CN108342623A - A kind of composite piston material and preparation method thereof - Google Patents
A kind of composite piston material and preparation method thereof Download PDFInfo
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- CN108342623A CN108342623A CN201810264255.7A CN201810264255A CN108342623A CN 108342623 A CN108342623 A CN 108342623A CN 201810264255 A CN201810264255 A CN 201810264255A CN 108342623 A CN108342623 A CN 108342623A
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- parts
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- raw material
- composite piston
- molybdenum disulfide
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1005—Pretreatment of the non-metallic additives
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- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- 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
- C22C32/0047—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 carbides, nitrides, borides or silicides as the main non-metallic constituents
Abstract
The invention discloses a kind of composite piston materials, include the raw material of following parts by weight：6.5 7.5 parts of silica flour, 0.3 0.5 parts of magnesium powder, 0.06 0.10 parts of titanium valve, 0.1 0.2 parts of yttrium powder, 67 parts of carborundum powder, 23 parts of molybdenum disulfide, 0.2 0.5 parts of hafnium powder, 85 100 parts of aluminium powder.The invention also discloses a kind of preparation methods of composite piston material, and steps are as follows：Claim raw material；By silica flour, magnesium powder, titanium valve, yttrium powder, hafnium powder and aluminium powder ball milling, sieving, mixing；(3) it by carborundum powder heating, heat preservation, is fully reacted with oxygen, and silica is formed on surface layer；(4) by mixed raw material heating, degasification, heat preservation, then cool down, be subsequently added into molybdenum disulfide, silicon carbide, stirring to get.The present invention is added adjustment proportioning by a certain percentage by the alloying element being affected to high-temperature behavior and wear-resisting property, to improve elevated temperature strength, the wear-resisting property of material.
Description
Technical field
The present invention relates to new material technology fields more particularly to a kind of composite piston material and preparation method thereof.
Background technology
Piston is referred to as the heart of engine, subject in the course of work of engine lasting alternation mechanical load and
Thermal force belongs to the vital part that operating condition is the most severe in engine.Since piston is under the operating mode of high temperature and pressure high speed
Work, piston material must have higher elevated temperature strength and preferable wearability, to maintain the working efficiency of engine stabilizer.
It is fire resistant aluminum alloy, cast iron and cast steel material currently to lead piston material to be used.Wherein, it is closed with high temperature resistant aluminium
Gold is most widely used.But with truck, railway locomotive and marine engines are all to high power, high load capacity,
Harsh emission request direction is developed, and existing fire resistant aluminum alloy has been increasingly difficult to adaption demand.However, cast iron and cast steel
Density it is excessive, it is difficult to meet comprehensive performance demand of the modern efficient energy engine to piston.
Therefore, it is badly in need of being improved the ingredient and preparation process of piston material at present.
Invention content
Technical problem to be solved by the present invention lies in providing, a kind of elevated temperature strength is good, and anti abrasive composite piston material
And preparation method thereof.
The present invention is achieved by the following technical solutions：A kind of composite piston material, includes the original of following parts by weight
Material：6.5-7.5 parts of silica flour, 0.3-0.5 parts of magnesium powder, 0.06-0.10 parts of titanium valve, 0.1-0.2 parts of yttrium powder, 6-7 parts of carborundum powder, two
2-3 parts of molybdenum sulfide, 0.2-0.5 parts of hafnium powder, 85-100 parts of aluminium powder.
One of preferred embodiment as the present invention, includes the raw material of following parts by weight：7.0 parts of silica flour, 0.4 part of magnesium powder,
0.08 part of titanium valve, 0.15 part of yttrium powder, 6.5 parts of carborundum powder, 2.5 parts of molybdenum disulfide, 0.35 part of hafnium powder, 92 parts of aluminium powder.
One of preferred embodiment as the present invention, includes the raw material of following parts by weight：6.8 parts of silica flour, 0.35 part of magnesium powder,
0.07 part of titanium valve, 0.12 part of yttrium powder, 6.2 parts of carborundum powder, 2.2 parts of molybdenum disulfide, 0.3 part of hafnium powder, 90 parts of aluminium powder.
One of preferred embodiment as the present invention, includes the raw material of following parts by weight：7.2 parts of silica flour, 0.45 part of magnesium powder,
0.09 part of titanium valve, 0.18 part of yttrium powder, 6.8 parts of carborundum powder, 2.8 parts of molybdenum disulfide, 0.45 part of hafnium powder, 96 parts of aluminium powder.
One of preferred embodiment as the present invention, includes the raw material of following parts by weight：7.4 parts of silica flour, 0.48 part of magnesium powder,
0.096 part of titanium valve, 0.19 part of yttrium powder, 6.9 parts of carborundum powder, 2.9 parts of molybdenum disulfide, 0.48 part of hafnium powder, 98 parts of aluminium powder.
One of preferred embodiment as the present invention, the carborundum powder is specially the carborundum powder of 300-310 mesh.
One of preferred embodiment as the present invention, the molybdenum disulfide is specially the molybdenum disulfide of 305-325 mesh.
A method of above-mentioned composite piston material is prepared, is included the following steps：
(1) the piston material raw material of above-mentioned parts by weight is weighed respectively；
(2) silica flour weighed, magnesium powder, titanium valve, yttrium powder, hafnium powder and aluminium powder are distinguished into ball milling, sieve are crossed after ball milling, then into
Row mixing, obtains preliminary mixed raw material；
(3) carborundum powder of above-mentioned parts by weight is heated to 1110-1130 DEG C, and carries out the heat preservation of 2-3h, make carbonization
Silicon is fully reacted with oxygen, and forms silica on surface layer；
(4) the preliminary mixed raw material that step (2) obtains first is heated to 760-800 DEG C, degasification, keeps the temperature 4-6min, then drop
Temperature is separately added into the molybdenum disulfide of above-mentioned parts by weight into melt to 680-700 DEG C, then and after surface oxidation treatment
Silicon carbide stirs 4-8min, obtains composite piston material.
One of preferred embodiment as the present invention, sieve is 110-140 mesh screens in the step (2).
One of preferred embodiment as the present invention, the sieve is specially 125 mesh screens.
The effect of each raw material of the present invention：
Si has highest normal temperature strength and elevated temperature strength in proper range；Mg, Y improve tensile strength；Hf improves alloy
Testing Tensile Strength at Elevated Temperature, enhance volume stability；Ti and Al forms TiAl2Phase becomes heterogeneous necleus when crystallization, plays refinement
The effect of cast sturcture and seam organization；Suitable reinforcing material SiC and lubriation material MoS2In conjunction with aluminium alloy, aluminium can retained
On the basis of alloy low-density, high-termal conductivity, intensity and wearability are further increased.
The present invention compared with prior art the advantages of be：
(1) adjustment is added by a certain percentage by the alloying element for being affected to high-temperature behavior with wear-resisting property to match
Than to improve the elevated temperature strength and wear-resisting property of material, it is good finally to obtain a kind of elevated temperature strength, and anti abrasive composite piston
Material；The material further increases its intensity and wearability on the basis of retaining traditional aluminium alloy low-density, high-termal conductivity；
(2) because SiC cannot be by Al liquid good wets at 1000 DEG C or less, and " 4Al+3SiC=occurs with Al at high temperature
Al4C3The brittlement phase Al of generation is reacted in the reaction of+3Si "4C3It is distributed on the interface of SiC/Al, weakens interface bond strength,
Therefore SiC is subjected to surface oxidation treatment；The present invention is used is heated to 1110-1130 DEG C by SiC, and carries out the heat preservation of 2-3h, makes
SiC is fully reacted with oxygen, and appropriate SiO is formed on surface layer2, following reaction " 3SiO occurs at high temperature2+ 4Al=3Si+
2Al2O3", the Si of generation is solid-solution in Al, and Al2O3To improve SiC and Al wetability it is very helpful, and at high temperature with its
In Mg also occur that following reaction：2SiO2+ 2Al+Mg=MgAl2O4+2Si；Magnesia spinel (the MgAl of generation2O4) can be compared with
It is adsorbed on around SiC by force, and a type of metal can be used as to carry out good wet with matrix Al.
Specific implementation mode
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
A kind of composite piston material of the present embodiment, includes the raw material of following parts by weight：6.5 parts of silica flour, magnesium powder 0.3
Part, 0.06 part of titanium valve, 0.1 part of yttrium powder, 6 parts of carborundum powder, 2 parts of molybdenum disulfide, 0.2 part of hafnium powder, 85 parts of aluminium powder；Wherein, it is carbonized
Silica flour is 300 mesh, and molybdenum disulfide is 305 mesh.
Embodiment 2
A kind of composite piston material of the present embodiment, includes the raw material of following parts by weight：7.5 parts of silica flour, magnesium powder 0.5
Part, 0.10 part of titanium valve, 0.2 part of yttrium powder, 7 parts of carborundum powder, 3 parts of molybdenum disulfide, 0.5 part of hafnium powder, 100 parts of aluminium powder；Wherein, it is carbonized
Silica flour is 310 mesh, and molybdenum disulfide is 325 mesh.
Embodiment 3
A kind of composite piston material of the present embodiment, includes the raw material of following parts by weight：7.0 parts of silica flour, magnesium powder 0.4
Part, 0.08 part of titanium valve, 0.15 part of yttrium powder, 6.5 parts of carborundum powder, 2.5 parts of molybdenum disulfide, 0.35 part of hafnium powder, 92 parts of aluminium powder；Its
In, carborundum powder is 305 mesh, and molybdenum disulfide is 315 mesh.
Embodiment 4
A kind of composite piston material of the present embodiment, includes the raw material of following parts by weight：6.8 parts of silica flour, magnesium powder 0.35
Part, 0.07 part of titanium valve, 0.12 part of yttrium powder, 6.2 parts of carborundum powder, 2.2 parts of molybdenum disulfide, 0.3 part of hafnium powder, 90 parts of aluminium powder；Wherein,
Carborundum powder is 302 mesh, and molybdenum disulfide is 310 mesh.
Embodiment 5
A kind of composite piston material of the present embodiment, includes the raw material of following parts by weight：7.2 parts of silica flour, magnesium powder 0.45
Part, 0.09 part of titanium valve, 0.18 part of yttrium powder, 6.8 parts of carborundum powder, 2.8 parts of molybdenum disulfide, 0.45 part of hafnium powder, 96 parts of aluminium powder；Its
In, carborundum powder is 308 mesh, and molybdenum disulfide is 320 mesh.
Embodiment 6
A kind of composite piston material of the present embodiment, includes the raw material of following parts by weight：7.4 parts of silica flour, magnesium powder 0.48
Part, 0.096 part of titanium valve, 0.19 part of yttrium powder, 6.9 parts of carborundum powder, 2.9 parts of molybdenum disulfide, 0.48 part of hafnium powder, 98 parts of aluminium powder；Its
In, carborundum powder is 309 mesh, and molybdenum disulfide is 322 mesh.
Embodiment 7
A kind of method preparing above-described embodiment composite piston material of the present embodiment, includes the following steps：
(1) the piston material raw material of above-mentioned parts by weight is weighed respectively；
(2) silica flour weighed, magnesium powder, titanium valve, yttrium powder, hafnium powder and aluminium powder are distinguished into ball milling, 110 mesh screens are crossed after ball milling,
Then it is mixed, obtains preliminary mixed raw material；
(3) carborundum powder of above-mentioned parts by weight is heated to 1110 DEG C, and carries out the heat preservation of 2h, silicon carbide is made to be filled with oxygen
Divide reaction, and silica is formed on surface layer；
(4) the preliminary mixed raw material that step (2) obtains first is heated to 760 DEG C, degasification, keeps the temperature 4min, then be cooled to 680
DEG C, the molybdenum disulfide and the silicon carbide after surface oxidation treatment that above-mentioned parts by weight are then separately added into melt, quickly
4min is stirred, composite piston material (being poured into a mould after obtaining material) is obtained.
Embodiment 8
A kind of method preparing above-described embodiment composite piston material of the present embodiment, includes the following steps：
(1) the piston material raw material of above-mentioned parts by weight is weighed respectively；
(2) silica flour weighed, magnesium powder, titanium valve, yttrium powder, hafnium powder and aluminium powder are distinguished into ball milling, 140 mesh screens are crossed after ball milling,
Then it is mixed, obtains preliminary mixed raw material；
(3) carborundum powder of above-mentioned parts by weight is heated to 1130 DEG C, and carries out the heat preservation of 3h, silicon carbide is made to be filled with oxygen
Divide reaction, and silica is formed on surface layer；
(4) the preliminary mixed raw material that step (2) obtains first is heated to 800 DEG C, degasification, keeps the temperature 6min, then be cooled to 700
DEG C, the molybdenum disulfide and the silicon carbide after surface oxidation treatment that above-mentioned parts by weight are then separately added into melt, quickly
8min is stirred, composite piston material (being poured into a mould after obtaining material) is obtained.
Embodiment 9
A kind of method preparing above-described embodiment composite piston material of the present embodiment, includes the following steps：
(1) the piston material raw material of above-mentioned parts by weight is weighed respectively；
(2) silica flour weighed, magnesium powder, titanium valve, yttrium powder, hafnium powder and aluminium powder are distinguished into ball milling, 125 mesh screens are crossed after ball milling,
Then it is mixed, obtains preliminary mixed raw material；
(3) carborundum powder of above-mentioned parts by weight is heated to 1120 DEG C, and carries out the heat preservation of 2.5h, make silicon carbide and oxygen
Fully reaction, and form silica on surface layer；
(4) the preliminary mixed raw material that step (2) obtains first is heated to 780 DEG C, degasification, keeps the temperature 5min, then be cooled to 690
DEG C, the molybdenum disulfide and the silicon carbide after surface oxidation treatment that above-mentioned parts by weight are then separately added into melt, quickly
6min is stirred, composite piston material (being poured into a mould after obtaining material) is obtained.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of composite piston material, which is characterized in that include the raw material of following parts by weight：6.5-7.5 parts of silica flour, magnesium powder
0.3-0.5 parts, 0.06-0.10 parts of titanium valve, 0.1-0.2 parts of yttrium powder, 6-7 parts of carborundum powder, 2-3 parts of molybdenum disulfide, hafnium powder 0.2-
0.5 part, 85-100 parts of aluminium powder.
2. composite piston material according to claim 1, which is characterized in that include the raw material of following parts by weight：Silica flour
7.0 parts, 0.4 part of magnesium powder, 0.08 part of titanium valve, 0.15 part of yttrium powder, 6.5 parts of carborundum powder, 2.5 parts of molybdenum disulfide, 0.35 part of hafnium powder,
92 parts of aluminium powder.
3. composite piston material according to claim 1, which is characterized in that include the raw material of following parts by weight：Silica flour
6.8 parts, 0.35 part of magnesium powder, 0.07 part of titanium valve, 0.12 part of yttrium powder, 6.2 parts of carborundum powder, 2.2 parts of molybdenum disulfide, 0.3 part of hafnium powder,
90 parts of aluminium powder.
4. composite piston material according to claim 1, which is characterized in that include the raw material of following parts by weight：Silica flour
7.2 parts, 0.45 part of magnesium powder, 0.09 part of titanium valve, 0.18 part of yttrium powder, 6.8 parts of carborundum powder, 2.8 parts of molybdenum disulfide, hafnium powder 0.45
Part, 96 parts of aluminium powder.
5. composite piston material according to claim 1, which is characterized in that include the raw material of following parts by weight：Silica flour
7.4 parts, 0.48 part of magnesium powder, 0.096 part of titanium valve, 0.19 part of yttrium powder, 6.9 parts of carborundum powder, 2.9 parts of molybdenum disulfide, hafnium powder 0.48
Part, 98 parts of aluminium powder.
6. according to claim 1-5 any one of them composite piston materials, which is characterized in that the carborundum powder is specially
The carborundum powder of 300-310 mesh.
7. according to claim 1-5 any one of them composite piston materials, which is characterized in that the molybdenum disulfide is specially
The molybdenum disulfide of 305-325 mesh.
8. a kind of method preparing the claims 1-7 any one of them composite piston materials, which is characterized in that including such as
Lower step：
(1) the piston material raw material of above-mentioned parts by weight is weighed respectively；
(2) silica flour weighed, magnesium powder, titanium valve, yttrium powder, hafnium powder and aluminium powder are distinguished into ball milling, crosses sieve after ball milling, is then mixed
It closes, obtains preliminary mixed raw material；
(3) carborundum powder of above-mentioned parts by weight is heated to 1110-1130 DEG C, and carries out the heat preservation of 2-3h, make silicon carbide with
Oxygen fully reacts, and forms silica on surface layer；
(4) the preliminary mixed raw material that step (2) obtains first is heated to 760-800 DEG C, degasification, keeps the temperature 4-6min, then be cooled to
680-700 DEG C, the molybdenum disulfide of above-mentioned parts by weight and the carbonization after surface oxidation treatment are then separately added into melt
Silicon stirs 4-8min, obtains composite piston material.
9. the preparation method of composite piston material according to claim 8, which is characterized in that sieve in the step (2)
For 110-140 mesh screens.
10. the preparation method of composite piston material according to claim 9, which is characterized in that the sieve is specially 125
Mesh screen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810264255.7A CN108342623A (en) | 2018-03-28 | 2018-03-28 | A kind of composite piston material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810264255.7A CN108342623A (en) | 2018-03-28 | 2018-03-28 | A kind of composite piston material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468327A (en) * | 2019-08-01 | 2019-11-19 | 石家庄钢铁有限责任公司 | A kind of hollow piston rod steel and its production method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254611A (en) * | 2013-03-29 | 2017-10-17 | 古河电器工业株式会社 | Aluminium alloy conductor, aluminium alloy stranded conductor, coated electric wire, the manufacture method of wire harness and aluminium alloy conductor |
| CN107267812A (en) * | 2017-05-16 | 2017-10-20 | 苏州莱特复合材料有限公司 | A kind of reinforced aluminum matrix composites and its gravity casting method |
-
2018
- 2018-03-28 CN CN201810264255.7A patent/CN108342623A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254611A (en) * | 2013-03-29 | 2017-10-17 | 古河电器工业株式会社 | Aluminium alloy conductor, aluminium alloy stranded conductor, coated electric wire, the manufacture method of wire harness and aluminium alloy conductor |
| CN107267812A (en) * | 2017-05-16 | 2017-10-20 | 苏州莱特复合材料有限公司 | A kind of reinforced aluminum matrix composites and its gravity casting method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468327A (en) * | 2019-08-01 | 2019-11-19 | 石家庄钢铁有限责任公司 | A kind of hollow piston rod steel and its production method |
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Application publication date: 20180731 |