CN106282783A - The inlet and exhaust valve seat ring of electromotor and inlet and exhaust valve combination - Google Patents
The inlet and exhaust valve seat ring of electromotor and inlet and exhaust valve combination Download PDFInfo
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- CN106282783A CN106282783A CN201610902148.3A CN201610902148A CN106282783A CN 106282783 A CN106282783 A CN 106282783A CN 201610902148 A CN201610902148 A CN 201610902148A CN 106282783 A CN106282783 A CN 106282783A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- 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
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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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
- 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
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- Valve-Gear Or Valve Arrangements (AREA)
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Abstract
The present invention relates to inlet and exhaust valve seat ring and the inlet and exhaust valve combination of a kind of electromotor, inlet valve seat ring and the inlet valve being matched therewith including electromotor, and exhaust valve seat insert and the exhaust valve that is matched therewith, the inlet and exhaust valve seat ring of the powder metallurgy containing Ni Co Mo Cr material, and selection is mainly composed of Cr Si Mn P or the inlet valve of Cr Mn Ni N, it is mainly composed of Cr Mn Ni Nb W or the exhaust valve of dish portion built-up welding Cr W Ni Fe Mo, by reducing the wear extent between inlet valve seat ring and inlet valve, wear extent between exhaust valve seat insert and exhaust valve, to reach to solve the problem that natural gas engine mechanical tappets valve clearance is abnormal.The present invention and improve inlet valve seat ring and the wearability of exhaust valve seat insert, thermostability and radial crushing strength, solve quality problems such as causing valve clearance abnormal because of the inordinate wear between inlet valve seat ring and inlet valve, exhaust valve seat insert and exhaust valve, deformation.
Description
Technical field
The invention belongs to technical field of automobile engine, the inlet valve seat ring of a kind of high speed natural gas engine and
The coupling combination of coupling combination, exhaust valve seat insert and the exhaust valve of inlet valve.
Background technology
It is dirty with increasingly severe aerofluxus that the development of automobile and prime mover industry result in increasing considerably of consumption of petroleum
Dye, thus restrict economic development, endanger environmental and human health impacts.Theory and practice shows owing to natural gas octane number is high, antiknock
Performance is good；Molecule C/Hratio is low, CO after burning2Discharge low；Combustion characteristics is good, and therefore engine for combusting natural gas can save stone
Fluid fluid fuel, reduces the noxious emission in its tail gas and carbon dioxide, reduces city PM2.5, reduces greenhouse gas emission,
Be conducive to the fundamental policy of energy-conserving and environment-protective.
But, when electromotor uses gas fuel or the gaseous fuel with methane as main component, gas inlet outlet valve base
Circle and inlet and exhaust valve serious wear, cause mechanical tappets valve clearance abnormal, it is impossible to meet the design requirement of electromotor.Table simultaneously
The wearability of bright inlet and exhaust valve seat ring is difficult to compared with gasoline engine, it is therefore necessary to improve the wearability of inlet and exhaust valve seat ring and heat-resisting
Property, and guarantee that the inlet and exhaust valve being matched therewith is not result in inordinate wear.
Summary of the invention
The technical problem to be solved is, it is provided that the inlet and exhaust valve seat ring of a kind of electromotor and inlet and exhaust valve group
Close, to improve wearability and the self lubricity of inlet and exhaust valve seat ring, it is ensured that inlet and exhaust valve seat ring does not occur inordinate wear, it is ensured that enter
Exhaust valve seat insert will not produce obvious aggressivity to inlet and exhaust valve, guarantees that mechanical tappets valve clearance remains at mark with this
In the range of standard.
The present invention is achieved in that inlet and exhaust valve seat ring and the inlet and exhaust valve combination providing a kind of electromotor, including sending out
The inlet valve seat ring of motivation and the inlet valve being matched therewith, and exhaust valve seat insert and the exhaust valve that is matched therewith, described
Inlet valve seat ring and exhaust valve seat insert include main working region and task region, described main working region and task district respectively
Territory both ends of the surface use sintering process to fit tightly and are connected as an entirety, can obtain powerful alloy and equally distributed hard phase,
Thus improve inlet valve seat ring and the wearability of exhaust valve seat insert, thermostability and radial crushing strength, solve because of inlet valve
Inordinate wear, deformation between seat ring and inlet valve, exhaust valve seat insert and exhaust valve and the quality problems such as cause valve clearance abnormal.
Main working region and the internal diameter in task region and external diameter are equal.Inlet valve seat ring and exhaust valve seat insert use powder
Metallurgical technology manufactures.Inlet valve seat ring is fitted in cylinder head air intake duct, and exhaust valve seat insert is fitted in cylinder head exhaust duct, enters
Valve contacts with inlet valve seat ring, and exhaust valve contacts with exhaust valve seat insert, and forms combustor with cylinder head, a sealing,
Heat transfer, high temperature resistance high pressure, the effect such as wear-resistant.Owing to the working environment of combustor is very severe, therefore inlet valve seat ring, aerofluxus
Seat ring, inlet valve, exhaust valve are in the adverse circumstances such as high temperature, high pressure, high oxidation.The main working region of exhaust valve seat insert
The most severe relative to the working environment of the main working region of inlet valve seat ring and inlet valve with the working environment of exhaust valve.Use
The present invention can increase the wearability of product, heat-resisting quantity, corrosion resistance and radial crushing strength.
The main chemical compositions (percentage by weight) of the main working region of described inlet valve seat ring is: C 0.9%～1.0%,
Si 0.58%～0.62%, S 0.70%～0.75%, Ni 5.0%～7.0%, Cr 3.0%～5.0%, Mo 6.5%～8.5%, Co
17.0%～21.0%, other impurity≤2.0%, surplus are Fe；
Described inlet valve main chemical compositions (percentage by weight) is: C 0.45%～0.55%, S≤0.030%, Cr 7.50%～
9.50%, Si 1.00%～2.00%, Mn≤0.60%, P≤0.030%, surplus are Fe；Or described inlet valve main chemical compositions
(percentage by weight) is: C 0.48%～0.58%, S≤0.030%, Cr 20.00%～22.00%, Si≤0.35%, Mn 8.00%
～10.00%, P≤0.040%, Ni 3.25%～4.50%, N 0.35%～0.50%, surplus be Fe, wherein C plus N content >=
0.90%；
The main chemical compositions (percentage by weight) of the main working region of described exhaust valve seat insert is: C 0.98%～1.2%, Si
0.97%～1.03%, S 0.74%～0.76%, Ni 5.0%～7.0%, Cr 4.0%～6.0%, Mo 10.0%～13.0%, Co
22.0%～26.0%, other impurity≤2.0%, surplus are Fe；
Described exhaust valve main chemical compositions (percentage by weight) is: C 0.45%～0.55%, P≤0.050%, S≤0.030%,
Si≤0.45%, Cr 20.00%～22.00%, Mn 8.00%～10.00%, Ni 3.50%～5.00%, Nb 1.80%～
2.50%, W 0.80%～1.50%, surplus is Fe, and wherein C is plus content >=0.90% of N；Or the dish portion table of described exhaust valve
Surface build-up welding, the material of built-up welding is: C 0.9%～1.4%, Si 0.7%～1.55%, Mn≤0.5%, Cr 28.0%～30.0%, W
3.5%～5.5%, Ni≤3.0%, Fe≤3.0%, Mo≤1.0%, surplus are Co.
The present invention, on the basis of not changing the structure of inlet valve seat ring and exhaust valve seat insert, increases inlet valve seat ring respectively
With the percentage by weight of main working region alloy material Ni, Co, Cr, Mo of exhaust valve seat insert, and Ni in exhaust valve seat insert, Co,
The percentage by weight of Cr, Mo improves a lot, thus realizes exhaust valve seat insert and have higher wearability than inlet valve seat ring.Aerofluxus
The material rate of door is higher than inlet valve, so that exhaust valve and the coupling of the coupling of exhaust valve seat insert, inlet valve and inlet valve seat ring
Can reach optimum.
Further, the chemical composition (percentage by weight) in the task region of described inlet valve seat ring is: C 1.0%, S
0.2%, other impurity≤2.0%, surplus are Fe；The chemical composition (percentage by weight) in the task region of described exhaust valve seat insert
For: C 1.0%, S 0.2%, other impurity≤2.0%, surplus are Fe.
Further, the chemical composition (percentage by weight) of the main working region of described inlet valve seat ring is: C 0.9%, Si
0.6%, S 0.75%, Ni 5.5%, Cr 3.5%, Mo 6.5%, Co 17.5%, other impurity≤2.0%, surplus are Fe；Described enter
The chemical composition (percentage by weight) of valve is: C 0.45%, S 0.020%, Cr 7.50%, Si 1.00%, Mn 0.50%, P
0.030%, surplus is Fe.
Further, the chemical composition (percentage by weight) of the main working region of described inlet valve seat ring is: C 1.0%, Si
0.6%, S 0.75%, Ni 6.0%, Cr 4.0%, Mo 7.5%, Co 19.0%, other impurity≤2.0%, surplus are Fe；Described enter
The chemical composition (percentage by weight) of valve is: C 0.48%, Si 0.30%, S 0.030%, Cr 20.00%, Mn 8.00%, P
0.040%, Ni 3.25%, N 0.50%, surplus are Fe.
Further, the chemical composition (percentage by weight) of the main working region of described inlet valve seat ring is: C 0.9%, Si
0.58%, S 0.70%, Ni 5.0%, Cr 3.0%, Mo 8.5%, Co 17.0%, other impurity≤2.0%, surplus are Fe；Described enter
The chemical composition (percentage by weight) of valve is: C 0.55%, S 0.030%, Cr 9.50%, Si 2.00%, Mn 0.60%, P
0.030%, surplus is Fe.
Further, the chemical composition (percentage by weight) of the main working region of described inlet valve seat ring is: C 1.0%, Si
0.62%, S 0.70%, Ni 7.0%, Cr 5.0%, Mo 8.0%, Co 21.0%, other impurity≤2.0%, surplus are Fe；Described enter
The chemical composition (percentage by weight) of valve is: C 0.58%, S 0.020%, Cr 22.00%, Si 0.35%, Mn 10.00%, P
0.030%, Ni 4.50%, N 0.35%, surplus are Fe.
Further, the chemical composition (percentage by weight) of the main working region of described exhaust valve seat insert is: C 1.0%, Si
1.0%, S 0.75%, Ni 6.0%, Cr 5.0%, Mo 11.5%, Co 24.0%, other impurity≤2.0%, surplus are Fe；Described row
The chemical composition (percentage by weight) of valve is: C 0.45%, P 0.050%, S 0.030%, Si 0.40%, Cr 22.00%, Mn
10.00%, Ni 5.00%, Nb 2.50%, W 1.50%, N 0.60%, surplus are Fe.
Further, the chemical composition (percentage by weight) of the main working region of described exhaust valve seat insert is: C 1.0%, Si
1.0%, S 0.75%, Ni 6.5%, Cr 5.0%, Mo 11.5%, Co 23.0%, other impurity≤2.0%, surplus are Fe；Described row
The chemical composition (percentage by weight) of the dish portion surface overlaying material of valve is: C 1.4%, Si 1.55%, Mn 0.4%, Cr
28.0%, W 3.5%, Ni 2.0%, Fe 2.0%, Mo 1.0%, surplus are Co.
Further, the chemical composition (percentage by weight) of the main working region of described exhaust valve seat insert is: C 0.98%,
Si 0.97%, S 0.74%, Ni 5.0%, Cr 4.0%, Mo 10.0%, Co 22.0%, other impurity≤2.0%, surplus are Fe；Institute
The chemical composition (percentage by weight) stating exhaust valve is: C 0.55%, P 0.040%, S 0.020%, Si 0.45%, Cr
20.00%, Mn 8.00%, Ni 3.50%, Nb 1.80%, W 0.80%, N 0.40%, surplus are Fe.
Further, the chemical composition (percentage by weight) of the main working region of described exhaust valve seat insert is: C 1.2%, Si
1.03%, S 0.76%, Ni 7.0%, Cr 6.0%, Mo 13.0%, Co 26.0%, other impurity≤2.0%, surplus are Fe；Described
The chemical composition (percentage by weight) of the dish portion surface overlaying material of exhaust valve is: C 0.9%, Si 0.7%, Mn 0.5%, Cr
30.0%, W 5.5%, Ni 3.0%, Fe 3.0%, Mo 0.9%, surplus are Co.
Compared with prior art, the present invention develops a kind of new combination of materials coupling, containing the powder of Ni-Co-Mo-Cr material
The inlet and exhaust valve seat ring that end is metallurgical, and select and be mainly composed of the inlet valve of Cr-Si-Mn-P or Cr-Mn-Ni-N, mainly become
Be divided into Cr-Mn-Ni-Nb-W or the exhaust valve of dish portion built-up welding Cr-W-Ni-Fe-Mo, by reduce inlet valve seat ring and inlet valve it
Between wear extent, exhaust valve seat insert and exhaust valve between wear extent, with reach solve natural gas engine mechanical tappets valve
The problem that gap is abnormal.
The inlet and exhaust valve seat ring of the electromotor of the present invention and inlet and exhaust valve combination advantage be: by increase Cr, Mo, Co,
The percentage by weight of Ni alloy powder, improves the wearability of inlet and exhaust valve seat ring, and mixes it, suppresses and secondary burning
Knot makes inlet and exhaust valve seat ring.Obtained the hard phase being evenly distributed by double sintering, thus improve inlet and exhaust valve seat ring
Wearability and thermostability, and ensure that matched inlet and exhaust valve has good wear resistence.
Accompanying drawing explanation
The structural representation that Fig. 1 is the inlet and exhaust valve seat ring of the present invention and inlet and exhaust valve is installed in cylinder head；
Fig. 2 is the inlet and exhaust valve seat ring in Fig. 1 and inlet and exhaust valve assembled state schematic diagram；
Fig. 3 is the cross-sectional schematic of the inlet and exhaust valve seat ring in Fig. 2.
Detailed description of the invention
In order to make the technical problem to be solved, technical scheme and beneficial effect clearer, below tie
Close drawings and Examples, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
In order to explain the present invention, it is not intended to limit the present invention.
Embodiment 1.
Refer to shown in Fig. 1 and Fig. 2, it is preferable real that the inlet and exhaust valve seat ring of inventive engine and inlet and exhaust valve combine
Execute example, including the inlet valve seat ring 1 of electromotor and the inlet valve 2 that is matched therewith, and exhaust valve seat insert 3 and being matched therewith
Exhaust valve 4.Described inlet valve seat ring 1 and exhaust valve seat insert 3 include main working region 11 and 31 and task region 12 respectively
With 32, described main working region 11 and 31 and task region 12 and 32 both ends of the surface fit tightly be connected as one overall, and main work
Make region 11 and the internal diameter in task region 12 and external diameter is equal, main working region 31 and the internal diameter in task region 32 and external diameter
Equal.
The main chemical compositions (percentage by weight) of the main working region 11 of described inlet valve seat ring 1 is: C 0.9%～
1.0%, Si 0.58%～0.62%, S 0.70%～0.75%, Ni 5.0%～7.0%, Cr 3.0%～5.0%, Mo 6.5%～
8.5%, Co 17.0%～21.0%, other impurity≤2.0%, surplus are Fe.
Described inlet valve 2 main chemical compositions (percentage by weight) is: C 0.45%～0.55%, S≤0.030%, Cr
7.50%～9.50%, Si 1.00%～2.00%, Mn≤0.60%, P≤0.030%, surplus are Fe；Or described inlet valve 2 is main
Chemical composition (percentage by weight) is: C 0.48%～0.58%, S≤0.030%, Cr 20.00%～22.00%, Si≤
0.35%, Mn 8.00%～10.00%, P≤0.040%, Ni 3.25%～4.50%, N 0.35%～0.50%, other impurity≤
2.0%, surplus is Fe, and wherein C is plus content >=0.90% of N.
The main chemical compositions (percentage by weight) of the main working region 31 of described exhaust valve seat insert 3 is: C 0.98%～
1.2%, Si 0.97%～1.03%, S 0.74%～0.76%, Ni 5.0%～7.0%, Cr 4.0%～6.0%, Mo 10.0%～
13.0%, Co 22.0%～26.0%, other impurity≤2.0%, surplus are Fe.
Described exhaust valve 4 main chemical compositions (percentage by weight) is: C 0.45%～0.55%, P≤0.050%, S≤
0.030%, Si≤0.45%, Cr 20.00%～22.00%, Mn 8.00%～10.00%, Ni 3.50%～5.00%, Nb 1.80%
～2.50%, W 0.80%～1.50%, surplus is Fe, and wherein C is plus content >=0.90% of N；Or the dish portion of described exhaust valve 4
Surface overlaying, the material of built-up welding is: C 0.9%～1.4%, Si 0.7%～1.55%, Mn≤0.5%, Cr 28.0%～30.0%, W
3.5%～5.5%, Ni≤3.0%, Fe≤3.0%, Mo≤1.0%, surplus are Co.The dish portion of described exhaust valve 4 is and exhaust valve seat
The contact surface of circle 3.
Embodiment 2.
On the basis of embodiment 1, the chemical composition (percentage by weight) in the task region 12 of described inlet valve seat ring 1
For: C 1.0%, S 0.2%, other impurity≤2.0%, surplus are Fe.The chemistry in the task region 32 of described exhaust valve seat insert 3
Composition (percentage by weight) is: C 1.0%, S 0.2%, other impurity≤2.0%, surplus are Fe.
Embodiment 3.
Specifically, the chemical composition (percentage by weight) of the main working region 11 of described inlet valve seat ring 1 is: C 0.9%,
Si 0.6%, S 0.75%, Ni 5.5%, Cr 3.5%, Mo 6.5%, Co 17.5%, other impurity≤2.0%, surplus are Fe.Described
The chemical composition (percentage by weight) of inlet valve 2 is: C 0.45%, S 0.020%, Cr 7.50%, Si 1.00%, Mn 0.50%, P
0.030%, surplus is Fe.
Embodiment 4.
Specifically, the chemical composition (percentage by weight) of the main working region 11 of described inlet valve seat ring 1 is: C 1.0%,
Si 0.6%, S 0.75%, Ni 6.0%, Cr 4.0%, Mo 7.5%, Co 19.0%, other impurity≤2.0%, surplus are Fe.Described
The chemical composition (percentage by weight) of inlet valve 2 is: C 0.48%, Si 0.30%, S 0.030%, Cr 20.00%, Mn 8.00%,
P 0.040%, Ni 3.25%, N 0.35%, surplus are Fe.
Embodiment 5.
Specifically, the chemical composition (percentage by weight) of the main working region 11 of described inlet valve seat ring 1 is: C 0.9%,
Si 0.58%, S 0.70%, Ni 5.0%, Cr 3.0%, Mo 8.5%, Co 17.0%, other impurity≤2.0%, surplus are Fe.Institute
The chemical composition (percentage by weight) stating inlet valve 2 is: C 0.55%, S 0.030%, Cr 9.50%, Si 2.00%, Mn
0.60%, P 0.030%, surplus are Fe.
Embodiment 6.
Specifically, the chemical composition (percentage by weight) of the main working region 11 of described inlet valve seat ring 1 is: C 1.0%,
Si 0.62%, S 0.70%, Ni 7.0%, Cr 5.0%, Mo 8.0%, Co 21.0%, other impurity≤2.0%, surplus are Fe.Institute
The chemical composition (percentage by weight) stating inlet valve 2 is: C 0.58%, S 0.020%, Cr 22.00%, Si 0.35%, Mn
10.00%, P 0.030%, Ni 4.50%, N 0.35%, surplus are Fe.
Embodiment 7.
Specifically, the chemical composition (percentage by weight) of the main working region 31 of described exhaust valve seat insert 3 is: C 1.0%,
Si 1.0%, S 0.75%, Ni 6.0%, Cr 5.0%, Mo 11.5%, Co 24.0%, other impurity≤2.0%, surplus are Fe.Institute
The chemical composition (percentage by weight) stating exhaust valve 4 is: C 0.45%, P 0.050%, S 0.030%, Si 0.40%, Cr
22.00%, Mn 10.00%, Ni 5.00%, Nb 2.50%, W 1.50%, N 0.60%, surplus are Fe.
Embodiment 8.
Specifically, the chemical composition (percentage by weight) of the main working region 31 of described exhaust valve seat insert 3 is: C 1.0%,
Si 1.0%, S 0.75%, Ni 6.5%, Cr 5.0%, Mo 11.5%, Co 23.0%, other impurity≤2.0%, surplus are Fe.Institute
The chemical composition (percentage by weight) of the dish portion surface overlaying material stating exhaust valve 4 is: C 1.4%, Si 1.55%, Mn 0.4%,
Cr 28.0%, W 3.5%, Ni 2.0%, Fe 2.0%, Mo 1.0%, surplus are Co.
Embodiment 9.
Specifically, the chemical composition (percentage by weight) of the main working region 31 of described exhaust valve seat insert 3 is: C 0.98%,
Si 0.97%, S 0.74%, Ni 5.0%, Cr 4.0%, Mo 10.0%, Co 22.0%, other impurity≤2.0%, surplus are Fe.Institute
The chemical composition (percentage by weight) stating exhaust valve 4 is: C 0.55%, P 0.040%, S 0.020%, Si 0.45%, Cr
20.00%, Mn 8.00%, Ni 3.50%, Nb 1.80%, W 0.80%, N 0.40%, surplus are Fe.
Embodiment 10.
Specifically, the chemical composition (percentage by weight) of the main working region 31 of described exhaust valve seat insert 3 is: C 1.2%,
Si 1.03%, S 0.76%, Ni 7.0%, Cr 6.0%, Mo 13.0%, Co 26.0%, other impurity≤2.0%, surplus are Fe.Institute
The chemical composition (percentage by weight) of the dish portion surface overlaying material stating exhaust valve 4 is: C 0.9%, Si 0.7%, Mn 0.5%,
Cr 30.0%, W 5.5%, Ni 3.0%, Fe 3.0%, Mo 0.9%, surplus are Co.
By each embodiment of the present invention according to natural gas engine long duration test specification, it is mounted on test-bed and carries out
Full load test at full speed in 400 hours.Result of the test shows, the product of above-mentioned every embodiment all disclosure satisfy that natural gas engine
To inlet valve seat ring and the performance requirement of inlet valve, exhaust valve seat insert and exhaust valve, and disclosure satisfy that mechanical tappets is to valve
The design requirement in gap.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (10)
1. the inlet and exhaust valve seat ring of an electromotor and inlet and exhaust valve combination, including electromotor inlet valve seat ring and with its phase
The inlet valve coordinated, and exhaust valve seat insert and the exhaust valve that is matched therewith, described inlet valve seat ring and exhaust valve seat insert divide
Do not include that main working region and task region, described main working region and task region both ends of the surface fit tightly and are connected as one
Overall, it is characterised in that the main chemical compositions (percentage by weight) of the main working region of described inlet valve seat ring is: C 0.9%
～1.0%, Si 0.58%～0.62%, S 0.70%～0.75%, Ni 5.0%～7.0%, Cr 3.0%～5.0%, Mo 6.5%～
8.5%, Co 17.0%～21.0%, other impurity≤2.0%, surplus are Fe；
Described inlet valve main chemical compositions (percentage by weight) is: C 0.45%～0.55%, S≤0.030%, Cr 7.50%～
9.50%, Si 1.00%～2.00%, Mn≤0.60%, P≤0.030%, surplus are Fe；Or described inlet valve main chemical compositions
(percentage by weight) is: C 0.48%～0.58%, S≤0.030%, Cr 20.00%～22.00%, Si≤0.35%, Mn 8.00%
～10.00%, P≤0.040%, Ni 3.25%～4.50%, N 0.35%～0.50%, surplus be Fe, wherein C plus N content >=
0.90%；
The main chemical compositions (percentage by weight) of the main working region of described exhaust valve seat insert is: C 0.98%～1.2%, Si
0.97%～1.03%, S 0.74%～0.76%, Ni 5.0%～7.0%, Cr 4.0%～6.0%, Mo 10.0%～13.0%, Co
22.0%～26.0%, other impurity≤2.0%, surplus are Fe；
Described exhaust valve main chemical compositions (percentage by weight) is: C 0.45%～0.55%, P≤0.050%, S≤0.030%,
Si≤0.45%, Cr 20.00%～22.00%, Mn 8.00%～10.00%, Ni 3.50%～5.00%, Nb 1.80%～2.50%,
W 0.80%～1.50%, N 0.40%～0.60%, surplus are Fe, and wherein C is plus content >=0.90% of N；Or described exhaust valve
The surface overlaying of dish portion, the material of built-up welding is: C 0.9%～1.4%, Si 0.7%～1.55%, Mn≤0.5%, Cr 28.0%～
30.0%, W 3.5%～5.5%, Ni≤3.0%, Fe≤3.0%, Mo≤1.0%, surplus are Co.
2. the inlet and exhaust valve seat ring of electromotor as claimed in claim 1 and inlet and exhaust valve combination, it is characterised in that described in enter
The chemical composition (percentage by weight) in the task region of valve retainer is: C 1.0%, S 0.2%, other impurity≤2.0%, remaining
Amount is Fe；The chemical composition (percentage by weight) in the task region of described exhaust valve seat insert is: C 1.0%, S 0.2%, other
Impurity≤2.0%, surplus are Fe.
3. inlet and exhaust valve seat ring and the inlet and exhaust valve of electromotor as claimed in claim 1 or 2 combines, it is characterised in that described
The chemical composition (percentage by weight) of the main working region of inlet valve seat ring is: C 0.9%, Si 0.6%, S 0.75%, Ni
5.5%, Cr 3.5%, Mo 6.5%, Co 17.5%, other impurity≤2.0%, surplus are Fe；Chemical composition (the weight of described inlet valve
Amount percentage ratio) be: C 0.45%, S 0.020%, Cr 7.50%, Si 1.00%, Mn 0.50%, P 0.030%, surplus are Fe.
4. inlet and exhaust valve seat ring and the inlet and exhaust valve of electromotor as claimed in claim 1 or 2 combines, it is characterised in that described
The chemical composition (percentage by weight) of the main working region of inlet valve seat ring is: C 1.0%, Si 0.6%, S 0.75%, Ni
6.0%, Cr 4.0%, Mo 7.5%, Co 19.0%, other impurity≤2.0%, surplus are Fe；Chemical composition (the weight of described inlet valve
Amount percentage ratio) be: C 0.48%, Si 0.30%, S 0.030%, Cr 20.00%, Mn 8.00%, P 0.040%, Ni 3.25%, N
0.50%, surplus is Fe.
5. inlet and exhaust valve seat ring and the inlet and exhaust valve of electromotor as claimed in claim 1 or 2 combines, it is characterised in that described
The chemical composition (percentage by weight) of the main working region of inlet valve seat ring is: C 0.9%, Si 0.58%, S 0.70%, Ni
5.0%, Cr 3.0%, Mo 8.5%, Co 17.0%, other impurity≤2.0%, surplus are Fe；Chemical composition (the weight of described inlet valve
Amount percentage ratio) be: C 0.55%, S 0.030%, Cr 9.50%, Si 2.00%, Mn 0.60%, P 0.030%, surplus are Fe.
6. inlet and exhaust valve seat ring and the inlet and exhaust valve of electromotor as claimed in claim 1 or 2 combines, it is characterised in that described
The chemical composition (percentage by weight) of the main working region of inlet valve seat ring is: C 1.0%, Si 0.62%, S 0.70%, Ni
7.0%, Cr 5.0%, Mo 8.0%, Co 21.0%, other impurity≤2.0%, surplus are Fe；Chemical composition (the weight of described inlet valve
Amount percentage ratio) be: C 0.58%, S 0.020%, Cr 22.00%, Si 0.35%, Mn 10.00%, P 0.030%, Ni 4.50%, N
0. 35%, surplus is Fe.
7. inlet and exhaust valve seat ring and the inlet and exhaust valve of electromotor as claimed in claim 1 or 2 combines, it is characterised in that described
The chemical composition (percentage by weight) of the main working region of exhaust valve seat insert is: C 1.0%, Si 1.0%, S 0.75%, Ni
6.0%, Cr 5.0%, Mo 11.5%, Co 24.0%, other impurity≤2.0%, surplus are Fe；The chemical composition of described exhaust valve
(percentage by weight) is: C 0.45%, P 0.050%, S 0.030%, Si 0.40%, Cr 22.00%, Mn 10.00%, Ni
5.00%, Nb 2.50%, W 1.50%, N 0.60%, surplus are Fe.
8. inlet and exhaust valve seat ring and the inlet and exhaust valve of electromotor as claimed in claim 1 or 2 combines, it is characterised in that described
The chemical composition (percentage by weight) of the main working region of exhaust valve seat insert is: C 1.0%, Si 1.0%, S 0.75%, Ni
6.5%, Cr 5.0%, Mo 11.5%, Co 23.0%, other impurity≤2.0%, surplus are Fe；The dish portion surface heap of described exhaust valve
The chemical composition (percentage by weight) of wlding material is: C 1.4%, Si 1.55%, Mn 0.4%, Cr 28.0%, W 3.5%, Ni
2.0%, Fe 2.0%, Mo 1.0%, surplus are Co.
9. inlet and exhaust valve seat ring and the inlet and exhaust valve of electromotor as claimed in claim 1 or 2 combines, it is characterised in that described
The chemical composition (percentage by weight) of the main working region of exhaust valve seat insert is: C 0.98%, Si 0.97%, S 0.74%, Ni
5.0%, Cr 4.0%, Mo 10.0%, Co 22.0%, other impurity≤2.0%, surplus are Fe；The chemical composition of described exhaust valve
(percentage by weight) is: C 0.55%, P 0.040%, S 0.020%, Si 0.45%, Cr 20.00%, Mn 8.00%, Ni
3.50%, Nb 1.80%, W 0.80%, N 0.40%, surplus are Fe.
10. inlet and exhaust valve seat ring and the inlet and exhaust valve of electromotor as claimed in claim 1 or 2 combines, it is characterised in that institute
The chemical composition (percentage by weight) of the main working region stating exhaust valve seat insert is: C 1.2%, Si 1.03%, S 0.76%, Ni
7.0%, Cr 6.0%, Mo 13.0%, Co 26.0%, other impurity≤2.0%, surplus are Fe；The dish portion surface heap of described exhaust valve
The chemical composition (percentage by weight) of wlding material is: C 0.9%, Si 0.7%, Mn 0.5%, Cr 30.0%, W 5.5%, Ni
3.0%, Fe 3.0%, Mo 0.9%, surplus are Co.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610902148.3A CN106282783B (en) | 2016-10-18 | 2016-10-18 | Inlet and exhaust valve seat ring and the inlet and exhaust valve combination of engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610902148.3A CN106282783B (en) | 2016-10-18 | 2016-10-18 | Inlet and exhaust valve seat ring and the inlet and exhaust valve combination of engine |
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| CN106282783B CN106282783B (en) | 2018-05-15 |
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| CN201610902148.3A Active CN106282783B (en) | 2016-10-18 | 2016-10-18 | Inlet and exhaust valve seat ring and the inlet and exhaust valve combination of engine |
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| CN (1) | CN106282783B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780991A (en) * | 2017-10-25 | 2018-03-09 | 江苏金山动力科技有限公司 | A kind of internal combustion engine air outlet valve and its preparation technology |
| CN108868941A (en) * | 2018-06-27 | 2018-11-23 | 浙江吉利控股集团有限公司 | Alcohol engine valve retainer and its manufacturing method, alcohol engine, automobile |
| CN110616382A (en) * | 2019-10-28 | 2019-12-27 | 山东华盛中天机械集团股份有限公司 | Engine valve seat ring material for gas |
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| CN110616382A (en) * | 2019-10-28 | 2019-12-27 | 山东华盛中天机械集团股份有限公司 | Engine valve seat ring material for gas |
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Inventor after: Han Zhiyu Inventor after: Shi Yongsheng Inventor after: Liu Wei Inventor before: Han Zhiyu Inventor before: Ouyang Jinmei Inventor before: Shi Yongsheng Inventor before: Liu Wei |
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Address after: 223005 Huaian city of Jiangsu Province, Hon Hai Road No. 12 Patentee after: Jiangsu shanghuai Power Co., Ltd Address before: 223005 Huaian city of Jiangsu Province, Hon Hai Road No. 12 Patentee before: JIANGSU SMAPOW POWER Co.,Ltd. |