition to impurities caused by production, by weight, is as follows: 0.04 - 0.10 C, <1.0 Si, <0.2 Cu, <1.0 Fe, <1.0 Mn, 18.0 - 21.0 Cr , 1.8 - 2.7 Ti, 1.0 - 1.8 AI, <2.0 Co, <0.3 Mo, 0.0015 - 0.005 B, 0.04 - 0.1 Zr, residue Ni, or: 0.05 C, <0.5 Si, <0.2 Cu, <1.0 Fe, <0.5Mn, 29-31 Cr, 1.5-2 Ti, 0.7-1.0 AI , <2.0 Co, <0.3 Mo, 0.0015 - 0.0022 B, 0.05 - 0.07 Zr, the residue Ni is formed in the area of the chuck portion a layer (3) of another nickel based alloy by The composition of which, in addition to impurities caused during manufacture, in weight percent, is as follows: <0.10 C, <0.5 Si, <5 Fe, <0.5 Mn, 20 - 22 Cr, <0.4 Ti, <0.4 AI, <1.0 Co, 8.0 - 9.5 Mo, 3.15 - 4.15 Nb + Ta, the residue Ni or 0.04 - 0.05 C, 47 - 49 Cr, 0.3 - 0.40 Ti, the residue Ni, and that the thickness of the shaped layer (3) is then reduced by forming and then the layer (3) is strengthened. and that the valve body thus formed is then subjected to annealing treatment. 8. Förfarande enligt patentkrav 7, k ä n n e t e c k n a t av att det formade skiktets (3) formning sker i varmt tillständ.8. A method according to claim 7, characterized in that the forming of the shaped layer (3) takes place in a warm state. 9. Förfarande enligt patentkrav 7, kännetecknat av att skik-25 tets (3) formning sker genom valsning. • · *”·1Method according to Claim 7, characterized in that the forming of the layer (3) takes place by rolling. • · * ”· 1 10. Förfarande enligt patentkrav 7, kännetecknat av att de- : V formationsgraden är 30 - 50% av den formade volymen. • · :.2iMethod according to claim 7, characterized in that the degree of formation is 30 - 50% of the formed volume. • ·: .2i 11. Förfarande enligt patentkrav 7, kännetecknat av att ϊ : glödgningsbehandlingen sker vid en temperatur mellan 500 och 700 °C. M1 • · • · • · · • · · • • « « « · f • · · « IM· Ml • · · • » 1 • · « · • M I · » · 2 • ♦Process according to claim 7, characterized in that ϊ: annealing treatment takes place at a temperature between 500 and 700 ° C. M1 • · • • • • • • • • • • «« «· f • · ·« IM · Ml • · · • »1 • ·« · • M I · »· 2 • ♦
FI923019A 1991-07-04 1992-06-29 Sewage valve for a stroke piston combustion engine that operates according to the diesel principle and valve manufacturing process FI105945B (en)

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CN1033870C (en) 1997-01-22
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FI923019A (en) 1993-01-05
DK0521821T3 (en) 1996-08-26
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JPH05222475A (en) 1993-08-31
CN1068394A (en) 1993-01-27
JP3372568B2 (en) 2003-02-04
KR930002646A (en) 1993-02-23
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EP0521821A2 (en) 1993-01-07
EP0521821B1 (en) 1996-07-31

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