CN204080091U - Well formula nitriding furnace - Google Patents
Well formula nitriding furnace Download PDFInfo
- Publication number
- CN204080091U CN204080091U CN201420491783.3U CN201420491783U CN204080091U CN 204080091 U CN204080091 U CN 204080091U CN 201420491783 U CN201420491783 U CN 201420491783U CN 204080091 U CN204080091 U CN 204080091U
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- furnace
- bell
- inner furnace
- heat
- collecting box
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Abstract
The utility model relates to a kind of nitriding furnace, comprise furnace shell, bell, inner furnace and wind-guiding bucket, the inside of inner furnace also hangs up the wind-guiding bucket of both ends open, and be provided with trivet between wind-guiding bucket and inner furnace and support, arc surface is become bottom inner furnace, and be also shelved with flue base plate with the junction of inner furnace main body bottom inner furnace, described flue base plate evenly offers hole; Described bell upper center is fixed with blower fan, and is provided with cooling water tank between blower fan and bell, and the lower end of described bell is fixed with heat-collecting box, and described blower fan is connected with fan blade by the axle running through heat-collecting box, and described bell is also provided with ammonia pipe.The utility model by arranging blower fan on bell, and arranges ventilating duct in inner furnace, and both cooperations make gas emission cycle from lower to upper, thus make the heat distribution in stove more even; The intensity that trivet also further increases inner furnace is set between ventilating duct and inner furnace, effectively can prevents the distortion of inner furnace.
Description
Technical field
The utility model relates to a kind of equipment for Heating Processing, particularly relates to a kind of well formula nitriding furnace.
Background technology
Well formula nitriding furnace is drum-shaped structure, be generally used for the heat treatment of the component such as injection moulding machine, braiding machine machine barrel, screw rod, the common nitriding furnace of general manufacturer production for many years, adopt common 321 stainless steel flues, and nitriding furnace is not equipped with blower fan, furnace temperature decision is poor, and speed of cooling is slow, product hardness is inconsistent, cannot reach the requirement of client.
The inner furnace of open well formula nitriding furnace is in the Working environment of High Temperature High Pressure for a long time, and inner furnace is heated also uneven, causes inner furnace to be easily out of shape, affects work-ing life; Only be provided with the furnace lining that one deck adopts refractory materials between the furnace shell of open well formula nitriding furnace and inner furnace, calorific loss is higher, and make the energy consumption of nitriding furnace higher, working (machining) efficiency is low.
Summary of the invention
In order to solve above-mentioned technical problem, it is simple that the purpose of this utility model is to provide a kind of structure, and in-furnace temperature is comparatively even, long service life and the high well formula nitriding furnace of working (machining) efficiency.
In order to realize above-mentioned object, the utility model have employed following technical scheme:
Well formula nitriding furnace, comprise furnace shell, bell and inner furnace, described bell is arranged on the top of furnace shell, described furnace shell inwall is provided with one deck furnace lining, the inner side-wall of described furnace lining is evenly provided with heating unit, the described bottom outside stating furnace shell is provided with multiple gas blower, and described gas blower is connected with the vent-pipe offered bottom furnace shell; Described inner furnace hangs up the inside at furnace shell, and the inner side-wall upper end of inner furnace is also provided with puts charging tray, becomes arc surface bottom inner furnace, and is also shelved with flue base plate with the junction of inner furnace main body bottom inner furnace, and described flue base plate evenly offers hole; Described bell upper center is fixed with blower fan, and be provided with cooling water tank between blower fan and bell, the lower end of described bell is fixed with heat-collecting box, described blower fan is connected with fan blade by the axle running through heat-collecting box, described bell is also provided with ammonia pipe, extend to the top of flue base plate after described ammonia pipe runs through bell and heat-collecting box, described bell is also provided with temperature tube, described temperature tube extends in inner furnace after running through bell and heat-collecting box.
Preferably: described heating unit is resistive band, and resistive band is fixed on the inwall of furnace lining by ceramic screw bar.
Preferably: described furnace lining adopts cellucotton material to be made.
Preferably: described heat-collecting box all adopts the 310S stainless steel materials of 6mm thickness to make.
Preferably: described inner furnace adopts the 310S stainless steel materials of 10mm thickness to make.
The utility model, by arranging blower fan on bell, makes gas by emission cycle, thus makes the heat distribution in stove more even; Bottom between furnace lining and inner furnace is provided with gas blower, improves entering of cold wind and the temperature in burner hearth is reduced, thus realize quick cooled hearth, improve the utilization ratio of equipment and the object of productivity.
It is durable that deep-well nitriding furnace of the present utility model has equipment, and the little stable operation of Product Variant power is convenient, and ammonia is economized, homogeneous temperature, the advantages such as hardness is unanimous between the higher and lower levels.Especially to the nitriding treatment surface hardness 900-1000HV of 38CrMoAl, nitride layer depth 0.5-0.8mm, nitrogenize fragility < one-level.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is made a detailed explanation.
A kind of well formula nitriding furnace as shown in Figure 1, comprise furnace shell 17, bell 16, inner furnace 7 and wind-guiding bucket 9, described bell 16 is arranged on the top of furnace shell 17, described furnace shell 17 inwall is provided with one deck furnace lining 15, the inner side-wall of described furnace lining 15 is evenly provided with heating unit 10, described heating unit 10 is resistive band, and resistive band is fixed on the inwall of furnace lining 15 by ceramic screw bar, there is structure simple, install and change conveniently, improve the radiation coefficient of electrical heating element, enhance heat exchange in stove, improve furnace thermal efficiency, and extend the work-ing life of element, improve the quality of work and the homogeneity of temperature.
The bottom outside of described furnace shell 17 is provided with multiple gas blower, and described gas blower is connected with the vent-pipe 14 offered bottom furnace shell; Gas blower inputs a large amount of cold wind in stove, and from furnace bottom through the export-oriented blowing up of flue, thus discharged by air channel by the hot blast in stove, assembling on the ground, accesses furnace bottom by vent-pipe, thus quick cooled hearth, improve utilization ratio and the productivity of equipment.
Described inner furnace 7 hangs up in the inside of furnace shell 17, the inside of inner furnace 7 also hangs up the wind-guiding bucket 9 of both ends open, spacing between wind-guiding bucket 9 and inner furnace 7 is 100-125mm, and is provided with trivet 11 between wind-guiding bucket 9 and inner furnace 7 and supports, make inner furnace not modification, do not loosen.The inner side-wall of ventilating duct 9 is also welded with the channel-section steel extended to bottom by top, the inner side-wall upper end of inner furnace 7 is also provided with puts charging tray 8, is convenient to being linked into of small pieces.
13 one-tenth arc surfaces bottom inner furnace, adopt high pressure cover end taper to make, strengthen recycle heat effect, and 13 are also shelved with flue base plate 12 with the junction of inner furnace main body bottom inner furnace, and described flue base plate 12 evenly offers hole; The ammonia bottom ammonia pipe can be made up to distribute, circulated by blower fan and squeeze into each position of product.
Described bell 16 upper center is fixed with blower fan 1, and is provided with cooling water tank 2 between blower fan 1 and bell 16, is unlikely to the too high impact of blower fan temperature and produces during use.The lower end of described bell 16 is fixed with heat-collecting box 5, and described blower fan 1 is connected with fan blade 6 by the axle running through heat-collecting box 5, thus reaches the homogeneity of furnace temperature, cause nitrogenize product colour out and hardness consistent.
Described bell 16 is also provided with ammonia pipe 3, extend to the top of flue base plate 12 from the gap between ventilating duct and inner furnace after described ammonia pipe 3 runs through bell 16 and heat-collecting box 5, described bell 16 is also provided with temperature tube 4, described temperature tube 4 extends in the channel-section steel of ventilating duct 9 inner side-wall after running through bell 16 and heat-collecting box 5, be consistent with workpiece, the actual temperature of induction workpiece, imports instrumented data into, reaches the requirement accurately controlling in-furnace temperature.
Described furnace lining 15 adopts cellucotton material to be made.Described wind-guiding bucket 9 and heat-collecting box 5 all adopt the 310S stainless steel materials of 6mm thickness to make.Described inner furnace 7 adopts the 310S stainless steel materials of 10mm thickness to make, and increases work-ing life, saves the usage quantity of ammonia.
Claims (5)
1. well formula nitriding furnace, it is characterized in that: comprise furnace shell (17), bell (16) and inner furnace (7), described bell (16) is arranged on the top of furnace shell (17), described furnace shell (17) inwall is provided with one deck furnace lining (15), the inner side-wall of described furnace lining (15) is evenly provided with heating unit (10), the described bottom outside stating furnace shell (17) is provided with multiple gas blower, and described gas blower is connected with the vent-pipe offered bottom furnace shell (14), described inner furnace (7) hangs up the inside in furnace shell (17), the inner side-wall upper end of inner furnace (7) is also provided with puts charging tray (8), bottom inner furnace, (13) become arc surface, and bottom inner furnace, (13) are also shelved with flue base plate (12) with the junction of inner furnace main body, and described flue base plate (12) evenly offers hole, described bell (16) upper center is fixed with blower fan (1), and be provided with cooling water tank (2) between blower fan (1) and bell (16), the lower end of described bell (16) is fixed with heat-collecting box (5), described blower fan (1) is connected with fan blade (6) by the axle running through heat-collecting box (5), described bell (16) is also provided with ammonia pipe (3), described ammonia pipe (3) extends to the top of flue base plate (12) after running through bell (16) and heat-collecting box (5), described bell (16) is also provided with temperature tube (4), described temperature tube (4) extends in inner furnace (7) after running through bell (16) and heat-collecting box (5).
2. well formula nitriding furnace according to claim 1, is characterized in that: described heating unit (10) is resistive band, and resistive band is fixed on the inwall of furnace lining (15) by ceramic screw bar.
3. well formula nitriding furnace according to claim 1, is characterized in that: described furnace lining (15) adopts cellucotton material to be made.
4. well formula nitriding furnace according to claim 1, is characterized in that: described heat-collecting box (5) adopts the 310S stainless steel materials of 6mm thickness to make.
5. well formula nitriding furnace according to claim 1, is characterized in that: described inner furnace (7) adopts the 310S stainless steel materials of 10mm thickness to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491783.3U CN204080091U (en) | 2014-08-28 | 2014-08-28 | Well formula nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491783.3U CN204080091U (en) | 2014-08-28 | 2014-08-28 | Well formula nitriding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204080091U true CN204080091U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420491783.3U Expired - Fee Related CN204080091U (en) | 2014-08-28 | 2014-08-28 | Well formula nitriding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204080091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104928619A (en) * | 2014-08-28 | 2015-09-23 | 浙江长兴天盛工业炉有限公司 | Pit-type nitriding furnace |
| CN106244978A (en) * | 2016-08-30 | 2016-12-21 | 张子青 | A kind of gas carburizing system |
-
2014
- 2014-08-28 CN CN201420491783.3U patent/CN204080091U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104928619A (en) * | 2014-08-28 | 2015-09-23 | 浙江长兴天盛工业炉有限公司 | Pit-type nitriding furnace |
| CN106244978A (en) * | 2016-08-30 | 2016-12-21 | 张子青 | A kind of gas carburizing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |