CN103540879B - A kind of Pr6O11The processing method of the Al-Si-Zn line aluminium alloy strengthening - Google Patents

A kind of Pr6O11The processing method of the Al-Si-Zn line aluminium alloy strengthening Download PDF

Info

Publication number
CN103540879B
CN103540879B CN201310443154.3A CN201310443154A CN103540879B CN 103540879 B CN103540879 B CN 103540879B CN 201310443154 A CN201310443154 A CN 201310443154A CN 103540879 B CN103540879 B CN 103540879B
Authority
CN
China
Prior art keywords
alloy
aluminium alloy
line aluminium
treatment
processing
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.)
Active
Application number
CN201310443154.3A
Other languages
Chinese (zh)
Other versions
CN103540879A (en
Inventor
李伟
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.)
Aerospace nuclear material (Tianjin) Technology Co., Ltd.
Original Assignee
李露青
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 李露青 filed Critical 李露青
Priority to CN201310443154.3A priority Critical patent/CN103540879B/en
Publication of CN103540879A publication Critical patent/CN103540879A/en
Application granted granted Critical
Publication of CN103540879B publication Critical patent/CN103540879B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention provides a kind of processing method of high strength Al-Si-Zn line aluminium alloy, formed by alloy preparation process, rotten treatment step and final heat treatment step. By rare earth oxide Pr6O11To the metamorphism of Al-Si-Zn line aluminium alloy, in conjunction with Technology for Heating Processing, improve the tensile property of Al-Si-Zn line aluminium alloy, significantly improve strength of alloy and percentage elongation.

Description

A kind of Pr6O11The processing method of the Al-Si-Zn line aluminium alloy strengthening
Technical field
The present invention relates to Al-Si-Zn line aluminium alloy field, specifically, relate to a kind of processing method of high strength Al-Si-Zn line aluminium alloy.
Background technology
It is low that Al-Si-Zn is associated gold silicon content, has good castability and processability, ambient stable phase Al2Zn can be solidly soluted in alloy substrate through heat treatment, is therefore a kind of aluminium alloy can heat treatment strengthening. Al-Si-Zn alloy after rotten and heat treatment can obtain good mechanical property, is therefore more and more used in industrial machinery and equipment. And the common complex structure of industrial machinery and equipment, work under bad environment, special working environment is had higher requirement to the performance of material, have good casting and processing characteristics, in the temperature range of room temperature and 250 DEG C, to there be high tensile strength and percentage elongation, preferably thermal conductivity. In order to meet these instructions for uses, need to improve alloy production technique, optimized alloy becomes to assign to be optimized processing.
There are some researches show, in alusil alloy, rare earth can not only be served as alterant, and can play the effect that purifies aluminium alloy. Rare-Earth Element Chemistry character is active, can with aluminium alloy in O2、H2, S element etc. reacts, thereby reduce air content and the sulfur content in aluminium alloy, play the effect that purifies aluminium alloy. Under certain process conditions, aluminum alloy melt is carried out to purified treatment with rare earth, its clean-up effect even exceedes conventional C2Cl6And innocuous refining flux. Use rare earth to aluminum alloy melt degasification, operating process is simply steady, there will not be aluminium alloy boiling
The mechanical property of as cast condition Al-Si-Zn alloy is poor, therefore needs to change by certain means the microstructure morphology of alloy, has positive effect to putting forward heavy alloyed mechanical property. This alloy is the alloy can heat treatment strengthening, by heat-treating the Al making in alloy2Zn is solidly soluted in matrix mutually, thereby plays the effect of solution strengthening. There is many research for going bad of Al-Si eutectic structure at present, the comparatively maturation of the metamorphism research of Sr to eutectic Si, be applied at present all certain problems of existence more or less of alterant in actual production, therefore, be still necessary the alterant that continual exploitation is new. Rare earth oxide, as the more resource of a kind of China reserves, ought to more be applied, and existing research shows, rare earth element has metamorphism to Al-Si-Zn alloy.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of processing method of high strength Al-Si-Zn line aluminium alloy, use the method can obviously improve the tensile property of Al-Si-Zn line aluminium alloy.
The technical solution used in the present invention is: a kind of processing method of high strength Al-Si-Zn line aluminium alloy, is characterized in that: the component that described Al-Si-Zn line aluminium alloy contains following weight percentage: 0.1~1.0% Pr6O115.0~8.0% Si, 2.0~5.0% Zn, 0.10~0.30% Fe, 0.01~0.1% Ni, 0.001~0.005% Cr, 0.001~0.005% Mn, 0.001~0.005% Ti, and inevitable impurity, surplus is aluminium, and described processing method is made up of alloy preparation process, rotten treatment step and final heat treatment step; Be specially alloy preparation process: first, by add pure Al material and pure Zn material mixed preparing in Al-Si alloy, fusing pours into alloy plate; Rotten treatment step: the alloy plate preparing is put into resistance furnace and melt, add alterant and stir, be incubated, be poured in metal mold after slagging-off, described metal mold is carried out preheating before cast; Final heat treatment step: metal mold is being carried out to solution treatment, water-cooled after insulation, then carry out Ageing Treatment, after insulation, air cooling obtains product.
In described alloy preparation process, be that the pure Zn that 99.9% pure Al material and zinc content are 99.9% expects mixed preparing by add aluminium content in Al-Si alloy, pour into alloy plate 1000~1200 DEG C of fusings.
In described rotten treatment step, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 800~1000 DEG C, adds alterant and stir after fusing, and described alterant is 1: 3~5 Al powder and Pr by mass ratio6O11Powder evenly mixes, and after adding, 800~900 DEG C of insulations, temperature retention time is 30~40min, after slagging-off, is poured in metal mold at 800~900 DEG C, and described metal mold is preheated to 100~150 DEG C before cast.
In described final heat treatment step, described metal mold, at 600 DEG C, is carried out to solution treatment, insulation 8~10h, water-cooled, then carry out Ageing Treatment at 200~300 DEG C, and insulation 6~8h, last air cooling obtains product.
The room temperature tensile strength of the Al-Si-Zn line aluminium alloy product obtaining after final heat treatment is 350~380MPa, and percentage elongation is 11~12%.
Advantage of the present invention is: by rare earth oxide Pr6O11To the metamorphism of Al-Si-Zn line aluminium alloy, in conjunction with final heat treatment, improve the tensile property of Al-Si-Zn line aluminium alloy, significantly improve strength of alloy and percentage elongation, there is the features such as cost is low, easy and simple to handle, with short production cycle. The Al-Si-Zn line aluminium alloy of output of the present invention, as product, can be applied to the industry manufacture field such as aviation, automobile.
Detailed description of the invention
Below in conjunction with embodiment and comparative example, the present invention is described in more detail.
Embodiment 1:
The component that Al-Si-Zn line aluminium alloy contains following weight percentage: 0.2% Pr6O11, 6.0% Si, 3.0% Zn, 0.10% Fe, 0.05% Ni, 0.005% Cr, 0.005% Mn, 0.001% Ti, and inevitable impurity, surplus is aluminium. First, be that the pure Zn that 99.9% pure Al material and zinc content are 99.9% expects mixed preparing by add aluminium content in Al-Si alloy, pour into alloy plate 1000 DEG C of fusings. Then, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 800 DEG C, adds alterant and stir Al powder and Pr that described alterant is 1: 3 by mass ratio after fusing6O11Powder evenly mixes, and after adding, 800 DEG C of insulations, temperature retention time is 30min, after slagging-off, is poured in metal mold at 800 DEG C, and metal mold is preheated to 100 DEG C before cast. Then, metal mold, at 600 DEG C, is carried out to solution treatment, insulation 8h, water-cooled, then carry out Ageing Treatment at 200 DEG C, and insulation 6h, last air cooling obtains product. The room temperature tensile strength of the Al-Si-Zn line aluminium alloy product obtaining is 350MPa, and percentage elongation is 11%.
Comparative example 1:
By Al-Si-Zn line aluminium alloy identical constituent, pour into after alloy plate in fusing, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 800 DEG C, after fusing, add the alterant that contains scandium bearing master alloy and stir, insulation, cast after slagging-off. Then, carry out solution treatment and Ageing Treatment, last air cooling obtains product. The room temperature tensile strength of the alloy product obtaining is only 200~250MPa, and percentage elongation is only 8~10%.
Comparative example 2:
By Al-Si-Zn line aluminium alloy identical constituent, pour into after alloy plate in fusing, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 800 DEG C, adds alterant and stirs, insulation after fusing, cast after slagging-off, and no longer carry out final heat treatment. The room temperature tensile strength of the alloy product obtaining has only reached 100~150MPa, and percentage elongation is only 5~8%.
Can be found out by embodiment 1 and comparative example 1 and 2, by utilizing according to the processing method of a kind of high strength Al-Si-Zn line aluminium alloy of the embodiment of the present invention, select specific rare earth oxide Pr6O11And strictly control its content, in conjunction with Technology for Heating Processing step and parameter, the tensile property of Al-Si-Zn line aluminium alloy be can obviously improve, and tensile strength and the percentage elongation of alloy significantly improved.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.

Claims (1)

1. a processing method for high strength Al-Si-Zn line aluminium alloy, is characterized in that: described Al-Si-Zn line aluminium alloy contains following heavyThe component of amount percentage: 0.1~1.0% Pr6O11, 5.0~8.0% Si, 2.0~5.0% Zn, 0.10~0.30% Fe,0.01~0.1% Ni, 0.001~0.005% Cr, 0.001~0.005% Mn, 0.001~0.005% Ti, and can notThe impurity of avoiding, surplus is aluminium, described processing method is by alloy preparation process, rotten treatment step and final heat treatment stepInstitute forms; Be specially,
In described alloy preparation process, be that 99.9% pure Al material and zinc content are 99.9% by add aluminium content in Al-Si alloyPure Zn material mixed preparing, pour into alloy plate 1000~1200 DEG C of fusings;
In described rotten treatment step, the alloy plate preparing is put into resistance furnace and melt, temperature maintains 800~1000 DEG C, moltenAfter change, add alterant and stir, described alterant is 1: 3~5 Al powder and Pr by mass ratio6O11Powder evenly mixes,After adding, 800~900 DEG C of insulations, temperature retention time is 30~40min, is poured in metal mold institute after slagging-off at 800~900 DEG CThe metal mold of stating is preheated to 100~150 DEG C before cast;
In described final heat treatment step, described metal mold, at 600 DEG C, is carried out to solution treatment, insulation 8~10h, water-cooled, then200~300 DEG C are carried out Ageing Treatment, insulation 6~8h, and last air cooling obtains product;
The room temperature tensile strength of the Al-Si-Zn line aluminium alloy product obtaining after final heat treatment is 350~380MPa, and percentage elongation is11~12%。
CN201310443154.3A 2013-09-24 2013-09-24 A kind of Pr6O11The processing method of the Al-Si-Zn line aluminium alloy strengthening Active CN103540879B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310443154.3A CN103540879B (en) 2013-09-24 2013-09-24 A kind of Pr6O11The processing method of the Al-Si-Zn line aluminium alloy strengthening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310443154.3A CN103540879B (en) 2013-09-24 2013-09-24 A kind of Pr6O11The processing method of the Al-Si-Zn line aluminium alloy strengthening

Publications (2)

Publication Number Publication Date
CN103540879A CN103540879A (en) 2014-01-29
CN103540879B true CN103540879B (en) 2016-05-18

Family

ID=49964720

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310443154.3A Active CN103540879B (en) 2013-09-24 2013-09-24 A kind of Pr6O11The processing method of the Al-Si-Zn line aluminium alloy strengthening

Country Status (1)

Country Link
CN (1) CN103540879B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107675036A (en) * 2017-08-31 2018-02-09 宁波市佳利来机械制造有限公司 A kind of automobile engine case
CN109234578A (en) * 2018-09-25 2019-01-18 广东美的制冷设备有限公司 Aluminium alloy, tubing, heat exchanger, air-conditioning and refrigeration equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1936050A (en) * 2006-10-18 2007-03-28 东华大学 Fine grained aluminium alloy and its preparing method
CN101736274A (en) * 2009-12-28 2010-06-16 无锡麟龙铝业有限公司 Aluminum-silicon-zinc-rare earth-ferrum-manganese-chromium-containing hot dip coating alloy and method for preparing same
CN101935789A (en) * 2009-11-19 2011-01-05 无锡麟龙铝业有限公司 Hot-dipped cast aluminum alloy containing Al-Zn-Si-Mg-RE-Ti-Ni and manufacturing method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4351609B2 (en) * 2004-11-12 2009-10-28 本田技研工業株式会社 Aluminum alloy, heat-resistant and high-strength aluminum alloy part, and manufacturing method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1936050A (en) * 2006-10-18 2007-03-28 东华大学 Fine grained aluminium alloy and its preparing method
CN101935789A (en) * 2009-11-19 2011-01-05 无锡麟龙铝业有限公司 Hot-dipped cast aluminum alloy containing Al-Zn-Si-Mg-RE-Ti-Ni and manufacturing method thereof
CN101736274A (en) * 2009-12-28 2010-06-16 无锡麟龙铝业有限公司 Aluminum-silicon-zinc-rare earth-ferrum-manganese-chromium-containing hot dip coating alloy and method for preparing same

Also Published As

Publication number Publication date
CN103540879A (en) 2014-01-29

Similar Documents

Publication Publication Date Title
CN103952605B (en) A kind of preparation method of middle strength aluminium alloy monofilament
CN107675046B (en) A kind of high-strength light magnalium copper high-entropy alloy and preparation method thereof
CN101775530B (en) Hypereutectic al-si alloy piston material
CN105088033A (en) Aluminium alloy and preparation method thereof
CN109182854B (en) 1GPa high-strength aluminum-based light medium-entropy alloy and preparation method thereof
CN101597709A (en) A kind of environmentally friendly cast aluminium alloy and manufacture method thereof
CN103540878B (en) A kind of CeO2The processing method of the Al-Si-Zn line aluminium alloy strengthened
CN103243236B (en) High-toughness wear-resistant zinc alloy containing fine crystalline grains and preparation process for same
WO2015135253A1 (en) Al-si alloy and manufacturing method thereof
CN104388769A (en) High-purity aluminum-silicon (Al-Si) intermediate alloy and production method thereof
CN103266241B (en) A kind of Rare earth aluminum alloy conductor material and production method thereof
CN104233032A (en) Mg-Cd intensified magnesium-based alloy and preparation method thereof
CN102554192A (en) Manufacturing method of highly-conductive and heat-resisting electrode cross beam component
CN103540879B (en) A kind of Pr6O11The processing method of the Al-Si-Zn line aluminium alloy strengthening
CN102676856A (en) Metamorphic process of hypo eutectic casting aluminum-silicon alloy
CN102839291A (en) Refining method for primary silicon in hypereutectic aluminum silicon alloy
CN103540813B (en) A kind of Yb2O3The processing method of the Al-Si-Zn line aluminium alloy strengthened
CN102690964B (en) Alterant for hypereutectic aluminum-silicon alloy primary silicon and preparation method thereof
CN103526069B (en) Electric-conductivity heat-conductivity high copper selenium complex alloy material
CN106244848B (en) The copper-based glass mold material of microalloying non-ferrous metal and its manufacturing method
CN101429600A (en) Production technology for tellurium copper bar, plate, stick or pipe
CN105463259A (en) Rust-proof metal material of car oil tank
CN104561706A (en) High-strength antifriction aluminum alloy
CN104561717A (en) High-performance heat-resistant cast magnesium alloy and preparation method thereof
CN109338178A (en) It is a kind of to use SrCO3Rotten hypereutectic al-si composite material and Modification Manners

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20160415

Address after: 315137 Zhejiang city of Ningbo province Yinzhou District Yunlong Town Li Yun Road No. 10

Applicant after: Li Luqing

Address before: Yinzhou District Heng Jie Heng Jie Zhen Road 315181 No. 50 Zhejiang city of Ningbo Province

Applicant before: Li Wei

C41 Transfer of patent application or patent right or utility model
GR01 Patent grant
C14 Grant of patent or utility model
CB03 Change of inventor or designer information

Inventor after: Wei Changchuan

Inventor before: Li Wei

TR01 Transfer of patent right

Effective date of registration: 20160706

Address after: 300399, three building, No. 18, No. 402, Dongli Development Zone, Tianjin

Patentee after: Aerospace nuclear material (Tianjin) Technology Co., Ltd.

Address before: 315137 Zhejiang city of Ningbo province Yinzhou District Yunlong Town Li Yun Road No. 10

Patentee before: Li Luqing

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data