EP0088095B1 - Lubricating method for cold-working aluminum and alloys thereof - Google Patents
Lubricating method for cold-working aluminum and alloys thereof Download PDFInfo
- Publication number
- EP0088095B1 EP0088095B1 EP82902678A EP82902678A EP0088095B1 EP 0088095 B1 EP0088095 B1 EP 0088095B1 EP 82902678 A EP82902678 A EP 82902678A EP 82902678 A EP82902678 A EP 82902678A EP 0088095 B1 EP0088095 B1 EP 0088095B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- rolling
- product
- alloys
- lubrication
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 11
- 229910045601 alloy Inorganic materials 0.000 title claims description 4
- 239000000956 alloy Substances 0.000 title claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 4
- 229910052782 aluminium Inorganic materials 0.000 title claims description 4
- 230000001050 lubricating effect Effects 0.000 title claims 2
- 238000005482 strain hardening Methods 0.000 title description 2
- 238000005461 lubrication Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000005097 cold rolling Methods 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000839 emulsion Substances 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 11
- 230000000996 additive effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 150000002193 fatty amides Chemical class 0.000 description 1
- 150000002194 fatty esters Chemical class 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
Definitions
- the method according to the invention which is applied to the cold rolling of sheets or strips of A1 or its alloys and which makes it possible to eliminate such defects therefore consists of a pre-lubrication of the product before rolling using a whole oil mineral and / or synthetic, optionally additive and into a lubrication of the product and of the tools during rolling with the aid of water or an aqueous lubricant.
- the pre-lubrication of the product before its cold rolling can result either from a specific operation, or be the result of a previous operation, the product obtained not being "degreased".
- this operation is carried out, discontinuously or continuously, on the cold rolling line using any known device, such as spray bars (with or without air), electrostatic device, wetted wiper. of oil, etc.
- any known device such as spray bars (with or without air), electrostatic device, wetted wiper. of oil, etc.
- the uniformity and regularity of the thickness of the layer of lubricant deposited, as well as its adhesion to the product, can be improved by known systems of brushes, felts, pinch rollers, etc. ..
- the lubrication of the cold rolling operation is ensured by an emulsion or a solution of oil in water or even water alone, possibly additive.
- laminated strips free from surface defects, can be obtained from strips in the annealed (O) or in the strain-hardened state (H) with reduction rates ranging from 50 to 90% in one single pass and at rolling speeds ranging from 500 to 1000 m / min, for thicknesses generally between 15 and 0.15 mm.
- Pre-lubrication was carried out by depositing a mixture of mineral oil and synthetic oil (50% - 50% by weight) at the rate of a few grams / m 2 by spraying on both sides of the strip and spinning by pinch rollers.
- the rolling itself was carried out on a quarto monocage rolling mill with lubrication by sprinkling using an aqueous emulsion at 10% by weight of oil:
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Metal Rolling (AREA)
- Metal Extraction Processes (AREA)
Description
La présente invention se rapporte à une méthode de lubrification lors du laminage à froid de bandes ou tôles en aluminium ou ses alliages.The present invention relates to a lubrication method during the cold rolling of strips or sheets of aluminum or its alloys.
On sait que le laminage à froid des bandes en aluminium a été réalisé durant de nombreuses années avec lubrification à l'huile minérale ou de synthèse, additivée ou non, qui assure simultanément la lubrification et le refroidissement du produit et des outillages (cylindres) ; cette huile est généralement du kérosène ; cependant, en raison, d'une part des performances limitées ainsi obtenues (vitesse, taux d'écrouissage, etc...), et, d'autre part des dangers d'inflammation et d'incendie, on a remplacé cette huile par un milieu essentiellement aqueux constitué d'une émulsion ou d'une solution d'huile dans l'eau contenant jusqu'à 30 % environ (en poids) d'huile.It is known that the cold rolling of aluminum strips was carried out for many years with lubrication with mineral or synthetic oil, additive or not, which simultaneously provides lubrication and cooling of the product and of the tools (cylinders); this oil is generally kerosene; however, due, on the one hand to the limited performances thus obtained (speed, rate of work hardening, etc.), and, on the other hand to the dangers of ignition and fire, this oil was replaced by an essentially aqueous medium consisting of an emulsion or an oil-in-water solution containing up to about 30% (by weight) of oil.
C'est ainsi que le procédé de laminage à froid, décrit dans le brevet GB-B 1 006 388, consiste en une prélubrification du produit avant les cylindres et une lubrification séparée au niveau des cylindres et de la tôle ou de la bande en A1, à l'aide d'une émulsion aqueuse d'huile (voir par exemple p. 7, lignes 1-27 ou la revendication 1).Thus the cold rolling process, described in patent GB-B 1 006 388, consists of a pre-lubrication of the product before the rolls and a separate lubrication at the level of the rolls and of the sheet or strip in A1 , using an aqueous oil emulsion (see for example p. 7, lines 1-27 or claim 1).
Cependant, cette méthode, conduisant à des performances supérieures en toute sécurité, est limitée par l'apparition de défauts de surface qui se manifestent soit sous forme de bandes longitudinales (parallèles à la direction de laminage), d'aspects différents appelés « zone de matité différente » (z. m. d.), soit sous forme de défauts locaux (auréoles, défauts discontinus dits « flamèches •), soit sous forme de « zones de rugosité différente (Z. r. d.).However, this method, leading to superior performance in complete safety, is limited by the appearance of surface defects which are manifested either in the form of longitudinal strips (parallel to the rolling direction), of different aspects called "zone of different mattness ”(zmd), either in the form of local faults (halos, discontinuous faults called“ flèche •), or in the form of “zones of different roughness (Z. rd).
Le procédé selon l'invention qui s'applique au laminage à froid de tôles ou bandes en A1 ou ses alliages et qui permet d'éliminer de tels défauts consiste donc en une prélubrification du produit avant laminage à l'aide d'une huile entière minérale et/ou de synthèse, éventuellement additivée et en une lubrification du produit et des'outillages pendant le laminage à l'aide d'eau ou d'un lubrifiant aqueux.The method according to the invention which is applied to the cold rolling of sheets or strips of A1 or its alloys and which makes it possible to eliminate such defects therefore consists of a pre-lubrication of the product before rolling using a whole oil mineral and / or synthetic, optionally additive and into a lubrication of the product and of the tools during rolling with the aid of water or an aqueous lubricant.
La prélubrification peut être réalisée à l'aide d'une huile minérale ou de synthèse contenant éventuellement certains additifs tels que acides gras, alcools gras, esters gras, amines ou amides grasses, produits organiques soufrés ou phosphoreux, produits mouillants ou anticorrosion, corps gras d'origine organique tels que le suif, etc...Pre-lubrication can be carried out using a mineral or synthetic oil optionally containing certain additives such as fatty acids, fatty alcohols, fatty esters, amines or fatty amides, organic sulfur or phosphorous products, wetting or anti-corrosion products, fatty substances of organic origin such as tallow, etc.
La prélubrification du produit avant son laminage à froid peut résulter soit d'une opération spécifique, soit être le résultat d'une opération antérieure, le produit obtenu n'étant pas « dégraissé •.The pre-lubrication of the product before its cold rolling can result either from a specific operation, or be the result of a previous operation, the product obtained not being "degreased".
Dans le premier cas, cette opération est effectuée, de façon discontinue ou en continu, sur la ligne de laminage à froid à l'aide de tout dispositif connu, tel que rampes de pulvérisation (avec ou sans air), dispositif électrostatique, frotteur imbibé d'huile, etc... L'uniformité et la régularité de l'épaisseur de la couche de lubrifiant déposée, ainsi que son adhérence sur le produit, peuvent être améliorées par des systèmes connus de brosses, feutres, rouleux pinceurs, etc...In the first case, this operation is carried out, discontinuously or continuously, on the cold rolling line using any known device, such as spray bars (with or without air), electrostatic device, wetted wiper. of oil, etc. The uniformity and regularity of the thickness of the layer of lubricant deposited, as well as its adhesion to the product, can be improved by known systems of brushes, felts, pinch rollers, etc. ..
La lubrification de l'opération de laminage à froid est assurée par une émulsion ou une solution d'huile dans l'eau ou même de l'eau seule, éventuellement additivée.The lubrication of the cold rolling operation is ensured by an emulsion or a solution of oil in water or even water alone, possibly additive.
Dans ces conditions, on peut obtenir des bandes laminées, exemptes de défauts superficiels, à partir de bandes à l'état recuit (O) ou à l'état écroui (H) avec des taux de réduction allant de 50 à 90 % en une seule passe et à des vitesses de laminage allant de 500 à 1 000 m/mn, pour des épaisseurs généralement comprises entre 15 et 0,15 mm.Under these conditions, laminated strips, free from surface defects, can be obtained from strips in the annealed (O) or in the strain-hardened state (H) with reduction rates ranging from 50 to 90% in one single pass and at rolling speeds ranging from 500 to 1000 m / min, for thicknesses generally between 15 and 0.15 mm.
Les exemples suivant illustrent le résultat obtenu avec la méthode selon l'invention comparativement à l'art antérieur pour le laminage de bandes d'alliages d'aluminium (voir tableau I).The following examples illustrate the result obtained with the method according to the invention compared to the prior art for the rolling of aluminum alloy strips (see Table I).
La prélubrification a été assurée par dépôt d'un mélange d'huile minérale et d'huile de synthèse (50 % - 50 % en poids) à raison de quelques grammes/m2 par arrosage sur les deux faces de la bande et essorage par rouleaux pinceurs. Le laminage proprement dit a été effectué sur un laminoir quarto monocage avec lubrification par arrosage à l'aide d'une émulsion aqueuse à 10 % en poids d'huile :
Ces essais montrent que cette méthode permet d'augmenter de façon substantielle la productivité du laminoir tout en obtenant un très bon état de surface des produits laminés.
(Voir Tableau page 3)
(See Table on page 3)
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8117529A FR2512702B1 (en) | 1981-09-11 | 1981-09-11 | LUBRICATION METHOD FOR COLD WORKING OF ALUMINUM AND ITS ALLOYS |
| FR8117529 | 1981-09-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0088095A1 EP0088095A1 (en) | 1983-09-14 |
| EP0088095B1 true EP0088095B1 (en) | 1987-05-27 |
Family
ID=9262209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82902678A Expired EP0088095B1 (en) | 1981-09-11 | 1982-09-09 | Lubricating method for cold-working aluminum and alloys thereof |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0088095B1 (en) |
| JP (1) | JPS58501418A (en) |
| KR (1) | KR890002486B1 (en) |
| CA (1) | CA1201611A (en) |
| DE (1) | DE3276413D1 (en) |
| DK (1) | DK160464C (en) |
| FR (1) | FR2512702B1 (en) |
| GR (1) | GR78054B (en) |
| HU (1) | HUT35557A (en) |
| IE (1) | IE53410B1 (en) |
| IT (1) | IT1152524B (en) |
| WO (1) | WO1983000820A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0824951B2 (en) * | 1991-12-12 | 1996-03-13 | 日本軽金属株式会社 | Hot rolling method for aluminum slabs |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1072039A (en) * | 1953-01-09 | 1954-09-07 | Forges D Hennebont | Method for oiling a strip, for example a sheet metal strip during cold rolling, and device for carrying out this process |
| NL242598A (en) * | 1956-09-07 | |||
| DE1402760B2 (en) * | 1961-06-13 | 1971-03-11 | Metallgesellschaft AG, 6000 Frank fürt | COVER TO FACILITATE THE COLD FORMING OF METALLIC WORKPIECES |
| US3192752A (en) * | 1963-06-27 | 1965-07-06 | Aluminum Co Of America | Cold rolling aluminum and product |
-
1981
- 1981-09-11 FR FR8117529A patent/FR2512702B1/en not_active Expired
-
1982
- 1982-09-03 IT IT23113/82A patent/IT1152524B/en active
- 1982-09-03 GR GR69198A patent/GR78054B/el unknown
- 1982-09-09 WO PCT/FR1982/000145 patent/WO1983000820A1/en active IP Right Grant
- 1982-09-09 EP EP82902678A patent/EP0088095B1/en not_active Expired
- 1982-09-09 DE DE8282902678T patent/DE3276413D1/en not_active Expired
- 1982-09-09 HU HU823200A patent/HUT35557A/en unknown
- 1982-09-09 JP JP57502668A patent/JPS58501418A/en active Pending
- 1982-09-10 CA CA000411138A patent/CA1201611A/en not_active Expired
- 1982-09-10 IE IE2226/82A patent/IE53410B1/en not_active IP Right Cessation
- 1982-09-11 KR KR8204121A patent/KR890002486B1/en active
-
1983
- 1983-05-10 DK DK206983A patent/DK160464C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR840001442A (en) | 1984-05-07 |
| IT8223113A0 (en) | 1982-09-03 |
| IE53410B1 (en) | 1988-11-09 |
| DK206983A (en) | 1983-05-10 |
| JPS58501418A (en) | 1983-08-25 |
| KR890002486B1 (en) | 1989-07-10 |
| FR2512702B1 (en) | 1986-05-09 |
| DK160464B (en) | 1991-03-18 |
| IE822226L (en) | 1983-03-11 |
| IT1152524B (en) | 1987-01-07 |
| EP0088095A1 (en) | 1983-09-14 |
| FR2512702A1 (en) | 1983-03-18 |
| GR78054B (en) | 1984-09-26 |
| DK206983D0 (en) | 1983-05-10 |
| WO1983000820A1 (en) | 1983-03-17 |
| DK160464C (en) | 1991-08-26 |
| DE3276413D1 (en) | 1987-07-02 |
| HUT35557A (en) | 1985-07-29 |
| CA1201611A (en) | 1986-03-11 |
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