CN107900113A - A kind of method for evaluating Aluminum Strip Rolling oil technological lubrication performance - Google Patents
A kind of method for evaluating Aluminum Strip Rolling oil technological lubrication performance Download PDFInfo
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- CN107900113A CN107900113A CN201711148496.7A CN201711148496A CN107900113A CN 107900113 A CN107900113 A CN 107900113A CN 201711148496 A CN201711148496 A CN 201711148496A CN 107900113 A CN107900113 A CN 107900113A
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- roll
- aluminium sheet
- rolling oil
- lubrication performance
- friction coefficient
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0242—Lubricants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Lubricants (AREA)
Abstract
The present invention provides a kind of method for evaluating aluminum alloy rolling liquefaction technological lubrication performance：Cold rolling mill aluminium sheet is tested using four-roller, with the advancing slip value of measure, calculates the friction coefficient under the conditions of stable rolling, and then evaluate the technological lubrication performance of ROLLING OIL；ROLLING OIL to be evaluated is measured, is laid in by oil product that upper and lower surface is clean, on flawless aluminium sheet with dropper；Aluminium sheet is put among roll and is rolled.The distance that aluminium sheet measures two marks is removed, calculates advancing slip value.According to advancing slip value, neutral angle is calculated（Critical angle）, with reference to contact angle, calculate friction coefficient.Contrasted by friction coefficient, to evaluate ROLLING OIL technological lubrication performance.The method of the present invention scientific in principle, assay method is simple and practicable, and measurement result has great importance to actual production.
Description
Technical field
The present invention relates to a kind of method for evaluating Aluminum Strip Rolling oil technological lubrication performance.
Background technology
In aluminium strip rolling process, since aluminium hardness is relatively low, easily adhere with roller surface, form adhesive wear, produce
Abrasive particle, countless age spots are left in aluminium material surface.These abrasive particles can abrade aluminium material surface again, seriously affect its surface quality.Aluminium
ROLLING OIL plays the friction for reducing roll and rolled piece in strip processing, reduces metal plastic deformation drag, controls roll shape, takes away and roll
The deformation heat produced during system, rinses the effect such as aluminium powder and other dirts of surface of aluminum plate.Aluminum Strip Rolling oil is by base oil
(lightweight, low viscous mineral oil) and additive (long chain fatty acids, alcohol, ester) form.Base oil primarily serves carrier, the work of cooling
With；Additive mainly forms oriented attachment film in metal surface, plays the role of improving carrying, antifriction antiwear.The profit of ROLLING OIL
Slip can also have much relations except having outside the Pass with base oil and additive performance itself respectively with their compatibility.Roll
The technological lubrication performance of liquefaction plays an important role product quality, and crossing lubrication and lack of lubrication can all produce in surface of aluminum plate
Defect, causes to seriously affect to product quality.Technological lubrication, which also acts as, which reduces energy expenditure in the operation of rolling, saves the energy makees
With.Roll produces friction with aluminium in the operation of rolling, and the energy for the bigger consumption that rubs will be more, except necessary frictional force
Outside, other frictions are all energy dissipations.Therefore ROLLING OIL how is correctly prepared, and then evaluates ROLLING OIL, controlled rolling oil, to carrying
High yield quality is most important
The content of the invention
The object of the present invention is to provide a kind of method for evaluating Aluminum Strip Rolling oil technological lubrication performance.
The present invention uses following technical scheme：A kind of method for evaluating Aluminum Strip Rolling oil technological lubrication performance, it includes
Following steps：Step S1：A groove is gone out in four-roller experiment cold-rolling mill roll intermediate surface, and roller surface is cleaned with alcohol
Dried up after cleaning；Step S2：ROLLING OIL to be evaluated is measured, is laid in by oil product that upper and lower surface is clean, flawless aluminium with dropper
On plate；Step S3：Roll gap is adjusted, aluminium sheet is put among top and bottom rolls, allows roll to bite aluminium sheet, roll keeps hanging down with aluminium sheet
Directly；Step S4：After roll rolls the circle of aluminium sheet one, distance and aluminium plate thickness h that aluminium sheet measures two marks are removed；Step S5：Pass through
The following formula calculates friction coefficient：
Wherein α is contact angle, and R is roller radius, and for H to roll preceding aluminium plate thickness, H is to roll rear aluminium plate thickness, ShFor advancing slip value,
lhTwo impression distances, l are obtained on aluminium sheet within one week for roll rotation0For roll girth, γ is neutral angle, i.e. critical angle, and f is to rub
Wipe coefficient；Step S6：Compare friction coefficient, friction coefficient is smaller, and greasy property is better.
In an embodiment of the present invention, the four-roller experiment cold-rolling mill tests cold-rolling mill for Φ 140/350*450 four-rollers.
In an embodiment of the present invention, ROLLING OIL 5ml to be evaluated is measured in step S2, aluminium sheet size is 600*100*Hmm.
In an embodiment of the present invention, in step S3, four-roller experiment cold-rolling mill rotating speed is adjusted to 600r/min.
Compared with prior art, the method for the present invention scientific in principle, assay method is simple and practicable, and measurement result is to actual production
With great importance.
Embodiment
Explanation is further explained to the present invention with reference to specific embodiment.
The present invention provides a kind of method for evaluating Aluminum Strip Rolling oil technological lubrication performance, it comprises the following steps：Step
S1：A groove is gone out in four-roller experiment cold-rolling mill roll intermediate surface, and roller surface cleaning (foreign) is cleaned with alcohol
After dry up；Step S2：ROLLING OIL to be evaluated is measured, is laid in by oil product that upper and lower surface is clean, on flawless aluminium sheet with dropper；
Step S3：Roll gap is adjusted, aluminium sheet is put among top and bottom rolls, allows roll to bite aluminium sheet, roll is vertical with aluminium sheet holding；Step
Rapid S4：After roll rolls the circle of aluminium sheet one, distance and aluminium plate thickness h that aluminium sheet measures two marks are removed；Step S5：Pass through following public affairs
Formula calculates friction coefficient：
Wherein α is contact angle, and R is roller radius, and for H to roll preceding aluminium plate thickness, H is to roll rear aluminium plate thickness, ShFor advancing slip value,
lhTwo impression distances, l are obtained on aluminium sheet within one week for roll rotation0For roll girth, γ is neutral angle, i.e. critical angle, and f is to rub
Wipe coefficient；Step S6：Compare friction coefficient, friction coefficient is smaller, and greasy property is better.
In an embodiment of the present invention, the four-roller experiment cold-rolling mill tests cold-rolling mill for Φ 140/350*450 four-rollers.
In an embodiment of the present invention, ROLLING OIL 5ml to be evaluated is measured in step S2, aluminium sheet size is 600*100*Hmm.
In an embodiment of the present invention, in step S3, four-roller experiment cold-rolling mill rotating speed is adjusted to 600r/min.
Embodiment 1
(1) make marks：A pitting is gone out in Φ 140/350*450 four-rollers experiment cold-rolling mill roll intermediate surface, is used in combination
Alcohol dries up after cleaning roller surface cleaning.
(2) sample：Oil sample 5ml to be measured is measured, following table on 600*100*0.382mm is equably laid in by oil product with dropper
Face is clean, on flawless aluminium sheet.
(3) roll：Roll gap is adjusted, aluminium sheet is put among top and bottom rolls, allows roll slowly to bite aluminium sheet, roll and aluminium
Plate keeps vertical, and rotating speed is adjusted to 600r/min.
(4) measure：After roll rolls the circle of aluminium sheet one, the distance l that aluminium sheet measures two marks is removedh=45.9cm, aluminium sheet are thick
Spend h=0.310 mm.
(5) friction coefficient calculates：
α=0.0316
In formula：
α-contact angle
H-roll preceding aluminium plate thickness
H-roll rear aluminium plate thickness
Sh- advancing slip value
lh- roll rotation obtains two impression distances on aluminium sheet after a week
l0- roll girth
γ-neutral angle (critical angle)
F-friction coefficient
Dried up after cleaning roller surface cleaning with alcohol, with another block of adjacent aluminium sheet that cuts at the same time, same step,
Another ROLLING OIL friction coefficient f is measured as 0.812.
(6) evaluate：Compare the friction coefficient of two kinds of ROLLING OILs to be measured, the smaller technological lubrication performance of friction coefficient is better.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (4)
- A kind of 1. method for evaluating Aluminum Strip Rolling oil technological lubrication performance, it is characterised in that：Comprise the following steps：Step S1：A groove is gone out in four-roller experiment cold-rolling mill roll intermediate surface, and roller surface cleaning is cleaned with alcohol After dry up；Step S2：ROLLING OIL to be evaluated is measured, is laid in by oil product that upper and lower surface is clean, on flawless aluminium sheet with dropper；Step S3：Roll gap is adjusted, aluminium sheet is put among top and bottom rolls, allows roll to bite aluminium sheet, roll keeps hanging down with aluminium sheet Directly；Step S4：After roll rolls the circle of aluminium sheet one, distance and aluminium plate thickness h that aluminium sheet measures two marks are removed；Step S5：Friction coefficient is calculated by the following formula：Wherein α is contact angle, and R is roller radius, and for H to roll preceding aluminium plate thickness, h is to roll rear aluminium plate thickness, ShFor advancing slip value,Lh obtains two impression distances, l for one week for roll rotation on aluminium sheet0For roll girth, γ is neutral angle, i.e. critical angle,F is friction coefficient；Step S6：Compare friction coefficient, friction coefficient is smaller, and greasy property is better.
- 2. the method for evaluation Aluminum Strip Rolling oil technological lubrication performance according to claim 1, it is characterised in that：Described four Roller experiment cold-rolling mill tests cold-rolling mill for Φ 140/350*450 four-rollers.
- 3. the method for evaluation Aluminum Strip Rolling oil technological lubrication performance according to claim 1, it is characterised in that：Step S2 Middle to measure ROLLING OIL 5ml to be evaluated, aluminium sheet size is 600*100*Hmm.
- 4. the method for evaluation Aluminum Strip Rolling oil technological lubrication performance according to claim 1, it is characterised in that：Step S3 In, four-roller experiment cold-rolling mill rotating speed is adjusted to 600r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711148496.7A CN107900113A (en) | 2017-11-17 | 2017-11-17 | A kind of method for evaluating Aluminum Strip Rolling oil technological lubrication performance |
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| CN201711148496.7A CN107900113A (en) | 2017-11-17 | 2017-11-17 | A kind of method for evaluating Aluminum Strip Rolling oil technological lubrication performance |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05317907A (en) * | 1992-03-30 | 1993-12-03 | Sumitomo Metal Ind Ltd | Skin pass rolling |
| CN101473214A (en) * | 2006-06-17 | 2009-07-01 | Sms迪马格股份公司 | Method and device for analyzing a layer of a metal working compound on a product to be shaped |
| CN101821026A (en) * | 2007-10-08 | 2010-09-01 | 冶金研究Asbl中心 | The atomized lubrication equipment and the method for roll |
| CN102151699A (en) * | 2010-12-09 | 2011-08-17 | 西南铝业（集团）有限责任公司 | Aluminum alloy strip material rolling method |
| CN103060765A (en) * | 2013-01-18 | 2013-04-24 | 中国科学院宁波材料技术与工程研究所 | Preparation method of MoS2 composite thin film with high hardness and loss abrasion on surface of substrate |
| CN106311765A (en) * | 2016-10-11 | 2017-01-11 | 杭州电子科技大学 | Device and method for measuring friction coefficient of high-speed rolling interface |
| CN106734250A (en) * | 2017-01-04 | 2017-05-31 | 河钢股份有限公司邯郸分公司 | A kind of system and its application method of on-line checking cold-reduced sheet skin-friction coefficient |
-
2017
- 2017-11-17 CN CN201711148496.7A patent/CN107900113A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05317907A (en) * | 1992-03-30 | 1993-12-03 | Sumitomo Metal Ind Ltd | Skin pass rolling |
| CN101473214A (en) * | 2006-06-17 | 2009-07-01 | Sms迪马格股份公司 | Method and device for analyzing a layer of a metal working compound on a product to be shaped |
| CN101821026A (en) * | 2007-10-08 | 2010-09-01 | 冶金研究Asbl中心 | The atomized lubrication equipment and the method for roll |
| CN102151699A (en) * | 2010-12-09 | 2011-08-17 | 西南铝业（集团）有限责任公司 | Aluminum alloy strip material rolling method |
| CN103060765A (en) * | 2013-01-18 | 2013-04-24 | 中国科学院宁波材料技术与工程研究所 | Preparation method of MoS2 composite thin film with high hardness and loss abrasion on surface of substrate |
| CN106311765A (en) * | 2016-10-11 | 2017-01-11 | 杭州电子科技大学 | Device and method for measuring friction coefficient of high-speed rolling interface |
| CN106734250A (en) * | 2017-01-04 | 2017-05-31 | 河钢股份有限公司邯郸分公司 | A kind of system and its application method of on-line checking cold-reduced sheet skin-friction coefficient |
Non-Patent Citations (1)
| Title |
|---|
| 王学书等: "铝箔轧制摩擦系数的测定", 《轻合金加工技术》 * |
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Application publication date: 20180413 |