CN100436625C - Materia for nozzle head and nozzle head made from same - Google Patents
Materia for nozzle head and nozzle head made from same Download PDFInfo
- Publication number
- CN100436625C CN100436625C CNB031105688A CN03110568A CN100436625C CN 100436625 C CN100436625 C CN 100436625C CN B031105688 A CNB031105688 A CN B031105688A CN 03110568 A CN03110568 A CN 03110568A CN 100436625 C CN100436625 C CN 100436625C
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- China
- Prior art keywords
- injector head
- content
- active element
- material according
- nozzle burner
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 claims abstract description 44
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011651 chromium Substances 0.000 claims abstract description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- 239000000295 fuel oil Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001513 hot isostatic pressing Methods 0.000 claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 229910052735 hafnium Inorganic materials 0.000 claims description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical group [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002848 electrochemical method Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052706 scandium Inorganic materials 0.000 claims description 3
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 8
- 239000000956 alloy Substances 0.000 abstract description 8
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 229910001347 Stellite Inorganic materials 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 229910000423 chromium oxide Inorganic materials 0.000 description 2
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/166—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F2007/0097—Casings, e.g. crankcases or frames for large diesel engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
- Powder Metallurgy (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
Material for the nozzle head (2) of a fuel injection nozzle (1) of an internal combustion engine, especially a large diesel engine, comprises a chromium-based alloy containing (in wt.%) 0-50 nickel, 0-5 carbon, 0-5 silicon and at least 50 chromium. Further, the invention also included for a nozzle head (2) manufactured by this material.
Description
Technical field
The present invention relates to a kind of material that is used for the injector head of nozzle burner, the nozzle burner of large-scale diesel engine of injector head made from this material and oil engine-particularly.
Background technology
At the drive unit of for example boats and ships or fixedly produce in the factory in the large-scale diesel engine of device of power, the fuel oil that utilizes nozzle burner will be generally heavy oil or other diesel oil is sent into the combustion chamber.This kind nozzle usually comprises that a part stretches into the injector head in the combustion chamber.This kind injector head also claims spraying gun.Because this injector head is in the very high state of heat load, mechanical load and chemical load, so be consumable accessory.According to stress in various degree, damage may occur on the injector head, and for example material loses owing to burn into erosion and/or wearing and tearing, perhaps even cause the slit of splitting.
Mechanical strain is also from the high injection pressure that may surpass 1000 crust.The loss of material may occur in injector head inside owing to cavitation erosion and/or erosion.The reason that produces thermal strain is high temperature and temperature of combustion and the fresh greatest differences that washes away between the air themperature in the combustion chamber.Intermittent type ground sprays and also to cause the inner temperature variation that produces impact type of injector head of flowing through at fuel oil.The chemical strain of injector head is mainly due to high temperature corrosion or thermal etching.The thermal etching that main vanadium, sodium and the sulphur that is included by fuel oil causes promotes material attenuation and erosion.The corrosion become the injector head potentially unstable especially and only worked thousands of hours after must the replacing reason.
Today, the injector head in the large-scale diesel engine is with steel or nickel-base alloy or cobalt base alloy-for example stellite 6-makes.In large-scale diesel engine, use cobalt base alloy stellite 6 aspect tackling erosion, wearing and tearing and (particularly nozzle bore in) cavitation erosion, enough working lives to be arranged at present, but aspect its material unaccounted-for (MUF) that causes or increase, still have improved necessity at heat and corrosion resistant and prevention.The face the future expectation of development even bigger large-scale diesel engine, special stress aspect injector head requires will continue to improve.
EP-A-0529208 proposes a kind of croloy.This alloy is nickeliferous 30～48%, also contains 1.5～15% tungsten and/or 1～6.5% molybdenum, and wherein the total content of tungsten and molybdenum is no more than 15%.(surface hardening) puts forward this alloy as coating material, is specially adapted to the coating of motor car engine valve.The content of tungsten and/or molybdenum is why important to be because it makes coating material have the intensity and the hardness of requirement.
Summary of the invention
The objective of the invention is to propose a kind of material and a kind of with its injector head of making, they can adapt to the heat load state in the large-scale diesel engine preferably, and particularly they have higher heat/corrosion resistance.
According to the present invention, therefore a kind of material of injector head of the nozzle burner that is used for oil engine is proposed, it is characterized in that, this material is a croloy, except that common impurity, by weight percentage, by at least 45% nickel (Ni), 50～55% chromium (Cr), greater than 0 to and comprise that 5% carbon (C), 0～5% silicon (Si) and at least a active element form, this active element is selected from the group of being made up of hafnium (Hf) and rare earth element, and wherein, the content of every kind of described active element mostly is 5% most.
Of the present inventionly be used for that oil engine-particularly the injector head of the nozzle burner of large-scale diesel engine is just made with this kind material.
Croloy of the present invention proves that its erosion resistance is good especially, especially heat and corrosion resistant, erosion, wearing and tearing, material unaccounted-for (MUF) and cavitation erosion.Under the high load condition of large-scale diesel engine, work very good with the injector head that this kind croloy is made.Its physical strength, the anti-ability that forms crackle with and long-term anti-pulsation adaptability to changes also can meet the demands.Show: in large-scale diesel engine, injector head of the present invention 8000～15000 working hourss of can working.
It needs to be noted: the chromium content height of material of the present invention is to resisting the violent erosion particularly important that high temperature corrosion causes, and this kind high temperature corrosion usually takes place in the combustion chamber with the large-scale diesel engine of heavy oil work.Chromium forms one deck on the injector head surface fine and close and the chromium oxide layer that tightly adheres to makes material have chemical resistant properties.Because the content height of chromium, chromium can be diffused into the surface of injector head from injector head inside rapidly, thereby handles the wound that zone of oxidation takes place at this place.
This material preferably comprises at least a active element, and this active element is selected from lanthanum (La), cerium (Ce), yttrium (Y), hafnium (Hf), scandium (Sc) and rare earth element.The content of every kind of active element mostly is 5% most.
The effect of active element is the adhesive ability of inner stable and this layer of positive influence chromium oxide layer to injector head itself in the material.Even the content of this kind active element is few, also improve its tack of the oxidation susceptibility of oxide skin-particularly significantly, also improve the strain of temperature variation especially.
As for mechanical technology, nickel content preferably reaches 45% at least.Because final chromium content is lower, the fragility of this material is less, thereby is easy to handle or processing.
In a special preferential embodiment, except common impurity, material of the present invention by weight nickeliferous (Ni) is at least 45%, chromium (Cr) 50～55%, carbon (C) 0～5%, silicon (Si) 0～5% and one or more active elements 0～5%.Have been found that: the injector head made from the composition of this kind alloy bears the high-load state in superior mode in large-scale diesel engine, especially the heat/corrosion resistance height.
In material of the present invention, need not add the composition that increases hardness or intensity, for example tungsten or molybdenum.
It is quite beneficial that the high-content that facts have proved every kind of active element reaches the especially the highest 0.2%-of 1%-.The high-content of carbon (C) is preferably 1%, and is especially the highest by 0.05%; The high-content of silicon (Si) is preferably 1%, and is especially the highest by 0.5%.
Usually there is a kind of active element just much of that in the material of the present invention.But, according to different purposes, may be also favourable with various active element manufactured materials.
Generally, its chemical constitution not only arranged, also have its working method what the performance of alloy of material-particularly played a decisive role.If it is favourable having proved material of the present invention or having made with the hot isostatic pressing method with its injector head of making.
The most handy corresponding metal powder of this material is made, and the main body granularity of powder is especially 40～150 μ m of 10～200 μ m-.This means that the granularity of powder main part is 10～200, especially 40～150 μ m.
In a preferential embodiment, injector head has a vertical hole, and has a jet hole that begins from vertical hole at least, in order to fuel oil is sent into the combustion chamber.Transition position from vertical hole to jet hole should rounding, preferably uses electrochemical method (electrolysis (elysed)) to carry out rounding.The zone of transition rounding is on the fuel oil stream sharp edge to be arranged, thereby makes flow condition reach optimization.
Injector head of the present invention is specially adapted to the nozzle burner of diesel engine of oil engine-especially.Injector head of the present invention or be specially adapted to large-scale diesel engine, for example the uniflow scavenging large-scale diesel engine or the four-stroke large-scale diesel engine that drive of the pinblock of two strokes with nozzle burner that it provides simultaneously.
Favourable measure that the present invention is other and embodiment are from appended claims.
Description of drawings
Explain the present invention in more detail by following explanation and accompanying drawing to embodiment.A width of cloth figure unique in the schematic figures shows:
Fig. 1 is the nozzle burner sectional view that comprises the embodiment of injector head of the present invention.
Embodiment
Fig. 1 is a nozzle burner cross section in the two stroke uniflow scavenging large-scale diesel engines of a large-scale diesel engine-particularly.Whole nozzle is represented with numeral 1.This nozzle burner 1 comprises an embodiment of the invention injector head 2 that is fixed on the nozzle body 3.This injector head 2 preferably detachably is connected with nozzle body 3 as shown in the figure, need not change whole nozzle burner 1 so that can change injector head separately.
Injector head 2 has 5 jet holes 21 in a vertical hole 20 and a plurality of-for example.Only illustrate wherein 2 among Fig. 1.Each jet hole 21 all from vertical hole 20, radially stretches in slight downward-sloping mode from this then.
During work, the fuel oil that is generally heavy oil or other diesel oil cooperates by the work period of known mode own and large-scale diesel engine off and on, under high pressure sprays into combustion chamber (not being shown specifically) by vertical hole 20 and jet hole 21.
According to this embodiment, the material that injector head 2 comprises is the croloy that contains a kind of active element.Rare earth or similar metal all are suitable for as this kind active element, particularly lanthanum (La), cerium (Ce), yttrium (Y), hafnium (Hf), (Sc) is more suitable for scandium.The part of the nickel of this material is by weight better up to 45～50%, so that guarantee preferable processing characteristics.
In present embodiment, the nickel content of alloy is higher than 45%, and as active element, its weight ratio is less than 0.1% with lanthanum.Except that common impurity, all the other are chromium.
This material certainly contains more than one active element, and the content of every kind of active element is preferably by weight that to be up to 1%-especially the highest by 0.2%.
Injector head 2 the most handy hot isostatic pressing (HIP) manufactured of the present invention.
During manufacturing, starting material-herein are chromium, nickel and active element lanthanum-be atomized into powder by itself known mode.The main body granularity of powder is 45～150 μ m in the present embodiment.Utilize hot isostatic pressing method that powder is made the blank or the intermediates of bar for example then.Machining process by cutting working method commonly used etc. is made this injector head 2 with blank.Vertically hole 20 and 21 of jet holes are drilled to.Zone of transition (edge) between vertical hole 20 and the jet hole 21 is rounding preferably, and electrochemical method rounding (electrolysis) is preferably used at these edges.
The processing parameter of hot isostatic pressing can be according to associated uses optimization.
The material of the present invention or good power of resisting is arranged with the 2 pairs of thermal etchings of its injector head of making and the material unaccounted-for (MUF) of accompanying.Also might satisfy other requirements of heat, machinery and chemical load state well.Use this kind injector head 2 can reach 8000～15000 hours working life.Even after working so for a long time, the state of this injector head is still good.So especially from economic angle, Chang working life really is a big advantage like this.
Therefore, injector head of the present invention is fit to the needs of following several generations large-scale diesel engine development.The performance of this kind diesel engine is better, thereby requires also higher to the stress level of injector head.
Claims (15)
1. the material of the injector head (2) of a nozzle burner (1) that is used for oil engine, it is characterized in that, this material is a croloy, except that common impurity, by weight percentage, by at least 45% nickel (Ni), 50～55% chromium (Cr), greater than 0 to and comprise that 5% carbon (C), 0～5% silicon (Si) and at least a active element form, this active element is selected from the group of being made up of hafnium (Hf) and rare earth element, wherein, the content of every kind of described active element mostly is 5% most.
2. material according to claim 1 is characterized in that the content of every kind of active element is up to 1%; The content of carbon (C) is up to 1%; And the content of silicon (Si) is up to 1%.
3. material according to claim 1 and 2 is characterized in that, it is by the hot isostatic pressing manufactured.
4. material according to claim 1 and 2 is characterized in that, it utilizes the manufacturing of corresponding metal powder, and the main body granularity of this metal-powder is 10～200 μ m.
5. material according to claim 1 is characterized in that, rare earth element is selected from lanthanum (La), cerium (Ce), yttrium (Y), scandium (Sc).
6. material according to claim 2 is characterized in that the content of every kind of active element is up to 0.2%.
7. material according to claim 2 is characterized in that, the content of carbon (C) is up to 0.05%.
8. material according to claim 2 is characterized in that, the content of silicon (Si) is up to 0.5%.
9. material according to claim 4 is characterized in that, the main body granularity of this metal-powder is 40～150 μ m.
10. one kind with what make according to any one described material in the claim 1～9, is used for the injector head of the nozzle burner of oil engine.
11. injector head according to claim 10, it is characterized in that, it has a vertical hole (20) and jet hole (21) that at least one begins from this vertical hole, and is so that fuel oil is introduced the combustion chamber, wherein rounded to the transition portion of jet hole (21) from vertical hole (20).
12. injector head according to claim 11 is characterized in that, the transition portion electrochemical method rounding from vertical hole (20) to jet hole (21).
13. nozzle burner that is used for oil engine that has according to claim 10 or 11 described injector heads.
14. an oil engine, it has nozzle burner according to claim 13.
15. a large-scale diesel engine, it has nozzle burner according to claim 13.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02405289.6 | 2002-04-11 | ||
| EP02405289 | 2002-04-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1450186A CN1450186A (en) | 2003-10-22 |
| CN100436625C true CN100436625C (en) | 2008-11-26 |
Family
ID=28686034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031105688A Expired - Fee Related CN100436625C (en) | 2002-04-11 | 2003-04-10 | Materia for nozzle head and nozzle head made from same |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1353061B1 (en) |
| JP (1) | JP4870323B2 (en) |
| KR (1) | KR100959597B1 (en) |
| CN (1) | CN100436625C (en) |
| AT (1) | ATE388322T1 (en) |
| DE (1) | DE50309291D1 (en) |
| DK (1) | DK1353061T3 (en) |
| PL (1) | PL199117B1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL1566539T3 (en) * | 2004-02-23 | 2009-05-29 | Waertsilae Nsd Schweiz Ag | Fuel injector |
| EP2000550A1 (en) | 2007-06-08 | 2008-12-10 | Wärtsilä Schweiz AG | Material based on a CrNi alloy, semi-finished product, components for a combustion engine and method for manufacturing the material and the semi-finished product |
| KR20100101516A (en) | 2009-03-09 | 2010-09-17 | 베르트질레 슈바이츠 악티엔게젤샤프트 | Method for the application of a coating onto a seating surface of a workpiece, as well as a workpiece with a coated seating surface |
| CN101694199B (en) * | 2009-08-20 | 2011-05-11 | 余姚市舒春机械有限公司 | Nozzle of low-speed diesel engine |
| DE102009046437B4 (en) * | 2009-11-05 | 2018-04-19 | Man Diesel & Turbo Se | Method for processing an injection nozzle |
| AT511880B1 (en) * | 2011-09-06 | 2013-12-15 | Bosch Gmbh Robert | WEAR-OPTIMIZED MANUFACTURE OF TAPPY SPRAY HOLES |
| CN115324799B (en) * | 2022-06-29 | 2023-06-06 | 中汽研汽车检验中心（天津）有限公司 | Method and device for representing carbon deposition of gasoline engine nozzle |
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| JPS6311644A (en) * | 1986-07-01 | 1988-01-19 | Mitsubishi Metal Corp | High-strength ni-cr alloy excellent in corrosion resistance and heat resistance |
| CN1073931A (en) * | 1991-12-03 | 1993-07-07 | 先进复合材料公司 | Pressureless sintering of whisker enhanced alumina composite material |
| US5425822A (en) * | 1991-08-27 | 1995-06-20 | Fukuda Metal Foil & Powder Co., Ltd. | Hard facing chromium-base alloys |
| CN1133394A (en) * | 1994-07-15 | 1996-10-16 | 新苏舍柴油机有限公司 | Jet nozzle and fuel jetting method to internal combustion engine |
| JPH11285890A (en) * | 1998-04-02 | 1999-10-19 | Kubota Corp | High c/high cr-ni based welding rod |
| JPH11293376A (en) * | 1998-04-14 | 1999-10-26 | Sumitomo Metal Mining Co Ltd | Chromium-base alloy for hearth member of heating furnace |
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| JPS6331301A (en) | 1986-07-25 | 1988-02-10 | Sharp Corp | Band-pass filter |
| JPH0639095Y2 (en) * | 1988-03-09 | 1994-10-12 | 住友重機械工業株式会社 | Fuel injection nozzle for diesel engine |
| EP0452079A1 (en) * | 1990-04-12 | 1991-10-16 | Tosoh Corporation | High chromium-nickel material and process for producing the same |
| JPH04358054A (en) * | 1991-06-03 | 1992-12-11 | Kobe Steel Ltd | Powdery material for thermal spraying and surface-coated parts having excellent erosion resistance |
| JPH05222481A (en) * | 1992-02-07 | 1993-08-31 | Tosoh Corp | New high chromium-nickel mechanical alloy and its production |
| DK0569655T3 (en) * | 1992-05-11 | 1996-02-19 | New Sulzer Diesel Ag | Nozzle head for a fuel injection device |
| WO1995024286A1 (en) * | 1994-03-10 | 1995-09-14 | Man B & W Diesel A/S | A method of manufacturing a nozzle for a fuel valve, and a nozzle |
| DE59907093D1 (en) * | 1998-08-27 | 2003-10-30 | Waertsilae Nsd Schweiz Ag | Method of manufacturing a fuel injector and fuel injector |
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2003
- 2003-03-12 AT AT03405171T patent/ATE388322T1/en not_active IP Right Cessation
- 2003-03-12 DE DE50309291T patent/DE50309291D1/en not_active Expired - Lifetime
- 2003-03-12 EP EP03405171A patent/EP1353061B1/en not_active Expired - Lifetime
- 2003-03-12 DK DK03405171T patent/DK1353061T3/en active
- 2003-03-13 KR KR1020030015814A patent/KR100959597B1/en not_active IP Right Cessation
- 2003-04-09 PL PL359617A patent/PL199117B1/en not_active IP Right Cessation
- 2003-04-10 JP JP2003106188A patent/JP4870323B2/en not_active Expired - Fee Related
- 2003-04-10 CN CNB031105688A patent/CN100436625C/en not_active Expired - Fee Related
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| JPS6311644A (en) * | 1986-07-01 | 1988-01-19 | Mitsubishi Metal Corp | High-strength ni-cr alloy excellent in corrosion resistance and heat resistance |
| US5425822A (en) * | 1991-08-27 | 1995-06-20 | Fukuda Metal Foil & Powder Co., Ltd. | Hard facing chromium-base alloys |
| CN1073931A (en) * | 1991-12-03 | 1993-07-07 | 先进复合材料公司 | Pressureless sintering of whisker enhanced alumina composite material |
| CN1133394A (en) * | 1994-07-15 | 1996-10-16 | 新苏舍柴油机有限公司 | Jet nozzle and fuel jetting method to internal combustion engine |
| US6106643A (en) * | 1997-10-14 | 2000-08-22 | Inco Alloys International, Inc. | Hot working high-chromium alloy |
| JPH11285890A (en) * | 1998-04-02 | 1999-10-19 | Kubota Corp | High c/high cr-ni based welding rod |
| JPH11293376A (en) * | 1998-04-14 | 1999-10-26 | Sumitomo Metal Mining Co Ltd | Chromium-base alloy for hearth member of heating furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1353061B1 (en) | 2008-03-05 |
| CN1450186A (en) | 2003-10-22 |
| KR100959597B1 (en) | 2010-05-27 |
| KR20030081020A (en) | 2003-10-17 |
| JP4870323B2 (en) | 2012-02-08 |
| EP1353061A2 (en) | 2003-10-15 |
| DE50309291D1 (en) | 2008-04-17 |
| ATE388322T1 (en) | 2008-03-15 |
| EP1353061A3 (en) | 2006-05-31 |
| JP2003301233A (en) | 2003-10-24 |
| PL359617A1 (en) | 2003-10-20 |
| DK1353061T3 (en) | 2008-06-23 |
| PL199117B1 (en) | 2008-08-29 |
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