GR3005214T3 - - Google Patents
Info
- Publication number
- GR3005214T3 GR3005214T3 GR920401542T GR920401542T GR3005214T3 GR 3005214 T3 GR3005214 T3 GR 3005214T3 GR 920401542 T GR920401542 T GR 920401542T GR 920401542 T GR920401542 T GR 920401542T GR 3005214 T3 GR3005214 T3 GR 3005214T3
- Authority
- GR
- Greece
- Prior art keywords
- solution
- lcst
- water
- chosen
- concentration
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
Abstract
Process for modifying the cooling power of an aqueous solution of at least one water-soluble organic polymer which has a lower critical solubility temperature (LCST) with a view to its use for quenching metal alloys, characterised in that a water-soluble additive which modifies the said critical temperature is introduced into the said solution. To lower the LCST of the solution, an inorganic salt of an inorganic or organic acid is preferably employed as an additive in a concentration of between 0.1 and 200 grams per litre, this salt being chosen from the salts of alkali and alkaline-earth metals, including magnesium and zinc. To raise the LCST of the solution, a water-soluble organic derivative is added, in a concentration of between 0.1 and 200 grams per litre, chosen from aliphatic compounds containing at least one functional group chosen from alcohols, acids, aldehydes, amides and amines. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8718109A FR2624875B1 (en) | 1987-12-17 | 1987-12-17 | PROCESS FOR MODIFYING THE COOLING POWER OF AQUEOUS MEDIA FOR THE TEMPERING OF METAL ALLOYS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GR3005214T3 true GR3005214T3 (en) | 1993-05-24 |
Family
ID=9358269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GR920401542T GR3005214T3 (en) | 1987-12-17 | 1992-07-16 |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0321370B1 (en) |
| JP (1) | JPH0637665B2 (en) |
| AT (1) | ATE76104T1 (en) |
| DE (1) | DE3871106D1 (en) |
| ES (1) | ES2037267T3 (en) |
| FR (1) | FR2624875B1 (en) |
| GR (1) | GR3005214T3 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994026939A1 (en) * | 1993-05-18 | 1994-11-24 | Aluminum Company Of America | A method of heat treating metal with liquid coolant containing dissolved gas |
| JPH1150212A (en) * | 1997-07-31 | 1999-02-23 | Mazda Motor Corp | Method for heat treating light alloy casting |
| FR2780508B1 (en) * | 1998-06-24 | 2000-08-18 | Durferrit Sarl | METHOD AND DEVICE FOR CONTROLLING THE COOLING POWER OF A FLUID |
| DE10035849A1 (en) * | 2000-07-24 | 2002-02-21 | Henkel Kgaa | Particulate composite material for the controlled release of an active ingredient |
| JP6235997B2 (en) * | 2012-03-02 | 2017-11-22 | 出光興産株式会社 | Water-based coolant |
| JP6227248B2 (en) | 2012-12-27 | 2017-11-08 | 出光興産株式会社 | Water-based coolant |
| CN104937085A (en) | 2013-03-26 | 2015-09-23 | 住友精化株式会社 | Water-soluble metal working oil agent |
| DE102019202835A1 (en) * | 2019-03-01 | 2020-09-03 | Thyssenkrupp Ag | Process for accelerated cooling of flat steel products |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3022205A (en) * | 1958-05-14 | 1962-02-20 | Gen Motors Corp | Method of quenching and quenching liquid |
| US3475232A (en) * | 1966-11-23 | 1969-10-28 | Houghton & Co E F | Method of quenching |
| FR2537997B1 (en) * | 1982-12-16 | 1988-05-20 | Ugine Kuhlmann | PROCESS FOR HARDENING FERROUS ALLOYS IN AQUEOUS MEDIA |
| US4584033A (en) * | 1985-06-28 | 1986-04-22 | Union Carbide Corporation | Method of quenching |
-
1987
- 1987-12-17 FR FR8718109A patent/FR2624875B1/en not_active Expired - Fee Related
-
1988
- 1988-12-15 ES ES198888420422T patent/ES2037267T3/en not_active Expired - Lifetime
- 1988-12-15 JP JP63317575A patent/JPH0637665B2/en not_active Expired - Lifetime
- 1988-12-15 AT AT88420422T patent/ATE76104T1/en not_active IP Right Cessation
- 1988-12-15 DE DE8888420422T patent/DE3871106D1/en not_active Expired - Fee Related
- 1988-12-15 EP EP88420422A patent/EP0321370B1/en not_active Expired - Lifetime
-
1992
- 1992-07-16 GR GR920401542T patent/GR3005214T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0321370B1 (en) | 1992-05-13 |
| FR2624875A1 (en) | 1989-06-23 |
| ATE76104T1 (en) | 1992-05-15 |
| FR2624875B1 (en) | 1992-06-26 |
| ES2037267T3 (en) | 1993-06-16 |
| DE3871106D1 (en) | 1992-06-17 |
| JPH0637665B2 (en) | 1994-05-18 |
| JPH01259119A (en) | 1989-10-16 |
| EP0321370A1 (en) | 1989-06-21 |
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