CN106222604A - A kind of controlled atmosphere pit carburizing furnace production line and production method thereof - Google Patents
A kind of controlled atmosphere pit carburizing furnace production line and production method thereof Download PDFInfo
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- CN106222604A CN106222604A CN201610791279.9A CN201610791279A CN106222604A CN 106222604 A CN106222604 A CN 106222604A CN 201610791279 A CN201610791279 A CN 201610791279A CN 106222604 A CN106222604 A CN 106222604A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
-
- 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
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Abstract
nullThe invention discloses a kind of controlled atmosphere pit carburizing furnace production line and the production method thereof of heat treatment of workpieces technical field，Including feed mechanism，The bottom discharge mouth of described front cleaning machine is connected with the bottom feed mouth of well formula pre-oxidation furnace by feed mechanism，Well formula high tempering stove and well formula low-temp temper furnace are installed on the left of described rear cleaning machine，Perfect reliable nitrogen protecting system it is furnished with in pit carburizing furnace fire door of the present invention and stove，Once electric fault occurs，Protective gas can not be supplied in time，Safe nitrogen can auto-flushing burner hearth，To eliminate the potential danger of furnace gas blast and to prevent workpiece from aoxidizing，When furnace pressure exceedes preset maximum value，Guarantee equipment is properly functioning，The safety devices of complete equipment have multiple automatic protection and control function，Equipment operation condition instrument touch screen display，Sound can be passed through when production process occurs abnormal、Light warning reminding operator fix a breakdown in time.
Description
Technical field
The present invention relates to heat treatment of workpieces technical field, be specially a kind of controlled atmosphere pit carburizing furnace production line and life thereof
Product method.
Background technology
Heat treatment refers to material in the solid state, by the means heating, being incubated and cool down, to obtain intended tissue and performance
A kind of metal fever processing technique.Metal heat treatmet is one of important process in machine-building, compared with other processing technique,
Heat treatment does not the most change the shape of workpiece and overall chemical composition, but by changing the microscopic structure of inside workpiece, or
Change the chemical composition of surface of the work, give or improve the serviceability of workpiece.It is characterized in improving the inherent quality of workpiece, and
This is generally not what naked eyes can be seen.For making metal works have required mechanical property, physical property and chemical property,
In addition to reasonable selection material and various forming technology, Technology for Heating Processing is the most requisite.Iron and steel is should in mechanical industry
With the widest material, microstructure of iron and steel is complicated, can be controlled by heat treatment, so the heat treatment of iron and steel is metal fever
The main contents processed.It addition, aluminum, copper, magnesium, titanium etc. and alloy thereof also can by heat treatment change its mechanics, physics and
Chemical property, to obtain different serviceabilities.
Traditional when carrying out heat treatment of workpieces, the Carburization Treatment required for different size, need to change different works
Skill requirement, the lowest to the utilization rate of equipment, work efficiency is low, and there will be potential safety hazard in process of production, to this end, we
A kind of controlled atmosphere pit carburizing furnace production line and production method thereof are invented.
Summary of the invention
It is an object of the invention to provide a kind of controlled atmosphere pit carburizing furnace production line and production method thereof, on solving
State the problem that the utilization rate of equipment and installations proposed in background technology is low and there is potential safety hazard.
For achieving the above object, the present invention provides following technical scheme: a kind of controlled atmosphere pit carburizing furnace production line, bag
Including feed mechanism, described feed mechanism left end is provided with front cleaning machine, and the bottom discharge mouth of described front cleaning machine passes through feeder
Structure is connected with the bottom feed mouth of well formula pre-oxidation furnace, and the passing on left of described well formula pre-oxidation furnace pushes away chain mechanism and connect and have well formula
Heating furnace, the left side of described pit furnace connects with the right side of pit carburizing furnace, at the left end discharging of described pit carburizing furnace
Connecting and have well formula leer, be provided with well formula oil-quenching tank on the left of described well formula leer, the right side of described well formula oil-quenching tank leads to
Cross push away chain mechanism connect have rear cleaning machine, well formula high tempering stove and well formula lonneal are installed on the left of described rear cleaning machine
Stove, and well formula high tempering stove is positioned at the top of well formula low-temp temper furnace, connecting on the left of described well formula low-temp temper furnace has air cooling
Roller-way.
Preferably, before described front cleaning machine is double, before cleaning machine, and double, cleaning machine includes that aqueous alkali embathes cleaning
Clean with heat water-spraying.
Preferably, described pit carburizing furnace is at the bottom of by furnace shell, furnace lining, heating system, bottomless ripple horse fluorine, table and material containing
Seat, ripple ventilating duct and bell and promote rotary apparatus composition, wherein furnace shell is connect made by shaped steel and dense steel plate soldering and sealing, furnace lining by
Light-weight refractory goods are built system and are formed, and heating system is led to by the word corrugated of karmalloy filament winding one-tenth, corrugation upper and lower side
Crossing heat-resisting steel nail to fix with foaming building block, Muffle is the heat resisting steel group welding piece of the calorific intensity designs such as air-tightness.
Preferably, described well formula oil-quenching tank is opened by cell body, base, groove lid, stirring system, pressure cooling system, groove lid
Starting system, smoke pumping pipeline, temperature control, electrical control composition.
Preferably, described rear cleaning machine is cleaning machine after three stations, and after three stations, cleaning machine includes that caustic dip, clear water are clear
Wash and dry three flow processs.
Preferably, described air cooling roller-way includes lifting platform, discharging transition bench and air-cooled, and lifting platform, discharging transition bench
Being arranged in order from left to right with air-cooled, air-cooled is provided with two groups of air-coolers by mounting bracket is symmetrical.
Present invention also offers a kind of controlled atmosphere pit carburizing furnace production method, specifically include following steps:
S1: feeding: pending workpiece is put into charging tray by charging requirement by operator, and by user workshop row
The charging tray installed is put on feed mechanism by car, feed mechanism charging tray is transported to front cleaning machine；
S2: clean before workpiece: embathe cleaning and heat water-spraying's cleaning treatment by aqueous alkali at the workpiece within front cleaning machine
After, user's shop traveller it is transferred to well formula pre-oxidation furnace；
S3: pre-oxidation: the workpiece after front cleaning is in well formula pre-oxidation furnace, by partition heating and control, to work
Part carries out pre-oxidation treatment；
S4: heating: the workpiece completing pre-oxidation pushes in pit furnace by pushing away chain mechanism, controls heating-up temperature
400—550℃；
S5: carburizing: after workpiece heat completes, by workpiece transfer to pit carburizing furnace, and is set by electric control system
Put different carburizing times, by Workpiece transfer to well formula leer after completing, the Job readiness before quenching；
S6: quenching: by the workpiece transfer in step S5 to well formula oil-quenching tank, utilize the quenching in well formula oil-quenching tank
Oil circulation cooling system carries out quenching cooling to workpiece；
S7: clean afterwards: the workpiece after quenching cooling is carried out caustic dip, clean water and drying by rear cleaning machine
The process of three flow processs；
S8: tempering: the workpiece through cleaning later is moved in well formula high tempering stove and well formula low-temp temper furnace, by being tempered
Furnace control system adjusting furnace temperature, and tempering furnace control system is made up of thermocouple, temperature control instrument, monitor, controllable silicon etc..
S9: discharging: the workpiece after tempering enters on air cooling roller-way, is first carried out air-cooled by the air-cooler of air-cooled to it,
Enter on lifting platform through discharging transition bench, and from lifting platform, shifted workpiece by user's shop traveller and store.
Preferably, in described step S5, each mechanical action and interlock protection in pit carburizing furnace all pass through intelligence instrument
Interior programmable controller is controlled, and each run action state and equipment alarm information are in intelligence instrument screen display.
Compared with prior art, the invention has the beneficial effects as follows: be furnished with perfect in pit carburizing furnace fire door of the present invention and stove
Reliable nitrogen protecting system, once there is electric fault, protective gas can not be supplied in time, and safe nitrogen can auto-flushing
Burner hearth, to eliminate the potential danger of furnace gas blast and to prevent workpiece from aoxidizing, nitrogen protection device when workpiece is come out of the stove, around fire door
Automatically open up, to eliminate the excessive breaking out of fire of furnace gas and the operator that burn, when furnace pressure exceedes preset maximum value, and furnace pressure is adjusted automatically
Joint system meeting automatically unloading also cuts off fuel gas, it is ensured that equipment is properly functioning, and the harmful exhaust discharged in stove is at air vent certainly
Dynamic lighting is burnouted, and the safety devices of complete equipment have multiple automatic protection and control function, equipment operation condition instrument touch screen
Upper display, can pass through sound when production process occurs abnormal, light warning reminding operator fixes a breakdown in time.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In figure: 1 feed mechanism, cleaning machine, 3 well formula pre-oxidation furnaces, 4 pit furnaces, 5 pit carburizing furnaces, 6 well formulas before 2
Leer, 7 well formula oil-quenching tanks, cleaning machine, 9 well formula high tempering stoves, 10 well formula low-temp temper furnaces, 11 air cooling roller-ways after 8.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme: a kind of controlled atmosphere pit carburizing furnace production line, including on
Material mechanism 1, described feed mechanism 1 left end is provided with front cleaning machine 2, and described front cleaning machine 2 is cleaning machine before double, and duplex
Before position, cleaning machine includes that aqueous alkali embathes cleaning and heat water-spraying cleans, and the bottom discharge mouth of described front cleaning machine 2 passes through feeder
Structure is connected with the bottom feed mouth of well formula pre-oxidation furnace 3, and the passing on left of described well formula pre-oxidation furnace 3 pushes away chain mechanism and connect and have well
Formula heating furnace 4, the left side of described pit furnace 4 connects with the right side of pit carburizing furnace 5, described pit carburizing furnace 5 by furnace shell,
Furnace lining, heating system, bottomless ripple horse fluorine, table and material containing base, ripple ventilating duct and bell and lifting rotary apparatus composition,
Wherein furnace shell is connect made by shaped steel and dense steel plate soldering and sealing, and furnace lining is built system by light-weight refractory goods and formed, and heating system is by high resistance
The word corrugated that nichrome wire is coiled into, corrugation upper and lower side fixed with foaming building block by heat-resisting steel nail, and Muffle is gas
The heat resisting steel group welding piece of the calorific intensity designs such as close property, connects at the left end discharging of described pit carburizing furnace 5 and has well formula leer 6,
Being provided with well formula oil-quenching tank 7 on the left of described well formula leer 6, described well formula oil-quenching tank 7 is by cell body, base, groove lid, stirring system
System, pressure cooling system, groove lid open system, smoke pumping pipeline, temperature control, electrical control composition, described well formula quenching oil
There is rear cleaning machine 8 on the right side of groove 7 by pushing away chain mechanism connection, and described rear cleaning machine 8 is cleaning machine after three stations, clear after three stations
Washing machine includes caustic dip, clean water and three flow processs of drying, is provided with well formula high tempering stove on the left of described rear cleaning machine 8
9 and well formula low-temp temper furnace 10, and well formula high tempering stove 9 is positioned at the top of well formula low-temp temper furnace 10, described well formula low temperature
Connect on the left of tempering furnace 10 and have air cooling roller-way 11, described air cooling roller-way 11 to include lifting platform, discharging transition bench and air-cooled, and rise
Fall platform, discharging transition bench and air-cooled are arranged in order from left to right, air-cooled by mounting bracket symmetrical be provided with two groups cold
Blower fan.
Present invention also offers a kind of controlled atmosphere pit carburizing furnace production method, specifically include following steps:
S1: feeding: pending workpiece is put into charging tray by charging requirement by operator, and by user workshop row
The charging tray installed is put on feed mechanism 1 by car, feed mechanism 1 charging tray is transported to front cleaning machine 2；
S2: clean before workpiece: embathe cleaning and heat water-spraying's cleaning treatment by aqueous alkali at the workpiece within front cleaning machine 2
After, user's shop traveller it is transferred to well formula pre-oxidation furnace 3；
S3: pre-oxidation: the workpiece after front cleaning is in well formula pre-oxidation furnace 3, by partition heating and control, to work
Part carries out pre-oxidation treatment；
S4: heating: the workpiece completing pre-oxidation pushes in pit furnace 4 by pushing away chain mechanism, controls heating-up temperature
400—550℃；
S5: carburizing: after workpiece heat completes, by workpiece transfer to pit carburizing furnace 5, and is set by electric control system
Putting different carburizing times, by Workpiece transfer to well formula leer 6 after completing, the Job readiness before quenching, well formula is oozed
Each mechanical action and interlock protection in carbon stove 5 are all controlled by programmable controller in intelligence instrument, and each operation is moved
Make state and equipment alarm information in intelligence instrument screen display；
S6: quenching: by the workpiece transfer in step S5 to well formula oil-quenching tank 7, utilize quenching in well formula oil-quenching tank 7
Kerosene circulating cooling system carries out quenching cooling to workpiece；
S7: clean afterwards: the workpiece after quenching cooling is carried out caustic dip, clean water and drying by rear cleaning machine 8
The process of three flow processs；
S8: tempering: the workpiece through cleaning later is moved in well formula high tempering stove 9 and well formula low-temp temper furnace 10, by
Tempering furnace control system adjusting furnace temperature, and tempering furnace control system is made up of thermocouple, temperature control instrument, monitor, controllable silicon etc..
S9: discharging: the workpiece after tempering enters on air cooling roller-way 11, first by the air-cooler of air-cooled, it is carried out wind
Cold, enter on lifting platform through discharging transition bench, and from lifting platform, shifted workpiece by user's shop traveller and store.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, the scope of the present invention be defined by the appended.
Claims (8)
1. a controlled atmosphere pit carburizing furnace production line, including feed mechanism (1), it is characterised in that: described feed mechanism (1)
Left end is provided with front cleaning machine (2), and the bottom discharge mouth of described front cleaning machine (2) is by feed mechanism and well formula pre-oxidation furnace
(3) bottom feed mouth connects, and the passing on left of described well formula pre-oxidation furnace (3) pushes away chain mechanism and connect and have pit furnace (4),
The left side of described pit furnace (4) connects with the right side of pit carburizing furnace (5), the left end discharging of described pit carburizing furnace (5)
Place's connection has well formula leer (6), described well formula leer (6) left side to be provided with well formula oil-quenching tank (7), described well formula quenching oil
The right side of groove (7) has rear cleaning machine (8), described rear cleaning machine (8) left side to be provided with well formula high temperature and return by pushing away chain mechanism connection
Stove (9) and well formula low-temp temper furnace (10), and well formula high tempering stove (9) is positioned at the top of well formula low-temp temper furnace (10),
Described well formula low-temp temper furnace (10) left side connects air cooling roller-way (11).
A kind of controlled atmosphere pit carburizing furnace production line the most according to claim 1, it is characterised in that: described front cleaning machine
(2) it is that before cleaning machine, and double, cleaning machine includes that aqueous alkali embathes cleaning and heat water-spraying cleans before double.
A kind of controlled atmosphere pit carburizing furnace production line the most according to claim 1, it is characterised in that: described well formula carburizing
Stove (5) is by furnace shell, furnace lining, heating system, bottomless ripple horse fluorine, table and material containing base, ripple ventilating duct and bell and lifting
Rotary apparatus forms, and wherein furnace shell is connect made by shaped steel and dense steel plate soldering and sealing, and furnace lining is built system by light-weight refractory goods and formed, heating
System is by the word corrugated of karmalloy filament winding one-tenth, and corrugation upper and lower side is solid with foaming building block by heat-resisting steel nail
Fixed, Muffle is the heat resisting steel group welding piece of the calorific intensity designs such as air-tightness.
A kind of controlled atmosphere pit carburizing furnace production line the most according to claim 1, it is characterised in that: described well formula quenches
Oil groove (7) is by cell body, base, groove lid, stirring system, pressure cooling system, groove lid open system, smoke pumping pipeline, temperature control
System, electrical control composition.
A kind of controlled atmosphere pit carburizing furnace production line the most according to claim 1, it is characterised in that: described rear cleaning machine
(8) being cleaning machine after three stations, after three stations, cleaning machine includes caustic dip, clean water and three flow processs of drying.
A kind of controlled atmosphere pit carburizing furnace production line the most according to claim 1, it is characterised in that: described air cooling roller-way
(11) include lifting platform, discharging transition bench and air-cooled, and lifting platform, discharging transition bench and air-cooled arrange the most successively
Row, air-cooled is provided with two groups of air-coolers by mounting bracket is symmetrical.
7. one kind uses a kind of controlled atmosphere pit carburizing furnace production method as claimed in claim 1, it is characterised in that: concrete
Comprise the following steps:
S1: feeding: pending workpiece is put into charging tray by charging requirement by operator, and will by user's shop traveller
The charging tray installed is put on feed mechanism (1), feed mechanism (1) charging tray is transported to front cleaning machine (2)；
S2: clean before workpiece: the workpiece internal at front cleaning machine (2) embathes cleaning and heat water-spraying's cleaning treatment by aqueous alkali
After, user's shop traveller it is transferred to well formula pre-oxidation furnace (3)；
S3: pre-oxidation: the workpiece after front cleaning is in well formula pre-oxidation furnace (3), by partition heating and control, to workpiece
Carry out pre-oxidation treatment；
S4: heating: the workpiece completing pre-oxidation pushes in pit furnace (4) by pushing away chain mechanism, controls heating-up temperature
400—550℃；
S5: carburizing: after workpiece heat completes, workpiece transfer to pit carburizing furnace (5) is interior, and arranged by electric control system
Different carburizing times, by Workpiece transfer to well formula leer (6) after completing, the Job readiness before quenching；
S6: quenching: by the workpiece transfer in step S5 to well formula oil-quenching tank (7), utilize quenching in well formula oil-quenching tank (7)
Kerosene circulating cooling system carries out quenching cooling to workpiece；
S7: clean afterwards: the workpiece after quenching cooling is carried out caustic dip, clean water and drying by rear cleaning machine (8)
The process of three flow processs；
S8: tempering: the workpiece through cleaning later is moved in well formula high tempering stove (9) and well formula low-temp temper furnace (10), by
Tempering furnace control system adjusting furnace temperature, and tempering furnace control system is made up of thermocouple, temperature control instrument, monitor, controllable silicon etc..
S9: discharging: the workpiece after tempering enters on air cooling roller-way (11), is first carried out air-cooled by the air-cooler of air-cooled to it,
Enter on lifting platform through discharging transition bench, and from lifting platform, shifted workpiece by user's shop traveller and store.
A kind of controlled atmosphere pit carburizing furnace production method the most according to claim 7, it is characterised in that: described step S5
In, each mechanical action and interlock protection in pit carburizing furnace (5) are all controlled by programmable controller in intelligence instrument
System, each run action state and equipment alarm information are in intelligence instrument screen display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610791279.9A CN106222604A (en) | 2016-08-30 | 2016-08-30 | A kind of controlled atmosphere pit carburizing furnace production line and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610791279.9A CN106222604A (en) | 2016-08-30 | 2016-08-30 | A kind of controlled atmosphere pit carburizing furnace production line and production method thereof |
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| CN106222604A true CN106222604A (en) | 2016-12-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699633A (en) * | 2019-11-27 | 2020-01-17 | 特诺恩技术（天津）有限公司 | Charging and discharging method of annular rotary-bottom type gas carburizing furnace for gear carburizing heat treatment |
| CN113293264A (en) * | 2020-02-24 | 2021-08-24 | 重庆欣天利智能重工有限公司 | Automatic control equipment and method for continuous cycle quenching and tempering |
| CN115369353A (en) * | 2022-08-30 | 2022-11-22 | 爱协林热处理系统(北京)有限公司 | Workpiece carburizing production line with quenching and slow cooling functions and workpiece heat treatment method |
| CN117867442A (en) * | 2024-02-28 | 2024-04-12 | 温岭市恒誉工业电炉有限公司 | Double-row fuel gas pushing disc type controlled atmosphere carburizing and quenching method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699633A (en) * | 2019-11-27 | 2020-01-17 | 特诺恩技术（天津）有限公司 | Charging and discharging method of annular rotary-bottom type gas carburizing furnace for gear carburizing heat treatment |
| CN113293264A (en) * | 2020-02-24 | 2021-08-24 | 重庆欣天利智能重工有限公司 | Automatic control equipment and method for continuous cycle quenching and tempering |
| CN115369353A (en) * | 2022-08-30 | 2022-11-22 | 爱协林热处理系统(北京)有限公司 | Workpiece carburizing production line with quenching and slow cooling functions and workpiece heat treatment method |
| CN117867442A (en) * | 2024-02-28 | 2024-04-12 | 温岭市恒誉工业电炉有限公司 | Double-row fuel gas pushing disc type controlled atmosphere carburizing and quenching method |
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Application publication date: 20161214 |
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| RJ01 | Rejection of invention patent application after publication |