CN105004178B - External-heat vacuum heat tank - Google Patents
External-heat vacuum heat tank Download PDFInfo
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- CN105004178B CN105004178B CN201510508004.5A CN201510508004A CN105004178B CN 105004178 B CN105004178 B CN 105004178B CN 201510508004 A CN201510508004 A CN 201510508004A CN 105004178 B CN105004178 B CN 105004178B
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- tank body
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Abstract
A kind of vacuum heat tank of the external-heat disclosed by the invention for being heat treatment equipment, including tank body, the tank base sealing, open top, provided with the vacuum elements being tightly connected with tank body at opening at the top of the tank body, vacuum elements have the exhaust tube being connected with tank interior, and the periphery at the middle part of the tank body is provided with the resistance to thermal chuck for being used for being placed in resistance stove gate.The beneficial effects of the invention are as follows：It is simple in construction, it is easy to manufacture, simple and convenient operation and maintenance, in vacuum tank external heat vacuum discharge phenomenon will not occur for electric heating element, also without electrical problems such as other short circuit, carbon distributions, and workpiece is sealed in retort, it will not be chemically reacted with electric heating element, furnace lining etc., production safety is reliable, and vacuum tank volume is small, annex is few in tank, easily, rate of air sucked in required is few for vacuum sealing, easily reaches required vacuum.
Description
Technical field
The present invention relates to the vacuum heat tank of heat treatment equipment, more particularly to a kind of external-heat.
Background technology
Modern vacuum heat treatment technics is the advanced technology of material modification, i.e., carry out to machined part under vacuum conditions just
Fire, annealing, quenching, tempering etc. heat treatment, vacuum heat treatment technology have non-oxidation, without decarburization, have degreasing, degasification, energy-conservation
Cleanliness without any pollution, the advantages of nuisanceless, automaticity is high, material surface quality after vacuum heat is good, it is small, comprehensive to deform
Close excellent performance, service life long, precision is high, hence in so that vacuum heat treatment technology becomes the focus of Overseas Development.But pass
Internal heat type vacuum heat device structure of uniting is complex, and annex is too many in tank, easily causes vacuum discharge phenomenon, while internal electrical equipment
Circuit is more, there is certain potential safety hazard during use, and higher to small parts vacuum heat cost, is unfavorable for
The popularization and application of vacuum heat treatment technology.
The content of the invention
To overcome existing internal heat type vacuum heat device complicated, the deficiency such as use cost height, the present invention to be solved
Technical problem be：A kind of external-heat vacuum heat tank simple in construction, easy to use is provided.
The technical solution adopted for the present invention to solve the technical problems is：External-heat vacuum heat tank, including tank body, institute
State at the opening at the top of tank base sealing, open top, the tank body provided with the vacuum elements being tightly connected with tank body, pumping
Component has the exhaust tube being connected with tank interior, and the periphery at the middle part of the tank body, which is provided with, to be used to be placed in resistance stove gate
Resistance to thermal chuck.
It is further that the vacuum elements also include sealing flange, the one of flange plate of sealing flange is located at tank body
At the opening at top, another flange plate is connected with exhaust tube, and the face that two flange plates fit is provided with sealing ring.
It is further that the one end of the exhaust tube away from sealing flange is provided with suction interface, suction interface and exhaust tube
Connected by sealing flange.
It is further that the resistance to thermal chuck includes card case and refractory brick, the card case is fixed on tank body periphery, refractory brick
Abut on the outer wall of tank body, and upper end is located in card case, and lower end is exposed and with pyramidal structure.
It is further that water cooling box is additionally provided with the tank body, the water cooling box is located at the top of tank body and abuts in tank
External wall, the lower end of water cooling box is provided with water inlet, and upper end is provided with delivery port.
It is further that thermal insulation layer is provided between the water cooling box and resistance to thermal chuck.
It is further that the thermal insulation layer includes ceramic fiber blanket, graphite felt and shell, ceramic fiber blanket abuts in tank body
On outer wall, graphite felt is wrapped in ceramic fiber blanket periphery, and ceramic fiber blanket and graphite felt are enclosed in interior by shell positioned at outermost layer
And be fixed on tank body.
It is further that the upper end of the water cooling box connects together water cooling box with tank body provided with bracket, under water cooling box
Flange is provided between end and the shell of thermal insulation layer and is connected together by bolt, the shell of thermal insulation layer and the card of the resistance to thermal chuck in lower section
Flange also is provided between case and is connected together by bolt.
The beneficial effects of the invention are as follows：It is simple in construction, it is easy to manufacture, simple and convenient operation and maintenance, electric heating element is outside vacuum tank
Heating, will not occur vacuum discharge phenomenon, also without electrical problems such as other short circuit, carbon distributions, and workpiece is sealed in retort,
It will not be chemically reacted with electric heating element, furnace lining etc., production safety is reliable, and vacuum tank volume is small, and annex is few in tank, and vacuum is close
Envelope is easy, and rate of air sucked in required is few, easily reaches required vacuum.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
It is 1- tank bodies to be marked in figure, 2- vacuum elements, the resistance to thermal chucks of 3-, 4- air extraction connectors, 5- water cooling boxes, 6- thermal insulation layers,
7- brackets, 8- flanges, 21- exhaust tubes, 22- sealing flanges, 23- sealing rings, 31- card casees, 32- refractory brick, 41- sealing flanges,
51- water inlets, 52- delivery ports, 61- ceramic fiber blankets, 62- graphite felts, 63- shells.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention is included at the top of tank body 1, the bottom seal of tank body 1, open top, the tank body 1
Provided with the vacuum elements 2 being tightly connected with tank body 1 at opening, vacuum elements 2 have the exhaust tube with being connected inside tank body 1
21, the periphery at the middle part of the tank body 1 is provided with the resistance to thermal chuck 3 for being used for being placed in resistance stove gate.Tank body 1 can use austenite
Steel plate is formed with argon arc welding, lower compared to once-forming cylinder can body cost.It is living between vacuum elements 2 and tank body 1
Dynamic connection, can use lower pumping component 2, is put into pending part when using.Resistance to thermal chuck 3 is mainly used in putting whole tank body 1
Put at resistance stove gate, to be heated to tank body 1.The use process of the present invention is first to remove vacuum elements 2, from tank
Pending part is put at the opening of body 1, vacuum elements 2 are then closed, the exhaust tube 21 on vacuum elements 2 is connected to machinery
Whole tank body 1, is then placed on resistance fire door by vavuum pump again, resistance to thermal chuck 3 is alignd with resistance stove gate, finally right again
Tank body 1 carries out vacuumize process and it is heated, and tank body 1 just enters working condition.
The mode of being tightly connected between vacuum elements 2 and tank body 1 has many kinds, in order to cost-effective, simplifies structure, this hair
It is bright to use the connected mode that sealing flange 22 is set in the vacuum elements 2, the one of flange plate of sealing flange 22
At the opening at the top of tank body 1, another flange plate is connected with exhaust tube 21, and the face that two flange plates fit is provided with sealing
Circle 23.Flange plate its middle through-hole being connected with tank body 1 should be consistent with the internal diameter of tank body 1, is easy to be put into large-sized part, with
Connected flange plate its middle through-hole of exhaust tube 21 should be consistent with the internal diameter of exhaust tube 21, it is ensured that good sealing property.
Exhaust tube 21 is connected with outside oil-sealed rotary pump for convenience, in the exhaust tube 21 away from sealing flange 22
One end is provided with suction interface 4, and suction interface 4 is connected by sealing flange 4 with exhaust tube 21, can facilitated when suction interface is damaged
Change.
The resistance to thermal chuck 3 includes card case 31 and refractory brick 32, and the card case 31 is fixed on the periphery of tank body 1, refractory brick 32
On the outer wall for abutting in tank body 1, and upper end is located in card case 31, and lower end is exposed and with pyramidal structure.Due to refractory brick 32
Be inconvenient to be affixed directly on tank body 1, so there is provided card case 31, card case 31 can be welded direct on tank body 1, by refractory brick
In 32 upper ends are wrapped in, the lower end of refractory brick 32 is exposed and with pyramidal structure, is easy to be placed on resistance stove gate, and can be with
Stove gate be fitted close, reach heat-insulation and heat-preservation, avoid in-furnace temperature scatter and disappear etc. purpose.
In the heat treatment processes such as normalizing, annealing, after heat parts to certain temperature, to prevent heat from passing through heat transfer
Mode is delivered at the top of tank body, is caused tank body head temperature too high and is influenceed the effect of heat insulation of ring flange, while can be according to need
Cooling treatment is carried out, to obtain required metallographic structure, water cooling box 5, the water cooling box 5 are also provided with the tank body 1
Positioned at the top of tank body 1 and the outer wall of tank body 1 is abutted in, the lower end of water cooling box 5 is provided with water inlet 51, and upper end is provided with delivery port 52.
Water cooling box 5 is located at the top of resistance to thermal chuck 3, it is to avoid by the heat from resistance fire door, coolant entering from below during cooling
The mouth of a river 51 enters, and is flowed out after carrying out heat exchange with tank body 1 from the delivery port 52 of top, water inlet 51 is arranged below making cold
But liquid and the heat exchange of tank body 1 are more abundant, and cooling effect is more preferable.
In order to reduce heat of the tank body 1 for being located at the resistance to top of thermal chuck 3 to external radiation, and prevent heat from resistance to thermal chuck
3 pass to water cooling box 5, and thermal insulation layer 6 is provided between the water cooling box 5 and resistance to thermal chuck 3.On the one hand thermal insulation layer 6 can stop heat
The transmission of amount, plays a part of insulation, on the other hand water cooling box 5 can also be connected as a single entity with resistance to thermal chuck 3, make outside tank body 1
Annex it is more complete, stability is more preferable.
The concrete structure of thermal insulation layer 6 is that the thermal insulation layer 6 includes ceramic fiber blanket 61, graphite felt 62 and shell 63, ceramics
Fibrofelt 61 is abutted on the outer wall of tank body 1, and graphite felt 62 is wrapped in the periphery of ceramic fiber blanket 61, and shell 63, which will be located at outermost layer, to make pottery
Porcelain fibrofelt 61 and graphite felt 62 are enclosed in interior and are fixed on tank body 1.Shell 63 mainly plays fixation, ceramic fiber blanket 61
More preferably, so being arranged on nexine, the high insulating effect of graphite felt 62 can reduce the radiation of heat to heat-resisting effect.
Further, in order to improve the globality of the external accessory of tank body 1, make its structure more stable reliable, in the water cooling
The upper end of case 5 connects together water cooling box 5 with tank body 1 provided with bracket 7, between the lower end of water cooling box 5 and the shell 63 of thermal insulation layer 6
Connected together provided with flange 8 and by bolt, also be provided between the card case 31 of the resistance to thermal chuck 3 of the shell 63 of thermal insulation layer 6 and lower section
Flange 8 is simultaneously connected together by bolt.It can be fixedly connected when making using simply bracket 7 with tank body 1, remaining annex is all successively
By way of flange 8 and bolt are connected in the lower section of bracket 7, the attachment structure of each annex and tank body 1 can be so reduced, when some is attached
Part can also be changed at any time when damaging, and repair and maintenance cost is low.
Claims (6)
1. external-heat vacuum heat tank, including tank body (1), tank body (1) bottom seal, open top, it is characterized in that：Institute
State provided with the vacuum elements (2) being tightly connected with tank body (1) at the opening at the top of tank body (1), vacuum elements (2) have and tank body
(1) the internal exhaust tube (21) being connected, the periphery at the middle part of the tank body (1), which is provided with, to be used to be placed in the resistance to of resistance stove gate
Thermal chuck (3), the top of the resistance to thermal chuck (3) is provided with water cooling box (5), and the water cooling box (5) abuts in tank body (1) outer wall
On, the lower end of water cooling box (5) is provided with water inlet (51), and upper end is provided with delivery port (52), and the resistance to thermal chuck (3) includes card case
(31) and refractory brick (32), the card case (31) is fixed on tank body (1) periphery, and refractory brick (32) abuts in the outer wall of tank body (1)
On, and upper end is in card case (31), and lower end is exposed and with pyramidal structure.
2. external-heat vacuum heat tank as claimed in claim 1, it is characterized in that：The vacuum elements (2) also include sealing
Flange (22), sealing flange (22) one of flange plate is located at the opening at the top of tank body (1), another flange plate and pumping
Manage (21) to be connected, the face that two flange plates fit is provided with sealing ring (23).
3. external-heat vacuum heat tank as claimed in claim 2, it is characterized in that：The exhaust tube (21) is away from sealing flange
(22) one end is provided with suction interface (4), and suction interface (4) is connected with exhaust tube (21) by sealing flange (41).
4. external-heat vacuum heat tank as claimed in claim 1, it is characterized in that：The water cooling box (5) and resistance to thermal chuck (3)
Between be provided with thermal insulation layer (6).
5. external-heat vacuum heat tank as claimed in claim 4, it is characterized in that：The thermal insulation layer (6) includes ceramic fibre
Felt (61), graphite felt (62) and shell (63), ceramic fiber blanket (61) are abutted on tank body (1) outer wall, graphite felt (62) parcel
In ceramic fiber blanket (61) periphery, shell (63) be located at outermost layer by ceramic fiber blanket (61) and graphite felt (62) be enclosed in it is interior simultaneously
It is fixed on tank body (1).
6. external-heat vacuum heat tank as claimed in claim 5, it is characterized in that：The upper end of the water cooling box (5) is provided with support
Frame (7) connects together water cooling box (5) with tank body (1), is set between the lower end of water cooling box (5) and the shell (63) of thermal insulation layer (6)
Have flange (8) and connected together by bolt, the shell (63) of thermal insulation layer (6) and the card case (31) of the resistance to thermal chuck in lower section (3) it
Between also be provided with flange (8) and connected together by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508004.5A CN105004178B (en) | 2015-08-18 | 2015-08-18 | External-heat vacuum heat tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510508004.5A CN105004178B (en) | 2015-08-18 | 2015-08-18 | External-heat vacuum heat tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105004178A CN105004178A (en) | 2015-10-28 |
| CN105004178B true CN105004178B (en) | 2017-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510508004.5A Active CN105004178B (en) | 2015-08-18 | 2015-08-18 | External-heat vacuum heat tank |
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| CN (1) | CN105004178B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411083A (en) * | 2018-04-04 | 2018-08-17 | 芜湖德海机器人科技有限公司 | External-heat vacuum heat tank and heat treatment method |
| CN112029977A (en) * | 2020-10-16 | 2020-12-04 | 攀枝花学院 | Aging heat treatment vacuum tank |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200996U (en) * | 1987-01-26 | 1987-12-31 | 浙江省汽车运输公司金华汽车修理厂 | Vacuum heat treatment pot used in an electric resistance furnace |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293040Y (en) * | 1996-12-31 | 1998-09-30 | 中国科学院长春应用化学研究所 | Vacuum heat treatment device |
| CN2391155Y (en) * | 1999-09-30 | 2000-08-09 | 温州市工业科学研究所 | Titanium alloy vacuum heating furnace |
| JP2003294369A (en) * | 2002-03-29 | 2003-10-15 | Sakaguchi Dennetsu Kk | Heating furnace device |
| CN101187001A (en) * | 2007-11-29 | 2008-05-28 | 苏州市万泰真空炉研究所有限公司 | External heat tank type vacuum carburizing furnace |
-
2015
- 2015-08-18 CN CN201510508004.5A patent/CN105004178B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200996U (en) * | 1987-01-26 | 1987-12-31 | 浙江省汽车运输公司金华汽车修理厂 | Vacuum heat treatment pot used in an electric resistance furnace |
Non-Patent Citations (1)
| Title |
|---|
| 《双重抽气外热式真空电阻炉》;徐正弦;《电炉》;19890531;第19-21页 * |
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