CN107326247A - A kind of preparation method of heat resistant and wear resistant piston - Google Patents
A kind of preparation method of heat resistant and wear resistant piston Download PDFInfo
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- CN107326247A CN107326247A CN201710456476.XA CN201710456476A CN107326247A CN 107326247 A CN107326247 A CN 107326247A CN 201710456476 A CN201710456476 A CN 201710456476A CN 107326247 A CN107326247 A CN 107326247A
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- parts
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- heat resistant
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/008—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of engine cylinder parts or of piston parts other than piston rings
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/02—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of piston rings
-
- 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
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- 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
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0005—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- 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
- F02F3/00—Pistons
- F02F3/0084—Pistons the pistons being constructed from specific materials
-
- 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
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/90—Alloys not otherwise provided for
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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)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Powder Metallurgy (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of preparation method of heat resistant and wear resistant piston, it is made by following raw material：70 80 parts of bronze powder, 40 50 parts of silicon nitride, 15 20 parts of graphite, 10 20 parts of cinnabar powder, three 10 20 parts of two tin of oxidation, 6 14 parts of nickel powder, 48 parts of cuprous iodide, 68 parts of nano titanium carbide, 36 parts of potassium oxide, 3 11 parts of powder of stainless steel, 35 parts of beryllium oxide, wherein auxiliary agent are by polycaprolactone diols, tripropylene glycol diacrylate according to weight than 67：1：2 compositions.Heat resistant and wear resistant piston produced by the present invention has high temperature resistant, wearability good, with rare-earth elements and nano particle, improves structure, dense structure, microstructure is good, and seldom, the rigidity of structure, hardness, fatigue performance, tensile strength properties are excellent for hole.
Description
Technical field
The invention belongs to field of powder metallurgy, it is related to a kind of preparation method of heat resistant and wear resistant piston.
Technical background
Piston is engine key components and parts, and the quality of its performance directly decides the performance of engine and vehicle.With
Hyundai Motor is continued to develop, and engine develops to high-power, high pulling torque, low oil consumption, low noise, low emission direction, it is desirable to piston
With light weight, thermal coefficient of expansion is small, thermal conductivity is good, intensity is high and wear-resistant under the condition of high temperature the features such as.How piston is solved resistance to
High temperature, wear-resisting, Abrasion properties are plunger designs and the key for manufacturing process.In order to reduce energy consumption, reduction atmosphere pollution, carry
The efficiency of high internal combustion engine, improve ignition temperature turns into the important development trend of internal combustion engine, accordingly to the height of internal combustion engine part
Warm intensity and high temperature abrasion resistance propose higher requirement.The thermal coefficient of expansions of Al-Si alloys is small, wearability is higher, weight compared with
Gently, it is most common piston material., need to be to piston to improve the high-temperature behavior of alloy but the elevated temperature strength of Al-Si alloys is relatively low
Composition and preparation technology be improved.But conventional casting methods and machining process complex process, quality stability compared with
Difference, takes material, and can not prepare complex parts.And powder metallurgy is not limited by melting, alloying component can be both added, can also be added
Enter other structures component, and be adjusted as requested in sizable scope, so can reach in mechanical property with
The effect of Components Matching.Powder metallurgy mechanization degree is high, can reduce personnel, efficiency can be improved again, and then cost-effective.Powder
Last metallurgical technology can replace traditional manufacturing process, be that the vast traditional forms of enterprises is cost-effective.So studying various components of machine
Powder metallurgy formula, adapt to it is different the need for, have great importance.And nano material can meet traditional material and be reached
Less than requirement, while using nano material the particular/special requirement in metal processing sectors to material property can be met, but existing
There is disclosure of the Application of micron in PM technique in technology also seldom, and technology is immature.Current nano material
The subject matter existed using technology is the agglomeration traits of nano powder granular material, cause powder granule material in use by
The particle agglomeration formed by caused by particle surface tension force, agglomerated particle is carried out so as to cause to add chemical breakdown agent in use
Decomposition could normally use, but increase and chemical contamination using difficulty are so can bring about, while reducing using effect
Rate, this just limits application of this nano material in PM technique.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of preparation method of heat resistant and wear resistant piston.
The purpose of the present invention is achieved through the following technical solutions：A kind of preparation method of heat resistant and wear resistant piston, bag
Include following steps：First 70-80 parts of bronze powder, 40-50 parts of silicon nitride, 15-20 parts of graphite, cinnabar powder 10-20 are weighed by weight
Part, three 10-20 parts of two tin of oxidation, 6-14 parts of nickel powder, 4-8 parts of cuprous iodide, 6-8 parts of nano titanium carbide, 3-6 parts of potassium oxide, no
3-11 parts of powdered steel of rust, 3-5 parts of beryllium oxide, wherein auxiliary agent are by polycaprolactone diols, tripropylene glycol diacrylate according to weight
Amount compares 6-7：1：2 compositions；Raw material in addition to auxiliary agent is put into batch mixer and mixes 10-12h, auxiliary agent mixing 3- is then added
7h, obtains compound, and batch mixer rotating speed is 40-45 revs/min；Compound is poured into mould and struck off, using conventional method
Cold moudling on a hydraulic press, the pressure that pressed compact unit area is born is 500-600MPa；Then it is placed in pressurized sintering furnace
Row sintering, is warming up to 750-850 DEG C under logical hydrogen atmosphere to the pressurized sintering furnace and is incubated 3-6h, be forced into 14-18kg/
cm2And pressurize；After terminating, furnace cooling is to after 700 DEG C；Water cooling is come out of the stove to less than 60 DEG C releases.
Weigh by weight 75 parts of bronze powder, 45 parts of silicon nitride, 8 parts of graphite, 15 parts of cinnabar powder, three oxidation 15 parts of two tin,
10 parts of nickel powder, 6 parts of cuprous iodide, 7 parts of nano titanium carbide, 5 parts of potassium oxide, 7 parts of powder of stainless steel, 4 parts of beryllium oxide.
The auxiliary agent compares 6.5 by polycaprolactone diols, tripropylene glycol diacrylate according to weight：1：2 compositions.
The pressure that the pressed compact unit area is born is 550MPa.
800 DEG C are warming up under logical hydrogen atmosphere to the pressurized sintering furnace and 4.5h is incubated, 16kg/cm is forced into2And
Pressurize.
The invention has the advantages that：Heat resistant and wear resistant piston produced by the present invention has high temperature resistant, wearability good,
With rare-earth elements and nano particle, structure is improved, dense structure, microstructure is good, seldom, structure is firm for hole
Degree, hardness, fatigue performance, tensile strength properties are excellent.
Embodiment
Embodiment 1
A kind of preparation method of heat resistant and wear resistant piston, comprises the following steps：First 70 parts of bronze powder, silicon nitride are weighed by weight
40 parts, 15 parts of graphite, 10 parts of cinnabar powder, three 10 parts of two tin of oxidation, 6 parts of nickel powder, 4 parts of cuprous iodide, nano titanium carbide part, oxidation
3 parts of potassium, 3 parts of powder of stainless steel, 3 parts of beryllium oxide, wherein auxiliary agent by polycaprolactone diols, tripropylene glycol diacrylate according to
Weight compares 6：1：2 compositions；Raw material in addition to auxiliary agent is put into batch mixer and mixes 10-12h, auxiliary agent mixing 3- is then added
7h, obtains compound, and batch mixer rotating speed is 40-45 revs/min；Compound is poured into mould and struck off, using conventional method
Cold moudling on a hydraulic press, the pressure that pressed compact unit area is born is 500MPa；Then it is placed in pressurized sintering furnace and is burnt
Knot, is warming up to 750 DEG C under logical hydrogen atmosphere to the pressurized sintering furnace and is incubated 3h, be forced into 14kg/cm2And pressurize；Burn
After terminating, furnace cooling is to after 700 DEG C；Water cooling is come out of the stove to less than 60 DEG C releases.
Embodiment 2
A kind of preparation method of heat resistant and wear resistant piston, comprises the following steps：First 80 parts of bronze powder, silicon nitride are weighed by weight
50 parts, 20 parts of graphite, 20 parts of cinnabar powder, three oxidation 20 parts of two tin, 14 parts of nickel powder, 8 parts of cuprous iodide, 8 parts of nano titanium carbide, oxygen
Change 6 parts of potassium, 11 parts of powder of stainless steel, 5 parts of beryllium oxide, wherein auxiliary agent is by polycaprolactone diols, tripropylene glycol diacrylate
Compare 7 according to weight：1：2 compositions；Raw material in addition to auxiliary agent is put into batch mixer and mixes 10-12h, auxiliary agent is then added and mixes
3-7h is closed, compound is obtained, batch mixer rotating speed is 40-45 revs/min；Compound is poured into mould and struck off, using routine
Method cold moudling on a hydraulic press, the pressure that pressed compact unit area is born is 600MPa；Then it is placed in pressurized sintering furnace
Row sintering, is warming up to 850 DEG C under logical hydrogen atmosphere to the pressurized sintering furnace and is incubated 6h, be forced into 18kg/cm2And protect
Pressure；After terminating, furnace cooling is to after 700 DEG C；Water cooling is come out of the stove to less than 60 DEG C releases.
Embodiment 3
A kind of preparation method of heat resistant and wear resistant piston, comprises the following steps：First 75 parts of bronze powder, silicon nitride are weighed by weight
45 parts, 8 parts of graphite, 15 parts of cinnabar powder, three oxidation 15 parts of two tin, 10 parts of nickel powder, 6 parts of cuprous iodide, 7 parts of nano titanium carbide, oxygen
Change 5 parts of potassium, 7 parts of powder of stainless steel, 4 parts of beryllium oxide, wherein auxiliary agent is pressed by polycaprolactone diols, tripropylene glycol diacrylate
Compare 6.5 according to weight：1：2 compositions；Raw material in addition to auxiliary agent is put into batch mixer and mixes 10-12h, auxiliary agent is then added and mixes
3-7h is closed, compound is obtained, batch mixer rotating speed is 40-45 revs/min；Compound is poured into mould and struck off, using routine
Method cold moudling on a hydraulic press, the pressure that pressed compact unit area is born is 550MPa；Then it is placed in pressurized sintering furnace
Row sintering, is warming up to 800 DEG C under logical hydrogen atmosphere to the pressurized sintering furnace and is incubated 4.5h, be forced into 16kg/cm2And protect
Pressure；After terminating, furnace cooling is to after 700 DEG C；Water cooling is come out of the stove to less than 60 DEG C releases.
Claims (5)
1. a kind of preparation method of heat resistant and wear resistant piston, it is characterised in that the described method comprises the following steps：First by weight
Weigh 70-80 parts of bronze powder, 40-50 parts of silicon nitride, 15-20 parts of graphite, 10-20 parts of cinnabar powder, three oxidation 10-20 parts of two tin,
6-14 parts of nickel powder, 4-8 parts of cuprous iodide, 6-8 parts of nano titanium carbide, 3-6 parts of potassium oxide, 3-11 parts of powder of stainless steel, beryllium oxide
3-5 parts, wherein auxiliary agent compares 6-7 by polycaprolactone diols, tripropylene glycol diacrylate according to weight：1：2 compositions；It will remove
Raw material beyond auxiliary agent, which is put into batch mixer, mixes 10-12h, then adds auxiliary agent mixing 3-7h, obtains compound, and batch mixer turns
Speed is 40-45 revs/min；Compound is poured into mould and struck off, using conventional method cold moudling on a hydraulic press, pressed compact
The pressure that unit area is born is 500-600MPa；Then it is placed in pressurized sintering furnace and is sintered, to the pressurized sintering furnace
750-850 DEG C is warming up under logical hydrogen atmosphere and 3-6h is incubated, and is forced into 14-18kg/cm2And pressurize；After terminating, with
Stove is cooled to after 700 DEG C；Water cooling is come out of the stove to less than 60 DEG C releases.
2. a kind of preparation method of heat resistant and wear resistant piston according to claim 1, it is characterised in that：Weigh by weight
75 parts of bronze powder, 45 parts of silicon nitride, 8 parts of graphite, 15 parts of cinnabar powder, three oxidation 15 parts of two tin, 10 parts of nickel powder, 6 parts of cuprous iodide,
7 parts of nano titanium carbide, 5 parts of potassium oxide, 7 parts of powder of stainless steel, 4 parts of beryllium oxide.
3. a kind of preparation method of heat resistant and wear resistant piston according to claim 1, it is characterised in that：The auxiliary agent is by gathering
Caprolactone dihydric alcohol, tripropylene glycol diacrylate compare 6.5 according to weight：1：2 compositions.
4. a kind of preparation method of heat resistant and wear resistant piston according to claim 1, it is characterised in that：The pressed compact unit
The pressure that area is born is 550MPa.
5. a kind of preparation method of heat resistant and wear resistant piston according to claim 1, it is characterised in that：The pressurization is burnt
Freezing of a furnace is warming up to 800 DEG C under logical hydrogen atmosphere and is incubated 4.5h, is forced into 16kg/cm2And pressurize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710456476.XA CN107326247A (en) | 2017-06-16 | 2017-06-16 | A kind of preparation method of heat resistant and wear resistant piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710456476.XA CN107326247A (en) | 2017-06-16 | 2017-06-16 | A kind of preparation method of heat resistant and wear resistant piston |
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| Publication Number | Publication Date |
|---|---|
| CN107326247A true CN107326247A (en) | 2017-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710456476.XA Pending CN107326247A (en) | 2017-06-16 | 2017-06-16 | A kind of preparation method of heat resistant and wear resistant piston |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881396A (en) * | 2017-11-30 | 2018-04-06 | 无锡昊瑜节能环保设备有限公司 | A kind of preparation method of automobile brake sheet low noise powdered metallurgical material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978434A (en) * | 2012-12-13 | 2013-03-20 | 北京科技大学 | Short fiber-particle synergetically-reinforced copper-based composite material and preparation method thereof |
| CN105483420A (en) * | 2015-12-11 | 2016-04-13 | 苏州第一元素纳米技术有限公司 | Nano-carbon-reinforced wear-resistant composite material |
-
2017
- 2017-06-16 CN CN201710456476.XA patent/CN107326247A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978434A (en) * | 2012-12-13 | 2013-03-20 | 北京科技大学 | Short fiber-particle synergetically-reinforced copper-based composite material and preparation method thereof |
| CN105483420A (en) * | 2015-12-11 | 2016-04-13 | 苏州第一元素纳米技术有限公司 | Nano-carbon-reinforced wear-resistant composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881396A (en) * | 2017-11-30 | 2018-04-06 | 无锡昊瑜节能环保设备有限公司 | A kind of preparation method of automobile brake sheet low noise powdered metallurgical material |
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Application publication date: 20171107 |