CN106670360A - Ring piece rolling method - Google Patents

Ring piece rolling method Download PDF

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Publication number
CN106670360A
CN106670360A CN201611257364.3A CN201611257364A CN106670360A CN 106670360 A CN106670360 A CN 106670360A CN 201611257364 A CN201611257364 A CN 201611257364A CN 106670360 A CN106670360 A CN 106670360A
Authority
CN
China
Prior art keywords
ring
ring piece
finished
rolling
height
Prior art date
Application number
CN201611257364.3A
Other languages
Chinese (zh)
Inventor
刘美铃
Original Assignee
西南铝业(集团)有限责任公司
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 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 CN201611257364.3A priority Critical patent/CN106670360A/en
Publication of CN106670360A publication Critical patent/CN106670360A/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 ring piece rolling method. The method comprises the steps that fold amounts of blank are selected, and the volume of the fold amounts of blank is made to be N times that of blank corresponding to a finished ring piece, wherein N is larger than or equal to 2 and is smaller than or equal to 5, and N is an integer; the fold amounts of blank are heated, forging punching and machining of a center hole are carried out, and an initial ring piece is obtained; the initial ring piece is rolled to form a middle ring piece, and the inner and outer diameters of the middle ring piece are made to be the same as those of the finished ring piece, wherein the height of the middle ring piece is N times that of the finished ring piece; the middle ring piece is equally divided into N sections in the height direction, and therefore a semi-finished ring piece is obtained; and working allowance is removed for the semi-finished ring piece, and the corresponding finished ring piece is obtained. According to the method, by increasing the rolling height, the deformation resistance of the whole ring piece is enhanced, and then the phenomenon that the ring piece becomes elliptical due to the factors such as unstable roll holding force is avoided.

Description

A kind of ring rolling method

Technical field

The present invention relates to blank rolling technical field, more particularly to a kind of ring rolling method.

Background technology

Also known as ring rolling or reaming, it is by ring rolling equipment ring rolling --- machine for rolling ring is (also known as ring rolling machine Or staving press) make ring produce wall thickness reduction, enlarged-diameter, the plastic working technique of cross section profile shaping.

Existing 5 meters of machine for rolling ring due to the limitation of working ability, in pre-rolling with diameter greater than 1800mm, and wall thickness and height When degree is respectively less than the finished product ring of 80mm, usually there is ring and become oval at the full circle stage.Such as the finished product ring of pre-rolling Specification is the ring of 2183 × Φ of Φ 2093 × 80, and its wall thickness is 45mm, is highly 80mm, but when wall thickness 70~80 is rolled to, it is high 100~110mm of degree, because the full circle stage mainly carries out set round by embracing roller to ring, and now the sectional area of ring diminishes, And the corresponding height of ring is also relatively small, hold into (typically in external diameter 2000mm, internal diameter 1900mm) during the last full circle stage Yi Yin embraces the factors such as roller power is unstable, causes ring variation ellipse.

In sum, the easy variation ellipse of ring how is solved the problems, such as, it has also become those skilled in the art are urgently to be resolved hurrily Technical barrier.

The content of the invention

It is an object of the invention to provide a kind of ring rolling method, to solve the problems, such as the easy variation ellipse of ring.

To achieve these goals, the invention provides a kind of ring rolling method, the method comprising the steps of:

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 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.

Introduce content compared to background technology, above-mentioned ring rolling method, in pre-rolling major diameter, wall thickness and height compared with During little ring, such as, with diameter greater than 1800mm, when wall thickness and height are respectively less than the finished product ring of 80mm, it is by measuring blank again N times of stock volume corresponding to finished product ring so that when just the wall thickness of shape ring is rolling to less than 80mm, although corresponding ring The sectional area of part is also less, but because short transverse is changed into the first shape ring rolling of traditional finished product ring correspondence to respective thickness institute N times of corresponding height, due to the increase of height so that just shape ring increases with the contact area for embracing roller, and then is rolling Overall non-deformability strengthens in journey, and then avoids because of the factor such as armful roller power is unstable, causes the phenomenon of ring variation ellipse.

Description of the drawings

In order to be illustrated more clearly that 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 be with 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 core of the present invention is to provide it is an object of the invention to provide a kind of ring rolling method, is easily become with solving ring Oval problem.

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, ring rolling method provided in an embodiment of the present invention, in pre-rolling major diameter, wall thickness and height are equal When less, such as, with diameter greater than 1800mm, when wall thickness and height are respectively less than the finished product ring of 80mm, the method comprising the steps of:

Step 001:A times amount blank is chosen, the volume for making amount blank again is N times of the stock volume corresponding to finished product ring, The value of wherein 2≤N≤5, and N is integer, i.e. value 2,3,4 or 5.

Step 002:To measuring again after blank heats, forging punching is carried out, to obtain just shape ring;

Need exist for explanation, those skilled in the art all should be understood that the purpose in Mechanical Processing Center hole be in order to So that wall thickness is relatively uniform being adapted to roll ring technique.

Step 003:By first shape ring rolling into middle ring, so that the inside/outside diameter size of middle ring and finished product ring Inside/outside diameter size is identical, and the height of middle ring is N times of the height of finished product ring.

Step 004:Averagely it is divided into the mode of N sections, segmentation to adopt mach along short transverse middle ring Mode is completed, such as the mode such as wire cutting, to obtain semi-finished product ring;

Step 005:Allowance is removed to semi-finished product ring, corresponding finished product ring is obtained.

It should be noted that in production application, in being particularly suited for the equipment of 5 meters of machine for rolling ring, with diameter greater than 1800mm, wall thickness and height are respectively less than the finished product ring of 80mm.

Introduce content compared to background technology, above-mentioned ring rolling method, in pre-rolling major diameter, wall thickness and height compared with During little ring, such as, with diameter greater than 1800mm, when wall thickness and height are respectively less than the finished product ring of 80mm, it is by measuring blank again N times of stock volume corresponding to finished product ring so that when just the wall thickness of shape ring is rolling to less than 80mm, although corresponding ring The sectional area of part is also less, but because short transverse is changed into the first shape ring rolling of traditional finished product ring correspondence to respective thickness institute N times of corresponding height, due to the increase of height so that just shape ring increases with the contact area for embracing roller, and then is rolling Overall non-deformability strengthens in journey, and then avoids because of the factor such as armful roller power is unstable, causes the phenomenon of ring variation ellipse.

In actual production process, when N value be 2 or 3, process it is the most smooth during ring, therefore the present invention implement Example preferably adopts the value of N for 2 or 3.

More specifically in embodiment, 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, for the citing for removing allowance, to can also be that those skilled in the art are normal Other remove the operation involved by allowance.

Ring rolling method provided by the present invention is described in detail above.It should be noted that this specification In each embodiment described by the way of progressive, what each embodiment was stressed is different from other embodiment Part, 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 not necessarily require or imply between these entities or operation There is any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to contain Lid nonexcludability is included, so that not only include those key elements including the article or equipment of a series of key elements, but also Including other key elements being not expressly set out, or also include the key element intrinsic for this article or equipment.Do not having In the case of more restrictions, 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 the principle and embodiment of the present invention, 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 fall in the protection domain of the claims in the present invention with modification.

Claims (3)

1. a kind of ring rolling method, it is characterised in that the method comprising the steps of:
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 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.
2. the method for claim 1, it is characterised in that the value of the N is 2 or 3.
3. the method for claim 1, it is characterised in that the removal allowance is to be gone by cutting edge and deburring Except corresponding surplus.
CN201611257364.3A 2016-12-30 2016-12-30 Ring piece rolling method CN106670360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611257364.3A CN106670360A (en) 2016-12-30 2016-12-30 Ring piece rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611257364.3A CN106670360A (en) 2016-12-30 2016-12-30 Ring piece rolling method

Publications (1)

Publication Number Publication Date
CN106670360A true CN106670360A (en) 2017-05-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611257364.3A CN106670360A (en) 2016-12-30 2016-12-30 Ring piece rolling method

Country Status (1)

Country Link
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102228947A (en) * 2011-04-11 2011-11-02 徐州九鼎锻造科技有限公司 Finish rolling forming technique of numerical control ring rolling machine of internal long neck special-shaped wind power flange
CN102350474A (en) * 2011-08-19 2012-02-15 太原科技大学 Control method for hot forging structure property of Mn18Cr18N steel retaining ring
CN102513780A (en) * 2011-12-22 2012-06-27 西南铝业(集团)有限责任公司 Forging process of large forged ring
CN102615223A (en) * 2012-03-30 2012-08-01 山东建筑大学 Method for simultaneously rolling and expanding two trapezoid-cross-section flange ring forge pieces
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
CN103624489A (en) * 2013-11-13 2014-03-12 塞里姆株式会社 Method and device for manufacturing housing washers for automatic transmissions in high throughput through cold forging

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN102228947A (en) * 2011-04-11 2011-11-02 徐州九鼎锻造科技有限公司 Finish rolling forming technique of numerical control ring rolling machine of internal long neck special-shaped wind power flange
CN102350474A (en) * 2011-08-19 2012-02-15 太原科技大学 Control method for hot forging structure property of Mn18Cr18N steel retaining ring
CN102513780A (en) * 2011-12-22 2012-06-27 西南铝业(集团)有限责任公司 Forging process of large forged ring
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
CN102615223A (en) * 2012-03-30 2012-08-01 山东建筑大学 Method for simultaneously rolling and expanding two trapezoid-cross-section flange ring forge pieces
CN103624489A (en) * 2013-11-13 2014-03-12 塞里姆株式会社 Method and device for manufacturing housing washers for automatic transmissions in high throughput through cold forging

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Application publication date: 20170517