CN106854692A - Electric heating oil bath furnace - Google Patents
Electric heating oil bath furnace Download PDFInfo
- Publication number
- CN106854692A CN106854692A CN201710146736.3A CN201710146736A CN106854692A CN 106854692 A CN106854692 A CN 106854692A CN 201710146736 A CN201710146736 A CN 201710146736A CN 106854692 A CN106854692 A CN 106854692A
- Authority
- CN
- China
- Prior art keywords
- deep fat
- heater
- electric heating
- oil bath
- oil
- 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.)
- Granted
Links
- 238000005485 electric heating Methods 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000000446 fuel Substances 0.000 claims abstract description 13
- 239000002912 waste gas Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 239000002828 fuel tank Substances 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005482 strain hardening 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of electric heating oil bath furnace, including body of heater, the deep fat bath cabinet of accommodating conduction oil is provided with body of heater, electrical heating elements are provided with deep fat bath cabinet, deep fat bath cabinet is provided with case lid, and case lid is connected with the self-opening closure that can automatically open up case lid, is additionally provided with body of heater to the automatic feed mechanism that workpiece is put into deep fat bath cabinet, and fuel reserve tank and hot oil circulating device, fuel reserve tank and hot oil circulating device are connected with deep fat bath cabinet.A kind of electric heating oil bath furnace of the invention can be heat-treated to workpiece, and can realize automatic loading/unloading.The present invention has preferable thermal effectiveness, can reduce manual labor, the features such as reduce labour cost.
Description
Technical field
The present invention relates to machining equipment field, in particular to a kind of electric heating oil bath furnace.
Background technology
In machining technology field, workpiece is grown after cold working and uses hot-working, and hot-working can make workpiece produce modeling
Property deformation, improve workpiece mechanical performance, hot-working is carried out to workpiece frequently with oil bath furnace to workpiece oil bath, make workpiece produce modeling
Property deformation.
Oil bath furnace is used to carry out lonneal to workpiece, and workpiece is placed in oil bath furnace, and heating is provided with oil bath furnace, electricity
Thermal element can be heated to the conduction oil in oil bath furnace, and workpiece is put into the conduction oil with certain heat, so as to work can be made
Part produces plastic deformation.
In the prior art, oil bath kiln gas is big, and temperature is high, and artificial operation, oil bath are mostly to workpiece is put into oil bath furnace
Case lid is warmmer, and people needs to be removed oil bath case lid with foreign object, operates cumbersome, and is easily hindered by flue gas, artificial loading
Then damage health.
The content of the invention
It is contemplated that solving one of above-mentioned technical problem to a certain extent.
In view of this, the invention provides a kind of electric heating oil bath furnace, the oil bath furnace can be heat-treated to workpiece, and can
Realize automatic loading/unloading.
In order to solve the above technical problems, the present invention provides a kind of electric heating oil bath furnace, including body of heater, appearance is provided with the body of heater
The deep fat bath cabinet of conduction oil is put, electrical heating elements are provided with the deep fat bath cabinet, it is characterised in that the deep fat bath cabinet is provided with
Case lid, the case lid is connected with the self-opening closure that can automatically open up the case lid, is additionally provided with the body of heater to the heat
The automatic feed mechanism and fuel reserve tank and hot oil circulating device of workpiece, the fuel reserve tank and the deep fat are put into oil bath case
EGR is connected with the deep fat bath cabinet.
Further, the self-opening closure includes cursor and cylinder, and the middle part of the cursor passes through pivoting support
It is side walls hinged with the deep fat bath cabinet, the cylinder barrel of the cylinder side walls hinged, cursor one with the deep fat bath cabinet
End is connected with the case lid, and the other end is rotated with the expansion link of the cylinder and is connected, and the expansion link is flexible can to drive described turning
Swing arm is rotated on the pivoting support.
Further, the automatic feed mechanism includes guide rail and the electric block moved along the guide rail, and the guide rail sets
Put the entablature in the body of heater.
Further, the hot oil circulating device includes circular-pump, and the circular-pump is fixed in the body of heater,
Described circular-pump one end is connected by pipeline with the bottom of the deep fat bath cabinet, and the other end passes through pipeline and the hot oil bath
The top connection of case.
Further, being provided with the deep fat bath cabinet can place the workpiece bath basket of workpiece.
Further, the deep fat bath cabinet is provided with the temp-controlling element that can stretch into detection oil temperature in the deep fat bath cabinet.
Further, the upper of furnace body is provided with Waste gas outlet.
Further, the body of heater end is provided with the fire door that workpiece can be sent into the furnace interior.
Further, oil bath furnace cooler is additionally provided with the body of heater, the oiler of the oil bath furnace cooler passes through pipeline
Connected with the hot oil bath box cavity, oil-out passes through pipeline and the fuel reserve tank inner space.
Further, electrical apparatus control equipment, the electrical apparatus control equipment and the automatic lid closing/opening machine are additionally provided with the body of heater
The electrical connection of structure, the electrical heating elements and the hot oil circulating device.
The technical effects of the invention are that：A kind of electric heating oil bath furnace of the invention, in the body of heater of the electric heating oil bath furnace
Deep fat bath cabinet, automatic feed mechanism and self-opening closure are provided with, automatic feed mechanism can be by workpiece feeding to deep fat bath cabinet
Portion, self-opening closure can open the case lid of hot oil bath upper box part, can be to workpiece is put into deep fat bath cabinet, and deep fat bath cabinet passes through
Its internal heating element heater is heated to conduction oil, and workpiece is heat-treated generation plastic deformation in conduction oil.Heat treatment process
It is middle to produce the certain flue gas, deep fat bath cabinet to heat up, manpower labor can be reduced using automatic feed mechanism and self-opening closure
It is dynamic, prevent staff from being scalded and choked by flue gas by deep fat bath cabinet during feeding, so as to the hidden danger that eliminates danger.Separately
Outward, hot oil circulating device can make the conduction oil circulating-heating inside deep fat bath cabinet, so that the conduction oil heat in deep fat bath cabinet
Uniformity, makes thermal effectiveness more preferable.
Brief description of the drawings
Fig. 1 is a kind of front view of electric heating oil bath furnace according to an embodiment of the invention.
Fig. 2 is a kind of left view of electric heating oil bath furnace according to an embodiment of the invention.
Fig. 3 is a kind of top view of electric heating oil bath furnace according to an embodiment of the invention.
Wherein：1- electric blocks；2- guide rails；3- bodies of heater；4- fuel reserve tanks；5- overflow return lines；7- hot oil circulating devices；
8- cold oil magnetic valves；9- temp-controlling elements；10- workpiece bathe basket；11- deep fat bath cabinets；12- cylinders；13- case lids；14- pivoting supports；
15- Waste gas outlets；16- oil bath furnace coolers；18- electrical heating elements；17- cools down water inlet pipe and water outlet pipe；20- checkered steel plates；21- stretches
Contracting bar；22- cursors.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be with
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As depicted in figs. 1 and 2, appearance is provided with a kind of electric heating oil bath furnace for being provided according to the present invention, including body of heater 3, body of heater 3
Put in the deep fat bath cabinet 11 of conduction oil, deep fat bath cabinet 11 and be provided with electrical heating elements 18, the conduction oil in deep fat bath cabinet 11 adds in electricity
Temperature needed for workpiece is heated in the presence of thermal element 18, deep fat bath cabinet 11 is provided with case lid 13, and case lid 13 is connected with can be certainly
The dynamic self-opening closure for opening case lid 13, be additionally provided with body of heater 3 to be put into deep fat bath cabinet 11 workpiece automatic feed mechanism,
And fuel reserve tank 4, hot oil circulating device 7 and overflow return line 5, fuel reserve tank 4, overflow return line 5 and hot oil circulating device 7
It is connected with deep fat bath cabinet 11.
Be provided with a kind of electric heating oil bath furnace of the invention, the body of heater 3 of the electric heating oil bath furnace deep fat bath cabinet 11, it is automatic on
Material mechanism and self-opening closure, automatic feed mechanism can be by workpiece feeding to the top of deep fat bath cabinet 11, and self-opening closure can
The case lid 13 on the top of deep fat bath cabinet 11 is opened, can be to workpiece be put into deep fat bath cabinet 11, deep fat bath cabinet 11 is by its inside
Electrical heating elements 18 are heated to conduction oil, and workpiece is heat-treated generation plastic deformation in conduction oil.Meeting in heat treatment process
Producing certain flue gas, deep fat bath cabinet 11 can be heated up, and manual labor can be reduced using automatic feed mechanism and self-opening closure,
Prevent staff from being scalded and choked by flue gas by deep fat bath cabinet 11 during feeding, so as to the hidden danger that eliminates danger.In addition,
Hot oil circulating device 7 can make the conduction oil circulating-heating inside deep fat bath cabinet 11, so that the heat-conduction oil heat in deep fat bath cabinet 11
Amount uniformity, makes thermal effectiveness more preferable.
As shown in Fig. 2 self-opening closure includes cursor 22 and cylinder 12, the middle part of cursor 22 passes through pivoting support
14 is side walls hinged with deep fat bath cabinet 11, and the cylinder barrel of cylinder 12 is side walls hinged with deep fat bath cabinet 11, the one end of cursor 22 and case
Lid 13 is connected, and the other end is rotated with the expansion link 21 of cylinder 12 and is connected, and expansion link 21 is flexible can to drive cursor 22 being hinged branch
Rotated on seat 14, cursor 22 rotates, the case lid 13 on deep fat bath cabinet 11 can be opened, realize that automation is uncapped function, so as to subtract
Few manual labor.
As shown in figure 1, automatic feed mechanism includes guide rail 2 and the electric block 1 moved along guide rail 2, guide rail 2 is arranged on stove
The entablature of body 3, makes workpiece to be moved along the entablature direction of body of heater 3, and can smooth delivery of power workpiece.
Hot oil circulating device 7 includes circular-pump, and circular-pump is fixed in body of heater 3, and circular-pump one end leads to
Piping is connected with the bottom of deep fat bath cabinet 11, and the other end is connected by pipeline with the top of deep fat bath cabinet 11, circular-pump
The liquid of the upper and lower part of deep fat bath cabinet 11 can be made to be circulated circulation, it is ensured that the inside oil temperature uniformity of deep fat bath cabinet 11,
Make the thermal effectiveness of workpiece more preferably.
As shown in figure 1, be provided with deep fat bath cabinet 11 that the workpiece bath basket 10 of workpiece can be placed, workpiece bath basket 10 can hold work
Part, workpiece bath basket 10 is located at the top of electrical heating elements 18, and workpiece can be made to be located at the top of electrical heating elements 18, can prevent workpiece
Encounter the inwall of electrical heating elements 18 or deep fat bath cabinet 11, when workpiece is smaller, multiple workpiece can be held using workpiece bath basket 10,
Multiple workpiece disposably can be conveniently added, heat treatment efficiency is improved.
As shown in figure 1, deep fat bath cabinet 11 is provided with the temp-controlling element 9 that can stretch into detection oil temperature in deep fat bath cabinet 11, temperature control
Oil temperature inside the measurable deep fat bath cabinet 11 of element 9, so as to the oil temperature is transmitted to master control system, master control system by the value with
The temperature value of setting is compared, and when the temperature value is less than design temperature, then master control system control electrical heating elements 18 continue
Conduction oil is heated, if the temperature reaches the temperature value of setting, stops heating, the master control system is also associated with alarm
Device, when heat conduction oil temperature is too high, then alarm will alarm, so as to ensure the temperature of conduction oil and the temperature value one of setting
Cause, make the effect of heat treatment of workpieces more preferable.
As shown in Fig. 2 the top of body of heater 3 is provided with Waste gas outlet 15, after workpiece is put into deep fat bath cabinet 11, hot place is carried out
Reason, can produce flue gas, flue gas to be discharged from body of heater 3 by Waste gas outlet 15 during heat treatment, and by gas sampling
Device is collected, and effectively prevents flue gas from being polluted to the harm of human body and to environment.
Being additionally provided with the body of heater 3 can be stained with workpiece oily Ling and enter Ling food trays in the fuel reserve tank, so as to save conduction oil.
The end of body of heater 3 is provided with can be by the fire door of workpiece feeding body of heater 3 inside, and fire door in body of heater 3 for sending into workpiece.
As shown in figure 3, be additionally provided with oil bath furnace cooler 16 in body of heater 3, the oiler of oil bath furnace cooler 16 by pipeline with
The inner space of deep fat bath cabinet 11, oil-out is connected by pipeline with fuel reserve tank 4, and oil bath furnace cooler 16 is provided with cooling Inlet and outlet water
Pipe 17, by cold water is passed through in cooling water inlet pipe and water outlet pipe 17, being capable of achieving its cooling effect to conduction oil, oil bath furnace cooler 16
For being cooled down to the liquid inside deep fat bath cabinet 11, after heat treatment of workpieces is finished, cold oil magnetic valve 8 can be opened, make heat
Conduction oil in oil bath case 11 enters in oil bath furnace cooler 16, and oil bath furnace cooler 16 can rapidly be freezed to conduction oil,
And by the conduction oil feeding fuel reserve tank 4 after refrigeration, used for next time.
Electrical apparatus control equipment, electrical apparatus control equipment and self-opening closure, electrical heating elements and heat are additionally provided with body of heater 3
Oil circulation device 7 is electrically connected, and electrical apparatus control equipment control self-opening closure is uncapped the heating-up temperature of time, electrical heating elements,
Electrical apparatus control equipment also can control the opening and closing of the circular-pump in hot oil circulating device 7, so that in controllable deep fat bath cabinet 11
Conduction oil circulate.
A most preferred embodiment of the invention, the base plate of body of heater 3 is checkered steel plate 20, and checkered steel plate 20 has high-strength
The characteristics of degree, high rigidity and stronger rigidity, and with anti-skidding effect, a small amount of fluid can be also gathered on checkered steel plate 20.
A kind of electric heating oil bath furnace of the invention, its operation principle is as follows：
Fire door is opened, by workpiece hanging on electric block 1, electric block 1 is by workpiece transport to the upper of deep fat bath cabinet 11
Side；
Expansion link 21 in the cylinder 12 of self-opening closure is bounced back, and cursor 22 is rotated around pivoting support 14, cursor
22 drive the lifting of case lid 13, so as to open the case lid 13 on the top of deep fat bath cabinet 11；
Electrical heating elements 18 are powered, and electrical heating elements 18 are heated to conduction oil；
Circulation and Hot Oil Spray pump work, makes the conduction oil circulation of the upper and lower part of deep fat bath cabinet 11, makes in deep fat bath cabinet 11
The even heat of portion's conduction oil everywhere is consistent；
Electric block 1 is put the workpiece in deep fat bath cabinet 11；
Workpiece is heat-treated in deep fat bath cabinet 11, after a period of time, by electric block 1 by workpiece from deep fat bath cabinet
Taken out in 11.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the present invention, protection model of the invention
Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (10)
1. a kind of electric heating oil bath furnace, including body of heater, is provided with the deep fat bath cabinet of accommodating conduction oil, the deep fat bath cabinet in the body of heater
Inside it is provided with electrical heating elements, it is characterised in that the deep fat bath cabinet is provided with case lid, and the case lid is connected with can automatically open up institute
State the self-opening closure of case lid, be additionally provided with the body of heater to be put into the deep fat bath cabinet workpiece automatic feed mechanism,
And fuel reserve tank and hot oil circulating device, the fuel reserve tank and the hot oil circulating device are connected with the deep fat bath cabinet.
2. electric heating oil bath furnace according to claim 1, it is characterised in that the self-opening closure includes that cursor is gentle
Cylinder, the middle part of the cursor is side walls hinged with the deep fat bath cabinet by pivoting support, the cylinder barrel of the cylinder with it is described
Deep fat bath cabinet it is side walls hinged, described cursor one end is connected with the case lid, and the expansion link of the other end and the cylinder is rotated
Connection, the expansion link is flexible can to drive the cursor to be rotated on the pivoting support.
3. electric heating oil bath furnace according to claim 1, it is characterised in that the automatic feed mechanism includes guide rail and along institute
The electric block of guide rail movement is stated, the guide rail is arranged on the entablature of the body of heater.
4. electric heating oil bath furnace according to claim 1, it is characterised in that the hot oil circulating device includes Circulation and Hot Oil Spray
Pump, the circular-pump is fixed in the body of heater, and described circular-pump one end passes through pipeline and the deep fat bath cabinet
Bottom is connected, and the other end is connected by pipeline with the top of the deep fat bath cabinet.
5. electric heating oil bath furnace according to claim 1, it is characterised in that being provided with the deep fat bath cabinet can place workpiece
Workpiece bathes basket.
6. electric heating oil bath furnace according to claim 1, it is characterised in that the deep fat bath cabinet is provided with and can stretch into the heat
The temp-controlling element of detection oil temperature in oil bath case.
7. electric heating oil bath furnace according to claim 1, it is characterised in that the upper of furnace body is provided with Waste gas outlet.
8. electric heating oil bath furnace according to claim 1, it is characterised in that the body of heater end is provided with can send workpiece into institute
State the fire door of furnace interior.
9. electric heating oil bath furnace according to claim 1, it is characterised in that oil bath furnace cooler is additionally provided with the body of heater,
The oiler of the oil bath furnace cooler is connected by pipeline with the hot oil bath box cavity, and oil-out passes through pipeline and the storage
Fuel tank inner chamber is connected.
10. electric heating oil bath furnace according to claim 1, it is characterised in that be additionally provided with electrical apparatus control equipment in the body of heater,
The electrical apparatus control equipment is electrically connected with the self-opening closure, the electrical heating elements and the hot oil circulating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146736.3A CN106854692B (en) | 2017-03-13 | 2017-03-13 | Electric heating oil bath furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710146736.3A CN106854692B (en) | 2017-03-13 | 2017-03-13 | Electric heating oil bath furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106854692A true CN106854692A (en) | 2017-06-16 |
| CN106854692B CN106854692B (en) | 2019-03-19 |
Family
ID=59125133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710146736.3A Expired - Fee Related CN106854692B (en) | 2017-03-13 | 2017-03-13 | Electric heating oil bath furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106854692B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112063828A (en) * | 2020-09-23 | 2020-12-11 | 广州初曲科技有限公司 | Anti-oxidation pressure-regulating low-temperature annealing furnace for metal wire ropes |
| CN113358519A (en) * | 2021-08-10 | 2021-09-07 | 贝士德仪器科技(北京)有限公司 | High-pressure gas adsorption instrument with oil bath thermostat |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1718779A (en) * | 1926-06-16 | 1929-06-25 | Warner Gear Co | Heat-drawing furnace |
| US2280470A (en) * | 1939-07-12 | 1942-04-21 | Bridges Walter | Treatment of metals |
| CN201212047Y (en) * | 2008-06-26 | 2009-03-25 | 陆银河 | Full-automatic high frequency quick-speed annealing machine |
| CN102268523A (en) * | 2011-07-13 | 2011-12-07 | 天津阿瑞斯工业炉有限公司 | Continuous quenching line for large-diameter tube and bar materials |
| CN203976859U (en) * | 2014-07-24 | 2014-12-03 | 陈向荣 | A kind of energy-saving low-temperature tempering oil liquid furnace |
| CN204714860U (en) * | 2015-06-15 | 2015-10-21 | 江苏正通宏泰股份有限公司 | A kind of well annealing furnace |
| CN206751867U (en) * | 2017-03-13 | 2017-12-15 | 江苏中热机械设备有限公司 | Electric heating oil bath furnace |
-
2017
- 2017-03-13 CN CN201710146736.3A patent/CN106854692B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1718779A (en) * | 1926-06-16 | 1929-06-25 | Warner Gear Co | Heat-drawing furnace |
| US2280470A (en) * | 1939-07-12 | 1942-04-21 | Bridges Walter | Treatment of metals |
| CN201212047Y (en) * | 2008-06-26 | 2009-03-25 | 陆银河 | Full-automatic high frequency quick-speed annealing machine |
| CN102268523A (en) * | 2011-07-13 | 2011-12-07 | 天津阿瑞斯工业炉有限公司 | Continuous quenching line for large-diameter tube and bar materials |
| CN203976859U (en) * | 2014-07-24 | 2014-12-03 | 陈向荣 | A kind of energy-saving low-temperature tempering oil liquid furnace |
| CN204714860U (en) * | 2015-06-15 | 2015-10-21 | 江苏正通宏泰股份有限公司 | A kind of well annealing furnace |
| CN206751867U (en) * | 2017-03-13 | 2017-12-15 | 江苏中热机械设备有限公司 | Electric heating oil bath furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112063828A (en) * | 2020-09-23 | 2020-12-11 | 广州初曲科技有限公司 | Anti-oxidation pressure-regulating low-temperature annealing furnace for metal wire ropes |
| CN113358519A (en) * | 2021-08-10 | 2021-09-07 | 贝士德仪器科技(北京)有限公司 | High-pressure gas adsorption instrument with oil bath thermostat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106854692B (en) | 2019-03-19 |
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Granted publication date: 20190319 |