CN106734786A - A kind of method of high-magnesium aluminum alloy ring rolling - Google Patents

A kind of method of high-magnesium aluminum alloy ring rolling Download PDF

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Publication number
CN106734786A
CN106734786A CN201611255760.2A CN201611255760A CN106734786A CN 106734786 A CN106734786 A CN 106734786A CN 201611255760 A CN201611255760 A CN 201611255760A CN 106734786 A CN106734786 A CN 106734786A
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CN
China
Prior art keywords
ring
rolling
blank
finished
aluminum alloy
Prior art date
Application number
CN201611255760.2A
Other languages
Chinese (zh)
Inventor
刘美铃
Original Assignee
西南铝业(集团)有限责任公司
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Publication date
Application filed by 西南铝业(集团)有限责任公司 filed Critical 西南铝业(集团)有限责任公司
Priority to CN201611255760.2A priority Critical patent/CN106734786A/en
Publication of CN106734786A publication Critical patent/CN106734786A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00Making articles shaped as bodies of revolution
    • B21H1/06Making articles shaped as bodies of revolution rings of restricted axial length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

The invention discloses a kind of method of high-magnesium aluminum alloy ring rolling, the method is, in the blank operation of rolling, by rolling temperature control at 410 ± 5 DEG C, mill speed is controlled in 1200 1500mm/s.Compared to traditional aluminum alloy rolled technique, the method of above-mentioned high-magnesium aluminum alloy ring rolling, reduces rolling temperature and mill speed, and then avoids and locally produce high temperature in the operation of rolling, and then avoid and the phenomenons such as roll banding and crackle occur, reduce the difficulty of the roll forming of magnesium alloy ring high.

Description

A kind of method of high-magnesium aluminum alloy ring rolling

Technical field

The present invention relates to aluminum alloy rolled technical field, more particularly to a kind of method of high-magnesium aluminum alloy ring rolling.

Background technology

LF6 is one kind of high-magnesium aluminum alloy, and intensity is good in non-heat-treatable alloy, and corrosion resistance, machinability are good. Main alloy element in LF6 alloys is magnesium, with good corrosion stability and weldability energy, and moderate strength.Excellent Corrosion resistance makes LF6 alloys be widely used in maritime affairs purposes such as ship, and automobile, aircraft weldment, subway light rail etc..

But for the ring of high-magnesium aluminum alloy ring, especially LF6, LF6 causes it fine and close because its Mg content is up to more than 6% Property it is poor, oxidizable under high temperature, and the rolling temperature of aluminium alloy is general at 430 ± 10 DEG C, mill speed is in 1000mm/s, the amount of feeding It is 5-10mm.The situation that surface powder splits occurs when therefore rolling ring, and then the phenomenons such as roll banding and crackle occurs, increased and be rolled into Type difficulty.

In sum, how to solve the problems, such as that the difficulty of the roll forming of high-magnesium aluminum alloy ring is high, it has also become this area Technical staff's technical barrier urgently to be resolved hurrily.

The content of the invention

It is an object of the invention to provide the method for high-magnesium aluminum alloy ring rolling, to reduce being rolled into for magnesium alloy ring high The difficulty of type.

To achieve these goals, the invention provides a kind of method of high-magnesium aluminum alloy ring rolling, the method is, In the blank operation of rolling, by rolling temperature control at 410 DEG C ± 5 DEG C, mill speed is controlled in 1200-1500mm/s.

Preferably, in the blank operation of rolling, each amount of feeding is in 15-20mm.

Preferably, the blank operation of rolling, including step:

A times amount blank is chosen, the volume for making described times of amount blank is N times of the stock volume corresponding to the finished product ring, The value of wherein 2≤N≤5, and N is integer;

After heating described times of amount blank, carry out forging punching and Mechanical Processing Center hole, to obtain just shape ring;

By the just shape ring rolling into middle ring, so that the inside/outside diameter size of the middle ring and the finished product ring The inside/outside diameter size of part is identical, and the height of the middle ring is N times of the height of the finished product ring;

The middle ring is averagely divided into N sections along short transverse, to obtain semi-finished product ring;

Allowance is removed to the semi-finished product ring, the corresponding finished product ring is obtained.

Preferably, the value of the N is 2 or 3.

Preferably, the removal allowance is to remove corresponding surplus by cutting edge and deburring.

Content is introduced compared to background technology, the method for above-mentioned high-magnesium aluminum alloy ring rolling was rolled by blank Cheng Zhong, by rolling temperature control at 410 DEG C ± 5 DEG C, mill speed is controlled in 1200-1500mm/s.Closed compared to traditional aluminium Golden rolling mill practice, the method for above-mentioned high-magnesium aluminum alloy ring rolling, reduces rolling temperature and mill speed, and then avoids and roll High temperature is locally produced during system, and then is avoided and the phenomenons such as roll banding and crackle is occurred, reduce the rolling of magnesium alloy ring high The difficulty of shaping.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis The accompanying drawing of offer obtains other accompanying drawings.

Fig. 1 is a kind of flow chart of ring rolling method provided in an embodiment of the present invention.

Specific embodiment

The method that core of the invention is to provide high-magnesium aluminum alloy ring rolling, to reduce being rolled into for magnesium alloy ring high The difficulty of type.

In order that those skilled in the art more fully understands the technical scheme of present invention offer, below in conjunction with accompanying drawing and The present invention is described in further detail for specific embodiment.

As shown in figure 1, a kind of method of high-magnesium aluminum alloy ring rolling provided in an embodiment of the present invention, the method is, In the blank operation of rolling, by rolling temperature control at 410 DEG C ± 5 DEG C, mill speed is controlled in 1200-1500mm/s.

Content is introduced compared to background technology, the method for above-mentioned high-magnesium aluminum alloy ring rolling was rolled by blank Cheng Zhong, by rolling temperature control at 410 DEG C ± 5 DEG C, mill speed is controlled in 1200-1500mm/s.Closed compared to traditional aluminium Golden rolling mill practice, the method for above-mentioned high-magnesium aluminum alloy ring rolling, reduces rolling temperature and mill speed, and then avoids and roll High temperature is locally produced during system, and then is avoided and the phenomenons such as roll banding and crackle is occurred, reduce rolling for high-magnesium aluminum alloy ring It is made the difficulty of type.

In specific embodiments, in the blank operation of rolling, each amount of feeding is in 15-20mm.Compared to routine Each amount of feeding is 5-10mm in the rolling mill practice of aluminium alloy, by increasing each amount of feeding so that roll and ring Rubbing number reduces, and reduce further the possibility of ring oxidation;Although reducing the rotating speed of rolling simultaneously, the amount of feeding also increases Greatly, so cause the whole rolling mill practice of ring cycle will not increase.

In further embodiment, the above-mentioned blank operation of rolling, including step:

A times amount blank is chosen, makes N times of times stock volume of the volume of amount blank corresponding to finished product ring, wherein 2≤N ≤ 5, and the value of N is integer;

To measuring again after blank heats, carry out forging punching and Mechanical Processing Center hole, to obtain just shape ring;

By first shape ring rolling into middle ring, so that the internal-and external diameter chi of the inside/outside diameter size of middle ring and finished product ring Very little identical, the height of middle ring is N times of the height of finished product ring;

Middle ring is averagely divided into N sections along short transverse, to obtain semi-finished product ring;

Allowance is removed to semi-finished product ring, corresponding finished product ring is obtained.

By using the rolling technique, in pre-rolling major diameter, wall thickness and height less ring when, due to height Direction is changed into N times of traditional first height of the shape ring rolling corresponding to respective thickness of finished product ring correspondence, due to the increasing of height Greatly so that just the contact area of shape ring and armful roller increases, and then in the operation of rolling non-deformability of entirety strengthens, and then Avoid because embracing the factors such as roller power is unstable, cause the phenomenon of ring variation ellipse.And by the rolling method, can pass through Once rolling completes the rolling of multiple rings, improves production efficiency.Will be understood is, the rolling technique is only hair A kind of preferably citing of the bright embodiment for rolling mill practice, or single blank rolling 1 mode of ring of output.

In actual production process, when N value be 2 or 3, process it is the most smooth during ring, therefore the present invention implement It is 2 or 3 that example preferably uses the value of N.

In specific embodiments, above-mentioned removal allowance can be removed corresponding remaining by cutting edge and deburring Amount.Of course, it should be understood that above-mentioned is only the citing for removing allowance, can also be that those skilled in the art are normal Operation involved by other removal allowance.

The method to high-magnesium aluminum alloy ring rolling provided by the present invention is described in detail above.Need explanation It is that each embodiment in this specification is described by the way of progressive, what each embodiment was stressed is and other The difference of embodiment, between each embodiment identical similar part mutually referring to.

Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one Entity or operation make a distinction with another entity or operation, and between not necessarily requiring or implying these entities or operate There is any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to contain Lid nonexcludability is included, so that article or equipment including a series of key elements not only include those key elements, but also Including other key elements being not expressly set out, or it is this article or the intrinsic key element of equipment also to include.Do not having In the case of more limitations, the key element limited by sentence "including a ...", it is not excluded that in the article including above-mentioned key element Or also there is other identical element in equipment.

Specific case used herein is set forth to principle of the invention and implementation method, and above example is said It is bright to be only intended to help and understand the method for the present invention and its core concept.It should be pointed out that for the ordinary skill of the art For personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improvement Also fallen into the protection domain of the claims in the present invention with modification.

Claims (5)

1. a kind of method of high-magnesium aluminum alloy ring rolling, it is characterised in that the method is, in the blank operation of rolling, will roll At 410 DEG C ± 5 DEG C, mill speed is controlled in 1000-1500mm/s temperature control processed.
2. the method for claim 1, it is characterised in that in the blank operation of rolling, each amount of feeding is in 15- 20mm。
3. method as claimed in claim 1 or 2, it is characterised in that the blank operation of rolling, including step:
A times amount blank is chosen, the volume for making described times of amount blank is N times of the stock volume corresponding to the finished product ring, wherein 2≤N≤5, and the value of N is integer;
After heating described times of amount blank, carry out forging punching and Mechanical Processing Center hole, to obtain just shape ring;
By the just shape ring rolling into middle ring, so that the inside/outside diameter size of the middle ring and the finished product ring Inside/outside diameter size is identical, and the height of the middle ring is N times of the height of the finished product ring;
The middle ring is averagely divided into N sections along short transverse, to obtain semi-finished product ring;
Allowance is removed to the semi-finished product ring, the corresponding finished product ring is obtained.
4. method as claimed in claim 3, it is characterised in that the value of the N is 2 or 3.
5. method as claimed in claim 3, it is characterised in that the removal allowance is to be gone by cutting edge and deburring Except corresponding surplus.
CN201611255760.2A 2016-12-30 2016-12-30 A kind of method of high-magnesium aluminum alloy ring rolling CN106734786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611255760.2A CN106734786A (en) 2016-12-30 2016-12-30 A kind of method of high-magnesium aluminum alloy ring rolling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611255760.2A CN106734786A (en) 2016-12-30 2016-12-30 A kind of method of high-magnesium aluminum alloy ring rolling

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Publication Number Publication Date
CN106734786A true CN106734786A (en) 2017-05-31

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1086753A (en) * 1993-07-20 1994-05-18 武汉工业大学 Use the fluid bed reduction and carbonization one-step preparing hard alloy compound powder
CN101279348A (en) * 2008-04-23 2008-10-08 贵州航宇科技发展有限公司 Method for rolling and shaping aluminum alloy conical ring
CN102080174A (en) * 2010-12-17 2011-06-01 东北轻合金有限责任公司 Production method of high Mg-Al alloy plate
CN102126107A (en) * 2010-12-07 2011-07-20 西南铝业(集团)有限责任公司 Forging process of forged rings
CN102634701A (en) * 2012-03-13 2012-08-15 浙江永杰铝业有限公司 Production method of high-magnesium aluminum alloy sheet for ship
CN103192010A (en) * 2012-01-06 2013-07-10 山西天宝风电法兰有限公司 Dual ring rolling production process of thin-sheet wind driven generator
CN104357690A (en) * 2014-11-21 2015-02-18 广西南南铝加工有限公司 Preparation process of medium-strength anti-corrosion high-magnesium aluminum alloy plate
CN104475631A (en) * 2014-11-10 2015-04-01 太原科技大学 Size determination method of blanks of casting and rolling compound forming deep-barrel-shaped ring parts

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1086753A (en) * 1993-07-20 1994-05-18 武汉工业大学 Use the fluid bed reduction and carbonization one-step preparing hard alloy compound powder
CN101279348A (en) * 2008-04-23 2008-10-08 贵州航宇科技发展有限公司 Method for rolling and shaping aluminum alloy conical ring
CN102126107A (en) * 2010-12-07 2011-07-20 西南铝业(集团)有限责任公司 Forging process of forged rings
CN102080174A (en) * 2010-12-17 2011-06-01 东北轻合金有限责任公司 Production method of high Mg-Al alloy plate
CN103192010A (en) * 2012-01-06 2013-07-10 山西天宝风电法兰有限公司 Dual ring rolling production process of thin-sheet wind driven generator
CN102634701A (en) * 2012-03-13 2012-08-15 浙江永杰铝业有限公司 Production method of high-magnesium aluminum alloy sheet for ship
CN104475631A (en) * 2014-11-10 2015-04-01 太原科技大学 Size determination method of blanks of casting and rolling compound forming deep-barrel-shaped ring parts
CN104357690A (en) * 2014-11-21 2015-02-18 广西南南铝加工有限公司 Preparation process of medium-strength anti-corrosion high-magnesium aluminum alloy plate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《轻合金加工》委员会: "《轻合金技术 文集》", 30 April 1965 *

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