WO1983000820A1 - Lubricating method for cold-working aluminum and alloys thereof - Google Patents
Lubricating method for cold-working aluminum and alloys thereof Download PDFInfo
- Publication number
- WO1983000820A1 WO1983000820A1 PCT/FR1982/000145 FR8200145W WO8300820A1 WO 1983000820 A1 WO1983000820 A1 WO 1983000820A1 FR 8200145 W FR8200145 W FR 8200145W WO 8300820 A1 WO8300820 A1 WO 8300820A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lubrication
- cold
- oil
- alloys
- done
- Prior art date
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 title claims description 14
- 229910045601 alloy Inorganic materials 0.000 title claims description 4
- 239000000956 alloy Substances 0.000 title claims description 4
- 238000005482 strain hardening Methods 0.000 title description 3
- 230000001050 lubricating effect Effects 0.000 title 1
- 239000003921 oil Substances 0.000 claims abstract description 16
- 238000005461 lubrication Methods 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims abstract description 8
- 239000000839 emulsion Substances 0.000 claims abstract description 5
- 230000000996 additive effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 8
- 238000005097 cold rolling Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 3
- 239000011707 mineral Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 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
- 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 present invention relates to a lubrication method during the cold transformation of aluminum and its alloys, in particular during cold rolling into strips.
- the Applicant has found that it is possible to eliminate such defects when the cold transformatican is carried out on a pre-lubricated product, using a mineral or synthetic oil possibly 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.
- a mineral or synthetic oil possibly 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.
- the pre-lubrication of the product before its cold transformation 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 processing line (or not) using any known device, such as spray bars (with or without air), device electrostatic, oiled wiper, 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 deformation operation is ensured by whole oil (or a mixture of oils), an emulsion or a solution of oil in water and even water alone.
- the description of the invention relates to the cold rolling of strips, the method also applies to the cold rolling of other products, such as bars, tubes, sheets, profiles, etc. or other modes of cold deformation such as drawing or drawing.
- Pre-lubrication was carried out by depositing a mixture of mineral oil and synthetic oil (50% - 50% by weight) at a rate of a few grams / m2 by spraying on both sides of the strip and spinning with rollers pinchers.
- the propranent rolling said was carried out on a quarto monccage 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)
Abstract
The invention relates to the rolling of aluminum and, more particularly, lubrication for cold rolling. It is recommended to prelubricate aluminum before rolling, with mineral or synthetic oils, modified by additives, or with solutions or emulsions of said oils. The prelubrication avoids the formation of many surface defects during cold rolling.
Description
METHODE DE LUBREFICATICN LORS DU TRAVAIL A FROID DE L'ALUMINIUM LUBREFICATICN METHOD DURING COLD WORKING OF ALUMINUM
ET DE SES ALLIAGES La présente invention se rapporte à une méthode de lubrification lors de la transformation à froid de l'aluminium et de ses alliages, en particulier lors du laminage à froid en bandes.AND ITS ALLOYS The present invention relates to a lubrication method during the cold transformation of aluminum and its alloys, in particular during cold rolling into strips.
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 simπItanémsnt 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, en 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.We know that the cold rolling of aluminum strips has been carried out for many years with lubrication with mineral or synthetic oil, additive or not, which ensures luπItanémsnt lubrication and cooling of the product and 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, replaced this oil by an essentially aqueous medium consisting of an emulsion or an oil-in-water solution containing up to approximately 30% (by weight) of oil.
Cette méthode, conduisant à des performances supérieures en toute sécurité, est cependant limitée par l'apparition de défauts de surfa ce qui se manifestent soit sous forme de bandes longitudinales (pa rallàles 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.).This method, leading to superior performance in complete safety, is however limited by the appearance of surface defects which manifest themselves either in the form of longitudinal strips (pa parallel to the direction of rolling), of different aspects called "zone of different dullness "(zmd), either in the form of local defects (halos, discontinuous defects called" flames "), or in the form of" zones of different roughness "(zrd).
La demanderesse a trouvé qu'il était possible d'éliminer de tels défauts lorsque la transformatican à froid est effectuée sur un produit prélubrifié, à l'aide d'une huile minérale ou de synthèse contenant éventuellement certains additifs tels que acides gras, alcools gras, esters gras, aminés ou amides grasses, produits organiques soufrés ou phosphoreux, produits mouillants ou anticorrosion, corps gras d'origine organique tels que le suif, etc...The Applicant has found that it is possible to eliminate such defects when the cold transformatican is carried out on a pre-lubricated product, using a mineral or synthetic oil possibly 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 sa transformation à froid peut résulter soit d'une opération spécifique, soit être le résultat d'une opération antérieure, le produit obtenu n'étant pas "dégraissé"
Dans le premier cas, cette opération est effectuée, de façon discontinue ou en continu, sur la ligne de transformation à froid (ou non) à l'aide de tout dispositif connu, tel que rampes de pulvérisation (avec ou sans air), dispositif électrostatique, frotteur imbibé d'hui le, 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, rouleaux pinceurs, etc...The pre-lubrication of the product before its cold transformation can result either from a specific operation, or be the result of a previous operation, the product obtained not being "degreased" In the first case, this operation is carried out, discontinuously or continuously, on the cold processing line (or not) using any known device, such as spray bars (with or without air), device electrostatic, oiled wiper, 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 déformation à froid est assurée par de l'huile entière (ou un mélange d'huiles), une émulsion ou une solution d'huile dans l'eau et même de l'eau seule.The lubrication of the cold deformation operation is ensured by whole oil (or a mixture of oils), an emulsion or a solution of oil in water and even water alone.
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 1000 m/mn, pour des épaisseurs généralement cαπprises entre 15 et 0,15 mm.Under these conditions, it is possible to obtain laminated strips, free from surface defects, from strips in the annealed (O) or in the hardened (H) state 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.
Bien que l'exposé de l'invention soit relatif au laminage de bandes à froid, la méthode s'applique également au laminage à froid d'autres produits, tels que barres, tubes, tôles, profilés, etc...ou à d'autres modes de déformation à froid tels que l'étirage ou le tréfilage.Although the description of the invention relates to the cold rolling of strips, the method also applies to the cold rolling of other products, such as bars, tubes, sheets, profiles, etc. or other modes of cold deformation such as drawing or drawing.
Les exemples suivants 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 strips of aluminum alloys (see Table I).
La prêlubrification a été assurée par dépôt d'un mélange d'huile minérale et d'huile de synthèse (50 % - 50 % en poids) à raison de quelques gramrres/m2 par arrosage sur les deux faces de la bande et essorage par rouleaux pinceurs. Le laminage propranent dit a été effectué sur un laminoir quarto monccage avec lubrification par arrosage à l'aide d'une émulsion aqueuse à 10 % en poids d'huile :Pre-lubrication was carried out by depositing a mixture of mineral oil and synthetic oil (50% - 50% by weight) at a rate of a few grams / m2 by spraying on both sides of the strip and spinning with rollers pinchers. The propranent rolling said was carried out on a quarto monccage rolling mill with lubrication by sprinkling using an aqueous emulsion at 10% by weight of oil:
"ACRA 75 A" de EAREEST (1) "2319 L 17" de SHELL (2)
Ces essais montrent que cette méthode permet d'augmenter de façon substantielle la productivité du laminoir tout en obtenant un très bcn état de surface des produits laminés.
"ACRA 75 A" from EAREEST (1) "2319 L 17" from SHELL (2) These tests show that this method makes it possible to substantially increase the productivity of the rolling mill while obtaining a very good surface condition of the rolled products.
(a) art antérleur - (b) selon l'invention
(a) anterror art - (b) according to the invention
Claims
REVENDICATIONS 1/ Méthode de lubrification lors de la transformation à froid de l'aluminium et de ses alliages, caractérisée en ce que le produit entrant dans l'outil de déformation est prélubrifié à l'aide d'un lubrifiant à base d'huile minérale et/ou de synthèse, éventuellement additivé.CLAIMS 1 / Lubrication method during the cold transformation of aluminum and its alloys, characterized in that the product entering the deformation tool is pre-lubricated using a lubricant based on mineral oil and / or synthetic, optionally additive.
2/ Méthode selon la revendication 1, caractérisée en ce que la pré lubrification résulte de la lubrification lors d'une étape antérieure de la fabrication.2 / Method according to claim 1, characterized in that the pre-lubrication results from the lubrication during an earlier stage of manufacture.
3/ Méthode selon la revendication 1, caractérisée en ce que la pré lubrificatiαn résulte d'une opération spécifique.3 / Method according to claim 1, characterized in that the pre-lubrication arises from a specific operation.
4/ Méthode selon l'une des revendications 1 à 3, caractérisée en ce que la déformation à froid se fait avec lubrification à l'huile (ou mélange d'huiles) entière(s), éventuellement additivée.4 / Method according to one of claims 1 to 3, characterized in that the cold deformation is done with lubrication with whole oil (or mixture of oils), optionally additive.
5/ Méthode selon l'une des revendications 1 à 3, caractérisée en ce que la déformation à froid se fait avec une êmulsion d'huile dans l'eau éventuellement additivée.5 / Method according to one of claims 1 to 3, characterized in that the cold deformation is done with an emulsion of oil in water optionally additive.
6/ Méthode selon l'une des revendications 1 à 3, caractérisée en ce qa la déformation à froid se fait avec lubrification à l'eau, éventuellement additivée.6 / Method according to one of claims 1 to 3, characterized in that the cold deformation is done with lubrication with water, optionally additive.
7/ Méthode selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la déformatiαi à froid se fait avec lubrification par une solution dans l'eau d'huile éventuellanent additivée.
7 / A method according to any one of claims 1 to 3, characterized in that the cold deformatiαi is done with lubrication by a solution in water with optional additive oil.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT82902158T ATE10715T1 (en) | 1981-07-10 | 1982-07-09 | CUTTING PLATE FOR CUTTING TOOLS. |
| DE8282902678T DE3276413D1 (en) | 1981-09-11 | 1982-09-09 | Lubricating method for cold-working aluminum and alloys thereof |
| DK206983A DK160464C (en) | 1981-09-11 | 1983-05-10 | PROCEDURE FOR LUBRICATION DURING COLD PROCESSING OF ALUMINUM AND ALLOYS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR81/17529810911 | 1981-09-11 | ||
| FR8117529A FR2512702B1 (en) | 1981-09-11 | 1981-09-11 | LUBRICATION METHOD FOR COLD WORKING OF ALUMINUM AND ITS ALLOYS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1983000820A1 true WO1983000820A1 (en) | 1983-03-17 |
Family
ID=9262209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1982/000145 WO1983000820A1 (en) | 1981-07-10 | 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 |
Citations (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 |
| CH378446A (en) * | 1956-09-07 | 1964-06-15 | Shell Res Ltd | Process for rolling metals and lubricants and coolants for carrying out this process |
| GB1006388A (en) * | 1963-06-27 | 1965-09-29 | Aluminum Co Of America | Continuous cold rolled aluminium strip and method for producing same |
| CH417413A (en) * | 1961-06-13 | 1966-07-15 | Metallgesellschaft Ag | Process to facilitate the cold working of metals |
-
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 EP EP82902678A patent/EP0088095B1/en not_active Expired
- 1982-09-09 HU HU823200A patent/HUT35557A/en unknown
- 1982-09-09 DE DE8282902678T patent/DE3276413D1/en not_active Expired
- 1982-09-09 JP JP57502668A patent/JPS58501418A/en active Pending
- 1982-09-09 WO PCT/FR1982/000145 patent/WO1983000820A1/en active IP Right Grant
- 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
Patent Citations (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 |
| CH378446A (en) * | 1956-09-07 | 1964-06-15 | Shell Res Ltd | Process for rolling metals and lubricants and coolants for carrying out this process |
| CH417413A (en) * | 1961-06-13 | 1966-07-15 | Metallgesellschaft Ag | Process to facilitate the cold working of metals |
| GB1006388A (en) * | 1963-06-27 | 1965-09-29 | Aluminum Co Of America | Continuous cold rolled aluminium strip and method for producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8223113A0 (en) | 1982-09-03 |
| DE3276413D1 (en) | 1987-07-02 |
| IT1152524B (en) | 1987-01-07 |
| DK206983D0 (en) | 1983-05-10 |
| HUT35557A (en) | 1985-07-29 |
| DK206983A (en) | 1983-05-10 |
| KR890002486B1 (en) | 1989-07-10 |
| IE53410B1 (en) | 1988-11-09 |
| EP0088095B1 (en) | 1987-05-27 |
| CA1201611A (en) | 1986-03-11 |
| FR2512702A1 (en) | 1983-03-18 |
| DK160464B (en) | 1991-03-18 |
| IE822226L (en) | 1983-03-11 |
| EP0088095A1 (en) | 1983-09-14 |
| KR840001442A (en) | 1984-05-07 |
| GR78054B (en) | 1984-09-26 |
| FR2512702B1 (en) | 1986-05-09 |
| DK160464C (en) | 1991-08-26 |
| JPS58501418A (en) | 1983-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3298954A (en) | Metal working lubricant | |
| CA2537501A1 (en) | Method and device for applying an adjustable tensile-stress distribution, in particular in the edge regions of cold-rolled metal strips | |
| WO1983000820A1 (en) | Lubricating method for cold-working aluminum and alloys thereof | |
| IE51790B1 (en) | Oil-in-water emulsion for cold rolling aluminium and aluminium alloys | |
| CA1144534A (en) | Procedure in reshaping metallic materials under cold-flow conditions | |
| US6486102B1 (en) | Oil-in-water emulsion comprising at least one lubricating additive | |
| JPH08253789A (en) | Rolling oil concentrate composition and rolling oil composition | |
| RU2769334C1 (en) | Method of cold rolling of thin steel strips | |
| US2303141A (en) | Lubricating mixture for cold reducing mills | |
| RU2177383C1 (en) | Method for lubricating and cooling rolls | |
| RU1831392C (en) | Process for operation of technological lubricant at cold rolling | |
| SU1168592A1 (en) | Coolant emulsol for plastic metal working | |
| JP3937061B2 (en) | Cold rolling oil | |
| JPH0475086B2 (en) | ||
| JP3392342B2 (en) | Hot rolling lubricant supply method | |
| JPH0516925B2 (en) | ||
| RU2124955C1 (en) | Process of cold rolling of thin steel strips | |
| JPH08143888A (en) | Lubricant composition for rolling | |
| JPH10156403A (en) | Method for executing temper rolling of cold rolled steel sheet | |
| RU2123398C1 (en) | Strip cold rolling method | |
| SU1018966A1 (en) | Lubricant for cold rolling of pipes | |
| JPS60161488A (en) | Cold rolling oil for steel plate | |
| SU835550A1 (en) | Method of applying technological lubricant at pressure treating of metals | |
| SU1752459A1 (en) | Metal rolling method | |
| RU2040588C1 (en) | Method of preparing stainless steel for cold plastic working |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Designated state(s): DK HU JP US |
|
| AL | Designated countries for regional patents |
Designated state(s): BE CH DE GB LU NL |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1982902678 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1982902678 Country of ref document: EP |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1982902678 Country of ref document: EP |