CN106544553A - A kind of method of REINFORCED Al Si alloy piston high-temperature behavior - Google Patents

A kind of method of REINFORCED Al Si alloy piston high-temperature behavior Download PDF

Info

Publication number
CN106544553A
CN106544553A CN201610989691.1A CN201610989691A CN106544553A CN 106544553 A CN106544553 A CN 106544553A CN 201610989691 A CN201610989691 A CN 201610989691A CN 106544553 A CN106544553 A CN 106544553A
Authority
CN
China
Prior art keywords
alloy
reinforced
temperature
piston
temperature behavior
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
CN201610989691.1A
Other languages
Chinese (zh)
Inventor
张达明
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.)
Wuxi Mingsheng Strong Blower Co Ltd
Original Assignee
Wuxi Mingsheng Strong Blower Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Mingsheng Strong Blower Co Ltd filed Critical Wuxi Mingsheng Strong Blower Co Ltd
Priority to CN201610989691.1A priority Critical patent/CN106544553A/en
Publication of CN106544553A publication Critical patent/CN106544553A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C22C21/04—Modified aluminium-silicon alloys
    • 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
    • C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
    • 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
    • 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
    • F05C2201/903—Aluminium alloy, e.g. AlCuMgPb F34,37

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The invention discloses a kind of method of REINFORCED Al Si alloy piston high-temperature behavior, it is characterized in that, add Ni, Fe and Cr in its Al for adopting Si alloy, the alloy contains Si 12 14%, Cu 0.05 0.1%, Mg 0.3 1.2% by weight percentage, Ni 1.5 4%, Fe 0.4 1.4%, Cr 0.5 1.5%, Al surpluses.The present invention is by adding specific elemental constituent in Al Si alloys so that the high-temperature behavior of Al Si alloy pistons is greatly improved.

Description

A kind of method of REINFORCED Al-Si alloy piston high-temperature behaviors
Technical field
The present invention relates to technical field of alloy, more particularly to a kind of method of REINFORCED Al-Si alloy piston high-temperature behaviors.
Background technology
With the increasingly lifting of living standards of the people, effect of the automobile in people's lives also more and more higher.The core of automobile Heart technology is electromotor, in fact the key of automotive performance.Piston-mode motor is the one kind in internal combustion engine, and which relies on piston to exist Move reciprocatingly in cylinder, make gas working medium complete thermodynamic cycle, and the part chemical energy of fuel is converted into into the dynamic of mechanical energy Power apparatus.
Piston is one of important part in electromotor, and its effect is subject to gaseous-pressure, and by piston pin by energy Amount is passed to connecting rod and drives Crankshaft motion.When the engine operates, piston is direct more than 2000 DEG C of high-temperature fuel gas with transient temperature Contact, even more than 400 DEG C of the temperature of top land, and temperature distributing disproportionation is even, while top land holds in working stroke Very big gaseous-pressure, gasoline engine is received to reach 3MPa-5MPa, diesel engine is then up to 9MPa-15MPa, even more high.Additionally, living Plug in the cylinder reciprocating linear velocity up to 6m/s-16m/s.As can be seen here, the work under bad environment of piston, while bearing High pressure, the mechanical load of High Temperature And Velocity and thermic load.The high-temperature behavior enough to its material requirements of piston in the environment.
Al-Si alloys are most widely used in piston, with the rising of operating ambient temperature, Al-Si systems piston material Intensity decline quickly, particularly after temperature is more than 300 DEG C, the downward trend of its intensity is particularly violent.
The content of the invention
It is an object of the invention to propose a kind of method of REINFORCED Al-Si alloy piston high-temperature behaviors, Al-Si can be lifted The high-temperature behavior of piston.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of method of REINFORCED Al-Si alloy piston high-temperature behaviors, it is characterised in that in its Al-Si for adopting alloy Addition Ni, Fe and Cr, the alloy contain Si 12-14%, Cu 0.05-0.1%, Mg 0.3-1.2% by weight percentage, Ni 1.5-4%, Fe 0.4-1.4%, Cr 0.5-1.5%, Al surpluses.
Tensile strength UTS (350 DEG C) of the above-mentioned alloy at 350 DEG C is in 215MPa or so, the Al-Si with other Ni contents Alloy compares, and the content of the present invention can obtain more δ-Al3CuNi phases.δ-Al3CuNi phases are in often ribbon shape Looks, which forms block and γ-Al compared to ε-Al3Ni7Cu4Ni, with higher volume utilization, has in three kinds of nickel-rich phases There is highest elevated temperature strength contribution rate.
In the alloy of the present invention, by adding Cr and Fe, α-Al (Fe, Cr) Si phases are formed, assisted and strengthened effect is played, With the nickel-rich phase δ-Al as main hardening constituent3CuNi phases combine.Simultaneously as δ-Al3CuNi phase solid solutions Cr, Si and Fe Pattern changes so that heat-resisting intermetallic compound net has encased α-Al crystal grain, so as to form the net of semi-enclosed closing Shape eutectic cell, can prevent the sliding of crystal boundary well in high temperature, lift the high-temperature behavior of piston.
A small amount of Mg is individually added in Al-Si alloys and forms Mg2Si hardening constituents.During quenching, Mg2Si is incorporated in αsolidsolution, Form dispersion phase precipitation after Ageing Treatment again so that the crystalline temperature battle array of αsolidsolution is distorted, and so as to reinforced alloys, significantly carries High intensity, but alloy elongation percentage can decline.
Cu can improve the hardness and mechanical behavior under high temperature of aluminium alloy, and its solid solution effect can also improve the anti-tired of aluminium alloy Labor intensity.But as the chemical potential of Cu is higher than Al, intercrystalline corrosion and stress corrosion are also easy to produce, reduce the corrosion resistance of aluminium alloy.
In the present invention, while adding Cu and Mg, W hardening constituent (Al are formed in aluminium alloyxMg5Si4Cu4), compare Mg2Si And CuAl2Phase, the reinforcing effect of W phases preferably, can significantly promote the raising of alloy mechanical property.But Cu and Mg is in Al-Si alloys In total amount it is very few, reinforcing effect is just little, but total amount is too high, causes the plasticity of alloy to be deteriorated again.Therefore the present invention selects Cu 0.5-2.5%, Mg 0.3-1.2%.
Used as optimal technical scheme, the alloy of the present invention is rotten preferably through P-Sr composite inoculatings technique.
The present invention is by adding specific elemental constituent in Al-Si alloys so that the high-temperature behavior of Al-Si alloy pistons It is greatly improved.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of method of REINFORCED Al-Si alloy piston high-temperature behaviors, it is characterised in that in its Al-Si for adopting alloy Addition Ni, Fe and Cr, the alloy contain Si 12%, Cu 0.05%, Mg0.3%, Ni 1.5%, Fe by weight percentage 0.4%, Cr 0.5%, Al surplus.
1 said method of embodiment, by adding special component in the alloy so that high temperature (350 DEG C) Tensile strength is big Width is improved.
Embodiment 2
A kind of method of REINFORCED Al-Si alloy piston high-temperature behaviors, it is characterised in that in its Al-Si for adopting alloy Addition Ni, Fe and Cr, the alloy contain Si 13%, Cu 0.08%, Mg0.8%, Ni 2.6%, Fe by weight percentage 0.9%, Cr 0.9%, Al surplus.
Said method, by adding special component in the alloy so that high temperature (350 DEG C) Tensile strength is greatly improved.
Embodiment 3
A kind of method of REINFORCED Al-Si alloy piston high-temperature behaviors, it is characterised in that in its Al-Si for adopting alloy Addition Ni, Fe and Cr, the alloy contain Si 14%, Cu 0.1%, Mg 1.2%, Ni 4%, Fe by weight percentage 1.4%, Cr 1.5%, Al surplus.
Said method, by adding special component in the alloy so that high temperature (350 DEG C) Tensile strength is greatly improved.

Claims (2)

1. a kind of method of REINFORCED Al-Si alloy piston high-temperature behaviors, it is characterised in that add in its Al-Si for adopting alloy Plus Ni, Fe and Cr, the alloy is by weight percentage containing Si 12-14%, Cu 0.05-0.1%, Mg 0.3-1.2%, Ni 1.5-4%, Fe 0.4-1.4%, Cr 0.5-1.5%, Al surpluses.
2. the method for REINFORCED Al-Si alloy piston high-temperature behaviors according to claim 1, it is characterised in that the alloy Through P-Sr composite inoculatings.
CN201610989691.1A 2016-11-10 2016-11-10 A kind of method of REINFORCED Al Si alloy piston high-temperature behavior Pending CN106544553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610989691.1A CN106544553A (en) 2016-11-10 2016-11-10 A kind of method of REINFORCED Al Si alloy piston high-temperature behavior

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610989691.1A CN106544553A (en) 2016-11-10 2016-11-10 A kind of method of REINFORCED Al Si alloy piston high-temperature behavior

Publications (1)

Publication Number Publication Date
CN106544553A true CN106544553A (en) 2017-03-29

Family

ID=58394579

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610989691.1A Pending CN106544553A (en) 2016-11-10 2016-11-10 A kind of method of REINFORCED Al Si alloy piston high-temperature behavior

Country Status (1)

Country Link
CN (1) CN106544553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112375942A (en) * 2020-10-26 2021-02-19 宁波德业粉末冶金有限公司 Combined type intelligence bumper shock absorber piston

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1450185A (en) * 2003-05-07 2003-10-22 东华大学 Hypereutectoid alpax with eutectic structure and technological method thereof
US20040170523A1 (en) * 2003-01-23 2004-09-02 Hubert Koch Casting alloy
CN1609248A (en) * 2003-10-17 2005-04-27 株式会社丰田中央研究所 Aluminum alloys for casting, aluminum alloy castings and manufacturing method thereof
CN102560206A (en) * 2012-02-27 2012-07-11 安徽省恒泰动力科技有限公司 Rare-earth aluminum alloy piston material and preparation method thereof
CN103328668A (en) * 2011-01-27 2013-09-25 日本轻金属株式会社 High electric resistance aluminum alloy
US20160138137A1 (en) * 2014-11-19 2016-05-19 Hyundai Motor Company Aluminum alloy for engine piston of automobile and method for producing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040170523A1 (en) * 2003-01-23 2004-09-02 Hubert Koch Casting alloy
CN1450185A (en) * 2003-05-07 2003-10-22 东华大学 Hypereutectoid alpax with eutectic structure and technological method thereof
CN1609248A (en) * 2003-10-17 2005-04-27 株式会社丰田中央研究所 Aluminum alloys for casting, aluminum alloy castings and manufacturing method thereof
CN103328668A (en) * 2011-01-27 2013-09-25 日本轻金属株式会社 High electric resistance aluminum alloy
CN102560206A (en) * 2012-02-27 2012-07-11 安徽省恒泰动力科技有限公司 Rare-earth aluminum alloy piston material and preparation method thereof
US20160138137A1 (en) * 2014-11-19 2016-05-19 Hyundai Motor Company Aluminum alloy for engine piston of automobile and method for producing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李云国: "《Al-Si-Cu-Ni-Mg系活塞合金高温强化相的研究》", 《中国优秀硕士学位论文全文数据库（工程科技1辑）》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112375942A (en) * 2020-10-26 2021-02-19 宁波德业粉末冶金有限公司 Combined type intelligence bumper shock absorber piston

Similar Documents

Publication Publication Date Title
CN108251760B (en) The martensitic stain less steel and its manufacturing method of the mutually compound precipitation strength of nanometer
CN104093867B (en) High performance aisimgcu casting alloy
Jeong High temperature mechanical properties of Al–Si–Mg–(Cu) alloys for automotive cylinder heads
CN103397276A (en) High-strength nickel-saving air valve steel and preparation method thereof
Ceschini et al. Effect of Fe content and microstructural features on the tensile and fatigue properties of the Al–Si10–Cu2 alloy
CN104561688A (en) Heat-resistant cast aluminum alloy and gravity casting method thereof
CN104561689A (en) Heat-resistant cast aluminum alloy and extrusion casting method thereof
CN103451484A (en) Casting aluminium-silicon alloy for cylinder body of automobile engine
CN103146973B (en) High-temperature-resistant rare earth magnesium alloy
CN106795591A (en) Application for producing method, engine components and the aluminium alloy of engine components
CN107858616B (en) A kind of high-strength and high-plasticity Mg-Gd-Y-Zn-Nd-Zr cast magnesium alloy and preparation method thereof
CN105483451A (en) Nano ceramic particle reinforcing aluminum alloy for piston and manufacturing method of nano ceramic particle reinforcing aluminum alloy
KR101565025B1 (en) Aluminum alloy for low density, high heat resistance
CN104404321A (en) Super-strength aluminum alloy drill rod pipe body for super-deep well and manufacturing method for super-strength aluminum alloy drill rod pipe body
CN104152750A (en) Nickel-saving type gas valve alloy and preparation method thereof
CN102676961B (en) Heat treatment method of copper-rich cast hypoeutectic aluminum-silicon alloy
CN105088012B (en) Titanium alloy piston connection rod set and process on application with internal combustion engines car
CN109022963A (en) A method of improving 7000 series high-strength aluminum alloy oil drilling tube material heat resistances
CN103451485A (en) Casting aluminium-silicon alloy for cylinder cover of automobile engine
CN103757510B (en) A kind of multicomponent heat-resistant magnesium alloy
CN106544553A (en) A kind of method of REINFORCED Al Si alloy piston high-temperature behavior
CN103834885B (en) A kind of heat treating method improving aluminum alloy plate materials plasticity
CN102605214A (en) Novel nickel-base alloy for vent valve of combustion engine
CN102876934A (en) Novel aluminum alloy material
CN101985706A (en) Aluminum alloy material for hot precision forging connection rod and preparation method thereof

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
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170329