YU46472B - PROCEDURE FOR HEAT TREATMENT OF TEMPERED CAST IRON - Google Patents
PROCEDURE FOR HEAT TREATMENT OF TEMPERED CAST IRONInfo
- Publication number
- YU46472B YU46472B YU142388A YU142388A YU46472B YU 46472 B YU46472 B YU 46472B YU 142388 A YU142388 A YU 142388A YU 142388 A YU142388 A YU 142388A YU 46472 B YU46472 B YU 46472B
- Authority
- YU
- Yugoslavia
- Prior art keywords
- degrees
- temperature
- heat treatment
- cast iron
- procedure
- Prior art date
Links
- 229910001018 Cast iron Inorganic materials 0.000 title abstract 2
- 238000010438 heat treatment Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000005496 tempering Methods 0.000 abstract 2
- 238000000137 annealing Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 229910001567 cementite Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000005261 decarburization Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical group C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 abstract 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
- C21D5/00—Heat treatments of cast-iron
- C21D5/04—Heat treatments of cast-iron of white cast-iron
- C21D5/06—Malleabilising
- C21D5/08—Malleabilising with oxidation of carbon
- C21D5/10—Malleabilising with oxidation of carbon in gaseous agents
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)
- Heat Treatment Of Articles (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
POSTOPEK ZA TOPLOTNO OBDELAVO TEMPRANE LITINE, v pretočni plinski peči za tempranje, označen s tem, da razogljičimo z žarjenjem ulitke v pretočni plinski peči za tempranje pri temperaturi od 1000 stepeni C do 1100 stepeni C i jih držimo pri tej temperaturi do popolnega razpad cementita, zatem pospešeno ohladimo na 730 stepeni C in od te temperature ohlajamo z ohlajevalno hitrostjo 2 stepena C/h do 5 stepeni C/h do temperature od 680 stepeni C do 710 stepeni C in končno ohladimo na zraku do sobne temperature. Prijava sadrži još 6 zavisnih zahteva.PROCESS FOR HEAT TREATMENT OF TEMPERED CAST IRON, in a flow-through gas tempering furnace, characterized by decarburization by annealing the casting in a flow-through gas tempering furnace at a temperature of 1000 degrees C to 1100 degrees C and keeping them at this temperature until complete decomposition of cementite, then cooled rapidly to 730 degrees C and from this temperature cooled at a cooling rate of 2 degrees C / h to 5 degrees C / h to a temperature of 680 degrees C to 710 degrees C and finally cooled in air to room temperature. The application contains 6 more dependent requests.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT190187A AT391878B (en) | 1987-07-27 | 1987-07-27 | METHOD FOR TREATING TEMPERATURE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| YU142388A YU142388A (en) | 1990-02-28 |
| YU46472B true YU46472B (en) | 1993-10-20 |
Family
ID=3523468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| YU142388A YU46472B (en) | 1987-07-27 | 1988-07-21 | PROCEDURE FOR HEAT TREATMENT OF TEMPERED CAST IRON |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0302049A1 (en) |
| AT (1) | AT391878B (en) |
| BR (1) | BR8803713A (en) |
| HU (1) | HUT50882A (en) |
| PL (1) | PL273903A1 (en) |
| PT (1) | PT88105A (en) |
| YU (1) | YU46472B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2153010C1 (en) * | 1999-05-20 | 2000-07-20 | Балтийский государственный технический университет "Военмех" им.Д.Ф.Устинова | Method of heat treatment of casting from malleable cast iron with chills in its structure |
| CN113403458B (en) * | 2021-06-23 | 2022-03-25 | 唐山鑫业科技有限公司 | White heart malleable cast iron production process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR956234A (en) * | 1950-01-27 | |||
| DE872352C (en) * | 1950-06-03 | 1953-03-30 | Bergische Stahlindustrie | Molded parts made of malleable cast iron, which, regardless of their wall thickness, can be easily welded by fusion welding |
| US3055779A (en) * | 1959-03-16 | 1962-09-25 | Pfaudler Permutit Inc | Method of making enameled ductile iron |
| GB897159A (en) * | 1960-05-23 | 1962-05-23 | Matthias Ludwig | Improvements in and relating to the production of high-grade malleable iron castings |
| FR1526120A (en) * | 1967-04-05 | 1968-05-24 | Renault | Quick annealing malleable iron |
-
1987
- 1987-07-27 AT AT190187A patent/AT391878B/en active
-
1988
- 1988-07-21 YU YU142388A patent/YU46472B/en unknown
- 1988-07-21 HU HU380288A patent/HUT50882A/en unknown
- 1988-07-26 PT PT8810588A patent/PT88105A/en not_active Application Discontinuation
- 1988-07-26 PL PL27390388A patent/PL273903A1/en unknown
- 1988-07-27 EP EP88890197A patent/EP0302049A1/en not_active Withdrawn
- 1988-09-26 BR BR8803713A patent/BR8803713A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR8803713A (en) | 1989-02-14 |
| YU142388A (en) | 1990-02-28 |
| ATA190187A (en) | 1990-06-15 |
| AT391878B (en) | 1990-12-10 |
| EP0302049A1 (en) | 1989-02-01 |
| HUT50882A (en) | 1990-03-28 |
| PT88105A (en) | 1989-06-30 |
| PL273903A1 (en) | 1989-04-17 |
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