WO1990007583A1 - Installations automatiques de traitement thermique - Google Patents
Installations automatiques de traitement thermique Download PDFInfo
- Publication number
- WO1990007583A1 WO1990007583A1 PCT/FR1989/000675 FR8900675W WO9007583A1 WO 1990007583 A1 WO1990007583 A1 WO 1990007583A1 FR 8900675 W FR8900675 W FR 8900675W WO 9007583 A1 WO9007583 A1 WO 9007583A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- treatment
- temperature
- parts
- order
- heating
- Prior art date
Links
- 238000009434 installation Methods 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000011282 treatment Methods 0.000 claims description 41
- 238000000137 annealing Methods 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 claims description 13
- 229910001566 austenite Inorganic materials 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007872 degassing Methods 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000005238 degreasing Methods 0.000 claims description 2
- 238000000265 homogenisation Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000005496 tempering Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000010583 slow cooling Methods 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
- C21D11/00—Process control or regulation for heat treatments
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
-
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
Definitions
- the present invention relates to a heat treatment system for parts of any shape, preferably parts for the mechanical industry such as in particular parts for the automotive industry.
- French patent 87 13 217 filed on September 24, 1987 by the present holder also describes an automatic installation of fast thermochemical treatment of a load made up of parts intended in particular for the mechanical industry, which includes a plurality of treatment modules such as in particular induction preheating module, thermochemical processing modules, quenching module, a means for loading and unloading of the pieces stacked in columns and a means for transferring said columns of pieces between the different processing modules.
- treatment modules such as in particular induction preheating module, thermochemical processing modules, quenching module, a means for loading and unloading of the pieces stacked in columns and a means for transferring said columns of pieces between the different processing modules.
- the present invention proposes to apply the installations described above to treatments of parts in particular of mechanical parts, with a view to obtaining the results mentioned above, these treatments being characterized by the following operations: heating , temperature maintenance and controlled cooling.
- This treatment may include degassing. Indeed, even if the surface of the product is free of deposits, it may contain adsorbed gaseous species and by raising the temperature, placing under vacuum and maintaining under vacuum for a sufficient time, it is possible to impartially reduce the content of these gaseous species in the product finally obtained;
- Degreasing can also be carried out, which can be carried out by means of rapid heating under a gaseous stream of hydrogen and water vapor.
- the treatments relating to the maintenance of the surface condition of the treated parts may include other operations such as blueing, etc.
- the invention therefore proposes to carry out operations which make it possible to avoid these drawbacks in order to maintain the dimensional stability of the parts treated.
- These treatments can be as follows:
- This treatment essentially comprises a softening annealing.
- the different types of treatment which have just been mentioned in order to maintain the quality of the products which are to be or have undergone heat treatment essentially comprise three types of operation: heating, temperature maintenance and controlled cooling, which, according to the invention, are carried out on an installation of the type described in the patent applications cited above.
- the heating necessary for annealing or tempering can be carried out in the induction heating chambers provided in these installations or in one or more treatment chambers in the case of specific temperature cycles.
- thermochemical treatment chambers if the maintenance takes place at a temperature at which the ferrite is transformed into austenite during heating
- the cooling can be carried out either in the quenching chamber, or by convection, by radiation alone or using a neutral gas at a suitable temperature or by any other suitable means.
- thermochemical treatment When the treatment is preliminary or consecutive to the thermochemical treatment, it can be carried out directly and automatically in the installation without it being necessary to carry out a removal of the parts from the latter.
- all of the processing is carried out automatically using appropriate software, the automaton thus programmed managing the following cycles:
- the invention makes it possible to simultaneously carry out, using the same installation and alternatively, carburizing treatments (appropriate temperature and atmosphere), annealing and / or degreasing-degassing, the management of the installation managing two or more different cycles.
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)
- Furnace Details (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019900701898A KR910700358A (ko) | 1988-12-27 | 1989-12-22 | 개선된 자동 열처리 플랜트 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8817245A FR2640999A1 (enrdf_load_stackoverflow) | 1988-12-27 | 1988-12-27 | |
| FR88/17245 | 1988-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1990007583A1 true WO1990007583A1 (fr) | 1990-07-12 |
Family
ID=9373471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1989/000675 WO1990007583A1 (fr) | 1988-12-27 | 1989-12-22 | Installations automatiques de traitement thermique |
Country Status (11)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100349809B1 (ko) * | 2000-03-15 | 2002-08-23 | (주)현광금속개발 | 금속재의 열처리방법 |
| CN106148653A (zh) * | 2016-08-31 | 2016-11-23 | 成都真火科技有限公司 | 一种材料热处理系统 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2355261A1 (fr) * | 1976-06-17 | 1978-01-13 | Daido Steel Co Ltd | Four continu a atmosphere controlee et procede de traitement thermique |
| FR2537260A1 (fr) * | 1982-12-02 | 1984-06-08 | Traitement Sous Vide | Four multicellulaire pour le traitement thermique, thermochimique ou electrothermique de metaux sous atmosphere rarefiee |
| EP0209408A1 (fr) * | 1985-06-25 | 1987-01-21 | Stein Heurtey | Installation de traitements thermochimiques à températures et atmosphères différentes, notamment pour l'industrie automobile |
| EP0236639A1 (fr) * | 1986-02-12 | 1987-09-16 | Stein Heurtey | Installation flexible automatisée de traitement thermochimique rapide |
| EP0296102B1 (fr) * | 1987-06-03 | 1993-05-05 | Pierre Beuret | Installation à plusieurs éléments pour des traitements thermiques |
-
1988
- 1988-12-27 FR FR8817245A patent/FR2640999A1/fr active Pending
-
1989
- 1989-12-06 CA CA002004761A patent/CA2004761A1/fr not_active Abandoned
- 1989-12-22 KR KR1019900701898A patent/KR910700358A/ko not_active Withdrawn
- 1989-12-22 DD DD89336256A patent/DD290665A5/de not_active IP Right Cessation
- 1989-12-22 ES ES89403635T patent/ES2016785A4/es active Pending
- 1989-12-22 EP EP89403635A patent/EP0376832A1/fr not_active Withdrawn
- 1989-12-22 WO PCT/FR1989/000675 patent/WO1990007583A1/fr unknown
- 1989-12-22 JP JP2501754A patent/JPH03503187A/ja active Pending
- 1989-12-22 DE DE198989403635T patent/DE376832T1/de active Pending
- 1989-12-26 CN CN89109569A patent/CN1043958A/zh active Pending
-
1991
- 1991-09-27 GR GR90300153T patent/GR900300153T1/el unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2355261A1 (fr) * | 1976-06-17 | 1978-01-13 | Daido Steel Co Ltd | Four continu a atmosphere controlee et procede de traitement thermique |
| FR2537260A1 (fr) * | 1982-12-02 | 1984-06-08 | Traitement Sous Vide | Four multicellulaire pour le traitement thermique, thermochimique ou electrothermique de metaux sous atmosphere rarefiee |
| EP0209408A1 (fr) * | 1985-06-25 | 1987-01-21 | Stein Heurtey | Installation de traitements thermochimiques à températures et atmosphères différentes, notamment pour l'industrie automobile |
| EP0236639A1 (fr) * | 1986-02-12 | 1987-09-16 | Stein Heurtey | Installation flexible automatisée de traitement thermochimique rapide |
| EP0296102B1 (fr) * | 1987-06-03 | 1993-05-05 | Pierre Beuret | Installation à plusieurs éléments pour des traitements thermiques |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2640999A1 (enrdf_load_stackoverflow) | 1990-06-29 |
| EP0376832A1 (fr) | 1990-07-04 |
| ES2016785A4 (es) | 1990-12-01 |
| KR910700358A (ko) | 1991-03-14 |
| GR900300153T1 (en) | 1991-09-27 |
| CN1043958A (zh) | 1990-07-18 |
| DE376832T1 (de) | 1991-01-17 |
| CA2004761A1 (fr) | 1990-06-27 |
| JPH03503187A (ja) | 1991-07-18 |
| DD290665A5 (de) | 1991-06-06 |
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