CN1807004A - 7075 aluminium alloy profile on line quenching method - Google Patents
7075 aluminium alloy profile on line quenching method Download PDFInfo
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- CN1807004A CN1807004A CN 200510002380 CN200510002380A CN1807004A CN 1807004 A CN1807004 A CN 1807004A CN 200510002380 CN200510002380 CN 200510002380 CN 200510002380 A CN200510002380 A CN 200510002380A CN 1807004 A CN1807004 A CN 1807004A
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Abstract
The invention discloses 7075 aluminum alloy section bar on-line quenching method and system. Using the method, it is not necessary to carry out vertical quenching heat treatment, the productivity is improved and the cost is reduced. The method comprises the following steps: adopting hot extrusion forming method, extruding the 7075 aluminum alloy bar to 7075 aluminum alloy section bar, then carrying out heating treatment. The 7075 aluminum alloy section bar on-line quenching system comprises extruding system, on-line hollow heater and water quench tank.
Description
Technical field
The present invention relates to non-ferrous metal processing method and system, be more particularly to a kind of 7075 aluminium alloy profile on line quenching method and press quenching system.
Background technology
At present, the quenching heat treatment of 7075 aluminum alloy extrusion section bars is the modes that adopt vertical heater to quench.Under this technological process, the section bar extrusion molding also is cooled to normal temperature, reheats then to hardening heat to carry out quenching heat treatment, and the shortcoming of this method is that equipment investment is very big, and energy consumption, management cost are also very big, and production procedure is very long, and production efficiency is low.
Summary of the invention
Technical problem to be solved of the present invention is to overcome shortcoming of the prior art, and a kind of 7075 aluminium alloy profile on line quenching method and press quenching system are provided.By this method, and adopt the press quenching system, can realize the press quenching heat treatment of 7075 aluminum alloy extrusion section bars.
In order to solve the problems of the technologies described above, the present invention realizes by following technical scheme:
A kind of 7075 aluminium alloy profile on line quenching method is characterized in that adopting earlier hot extrusion molding method, and 7075 aluminium alloys casting rod is squeezed into 7075 aluminium alloy extrusions, again this section bar are finished quenching heat treatment by the press quenching system.
Aluminium alloy profile on line quenching method as previously discussed is characterized in that: above-mentioned section bar is finished quenching heat treatment by the press quenching system and comprised following 3 steps: 1) section bar is extruded by first's extrusion system of press quenching system earlier; 2) then enter the online hollow heating furnace of second portion of press quenching system, heat therein; 3) enter the third part quenching tank of press quenching system at last, carry out quenching heat treatment therein.
Aluminium alloy profile on line quenching method as previously discussed is characterized in that reaching between 380 ℃～430 ℃ in extrusion system medium section outlet temperature; Adopt hot extrusion molding method to produce 7075 aluminium alloy extrusions at second portion, the homogenising treatment temperature of 7075 aluminium alloys casting rod is 320 ℃～440 ℃, and temperature retention time is 10～18h,
Aluminium alloy profile on line quenching method as previously discussed, the tank that it is characterized in that quenching be its water inlet up, delivery port below, the quenching tank that inflow, water yield, water temperature all can be regulated.
A kind of 7075 aluminium alloy profile on line quenching systems, it is characterized in that the press quenching system is made up of three parts: first is an extrusion system; Second portion is online hollow heating furnace; Third part is the quenching tank.
Aluminium alloy profile on line quenching system as previously discussed is characterized in that the press quenching system is made up of three parts, and first pushes and makes the section bar outlet temperature reach 380 ℃～430 ℃ extrusion system section bar; Second portion is that section bar is carried out online heating, and makes the section bar temperature reach the online hollow heating furnace of hardening heat between 440 ℃～490 ℃; Third part is the quenching tank that section bar is carried out quenching heat treatment.
Aluminium alloy profile on line quenching system as previously discussed is characterized in that the extrusion die preheat temperature is 320 ℃～420 ℃, and it is 330 ℃～380 ℃ that aluminium alloy is cast excellent preheat temperature, and the recipient temperature is set to 330 ℃～430 ℃.
Aluminium alloy profile on line quenching system as previously discussed, it is characterized in that online heating furnace be meant hollow, hollow sectional shape is circle or polygon, makes section bar can enter wherein heated hollow heating furnace under extrusion speed.
Aluminium alloy profile on line quenching system as previously discussed is characterized in that being provided with in the above-mentioned heating furnace resistance wire or merit induction heater frequently.
Aluminium alloy profile on line quenching system as previously discussed, the tank that it is characterized in that quenching be its water inlet up, delivery port below, the quenching tank that inflow, water yield, water temperature all can be regulated.
Whole press quenching system is made up of three parts, and first is an extrusion system, and its function is that section bar pushes, and the section bar outlet temperature reaches 380 ℃～430 ℃; Second portion is online hollow heating furnace, its function is that section bar is carried out online heating, the intracavity section shape of heating furnace is circle or polygon, section bar is after extrusion die is shaped, enter online hollow heating furnace with certain speed (being extrusion speed) and heat, make the section bar temperature reach 440 ℃～490 ℃ of hardening heats gradually; Third part is the quenching tank, and its function is that section bar is carried out quenching heat treatment, and the section bar that reaches hardening heat enters the quenching tank with certain speed (being extrusion speed), carries out quenching heat treatment; Aluminium alloy is a state of plastic deformation during extruding, section bar is after extrusion die is shaped, enter heater with certain speed (being extrusion speed) and begin online heating, temperature-compensating, section bar enters tank and begins quenching process then, and whole press quenching flow process (extrusion molding, online heating, quenching) is carried out continuously; The effect of this invention and benefit are to realize the press quenching of 7075 aluminium alloy extrusions, do not need to carry out vertical quenching heat treatment again.
7075 aluminium alloy profile on line quenching method of the present invention and press quenching system have following beneficial effect compared with prior art:
1, provides a kind of effective 7075 aluminium alloy profile on line quenching method and press quenching system, do not needed to carry out again vertical quenching heat treatment;
2, this method has taken into full account 7075 Al-alloy metal characteristics, crimp characteristics and quenching heat treatment technical characterstic, and will effectively guarantee subsequent heat treatment (such as the timeliness) potentiality of product, thus the strong guarantee The comprehensive performance;
3, significantly improve production efficiency simultaneously, reduce production costs high efficiency greatly.
Description of drawings
Fig. 1 is 7075 aluminium alloy profile on line quenching system complete schematics of the present invention;
Fig. 2 is the schematic diagram of the first-extrusion system of 7075 aluminium alloy profile on line quenching systems of the present invention;
Fig. 3 is the second portion-online hollow heating furnace schematic diagram of 7075 aluminium alloy profile on line quenching systems of the present invention;
Fig. 4 is the I-I cutaway view of Fig. 3;
Fig. 5 is the third part-quenching tank schematic diagram of 7075 aluminium alloy profile on line quenching systems of the present invention.
1. recipients among the figure, 2. extrusion axis, 3. dummy block, 4.7075 aluminium alloys casting rod, 5. extrusion die, 6. extruding die-cushion, 7.7075 aluminum alloy extrusion section bars, 8. heating furnace furnace wall, 9. heating furnace burner hearth, 10. water inlet pipe, 11. quenching tank cavitys, 12. outlet pipes.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
A kind of 7075 aluminium alloy profile on line quenching method, this method may further comprise the steps:
1, earlier raw material foundings such as fine aluminium, pure magnesium, zinc is become the 7075 aluminium alloys casting rod 4 of its diameter than the little 1～2mm of internal diameter of recipient 1 (see figure 2), and in the homogeneous stove, this 7075 aluminium alloy casting rod 4 is carried out homogenising and handle, the homogenising treatment temperature is set at 320 ℃～440 ℃, temperature retention time be 10～18h (hour);
2, pre-hot-extrusion mold 5, preheat temperature is 320 ℃～420 ℃, and recipient 1 temperature is set at 330 ℃～430 ℃, and it is 330 ℃～380 ℃ that 7075 aluminium alloys are cast excellent 4 preheat temperatures; The extruder tonnage of selecting is 1800T, and the extrusion ratio of 7075 aluminium alloy extrusions 7 is 30;
3, the debugging of online hollow heating furnace (see figure 3) is normal, and before the extruding beginning with temperature constant at 450 ℃～500 ℃, temperature controlling instruments is ready;
4, the debugging of quenching tank (see figure 5) is normal, water temperature adopts room temperature;
5, install extrusion die 5 and extruding die-cushion 6 etc., and 7075 aluminium alloys casting rod 4 is put in the recipient 1 beginning extrusion process; 7075 aluminium alloy extrusions 7 are extruded the mould extrusion molding, control extrusion speed by extruder operation person, make the section bar outlet temperature be controlled at 380 ℃～430 ℃, section bar enters above-mentioned online hollow heating furnace then, section bar heats when advancing, and its temperature reaches hardening heat gradually between 440 ℃～490 ℃, enters the quenching tank at last, be installed in water inlet pipe 10 water sprays on the quenching tank, 7075 aluminium alloy extrusions are carried out quenching heat treatment.
Claims (10)
1, a kind of 7075 aluminium alloy profile on line quenching method is characterized in that adopting earlier hot extrusion molding method, and 7075 aluminium alloys casting rod is squeezed into 7075 aluminium alloy extrusions, again this section bar are finished quenching heat treatment by the press quenching system.
2, aluminium alloy profile on line quenching method according to claim 1 is characterized in that: above-mentioned section bar is finished quenching heat treatment by the press quenching system and comprised following 3 steps: 1) section bar is extruded by first's extrusion system of press quenching system earlier; 2) then enter the online hollow heating furnace of second portion of press quenching system, heat therein; 3) enter the third part quenching tank of press quenching system at last, carry out quenching heat treatment therein.
3, aluminium alloy profile on line quenching method according to claim 2 is characterized in that reaching between 380 ℃～430 ℃ in extrusion system medium section outlet temperature; When second portion carries out online heating to section bar, make the section bar temperature reach hardening heat between 440 ℃～490 ℃; The homogenising treatment temperature of aluminium alloy casting rod is 320 ℃～440 ℃, and temperature retention time is 10～18h.
4, aluminium alloy profile on line quenching method according to claim 2, it is characterized in that above-mentioned quenching tank be its water inlet up, delivery port below, the quenching tank that inflow, water yield, water temperature all can be regulated.
5, a kind of 7075 aluminium alloy profile on line quenching systems, it is characterized in that this press quenching system is made up of three parts: first is an extrusion system; Second portion is online hollow heating furnace; Third part is the quenching tank.
6, aluminium alloy profile on line quenching according to claim 5 system is characterized in that the press quenching system is made up of three parts, and first pushes and makes the section bar outlet temperature reach 380 ℃～430 ℃ extrusion system section bar; Second portion is that section bar is carried out online heating, and makes the section bar temperature reach the online hollow heating furnace of hardening heat between 440 ℃～490 ℃; Third part is the quenching tank that section bar is carried out quenching heat treatment.
7, aluminium alloy profile on line quenching according to claim 5 system is characterized in that the extrusion die preheat temperature is 320 ℃～420 ℃, and it is 330 ℃～380 ℃ that aluminium alloy is cast excellent preheat temperature, and the recipient temperature is set to 330 ℃～430 ℃.
8, aluminium alloy profile on line quenching according to claim 5 system is characterized in that online heating furnace is that hollow, hollow sectional shape are circle or polygon, make section bar can enter wherein also heated hollow heating furnace under extrusion speed.
9, aluminium alloy profile on line quenching according to claim 5 system is characterized in that above-mentioned heating furnace adopts resistance heated or merit induction heating mode frequently.
10, aluminium alloy profile on line quenching according to claim 5 system, the tank that it is characterized in that quenching be its water inlet up, delivery port below, the quenching tank that inflow, water yield, water temperature all can be regulated.
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| CN 200510002380 CN1807004A (en) | 2005-01-19 | 2005-01-19 | 7075 aluminium alloy profile on line quenching method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905249A (en) * | 2010-07-30 | 2010-12-08 | 长沙仲腾金属材料科技有限公司 | Method and device for machining curved profiles in combination with online quenching temperature control in short flow |
| CN102586560A (en) * | 2012-03-14 | 2012-07-18 | 西南铝业（集团）有限责任公司 | Production process and equipment for alloy profiles, alloy bars or alloy row materials |
| CN102909229A (en) * | 2012-10-30 | 2013-02-06 | 浙江瑞金铜铝型材有限公司 | Forming process of 7003 aluminum alloy sections |
| CN104060059A (en) * | 2014-07-02 | 2014-09-24 | 山东华建铝业集团有限公司 | High-strength aluminum alloy online quenching system and online quenching technology |
| CN104878170A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Online quenching process of online quenching system for high-strength aluminum-magnesium alloy |
| CN104878171A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Online quenching process of online quenching system for high-strength aluminum-magnesium alloy |
| CN106086339A (en) * | 2016-08-29 | 2016-11-09 | 四川齐飞铝业有限公司 | A kind of aluminium section bar uniform press quenching device |
| CN106191399A (en) * | 2016-08-29 | 2016-12-07 | 四川齐飞铝业有限公司 | Use the aluminium alloy profile on line quenching device of many types of cooling |
| CN106694593A (en) * | 2017-01-24 | 2017-05-24 | 四川阳光坚端铝业有限公司 | Molding production line for aluminum alloy profile and molding technology of aluminum alloy profile |
| CN107574343A (en) * | 2017-09-27 | 2018-01-12 | 山东南山铝业股份有限公司 | Improve the production technology of automobile load bearing component Special aluminium profile fatigue durability and its automobile load bearing component Special aluminium profile of production |
| CN108247196A (en) * | 2017-08-13 | 2018-07-06 | 广东省材料与加工研究所 | A kind of agitating friction weldering processing method of 7XXX line aluminium alloys squeeze wood |
| CN109365555A (en) * | 2018-11-21 | 2019-02-22 | 贵州正合博莱金属制品有限公司 | A kind of aluminium alloy extrusions low temperature crushing failure at high speed method |
-
2005
- 2005-01-19 CN CN 200510002380 patent/CN1807004A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905249A (en) * | 2010-07-30 | 2010-12-08 | 长沙仲腾金属材料科技有限公司 | Method and device for machining curved profiles in combination with online quenching temperature control in short flow |
| CN101905249B (en) * | 2010-07-30 | 2012-01-04 | 长沙仲腾金属材料科技有限公司 | Method and device for machining curved profiles in combination with online quenching temperature control in short flow |
| CN102586560A (en) * | 2012-03-14 | 2012-07-18 | 西南铝业（集团）有限责任公司 | Production process and equipment for alloy profiles, alloy bars or alloy row materials |
| CN102909229A (en) * | 2012-10-30 | 2013-02-06 | 浙江瑞金铜铝型材有限公司 | Forming process of 7003 aluminum alloy sections |
| CN104060059A (en) * | 2014-07-02 | 2014-09-24 | 山东华建铝业集团有限公司 | High-strength aluminum alloy online quenching system and online quenching technology |
| CN104060059B (en) * | 2014-07-02 | 2016-08-17 | 山东华建铝业集团有限公司 | High-strength aluminum alloy press quenching system and press quenching technique |
| CN104878171A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Online quenching process of online quenching system for high-strength aluminum-magnesium alloy |
| CN104878170A (en) * | 2015-05-06 | 2015-09-02 | 柳州科尔特锻造机械有限公司 | Online quenching process of online quenching system for high-strength aluminum-magnesium alloy |
| CN106086339A (en) * | 2016-08-29 | 2016-11-09 | 四川齐飞铝业有限公司 | A kind of aluminium section bar uniform press quenching device |
| CN106191399A (en) * | 2016-08-29 | 2016-12-07 | 四川齐飞铝业有限公司 | Use the aluminium alloy profile on line quenching device of many types of cooling |
| CN106694593A (en) * | 2017-01-24 | 2017-05-24 | 四川阳光坚端铝业有限公司 | Molding production line for aluminum alloy profile and molding technology of aluminum alloy profile |
| CN108247196A (en) * | 2017-08-13 | 2018-07-06 | 广东省材料与加工研究所 | A kind of agitating friction weldering processing method of 7XXX line aluminium alloys squeeze wood |
| CN107574343A (en) * | 2017-09-27 | 2018-01-12 | 山东南山铝业股份有限公司 | Improve the production technology of automobile load bearing component Special aluminium profile fatigue durability and its automobile load bearing component Special aluminium profile of production |
| CN107574343B (en) * | 2017-09-27 | 2019-07-26 | 山东南山铝业股份有限公司 | Improve the production technology of automobile load bearing component Special aluminium profile fatigue durability and its automobile load bearing component Special aluminium profile of production |
| CN109365555A (en) * | 2018-11-21 | 2019-02-22 | 贵州正合博莱金属制品有限公司 | A kind of aluminium alloy extrusions low temperature crushing failure at high speed method |
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