CN110359009A - A kind of multicomponent gas permeation consolidation system and its technique - Google Patents
A kind of multicomponent gas permeation consolidation system and its technique Download PDFInfo
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- CN110359009A CN110359009A CN201910730149.8A CN201910730149A CN110359009A CN 110359009 A CN110359009 A CN 110359009A CN 201910730149 A CN201910730149 A CN 201910730149A CN 110359009 A CN110359009 A CN 110359009A
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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
- C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
- C23C12/02—Diffusion in one step
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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
- C23C8/24—Nitriding
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Abstract
The invention discloses a kind of multicomponent gas permeation consolidation system and its techniques; belong to heat treatment of workpieces technical field; solve the problems, such as that the prior heat treatment feature of environmental protection is poor, osmotic effect is bad, infiltration layer is single, feed unit, ventilating unit, heating including sequential connection are pre- to seep unit, multicomponent gas permeation reinforcing unit, cooling protection unit and discharging unit.The cooperation that the present invention passes through each unit, instead of classical acid anticorrosion process, improve the feature of environmental protection, utilize ventilating unit, air is avoided to participate in, improve the adequacy of polyatom infiltration, heating is pre- to seep unit combination microwave radiation, change lamp stand surface microstructure, accelerate subsequent nitrogen, the permeating speed and depth of element sulphur and chromium, when multicomponent gas permeation intensive treatment, first use ammonia atmosphere Nitrizing Treatment, ball B is seeped using rush again and discharges gaseous carbon sulphur chromium complex, realize carburizing, sulfurizing and chromising permeation processing, enable diffusion layer organization unrelated diversification, improve lamp stand part surface hardness.
Description
Technical field
The invention belongs to heat treatment of workpieces technical fields, specifically, more particularly to a kind of multicomponent gas permeation reinforcing system
System and its technique.
Background technique
Heat treatment industry is related to the equipment of amino atmosphere or production line is entirely box or push-down equipment or production
Line, but the heat treatment of the large sizes, ultra-large type object such as highway lamp stand, communication tower bar cannot be achieved in this kind of equipment or production line.
Simultaneously at present Low Temperature Heat Treatment the methods of nitridation, tufftride, carbonization is usually taken, these methods not only penetrate into element it is single, seep
The saturating time is long, infiltration layer is shallower, comprehensive difference, and is easy to cause handling member anti-corrosive properties, wearability and hardness bad.
Summary of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, provide a kind of feature of environmental protection is strong, osmotic effect is good, seep
The multicomponent gas permeation consolidation system and its technique of layer unrelated diversification.
In order to achieve the above technical purposes, the technical solution that multicomponent gas permeation consolidation system of the present invention and its technique use
Are as follows:
A kind of multicomponent gas permeation consolidation system, feed unit, ventilating unit, heating including sequential connection are pre- to seep list
Unit, cooling protection unit and discharging unit are strengthened in member, multicomponent gas permeation；
The feed unit includes feeding vehicle frame, the truck walking mechanism below charging vehicle frame and along charging vehicle frame
Surface is advanced, through multiple transfer rollers of each unit；
The ventilating unit includes being placed in the pre- preceding air-exchanging chamber for seeping unit front of heating and being placed in cooling protection unit rear portion
Rear air-exchanging chamber；
The pre- unit that seeps of the heating includes heating furnace, and the heating furnace front and back end is respectively equipped with the heat-insulated Zhong Men of sealing in
Door, is equipped with the first venting for being placed in heating furnace surface at heat-insulated middle door, and the heating furnace includes shell, is set in the housing
First insulating layer of wall and the first heating element for being set in the housing portion's upper and lower side, the surface of shell are connected with the first microwave
Generator, first insulation layer surface are embedded with rush and seep ball A, and the surface of shell is communicated with multiple blowers, and the shell is first
Tail end is inserted with thermocouple respectively；
It includes permeation room housing that unit is strengthened in the multicomponent gas permeation, permeation room housing front and back end be separately connected middle door and
Door in sealing is equipped with the second venting at door in sealing, and permeation room housing surface is connected with the second microwave generator,
The permeation room housing inner wall is filled with the second insulating layer, and second insulation layer surface and permeation room housing bottom are embedded with rush
Ball B is seeped, second insulating layer bottom is equipped with sliding rail along extending direction, slidably connects pulley, the pulley in the sliding rail
It is fixedly connected with joining beam by connection ring, the joining beam surface is equipped with the rack gear being meshed with transmission gear, the driving cog
Wheel bottom is engaged with the driven gear for being placed in rack surface, and described driven gear one end is equipped with steering drive axle, the driving cog
Wheel two sides are respectively equipped with shaft coupling, and the shaft coupling both ends are respectively equipped with the centering type vane that opening is away from each other, the vane table
Face is evenly equipped with multiple second heating elements, and the joining beam bottom thread is connected with positioning seat, and the positioning seat side is equipped with and drives
Its micromotor moved along joining beam surface；
The cooling unit includes being placed in sealing fire door in the third held behind the door, fire door in door and third in the sealing
Between be equipped with cooling room housing, the cooling chamber housing bottom passes through pipe filled with heat preservation lining, the cooling chamber surface of shell
Road is connected with shell-and-tube heat exchanger, and the shell-and-tube heat exchanger is connected with heating furnace and permeation room respectively by pipeline；
The discharging unit include discharge vehicle frame, set on discharging vehicle frame below truck walking mechanism and along discharging vehicle frame
Surface is advanced, through multiple transfer rollers of each unit.
Preferably, the transmission roller surface is equipped with the charging tray of carrying lamp stand part, and the charging vehicle frame and ventilating unit connect
The side for meeting place is equipped with stand, and the stand top is equipped with lamp stand part inductor, and surface is embedded with vertical servo mould group, described to watch
It takes mould group surface and is equipped with the limit plate for stopping workpiece to be advanced, the limit plate bottom is equipped with and is placed in the electromagnetism fed below vehicle frame
The magnet that iron phase is attracted.
Preferably, the preceding air-exchanging chamber includes the preceding fire door set on front end, fire door and connection in the first of tail end
The preceding ventilation room housing of fire door in preceding fire door and first, the transfer roller enters from preceding fire door to be extended along preceding air-exchanging chamber enclosure interior
Fire door in first, preceding air-exchanging chamber surface of shell are equipped with the first vacuum air-changing system for promoting preceding air-exchanging chamber enclosure interior to be in vacuum shape
System.
Preferably, the rear air-exchanging chamber includes fire door in be set to cooling protection unit rear portion second, behind end
The rear ventilation room housing of fire door and rear fire door, transfer roller fire door from second enter along rear air-exchanging chamber in fire door and connection second
Enclosure interior extends to rear fire door, and rear air-exchanging chamber surface of shell is equipped with the second vacuum air-changing system.
A kind of multicomponent gas permeation reinforcement process, comprising the following steps:
(1) after lamp stand part to be processed being carried out blasting treatment, overlapping to be placed in charging tray, communicated roller is delivered to each list
Member；
(2) before lamp stand part is delivered to by transfer roller in air-exchanging chamber, lamp stand part inductor issues laser, when being returned according to laser
Between with the comparing calculation of blank time of return go out the total outer diameter of lamp stand part and, using single lamp stand part outer diameter historical data, calculate
Lamp stand number of packages amount, and signal is transferred at electromagnet, when reaching setting value, vertical servo mould group is moved down, bottom magnet and electricity
Magnet is attracted, and limit plate is promoted to move down the conveying for blocking lamp stand part, the dispensing of stopping light rod piece, subsequent magnet and electromagnet rapidly
Repel each other, limit plate moves up, and transfer roller continues to convey lamp stand part；
(3) the first vacuum air-changing system of starting carries out air extracting to preceding air-exchanging chamber, and air participation is avoided to handle；
(4) when in-furnace temperature to be heated reaches 400~460 DEG C, promote to seep fullerene in ball A and generate CO after high-temperature oxydation2
C gas is seeped, while promoting tufftride, lamp stand is delivered in heating furnace by transfer roller, microwave radiation 20min；
(5) when permeation room temperature rises to 470~570 DEG C, it is passed through ammonia, thermal-insulation microwave radiates 30min, then is warming up to
At 570~590 DEG C, promotees to seep gaseous carbon sulphur chromium complex in ball B and gradually discharge, lamp stand part surface is made to form mixing infiltration layer, tissue
Thickness reaches 20~50um；
(6) the lamp stand part after infiltration layer is delivered in cooling room housing by transfer roller, and is filled with nitrogen into cooling room housing
Lamp stand part is protected, blower is started, it is gradually air-cooled again after so that cooling chamber enclosure interior temperature is dropped quickly to 540 DEG C or less
Cooling；
(7) start the second vacuum air-changing system, air extracting is carried out to rear air-exchanging chamber, make rear air-exchanging chamber in vacuum shape, pass
It send roller that lamp stand part after cooling is delivered to rear air-exchanging chamber, prepares discharging；
(8) the cooling back light rod piece of infiltration layer is delivered to discharging vehicle frame by transfer roller, is collected, storage.
Preferably, promote to seep ball A preparation method in the step (4) the following steps are included: 1) by appropriate oxide fibre and
Fullerene is dissolved in carbon tetrachloride solution, impregnates 20~30min；2) mixture taking-up after immersion is placed in CO2In atmosphere
It is cold dry；3) it is coated with silica sol liquid on mixture surface, vacuum is drained, repeatedly, until mixture surface is covered with layer of silica gel；
4) baking oven is dried.
Preferably, promote to seep ball B preparation method in the step (5) the following steps are included: 1) potassium bichromate is dissolved in dense sulphur
In acid, deionized water dilution is added, adds graphite and is sufficiently stirred, to neutrality, expansion stone is made in heat preservation and dryness for washing after centrifugation
Ink；2) silicon monoxide and expanded graphite are added in phenolic resin solvent, are dispersed, expanded graphite/silicon-two is made in high temperature pyrolysis
Silica/carbon composite；3) carbon sulphur chromium complex is packed into expanded graphite/silicon-silicon/carbon dioxide composite material, it is high
Warm processing after be made can slow release gaseous carbon sulphur chromium complex rush seep ball B.
Preferably, the gaseous carbon sulphur chromium complex is that carbon disulfide solution, the ammonium chromic sulfate formamide of ammonium chromic sulfate are molten
The combination complex compound that one or both of liquid is formed with chromium chloride.
Compared with prior art, the beneficial effects of the present invention are:
1, cooperation of this system by each unit, the technique that erosion resistant coating is produced instead of traditional immersion avoid generating a large amount of
Spent acid waste liquid, causes environmental pollution；
2, ventilating unit is respectively set in the front and back end of whole system in the present invention, using vacuum air-changing system, keeps lamp stand more
First process of osmosis without air participate in, improve polyatom infiltration adequacy, while to the poison gas generated in ammonia nitriding process into
Row extracting centralized processing, avoids damaging staff, promotes environmental-protecting performance；
3, the present invention promotees to seep ball A in the pre- infiltration unit setting of heating, in combination with microwave radiation, changes lamp stand surface texture knot
Structure keeps one layer of surface formation C layers micro-, accelerates the permeating speed and depth of subsequent nitrogen, element sulphur and chromium, solve
Because nitriding temperature is excessively high, lack buffer stage, the problem of so as to cause lamp stand surface blackening；
4, the present invention strengthens in unit in multicomponent gas permeation and joining beam is arranged, and joining beam slides axially along permeation room housing, matches
Vane rotation is closed, the heat spiral for generating heating element is uniformly distributed in permeation chamber interior, consequently facilitating ammonia uniformly absorbs heat
After be dispersed in lamp stand part surface, realize being uniformly distributed for diffusion layer organization, improve the quality of lamp stand part；
5, when the present invention carries out multicomponent gas permeation intensive treatment, ammonia atmosphere Nitrizing Treatment is first used, then seep using rush
Ball B discharges gaseous carbon sulphur chromium complex, realizes carburizing, sulfurizing and chromising processing, enables diffusion layer organization unrelated diversification, mention significantly
High lamp stand part surface hardness is reduced coefficient of friction, improves endurance life, while handled using successive segmented infiltration, not only
When simple ammonia being avoided to permeate, initial stage nitrogen gesture is excessively high, and lamp stand part surface generates stain, and avoids ammonia atmosphere and gaseous carbon sulphur
Competition is penetrated into when chromium complex mixing infiltration, enables nitride decomposition and deamination, lamp stand part surface is caused to generate black hole, reduce lamp stand
The problem of part penetration mass.
Detailed description of the invention
Fig. 1 is general arrangement schematic of the present invention；
Fig. 2 is the structural schematic diagram of feed unit in the present invention；
Fig. 3 is the structural schematic diagram of preceding air-exchanging chamber in the present invention；
Fig. 4 is the pre- structural schematic diagram for seeping unit that heats up in the present invention；
Fig. 5 is the structural schematic diagram that unit is strengthened in multicomponent gas permeation in the present invention；
Fig. 6 is the structural schematic diagram of cooling unit in the present invention；
Fig. 7 is the structural schematic diagram of rear air-exchanging chamber in the present invention；
Fig. 8 is the structural schematic diagram of discharging unit in the present invention.
In figure: 1. charging vehicle frames；2. truck walking mechanism；3. transfer roller；Air-exchanging chamber before 4.；Air-exchanging chamber after 5.；6. heat-insulated
Middle door；Door in 7.；8. the first venting；9. shell；10. the first insulating layer；11. the first heating element；12. the first microwave occurs
Device；13. blower；14. thermocouple；15. permeation room housing；16. door in sealing；17. the second venting；18. the second microwave occurs
Device；19. the second insulating layer；20. sliding rail；21. pulley；22. connection ring；23. joining beam；24. transmission gear；25. rack gear；26. from
Moving gear；27. steering drive axle；28. shaft coupling；29. vane；30. the second heating element；31. positioning seat；32. micromotor；
33. fire door in third；34. cooling room housing；35. keeping the temperature lining；36. shell-and-tube heat exchanger；37. discharge vehicle frame；38. charging tray；
39. stand；40. lamp stand part inductor；41. servo mould group；42. limit plate；43. electromagnet；44. magnet；Fire door before 401.；
Fire door in 402. first；It takes a breath before 403. room housing；404. first vacuum air-changing systems；Fire door in 501. second；Furnace after 502.
Door；It takes a breath after 503. room housing；504. second vacuum air-changing systems.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is further described:
As Figure 1-Figure 8, a kind of multicomponent gas permeation consolidation system, feed unit, ventilation including sequential connection are single
Unit, cooling protection unit and discharging unit are strengthened in member, the pre- infiltration unit of heating, multicomponent gas permeation；
The feed unit includes feeding vehicle frame 1, set on the truck walking mechanism 2 of 1 lower section of charging vehicle frame and along charging
1 surface of vehicle frame is advanced, through multiple transfer rollers 3 of each unit；
The ventilating unit includes being placed in the pre- preceding air-exchanging chamber 4 for seeping unit front of heating and being placed in cooling protection unit rear portion
Rear air-exchanging chamber 5；
The pre- unit that seeps of the heating includes heating furnace, and the heating furnace front and back end is respectively equipped with heat-insulated middle 6 He of door of sealing
Middle door 7, is equipped with the first venting 8 for being placed in heating furnace surface at heat-insulated middle door 6, and the heating furnace includes shell 9, is set to
First insulating layer 10 of 9 inner wall of shell and the first heating element 11 set on 9 inside upper and lower side of shell, 9 surface of shell
It is connected with the first microwave generator 12,10 surface of the first insulating layer is embedded with rush and seeps ball A, and 9 surface of shell is communicated with
Multiple blowers 13,9 two ends of shell are inserted with thermocouple 14 respectively；
It includes permeation room housing 15 that unit is strengthened in the multicomponent gas permeation, during 15 front and back end of permeation room housing is separately connected
Door 16 in door 7 and sealing, is equipped with the second venting 17 at door 16 in sealing, and 15 surface of permeation room housing is connected with the
Two microwave generators 18,15 inner wall of permeation room housing be filled with the second insulating layer 19,19 surface of the second insulating layer and
15 bottom of permeation room housing is embedded with rush and seeps ball B, and 19 bottom of the second insulating layer is equipped with sliding rail 20, the cunning along extending direction
Pulley 21 is slidably connected in rail 20, the pulley is fixedly connected with joining beam 23,23 surface of the joining beam paving by connection ring 22
Equipped with the rack gear 25 being meshed with transmission gear 24,24 bottom of transmission gear is engaged with the driven tooth for being placed in 25 surface of rack gear
Wheel 26, described 22 one end of driven gear are equipped with steering drive axle 27, and 24 two sides of transmission gear are respectively equipped with shaft coupling 28, institute
It states 28 both ends of shaft coupling and is respectively equipped with the centering type vane 29 that opening is away from each other, 29 surface of vane is evenly equipped with multiple second and adds
Thermal element 30,23 bottom thread of joining beam are connected with positioning seat 31, and 31 side of positioning seat, which is equipped with, drives it along joining beam table
The mobile micromotor 32 in face；
The cooling unit includes being placed in sealing fire door 33 in the third of 16 rear end of door, door 16 and third in the sealing
Cooling room housing 34 is equipped between interior fire door 33, cooling 34 underfill of room housing has heat preservation lining 35, the cooling chamber
34 surface of shell is connected with shell-and-tube heat exchanger 36 by pipeline, the shell-and-tube heat exchanger 36 by pipeline respectively with heating furnace
It is connected with permeation room；
The discharging unit includes that discharging vehicle frame 37, the truck walking mechanism 2 set on 37 lower section of discharging vehicle frame and edge go out
37 surface of truck frame is advanced, through multiple transfer rollers 3 of each unit.
Feed unit is walked using 2 driving surface transfer roller 3 of truck walking mechanism in the present invention, and then drives elongated lamp stand
Part conveying, promotes efficiency of transmission.The pre- infiltration unit front setting ventilating unit that heats up is being carried out, is carrying out furnace gas ventilation processing, not only
It ensure that the purity of subsequent infiltration processing atmosphere, and avoid the leakage of front end atmosphere, promote whole security performance.Utilize liter
The warm pre- unit that seeps generates CO to the progress surface preparation of lamp stand part2Catalyst is handled as later period tufftride, is softened in advance
Lamp stand part surface texture, convenient for the infiltration of later period nitrogen, element sulphur and chromium.Multicomponent gas permeation is strengthened unit and is passed through
Joining beam 23 slides axially along sliding rail 20, while cooperating the circular motion of shaft coupling 28, realizes the equal of the second heating element heat
Even transmitting enables lamp stand part surface carburization thickness degree and depth reach unanimity, and polynary gas to enable ammonia atmosphere evenly dispersed
Body permeation strengthens unit and utilizes the leading nitriding of ammonia atmosphere, recycles rush to seep ball B and realizes sulfurizing, chromising, seeps lamp stand part surface
Layer Composite, enables surface anticorrosion, hardness etc. be increased dramatically.
3 surface of transfer roller is equipped with the charging tray 38 of carrying lamp stand part, the charging vehicle frame 1 and ventilating unit junction
Side be equipped with stand 39,39 top of stand be equipped with lamp stand part inductor 40, surface is embedded with vertical servo mould group 41, institute
It states 41 surface of servo mould group and is equipped with the limit plate 42 for stopping workpiece to be advanced, 42 bottom of limit plate is equipped with and is placed in charging vehicle frame
The attracted magnet 44 of the electromagnet 43 of 1 lower section.Lamp stand part injected volume is accurately calculated using lamp stand part inductor 40, realizes lamp stand
The cyclical process of part guarantees the orderly progress of process of osmosis, using the actuation of electromagnet 43 and magnet 44, realizes servo mould
Property and the accuracy freely that group 41 moves up and down.
The preceding air-exchanging chamber 4 includes the preceding fire door 401 for being set to front end, fire door 402 and connection in the first of tail end
The preceding ventilation room housing 403 of fire door 402 in preceding fire door 401 and first, the transfer roller 3 enter from preceding fire door 401 along preceding ventilation
To fire door 402 in first, preceding 403 surface of ventilation room housing is equipped with to be promoted in preceding ventilation room housing 403 403 internal stretch of room housing
Portion is in the first vacuum air-changing system 404 of vacuum shape.Air in air-exchanging chamber 4, avoids sky before being extracted using vacuum air-changing system 404
Gas enters rear end, influences subsequent nitriding, sulfurizing and chromising effect, while by air-exchanging chamber 4 before being arranged, avoiding at lamp stand part heat
Toxic gas is excessive when reason disengaging, improves the feature of environmental protection.
Air-exchanging chamber 5 includes fire door 501, the rear fire door set on end in the second of cooling protection unit rear portion after described
502 and connection second in fire door 501 and rear fire door 502 rear ventilation room housing 503, in transfer roller 3 from second fire door 501 into
Enter along rear 503 internal stretch of ventilation room housing to rear fire door 502, rear 503 surface of room housing of taking a breath is equipped with the second vacuum air-changing system
System 504.By air-exchanging chamber 5 after setting, when the communicated roller 3 of lamp stand part being avoided to be delivered to rear end, toxic gas evolution causes personnel
The problem of injury.
When the invention works, lamp stand part to be processed is overlapped and is placed in charging tray 38, start the first vacuum air-changing system
404, air in preceding air-exchanging chamber 4 is stripped, air-exchanging chamber 4 starts truck walking mechanism 2, lamp stand part warp at vacuum shape before making
Before transfer roller 3 is sent in air-exchanging chamber 4, while lamp stand part inductor 40 issues laser, is returned according to laser time of return with blank
Return the time comparing calculation go out the total outer diameter of lamp stand part and, using single lamp stand part outer diameter historical data, calculate lamp stand number of packages amount,
And signal is transferred at electromagnet 43, when reaching setting value, vertical servo mould group 41 is moved down, bottom magnet 44 and electromagnet 43
It is attracted, limit plate 42 is promoted to move down the conveying for blocking lamp stand part, the dispensing of stopping light rod piece, subsequent magnet 44 and electromagnet rapidly
43 repel each other, and limit plate 42 moves up, and transfer roller 3 continues to convey lamp stand part to preceding air-exchanging chamber 4, and heat up the pre- heating element 11 for seeping unit
It is heated to technological temperature, while microwave radiation 20min, promotees to seep fullerene in ball A and is oxidized to carbon dioxide, to lamp stand part table
Face carries out the preliminary C that seeps and handles, and is formed simultaneously later period nitriding catalyst, door 7 in opening, partial CO 2 enters in permeation room；
Permeation indoor micro motor 32 drives while heating stove heating, and positioning seat 31 is driven to be displaced downwardly to 3 surface of transfer roller,
With the operation of transfer roller 3, joining beam 23 is driven to slide along sliding rail 20, the rotary motion under the driving of shaft coupling 8 of vane 29, surface
The heating of second heating element 30 makes entire permeation room temperature uniformity, and permeation chamber surface is equipped with admission line, by air inlet pipe
It is passed through amino atmosphere in road, ammonia is enabled uniformly to dissipate, forms stable, uniform amino atmosphere, after reaching technological temperature, reverse starting
Micromotor 32, micromotor 32 drive positioning seat 31 to move along joining beam 23, start steering drive axle 27, drive driven gear
26 rotations, and then moved with nutating gear 24 along rack gear 25, order moves to top on the whole, consequently facilitating front end lamp stand part is defeated
It send, after lamp stand part amino atmosphere handles 1~3h, increases temperature, promote to seep state carbon sulphur chromium complex in ball B and gradually discharge, microwave spoke
30min is penetrated, realizes quick sulfurizing, chromising, enables diffusion layer organization diversification；
It is delivered to cooling chamber cooling through transfer roller 3 after lamp stand part multicomponent thermochemical treatment, shell-and-tube heat exchanger 36 will after absorbing waste heat
Heat transfer is to front end heating furnace and permeation room, not only effective use of energy sources, but also reduces heating element 11 and be lost；
After further being cooled down in air-exchanging chamber 5 after subsequent lamp stand part is delivered to after the extracting of the second vacuum air-changing system 504
It is delivered to discharging vehicle frame 37, is collected, storage.
A kind of multicomponent gas permeation reinforcement process, comprising the following steps:
(1) after lamp stand part to be processed being carried out blasting treatment, overlapping to be placed in charging tray, communicated roller is delivered to each list
Member；
(2) before lamp stand part is delivered to by transfer roller in air-exchanging chamber, lamp stand part inductor issues laser, when being returned according to laser
Between with the comparing calculation of blank time of return go out the total outer diameter of lamp stand part and, using single lamp stand part outer diameter historical data, calculate
Lamp stand number of packages amount, and signal is transferred at electromagnet, when reaching setting value, vertical servo mould group is moved down, bottom magnet and electricity
Magnet is attracted, and limit plate is promoted to move down the conveying for blocking lamp stand part, the dispensing of stopping light rod piece, subsequent magnet and electromagnet rapidly
Repel each other, limit plate moves up, and transfer roller continues to convey lamp stand part；
(3) the first vacuum air-changing system of starting carries out air extracting to preceding air-exchanging chamber, and air participation is avoided to handle；
(4) when in-furnace temperature to be heated reaches 400~460 DEG C, promote to seep fullerene in ball A and generate CO after high-temperature oxydation2
C gas is seeped, while promoting tufftride, lamp stand is delivered in heating furnace by transfer roller, microwave radiation 20min；
(5) when permeation room temperature rises to 470~570 DEG C, it is passed through ammonia, thermal-insulation microwave radiates 30min, then is warming up to
At 570~590 DEG C, promotees to seep gaseous carbon sulphur chromium complex in ball B and gradually discharge, lamp stand part surface is made to form mixing infiltration layer, tissue
Thickness reaches 20~50um；
(6) the lamp stand part after infiltration layer is delivered in cooling room housing by transfer roller, and is filled with nitrogen into cooling room housing
Lamp stand part is protected, blower is started, it is gradually air-cooled again after so that cooling chamber enclosure interior temperature is dropped quickly to 540 DEG C or less
Cooling；
(7) start the second vacuum air-changing system, air extracting is carried out to rear air-exchanging chamber, make rear air-exchanging chamber in vacuum shape, pass
It send roller that lamp stand part after cooling is delivered to rear air-exchanging chamber, prepares discharging；
(8) the cooling back light rod piece of infiltration layer is delivered to discharging vehicle frame by transfer roller, is collected, storage.
The present invention generates CO in the pre- infiltration unit of heating, using infiltration ball A oxidation is promoted2The preliminary C that seeps is carried out to lamp stand part afterwards to handle,
Simultaneously by CO2Unit is strengthened in gas transport to multicomponent gas permeation, is catalyzed ammonia nitriding process, strengthens in multicomponent gas permeation single
Successive nitriding and sulfurizing, chromising process are taken in member, the setting due to promoting to seep ball B reduces ammonia input amount, avoids initial stage nitrogen
Gesture is excessively high, and lamp stand part surface is caused to lead to the problem of stain, while multicomponent gas permeation, enables lamp stand part diffusion layer organization Composite,
Hardness and anti-corrosive properties are significantly improved, and by way of segmented infiltration, multielement competition when multicomponent gas permeation are avoided to penetrate into,
The problem of causing alloying layer thickness different, reducing product quality.
Promote to seep ball A preparation method in the step (4) the following steps are included: 1) appropriate oxide fibre and fullerene is molten
Solution impregnates 20~30min in carbon tetrachloride solution；2) mixture taking-up after immersion is placed in CO2It is cold dry in atmosphere；3) exist
Mixture surface is coated with silica sol liquid, and vacuum is drained, repeatedly, until mixture surface is covered with layer of silica gel；4) baking oven dries
It is dry.
The present invention replaces being passed directly into CO by seeping ball A in the pre- infiltration unit setting rush of heating2, avoid CO2It is passed through in advance more
Unit is strengthened in first gas permeation and the later period is passed through multicomponent gas permeation and strengthens the uncontrollable of unit intake.
Promote to seep ball B preparation method in the step (5) the following steps are included: 1) potassium bichromate is dissolved in the concentrated sulfuric acid, add
Enter deionized water dilution, add graphite and be sufficiently stirred, to neutrality, expanded graphite is made in heat preservation and dryness for washing after centrifugation；2) will
Silicon monoxide and expanded graphite are added in phenolic resin solvent, dispersion, high temperature pyrolysis be made expanded graphite/silicon-silica/
Carbon composite；3) carbon sulphur chromium complex is packed into expanded graphite/silicon-silicon/carbon dioxide composite material, high-temperature heat treatment
Afterwards be made can slow release gaseous carbon sulphur chromium complex rush seep ball B.
The present invention strengthens unit setting in multicomponent gas permeation and promotees to seep ball B, is formed using iron nitride as matrix, internal molten
Enter the composite anti-corrosive compound layer of other atoms, while the competition between polyatom being avoided to penetrate into, improves lamp stand part diffusion layer organization
Quality.
The gaseous carbon sulphur chromium complex is the carbon disulfide solution of ammonium chromic sulfate, one in ammonium chromic sulfate formamide solution
Kind or two kinds of combination complex compounds formed with chromium chloride.
To sum up, only presently preferred embodiments of the present invention is not used to limit the scope of implementation of the present invention, Fan Yibenfa
Equivalent changes and modifications carried out by the shape of bright scope of the claims, construction, feature and spirit, should be included in power of the invention
In sharp claimed range.
Claims (8)
1. a kind of multicomponent gas permeation consolidation system, it is characterised in that: feed unit, ventilating unit including sequential connection, liter
Unit, cooling protection unit and discharging unit are strengthened in warm pre- infiltration unit, multicomponent gas permeation；
The feed unit includes feeding vehicle frame, the truck walking mechanism below charging vehicle frame and along charging vehicle frame surface
It advances, through multiple transfer rollers of each unit；
The ventilating unit includes after being placed in the pre- preceding air-exchanging chamber for seeping unit front of heating and being placed in cooling protection unit rear portion
Air-exchanging chamber；
The pre- unit that seeps of the heating includes heating furnace, and the heating furnace front and back end is respectively equipped with the heat-insulated Zhong Men and middle door of sealing,
The first venting for being placed in heating furnace surface is equipped at heat-insulated middle door, the heating furnace includes shell, is set in the housing wall
The first insulating layer and be set in the housing the first heating element of portion's upper and lower side, the surface of shell is connected with the first microwave hair
Raw device, first insulation layer surface are embedded with rush and seep ball A, and the surface of shell is communicated with multiple blowers, the shell head and the tail
End is inserted with thermocouple respectively；
It includes permeation room housing that unit is strengthened in the multicomponent gas permeation, and permeation room housing front and back end is separately connected middle door and sealing
Middle door is equipped with the second venting at door in sealing, and permeation room housing surface is connected with the second microwave generator, described
Permeation room housing inner wall is filled with the second insulating layer, and second insulation layer surface and permeation room housing bottom are embedded with rush and seep ball
B, second insulating layer bottom are equipped with sliding rail along extending direction, slidably connect pulley in the sliding rail, the pulley passes through
Connection ring is fixedly connected with joining beam, and the joining beam surface is equipped with the rack gear being meshed with transmission gear, the transmission gear bottom
Portion is engaged with the driven gear for being placed in rack surface, and described driven gear one end is equipped with steering drive axle, the transmission gear two
Side is respectively equipped with shaft coupling, and the shaft coupling both ends are respectively equipped with the centering type vane that opening is away from each other, and the vane surface is equal
Multiple second heating elements are furnished with, the joining beam bottom thread is connected with positioning seat, and the positioning seat side is equipped with and drives its edge
The mobile micromotor in joining beam surface；
The cooling unit includes being placed in sealing fire door in the third held behind the door, in the sealing in door and third between fire door
Equipped with cooling room housing, the cooling chamber housing bottom is connected filled with heat preservation lining, the cooling chamber surface of shell by pipeline
It is connected to shell-and-tube heat exchanger, the shell-and-tube heat exchanger is connected with heating furnace and permeation room respectively by pipeline；
The discharging unit include discharge vehicle frame, set on discharging vehicle frame below truck walking mechanism and along discharging vehicle frame surface
It advances, through multiple transfer rollers of each unit.
2. multicomponent gas permeation consolidation system according to claim 1, it is characterised in that: the transmission roller surface, which is equipped with, holds
The charging tray of lamp stand part is carried, equipped with stand, the stand top is equipped with lamp for the side for feeding vehicle frame and ventilating unit junction
Rod piece inductor, surface are embedded with vertical servo mould group, and the servo mould group surface is equipped with the limit plate for stopping workpiece to be advanced, institute
State the attracted magnet of electromagnet that limit plate bottom is equipped with is placed in below charging vehicle frame.
3. multicomponent gas permeation consolidation system according to claim 1, it is characterised in that: the preceding air-exchanging chamber includes before being set to
The preceding fire door at end, set on fire door in the first of tail end and before connecting in fire door and first fire door preceding ventilation room housing, it is described
Transfer roller enters from preceding fire door extends to fire door in first along preceding air-exchanging chamber enclosure interior, and preceding air-exchanging chamber surface of shell, which is equipped with, to be promoted
Preceding air-exchanging chamber enclosure interior is in the first vacuum air-changing system of vacuum shape.
4. multicomponent gas permeation consolidation system according to claim 1, it is characterised in that: air-exchanging chamber includes set on cold after described
But in fire door in the second of protection location rear portion, the rear fire door set on end and connection second fire door and rear fire door rear ventilation
Room housing, transfer roller fire door from second, which enters, extends to rear fire door, rear air-exchanging chamber surface of shell along rear air-exchanging chamber enclosure interior
Equipped with the second vacuum air-changing system.
5. a kind of multicomponent gas permeation reinforcement process, it is characterised in that: the following steps are included:
(1) after lamp stand part to be processed being carried out blasting treatment, overlapping to be placed in charging tray, communicated roller is delivered to each unit；
(2) before lamp stand part is delivered to by transfer roller in air-exchanging chamber, lamp stand part inductor issues laser, according to laser time of return with
The comparing calculation of blank time of return goes out the total outer diameter of lamp stand part and using single lamp stand part outer diameter historical data, calculates lamp stand
Number of packages amount, and signal is transferred at electromagnet, when reaching setting value, vertical servo mould group is moved down, bottom magnet and electromagnet
It is attracted, limit plate is promoted to move down the conveying for blocking lamp stand part, the dispensing of stopping light rod piece, subsequent magnet and electromagnetism iron phase rapidly
Reprimand, limit plate move up, and transfer roller continues to convey lamp stand part；
(3) the first vacuum air-changing system of starting carries out air extracting to preceding air-exchanging chamber, and air participation is avoided to handle；
(4) when in-furnace temperature to be heated reaches 400~460 DEG C, promote to seep fullerene in ball A and generate CO after high-temperature oxydation2Seep C gas
Body, while promoting tufftride, lamp stand is delivered in heating furnace by transfer roller, microwave radiation 20min；
(5) when permeation room temperature rises to 470~570 DEG C, it is passed through ammonia, thermal-insulation microwave radiates 30min, then it is warming up to 570~
At 590 DEG C, promotees to seep gaseous carbon sulphur chromium complex in ball B and gradually discharge, so that lamp stand part surface is formed mixing infiltration layer, tissue thickness reaches
To 20~50um；
(6) the lamp stand part after infiltration layer is delivered in cooling room housing by transfer roller, and is filled with nitrogen to lamp into cooling room housing
Rod piece is protected, and blower is started, gradually air-cooled drop again after making cooling chamber enclosure interior temperature drop quickly to 540 DEG C or less
Temperature；
(7) start vacuum air-changing system, air extracting is carried out to rear air-exchanging chamber, makes rear air-exchanging chamber in vacuum shape, transfer roller will be cold
But the lamp stand part after is delivered to rear air-exchanging chamber, prepares discharging；
(8) the cooling back light rod piece of infiltration layer is delivered to discharging vehicle frame by transfer roller, is collected, storage.
6. multicomponent gas permeation reinforcement process according to claim 5, it is characterised in that: promote to seep ball A system in the step (4)
Preparation Method the following steps are included: 1) appropriate oxide fibre and fullerene are dissolved in carbon tetrachloride solution, impregnate 20~
30min；2) mixture taking-up after immersion is placed in CO2It is cold dry in atmosphere；3) silica sol liquid, vacuum are coated on mixture surface
It drains, repeatedly, until mixture surface is covered with layer of silica gel；4) baking oven is dried.
7. multicomponent gas permeation reinforcement process according to claim 5, it is characterised in that: promote to seep ball B system in the step (5)
The following steps are included: 1) potassium bichromate is dissolved in the concentrated sulfuric acid, addition deionized water dilution adds graphite and sufficiently stirs Preparation Method
It mixes, to neutrality, expanded graphite is made in heat preservation and dryness for washing after centrifugation；2) silicon monoxide and expanded graphite are added to phenolic resin
In solvent, expanded graphite/silicon-silicon/carbon dioxide composite material is made in dispersion, high temperature pyrolysis；3) carbon sulphur chromium complex is filled
Enter in expanded graphite/silicon-silicon/carbon dioxide composite material, being made after high-temperature heat treatment can the complexing of slow release gaseous carbon sulphur chromium
The rush of object seeps ball B.
8. multicomponent gas permeation reinforcement process according to claim 7, it is characterised in that: the gaseous carbon sulphur chromium complex is
One or both of the carbon disulfide solution of ammonium chromic sulfate, ammonium chromic sulfate formamide solution are complexed with the combination that chromium chloride is formed
Object.
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| CN110835722A (en) * | 2019-11-27 | 2020-02-25 | 特诺恩技术（天津）有限公司 | Sliding sealing furnace door for gear carburizing heat treatment |
| CN110906734A (en) * | 2019-11-28 | 2020-03-24 | 山东道普安制动材料有限公司 | Brake disc continuous siliconizing furnace and working method thereof |
| CN111172492A (en) * | 2020-01-03 | 2020-05-19 | 燕山大学 | Device and method for gear surface carburization |
| CN111850460A (en) * | 2020-07-24 | 2020-10-30 | 江苏良川科技发展有限公司 | Multi-gas co-permeation strengthening system and process thereof |
| CN111962016A (en) * | 2020-09-03 | 2020-11-20 | 江苏良川科技发展有限公司 | Preparation method of steel lamp pole |
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| CN117512500B (en) * | 2024-01-08 | 2024-03-26 | 江苏丰东热技术有限公司 | Carbonitriding heating device |
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