CN110079657A - A kind of gas mixing feedway in saw blade tempering furnace - Google Patents
A kind of gas mixing feedway in saw blade tempering furnace Download PDFInfo
- Publication number
- CN110079657A CN110079657A CN201910414044.1A CN201910414044A CN110079657A CN 110079657 A CN110079657 A CN 110079657A CN 201910414044 A CN201910414044 A CN 201910414044A CN 110079657 A CN110079657 A CN 110079657A
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- gas
- cylinder
- tempering furnace
- mixing
- saw blade
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/24—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for saw blades
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses the gas mixing feedways in a kind of tempering furnace that tempering furnace gas can be made to be evenly distributed and can make the salient point that the generation of saw blade surface is easy to lacquer painting attachment after being tempered, it is equipped with spiral helicine air supply pipe including inboard wall of furnace body, at least three be axially disposed on inboard wall of furnace body along furnace body pass through the gas service pipes of air supply pipe；It further include the closed cylinder being arranged in outside furnace body, annular ledge there are two being set relatively in cylinder, annular ledge is equipped with bearing block, it is equipped between two bearing blocks and is equipped with mixing axis, cylinder is equipped with the power device of driving mixing axis rotation, support is equipped with several recirculation holes for gas to pass through, side is equipped with oxygen intake pipe and nitrogen inlet duct on cylinder, tetra- turbo blade of Liang Zhi is respectively equipped on both ends on mixing axis outside bearing block, the other side is equipped with gas outlet tube on cylinder, gas outlet tube is connected with air supply pipe in tempering furnace, ventilating duct is equipped in the outer cover of mixing axis between two brackets.
Description
Technical field
The present invention relates to the gas mixing feedways in a kind of saw blade tempering furnace.
Background technique
It is distributed often through setting agitating shaft the gas (usually nitrogen) after heating in furnace in existing tempering furnace
Uniformly, such as a kind of back-fire arrangement described in patent ZL201720293559.7.It will appear multiple times in furnace chamber when being otherwise tempered
Fiery dead angle, Uniformity of Temperature Field is poor, so that workpiece uneven heating, influences tempering quality, increases disqualification rate, increases cost；
And causing workpiece that cannot be superimposed placement mostly, furnace cavity utilization rate is low.
Saw blade, which needs to take out from tempering furnace after being usually tempered, carries out pickling, carries out surface granosealing, again then with life
More preferably adhere to the surface with salient point of lacquer painting when at for subsequent japanning, this process flow is complicated, and generates in production process
A large amount of to need to post-process the waste liquid to avoid pollution environment, processing cost is high.
Summary of the invention
The technical problems to be solved by the present invention are: provide it is a kind of can make be tempered furnace gas be evenly distributed and can make to be tempered
Saw blade surface generates the gas mixing feedway being easy in the tempering furnace of the salient point of lacquer painting attachment afterwards.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows: the gas mixing in saw blade tempering furnace supplies
Spiral helicine air supply pipe, at least three be axially disposed on inboard wall of furnace body along furnace body are equipped with to device, including inboard wall of furnace body
The part of face burner hearth is equipped with venthole, the aperture edge of the venthole on the gas service pipes of air supply pipe, air supply pipe
Direction far from inlet end is gradually increased；It further include the closed cylinder being arranged in outside furnace body, it is opposite in cylinder to set that there are two rings
Shape support, annular ledge are equipped with bearing block, are equipped between two bearing blocks and are equipped with mixing axis, and cylinder is equipped with driving mixing axis
The power device of rotation, support are equipped with several recirculation holes for gas to pass through, on cylinder side be equipped with oxygen intake pipe and
Nitrogen inlet duct, oxygen intake pipe are equipped with flowmeter and solenoid valve, and nitrogen inlet duct is equipped with flowmeter and solenoid valve, mixing
Tetra- turbo blade of Liang Zhi is respectively equipped on both ends on axis outside bearing block, the other side is equipped with gas outlet tube, gas on cylinder
Body outlet is connected with air supply pipe in tempering furnace, is equipped with ventilating duct in the outer cover of mixing axis between two brackets.
As a preferred solution, several short blades are equipped on the mixing axis between two bearing blocks.
As a preferred solution, the short blade be spirally distributed mixing axis on, and short blade from root to
It is upper to be tilted toward airintake direction.
As a preferred solution, the power device includes the servo drive motor and booster engine being connected, speedup
Machine setting is connected by a pair of of bevel gear with the mixing axis in inner barrel, the force-output shaft of booster engine.
As a preferred solution, twice turbine leaf is respectively equipped on the both ends on the mixing axis outside bearing block
Piece.
As a preferred solution, also pass through the circulation air hose and tempering furnace of belt controling valve on the nitrogen inlet duct
Inner cavity is connected.
The beneficial effects of the present invention are:
Gas mixing feedway in saw blade tempering furnace, including inboard wall of furnace body are equipped with spiral helicine air supply pipe, along furnace
Body is axially disposed at least three on the inboard wall of furnace body gas service pipes across air supply pipe, the part of face burner hearth on air supply pipe
It is equipped with venthole, the aperture of the venthole is gradually increased along the direction far from inlet end；So that the hot-air point in burner hearth
Cloth is uniform, to guarantee that product can be sufficiently tempered in furnace；
Due to further including by oxygen and the mixed uniformly device of nitrogen, the phase can lead to uniformly mixed gas after tempering
Enter burner hearth, to play the effect aoxidized to saw blade surface, eliminates cost increase caused by pickling process, reduce processing
The generation of waste.
It is set due to opposite in cylinder there are two annular ledge, annular ledge is equipped with bearing block, wears between two bearing blocks
Have and be equipped with mixing axis, support is equipped with several recirculation holes for gas to pass through, mixes on the both ends on axis outside bearing block respectively
Equipped with tetra- turbo blade of Liang Zhi, it is equipped with ventilating duct in the outer cover of mixing axis between two brackets, so that gas is from first group
Turbo blade come out after by the lesser support of circulation area and ventilating duct region, then to second group of turbo blade region, circulation
The variation of area is so that gas flowing is more violent, so that two kinds of gases can be just sufficiently mixed in shorter process
It is even, so that the compact overall structure of mixing arrangement.
Due to being equipped with several short blades between two bearing blocks on mixing axis, enhance mixed effect.
The short blade is spirally distributed on mixing axis, and short blade is tilted toward airintake direction upwards from root, can
It is bigger with blade area in a limited space, enhance mixed effect.
Since power device includes the servo drive motor and booster engine being connected, booster engine setting increases in inner barrel
The force-output shaft of fast machine is connected by a pair of of bevel gear with the mixing axis, and the input of inner barrel booster engine is arranged in booster engine
Axis is not allowed vulnerable since its lower sealing between cylinder of revolving speed cooperates.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
In Fig. 1: 1. cylinders, 2. annular ledges, 3. bearing blocks, 4. mixing axis, 5. short blades, 6. driving motors, 7. speedups
Machine, 8. bevel gears, 9. first gas air inlet pipe, 10. second gas air inlet pipe, 11. flowmeters, 12. solenoid valves, 13. flowmeters,
14. solenoid valve, 15. turbo blades, 16. gas outlet tubes, 17. ventilating ducts, 18. air supply pipes, 19. gas service pipes, 20. outlets
Hole, 21. furnace bodies, 22. circulation air hoses.
Specific embodiment
With reference to the accompanying drawing, detailed description of the present invention specific embodiment.
With reference to the accompanying drawing, detailed description of the present invention specific embodiment.
As shown in Figure 1, the gas mixing feedway in saw blade tempering furnace, including 21 inner wall of furnace body is equipped with spiral helicine
Air supply pipe 18, four be axially disposed on 21 inner wall of furnace body along furnace body 21 pass through the gas service pipes 19 of air supply pipe 18, gas supply
The part of face burner hearth is equipped with venthole 20 on pipe 18, and the aperture of the venthole 20 gradually increases along the direction far from inlet end
Greatly；Gas service pipes 19 it is closed at one end, the other end is connected with circular ring shape air inlet pipe；
Further include the closed cylinder 1 being arranged in outside furnace body 21, is set relatively in cylinder 1 there are two annular ledge 2, annular is propped up
Seat 2 is equipped with bearing block 3, is equipped between two bearing blocks 3 and is equipped with mixing axis 4, mixes and set between two bearing blocks 3 on axis 4
There are several short blades 5.The short blade 5 be spirally distributed mixing axis 4 on, and short blade 5 from root upwards toward air inlet side
To inclination.
Cylinder 1 is equipped with the power device that driving mixing axis 4 rotates, power device include the driving motor 6 that is connected with
Booster engine 7, booster engine 7 are arranged inside cylinder 1, and the force-output shaft of booster engine 7 passes through a pair of of bevel gear 8 and mixes 4 phase of axis with described
Connection.
Support is equipped with several recirculation holes for gas to pass through, and side is equipped with oxygen intake pipe 10 and nitrogen on cylinder 1
Air inlet pipe 9, oxygen intake pipe 10 are equipped with flowmeter 13 and solenoid valve 14, and nitrogen inlet duct 9 is equipped with flowmeter 11 and electromagnetism
Valve 12 is also connected on the nitrogen inlet duct 9 with tempering furnace chamber by the circulation air hose 22 of belt controling valve.
Twice turbo blade 15 is respectively equipped on the both ends outside bearing block 3 on mixing axis 4, the other side is equipped on cylinder 1
Gas outlet tube 16, gas outlet tube 16 are connected with air supply pipe 18 in tempering furnace, in the outside of mixing axis 4 between two brackets
It is arranged with ventilating duct 17.
It is closed in 10 solenoid 14 of preliminary stage oxygen intake pipe of tempering, and power device does not work, it only will be certain
The nitrogen of amount inputs furnace body 21,9 solenoid 12 of 10 solenoid 14 of oxygen intake pipe and nitrogen inlet duct in drawing process
It closes, and power device low-speed running, is recycled the nitrogen in furnace by circulation air hose 22, to guarantee that in-furnace temperature is equal
Even, after the completion of crystal transition on saw blade, 10 solenoid 14 of oxygen intake pipe is opened, mixed in internally-powered device driving in five minutes
Sympodium 4 rotates mixture of oxygen and nitrogen and is inputted furnace body 21, and wherein amount of oxygen is 90-150ml, and oxygen molecule injection is supreme
Vigorous combustion (similar small explosion), which is formed, with saw blade surface mass on warm saw blade surface forms saw blade surface explosion salient point afterwards,
Make its metal surface that there is good Passivation Treatment characteristic, is entirely capable of reaching phosphatization effect achieved, eliminates acid washing phosphorization
Cost increase caused by process reduces the generation of processing waste.
The principles and effects of the invention, and the implementation that part uses only is illustrated in the above embodiments
Example, and is not intended to limit the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from wound of the present invention
Under the premise of making design, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Claims (6)
1. the gas mixing feedway in saw blade tempering furnace, it is characterised in that: be equipped with spiral helicine confession including inboard wall of furnace body
Tracheae, at least three be axially disposed on inboard wall of furnace body along furnace body pass through the gas service pipes of air supply pipe, face on air supply pipe
The part of burner hearth is equipped with venthole, and the aperture of the venthole is gradually increased along the direction far from inlet end；It further include setting
Closed cylinder outside furnace body, opposite in cylinder to set there are two annular ledge, annular ledge is equipped with bearing block, two bearings
It is equipped between seat and is equipped with mixing axis, cylinder is equipped with the power device of driving mixing axis rotation, and support is equipped with several supplied gas
By recirculation hole, side is equipped with oxygen intake pipe and nitrogen inlet duct on cylinder, oxygen intake pipe be equipped with flowmeter and
Solenoid valve, nitrogen inlet duct are equipped with flowmeter and solenoid valve, mix be respectively equipped on both ends outside bearing block on axis two to
Four turbo blades, the other side is equipped with gas outlet tube on cylinder, and gas outlet tube is connected with air supply pipe in tempering furnace, and two
Ventilating duct is equipped in the outer cover of mixing axis between bracket.
2. the gas mixing feedway in saw blade tempering furnace as described in claim 1, it is characterised in that: on the mixing axis
Several short blades are equipped between two bearing blocks.
3. the gas mixing feedway in saw blade tempering furnace as claimed in claim 2, it is characterised in that: the short blade is in
Spiral distribution is on mixing axis, and short blade is tilted toward airintake direction upwards from root.
4. the gas mixing feedway in saw blade tempering furnace as claimed in claim 3, it is characterised in that: the power device
Including the servo drive motor and booster engine being connected, booster engine is arranged in inner barrel, and the force-output shaft of booster engine passes through a pair
Bevel gear is connected with the mixing axis.
5. the gas mixing feedway in saw blade tempering furnace as claimed in claim 4, it is characterised in that: on the mixing axis
Twice turbo blade is respectively equipped on both ends outside bearing block.
6. the gas mixing feedway in saw blade tempering furnace as claimed in claim 5, it is characterised in that: the nitrogen air inlet
Also it is connected by the circulation air hose of belt controling valve with tempering furnace chamber on pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910414044.1A CN110079657B (en) | 2019-05-17 | 2019-05-17 | Gas mixing and feeding device in saw blade tempering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910414044.1A CN110079657B (en) | 2019-05-17 | 2019-05-17 | Gas mixing and feeding device in saw blade tempering furnace |
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| CN110079657A true CN110079657A (en) | 2019-08-02 |
| CN110079657B CN110079657B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910414044.1A Active CN110079657B (en) | 2019-05-17 | 2019-05-17 | Gas mixing and feeding device in saw blade tempering furnace |
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| JPH07198263A (en) * | 1993-01-13 | 1995-08-01 | Furukawa Electric Co Ltd:The | Nitrogen gas atmosphere heating device |
| US5441581A (en) * | 1994-06-06 | 1995-08-15 | Praxair Technology, Inc. | Process and apparatus for producing heat treatment atmospheres |
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| CN203048996U (en) * | 2012-12-27 | 2013-07-10 | 日照海恩锯业有限公司 | Circular saw blade matrix gas type automated tempering treatment equipment |
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| CN109554520A (en) * | 2019-01-23 | 2019-04-02 | 刘童童 | A kind of mesh-belt type hot air circulation annealing stove |
| CN210341005U (en) * | 2019-05-17 | 2020-04-17 | 张家港艺新金属材料有限公司 | Gas mixing and supplying device in saw blade tempering furnace |
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2019
- 2019-05-17 CN CN201910414044.1A patent/CN110079657B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01184221A (en) * | 1988-01-14 | 1989-07-21 | Komatsu Ltd | Control device for atmosphere in fluidized bed furnace |
| JPH07198263A (en) * | 1993-01-13 | 1995-08-01 | Furukawa Electric Co Ltd:The | Nitrogen gas atmosphere heating device |
| US5441581A (en) * | 1994-06-06 | 1995-08-15 | Praxair Technology, Inc. | Process and apparatus for producing heat treatment atmospheres |
| WO1999011829A1 (en) * | 1997-09-04 | 1999-03-11 | Messer Griesheim Gmbh | Method and device for thermal treatment of parts |
| CN1939656A (en) * | 2005-09-30 | 2007-04-04 | 宝山钢铁股份有限公司 | Production of L80-13Cr oil casings |
| CN101054620A (en) * | 2007-05-18 | 2007-10-17 | 奉化市光亮热处理电炉有限公司 | Steel belt lead-bath quenching and backfire product line decarburization technique and device thereof |
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| CN203048996U (en) * | 2012-12-27 | 2013-07-10 | 日照海恩锯业有限公司 | Circular saw blade matrix gas type automated tempering treatment equipment |
| CN103045838A (en) * | 2013-01-28 | 2013-04-17 | 曹玉贵 | Quenching-tempering rapid cooling equipment and technology of heat treatment production line of bimetal strip sawblade |
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| CN110079657B (en) | 2024-01-26 |
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Address after: 224200 Dongtaiyi new metal materials Co., Ltd. (within Dongtai Xuyuan Machinery Co., Ltd.) National entrepreneurship Park, Xuhe Town, Dongtai City, Yancheng City, Jiangsu Province Applicant after: Dongtaiyi new metal materials Co.,Ltd. Address before: 215636 Zhangjiagang Yixin Metal Material Co., Ltd., Daxin Town, Suzhou City, Jiangsu Province Applicant before: ZHANGJIAGANG YIXIN METAL MATERIAL Co.,Ltd. |
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