CN105714221A - Heat treatment process of ZL105 aluminum alloy - Google Patents
Heat treatment process of ZL105 aluminum alloy Download PDFInfo
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- CN105714221A CN105714221A CN201610143135.2A CN201610143135A CN105714221A CN 105714221 A CN105714221 A CN 105714221A CN 201610143135 A CN201610143135 A CN 201610143135A CN 105714221 A CN105714221 A CN 105714221A
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- zl105a
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
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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
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Abstract
The invention relates to a heat treatment process of a ZL105A aluminum alloy, and belongs to the technical field of metal heat treatment. The method comprises the following steps: (1) carrying out solution treatment on the ZL105A aluminum alloy, and preserving the heat for 8-10 hours, wherein the temperature of the solution treatment is 520-530 DEG C; (2) carrying out quenching treatment on the ZL105A aluminum alloy, wherein the quenching water temperature is 60-80 DEG C, the quenching transfer time is shorter than 12 seconds and the parking time from the quenching to ageing treatment is less than 1.5 hours; (3) carrying out the ageing treatment on the ZL105A aluminum alloy, and starting a pulse power supply to carry out electric pulse assisted ageing treatment on the ZL105A aluminum alloy when the furnace temperature rises to 155-165 DEG C, wherein the ageing treatment time is 2-3 hours, the pulse power supply is a positive and negative double-pulse power supply, the pulse voltage is +/-28V, the pulse current is 16-18A, the pulse frequency is 1000-1100HZ, the ratio of the positive pulse to the negative pulse is 3: 2, and the duty ratio is 85%; and (4) taking out the ZL105A aluminum alloy and air cooling the ZL105A aluminum alloy to the room temperature. The process provided by the invention can be used for the heat treatment of the ZL105A aluminum alloy.
Description
Technical field
The present invention relates to the Technology for Heating Processing of a kind of ZL105A aluminium alloy, belong to technical field of metal heat treatment.
Background technology
ZL105A aluminium alloy belongs to Al-Si line aluminium alloy, is one of aluminium alloy that purposes is the widest.ZL105A alloy has good casting character and machinability, and higher air-tightness and certain weldability, there is after thermally treated strengthening higher-strength, relatively low thermel expansion coefficient and certain mechanical behavior under high temperature, therefore wide in the application in the fields such as military project, Aero-Space, boats and ships, automobile and Making mold, it is used for casting premium casting, such as the crankcase of aircraft, valve housing, impeller, cooling jacket etc..The normative heat treatment technological parameter of ZL105A aluminium alloy is as follows: the solution treatment of 525 ± 5 DEG C of insulation 4 ~ 12h, the water temperature quenching of 60 ~ 80 DEG C, the Ageing Treatment of 160 ± 5 DEG C of insulation 3 ~ 5h, air cooling of then coming out of the stove.Its tensile strength of ZL105A alloy and hardness after Overheating Treatment can significantly improve.But, the time of this heat treatment work technique is longer, causes power consumption more, and affects the lifting of production efficiency.
Summary of the invention
It is an object of the invention to provide the Technology for Heating Processing of a kind of ZL105A aluminium alloy, the intensity that can either improve this alloy can make it have again good plasticity.
The present invention is to solve the problem that energy consumption is big and production efficiency is low that ZL105A aluminium alloy common heat treatment causes owing to temperature retention time is longer, it is provided that the Technology for Heating Processing of a kind of ZL105A aluminium alloy.
To achieve these goals, the Technology for Heating Processing of a kind of ZL105A aluminium alloy of the present invention, it comprises the following steps:
(1) being put into by ZL105A aluminium alloy and carry out solution treatment in heat-treatment furnace, solid solution temperature is 525 ± 5 DEG C, is incubated 8 ~ 10h；
(2) the ZL105A aluminium alloy after solution treatment being carried out Quenching Treatment, hardening heat is 60 DEG C ~ 80 DEG C, and hardening media is water, and quenching shift time, less than 12s, is quenched to the storage period of Ageing Treatment less than 1.5h；
(3) two ends of the ZL105A aluminium alloy after quenching are connected with the outfan of the pulse power by wire, and put in aging furnace, when aging furnace furnace temperature rises to 160 ± 5 DEG C, unbalanced pulse power supply, ZL105A aluminium alloy is carried out electric pulse auxiliary Ageing Treatment, pulse duration time is equal with Ageing Treatment temperature retention time, is 2 ~ 3h；
(4) the ZL105A aluminium alloy after electric pulse being assisted Ageing Treatment takes out from aging furnace, and air cooling is to room temperature；
The wherein said pulse power is positive and negative dual-pulse power supply, and pulse voltage is ± 28V, and pulse current is 16A ~ 18A, and pulse frequency is 1000 ~ 1100Hz, and positive negative pulse stuffing is than for 3:2, dutycycle 85%.
The invention have the advantages that compared with normative heat treatment technique, the present invention is under electric pulse assosting effect, the heat treatment time of ZL105A aluminium alloy is while shortening more than 15%, it is ensured that obtain approximately equalised mechanical property, contributes to reducing energy consumption and improving productivity ratio.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
A kind of Technology for Heating Processing of ZL105A aluminium alloy, it comprises the following steps:
(1) being put into by ZL105A aluminium alloy and carry out solution treatment in heat-treatment furnace, solid solution temperature is 525 ± 5 DEG C, is incubated 9h；
(2) the ZL105A aluminium alloy after solution treatment being carried out Quenching Treatment, hardening heat is 70 DEG C ± 5 DEG C, and hardening media is water, and quenching shift time is 10s, and the storage period being quenched to Ageing Treatment is 1h；
(3) two ends of the ZL105A aluminium alloy after quenching are connected with the outfan of the pulse power by wire, and put in aging furnace, when aging furnace furnace temperature rises to 160 ± 5 DEG C, unbalanced pulse power supply, ZL105A aluminium alloy is carried out electric pulse auxiliary Ageing Treatment, pulse duration time is equal with Ageing Treatment temperature retention time, for 2h；
(4) the ZL105A aluminium alloy after electric pulse being assisted Ageing Treatment takes out from aging furnace, and air cooling is to room temperature；
The wherein said pulse power is positive and negative dual-pulse power supply, and pulse voltage is ± 28V, and pulse current is 16.5A, and pulse frequency is 1100Hz, and positive negative pulse stuffing is than for 3:2, dutycycle 85%；
The constituent content of described ZL105A aluminium alloy is Si5.1%, Cu1.2%, Mg0.5%, Zn≤0.1%, Mn≤0.1%, Sn≤0.01%, Pb≤0.05%, surplus is Al；
The tensile sample of described ZL105A aluminium alloy is processed according to GB/T228.1-2010, and hardness specimens is of a size of diameter 300mm, high 300mm；
The tensile strength that described ZL105A aluminium alloy records is 298MPa, and hardness is 86HBS.
Embodiment 2
The present embodiment and embodiment 1 are different in that, in step (3), pulse duration time is equal with Ageing Treatment temperature retention time, for 2.5h.Other steps are identical with embodiment 1 with parameter.
The tensile strength that described ZL105A aluminium alloy records is 302MPa, and hardness is 87HBS.
Embodiment 3
The present embodiment is different in that with one of embodiment 1 or 2, and in step (3), pulse duration time is equal with Ageing Treatment temperature retention time, for 3h.Other steps are identical with embodiment 1 or 2 with parameter.
The tensile strength that described ZL105A aluminium alloy records is 309MPa, and hardness is 85HBS.
Embodiment 4
The present embodiment is comparative example, and the normative heat treatment technique of ZL105A aluminium alloy is realized by following steps:
(1) being put into by ZL105A aluminium alloy and carry out solution treatment in heat-treatment furnace, solid solution temperature is 525 ± 5 DEG C, is incubated 9h.
(2) the ZL105A aluminium alloy after solution treatment being carried out Quenching Treatment, hardening heat is 70 DEG C ± 5 DEG C, and hardening media is water, and quenching shift time is 10s, and the storage period being quenched to Ageing Treatment is 1h.
(3) the ZL105A aluminium alloy after quenching is put in aging furnace, carry out the Ageing Treatment of 160 ± 5 DEG C of insulation 4h.
(4) being taken out from aging furnace by the ZL105A aluminium alloy after Ageing Treatment, air cooling is to room temperature.
The constituent content of described ZL105A aluminium alloy is Si5.1%, Cu1.2%, Mg0.5%, Zn≤0.1%, Mn≤0.1%, Sn≤0.01%, Pb≤0.05%, surplus is Al；
The tensile sample of described ZL105A aluminium alloy is processed according to GB/T228.1-2010, and hardness specimens is of a size of diameter 300mm, high 300mm；
The tensile strength that described ZL105A aluminium alloy records is 305MPa, and hardness is 86HBS.
By embodiment 1 to 4 it can be seen that the present invention is compared with the normative heat treatment technique of ZL105A aluminium alloy, when shortening heat treatment time more than 15% of ZL105A aluminium alloy, it is possible to obtain approximately equalised tensile strength and hardness, it is shown that the advantage of the present invention.
Claims (2)
1. the Technology for Heating Processing of a ZL105A aluminium alloy, it is characterised in that it comprises the following steps:
(1) being put into by ZL105A aluminium alloy and carry out solution treatment in heat-treatment furnace, solid solution temperature is 525 ± 5 DEG C, is incubated 8 ~ 10h；
(2) the ZL105A aluminium alloy after solution treatment being carried out Quenching Treatment, hardening heat is 60 DEG C ~ 80 DEG C, and hardening media is water, and quenching shift time, less than 12s, is quenched to the storage period of Ageing Treatment less than 1.5h；
(3) two ends of the ZL105A aluminium alloy after quenching are connected with the outfan of the pulse power by wire, and put in aging furnace, when aging furnace furnace temperature rises to 160 ± 5 DEG C, unbalanced pulse power supply, ZL105A aluminium alloy is carried out electric pulse auxiliary Ageing Treatment, pulse duration time is equal with Ageing Treatment temperature retention time, is 2 ~ 3h；
(4) the ZL105A aluminium alloy after electric pulse being assisted Ageing Treatment takes out from aging furnace, and air cooling is to room temperature.
2. the Technology for Heating Processing of a kind of ZL105A aluminium alloy according to claim 1, it is characterised in that the described pulse power is positive and negative dual-pulse power supply, pulse voltage is ± 28V, and pulse current is 16A ~ 18A, and pulse frequency is 1000 ~ 1100Hz, positive negative pulse stuffing is than for 3:2, dutycycle 85%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610143135.2A CN105714221A (en) | 2016-03-14 | 2016-03-14 | Heat treatment process of ZL105 aluminum alloy |
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| CN201610143135.2A CN105714221A (en) | 2016-03-14 | 2016-03-14 | Heat treatment process of ZL105 aluminum alloy |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108690943A (en) * | 2018-05-29 | 2018-10-23 | 西安理工大学 | A method of improving Cu-Ni-Mn-Fe alloy mechanical properties |
| CN108715984A (en) * | 2018-05-29 | 2018-10-30 | 西安理工大学 | A kind of Cu-Ni-Mn-Fe Alloy At Room Temperatures quick heat treatment method |
| CN113584412A (en) * | 2021-06-01 | 2021-11-02 | 青岛科麟航空科技有限公司 | Heat treatment method of ZL105A casting and ZL105A casting |
| CN114058917A (en) * | 2021-10-29 | 2022-02-18 | 安徽省恒泰动力科技有限公司 | Aluminum alloy applied to automobile engine cylinder and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614673A (en) * | 2013-04-11 | 2014-03-05 | 中南大学 | Method for rapid aging heat treatment of aluminum alloy |
| CN104694865A (en) * | 2015-03-03 | 2015-06-10 | 西北工业大学 | Electric pulse regression treatment method for aluminum alloy |
-
2016
- 2016-03-14 CN CN201610143135.2A patent/CN105714221A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614673A (en) * | 2013-04-11 | 2014-03-05 | 中南大学 | Method for rapid aging heat treatment of aluminum alloy |
| CN104694865A (en) * | 2015-03-03 | 2015-06-10 | 西北工业大学 | Electric pulse regression treatment method for aluminum alloy |
Non-Patent Citations (1)
| Title |
|---|
| GB/T 25745-2010: "《中华人民共和国国家标准 铸造铝合金热处理》", 23 December 2010, 中华人民共和国国家质量监督检验检疫总局 中国国家标准化管理委员会 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108690943A (en) * | 2018-05-29 | 2018-10-23 | 西安理工大学 | A method of improving Cu-Ni-Mn-Fe alloy mechanical properties |
| CN108715984A (en) * | 2018-05-29 | 2018-10-30 | 西安理工大学 | A kind of Cu-Ni-Mn-Fe Alloy At Room Temperatures quick heat treatment method |
| CN113584412A (en) * | 2021-06-01 | 2021-11-02 | 青岛科麟航空科技有限公司 | Heat treatment method of ZL105A casting and ZL105A casting |
| CN114058917A (en) * | 2021-10-29 | 2022-02-18 | 安徽省恒泰动力科技有限公司 | Aluminum alloy applied to automobile engine cylinder and preparation method thereof |
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Application publication date: 20160629 |