CN205741190U - It is applicable to nitriding furnace air supply system and the nitriding furnace thereof of orientation silicon steel - Google Patents
It is applicable to nitriding furnace air supply system and the nitriding furnace thereof of orientation silicon steel Download PDFInfo
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- CN205741190U CN205741190U CN201620451956.8U CN201620451956U CN205741190U CN 205741190 U CN205741190 U CN 205741190U CN 201620451956 U CN201620451956 U CN 201620451956U CN 205741190 U CN205741190 U CN 205741190U
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Abstract
This utility model provides the nitriding furnace air supply system being applicable to orientation silicon steel, and the entrance of feed channel is used for connecting supply gas, air pipe arranges pressure-regulating valve, and the outlet of pressure-regulating valve connects air accumulator, and air accumulator is connected to blending tank by flow control valve.Also providing for a kind of nitriding furnace, the entrance of upper and lower jet pipe connects air supply system, and upper and lower jet pipe is positioned at described furnace interior, and a steam vent is offered in the lower end of upper jet pipe, and a steam vent is offered in the upper end of lower jet pipe, and the space between upper and lower jet pipe is used for conveying steel belt.In air supply system, use multichannel feed channel to access multiple gases and mix, increase gas usage, make gas can form jet-stream wind in use.In nitriding furnace, steel band passes through between upper and lower jet pipe, and mixed gas enters with certain pressure from upper and lower jet pipe, spraying to steel band with certain spray speed through air passing hole, mixed gas impacts on steel band, sends nitridation reaction, realize the effect of steel band nitriding, improve the efficiency of nitriding.
Description
Technical field
This utility model relates to metal material processing apparatus field, a kind of is applicable to oozing of orientation silicon steel
Nitrogen stove air supply system and nitriding furnace thereof.
Background technology
The manufacture process of nitriding part generally comprises these operations of forging, annealing, nitriding and fine grinding.Existing
Nitriding process be that workpiece is put in sealing container, pass to the ammonia of flowing and heat, and carrying out long-time
Insulation, makes ammonia thermal decomposition produce activated nitrogen atom, is constantly adsorbed onto surface of the work, and spreads infiltration workpiece
In top layer, thus change chemical composition and the tissue on top layer.Also needed to carry out annealing treatment before carrying out nitriding
Reason, this processing resulting in nitriding part needs to carry out twice by annealing furnace and two equipment of nitriding furnace respectively
Operation, process time is longer.In order to meet the function of annealing and nitriding simultaneously, one of ordinary skill in the art exist
Annealing furnace increases nitriding furnace structure.But, existing nitriding furnace uses ammonia as supply gas.Due to
The gas consumption of ammonia is little, does not becomes injection gas, therefore, needs the longer time in nitriding process
Wait that furnace interior is full of ammonia atmosphere, again result in working (machining) efficiency low, and uncontrollable nitriding amount.Can
Seeing, there is techniques below problem in existing nitriding furnace air supply system: nitriding process is long, it is impossible to controls nitriding amount.
Utility model content
The purpose of this utility model is to provide the nitriding furnace air supply system being applicable to orientation silicon steel, by regulation gas
Gas pressure in pipeline and flow, it is achieved control nitriding amount.
In order to achieve the above object, the following technical scheme of this utility model offer:
It is applicable to the nitriding furnace air supply system of orientation silicon steel, including blending tank and multichannel feed channel, described trachea
The entrance in road is used for connecting supply gas, and described air pipe arranges pressure-regulating valve, described pressure-regulating valve
Outlet connect air accumulator, air accumulator is connected to described blending tank by flow control valve.Supply gas passes through
Feed channel reduces pressure through pressure-regulating valve, enters air accumulator, until the tolerance in air accumulator is sufficient and pressure
Power is stable.Mix in entering blending tank by the gas of Flux Valve Control desired flow again.Use
Multichannel feed channel accesses multiple gases and mixes, by increasing capacitance it is possible to increase gas usage, makes gas in use can
Form jet-stream wind.Meanwhile, controlled in mixed gas by the tolerance of the various gas of Flux Valve Control
The ratio of each gas, controls nitriding amount further to facilitate.
In a preferred embodiment, also including effusion meter and valve, the outlet of described blending tank connects
Air inlet pipe, described air inlet pipe arranges valve, effusion meter.Mixed gas is controlled by valve, effusion meter
Enter the gas flow of nitriding furnace.
In a preferred embodiment, the quantity of described feed channel is three, three described feed channel
Entrance is respectively used to connect ammonia, hydrogen and nitrogen.Its gas usage of single ammonia is the least, does not becomes
The stream stock of injection gas.The hydrogen of collocation and nitrogen, make ammonia be used in mixed way with hydrogen, nitrogen, the most permissible
Make the ammonia tolerance being passed through controlled, tolerance can be increased again and form injection stream stock.
This utility model also provides for a kind of nitriding furnace being applicable to orientation silicon steel, including body of heater, including upper jet pipe
With lower jet pipe, the entrance of described upper and lower jet pipe connects above-mentioned air supply system, and described upper and lower jet pipe is positioned at
Described furnace interior, the lower end of described upper jet pipe offers a steam vent, and a row is offered in the upper end of described lower jet pipe
Pore, the space between described upper and lower jet pipe is used for conveying steel belt.Steel band passes through between upper and lower jet pipe,
Mixed gas enters with certain pressure from upper and lower jet pipe, sprays to steel band with certain spray speed through air passing hole,
Mixed gas impacts on steel band, sends nitridation reaction, it is achieved the effect of steel band nitriding, improves nitriding
Efficiency.
In a preferred embodiment, also include that anticollision device, collision-prevention device, the support end of described anticollision device, collision-prevention device are positioned at
The top of described lower jet pipe, hits during to prevent strip breakage and pounds lower jet pipe.
In a preferred embodiment, also include that flame retardant coating, described flame retardant coating are arranged on described body of heater
Inwall.Flame retardant coating, for keeping the temperature of furnace interior, protects the shell mechanism of body of heater simultaneously.
In a preferred embodiment, described upper jet pipe is nonmetallic ceramics jet pipe, and described lower jet pipe is
Nonmetallic ceramics jet pipe.
In a preferred embodiment, also include isolating device, the both ends open of described body of heater, make steel
Band can input from described opening, export body of heater, fixes isolating device, described isolating device at described opening
For described furnace sealing is got up.Can be carried out continuously with nitriding to realize annealing, the two ends of body of heater are opened
Mouth enables steel band to enter nitriding furnace the most incessantly.Meanwhile, in order to ensure the sealing of body of heater,
Use isolating device to be sealed by nitriding furnace, make the atmosphere in nitriding furnace will not be by the temperature of forward and backward stove section
Degree and the interference of atmosphere, to ensure that nitriding process can independently be carried out.
The beneficial effects of the utility model are:
In air supply system, use multichannel feed channel to access multiple gases and mix, by increasing capacitance it is possible to increase gas usage,
Make gas can form jet-stream wind in use.Meanwhile, by the gas of the various gas of Flux Valve Control
Amount controls the ratio of each gas in mixed gas, controls nitriding amount further to facilitate.
In nitriding furnace, steel band passes through between upper and lower jet pipe, mixed gas from upper and lower jet pipe with necessarily
Pressure enter, spray to steel band with certain spray speed through air passing hole, mixed gas impacts on steel band, sends out
Send nitridation reaction, it is achieved the effect of steel band nitriding, improve the efficiency of nitriding.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments more of the present utility model, comes for those of ordinary skill in the art
Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the connection diagram of nitriding furnace air supply system；
Fig. 2 is the connection diagram of nitriding furnace；
Fig. 3 is the connection diagram of nitriding furnace and isolating device.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is carried out clear, complete
Ground describes, it is clear that described embodiment is only a part of embodiment of this utility model rather than all
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creation
Property work premise under the every other embodiment that obtained, broadly fall into the scope of this utility model protection.
Shown in Fig. 1, the nitriding furnace air supply system being applicable to orientation silicon steel that the present embodiment provides, including
Blending tank 1 and three tunnel feed channel 2.The entrance of feed channel 2 connects supply gas, and the outlet of air pipe 2 connects
Pressure-regulating valve 3, the outlet of pressure-regulating valve 3 connects air accumulator 4, and air accumulator 4 is by flow control valve 5
It is connected to blending tank 1.The feed channel 2 on each road is all connected to air accumulator 4 according to above-mentioned structure.This three tunnel
The entrance of feed channel 2 connects ammonia, hydrogen and nitrogen respectively.The stable chemical performance of nitrogen, it is possible to be used for
Increase gas flow；Ammonia is as the raw material producing Nitrogen ion；The reproducibility of hydrogen is good, is used for decomposing ammonia,
Produce Nitrogen ion.Ammonia, hydrogen and nitrogen respectively enter in three tunnel feed channel 2, each regulate through excess pressure
Valve 3 reduces pressure, and Shi Zhe tri-road gas all arrives identical and stable pressure.Three road gases respectively enter gas storage
Tank 4, until the tolerance in air accumulator 4 is sufficient and pressure stability.Three road gases pass through flow control valve the most respectively
5 control appropriate gas enters blending tank 1, and this three roads gas mixes in blending tank 1.Use three tunnels
Feed channel accesses three kinds of gases and mixes, by increasing capacitance it is possible to increase the gas usage in nitriding process, makes gas make
Used time can form jet-stream wind.And, the tolerance of three kinds of gases of Flux Valve Control controls gaseous mixture
The ratio of each gas in body, it is achieved control nitriding amount.The outlet of blending tank 1 connects air inlet pipe 6, air inlet pipe
Valve 71, effusion meter 8 and valve 72 are set on 6.Open valve 71,72, makes mixed gas enter nitriding
In stove, entering flow in process meter 8, the gas flow entered is calculated.After reaching the consumption needed,
Close valve 71,72 successively, the most right with the variable of effusion meter 8 to guarantee the gas value entering body of heater
Should.
This utility model also provides for a kind of nitriding furnace being applicable to orientation silicon steel, such as Fig. 2, including body of heater 10.
The inwall bonding flame retardant coating 11 of body of heater 10.In the inside of body of heater 10, heating element heater is set.The side of body of heater 10
Two through holes offered by wall, insert pipeline 101,102 in through hole respectively.One end of pipeline 101 is by pipeline even
Connecing valve 72, the other end connects upper jet pipe 12, and upper jet pipe 12 is positioned at body of heater 10.One end of pipeline 102
By pipeline connecting valve 72, the other end connects lower jet pipe 13, and lower jet pipe 13 is positioned at body of heater 10.Upper spray
A steam vent 121 is offered in the lower end of pipe 12, and a steam vent 131 is offered in the upper end of lower jet pipe 13.Upper jet pipe 12
For nonmetallic ceramics jet pipe, lower jet pipe 13 is nonmetallic ceramics jet pipe.
Carrying out opening in two opposing sidewalls of body of heater 10, the sidewall of opening is positioned at the two of the sidewall offering through hole
End.Steel band 20 can enter body of heater 10 from opening, and enters upper between jet pipe 12, lower jet pipe 13.Mixing
Gas enters in upper jet pipe 12, lower jet pipe 13 with certain pressure, through air passing hole with certain spray speed to steel band
20 ejections, mixed gas impacts on steel band, sends nitridation reaction, it is achieved the effect of steel band nitriding, improves
The efficiency of nitriding.In order to prevent in nitriding process, strip breakage is pounded and is bumped against lower jet pipe 13, real in one
Execute in mode, also include that anticollision device, collision-prevention device 14, anticollision device, collision-prevention device 14 are fixed on the bottom of body of heater 10, make crashproof dress
Put the support end of 14 and be positioned at the top of lower jet pipe 13, when strip breakage, the support end energy of anticollision device, collision-prevention device 14
Enough the steel band of fracture is caught, it is to avoid pound and bump against lower jet pipe 13.
Such as Fig. 3, in order to ensure the sealing of body of heater 10, use isolating device 15 by the body of heater 10 of nitriding furnace
Seal.Opening part at body of heater 10 arranges isolating device.When steel band is transmitted, isolating device 15
Rise, make the opening of body of heater 10 open, to ensure that steel band can enter body of heater 10 smoothly.When steel band enters stove
After body 10, isolating device 15 declines, and is sealed by the opening of body of heater 10, makes body of heater 10 become sealing state,
Make the atmosphere in nitriding furnace will not disturbing, to ensure nitriding process by the temperature of forward and backward stove section and atmosphere
Can independently carry out.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model is also
Be not limited to this, any those familiar with the art in the technical scope that this utility model discloses,
Change can be readily occurred in or replace, all should contain within protection domain of the present utility model.Therefore, this reality
Should described be as the criterion with scope of the claims with novel protection domain.
Claims (8)
1. it is applicable to the nitriding furnace air supply system of orientation silicon steel, it is characterised in that: include blending tank and multichannel gas
Pipeline, the entrance of described feed channel is used for connecting supply gas, described air pipe arranges pressure-regulating valve,
The outlet of described pressure-regulating valve connects air accumulator, and air accumulator is connected to described blending tank by flow control valve.
The nitriding furnace air supply system being applicable to orientation silicon steel the most according to claim 1, it is characterised in that:
Also including effusion meter and valve, the outlet of described blending tank connects air inlet pipe, described air inlet pipe is arranged valve,
Effusion meter.
The nitriding furnace air supply system being applicable to orientation silicon steel the most according to claim 1 and 2, its feature
Be: the quantity of described feed channel is three, the entrance of three described feed channel be respectively used to connect ammonia,
Hydrogen and nitrogen.
4. it is applicable to the nitriding furnace of orientation silicon steel, including body of heater, it is characterised in that: include jet pipe and lower spray
Pipe, the entrance of described upper and lower jet pipe connects the arbitrary described air supply system of claim 1-3, described upper,
Lower jet pipe is positioned at described furnace interior, and a steam vent is offered in the lower end of described upper jet pipe, described lower jet pipe upper
End offers a steam vent, and the space between described upper and lower jet pipe is used for conveying steel belt.
The nitriding furnace being applicable to orientation silicon steel the most according to claim 4, it is characterised in that: also include
Anticollision device, collision-prevention device, the support end of described anticollision device, collision-prevention device is positioned at the top of described lower jet pipe, during to prevent strip breakage
Hit and pound lower jet pipe.
The nitriding furnace being applicable to orientation silicon steel the most according to claim 5, it is characterised in that: also include
Flame retardant coating, described flame retardant coating is arranged on the inwall of described body of heater.
7. according to the arbitrary described nitriding furnace being applicable to orientation silicon steel of claim 4-6, it is characterised in that:
Described upper jet pipe is nonmetallic ceramics jet pipe, and described lower jet pipe is nonmetallic ceramics jet pipe.
8. according to the arbitrary described nitriding furnace being applicable to orientation silicon steel of claim 4-6, it is characterised in that:
Also include isolating device, the both ends open of described body of heater, enable steel band to input from described opening, export stove
Body, fixes isolating device at described opening, and described isolating device is for getting up described furnace sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620451956.8U CN205741190U (en) | 2016-05-18 | 2016-05-18 | It is applicable to nitriding furnace air supply system and the nitriding furnace thereof of orientation silicon steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620451956.8U CN205741190U (en) | 2016-05-18 | 2016-05-18 | It is applicable to nitriding furnace air supply system and the nitriding furnace thereof of orientation silicon steel |
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| Publication Number | Publication Date |
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| CN205741190U true CN205741190U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620451956.8U Active CN205741190U (en) | 2016-05-18 | 2016-05-18 | It is applicable to nitriding furnace air supply system and the nitriding furnace thereof of orientation silicon steel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070818A (en) * | 2018-02-26 | 2018-05-25 | 江门市日盈不锈钢材料厂有限公司 | A kind of melanism equipment |
| CN110438439A (en) * | 2019-08-30 | 2019-11-12 | 武汉钢铁有限公司 | The adjustable nitriding device in atmosphere zones and its continuous gas nitridation process |
| CN110499487A (en) * | 2018-05-16 | 2019-11-26 | 武汉尚瑞科技有限公司 | A kind of ammonia nozzle structure for high magnetic induction grain-oriented silicon steel Nitrizing Treatment |
| CN112503952A (en) * | 2020-11-26 | 2021-03-16 | 东北大学 | Gas supply device in heating furnace |
-
2016
- 2016-05-18 CN CN201620451956.8U patent/CN205741190U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070818A (en) * | 2018-02-26 | 2018-05-25 | 江门市日盈不锈钢材料厂有限公司 | A kind of melanism equipment |
| CN110499487A (en) * | 2018-05-16 | 2019-11-26 | 武汉尚瑞科技有限公司 | A kind of ammonia nozzle structure for high magnetic induction grain-oriented silicon steel Nitrizing Treatment |
| CN110438439A (en) * | 2019-08-30 | 2019-11-12 | 武汉钢铁有限公司 | The adjustable nitriding device in atmosphere zones and its continuous gas nitridation process |
| CN110438439B (en) * | 2019-08-30 | 2021-03-19 | 武汉钢铁有限公司 | Atmosphere region adjustable nitriding device and continuous gas nitriding process thereof |
| CN112503952A (en) * | 2020-11-26 | 2021-03-16 | 东北大学 | Gas supply device in heating furnace |
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