CN106554842A - A kind of aluminium alloy rings footpath-axially rolled is with lubricator and lubricating process method - Google Patents
A kind of aluminium alloy rings footpath-axially rolled is with lubricator and lubricating process method Download PDFInfo
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- CN106554842A CN106554842A CN201510628643.5A CN201510628643A CN106554842A CN 106554842 A CN106554842 A CN 106554842A CN 201510628643 A CN201510628643 A CN 201510628643A CN 106554842 A CN106554842 A CN 106554842A
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Abstract
The invention belongs to aluminium alloy plastic working lubricating process method, a kind of aluminium alloy rings footpath-axially rolled is specifically disclosed with lubricator and lubricating process method.Lubricant is made up of the barium mahogany sulfonate of the Adeps Sus domestica, 15～30% graphite, 3.5～4.5% molybdenum bisuphide that mass ratio is 65～80% and 0.5～1.5%.It is lubricated by being respectively directed to five moments using the lubricating process method of above-mentioned lubricant, for the footpath-axially rolled of aluminium alloy rings is formed with well adapting to property, the defects such as roll banding, surface peeling, polygon and the ellipse that can occur in the effectively solving aluminium alloy rings operation of rolling, improve rolling process stability, once roll qualification rate and product size precision, shorten the production cycle, reduce production cost, it is ensured that product quality.
Description
Technical field
The invention belongs to aluminium alloy plastic working lubricating process method, and in particular to a kind of lubricant and greaser
Process.
Background technology
Footpath-axially rolled is a kind of advanced ring parts rolling forming technique, by footpath, axial co-deflection area material
Circulation compatible deformation, can obtain that microstructure is uniform, machine direction complete, the ring of good mechanical performance
Product, is widely used in the production of the field such as Aero-Space high-quality Al alloy annular forging at present.But by
In aluminum alloy materials wearability is poor, metal inside adhesion drag is less, along with footpath-axially rolled technique
Complexity and particularity, often occur in production roll banding as rolling lubrication inappropriate technology is caused, surface peeling,
The defect such as polygon and ellipse.These defects cause the operation of rolling proceed once producing, or even lead
Cause ring to scrap, considerably increase production cost and the production cycle of ring product, reduce once rolling and close
Lattice rate and product quality.
A kind of aluminum disclosed in Chinese invention patent description CN101279348A disclosed in 23 days April in 2008
The method for rolling and shaping of alloy taper ring forged piece, Chinese invention patent description disclosed in 3 days November in 2010
A kind of processing method of non-ferrous alloy rings disclosed in CN101875093A, on June 8th, 2011 are public
A kind of roll off of the high cylinder ring forging of aluminium alloy disclosed in Chinese invention patent description CN102085549A opened
Manufacturing process, describes the forming technology flow process and manufacturing process of corresponding product respectively, but is not directed to rolling
During lubricating process method.At present, existing forge die molding, extrusion molding and sheet material, rod
The characteristics of motion and matching relationship of the technical process mould such as material roll forming rolls into type work different from footpath-axial rings
Skill, therefore existing aluminum alloy heat processing and lubrication technique is not suitable for aluminum alloy ring roll process.
The content of the invention
It is an object of the invention to provide a kind of aluminium alloy rings footpath-it is axially rolled with lubricator and lubricating process side
Method, there is roll banding, surface peeling, polygon and ellipse etc. in which in can avoiding the aluminium alloy rings operation of rolling
Defect, it is possible to increase the stability of the operation of rolling, the qualification rate for once rolling and product size precision, while
The production cycle can be shortened, production cost is reduced, it is ensured that product quality.
Technical scheme is as follows：
A kind of lubricant, it include the Adeps Sus domestica that mass ratio is 65～80%, 15～30% graphite, 3.5～4.5%
Molybdenum bisuphide and 0.5～1.5% barium mahogany sulfonate.
A kind of aluminium alloy rings footpath-axially rolled lubricating process method：
1) roll the preparatory stage
First king roller, core roller, upper and lower cone roller and milling train table top are cleared up respectively；
The above-mentioned lubricant of difference even application；
2) rolling starts bite stage
Frictionally is drawn into pass ring billet, does not use lubricant；
3) quick rolling sequence
King roller, core roller, upper and lower cone roller, milling train table top and the above-mentioned lubrication of ring billet even application to machine for rolling ring
Agent；
4) the stable rolling stage
Corner, king roller, core roller and the above-mentioned profit of milling train table top even application only to one of inner side of ring billet
Lubrication prescription；
5) into circle truing phase
Milling train table top spraying lubricant only to contacting with ring billet.
The present invention remarkable result be：Lubricant at 300～470 DEG C of temperature, with stronger absorbability,
Good chemical stability and lubricity, can effectively reduce rolling load, reduce roll wear, improve ring
Surface quality.Moistened by being respectively directed to five moments using the lubricating process method of above-mentioned lubricant
It is sliding, for the footpath-axially rolled of aluminium alloy rings is formed with well adapting to property, can effectively solving aluminium alloy
The defects such as the roll banding, surface peeling, polygon and the ellipse that occur during ring rolling, improve the operation of rolling
Stability, once rolling qualification rate and product size precision, shorten the production cycle, reduce production cost, protect
Card product quality.
Description of the drawings
Fig. 1 is rolling lubrication position schematic diagram；
Fig. 2 is ring billet schematic cross-section；
In figure：1. ring billet；2. king roller；3. core roller；4. cone roller is gone up；5. cone roller is descended；6. milling train table top.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the present invention.
Rolling lubrication position is divided into roll, milling train table top 6,1 three parts of ring billet.Wherein roll mainly includes
3 roller of core, king roller 2, upper cone roller 4 and lower cone roller 5；Ring billet 1 includes four lubricant housings, including outside
Two angles A, D, two angles B and C of inner side, need during operation targetedly to each position lubricate.
Being divided into following five stages is lubricated.
The rolling preparatory stage：Core roller, king roller, upper cone roller, lower cone roller and milling train table top are cleared up,
Start machine for rolling ring, carry out ring billet and be put into preparation；
Rolling starts bite stage：Ring billet gradually nips radial direction pass, begins setting up the operation of rolling, the stage
Radial rolling is carried out only, axially rolled without feeding, bite stage rolling ring billet wall thickness value is whole rolling wall thickness
The 5% of variable quantity；
Quick rolling sequence：Core roll neck is accelerated to feed speed, cone roller axial feed by with radial feed into one
Certainty ratio feeds, ring diameter rapid growth therewith, and the stage rolling ring billet wall thickness value is whole rolling wall thickness
The 20% of variable quantity；
The stable rolling stage：Adjustment core roll neck makes ring billet diameter to feed speed and cone roller axial feed velocity
Coarsening rate keeps constant, and ring rolling process stabilization is carried out, and the stage rolling ring billet wall thickness value is entirely to roll
The 65% of wall thickness change amount processed；
Into circle truing phase：Upper cone roller is lifted, and without axial feed, only carries out radial rolling, and feed speed
It is gradually lowered, increases the circularity of ring, the stage rolling ring billet wall thickness value is the wall thickness change amount that entirely rolls
10%.
Embodiment 1
With roll external diameter Φ 3400mm, internal diameter Φ 3180mm, the high 260mm of ring 2219 aluminium alloy rings be
Example, product size required precision ± 0.002mm, circularity require that less than 3mm planarity requirements are less than 3mm,
Surface quality requirements are smooth, without defects such as peeling, roll bandings.Ring billet size used is external diameter Φ 1600mm, interior
Footpath Φ 1150mm, the high 300mm of ring.
Step 1：Prepare lubricant
By weight percentage, the lubricant is consisted of the following composition：Adeps Sus domestica 80%, graphite 15%, two sulfur
Change molybdenum 3.5%, barium mahogany sulfonate 1.5%.
Step 2：Rolling preparatory stage lubrication
Before ring billet is taken out from heating furnace, king roller 2, core roller 3 to machine for rolling ring, upper and lower cone roller (4
5) and milling train table top 6 is cleared up respectively it is smooth with surface, is allowed to, then in its surface even application step
The lubricant prepared in 1.
Step 3：Rolling bite stage lubrication
After starting machine for rolling ring, ring billet 1 starts to rotate under the driving of drive roll 2, now steady to ensure ring billet 1
Nip pass, prevent its occur slide, before 1 external diameter of ring billet reaches Φ 1720mm, to all sites without
Need to be lubricated.
Step 4：Quick rolling sequence lubrication
As the feed speed of the carrying out of the operation of rolling, core roller 2 and upper cone roller 4 is accelerated, the diameter of ring billet 1 increases
Long speed increases sharply, and the deformation of material is violent all the more, particularly the four of ring billet 1 corner (A, B, C,
D) place's temperature rise is very fast, need to be carried out continuously spraying lubrication, and ensure uniformity.Meanwhile, to king roller 2,
Core roller 3, upper and lower cone roller (4 and 5) and milling train table top 6 carry out the interruption spraying lubrication of regularity, this mistake
Cheng Chixu reaches Φ 2060mm to 1 outside dimension of ring billet.
Step 5：The stable rolling stage lubricates
Core roller 3 is held essentially constant with the feeding of upper cone roller 4, and the diameter of ring billet 1 quickly increases, and it is right now to need
At the C of ring billet 1, continuous uniform lubrication, prevents roll banding.Simultaneously to king roller 2, core roller 3 and milling train platform
6 discontinuity even application lubricant of face, this process continue to 1 outside dimension of ring billet to reach Φ 3360mm.
Step 6：Into circle truing phase lubrication
During this, the section of ring billet 1 reduces, and 1 integral rigidity of ring billet weakens, and is the steady of the guarantee rotation of ring billet 1
It is qualitative, prevent ovalizing deflection, it is only necessary to which a small amount of lubricant is sprayed to milling train table top 6, until rolling
Process terminates.
Finish to gauge product is cooled down under room temperature state, its dimensional accuracy, circularity, flatness and surface is checked
Quality.After testing, the said goods dimensional accuracy is ± 1/1000mm, and circularity is 2mm, and flatness is 1.5mm,
Surface is smooth, without defects such as peeling, roll banding, polygons, meets technical requirement.
Embodiment 2
To roll the 7A04 aluminium alloy rings of external diameter Φ 3520mm, internal diameter Φ 3280mm, the high 180mm of ring
As a example by, product size required precision ± 2/1000mm, circularity are required less than 3mm, and planarity requirements are less than 3mm,
Surface quality requirements are smooth, without defects such as peeling, roll bandings.Ring billet size used is external diameter Φ 1600mm, interior
Footpath Φ 1160mm, the high 230mm of ring.
Step 1：Prepare lubricant
By weight percentage, the lubricant is consisted of the following composition：Adeps Sus domestica 65%, graphite 30%, two sulfur
Change molybdenum 4.5%, barium mahogany sulfonate 0.5%.
Step 2：Rolling preparatory stage lubrication
Before ring billet is taken out from heating furnace, king roller 2, core roller 3 to machine for rolling ring, upper and lower cone roller (4
5) and milling train table top 6 is cleared up respectively it is smooth with surface, is allowed to, it is then a small amount of in its surface even application
The lubricant prepared in step 1.
Step 3：Rolling bite stage lubrication
After starting machine for rolling ring, ring billet 1 starts to rotate under the driving of drive roll 2, now steady to ensure ring billet 1
Nip pass, prevent its occur slide, before 1 external diameter of ring billet reaches Φ 1740mm, to all sites without
Need to be lubricated.
Step 4：Quick rolling sequence lubrication
As the feed speed of the carrying out of the operation of rolling, core roller 2 and upper cone roller 4 is accelerated, the diameter of ring billet 1 increases
Long speed increases sharply, and the deformation of material is violent all the more, particularly the four of ring billet 1 corner (A, B, C,
D) place's temperature rise is very fast, need to be carried out continuously spraying lubrication, and ensure uniformity.Meanwhile, to king roller 2,
Core roller 3, upper and lower cone roller (4 and 5) and milling train table top 6 carry out the interruption spraying lubrication of regularity, this mistake
Cheng Chixu reaches Φ 2130mm to 1 outside dimension of ring billet.
Step 5：The stable rolling stage lubricates
Core roller 3 is held essentially constant with the feeding of upper cone roller 4, and the diameter of ring billet 1 quickly increases, and it is right now to need
At the C of ring billet 1, continuous uniform spraying lubrication, prevents roll banding.While to king roller 2, core roller 3 and rolling
6 discontinuity even application lubricant of machine table top, this process continue to 1 outside dimension of ring billet to reach Φ 3480mm.
Step 6：Into circle truing phase lubrication
During this, the section of ring billet 1 reduces, and 1 integral rigidity of ring billet weakens, and is the steady of the guarantee rotation of ring billet 1
It is qualitative, prevent ovalizing deflection, it is only necessary to 6 even application lubricant of milling train table top, until rolling
Process terminates.
Finish to gauge product is cooled down under room temperature state, its dimensional accuracy, circularity, flatness and table is checked
Face quality.After testing, the said goods dimensional accuracy is ± 1/1000mm, and circularity is 2mm, and flatness is
1.2mm, surface are smooth, without defects such as peeling, roll banding, polygons, meet technical requirement.
Embodiment 3
With differing only in for above-described embodiment 2 or embodiment 1：Step 1：Prepare lubricant
By weight percentage, the lubricant is consisted of the following composition：Adeps Sus domestica 70%, graphite 23%, two sulfur
Change molybdenum 4%, barium mahogany sulfonate 0.8%.
Claims (2)
1. a kind of lubricant, it is characterised in that：Which includes the Adeps Sus domestica that mass ratio is 65～80%, 15～30% stone
Ink, 3.5～4.5% molybdenum bisuphide and 0.5～1.5% barium mahogany sulfonate.
2. a kind of aluminium alloy rings footpath-axially rolled lubricating process method, it is characterised in that：
1) roll the preparatory stage
First king roller, core roller, upper and lower cone roller and milling train table top are cleared up respectively；
The above-mentioned lubricant of difference even application；
2) rolling starts bite stage
Frictionally is drawn into pass ring billet, does not use lubricant；
3) quick rolling sequence
King roller, core roller, upper and lower cone roller, milling train table top and the above-mentioned lubrication of ring billet even application to machine for rolling ring
Agent；
4) the stable rolling stage
Corner, king roller, core roller and the above-mentioned profit of milling train table top even application only to one of inner side of ring billet
Lubrication prescription；
5) into circle truing phase
Milling train table top spraying lubricant only to contacting with ring billet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510628643.5A CN106554842A (en) | 2015-09-28 | 2015-09-28 | A kind of aluminium alloy rings footpath-axially rolled is with lubricator and lubricating process method |
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| CN201510628643.5A CN106554842A (en) | 2015-09-28 | 2015-09-28 | A kind of aluminium alloy rings footpath-axially rolled is with lubricator and lubricating process method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109554641A (en) * | 2018-12-27 | 2019-04-02 | 天津航天长征技术装备有限公司 | A kind of aluminum alloy ring forging thermomechanical treatment process |
| CN110935732A (en) * | 2019-12-06 | 2020-03-31 | 瓯锟科技温州有限公司 | Process for applying electrostatic spraying to rolling lubrication of compound rolling mill |
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| CN101126046A (en) * | 2007-08-13 | 2008-02-20 | 中国兵器工业第五九研究所 | Lubricant for aluminum alloy equivalent temperature forming and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109554641A (en) * | 2018-12-27 | 2019-04-02 | 天津航天长征技术装备有限公司 | A kind of aluminum alloy ring forging thermomechanical treatment process |
| CN109554641B (en) * | 2018-12-27 | 2021-09-10 | 天津航天长征技术装备有限公司 | Aluminum alloy ring forging deformation heat treatment process |
| CN110935732A (en) * | 2019-12-06 | 2020-03-31 | 瓯锟科技温州有限公司 | Process for applying electrostatic spraying to rolling lubrication of compound rolling mill |
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Application publication date: 20170405 |