CN107245670A - A kind of Diesel engine valve guide bushing material - Google Patents

A kind of Diesel engine valve guide bushing material Download PDF

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Publication number
CN107245670A
CN107245670A CN201710360816.9A CN201710360816A CN107245670A CN 107245670 A CN107245670 A CN 107245670A CN 201710360816 A CN201710360816 A CN 201710360816A CN 107245670 A CN107245670 A CN 107245670A
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CN
China
Prior art keywords
diesel engine
valve guide
guide bushing
molybdenum
engine valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710360816.9A
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Chinese (zh)
Inventor
李贤斌
华建杰
张明辉
岳万祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Automobile Parts And Components (group) Co Ltd Dongfeng Powder Metallurgy Co
Original Assignee
Dongfeng Automobile Parts And Components (group) Co Ltd Dongfeng Powder Metallurgy Co
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Publication date
Application filed by Dongfeng Automobile Parts And Components (group) Co Ltd Dongfeng Powder Metallurgy Co filed Critical Dongfeng Automobile Parts And Components (group) Co Ltd Dongfeng Powder Metallurgy Co
Priority to CN201710360816.9A priority Critical patent/CN107245670A/en
Publication of CN107245670A publication Critical patent/CN107245670A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • B22F1/105—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing inorganic lubricating or binding agents, e.g. metal salts
    • 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
    • B22F3/02—Compacting only
    • 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
    • B22F3/10—Sintering only
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • 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
    • 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
    • B22F3/02—Compacting only
    • B22F2003/023—Lubricant mixed with the metal powder

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention discloses a kind of Diesel engine valve guide bushing material, it is made up of following components according to mass percent:Graphite 0.5 1.2%, copper 1.0 4.0%, molybdenum disulfide 0.2 3.0%, calcirm-fluoride 0.2 3.0%, manganese sulfide 0.2 1.0%, aluminium bronze 1 10%, surplus is molybdenum-iron powder.The Diesel engine valve guide bushing material that the present invention is provided, using valve guide bushing made from powder metallurgical technique, meet the working condition of diesel engine demand of the discharge standard of state V, with performances such as high temperature resistant, wear-resisting, self-lubricating, Cutting free processing, Diesel engine of the working temperature below 500 DEG C can be met and used.

Description

A kind of Diesel engine valve guide bushing material
Technical field
The present invention relates to technical field of automobile parts, more particularly to a kind of Diesel engine valve guide bushing material.
Background technology
The valve guide bushing that current national engine is used mainly uses casting alloy valve guide bushing, with national emission request Continuous improvement and environmental regulation constrain the increasing of dynamics, the trend of combustion medium diversification, the applying working condition day of valve guide bushing Become harsh, this requires accordingly to improve engine valve guide material.Valve guide bushing in the market, mainly with casting Make based on alloy, after being improved due to discharging standards, limitation of original casting alloy conduit because of its casting technique in itself （Grainiess is relatively thick, the easy segregation of composition, alloying limitation etc.）, the wear-resisting element such as phosphorus is added to by alloying limit value Limiting value still can not meet wearability requirement, occur wear and tear overrun value for a long time more than 5 times, never solved well Certainly.
The content of the invention
It is an object of the invention to provide a kind of Diesel engine valve guide bushing material, by the exploitation to material component, The Diesel engine valve guide bushing of preparation has the performances such as high temperature resistant, wear-resisting, self-lubricating, Cutting free processing, can meet state V The Diesel engine of discharge standard, working temperature below 500 DEG C is used.
To achieve the above object, the present invention relates to a kind of Diesel engine valve guide bushing material, by following components according to matter Measure percentage composition:Graphite 0.5-1.2%, copper 1.0-4.0%, molybdenum disulfide 0.2-3.0%, calcirm-fluoride 0.2-3.0%, manganese sulfide 0.2-1.0%, aluminium bronze 1-10%, surplus are molybdenum-iron powder.
It is preferred that, the present invention relates to a kind of Diesel engine valve guide bushing material, by following components according to mass percent Composition:Graphite 0.5%, copper 2.0%, molybdenum disulfide 0.8%, calcirm-fluoride 0.6%, manganese sulfide 0.3%, aluminium bronze 3.0%, surplus is molybdenum Iron powder.
It is preferred that, the present invention relates to a kind of Diesel engine valve guide bushing material, by following components according to mass percent Composition:Graphite 1.2%, copper 4.0%, molybdenum disulfide 2.0%, calcirm-fluoride 1.5%, manganese sulfide 0.8%, aluminium bronze 10%, surplus is molybdenum Iron powder.
It is preferred that, the present invention relates to a kind of Diesel engine valve guide bushing material, by following components according to mass percent Composition:Graphite 0.85%, copper 3.0%, molybdenum disulfide 1.5%, calcirm-fluoride 1.0%, manganese sulfide 0.5%, aluminium bronze 5%, surplus is molybdenum Iron powder.
The molybdenum-iron powder is the alloyed powder of the 0.2-2% containing molybdenum.
The aluminium bronze is nickeliferous 2~6.5%, aluminium 2~12%, iron 3~8.5%, other≤2%, surplus is copper.
Above-mentioned Diesel engine valve guide bushing is made by following steps：The powder uniformly mixed by above component is loaded Full-automatic dry powder press is suppressed, and pressed density is controlled in 6.95g/cm3More than, temperature control is at 1080 DEG C in sintering furnace Sintering 6 hours, then carries out vacuum oil immersion and post-processing processing is made.
Beneficial effect
The component proportion that the present invention is provided is according to working condition of diesel engine demand, by by molybdenum-iron powder, graphite powder, copper powder, two Molybdenum sulfide, calcirm-fluoride, manganese sulfide, aluminium bronze are proportionally matched, using Diesel engine valve made from powder metallurgical technique Conduit, with performances such as high temperature resistant, wear-resisting, self-lubricating, Cutting free processing, can meet the discharge standard of state V, working temperature and exist Less than 500 DEG C of Diesel engine is used.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention It is further elaborated.
Embodiment 1:
A kind of Diesel engine valve guide bushing material, it is composed of the following components according to mass percent meter:Graphite 0.5%, Copper 2.0%, molybdenum disulfide 0.8%, calcirm-fluoride 0.6%, manganese sulfide 0.3%, aluminium bronze 3.0%, surplus is the molybdenum-iron powder containing molybdenum 0.5%.
Matched more than, the Diesel engine valve guide bushing produced using powder metallurgical technique, using bainite as matrix, with Solid lubrication phase（Molybdenum disulfide, calcirm-fluoride）, copper alloy phase（Copper, aluminium bronze）It is mutually lubrication phase, is hard using fine acicular martensite Matter phase, manganese sulfide using addition is as helping cutting agent；In the range of 100-500 DEG C high temperature friction and wear experiment coefficient of friction≤ 0.23, engine rig test bore wear amount≤0.042mm solves valve guide bushing high temperature resistant, wear-resisting, self-lubricating, easily cut The performances such as processing are cut, the discharge standard of state V, Diesel engine of the working temperature below 500 DEG C is met and uses.
Embodiment 2:
A kind of Diesel engine valve guide bushing material, it is composed of the following components according to mass percent meter:Graphite 1.2%, Copper 4.0%, molybdenum disulfide 2.0%, calcirm-fluoride 1.5%, manganese sulfide 0.8%, aluminium bronze 10%, surplus is the molybdenum-iron powder containing molybdenum 1.5%.
Matched more than, the Diesel engine valve guide bushing produced using powder metallurgical technique, using bainite as matrix, with Solid lubrication phase（Molybdenum disulfide, calcirm-fluoride）, copper alloy phase（Copper, aluminium bronze）It is mutually lubrication phase, is hard using fine acicular martensite Matter phase, manganese sulfide using addition is as helping cutting agent；In the range of 100-500 DEG C high temperature friction and wear experiment coefficient of friction≤ 0.31, engine rig test bore wear amount≤0.037mm solves valve guide bushing high temperature resistant, wear-resisting, self-lubricating, easily cut The performances such as processing are cut, the discharge standard of state V, Diesel engine of the working temperature below 500 DEG C can be met and used.
Embodiment 3:
A kind of Diesel engine valve guide bushing material, it is composed of the following components according to mass percent meter:Graphite 0.85%, copper 3.0%, molybdenum disulfide 1.5%, calcirm-fluoride 1.0%, manganese sulfide 0.5%, aluminium bronze 5%, surplus is the molybdenum containing molybdenum 0.85% Iron powder.
Matched more than, the Diesel engine valve guide bushing produced using powder metallurgical technique, using bainite as matrix, with Solid lubrication phase（Molybdenum disulfide, calcirm-fluoride）, copper alloy phase（Copper, aluminium bronze）It is mutually lubrication phase, is hard using fine acicular martensite Matter phase, manganese sulfide using addition is as helping cutting agent；In the range of 100-500 DEG C high temperature friction and wear experiment coefficient of friction≤ 0.27, engine rig test bore wear amount≤0.039mm solves valve guide bushing high temperature resistant, wear-resisting, self-lubricating, easily cut The performances such as processing are cut, the discharge standard of state V, Diesel engine of the working temperature below 500 DEG C can be met and used.
Carried out below in terms of metallographic structure, high temperature friction and wear experiment, engine rig test with original-pack ironcasting Comparative analysis：
1. valve guide bushing metallographic structure
As it can be seen from table 1 embodiment 1,2,3 is main using the preferable bainite of combination property as matrix, with solid lubrication phase（Two Molybdenum sulfide, calcirm-fluoride）, copper alloy phase（Copper, aluminium bronze）It is mutually lubrication phase, using fine acicular martensite as hard phase, with addition Manganese sulfide meets the performances such as high temperature resistant, wear-resisting, self-lubricating, the Cutting free processing of material as cutting agent is helped.
Compared with original-pack ironcasting, matrix, lubrication phase, the hard phase of embodiment 1,2,3 are superior to original-pack cast iron Part, particularly lubricates in item and with the addition of aluminium bronze, worked at 500 DEG C with the good characteristics such as high intensity, corrosion-resistant, wear-resisting.
2. valve guide bushing high-temperature wearable and lubrication property：
Table 2 is embodiment 1,2,3 and high temperature friction and wear contrast test of the original-pack ironcasting in the range of 100-500 DEG C, with mill Damage and subtract the anti-wear performance that book amount evaluates material, the greasy property of material is evaluated with coefficient of friction.As can be seen from the test results, it is real Apply the anti-wear performance of example 1,2,3, greasy property and be far superior to original-pack ironcasting.
3. valve guide bushing engine pedestal test：
Table 3 is that embodiment 1,2,3 disassembles data with original-pack ironcasting in certain 11L Diesel engine bench test, from experiment As a result as can be seen that the wearability of embodiment 1,2,3 improves 8 times than original-pack ironcasting, design requirement and performance assessment criteria are met.
By the data analysis of embodiment 1,2,3, three kinds of embodiments are attained by and meet performance requirement, wherein：From effect Consider with terms of cost, embodiment 3 is most preferred embodiment.
In summary, there is high temperature resistant using Diesel engine valve guide bushing made from component provided by the present invention, it is resistance to The performances such as mill, self-lubricating, Cutting free processing, can meet the discharge standard of state V, diesel engine of the working temperature below 500 DEG C Machine is used.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Any modification, improvement for being made within principle etc., should be included in the scope of the protection.

Claims (6)

1. a kind of Diesel engine valve guide bushing material, it is characterised in that be made up of by mass percentage following components:Graphite 0.5-1.2%, copper 1.0-4.0%, molybdenum disulfide 0.2-3.0%, calcirm-fluoride 0.2-3.0%, manganese sulfide 0.2-1.0%, aluminium bronze 1- 10%, surplus is molybdenum-iron powder；It is made by following steps：The powder uniformly mixed by above component is loaded into full-automatic dry powder pressure Machine is suppressed, and pressed density is controlled in 6.95g/cm3More than, temperature control 1140 DEG C in sintering furnace sinter 4 hours, so Vacuum oil immersion is carried out afterwards and post-processing processing is made.
2. Diesel engine valve guide bushing material according to claim 1, it is characterised in that by following components according to quality Percentage is constituted:Graphite 0.5%, copper 2.0%, molybdenum disulfide 0.8%, calcirm-fluoride 0.6%, manganese sulfide 0.3%, aluminium bronze 3.0% is remaining Measure as molybdenum-iron powder.
3. Diesel engine valve guide bushing material according to claim 1, it is characterised in that by following components according to quality Percentage is constituted:Graphite 1.2%, copper 4.0%, molybdenum disulfide 2.0%, calcirm-fluoride 1.5%, manganese sulfide 0.8%, aluminium bronze 10%, surplus For molybdenum-iron powder.
4. Diesel engine valve guide bushing material according to claim 1, it is characterised in that by following components according to quality Percentage is constituted:Graphite 0.85%, copper 3.0%, molybdenum disulfide 1.5%, calcirm-fluoride 1.0%, manganese sulfide 0.5%, aluminium bronze 5%, surplus For molybdenum-iron powder.
5. according to any described Diesel engine valve guide bushing material of Claims 1-4, it is characterised in that the molybdenum-iron powder For the alloyed powder of the 0.2-2% containing molybdenum.
6. according to any described Diesel engine valve guide bushing material of Claims 1-4, it is characterised in that the aluminium bronze Powder is constituted according to mass percent：Nickel 2~6.5%, aluminium 2~12%, iron 3~8.5%, other≤2%, surplus is copper.
CN201710360816.9A 2017-05-22 2017-05-22 A kind of Diesel engine valve guide bushing material Pending CN107245670A (en)

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CN201710360816.9A CN107245670A (en) 2017-05-22 2017-05-22 A kind of Diesel engine valve guide bushing material

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110340346A (en) * 2019-07-15 2019-10-18 九江天时粉末制品有限公司 A kind of powdered metallurgical material and its application
CN112375991A (en) * 2020-11-11 2021-02-19 安徽金亿新材料股份有限公司 High-thermal-conductivity wear-resistant valve guide pipe material and preparation method thereof
CN112974794A (en) * 2021-02-03 2021-06-18 仪征亚新科双环活塞环有限公司 Powder metallurgy valve guide pipe and preparation method thereof
CN113046650A (en) * 2021-02-07 2021-06-29 浙江吉利控股集团有限公司 Valve guide pipe material and preparation method of valve guide pipe
CN113564491A (en) * 2021-07-02 2021-10-29 安徽森拓新材料有限公司 High-performance powder metallurgy valve guide pipe material

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CN102655966A (en) * 2009-10-15 2012-09-05 费德罗-莫格尔公司 Iron-based sintered powder metal for wear resistant applications

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JPS62284036A (en) * 1986-05-30 1987-12-09 Teikoku Carbon Kogyo Kk Production of wear resistant sintered ferrous alloy for sliding for current collection use
CN1768985A (en) * 2004-09-27 2006-05-10 杰富意钢铁株式会社 Iron-based mixed powder for powder metallurgy and sintered body
CN102655966A (en) * 2009-10-15 2012-09-05 费德罗-莫格尔公司 Iron-based sintered powder metal for wear resistant applications

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110340346A (en) * 2019-07-15 2019-10-18 九江天时粉末制品有限公司 A kind of powdered metallurgical material and its application
CN112375991A (en) * 2020-11-11 2021-02-19 安徽金亿新材料股份有限公司 High-thermal-conductivity wear-resistant valve guide pipe material and preparation method thereof
CN112974794A (en) * 2021-02-03 2021-06-18 仪征亚新科双环活塞环有限公司 Powder metallurgy valve guide pipe and preparation method thereof
CN112974794B (en) * 2021-02-03 2023-11-03 仪征亚新科双环活塞环有限公司 Powder metallurgy valve guide
CN113046650A (en) * 2021-02-07 2021-06-29 浙江吉利控股集团有限公司 Valve guide pipe material and preparation method of valve guide pipe
CN113564491A (en) * 2021-07-02 2021-10-29 安徽森拓新材料有限公司 High-performance powder metallurgy valve guide pipe material

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Application publication date: 20171013