CN110423872A - Effectiveness thermostatic oil bath when spring - Google Patents
Effectiveness thermostatic oil bath when spring Download PDFInfo
- Publication number
- CN110423872A CN110423872A CN201910857555.0A CN201910857555A CN110423872A CN 110423872 A CN110423872 A CN 110423872A CN 201910857555 A CN201910857555 A CN 201910857555A CN 110423872 A CN110423872 A CN 110423872A
- Authority
- CN
- China
- Prior art keywords
- oil
- oil groove
- spring
- groove
- effectiveness
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 17
- 241000269799 Perca fluviatilis Species 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000002791 soaking Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 230000003542 behavioural Effects 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000000051 modifying Effects 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
Classifications
-
- 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
- C21D1/34—Methods of heating
- C21D1/44—Methods of heating in heat-treatment baths
- C21D1/50—Oil baths
-
- 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
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
Abstract
Effectiveness thermostatic oil bath disclosed by the invention when being a kind of spring in ageing device field, heating device and control system including oil groove, in oil groove, it further include oil storage tank and agitating device, agitating device is located at oil groove medial surface, the oil storage tank is located at below oil groove, it is set between oil groove and oil storage tank there are two oil pump, respectively oil-feed pump and oil outlet pump, fluid temperature passes through control system and controlled in the work of the oil-feed pump and oil outlet pump and oil groove.The beneficial effects of the present invention are: by increasing oil storage tank and agitating device being arranged in oil groove, and two oil pumps are set between oil groove and oil storage tank, agitating device can improve the uniformity of oil temperature in oil groove, and two oil pumps carry out fuel-displaced and oil inlet simultaneously, to set temperature ageing treatment can be carried out with the device to ensure that the homogeneous constant of oil temperature in oil groove by rapid equalisation when oil temperature fluctuates, the efficiency and quality of spring ageing treatment can be improved, and reduce costs.
Description
Technical field
The present invention relates to effectiveness thermostatic oil baths when ageing device more particularly to a kind of spring.
Background technique
It is generally placed upon in holding furnace when carrying out ageing treatment to spring at present and carries out isothermal holding, temperature control exists
It 80 DEG C (± 1 DEG C), after spring is fixed with fixture, is put into wherein, is kept for 2~3 hours, intensity, the bullet of spring can be improved
Property and dimensional stability.Holding furnace has certain defect as ageing device, and the temperature control of holding furnace gets up to be not sufficiently stable, and
Lower by radiation insulating efficiency, cost is also relatively high.
Thermostatic oil bath is to provide the groove body of steady temperature, is widely used in the neck such as Aeronautics and Astronautics, shipbuilding, information, electronics
Domain, can be used as instrument and meter, electric product, material, components etc. steady damp heat or cyclic damp heat test, humidity gradual change or
Mutant test, to make evaluation to behavioral performance of the product under given environmental condition.The temperature of thermostatic oil bath can be from zero
It is adjustable within the scope of lower 80 DEG C to 400 DEG C, it can be used for spring ageing device, but all kinds of thermostatic oil baths require different, structure is just not yet
Together, Yao Zuowei ageing device need to improve the uniformity of oil temperature and reduce temperature fluctuation.
Summary of the invention
For overcome existing holding furnace in ageing treatment existing low efficiency, it is at high cost the deficiencies of, the present invention to be solved
The technical issues of be: effectiveness thermostatic oil bath when a kind of spring of temperature homogeneous constant is provided.
The technical solution adopted by the present invention to solve the technical problems is:
Effectiveness thermostatic oil bath when spring, heating device and control system including oil groove, in oil groove further include storage
Oil groove and agitating device, agitating device are located at oil groove medial surface, and the oil storage tank is located at below oil groove, oil groove and oil storage tank it
Between set there are two oil pump, respectively oil-feed pump and oil outlet pump, the work of the oil-feed pump and oil outlet pump and oily tank liquid temperature
Degree is controlled by control system.
Further, being equipped with oil groove lid at the top of the oil groove, the inside edge of oil groove lid is equipped with sealing ring, and outside is equipped with
Handle.
Further, the oil groove is double-layer structure, interval is not less than 20mm between ectonexine, therebetween filled with poly-
Urethane thermal insulation material.
Further, the middle and upper part of the oil groove is equipped with oil overflow hole, conduit is equipped at oil overflow hole and is connected with oil storage tank.
Further, the heating device is the heating tube for being evenly arranged in oil groove bottom.
Further, the control system includes the temperature bar being vertically arranged in inside oil groove, it is evenly equipped on temperature bar
The temperature signal of measurement can be converted into thermo-electromotive force signal and pass to control system to control heating device work by multiple thermocouples
Make.
Further, being additionally provided with electromechanical room and operation bench, the control between at the top of the front of oil groove and oil storage tank
System, oil-feed pump and oil outlet pump are all disposed within electromechanical interior, are equipped with maintenance door and fire extinguisher in the side of electromechanical room.
Further, be additionally provided with partition lifting device in the oil groove, the partition lifting device include telescoping mechanism,
Partition, two groups of X-shaped pillars and two groups of base tracks, the base track are located at oil groove bottom, and X-shaped pillar is two and is hinged
Connecting rod, lower end and the base track of two connecting rods be slidably connected, and upper end is slidably connected with the upper track below partition, two
It is equipped with cross bar between the lower end of two corresponding connecting rods in group X-shaped pillar, the telescoping mechanism is controlled by control system, can be driven
Cross bar is moved along bottom slide track telescopic.
Further, the telescoping mechanism is electric hydaulic bar, the pedestal of electric hydaulic bar is fixed in oil groove, is stretched
The end of bar is connected with cross bar, and the moving direction of telescopic rod is consistent with bottom sliding rail glide direction.
Further, the telescoping mechanism includes motor, retarder and screw rod, the free end of screw rod and it is connected in two groups of bottoms
Crossbeam rotation connection between portion's track, the internal thread structure to match with screw rod is equipped at the middle part of the cross bar.
The beneficial effects of the present invention are: by increasing oil storage tank and being arranged agitating device in oil groove, and oil groove with
Two oil pumps are set between oil storage tank, and agitating device can improve the uniformity of oil temperature in oil groove, and two oil pumps are gone out simultaneously
Oil and oil inlet, can when oil temperature fluctuates, rapid equalisation is to set temperature, to ensure that the homogeneous constant of oil temperature in oil groove,
Ageing treatment is carried out with the device, the efficiency and quality of spring ageing treatment can be improved, and is reduced costs.
Detailed description of the invention
Fig. 1 is structure of the invention main view.
Fig. 2 is structure of the invention side view.
Fig. 3 is structure of the invention top view.
Fig. 4 is partition lifting device structure schematic diagram of the present invention.
Label is 1- oil groove, 2- oil storage tank, 3- agitating device, 4- oil-feed pump, 5- oil outlet pump, 6- electromechanics room, 7- behaviour in figure
Control room, 8- partition lifting device, 11- oil groove lid, 12- handle, 13- oil overflow hole, 14- temperature bar, 61- maintenance door, 62- fire extinguishing
Device, 81- partition, 82-X shape pillar, 83- base track, 84- upper track, 85- cross bar, 86- motor, 87- retarder, 88-
Bar, 89- crossbeam.
Specific embodiment
The following further describes the present invention with reference to the drawings.
As shown in Figure 1, Figure 2, Figure 3 shows, effectiveness thermostatic oil bath when spring of the invention, including oil groove 1, in oil groove 1
Heating device and control system further include oil storage tank 2 and agitating device 3, and institute's agitating device 3 is located at 1 medial surface of oil groove, described
Oil storage tank 2 is located at 1 lower section of oil groove, is set between oil groove 1 and oil storage tank 2 there are two oil pump, respectively oil-feed pump 4 and oil outlet pump 5,
Fluid temperature passes through control system and is controlled in the work of the oil-feed pump 4 and oil outlet pump 5 and oil groove 1.
Use process of the invention is: the oil in oil storage tank 2 being evacuated in oil groove 1 by oil-feed pump 4 first, is then controlled
System set point temperature, and oil is heated using heating device, start agitating device 3 in heating process, so that oil uniformly rises
Temperature stops heating after reaching set temperature.Since the residual temperature of heating device acts on, oil temperature also will continue to rise, pass through at this time
4 oil inlet of oil-feed pump is controlled, oil outlet pump 5 is fuel-displaced, using the low temperature coil neutralization oil groove 1 high temperature oil in oil storage tank 2, in agitating device
Temperature rapid equalisation in oil groove 2 can be made to set temperature under the action of 3.Spring perch can be put into after temperature is stablized to carry out
Ageing treatment, in ageing process, by coordinating heating device, oil-feed pump 4 and oil outlet pump 5, can guarantee oil temperature it is constant
80 DEG C (± 1 DEG C), guarantee the temperature requirements of ageing treatment.
Device when oil groove 1 is as ageing treatment, oil groove 1 need enough spaces to accommodate spring perch, but empty
Between be not suitable for again too big, not so energy consumption increases, and is not easy to maintain temperature uniform and constant.Oil groove outer dimension of the invention is
530mm × 400mm × 500mm, since ageing process is up to 3 hours, in order to maintain, temperature is constant in oil groove 1 and protects
Liquid environment is not contaminated, and design has oil groove lid 11 above oil groove 1, and it is close that 11 inside edge of oil groove lid is equipped with sealing ring progress
Envelope, oil groove lid 11 can block air to put out a fire, handle 12 are equipped on the outside of oil groove lid 11, facilitates folding in time when catching fire.
For reduction and air heat-exchange, the oil groove 1 uses double layer design, and interval is not less than 20mm between ectonexine, at it
Between filled polyurethane thermal insulation material.Oil overflow hole 13 is equipped in the middle and upper part of 1 side of oil groove and is connected with oil storage tank 2 by conduit
It connects, when liquid is excessively high in oil groove 1, reaches the position of oil overflow hole 13, extra oil liquid can be led back into oil storage tank 2 automatically.
Heating device is to heat for liquid in oil groove 1, and keep temperature constant within the set range, and heating method uses
Resistance-type heating, heating tube is uniformly arranged rectangular, is placed on oil groove bottom, improves heating uniformity.
Oil pump is that the oil in oil storage tank is transferred in oil groove, the oil of oil groove can also be transported in oil storage tank.This Shen
It is please designed using double oil pumps, oil is transported oil groove by an oil pump, another transports oil groove.Double oil pump designs are mainly used for
Temperature change is controlled, when fluid temperature is excessively high in oil groove 1, hot oil can be transported by oil outlet pump 5, oil-feed pump 4 transports room temperature oil
Method maintain oil groove 1 in fluid temperature it is constant.
The agitating device 3 is a micro-machine, is stirred to liquid in oil groove 1, keeps its temperature uniform, and can
To prevent liquid from burning.Since heating device is placed on 1 bottom of oil groove, fluid temperature unevenness is mainly reflected in Vertical Square in oil groove 1
To, therefore the agitating device 3 designed is located at 1 side of oil groove, and liquid in vertical direction can be driven to mix.
The control system is used to carry out all kinds of state modulators to thermostatic oil bath.Design parameter has temperature, heating rate, guarantor
Warm time, slot inner fluid amount etc..
Wherein, temperature control principle is: being equipped with vertical direction temperature bar 14 inside oil groove 1, is uniformly distributed multiple surveys above
The temperature signal of measurement can be converted into thermo-electromotive force signal by the thermocouple of amount temperature, be turned by electric meter (secondary meter)
It changes the temperature of oil liquid into, and obtains the average value of temperature.After setting required temperature, temperature constant (± 1 can be maintained
DEG C), when temperature is lower than 1 DEG C of set temperature, by increasing heating tube power heating, enter keeping warm mode after arrival set temperature；
When temperature is higher than 1 DEG C of set temperature, heated by stopping, and control oil outlet pump 5 for liquid transporting in oil groove 1 to oil storage tank
2, control oil-feed pump 4 is by liquid transporting to oil groove 1 in oil storage tank 2, after arrival set temperature, into keeping warm mode.And it can
To set dangerous temperature, upon reaching that temperature, will automatically cut off the power.
Heating rate control: can set in heating process, raised temperature per minute.
Soaking time control: since ageing process is up to 3 hours, user can not be kept by equipment always, out
After security consideration, the soaking time for reaching setting, if not continuing to use, keeping warm mode, natural cooling will be stopped.
Tank liquid control: after each ageing treatment, some liquid are taken in federation's adhesion out of, after multiple, liquid in slot
Body just cannot flood spring, can restore liquid level in slot by oil pump.
For convenience of managing concentratedly and manipulating, electromechanical room 6 and behaviour are additionally provided between 2 top of front and oil storage tank of oil groove 1
Platform 7 is controlled, the control system, oil-feed pump 4 and oil outlet pump 5 are all disposed in electromechanical room 6, are equipped with maintenance in the side of electromechanical room 6
Door 61 is also equipped with the emergency sets such as fire extinguisher 62 for equipment repair and maintenance outside electromechanical room 6, improves safety.
Spring perch need to be totally immersed in oil groove when carrying out ageing treatment, placement process needs steadily, due to oil temperature
It is higher, with hand operation than relatively hazardous, by environmental restrictions, hanging device can not be also used at any time.So the application adds in oil groove 1
One partition lifting device 8, the partition lifting device 8 include telescoping mechanism, partition 81, two groups of X-shaped pillars 82 and two groups
Base track 83, to reduce liquid resistance, the partition 81 uses the hardened structure in hole hole, and the base track 83 is located at 1 bottom of oil groove
Portion, X-shaped pillar 82 are two connecting rods being hinged, and lower end and the base track 83 of two connecting rods be slidably connected, upper end and every
The upper track 84 of 81 lower section of plate is slidably connected, and is being equipped with cross in two groups of X-shaped pillars 82 between the lower end of two corresponding connecting rods
Bar 85, the telescoping mechanism are controlled by control system, and cross bar 85 can be driven along 83 telescopic moving of bottom sliding rail.
The working principle of the partition lifting device is: when needing to be put into spring perch, pushing first with telescoping mechanism
To moving in the middle part of bottom sliding rail 83, X-shaped pillar 82 collapses cross bar 85 to middle part, so that the partition 81 at top is driven to move up,
Until exposing liquid level, then spring perch is placed on partition 81, finally recycles telescoping mechanism that cross bar 85 is driven reversely to move
It is dynamic, sink to spring perch steadily in oil groove 1.Partition 81 is risen again after the completion of timeliness, removes spring perch.
Above-mentioned telescoping mechanism can use two kinds of structure types, and one is the telescoping mechanism is electric hydaulic bar, electronic
The pedestal of hydraulic stem is fixed in oil groove 1, and the end of telescopic rod is connected with cross bar 85, the moving direction and bottom sliding rail of telescopic rod
83 glide directions are consistent, mobile using the flexible drive cross bar 85 of electric hydaulic bar；Another kind is as shown in figure 4, the telescopic machine
Structure includes motor 86, retarder 87 and screw rod 88, the free end of screw rod 88 and the crossbeam 89 being connected between two groups of base tracks 83
Rotation connection is equipped with the internal thread structure to match with screw rod 88 at the middle part of the cross bar 85, utilizes feed screw nut's structure band
Dynamic cross bar 85 is moved forward and backward.
The present invention is arranged between oil groove and oil storage tank by increasing oil storage tank and agitating device being arranged in oil groove
Two oil pumps, agitating device can improve the uniformity of oil temperature in oil groove, and two oil pumps carry out fuel-displaced and oil inlet simultaneously, can be in oil
Rapid equalisation is to set temperature when temperature fluctuates, to ensure that the homogeneous constant of oil temperature in oil groove, when being carried out with the device
Effect processing, can be improved the efficiency and quality of spring ageing treatment, and reduce costs, before having good practicability and application
Scape.
Claims (10)
1. effectiveness thermostatic oil bath when spring, special including oil groove (1), the heating device being located in oil groove (1) and control system
Sign is: further including oil storage tank (2) and agitating device (3), the agitating device (3) is located at oil groove (1) medial surface, the oil storage tank
(2) be located at below oil groove (1), set between oil groove (1) and oil storage tank (2) there are two oil pump, respectively oil-feed pump (4) and fuel-displaced
It pumps (5), the work of the oil-feed pump (4) and oil outlet pump (5) and oil groove (1) interior fluid temperature pass through control system and controlled
System.
2. effectiveness thermostatic oil bath when spring as described in claim 1, it is characterized in that: being equipped with oil groove lid at the top of the oil groove (1)
(11), the inside edge of oil groove lid (11) is equipped with sealing ring, and outside is equipped with handle (12).
3. effectiveness thermostatic oil bath when spring as described in claim 1, it is characterized in that: the oil groove (1) is double-layer structure, it is inside and outside
Interval is not less than 20mm between layer, is filled with polyurethane heat insulation material therebetween.
4. effectiveness thermostatic oil bath when spring as described in claim 1 overflows it is characterized in that: the middle and upper part of the oil groove (1) is equipped with
Oilhole (13) is equipped with conduit at oil overflow hole (13) and is connected with oil storage tank (2).
5. effectiveness thermostatic oil bath when spring as described in claim 1, it is characterized in that: the heating device is to be evenly arranged in oil
The heating tube of trench bottom.
6. effectiveness thermostatic oil bath when spring as described in claim 1, it is characterized in that: the control system includes being vertically arranged in
The internal temperature bar (14) of oil groove (1), temperature bar are evenly equipped with multiple thermocouples on (14), can be converted into the temperature signal of measurement
Thermo-electromotive force signal passes to control system to control heating device work.
7. effectiveness thermostatic oil bath when spring as described in claim 1, it is characterized in that: in the front and oil storage tank (2) of oil groove (1)
Electromechanical room (6) and operation bench (7) are additionally provided between top, the control system, oil-feed pump (4) and oil outlet pump (5) are all disposed within
In electromechanical room (6), maintenance door (61) and fire extinguisher (62) are equipped in the side of electromechanical room (6).
8. effectiveness thermostatic oil bath when spring as described in claim 1~7 any one claim, it is characterized in that: the oil
It is additionally provided with partition lifting device (8) in slot (1), the partition lifting device (8) includes telescoping mechanism, partition (81), two groups of X-shapeds
Pillar (82) and two groups of base tracks (83), the base track (83) are located at oil groove (1) bottom, and X-shaped pillar (82) is two
The connecting rod being hinged, lower end and the base track (83) of two connecting rods are slidably connected, the top below upper end and partition (81)
Track (84) is slidably connected, and is being equipped with cross bar (85) between the lower end of two corresponding connecting rods in two groups of X-shaped pillars (82), described
Telescoping mechanism is controlled by control system, and cross bar (85) can be driven along bottom sliding rail (83) telescopic moving.
9. effectiveness thermostatic oil bath when spring as claimed in claim 8, it is characterized in that: the telescoping mechanism is electric hydaulic bar,
The pedestal of electric hydaulic bar is fixed in oil groove (1), and the end of telescopic rod is connected with cross bar (85), the moving direction of telescopic rod and
Bottom sliding rail (83) glide direction is consistent.
10. effectiveness thermostatic oil bath when spring as claimed in claim 8, it is characterized in that: the telescoping mechanism include motor (86),
Retarder (87) and screw rod (88), the free end of screw rod (88) and the crossbeam (89) being connected between two groups of base tracks (83) rotate
Connection is equipped with the internal thread structure to match with screw rod (88) at the middle part of the cross bar (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857555.0A CN110423872A (en) | 2019-09-09 | 2019-09-09 | Effectiveness thermostatic oil bath when spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857555.0A CN110423872A (en) | 2019-09-09 | 2019-09-09 | Effectiveness thermostatic oil bath when spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110423872A true CN110423872A (en) | 2019-11-08 |
Family
ID=68418974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910857555.0A Pending CN110423872A (en) | 2019-09-09 | 2019-09-09 | Effectiveness thermostatic oil bath when spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110423872A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481360A (en) * | 2021-07-02 | 2021-10-08 | 大连环新精密特钢股份有限公司 | Method and device for quickly aging spring steel wire by hot oil |
-
2019
- 2019-09-09 CN CN201910857555.0A patent/CN110423872A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481360A (en) * | 2021-07-02 | 2021-10-08 | 大连环新精密特钢股份有限公司 | Method and device for quickly aging spring steel wire by hot oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kumar et al. | Heat and mass transfer in MHD viscoelastic fluid flow over a vertical cone and flat plate with variable viscosity | |
| CN104048912B (en) | Electric power transformer insulated paper ageing test apparatus and method | |
| CN110423872A (en) | Effectiveness thermostatic oil bath when spring | |
| CN103257104A (en) | Protection material hot-cold pulse fatigue resistance test apparatus | |
| Jangili et al. | Mathematical modeling of entropy generation in magnetized micropolar flow between co-rotating cylinders with internal heat generation | |
| CN103495444A (en) | Low and constant temperature bath and low and constant temperature control method | |
| Hu et al. | Aspect ratio dependence of Rayleigh–Bénard convection of cold water near its density maximum in vertical cylindrical containers | |
| CN204269498U (en) | A kind of die casting die material hot fatigue performance test device | |
| CN203730462U (en) | High-temperature pulsating pressure endurance test device of rubber pipe | |
| CN203419433U (en) | Heat preservation device for electronic ceramic tape-casting slurry | |
| CN106989074A (en) | A kind of the hydraulic oil source system and its control method of the regulation and control of convection type fast temperature | |
| US20150185172A1 (en) | Container Test System | |
| CN204294253U (en) | A kind of constant temperature pearl bath cabinet | |
| CN207114051U (en) | Exact constant temperature case is used in a kind of portable thermal couple/thermal resistance detection | |
| CN210560588U (en) | Spring time-effective constant-temperature oil groove | |
| CN206304773U (en) | A kind of novel constant-temperature water-bath of built-in rack | |
| CN202229975U (en) | Low-temperature experiment box for mechanical performance test of superconducting material | |
| CN202149868U (en) | Temperature control system of mechanical property test system for superconductor material | |
| CN206972629U (en) | A kind of hydraulic oil source system of convection type fast temperature regulation and control | |
| CN202595200U (en) | Double-walled coating liquid storage tank with temperature rising and declining function | |
| CN103881898B (en) | Drip irrigation system tube wall attached biofilm culture apparatus and using method thereof | |
| CN206911380U (en) | A kind of high/low temperature isothermal experiments equipment with magnetic agitation | |
| CN202621394U (en) | Dip coater | |
| CN201140074Y (en) | Portable thermostatic bath | |
| CN203965971U (en) | Sample temperature regulating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |