CN204080090U - A kind of inner furnace of nitriding furnace - Google Patents
A kind of inner furnace of nitriding furnace Download PDFInfo
- Publication number
- CN204080090U CN204080090U CN201420491591.2U CN201420491591U CN204080090U CN 204080090 U CN204080090 U CN 204080090U CN 201420491591 U CN201420491591 U CN 201420491591U CN 204080090 U CN204080090 U CN 204080090U
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- CN
- China
- Prior art keywords
- furnace
- inner furnace
- wind
- nitriding
- guiding bucket
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Abstract
The utility model relates to a kind of well formula nitriding furnace, particularly relates to a kind of inner furnace of nitriding furnace.A kind of inner furnace of nitriding furnace, inner furnace becomes cylindric, the inside of described inner furnace also hangs up the wind-guiding bucket of both ends open, spacing between wind-guiding bucket and inner furnace is 100-125mm, and be provided with trivet between wind-guiding bucket and inner furnace and support, the inner side-wall upper end of inner furnace is also provided with puts charging tray, becomes arc surface 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.The utility model, by arranging ventilating duct in inner furnace, makes gas emission cycle better effects if, thus makes 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 well formula nitriding furnace, particularly relates to a kind of inner furnace of 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.
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, the inner furnace of the nitriding furnace of long service life.
In order to realize above-mentioned object, the utility model have employed following technical scheme:
A kind of inner furnace of nitriding furnace, inner furnace becomes cylindric, the inside of described inner furnace also hangs up the wind-guiding bucket of both ends open, spacing between wind-guiding bucket and inner furnace is 100-125mm, and be provided with trivet between wind-guiding bucket and inner furnace and support, the inner side-wall upper end of inner furnace is also provided with puts charging tray, becomes arc surface 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.
Preferably: described wind-guiding bucket 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 ventilating duct in inner furnace, makes gas emission cycle better effects if, thus makes 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.
Adopt deep-well nitriding furnace of the present utility model to have equipment durable, 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 the structural representation adopting nitriding furnace 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 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 (3)
1. the inner furnace of a nitriding furnace, it is characterized in that: inner furnace (7) becomes cylindric, the inside of described 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 be provided with trivet (11) between wind-guiding bucket (9) and inner furnace (7) and support, 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 (13) are also shelved with flue base plate (12) with the junction of inner furnace main body bottom inner furnace, described flue base plate (12) evenly offers hole.
2. the inner furnace of a kind of nitriding furnace according to claim 1, is characterized in that: described wind-guiding bucket (9) adopts the 310S stainless steel materials of 6mm thickness to make.
3. the inner furnace of a kind of 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 |
|---|---|---|---|
| CN201420491591.2U CN204080090U (en) | 2014-08-28 | 2014-08-28 | A kind of inner furnace of nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491591.2U CN204080090U (en) | 2014-08-28 | 2014-08-28 | A kind of inner furnace of nitriding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204080090U true CN204080090U (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420491591.2U Expired - Fee Related CN204080090U (en) | 2014-08-28 | 2014-08-28 | A kind of inner furnace of nitriding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204080090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244978A (en) * | 2016-08-30 | 2016-12-21 | 张子青 | A kind of gas carburizing system |
| CN106498339A (en) * | 2016-12-13 | 2017-03-15 | 大连圣洁真空技术开发有限公司开发区分公司 | A kind of salt-bath nitriding stove salt adding sealing structure |
-
2014
- 2014-08-28 CN CN201420491591.2U patent/CN204080090U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244978A (en) * | 2016-08-30 | 2016-12-21 | 张子青 | A kind of gas carburizing system |
| CN106498339A (en) * | 2016-12-13 | 2017-03-15 | 大连圣洁真空技术开发有限公司开发区分公司 | A kind of salt-bath nitriding stove salt adding sealing structure |
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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 |