JPH0453925B2 - - Google Patents
Info
- Publication number
- JPH0453925B2 JPH0453925B2 JP58123556A JP12355683A JPH0453925B2 JP H0453925 B2 JPH0453925 B2 JP H0453925B2 JP 58123556 A JP58123556 A JP 58123556A JP 12355683 A JP12355683 A JP 12355683A JP H0453925 B2 JPH0453925 B2 JP H0453925B2
- Authority
- JP
- Japan
- Prior art keywords
- bath
- polymeric
- steel
- heating
- salt bath
- 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 - Lifetime
Links
- 150000003839 salts Chemical class 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000011833 salt mixture Substances 0.000 claims abstract description 5
- 150000003841 chloride salts Chemical class 0.000 claims abstract 3
- 241000219112 Cucumis Species 0.000 claims description 8
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 claims description 8
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 claims description 8
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 230000003716 rejuvenation Effects 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052799 carbon Inorganic materials 0.000 abstract description 13
- -1 nitrogen-containing organic compound Chemical class 0.000 abstract 1
- 238000005261 decarburization Methods 0.000 description 8
- 230000004580 weight loss Effects 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 150000001805 chlorine compounds Chemical class 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 5
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 4
- 239000012492 regenerant Substances 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical class [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 229910001626 barium chloride Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 2
- 235000013980 iron oxide Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229940050176 methyl chloride Drugs 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003599 detergent Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical group [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
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
- C21D1/34—Methods of heating
- C21D1/44—Methods of heating in heat-treatment baths
- C21D1/46—Salt baths
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Seasonings (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Lubricants (AREA)
- Heat Treatment Of Articles (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Heat Treatment Of Steel (AREA)
- Cosmetics (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Chemical Treatment Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823231540 DE3231540A1 (de) | 1982-08-25 | 1982-08-25 | Inertes salzbad zum erwaermen von staehlen |
| DE3231540.6 | 1982-08-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5938324A JPS5938324A (ja) | 1984-03-02 |
| JPH0453925B2 true JPH0453925B2 (de) | 1992-08-28 |
Family
ID=6171642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58123556A Granted JPS5938324A (ja) | 1982-08-25 | 1983-07-08 | 鋼を加熱するための不活性塩浴 |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0103717B1 (de) |
| JP (1) | JPS5938324A (de) |
| AT (1) | ATE18921T1 (de) |
| BR (1) | BR8304569A (de) |
| DE (2) | DE3231540A1 (de) |
| DK (1) | DK152224C (de) |
| ES (1) | ES8405084A1 (de) |
| IL (1) | IL69419A (de) |
| IN (1) | IN160848B (de) |
| TR (1) | TR21551A (de) |
| YU (1) | YU153383A (de) |
| ZA (1) | ZA835229B (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE622802C (de) * | 1932-04-15 | 1935-12-06 | Emil Kleisinger Dr | Erhitzungsbad |
| DE1233423B (de) * | 1961-04-28 | 1967-02-02 | Ici Ltd | Verfahren zum Regenerieren eines zyanid-freien, geschmolzenen, zur Waermebehandlung von Metallen benutzten Salzbades |
| DE1264475B (de) * | 1966-05-05 | 1968-03-28 | Degussa | Salzbad zur Waermebehandlung von Stahl |
-
1982
- 1982-08-25 DE DE19823231540 patent/DE3231540A1/de not_active Withdrawn
-
1983
- 1983-07-08 JP JP58123556A patent/JPS5938324A/ja active Granted
- 1983-07-15 YU YU01533/83A patent/YU153383A/xx unknown
- 1983-07-18 ZA ZA835229A patent/ZA835229B/xx unknown
- 1983-07-30 IN IN951/CAL/83A patent/IN160848B/en unknown
- 1983-08-02 EP EP83107597A patent/EP0103717B1/de not_active Expired
- 1983-08-02 AT AT83107597T patent/ATE18921T1/de not_active IP Right Cessation
- 1983-08-02 TR TR21551A patent/TR21551A/xx unknown
- 1983-08-02 DE DE8383107597T patent/DE3362793D1/de not_active Expired
- 1983-08-03 IL IL69419A patent/IL69419A/xx unknown
- 1983-08-23 DK DK385283A patent/DK152224C/da not_active IP Right Cessation
- 1983-08-24 BR BR8304569A patent/BR8304569A/pt not_active IP Right Cessation
- 1983-08-24 ES ES525120A patent/ES8405084A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| TR21551A (tr) | 1984-09-27 |
| ES525120A0 (es) | 1984-05-16 |
| IN160848B (de) | 1987-08-08 |
| DK385283A (da) | 1984-02-26 |
| IL69419A0 (en) | 1983-11-30 |
| DK152224C (da) | 1988-06-27 |
| ES8405084A1 (es) | 1984-05-16 |
| EP0103717A1 (de) | 1984-03-28 |
| BR8304569A (pt) | 1984-04-03 |
| YU153383A (en) | 1985-12-31 |
| DE3362793D1 (en) | 1986-05-07 |
| DE3231540A1 (de) | 1984-03-01 |
| ZA835229B (en) | 1984-03-28 |
| IL69419A (en) | 1987-01-30 |
| DK152224B (da) | 1988-02-08 |
| JPS5938324A (ja) | 1984-03-02 |
| ATE18921T1 (de) | 1986-04-15 |
| DK385283D0 (da) | 1983-08-23 |
| EP0103717B1 (de) | 1986-04-02 |
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