CN2669117Y - Aluminium alloy air circulating furnace - Google Patents
Aluminium alloy air circulating furnace Download PDFInfo
- Publication number
- CN2669117Y CN2669117Y CNU2003201044038U CN200320104403U CN2669117Y CN 2669117 Y CN2669117 Y CN 2669117Y CN U2003201044038 U CNU2003201044038 U CN U2003201044038U CN 200320104403 U CN200320104403 U CN 200320104403U CN 2669117 Y CN2669117 Y CN 2669117Y
- Authority
- CN
- China
- Prior art keywords
- heater
- furnace
- aluminium alloy
- air circulating
- circulating oven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Tunnel Furnaces (AREA)
- Furnace Details (AREA)
Abstract
The utility model discloses an aluminium alloy air circulating furnace, which comprises a steel structure rack, a ventilation device, a movable water tank, a furnace body, a lifting mechanism, a furnace door device, a heater and an electric control system, wherein the water tank is arranged at the lower part of the furnace body corresponding to a furnace mouth positively. The furnace body is provided with a temperature regulator. A liner composed of aluminium silicate fibrofelt, aluminium silicate cellucotton and a hard fibre arc-shaped plate is arranged in the furnace body. Electrical resistance is formed into a corrugated shape and is fixed on a wind circulating channel of the side wall of the furnace body by an insulator. The utility model can suppress effectively the phenomenon of temperature inflation and guarantee the high standard of the uniformity of furnace temperature from 3 DEG to 3 DEG below zero, and has the advantages of high level of automation and complete achievement of the time requirement of 7 seconds during a workpiece transition process. The quality of aluminum product pieces produced by the utility model is stable, and the internal metallurgical structure of the pieces is in a better state. The aluminum product pieces can completely satisfy the special requirements in such industries as aviation and astronavigation.
Description
Technical field the utility model relates to a kind of metal heat treatmet air circulating oven, especially a kind of aluminium alloy air circulating oven.
The background technology air circulating oven is the important specific equipment that aluminium alloy is heat-treated.Its principle all is to utilize heater heats, utilizes the hot air circulation convection current again, and with pending aluminium element even heating, afterwards with in the quick dip quench tank of aluminium element, fast cooling is to reach higher intensity, density etc.The furnace temperature deviation of domestic and international reasonable air circulating oven generally is ± 5 ℃.And handle air standard (HB5354-94) be to the requirement of first-class stove according to Sinomania: A, in effective heating zone, the furnace temperature uniformity coefficient is ± 3 ℃, temperature-controlled precision is ± 1 ℃ (first-class stove standard of Boeing Co. be ± 2.8 ℃).B, workpiece transfer time, all submerge this section period the hardening liquid to workpiece from door opened, be controlled in 7 seconds.For above two indexs, domestic existing installation all is beyond one's reach, so be the requirement that is difficult to reach the Aeronautics and Astronautics field through the aluminium element of domestic existing installation heat treated.Existing recirculation still all not consider substantially and can't solve because the phenomenon that the caused temperature of friction between air-flow progressively raises, i.e. " temperature waft phenomenon ".In high wind round-robin air circulating oven, because sharp impacts and friction between the air-flow molecule can be converted into heat energy with 80% of power of motor, as time passes, the gas temperature liter that progressively wafts.Even more important a bit is: for the heat that collision and friction produced between the gas molecule, conventional temperature control instrument is uncontrollable, so have stove now and do not reach basically ± 3 ℃ insulation requirement.And domestic existing installation generally also is that level of automation is lower by manual operation, and in the body of heater Heater Design with on arranging, traditional mode is all adopted in selecting for use of furnace lining material, also can't reach above-mentioned two indexs on structure.With the well heater is example: the well heater of existing installation generally all adopts the resistance wire spirrillum to be inserted on the vitrified pipe, and shelf is fixed; Or insert to hang with both sides, squirrel-cage well heater top; Or, be seated in the top with box resistive heating interchanger, by hot air circulation conduction heat; Or put ceramic tile with high sticking pottery and support fixed heater etc.
Summary of the invention the utility model provides the air circulating oven that a kind of furnace temperature uniformity coefficient is very high, the workpiece transfer time is short, level of automation is very high in order to overcome the above deficiency of existing air circulating oven.
The technical solution of the utility model: a kind of aluminium alloy air circulating oven, comprise motor, steel frame, ventilation plant, mobile tank, body of heater, lifting mechanism, stove gate device, well heater and electric control system, its improvements are: described mobile tank is positioned at the body of heater bottom over against the fire door place; Body of heater is provided with thermoswitch, and the furnace lining of being made up of alumina silicate fiber felt, aluminosilicate fiber cotton and hard fiber arc is housed in the body of heater; Resistive band is corrugated, is fixed on insulator on the wind circulation duct of sidewall of the furnace body;
Described thermoswitch is made up of YE and air dish valve;
Described mobile tank comprises trolley frame, is arranged on tank and step-down gear on the trolley frame; Tank is provided with heating tube and whipping appts;
Described stove gate device comprises track, Vulcan gear and fire door;
Be provided with blast inlet in the body of heater bottom.
Aluminium alloy air circulating oven of the present utility model has following advantage:
1. can effectively suppress the temperature phenomenon of wafing, guarantee that the furnace temperature uniformity coefficient is ± 3 ℃ higher standard.
Whole plant must manual operation except charging and discharging, the PLC time variable control of all the other actions, process, level of automation is very high, can reach the time requirements in 7 seconds in the workpiece transfer process fully.
3. whole plant compact construction, reasonable in design, moderate; Through the aluminum products spare steady quality of this device processes, inside metallographic is in preferable states, can satisfy the special requirement of Aeronautics and Astronautics cause fully.
The utility model is described in further detail below in conjunction with accompanying drawing for description of drawings:
Fig. 1 is the utility model recirculation still front view (partly cuing open).
Fig. 2 is body of heater (part a 5) structural representation.
Fig. 3 is mobile tank (part a 4) front view.
Fig. 4 is mobile tank (part a 4) vertical view.
Fig. 5 is mobile tank (part a 4) left view.
Fig. 6 is well heater (part a 8) structural representation.
Fig. 7 is stove gate device (part a 7) structural representation.
Embodiment (referring to Fig. 1), Fig. 1 is the utility model recirculation still front view.1-motor, 2-steel frame, 3-ventilation plant, 4-move tank, 5-body of heater, 6-lifting mechanism, 7-stove gate device, 8-well heater.
Recirculation still of the present utility model is the overhead system structure, mainly is made up of integral parts such as motor 1, steel frame 2, ventilation plant 3, mobile tank 4, body of heater 5 (comprising furnace shell and furnace lining), lifting mechanism 6 (mainly being made up of a hydraulic efficiency plant and times ski-running wheels), stove gate device 7, well heater 8, electric control systems.
Steel frame 2 of the present utility model adopts the overhead system structure, is welded by shaped steel, sheet material, and body of heater 5 is installed with on the steel construction shelf, fire door is downward, and mobile tank 4 is positioned at body of heater 5 times, and over against the fire door place, mobile tank 4 and bin can move back and forth voluntarily.
The main effect of lifting mechanism 6 is to move, shift workpiece, for guaranteeing that workpiece is from the door opened effect that has particularly important to workpiece the time the hardening liquid of all submerging in 7 seconds.This lifting mechanism 6 utilizes times principle that the ski-running wheels can gather way by the physical construction of traditional of the prior art times of ski-running wheels of hydrostatic transmission cooperation, realizes that workpiece falls soon, rises slowly, satisfies the needs of this recirculation still.In this recirculation still, the keying of the lifting of lifting mechanism 6, stove gate device 7, the left and right sides translation of bearing material dolly etc. all by hydrostatic transmission be hydrauliccylinder piston controlled stretch out or withdraw control.In lifting mechanism 6, for moving-member, except that adopting mechanical position limitation, all can adopt induction type again near switch, have an accident to prevent mechanical collision, malfunctioning switch.
Electric control system is divided into temperature control and mechanical action control two parts, temperature control part divides employing PID continuously automatic regulative mode, power element is that silicon control zero-cross triggers: with the Temperature Fuzzy Control theory is core, all can regulate in real time temperature in the stove under the different operating modes, heat up by preset program.Temperature control instrument can select for use Japan to produce 0.1 class precision FP21 intelligent digital display instrument, and the thermometric alarm is selected for use Japan to produce same model 0.5 class precision SR73 digital display to show that instrument makes monitoring, alarming usefulness, and registering instrument is with 4 high precision registering instruments of μ R180.The mechanical action Controlling System, mechanical actions such as the major control body of heater is door opened, the YE of temperature regulation mouth 30 and the unlatching of air butterfly valve, mobile tank, bin lifting, blower fan variable-speed operation can adopt the P.L.C programmable controller of PANASONIC electric corporation.Temperature control and mechanical action control in the electric control system all are prior aries, are not further described at this.
(referring to Fig. 2), Fig. 2 are the furnace binding synoptic diagram.9-lightening casting material, 10-alumina silicate fiber felt, 11-aluminosilicate fiber cotton, 12-hard fiber arc.The furnace lining of packing in the body of heater 5, furnace lining mainly is made up of alumina silicate fiber felt 10, aluminosilicate fiber cotton 11, hard fiber arc 12, adopts whole manufacturing of vacuum forming to form, and has excellent insulating, heat insulating ability.
(referring to Fig. 3,4,5), Fig. 3,4, the 5th, mobile sink structure figure.Mobile tank 4 mainly comprises 13-trolley frame, 14-tank, 15-heating coil, 16-whipping appts, 17-step-down gear.Tank 14 places on the trolley frame 13, moves back and forth with it, except that tank 14, also leaves the station of workpiece on the trolley frame 13, makes things convenient for the workpiece input and output material.Tank 14 is provided with heating coil 15, is furnished with whipping appts 16, heating coil 15 is used for the heating quenching medium, can select modes such as steam or electrically heated for use, whipping appts 16 stirs in the duct that leads to the tank middle part, the mobile surge rolls around forming from bottom to top, carry out the heat exchange of quenchant very equably, improve the quality of heat treated article greatly, step-down gear 17 is used to drive whole device and moves back and forth.
(referring to Fig. 6), Fig. 6 are resistive band 18 structural representations of well heater 8.Resistive band 18 is corrugated, is fixed on insulator 19 on the wind circulation duct of sidewall of the furnace body, and heating power is the non-uniform Distribution state, can guarantee the transmission of heat by convection of body of heater inner chamber and temperature evenly.
(referring to Fig. 7), Fig. 7 are the stove gate device structural representations.Stove gate device mainly comprises track 20, Vulcan gear 21, fire door 22.Hydraulic pressure by Vulcan gear 21 pushes away cylinder two-way function power, allows fire door 22 finish level and up-and-down movement on track 20.When opening fire door, push away the effect of cylinder pulling force, mechanism descends, and when closing fire door, mechanism is pushing away under the cylinder thrust and can rise, and forms the plane under the cylinder reactive force and compresses sealing pushing away, and guarantees that hot gas does not leak in the stove.
(referring to Fig. 1) as further improvement of the utility model, can be provided with bottom blast inlet 23 in the bottom of body of heater 5, and be equipped with corresponding gas blower.After a kind of heat treatment step finishes, in order to lower the temperature as early as possible, can open bottom blast inlet 23 to enter another kind of heat treatment step, in body of heater 5, be blown into cold wind, play the effect of fast cooling.
Claims (5)
1. aluminium alloy air circulating oven, comprise motor (1), steel frame (2), ventilation plant (3), mobile tank (4), body of heater (5), lifting mechanism (6), stove gate device (7), well heater (8) and electric control system, it is characterized in that: described mobile tank (4) is positioned at body of heater (5) bottom over against the fire door place; Body of heater (5) is provided with thermoswitch (30), and the furnace lining of being made up of ca silicate fibre felt (10), aluminosilicate fiber cotton (11) and hard fiber arc (12) is housed in the body of heater (5); The resistive band (18) of well heater (8) is corrugated, is fixed on insulator (19) on the wind circulation duct of sidewall of the furnace body.
2. aluminium alloy air circulating oven according to claim 1 is characterized in that: described thermoswitch (30) is made up of YE and air dish valve.
3. aluminium alloy air circulating oven according to claim 1 is characterized in that: described mobile tank (4) comprises trolley frame (13), is arranged on tank (14) and step-down gear (17) on the trolley frame (13); Tank (14) is provided with heating tube (15) and whipping appts (16).
4. aluminium alloy air circulating oven according to claim 1 is characterized in that: described stove gate device (7) comprises track (20), Vulcan gear (21) and fire door (22).
5. according to the arbitrary described aluminium alloy air circulating oven of claim 1 to 4, it is characterized in that: be provided with blast inlet (23) in body of heater (5) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201044038U CN2669117Y (en) | 2003-12-13 | 2003-12-13 | Aluminium alloy air circulating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201044038U CN2669117Y (en) | 2003-12-13 | 2003-12-13 | Aluminium alloy air circulating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2669117Y true CN2669117Y (en) | 2005-01-05 |
Family
ID=34438574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201044038U Expired - Fee Related CN2669117Y (en) | 2003-12-13 | 2003-12-13 | Aluminium alloy air circulating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2669117Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432274C (en) * | 2005-12-01 | 2008-11-12 | 重庆飞达电炉有限公司 | Aluminium alloy solutionizing, aging gas-heating processing furnace |
| CN101982585A (en) * | 2010-12-03 | 2011-03-02 | 南京际华三五二一特种装备有限公司 | Heat holding furnace for drafting machine |
| CN102445082A (en) * | 2010-10-14 | 2012-05-09 | 佛山市通润热能科技有限公司 | Connection relation of furnace door opening and closing system and aluminum rod |
| CN106702134A (en) * | 2016-12-13 | 2017-05-24 | 苏州新长光热能科技有限公司 | Lifting type sheet heating device |
-
2003
- 2003-12-13 CN CNU2003201044038U patent/CN2669117Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432274C (en) * | 2005-12-01 | 2008-11-12 | 重庆飞达电炉有限公司 | Aluminium alloy solutionizing, aging gas-heating processing furnace |
| CN102445082A (en) * | 2010-10-14 | 2012-05-09 | 佛山市通润热能科技有限公司 | Connection relation of furnace door opening and closing system and aluminum rod |
| CN102445082B (en) * | 2010-10-14 | 2013-08-21 | 佛山市通润热能科技有限公司 | Connection structure of furnace door opening and closing system and aluminum rod |
| CN101982585A (en) * | 2010-12-03 | 2011-03-02 | 南京际华三五二一特种装备有限公司 | Heat holding furnace for drafting machine |
| CN101982585B (en) * | 2010-12-03 | 2012-09-12 | 南京际华三五二一特种装备有限公司 | Heat holding furnace for drafting machine |
| CN106702134A (en) * | 2016-12-13 | 2017-05-24 | 苏州新长光热能科技有限公司 | Lifting type sheet heating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102219364B (en) | Bottom lifting type resistance heating annealing furnace | |
| CN1908203A (en) | Double layer roller bottom type continuous spheroidizing annealing furnace | |
| CN102021297B (en) | Aircraft skin aging furnace | |
| CN206207993U (en) | Multifunctional box resistance furnace | |
| CN202450118U (en) | Tray-pushing solidifying heat treatment production line | |
| CN101407899B (en) | Composite type annealing furnace | |
| CN209085317U (en) | Nitriding furnace inner roof brick closing device | |
| CN101586225A (en) | A kind of method for vacuum hardening and used vacuum hardening device | |
| CN2669117Y (en) | Aluminium alloy air circulating furnace | |
| CN207074008U (en) | High temperature elevator furnace | |
| CN206377994U (en) | A kind of Intelligent box type resistance furnace | |
| CN209085329U (en) | Nitriding furnace cooling device | |
| CN2233297Y (en) | Movable mould face drying device | |
| CN207079262U (en) | Integral type glowing furnace | |
| CN208700573U (en) | A kind of reacting furnace producing nitride | |
| CN218646017U (en) | Sintering furnace | |
| CN202099187U (en) | Electric heating lifting type annealing furnace | |
| CN103397153B (en) | Isothermal air circulation heat-treatment electric furnace | |
| CN110079653A (en) | A kind of reloading large-scale vacuum heat-treatment furnace | |
| CN201376983Y (en) | Vacuum quenching device | |
| CN108285962A (en) | A kind of upright quenching furnace | |
| CN201809405U (en) | Aging furnace for aircraft skin | |
| CN108355932B (en) | Metal plate coating curing device | |
| CN208649449U (en) | Nitriding furnace is quickly cooled down circulator | |
| CN2177019Y (en) | Cover type bright annealing furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050105 Termination date: 20111213 |