CN208701181U - A kind of vacuum nitriding furnace - Google Patents
A kind of vacuum nitriding furnace Download PDFInfo
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- CN208701181U CN208701181U CN201821129164.4U CN201821129164U CN208701181U CN 208701181 U CN208701181 U CN 208701181U CN 201821129164 U CN201821129164 U CN 201821129164U CN 208701181 U CN208701181 U CN 208701181U
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Abstract
The utility model provides a kind of vacuum nitriding furnace, belongs to technical field of heat treatment, it solves the problems, such as that existing vacuum nitriding equipment processing effect is poor.This vacuum nitriding furnace includes: furnace body, and furnace body both ends fasten respectively bell, and furnace body is made of the preparation room of successively connection, heating room and cooling chamber, insulated door is provided between adjacent two Room, two bells are connected with preparation room, cooling chamber respectively；Cradle, is set as two and two cradles are symmetricly set on furnace body both ends, and the material frame for placing workpiece is movably set on cradle, and material frame sequentially enters preparation room, heating room and cooling chamber and processed；Vacuum system, setting in furnace body side and vacuum system respectively with preparation room, heating room and cooling chamber connection；Nitrogen storage tank, in the furnace body other side, nitrogen storage tank can be filled indoor in heating and circulated and when nitrogen enters heating room with heating room, cooling chamber connection respectively for setting.The utility model has the characteristics that processing effect is good.
Description
Technical field
The utility model belongs to technical field of heat treatment, is related to a kind of vacuum nitriding furnace, especially a kind of to close for high chromium
The vacuum nitriding furnace of Jin Gang production.
Background technique
Vacuum heat treatment refer to heat treatment process all with part carry out under vacuum conditions, it can be achieved that non-oxidation,
Without decarburization, without carburizing, the phosphorus that can remove workpiece surface considers to be worth doing and has the effects of degreasing degasification, thus reach surface-brightening purification
Effect, thermal treatment quality greatly improve.The necessary means of certain specific alloy heat treatments are not only, and in common engineering steel
Heat treatment in also applied, especially tool, mold and accurate coupling part etc., service life is more general after vacuum heat treatment
Heat treatment is greatly improved.
For the wearability for improving metal, mainly to obtain higher surface hardness, workpiece surface hardness is bright after general nitriding
It is aobvious to improve.It is common to have liquid nitriding, gas nitriding, glow discharge nitriding.Traditional gas nitriding is that workpiece is put into sealing container,
The ammonia of flowing and heating are passed to, after keeping the temperature the long period, ammonia thermal decomposition generates activated nitrogen atom, and workpiece surface is penetrated into diffusion
It is interior, to change the chemical component and tissue on surface layer.
And in the existing heat treatment to metal product, often after vacuum heat treatment, pass through different processing equipments
Nitridation process is carried out to product again, equipment cost is high, and process time is relatively long, reduces production efficiency, is unfavorable for product
Production.
In addition, independent nitriding equipment is arranged, putting for one side product is restricted, and processing can only process few portion every time
The product divided, further decreases the production efficiency of product；On the other hand, it needs production interchange to corresponding equipment, people manually
Work operating quantity is big, time-consuming and laborious.
In conclusion to solve the deficiency on existing vacuum nitriding device structure, the utility model devises a kind of knot
The vacuum nitriding furnace that structure is reasonable, processing effect is good.
Summary of the invention
The utility model in order to solve the problems existing in the prior art, provides a kind of good true of structurally reasonable, processing effect
Empty nitriding furnace.
The purpose of this utility model can be achieved through the following technical solutions: a kind of vacuum nitriding furnace, comprising:
Furnace body, furnace body both ends fasten respectively bell, and the furnace body is by the preparation room of successively connection, heating room and cooling
Room is constituted, and is provided with insulated door between adjacent two Room, two bells are connected with preparation room, cooling chamber respectively；
Cradle, is set as two and two cradles are symmetricly set on furnace body both ends, is movably set with and is used on cradle
The material frame of workpiece is placed, the material frame sequentially enters preparation room, heating room and cooling chamber and processed；
Vacuum system, setting in furnace body side and vacuum system respectively with preparation room, heating room and cooling chamber connection；
Nitrogen storage tank, setting in the furnace body other side, nitrogen storage tank respectively with heating room, cooling chamber connection, and when nitrogen into
When entering to heat room, it can fill indoor in heating and circulate.
As the further improvement of this case, heating indoor location has heating electrode, is provided with outside furnace body and heating electrode electricity
The controller of connection.
Another step as this case is improved, and cooling fan is equipped at the top of cooling chamber, and cooling fan can drive nitrogen when rotating
Gas convection current up and down.
As the further improvement of this case, cooling chamber two sides are respectively arranged with radiator, are provided with cooling outside cooling chamber
Pond, radiator both ends pass through water pipe and cooling pond connection respectively, and radiator outer cover is equipped with metal shell.
Another step as this case is improved, and nitrogen storage tank passes through air inlet pipe and heats room connection and be equipped in air inlet pipe
Flow controller.
As the further improvement of this case, the escape pipe with heating room connection is equipped on furnace body, the escape pipe is outside
Extend and is connected with oil-sealed rotary pump.
Another step as this case is improved, and is symmetrically arranged with two tracks on cradle, each track is partially embedded and is sending
Expect in frame, two track opposite sides open up fluted respectively.
Compared with prior art, the utility model structure setting is reasonable, passes through preparation room in nitriding furnace, heating room and cold
But the setting of room carries out quenching and Nitrizing Treatment to product in vacuum nitriding furnace, saves time and expense, improves production effect
Rate；Windrow shove charge is realized using material frame, batch is big, the setting of cooperation cradle upper rail, conveying convenience；By nitrogen and cold
But water collective effect cools down workpiece, good cooling results；Using high pure nitrogen as nitriding and cooling raw material, it is being heat-treated
Free from extraneous odour, smokeless in the process, reduce environmental pollution, and production effect is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial sectional view of Fig. 1.
Fig. 3 is the structural schematic diagram of radiator in the utility model.
Fig. 4 is the cross-sectional view of cradle in the utility model.
In figure, 10, furnace body；11, preparation room；12, room is heated；13, cooling chamber；14, insulated door；15, bell；16, it heats
Electrode；17, controller；18, cooling fan；19, radiator；191, water pipe；192, metal shell；20, cradle；21, material frame；
22, track；23, groove；31, vacuum system；32, nitrogen storage tank；321, air inlet pipe；322, flow controller；33, cooling water
Pond.
Specific embodiment
Below with reference to examples and drawings, the technical solution of the utility model is further elaborated.
As depicted in figs. 1 and 2, this vacuum nitriding furnace includes:
Furnace body 10,10 both ends of furnace body fasten respectively bell 15, furnace body 10 by successively connection preparation room 11, heating room 12
And cooling chamber 13 is constituted, and is provided with insulated door 14 between adjacent two Room, two bells 15 respectively with preparation room 11,13 phase of cooling chamber
Even；
Cradle 20, is set as two and two cradles 20 are symmetricly set on 10 both ends of furnace body, and activity is set on cradle 20
It is equipped with the material frame 21 for placing workpiece, material frame 21 sequentially enters preparation room 11, heating room 12 and cooling chamber 13 and processed；
Vacuum system 31, setting in 10 side of furnace body and vacuum system 31 respectively with preparation room 11, heating room 12 and cold
But 13 connection of room；
Nitrogen storage tank 32, setting in 10 other side of furnace body, nitrogen storage tank 32 respectively with heating room 12,13 connection of cooling chamber,
And when nitrogen enters heating room 12, it can fill in heating room 12 and circulate.
The existing Nitrizing Treatment to metal product often after vacuum heat treatment, it is right again by different processing equipments
Product carries out nitridation process, and equipment cost is high, and long processing time, production efficiency is low, is unfavorable for production.In addition, setting is only
Vertical nitriding equipment, putting for one side product are restricted, and can only be processed least a portion of product every time, be further decreased product
Production efficiency；On the other hand, it needs manually by production interchange to corresponding equipment, manual operation load is big, time-consuming and laborious.
For this purpose, the utility model devises a kind of vacuum nitriding furnace, by preparation room 11 in nitriding furnace, heating room 12 and
The setting of cooling chamber 13 carries out quenching and Nitrizing Treatment to product in vacuum nitriding furnace, saves time and expense, improves production
Efficiency.
Specifically, by material frame 21 by workpiece along cradle 20 enter furnace body 10, by preparation room 11, heating room 12 with
And cooling chamber 13 is quenched, the processing such as nitriding, is obstructed between adjacent two Room by insulated door 14, it is ensured that processing environment is steady
It is fixed.It is preferably vacuumized by three Room of the vacuum system 31 to furnace body 10 in the present embodiment, material frame 21 carries workpiece and entering
Before heating room 12 and cooling chamber 13, first carry out vacuumizing work, it is ensured that reach vacuum level requirements when work.
Each room is vacuumized using vacuum system 31 in the present embodiment, vacuum system 31 is practical by vacuum pump, control
The composition such as system, air accumulator, vacuum pipe, vacuum valve, particular by vacuum pipe and preparation room 11, heating room 12 and
13 connection of cooling chamber, it preferably carries out vacuumizing work.
In addition, it is to provide nitrogen raw material in nitriding and cooling procedure that nitrogen storage tank 32 is preferably provided in the present embodiment, it is real
Border uses nitrogen herein by carrying out again after liquid nitrogen gasification in use, be provided with the equipment such as liquid nitrogen container, gasification installation, by nitrogen
High-purity nitrogen is selected, free from extraneous odour, smokeless, reduce environmental pollution during heat treatment, are conducive to vacuum nitriding process
It is lasting to carry out.
It is noted that when heating in room 12 to workpiece progress nitriding, by the way of nitrogen circulation flowing, to work
Part carries out sufficient nitriding, it is ensured that the final product quality of workpiece meets the requirements.
Preferably, it heats and heating electrode 16 is installed in room 12, be provided with outside furnace body 10 and heat what electrode 16 was electrically connected
Controller 17.
The heating that temperature in room 12 is preferably heated in the present embodiment is realized by heating electrode 16, specifically, in furnace body
Controller 17 is arranged in 10 outsides, directly controls the structure for heating temperature in room 12, while display screen can be set etc by external
Temperature feedback in room 12 will be heated, the variation of temperature is observed and controlled convenient for operator to outside.
As shown in Figures 2 and 3, further, cooling fan 18, energy when cooling fan 18 rotates are installed at the top of cooling chamber 13
Drive nitrogen convection current up and down.
Material frame 21 drives workpiece to enter after cooling chamber 13 to be in 18 lower section of cooling fan, and nitrogen storage tank 32 is towards cooling chamber 13
Interior supplying nitrogen when cooling fan 18 rotates, drives nitrogen to carry out convection current up and down in 21 two sides of material frame, realizes the cooling to workpiece
Work.
Preferably, 13 two sides of cooling chamber are respectively arranged with radiator 19, and cooling pond 33 is provided with outside cooling chamber 13, dissipate
Hot 19 both ends of device pass through water pipe 191 and 33 connection of cooling pond respectively, and 19 outer cover of radiator is equipped with metal shell 192.
When practical operation, since workpiece temperature is very high, nitrogen can pass to nitrogen close to the temperature of rear workpiece, to guarantee
Nitrogen carries out circulating cooling, and radiator 19 is arranged in cooling chamber 13, and the both ends of radiator 19 pass through water pipe 191 and cooling pond
33 connection are passed through cooling water outside furnace body 10, and nitrogen carries out convection current up and down between radiator 19 and workpiece, will be from workpiece
The temperature passed over transfers to pass to radiator 19, that is, passes to cooling water.
Cooling water in radiator 19 continually enters, and constantly exports, and the water of heating of output can be carried out through apparatus for supercooling
It is again introduced into cooling pond 33 after cooling, and then reenters cooling chamber 13 and cooling work is carried out to workpiece.Herein, metal shell
The transmitting of temperature is further convenient in 192 setting, guarantees cooling abundant.
As illustrated in fig. 1, it is preferred that nitrogen storage tank 32 is by air inlet pipe 321 and heating 12 connection of room and in air inlet pipe 321
Flow controller 322 is installed.
Further, the escape pipe (not shown) with heating 12 connection of room, the escape pipe are equipped on furnace body 10
Extend outwardly and is connected with oil-sealed rotary pump (not shown).
When workpiece carries out nitriding work in heating room 12, a point multiple stages are carried out, and following for nitrogen is carried out in final stage
The input of ring, nitrogen is the room 12 of input heating on one side at this time, and the room 12 of output heating on one side, wherein nitrogen is intermittent output, is added
Pressure control is in a certain range in hot cell 12.
When air pressure reaches the peak of restriction, by oil-sealed rotary pump control nitrogen output heating room 12, heat in room 12
Air pressure decreases, and when reaching restriction minimum, stops nitrogen output, loops back and forth like this nitriding that supplying nitrogen makes workpiece
It works well, product quality is high.
Wherein, it since the nitrogen temperature of output is relatively high, carries out cooling later again to outside drain.
The setting of flow controller 322 can control nitrogen towards the rate inputted in room 12 is heated, and control the input of nitrogen
Rate is conducive to improve the nitrogenizing effect of workpiece, and then ensures the final product quality of workpiece.
As shown in Figure 4, it is preferable that two tracks 22 are symmetrically arranged on cradle 20, each track 22 is partially embedded
In cradle 20, two tracks, 22 opposite side opens up fluted 23 respectively.
The setting of track 22 can be matched with the structure of material frame 21, and the groove 23 of two tracks, 22 opposite side is then convenient for material
The idler wheel of 21 bottom of frame is embedded in, and is transported more stable.The fixation of its middle orbit 22 is embedded in cradle 20, it is ensured that the knot of track 22
Structure is stablized, and is conducive to material frame 21 and moves along track 22.
This vacuum nitriding furnace structure setting is reasonable, passes through preparation room 11 in nitriding furnace, heating room 12 and cooling chamber 13
Setting carries out quenching and Nitrizing Treatment to product in vacuum nitriding furnace, saves time and expense, improves production efficiency；Using
Material frame 21 realizes windrow shove charge, and batch is big, the setting of cooperation cradle 20 upper rail 22, conveying convenience；By nitrogen and cold
But water collective effect cools down workpiece, good cooling results；Using high pure nitrogen as nitriding and cooling raw material, it is being heat-treated
Free from extraneous odour, smokeless in the process, reduce environmental pollution, and production effect is good.
Described herein is only preferred embodiments of the present invention, but the protection scope of the utility model is not
It is confined to this.The modify or supplement or adopt that the utility model those skilled in the art carries out described specific embodiment
It is replaced, should all be covered by within the protection scope of the utility model with similar mode.
Claims (7)
1. a kind of vacuum nitriding furnace characterized by comprising
Furnace body, furnace body both ends fasten respectively bell, and the furnace body is by the preparation room of successively connection, heating room and cooling chamber structure
At being provided with insulated door between adjacent two Room, two bells are connected with preparation room, cooling chamber respectively；
Cradle, is set as two and two cradles are symmetricly set on furnace body both ends, is movably set on cradle for placing
The material frame of workpiece, the material frame sequentially enter preparation room, heating room and cooling chamber and are processed；
Vacuum system, setting in furnace body side and vacuum system respectively with preparation room, heating room and cooling chamber connection；
Nitrogen storage tank, setting in the furnace body other side, nitrogen storage tank respectively with heating room, cooling chamber connection, and enter when nitrogen plus
When hot cell, it can fill indoor in heating and circulate.
2. a kind of vacuum nitriding furnace according to claim 1, which is characterized in that heating indoor location has heating electrode, furnace
It is provided with the controller being electrically connected with heating electrode in vitro.
3. a kind of vacuum nitriding furnace according to claim 1, which is characterized in that cooling fan is installed at the top of cooling chamber,
Cooling fan can drive nitrogen convection current up and down when rotating.
4. a kind of vacuum nitriding furnace according to claim 1, which is characterized in that cooling chamber two sides are respectively arranged with heat dissipation
Device is provided with cooling pond outside cooling chamber, and radiator both ends pass through water pipe and cooling pond connection respectively, and outside radiator
It is arranged with metal shell.
5. a kind of vacuum nitriding furnace according to claim 1, which is characterized in that nitrogen storage tank passes through air inlet pipe and heating room
Connection and flow controller is installed in air inlet pipe.
6. a kind of vacuum nitriding furnace according to claim 5, which is characterized in that be equipped on furnace body and heating room connection
Escape pipe, the escape pipe extend outwardly and are connected with oil-sealed rotary pump.
7. a kind of vacuum nitriding furnace according to claim 1, which is characterized in that two tracks are symmetrically arranged on cradle,
Each track is partially embedded in cradle, and two track opposite sides open up fluted respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821129164.4U CN208701181U (en) | 2018-07-17 | 2018-07-17 | A kind of vacuum nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821129164.4U CN208701181U (en) | 2018-07-17 | 2018-07-17 | A kind of vacuum nitriding furnace |
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| Publication Number | Publication Date |
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| CN208701181U true CN208701181U (en) | 2019-04-05 |
Family
ID=65938289
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| CN201821129164.4U Active CN208701181U (en) | 2018-07-17 | 2018-07-17 | A kind of vacuum nitriding furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108588632A (en) * | 2018-07-17 | 2018-09-28 | 嘉兴合邦机械科技有限公司 | A kind of vacuum nitriding stove |
| CN112647039A (en) * | 2020-12-08 | 2021-04-13 | 长春金工表面工程技术有限公司 | Full-automatic nitriding treatment system for large-scale die surface treatment |
-
2018
- 2018-07-17 CN CN201821129164.4U patent/CN208701181U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108588632A (en) * | 2018-07-17 | 2018-09-28 | 嘉兴合邦机械科技有限公司 | A kind of vacuum nitriding stove |
| CN112647039A (en) * | 2020-12-08 | 2021-04-13 | 长春金工表面工程技术有限公司 | Full-automatic nitriding treatment system for large-scale die surface treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A vacuum nitriding furnace Effective date of registration: 20201112 Granted publication date: 20190405 Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch Pledgor: JIAXING UNITEK MACHINERY TECHNOLOGY Co.,Ltd. Registration number: Y2020330000937 |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314000 No. 88 Changsheng East Road, Jiaxing, Zhejiang (Zhejiang Dongming Stainless Steel Products Factory No. three, Limited by Share Ltd) Patentee after: Jiaxing Hebang Machinery Technology Co.,Ltd. Address before: 314000 No. 88 Changsheng East Road, Jiaxing, Zhejiang (Zhejiang Dongming Stainless Steel Products Factory No. three, Limited by Share Ltd) Patentee before: JIAXING UNITEK MACHINERY TECHNOLOGY Co.,Ltd. |