CN107042301A - A kind of valve guide bushing - Google Patents
A kind of valve guide bushing Download PDFInfo
- Publication number
- CN107042301A CN107042301A CN201710151096.5A CN201710151096A CN107042301A CN 107042301 A CN107042301 A CN 107042301A CN 201710151096 A CN201710151096 A CN 201710151096A CN 107042301 A CN107042301 A CN 107042301A
- Authority
- CN
- China
- Prior art keywords
- valve guide
- guide bushing
- metal materials
- powder metal
- graphite
- 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
Links
- 239000000843 powder Substances 0.000 claims abstract description 29
- 239000007769 metal material Substances 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000010439 graphite Substances 0.000 claims abstract description 12
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 12
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 6
- 239000007822 coupling agent Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 239000011574 phosphorus Substances 0.000 claims abstract description 4
- CADICXFYUNYKGD-UHFFFAOYSA-N sulfanylidenemanganese Chemical compound [Mn]=S CADICXFYUNYKGD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 239000011701 zinc Substances 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000012255 powdered metal Substances 0.000 claims 1
- -1 wherein Substances 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- B22F1/0003—
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- 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
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of valve guide bushing, described valve guide bushing is made up of powder metal materials, wherein, the weight percentage composition of powder metal materials is：Graphite 1.8 2.5%, copper 1.0 3.0%, manganese sulfide 0.4 1.5%, phosphorus 0.1 0.2%, zinc 0.01 0.05%, tungsten carbide 0.1 0.3%, it is other≤3%, surplus be Fe, impurity≤1.0%, it is described be made in the powder metal materials of valve guide bushing be added with auxiliary agent.A kind of valve guide bushing of the present invention, is made up of powder metal materials, graphite is contained in powder metal materials, graphite, which has in fine greasy property and thermal conductivity, powder metal materials, contains tungsten carbide, adds the wearability and hardness of valve guide bushing.Added with coupling agent, improve the physical and mechanical properties of product, make the reduction of product water absorption rate.
Description
Technical field
The present invention relates to valve guide bushing technical field, more particularly to a kind of valve guide bushing.
Background technology
Valve guide bushing is the guider of automotive engine valves, and valve is play the guiding role, and makes the heat on valve stem
Amount is transmitted to cylinder cover through valve guide bushing, and valve guide bushing is a strength member for guiding engine valve opening and closing motion.
The function of valve guide bushing is oriented to valve motion, and is valve stem heat transfer, traditional cast iron valve guide bushing
Its greasy property is poor, and its technological level is low, backward in technique, and homogeneity of product is poor.Cast iron is produced by high temperature melting
Change, so when cooled to room temperature, because core is different from the cooldown rate at edge, tissue at room temperature is inevitable different, edge
Because cooling is very fast, fine microstructures, core cooling is slower, organizes thicker, internal stress is larger, easily produces processing and uses
Deformation.And probably it is mingled with cast and is not discharged with bubble, so results in interiors of products and have gross blow hole production
It is raw, the decline of mechanical strength is caused, the hole of ironcasting is dead-end pore, is substantially free of oil.Ironcasting is due to being molten state
Production, high energy consumption, efficiency is low.Valve guide bushing is conceived to market future developing trend, because the working environment of valve guide bushing compares
Special, the thermal conductivity and lubricity of existing valve guide bushing also need to further improvement.
The content of the invention
The problem of can not reaching requirement for the thermal conductivity and lubricity of above-mentioned existing valve guide bushing, the present invention will
The technical problem of solution is to provide a kind of valve guide bushing.
In order to solve the above technical problems, the technical scheme is that：A kind of valve guide bushing, described valve guide bushing is
It is made up of powder metal materials, wherein, the weight percentage composition of powder metal materials is：Graphite 1.8-2.5%, copper
1.0-3.0%, manganese sulfide 0.4-1.5%, phosphorus 0.1-0.2%, zinc 0.01-0.05%, tungsten carbide 0.1-0.3%, it is other≤
3%th, surplus is Fe, impurity≤1.0%, and described being made in the powder metal materials of valve guide bushing is added with auxiliary agent.
The preferred scheme of such scheme is：Described is made in the powder metal materials of valve guide bushing using Fe as matrix.
The preferred scheme of such scheme is：Described auxiliary agent is Cutting free agent and coupling agent.
The preferred scheme of such scheme is：The valve guide bushing being made itself contains 15-20% hole.
Beneficial effect：Using above-mentioned technical proposal, a kind of valve guide bushing of the invention is made up of powder metal materials
, graphite is contained in powder metal materials, graphite has fine greasy property and thermal conductivity, and made valve guide bushing itself contains
The hole for having 15-20% can store lubricating oil, it is ensured that the oil content of conduit, in the case of without additional lubrication, have well
Self-lubricating property；Contain tungsten carbide in powder metal materials, add the wearability and hardness of valve guide bushing.Added with easily cutting
Agent is cut, is conducive to cutting, the dimensional accuracy of following process and surface roughness control is completely secured within 0.01mm requirements.
Coupling agent is also added with, improves the physical and mechanical properties of product, makes the reduction of product water absorption rate.
Embodiment
The embodiment to the present invention is described further below.Herein it should be noted that for these implementations
The explanation of mode is used to help understand the present invention, but does not constitute limitation of the invention.In addition, this hair disclosed below
As long as involved technical characteristic does not constitute conflict and can be just mutually combined each other in each bright embodiment.
The invention provides a kind of valve guide bushing, it is characterised in that described valve guide bushing is by powder metal materials system
Into, wherein, the weight percentage composition of powder metal materials is：Graphite 1.8-2.5%, copper 1.0-3.0%, manganese sulfide
0.4-1.5%, phosphorus 0.1-0.2%, zinc 0.01-0.05%, tungsten carbide 0.1-0.3%, it is other≤3%, surplus be Fe, impurity
≤ 1.0%, described being made in the powder metal materials of valve guide bushing is added with auxiliary agent.
A kind of valve guide bushing of the present invention, is made up of powder metal materials, graphite is contained in powder metal materials,
Graphite has fine greasy property and thermal conductivity, the heat on valve stem is rapidly transmitted to cylinder cover after valve guide bushing.
A kind of valve guide bushing of the present invention, is made up of powder metal materials, and carbonization is contained in powder metal materials
Tungsten, adds the wearability and hardness of valve guide bushing, increases valve guide bushing performance.
Coupling agent is with the addition of in the present invention in the powder metal materials for be made valve guide bushing, improves the physical machine of product
Tool performance, makes the reduction of product water absorption rate, improves processing characteristics, die wear is reduced, improve product quality, reduction is produced into
This, thus with obvious economic benefit
Cutting free agent is added in the present invention in the powder metal materials for be made valve guide bushing, is conducive to cutting, protects completely
The dimensional accuracy and surface roughness for demonstrate,proving following process are controlled within 0.01mm requirements.
The specific targets of valve seat insert being made using the powder metal materials of the present invention are：
Apparent hardness (containing space) 110-160HRB；
Density 7.0-7.7g/cm3；
Crushing strength K >=628Mpa；
Content of pearlite in alloy >=60%；
In summary, a kind of valve guide bushing provided of the invention, is made up of powder metal materials, powder gold
Contain graphite in category material, graphite has fine greasy property and thermal conductivity, and made valve guide bushing itself contains 15-20%
Hole can store lubricating oil, it is ensured that the oil content of conduit, in the case of without additional lubrication, there is good self lubricity
Energy；Contain tungsten carbide in powder metal materials, add the wearability and hardness of valve guide bushing.Added with Cutting free agent, favorably
In cutting, the dimensional accuracy of following process and surface roughness control is completely secured within 0.01mm requirements.Also added with even
Join agent, improve the physical and mechanical properties of product, make the reduction of product water absorption rate.
Embodiments of the present invention are explained in detail above, but the invention is not restricted to described embodiment.It is right
For those skilled in the art, in the case where not departing from the principle of the invention and spirit, these embodiments are carried out many
Change, modification, replacement and modification are planted, are still fallen within protection scope of the present invention.
Claims (4)
1. a kind of valve guide bushing, it is characterised in that described valve guide bushing is made up of powder metal materials, wherein, powder gold
The weight percentage of category material, which is constituted, is：Graphite 1.8-2.5%, copper 1.0-3.0%, manganese sulfide 0.4-1.5%, phosphorus 0.1-
0.2%th, zinc 0.01-0.05%, tungsten carbide 0.1-0.3%, it is other≤3%, surplus be Fe, impurity≤1.0%, described is made
Auxiliary agent is added with the powder metal materials of valve guide bushing.
2. a kind of valve guide bushing according to claim 1, it is characterised in that the described powdered-metal that valve guide bushing is made
Material is using iron as matrix.
3. a kind of valve guide bushing according to claim 1, it is characterised in that：Described auxiliary agent is Cutting free agent and coupling
Agent.
4. a kind of valve guide bushing according to claim 1, it is characterised in that：The valve guide bushing being made contains itself
15-20% hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151096.5A CN107042301A (en) | 2017-03-14 | 2017-03-14 | A kind of valve guide bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151096.5A CN107042301A (en) | 2017-03-14 | 2017-03-14 | A kind of valve guide bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107042301A true CN107042301A (en) | 2017-08-15 |
Family
ID=59545195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710151096.5A Pending CN107042301A (en) | 2017-03-14 | 2017-03-14 | A kind of valve guide bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107042301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56142803A (en) * | 1980-04-03 | 1981-11-07 | Tanaka Kikinzoku Kogyo Kk | Preparation of composite powder |
| KR950008686B1 (en) * | 1993-10-13 | 1995-08-04 | 충남대학교부속급속응고신소재연구소 | Device of continous degasification and compression forming for powder |
| CN1514117A (en) * | 2003-06-27 | 2004-07-21 | 绵阳新晨动力机械有限公司 | Gasoline engine valve guide tube |
| CN102102161A (en) * | 2009-12-21 | 2011-06-22 | 日立粉末冶金株式会社 | Sintered valve guide and a method of making a sintered valve guide |
| CN102189262A (en) * | 2011-04-26 | 2011-09-21 | 常熟市双月机械有限公司 | Valve guide pipe |
-
2017
- 2017-03-14 CN CN201710151096.5A patent/CN107042301A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56142803A (en) * | 1980-04-03 | 1981-11-07 | Tanaka Kikinzoku Kogyo Kk | Preparation of composite powder |
| KR950008686B1 (en) * | 1993-10-13 | 1995-08-04 | 충남대학교부속급속응고신소재연구소 | Device of continous degasification and compression forming for powder |
| CN1514117A (en) * | 2003-06-27 | 2004-07-21 | 绵阳新晨动力机械有限公司 | Gasoline engine valve guide tube |
| CN102102161A (en) * | 2009-12-21 | 2011-06-22 | 日立粉末冶金株式会社 | Sintered valve guide and a method of making a sintered valve guide |
| CN102189262A (en) * | 2011-04-26 | 2011-09-21 | 常熟市双月机械有限公司 | Valve guide pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170815 |
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| RJ01 | Rejection of invention patent application after publication |