CN103602944A - Thermal treatment furnace and thermal treatment technology thereof for super-huge type multifunctional natural gas energy-saving part - Google Patents
Thermal treatment furnace and thermal treatment technology thereof for super-huge type multifunctional natural gas energy-saving part Download PDFInfo
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Abstract
The invention discloses a thermal treatment furnace and a thermal treatment technology thereof for a super-huge type multifunctional natural gas energy-saving part. The thermal treatment furnace is characterized by comprising a feeding module, a permeating module, a cooling module, a cleaning module, a tempering module and a discharging module, which are connected in sequence in the transverse direction, wherein all the modules are provided with conveying devices, and a mobile door (1) is arranged between every two adjacent modules; both the cooling module and the cleaning module comprise containing layers (2), functional layers (3) and lifting layers (4) for bringing the part down to the functional layers (3) and lifting the part to the containing layers (2); the lengths, the widths and the heights of both the containing layers (2) and the functional layers (3) are the same; the containing layers (2) are as high as the feeding module, the permeating module, the tempering module and the discharging module and are horizontally connected with the feeding module, the permeating module, the tempering module and the discharging module. The thermal treatment furnace for the super-huge type multifunctional natural gas energy-saving part has the characteristics of full-closed mode, modularization, full automation, safety, zero pollution, energy conservation, zero emission and the like.
Description
Technical field
The present invention relates to a kind of super-huge multifunctional natural gas energy-saving part heat treatment furnace and thermal treatment process thereof, relate in particular to a kind of closed, modularization, full-automatic part heated by natural gas formula stove and thermal treatment process thereof.
Background technology
Existing part heat treatment furnace is generally well formula gas cementation vacuum oven, nitriding furnace, and when cooling, product need first hang out stove and enter refrigerating module outward again, and product hangs out in the process outside stove that product surface is oxidizable, decarburization, form non-horse, product is yielding, and oil is easily on fire, has certain potential safety hazard; In addition, existing part heat treatment furnace function singleness, can only carry out carburizing, nitriding, carbonitriding and maybe can only carry out that metallic cementation maybe can only carry out boronising, oozes tungsten, boron tungsten oozes altogether, can not be according to different choice different process and the Heating temperature of penetration enhancer, thus the various functions such as realize a part heat treatment furnace possesses modified, carburizing, nitriding, carbonitriding, metallic cementation, boronising simultaneously, ooze tungsten, boron tungsten oozes altogether; Moreover existing part heat treatment furnace general requirements is less, the overall dimension of parts processed is diameter of part 0.6m, length 6m; The problems such as finally, existing part heat treatment furnace exists level of automation Di， workshop section poor continuity, and electrically heated energy utilization rate is low, the large contaminate environment of discharge amount of exhaust gas.
Super-huge multifunctional natural gas energy-saving part heat treatment furnace of the present invention adopts totally enclosed, modularization, full automatic design, osmosis process needn't be come out of the stove, avoided the problems such as atmospheric oxidation, decarburization, distortion, when cooling, oil also can not spill, and guarantees quality product and processing safety; In addition, the present invention is multifunctional type part heat treatment furnace, possesses carburizing, nitriding, carbonitriding, metallic cementation, boronising simultaneously, oozes tungsten and boron tungsten oozes function altogether, according to different parts, selects different process, i.e. the part that the present invention can thermal treatment unlike material; Moreover the present invention is super-huge part heat treatment furnace, can carry out the thermal treatment of heavy parts (diameter 1m, length 8m); Finally, the present invention uses Sweet natural gas for thermal source, has replaced traditional Electric heating, and energy-conservation 35% and zero release, environmental protection, self-circulation and neat, attractive in appearance, the convenient operation of workshop discharge.
Summary of the invention
Technical problem to be solved by this invention is, adopts natural-gas energy-saving automatic production line, and super-huge multifunctional natural gas energy-saving part heat treatment furnace and the thermal treatment process thereof of a kind of totally enclosed, modularization, full-automation, safety non-pollution is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of super-huge multifunctional natural gas energy-saving part heat treatment furnace, it is characterized in that: comprising: the feed module laterally connecting successively, infiltration module, refrigerating module, cleaning module, tempering module and material discharging module, each module is provided with between transport unit and adjacent block and is provided with sliding door, described refrigerating module and described cleaning module include accommodating layer, functional layer and for the part that declines to described functional layer and hold up part to the lifting device of described accommodating layer, described accommodating layer and described functional layer length and width height all equate, described accommodating layer and described feed module, infiltration module, contour and the level connection joint of tempering module and material discharging module,
Each module has following functions:
Feed module: for the storage of part, clean and dry, be sent to infiltration module after being dried;
Infiltration module: be anti-seepage heat insulating module, support is carried out modified, carburizing, nitriding, carbonitriding, is oozed tungsten, boronising, tungsten boron co-diffusion and metallic cementation part, according to the part of unlike material, select different penetration enhancers and Heating temperature, after having permeated, be sent to refrigerating module;
Refrigerating module: for cooling fast of part, heat-eliminating medium is cooling oil or air or liquid nitrogen, and the hardness of cooling rear part, erosion resistance and wear resistance are improved, is sent to cleaning module by part after cooling; Described refrigerating module is provided with for guaranteeing the internal recycle refrigerating unit that coolant temperature is constant and making the cooling uniform whipping appts of part for stirring heat-eliminating medium;
Cleaning module: for washing away heat-eliminating medium and the impurity on part, cleaning medium is water, is sent to tempering module after having cleaned;
Tempering module: comprise for the first tempering module of the once heating of part and for the second tempering module of the second-heating of part, make hardness, wear resistance and the resistance to fatigue of part be greatly improved after tempering, be sent to material discharging module after completing;
Material discharging module: for the storage of part, clean, dry and polishing, obtain finished product.
Described infiltration module is provided with for the first variable valve of adjusting air inflow quantity and the second variable valve, some heating units, for sealing the tightness system of sliding door, for guaranteeing the blowing device of penetration enhancer atmosphere convection current, for controlling monitoring device and the vent valve of penetration enhancer concentration, described infiltration block length is greater than 8m, width is greater than 6m, is highly greater than 1m.
The heating source of described heating unit is Sweet natural gas, and heating unit is upper and lower two-layerly evenly arranges, and described tightness system is Sweet natural gas pneumostop door, the Sweet natural gas gas of sealing up a door, and described monitoring device is oxygen probe, carbon control instrument and nitrogen control instrument.
The functional layer of described refrigerating module is filled heat-eliminating medium, heat-eliminating medium is cooling oil or air or liquid nitrogen, described refrigerating module is provided with for guaranteeing the internal recycle refrigerating unit that coolant temperature is constant and making the cooling uniform whipping appts of part for stirring heat-eliminating medium, described refrigerating module length is greater than 8m, width is greater than 6m, is highly greater than 2m.
The functional layer of described cleaning module is water layer, and described cleaning module length is greater than 8m, and width is greater than 6m, is highly greater than 2m.
Described tempering module comprises that described tempering block length is greater than 8m for the first tempering module of once heating with for the second tempering module of second-heating, and width is greater than 13m, is highly greater than 1m.
Described feed module is provided with up and down some heated by natural gas pipes of evenly arranging and for the cleaning device of the decontamination that eliminates rust, described feed module length is greater than 8m, and width is greater than 5.5m, is highly greater than 1m.
Described material discharging module is provided with up and down some heated by natural gas pipes of evenly arranging and for making the burnishing device that piece surface is bright and clean, described material discharging module length is greater than 8m, and width is greater than 5.5m, is highly greater than 1m.
Described part heat treatment furnace also comprises Controlling System, described Controlling System is Sweet natural gas full automatic control security system, described Controlling System comprises that computer, PLC and thereof using PID regulate the monitoring instrument of controlling, and described monitoring instrument shows stove interior carbon hot temperature degree, pressure and heat color and supports the setting of 199 kinds of processing parameters.
A carburizing heat treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
41) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
42) carburizing: this step comprises intensification, forced-ventilated, oozes by force, diffusion, cooling and isothermal step; Intensification 4h is incubated after reaching 900 ~ 940 ℃, after exhaust 50 ~ 70min, ooze by force, strong infiltration rate degree is 0.30 ~ 0.34mm/h, and the time of oozing is 7.5 ~ 8.75h by force, and carburizing agent is propane and methane, infiltration is guaranteed the convection current of carbon atmosphere in module and is used oxygen probe and carbon control instrument is effectively controlled carbon concentration, ooze by force rear diffusion 2.8 ~ 3.3h, after having spread, be cooled to 860 ~ 900 ℃, be incubated at least 1h, obtain the part that depth of case reaches 2.4 ~ 2.8mm, after being incubated, deliver to refrigerating module;
43) carry out successively cooling, cleaning, tempering and discharging technology, this carburizing heat treatment process has improved carburizing speed in the selection of controlling furnace pressure and penetration enhancer, than the speed of conventional pit furnace carburizing, improves more than 30%.
A nitriding heat treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
51) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
52) nitriding: this step comprises intensification, forced-ventilated, nitriding and diffusing step; Intensification 3h is incubated after reaching 580 ~ 650 ℃, after exhaust 50 ~ 70min, carry out nitriding, nitriding speed is 0.01mm/h, nitriding time is 60h, nitriding medium is ammonia, infiltration guarantees nitrogen atmosphere convection current in module and uses oxygen probe and nitrogen control instrument is effectively controlled nitrogen concentration, and after nitriding completes, diffusion 2h, delivers to refrigerating module after having spread;
53) carry out successively cooling, cleaning, tempering and discharging technology, when cooling, adopt the cooling or cooled with liquid nitrogen of cooling oil, be cooled to 180 ~ 230 ℃, this nitriding heat treatment process has improved nitriding speed in the selection of controlling furnace pressure and penetration enhancer, reduced nitriding time, than the speed of conventional pit furnace carburizing, improved more than 30%.
A quenching-and-tempering process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
61) heating: part is sent to infiltration module, according to the part of unlike material, select different heating temperature, material is that the part Heating temperature of Medium Alloy Steel is 860 ~ 900 ℃, and the part Heating temperature that material is high quality steel is 830 ~ 860 ℃, after being incubated, enters refrigerating module;
62) cooling: according to the part of unlike material, to select different cooling temperatures, material is that the part of Medium Alloy Steel need guarantee that cooling oil temperature is controlled in 90 ℃, material is that the part of high quality steel need guarantee that cooling oil temperature is controlled in 50 ℃, be 3mm/ second cooling time, enters tempering module after cooling completing;
63) tempering: select different times of tempering according to the different purposes of part, carbon steel and steel alloy part are carried out to a tempering, die steel part is carried out to double tempering;
64) discharging: enter material discharging module, spray and stoving process, to remove temper brittleness district, guarantee the hardness of the part after modified.
Super-huge multifunctional natural gas energy-saving part heat treatment furnace ooze a tungsten thermal treatment process, it is characterized in that: comprise following processing step:
71) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
72) ooze tungsten: this step comprises intensification and oozes tungsten step; Intensification 5h is incubated after reaching 1000 ~ 1100 ℃, oozes tungsten, and oozing tungsten speed is 0.01mm/h, and oozing the tungsten time is 10 ~ 60h, and oozing tungsten agent is tungsten rod, and tungsten rod is arranged in parallel within to furnace bottom, and external ion glow unit oozes after tungsten completes and delivers to refrigerating module;
73) carry out successively cooling, cleaning, tempering and discharging technology, the type of cooling is air cooling.
A boronising thermal treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
81) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
82) boronising: this step comprises intensification and boronising step; Intensification 5h is incubated after reaching 950 ~ 1050 ℃, carries out boronising, and boriding rate is 0.03mm/h, and the boronising time is 10 ~ 30h, and boronizing agent is borax, and borax is evenly distributed on to furnace bottom, after boronising completes, delivers to refrigerating module;
83) carry out successively cooling, cleaning, tempering and discharging technology, the type of cooling is air cooling.
Super-huge multifunctional natural gas energy-saving part heat treatment furnace provided by the invention, adopt totally enclosed modular design and be equipped with monitoring in real time, the Controlling System of analyzing, realized the increasingly automated of part heat treatment furnace, guarantee workshop section's continuity, security and quality product, osmosis process needn't be come out of the stove, avoided atmospheric oxidation, decarburization, the problems such as distortion, oil also can not spill, guarantee the security of operation, in addition, heating source is Sweet natural gas, the internal recycle refrigerating unit of refrigerating module makes capacity usage ratio high, this super-huge multifunctional natural gas energy-saving part heat treatment furnace energy-conservation 35%, environmental protection, zero release, self-circulation and workshop discharge are neat, attractive in appearance, convenient operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment 1:
As shown in Figure 1, a kind of super-huge multifunctional natural gas energy-saving part heat treatment furnace, it is characterized in that: comprising: the feed module laterally connecting successively, infiltration module, refrigerating module, cleaning module, tempering module and material discharging module, each module is provided with and between transport unit and adjacent block, is provided with sliding door 1, described refrigerating module and described cleaning module include accommodating layer 2, functional layer 3 and for the part that declines to described functional layer 3 and hold up part to the lifting device 4 of described accommodating layer 2, described accommodating layer 2 and described functional layer 3 length and width height all equate, described accommodating layer 2 and described feed module, infiltration module, contour and the level connection joint of tempering module and material discharging module,
Each module has following functions:
Feed module: for the storage of part, clean and dry, be sent to infiltration module after being dried;
Infiltration module: be anti-seepage heat insulating module, support is carried out modified, carburizing, nitriding, carbonitriding, is oozed tungsten, boronising, tungsten boron co-diffusion and metallic cementation part, according to the part of unlike material, select different penetration enhancers and Heating temperature, after having permeated, be sent to refrigerating module;
Refrigerating module: for cooling fast of part, heat-eliminating medium is cooling oil or air or liquid nitrogen, and the hardness of cooling rear part, erosion resistance and wear resistance are improved, is sent to cleaning module by part after cooling; Described refrigerating module is provided with for guaranteeing the internal recycle refrigerating unit that coolant temperature is constant and making the cooling uniform whipping appts of part for stirring heat-eliminating medium;
Cleaning module: for washing away heat-eliminating medium and the impurity on part, cleaning medium is water, is sent to tempering module after having cleaned;
Tempering module: comprise for the first tempering module 7 of the once heating of part and for the second tempering module 8 of the second-heating of part, make hardness, wear resistance and the resistance to fatigue of part be greatly improved after tempering, be sent to material discharging module after completing;
Material discharging module: for the storage of part, clean, dry and polishing, obtain finished product.
Described infiltration module is provided with for the first variable valve 5 of adjusting air inflow quantity and the second variable valve 6, some heating units, for sealing the tightness system of sliding door 1, for guaranteeing the blowing device of penetration enhancer atmosphere convection current, for controlling monitoring device and the vent valve of penetration enhancer concentration.
The heating source of described heating unit is Sweet natural gas, and heating unit is upper and lower two-layerly evenly arranges, and described tightness system is Sweet natural gas pneumostop door, the Sweet natural gas gas of sealing up a door, and described monitoring device is oxygen probe, carbon control instrument and nitrogen control instrument.
A carburizing heat treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
41) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
42) carburizing: this step comprises intensification, forced-ventilated, oozes by force, diffusion, cooling and isothermal step; Intensification 4h is incubated after reaching 900 ℃, after exhaust 50min, ooze by force, strong infiltration rate degree is 0.30mm/h, and the time of oozing is 7.5h by force, and carburizing agent is propane and methane, infiltration is guaranteed the convection current of carbon atmosphere in module and is used oxygen probe and carbon control instrument is effectively controlled carbon concentration, ooze by force rear diffusion 2.8h, after having spread, be cooled to 860 ℃, be incubated at least 1h, obtain depth of case and reach 2.4 part, after being incubated, deliver to refrigerating module;
43) carry out successively cooling, cleaning, tempering and discharging technology, this carburizing heat treatment process has improved carburizing speed in the selection of controlling furnace pressure and penetration enhancer, than the speed of conventional pit furnace carburizing, improves more than 30%.
A nitriding heat treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
51) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
52) nitriding: this step comprises intensification, forced-ventilated, nitriding and diffusing step; Intensification 3h is incubated after reaching 580 ℃, after exhaust 50min, carry out nitriding, nitriding speed is 0.01mm/h, nitriding time is 60h, nitriding medium is ammonia, infiltration guarantees nitrogen atmosphere convection current in module and uses oxygen probe and nitrogen control instrument is effectively controlled nitrogen concentration, and after nitriding completes, diffusion 2h, delivers to refrigerating module after having spread;
53) carry out successively cooling, cleaning, tempering and discharging technology, when cooling, adopt the cooling or cooled with liquid nitrogen of cooling oil, be cooled to 180 ℃, this nitriding heat treatment process has improved nitriding speed in the selection of controlling furnace pressure and penetration enhancer, reduced nitriding time, than the speed of conventional pit furnace carburizing, improved more than 30%.
A quenching-and-tempering process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
61) heating: part is sent to infiltration module, according to the part of unlike material, select different heating temperature, material is that the part Heating temperature of Medium Alloy Steel is 860 ℃, and the part Heating temperature that material is high quality steel is 830 ℃, after being incubated, enters refrigerating module;
62) cooling: according to the part of unlike material, to select different cooling temperatures, material is that the part of Medium Alloy Steel need guarantee that cooling oil temperature is controlled in 90 ℃, material is that the part of high quality steel need guarantee that cooling oil temperature is controlled in 50 ℃, be 3mm/ second cooling time, enters tempering module after cooling completing;
63) tempering: select different times of tempering according to the different purposes of part, carbon steel and steel alloy part are carried out to a tempering, die steel part is carried out to double tempering;
64) discharging: enter material discharging module, spray and stoving process, to remove temper brittleness district, guarantee the hardness of the part after modified.
Super-huge multifunctional natural gas energy-saving part heat treatment furnace ooze a tungsten thermal treatment process, it is characterized in that: comprise following processing step:
71) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
72) ooze tungsten: this step comprises intensification and oozes tungsten step; Intensification 5h is incubated after reaching 1000 ℃, oozes tungsten, and oozing tungsten speed is 0.01mm/h, and the time is 10h, and oozing tungsten agent is tungsten rod, and tungsten rod is arranged in parallel within to furnace bottom, and external ion glow unit oozes after tungsten completes and delivers to refrigerating module;
73) carry out successively cooling, cleaning, tempering and discharging technology, the type of cooling is air cooling.
A boronising thermal treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
81) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
82) boronising: this step comprises intensification and boronising step; Intensification 5h is incubated after reaching 950 ℃, carries out boronising, and boriding rate is 0.03mm/h, and the time is 10h, and boronizing agent is borax, and borax is evenly distributed on to furnace bottom, after boronising completes, delivers to refrigerating module;
83) carry out successively cooling, cleaning, tempering and discharging technology, the type of cooling is air cooling.
Embodiment 2:
As shown in Figure 1, a kind of super-huge multifunctional natural gas energy-saving part heat treatment furnace, it is characterized in that: comprising: the feed module laterally connecting successively, infiltration module, refrigerating module, cleaning module, tempering module and material discharging module, each module is provided with and between transport unit and adjacent block, is provided with sliding door 1, described refrigerating module and described cleaning module include accommodating layer 2, functional layer 3 and for the part that declines to described functional layer 3 and hold up part to the lifting device 4 of described accommodating layer 2, described accommodating layer 2 and described functional layer 3 length and width height all equate, described accommodating layer 2 and described feed module, infiltration module, contour and the level connection joint of tempering module and material discharging module,
Each module has following functions:
Feed module: for the storage of part, clean and dry, be sent to infiltration module after being dried;
Infiltration module: be anti-seepage heat insulating module, support is carried out modified, carburizing, nitriding, carbonitriding, is oozed tungsten, boronising, tungsten boron co-diffusion and metallic cementation part, according to the part of unlike material, select different penetration enhancers and Heating temperature, after having permeated, be sent to refrigerating module;
Refrigerating module: for cooling fast of part, heat-eliminating medium is cooling oil or air or liquid nitrogen, and the hardness of cooling rear part, erosion resistance and wear resistance are improved, is sent to cleaning module by part after cooling; Described refrigerating module is provided with for guaranteeing the internal recycle refrigerating unit that coolant temperature is constant and making the cooling uniform whipping appts of part for stirring heat-eliminating medium;
Cleaning module: for washing away heat-eliminating medium and the impurity on part, cleaning medium is water, is sent to tempering module after having cleaned;
Tempering module: comprise for the first tempering module 7 of the once heating of part and for the second tempering module 8 of the second-heating of part, make hardness, wear resistance and the resistance to fatigue of part be greatly improved after tempering, be sent to material discharging module after completing;
Material discharging module: for the storage of part, clean, dry and polishing, obtain finished product.
Described infiltration module is provided with for the first variable valve 5 of adjusting air inflow quantity and the second variable valve 6, some heating units, for sealing the tightness system of sliding door 1, for guaranteeing the blowing device of penetration enhancer atmosphere convection current, for controlling monitoring device and the vent valve of penetration enhancer concentration.
The heating source of described heating unit is Sweet natural gas, and heating unit is upper and lower two-layerly evenly arranges, and described tightness system is Sweet natural gas pneumostop door, the Sweet natural gas gas of sealing up a door, and described monitoring device is oxygen probe, carbon control instrument and nitrogen control instrument.
A carburizing heat treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
41) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
42) carburizing: this step comprises intensification, forced-ventilated, oozes by force, diffusion, cooling and isothermal step; Intensification 4h is incubated after reaching 940 ℃, after exhaust 70min, ooze by force, strong infiltration rate degree is 0.34mm/h, and the time of oozing is 8.75h by force, and carburizing agent is propane and methane, infiltration is guaranteed the convection current of carbon atmosphere in module and is used oxygen probe and carbon control instrument is effectively controlled carbon concentration, ooze by force rear diffusion 3.3h, after having spread, be cooled to 900 ℃, be incubated at least 1h, obtain the part that depth of case reaches 2.8mm, after being incubated, deliver to refrigerating module;
43) carry out successively cooling, cleaning, tempering and discharging technology, this carburizing heat treatment process has improved carburizing speed in the selection of controlling furnace pressure and penetration enhancer, than the speed of conventional pit furnace carburizing, improves more than 30%.
A nitriding heat treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
51) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
52) nitriding: this step comprises intensification, forced-ventilated, nitriding and diffusing step; Intensification 3h is incubated after reaching 650 ℃, after exhaust 70min, carry out nitriding, nitriding speed is 0.01mm/h, nitriding time is 60h, nitriding medium is ammonia, infiltration guarantees nitrogen atmosphere convection current in module and uses oxygen probe and nitrogen control instrument is effectively controlled nitrogen concentration, and after nitriding completes, diffusion 2h, delivers to refrigerating module after having spread;
53) carry out successively cooling, cleaning, tempering and discharging technology, when cooling, adopt the cooling or cooled with liquid nitrogen of cooling oil, be cooled to 230 ℃, this nitriding heat treatment process has improved nitriding speed in the selection of controlling furnace pressure and penetration enhancer, reduced nitriding time, than the speed of conventional pit furnace carburizing, improved more than 30%.
A quenching-and-tempering process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
61) heating: part is sent to infiltration module, according to the part of unlike material, select different heating temperature, material is that the part Heating temperature of Medium Alloy Steel is 900 ℃, and the part Heating temperature that material is high quality steel is 860 ℃, after being incubated, enters refrigerating module;
62) cooling: according to the part of unlike material, to select different cooling temperatures, material is that the part of Medium Alloy Steel need guarantee that cooling oil temperature is controlled in 90 ℃, material is that the part of high quality steel need guarantee that cooling oil temperature is controlled in 50 ℃, be 3mm/ second cooling time, enters tempering module after cooling completing;
63) tempering: select different times of tempering according to the different purposes of part, carbon steel and steel alloy part are carried out to a tempering, die steel part is carried out to double tempering;
64) discharging: enter material discharging module, spray and stoving process, to remove temper brittleness district, guarantee the hardness of the part after modified.
Super-huge multifunctional natural gas energy-saving part heat treatment furnace ooze a tungsten thermal treatment process, it is characterized in that: comprise following processing step:
71) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
72) ooze tungsten: this step comprises intensification and oozes tungsten step; Intensification 5h is incubated after reaching 1100 ℃, oozes tungsten, and oozing tungsten speed is 0.01mm/h, and the time is 60h, and oozing tungsten agent is tungsten rod, and tungsten rod is arranged in parallel within to furnace bottom, and external ion glow unit oozes after tungsten completes and delivers to refrigerating module;
73) carry out successively cooling, cleaning, tempering and discharging technology, the type of cooling is air cooling.
A boronising thermal treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
81) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
82) boronising: this step comprises intensification and boronising step; Intensification 5h is incubated after reaching 1050 ℃, carries out boronising, and boriding rate is 0.03mm/h, and the time is 30h, and boronizing agent is borax, and borax is evenly distributed on to furnace bottom, after boronising completes, delivers to refrigerating module;
83) carry out successively cooling, cleaning, tempering and discharging technology, the type of cooling is air cooling.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a super-huge multifunctional natural gas energy-saving part heat treatment furnace, it is characterized in that: comprising: the feed module laterally connecting successively, infiltration module, refrigerating module, cleaning module, tempering module and material discharging module, each module is provided with and between transport unit and adjacent block, is provided with sliding door (1), described refrigerating module and described cleaning module include accommodating layer (2), functional layer (3) and for the part that declines to described functional layer (3) and hold up part to the lifting device (4) of described accommodating layer (2), described accommodating layer (2) and described functional layer (3) length and width height all equate, described accommodating layer (2) and described feed module, infiltration module, contour and the level connection joint of tempering module and material discharging module,
Each module has following functions:
Feed module: for the storage of part, clean and dry, be sent to infiltration module after being dried;
Infiltration module: be anti-seepage heat insulating module, support is carried out modified, carburizing, nitriding, carbonitriding, is oozed tungsten, boronising, tungsten boron co-diffusion and metallic cementation part, according to the part of unlike material, select different penetration enhancers and Heating temperature, after having permeated, be sent to refrigerating module;
Refrigerating module: for cooling fast of part, heat-eliminating medium is cooling oil or air or liquid nitrogen, and the hardness of cooling rear part, erosion resistance and wear resistance are improved, is sent to cleaning module by part after cooling; Described refrigerating module is provided with for guaranteeing the internal recycle refrigerating unit that coolant temperature is constant and making the cooling uniform whipping appts of part for stirring heat-eliminating medium;
Cleaning module: for washing away heat-eliminating medium and the impurity on part, cleaning medium is water, is sent to tempering module after having cleaned;
Tempering module: comprise for the first tempering module (7) of the once heating of part and for the second tempering module (8) of the second-heating of part, after tempering, make hardness, wear resistance and the resistance to fatigue of part be greatly improved, after completing, be sent to material discharging module;
Material discharging module: for the storage of part, clean, dry and polishing, obtain finished product.
2. super-huge multifunctional natural gas energy-saving part heat treatment furnace according to claim 1, is characterized in that: described infiltration module is provided with for first variable valve (5) of adjusting air inflow quantity and the second variable valve (6), some heating units, for sealing the tightness system of sliding door (1), for guaranteeing the blowing device of penetration enhancer atmosphere convection current, for controlling monitoring device and the vent valve of penetration enhancer concentration.
3. super-huge multifunctional natural gas energy-saving part heat treatment furnace according to claim 2, it is characterized in that: the heating source of described heating unit is Sweet natural gas, heating unit is upper and lower two-layer evenly arranges, described tightness system is Sweet natural gas pneumostop door, the Sweet natural gas gas of sealing up a door, described monitoring device is oxygen probe, carbon control instrument and nitrogen control instrument.
4. a carburizing heat treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
41) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
42) carburizing: this step comprises intensification, forced-ventilated, oozes by force, diffusion, cooling and isothermal step; Intensification 4h is incubated after reaching 900 ~ 940 ℃, after exhaust 50 ~ 70min, ooze by force, strong infiltration rate degree is 0.30 ~ 0.34mm/h, and the time of oozing is 7.5 ~ 8.75h by force, and carburizing agent is propane and methane, infiltration is guaranteed the convection current of carbon atmosphere in module and is used oxygen probe and carbon control instrument is effectively controlled carbon concentration, ooze by force rear diffusion 2.8 ~ 3.3h, after having spread, be cooled to 860 ~ 900 ℃, be incubated at least 1h, obtain the part that depth of case reaches 2.4 ~ 2.8mm, after being incubated, deliver to refrigerating module;
43) carry out successively cooling, cleaning, tempering and discharging technology, this carburizing heat treatment process has improved carburizing speed in the selection of controlling furnace pressure and penetration enhancer, than the speed of conventional pit furnace carburizing, improves more than 30%.
5. a nitriding heat treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
51) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
52) nitriding: this step comprises intensification, forced-ventilated, nitriding and diffusing step; Intensification 3h is incubated after reaching 580 ~ 650 ℃, after exhaust 50 ~ 70min, carry out nitriding, nitriding speed is 0.01mm/h, nitriding time is 60h, nitriding medium is ammonia, infiltration guarantees nitrogen atmosphere convection current in module and uses oxygen probe and nitrogen control instrument is effectively controlled nitrogen concentration, and after nitriding completes, diffusion 2h, delivers to refrigerating module after having spread;
53) carry out successively cooling, cleaning, tempering and discharging technology, when cooling, adopt the cooling or cooled with liquid nitrogen of cooling oil, be cooled to 180 ~ 230 ℃, this nitriding heat treatment process has improved nitriding speed in the selection of controlling furnace pressure and penetration enhancer, reduced nitriding time, than the speed of conventional pit furnace carburizing, improved more than 30%.
6. a quenching-and-tempering process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
61) heating: part is sent to infiltration module, according to the part of unlike material, select different heating temperature, material is that the part Heating temperature of Medium Alloy Steel is 860 ~ 900 ℃, and the part Heating temperature that material is high quality steel is 830 ~ 860 ℃, after being incubated, enters refrigerating module;
62) cooling: according to the part of unlike material, to select different cooling temperatures, material is that the part of Medium Alloy Steel need guarantee that cooling oil temperature is controlled in 90 ℃, material is that the part of high quality steel need guarantee that cooling oil temperature is controlled in 50 ℃, be 3mm/ second cooling time, enters tempering module after cooling completing;
63) tempering: select different times of tempering according to the different purposes of part, carbon steel and steel alloy part are carried out to a tempering, die steel part is carried out to double tempering;
64) discharging: enter material discharging module, spray and stoving process, to remove temper brittleness district, guarantee the hardness of the part after modified.
Super-huge multifunctional natural gas energy-saving part heat treatment furnace ooze a tungsten thermal treatment process, it is characterized in that: comprise following processing step:
71) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
72) ooze tungsten: this step comprises intensification and oozes tungsten step; Intensification 5h is incubated after reaching 1000 ~ 1100 ℃, oozes tungsten, and oozing tungsten speed is 0.01mm/h, and oozing tungsten agent is tungsten rod, and tungsten rod is arranged in parallel within to furnace bottom, and external ion glow unit oozes after tungsten completes and delivers to refrigerating module;
73) carry out successively cooling, cleaning, tempering and discharging technology, the type of cooling is air cooling.
8. a boronising thermal treatment process for super-huge multifunctional natural gas energy-saving part heat treatment furnace, is characterized in that: comprise following processing step:
81) charging: treat parts processed and clean and be dried, be sent to infiltration module after being dried;
82) boronising: this step comprises intensification and boronising step; Intensification 5h is incubated after reaching 950 ~ 1050 ℃, carries out boronising, and boriding rate is 0.03mm/h, and boronizing agent is borax, and borax is evenly distributed on to furnace bottom, after boronising completes, delivers to refrigerating module;
83) carry out successively cooling, cleaning, tempering and discharging technology, the type of cooling is air cooling.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439999A (en) * | 2014-11-05 | 2015-03-25 | 芜湖金龙模具锻造有限责任公司 | Manufacturing method of highly wear-resisting hammer upper die forging upper die |
| CN105803284A (en) * | 2016-03-20 | 2016-07-27 | 魏天 | Tooth roller for crusher |
| CN107502852A (en) * | 2017-08-18 | 2017-12-22 | 无锡市奕珺金属改性技术有限公司 | Component surface processing equipment and component surface handling process |
| CN108672352A (en) * | 2018-04-08 | 2018-10-19 | 苏州珮凯科技有限公司 | The Ti material parts regeneration methods of the TiN techniques of 8 cun of wafer manufacture thin film manufacture process of semiconductor |
| CN109338259A (en) * | 2018-11-28 | 2019-02-15 | 江阴电工合金股份有限公司 | The annealing device and its method of two silicon of high-strength high-elasticity cupro-nickel |
| CN109594037A (en) * | 2018-12-29 | 2019-04-09 | 苏州誉高紧固系统有限公司 | A kind of etch-proof environment-protective process of raising stainless steel product |
| CN112342358A (en) * | 2020-10-22 | 2021-02-09 | 仪征常众汽车部件有限公司 | Heat treatment method for automobile part machining |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3315410A1 (en) * | 1983-04-28 | 1984-11-08 | Brown, Boveri & Cie Ag, 6800 Mannheim | Device for cooling workpieces which have been subjected to a thermochemical treatment |
| JP2002146511A (en) * | 2000-11-07 | 2002-05-22 | Nachi Fujikoshi Corp | Continuous vacuum carburizing furnace |
| JP2008189955A (en) * | 2007-02-01 | 2008-08-21 | Dowa Thermotech Kk | Plasma nitriding treatment system |
| CN101358269A (en) * | 2008-09-05 | 2009-02-04 | 潍坊潍柴零部件机械有限公司 | Carburizing quenching pipeline and technique thereof |
| CN202246831U (en) * | 2011-10-11 | 2012-05-30 | 祁标 | Complete set of sealed box type gas carbonitriding furnace equipment |
-
2013
- 2013-11-18 CN CN201310576171.4A patent/CN103602944A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3315410A1 (en) * | 1983-04-28 | 1984-11-08 | Brown, Boveri & Cie Ag, 6800 Mannheim | Device for cooling workpieces which have been subjected to a thermochemical treatment |
| JP2002146511A (en) * | 2000-11-07 | 2002-05-22 | Nachi Fujikoshi Corp | Continuous vacuum carburizing furnace |
| JP2008189955A (en) * | 2007-02-01 | 2008-08-21 | Dowa Thermotech Kk | Plasma nitriding treatment system |
| CN101358269A (en) * | 2008-09-05 | 2009-02-04 | 潍坊潍柴零部件机械有限公司 | Carburizing quenching pipeline and technique thereof |
| CN202246831U (en) * | 2011-10-11 | 2012-05-30 | 祁标 | Complete set of sealed box type gas carbonitriding furnace equipment |
Non-Patent Citations (11)
| Title |
|---|
| 吴元徽等: "《热处理工(高级)》", 31 January 2007, 机械工业出版社 * |
| 固体渗硼;晁拥军;《工模具材料强化处理应用技术》;机械工业出版社;20080331;164-165 * |
| 奥氏体渗氮;潘健生等;《热处理工艺学》;高等教育出版社;20090131;561-564 * |
| 张玉庭: "《简明热处理工手册》", 30 June 2013, 机械工业出版社 * |
| 晁拥军: "《工模具材料强化处理应用技术》", 31 March 2008, 机械工业出版社 * |
| 樊新民等: "《热处理工艺与实践》", 31 January 2012, 机械工业出版社 * |
| 气体渗碳;樊新民等;《热处理工艺与实践》;机械工业出版社;20120131;202-207 * |
| 气体渗碳;樊新民等;《热处理工艺与实践》;机械工业出版社;20120131;87、202-207 * |
| 潘健生等: "《热处理工艺学》", 31 January 2009, 高等教育出版社 * |
| 离子渗金属及其他元素;吴元徽等;《热处理工(高级)》;机械工业出版社;20070131;204-205 * |
| 董世柱等: "《热处理工实际操作手册》", 31 August 2006, 辽宁科学技术出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439999A (en) * | 2014-11-05 | 2015-03-25 | 芜湖金龙模具锻造有限责任公司 | Manufacturing method of highly wear-resisting hammer upper die forging upper die |
| CN105803284A (en) * | 2016-03-20 | 2016-07-27 | 魏天 | Tooth roller for crusher |
| CN107502852A (en) * | 2017-08-18 | 2017-12-22 | 无锡市奕珺金属改性技术有限公司 | Component surface processing equipment and component surface handling process |
| CN107502852B (en) * | 2017-08-18 | 2019-08-13 | 无锡市奕珺金属改性技术有限公司 | Component surface processing equipment and component surface treatment process |
| CN108672352A (en) * | 2018-04-08 | 2018-10-19 | 苏州珮凯科技有限公司 | The Ti material parts regeneration methods of the TiN techniques of 8 cun of wafer manufacture thin film manufacture process of semiconductor |
| CN109338259A (en) * | 2018-11-28 | 2019-02-15 | 江阴电工合金股份有限公司 | The annealing device and its method of two silicon of high-strength high-elasticity cupro-nickel |
| CN109594037A (en) * | 2018-12-29 | 2019-04-09 | 苏州誉高紧固系统有限公司 | A kind of etch-proof environment-protective process of raising stainless steel product |
| CN112342358A (en) * | 2020-10-22 | 2021-02-09 | 仪征常众汽车部件有限公司 | Heat treatment method for automobile part machining |
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Application publication date: 20140226 |