CN105004178A - Externally heating type vacuum heat treatment tank - Google Patents
Externally heating type vacuum heat treatment tank Download PDFInfo
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- CN105004178A CN105004178A CN201510508004.5A CN201510508004A CN105004178A CN 105004178 A CN105004178 A CN 105004178A CN 201510508004 A CN201510508004 A CN 201510508004A CN 105004178 A CN105004178 A CN 105004178A
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- tank body
- tank
- heat
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- water cooling
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Abstract
The invention discloses an externally heating type vacuum heat treatment tank in the field of heat treatment equipment. The tank comprises a tank body, wherein the tank body has a closed bottom and an open top, an exhaust assembly connected with the tank body in a sealed manner is arranged at an opening in the top of the tank body, the exhaust assembly is provided with an exhaust tube communicated with the inside of the tank body, and a heat-resistant chuck arranged at a resistance furnace door opening is arranged on the periphery of the middle of the tank body. The tank has the benefits as follows: the tank is simple in structure, easy to manufacture and convenient to operate and maintain, an electrical heating element performs heating outside the vacuum tank, the vacuum discharge phenomenon cannot occur, other electrical problems such as short circuits, carbon deposition and the like are solved, besides, workpieces are sealed in the tank and cannot have chemical reactions with the electrical heating element, a furnace lining and the like, the production is safe and reliable, the vacuum tank is small in volume, few accessories are arranged in the tank, vacuum sealing is easy, the sucking quantity is small, and the required vacuum degree is reached easily.
Description
Technical field
The present invention relates to Equipment for Heating Processing field, particularly relate to a kind of vacuum heat tank of external-heat.
Background technology
Modern vacuum heat treatment technics is the advanced technology of material modification, namely the heat treatments such as normalizing, annealing, quenching, tempering are carried out to machined part under vacuum conditions, vacuum heat treatment technology there is non-oxidation, without decarburization, have degreasing, degasification, energy-saving clean is pollution-free, nuisanceless, automaticity advantages of higher, material surface quality after vacuum heat is good, be out of shape small, excellent combination property, long service life, precision is high, therefore makes vacuum heat treatment technology become the focus of Overseas Development.But traditional internal heat type vacuum heat device structure is comparatively complicated, in tank, annex is too many, easily cause vacuum discharge phenomenon, inner electric appliance circuits is more simultaneously, certain potential safety hazard is there is in use procedure, and higher to small parts vacuum heat cost, be unfavorable for the popularization and application of vacuum heat treatment technology.
Summary of the invention
For overcoming existing internal heat type vacuum heat device complex structure, the high deficiency of use cost, technical problem to be solved by this invention is: the external-heat vacuum heat tank providing a kind of structure simple, easy to use.
The technical solution adopted for the present invention to solve the technical problems is: external-heat vacuum heat tank, comprise tank body, described tank base sealing, open top, the opening part at described tank body top is provided with the vacuum elements be tightly connected with tank body, vacuum elements has the exhaust tube be connected with tank interior, the outer resistance to thermal chuck be arranged with for being placed in resistance furnace doorway at the middle part of described tank body.
Further, described vacuum elements also comprises sealing flange, and one of them flange plate of sealing flange is positioned at the opening part at tank body top, and another flange plate is connected with exhaust tube, and the face that two flange plates fit is provided with sealing ring.
Further, described exhaust tube is provided with suction interface away from one end of sealing flange, and suction interface is connected by sealing flange with exhaust tube.
Further, described resistance to thermal chuck comprises card case and refractory brick, and described card case is fixed on tank body periphery, and refractory brick abuts on the outer wall of tank body, and upper end is positioned at card case, and lower end is exposed and have pyramidal structure.
Further, described tank body is also provided with water cooling box, described water cooling box is positioned at the top of tank body and abuts in tank wall, and the lower end of water cooling box is provided with water inlet, and upper end is provided with delivery port.
Further, thermal insulation layer is provided with between described water cooling box and resistance to thermal chuck.
Be further, described thermal insulation layer comprises ceramic fiber blanket, graphite felt and shell, ceramic fiber blanket abuts on tank wall, and graphite felt is wrapped in ceramic fiber blanket periphery, and shell is positioned at outermost layer and ceramic fiber blanket and graphite felt is enclosed in and is fixed on tank body.
Be further, the upper end of described water cooling box is provided with bracket and water cooling box and tank body is connected together, be provided with flange between the lower end of water cooling box and the shell of thermal insulation layer and connected together by bolt, be also provided with flange between the card case of the resistance to thermal chuck of the shell of thermal insulation layer and below and connected together by bolt.
The invention has the beneficial effects as follows: structure is simple, be easy to manufacture, simple and convenient operation and maintenance, at vacuum tank external heat, can not there is vacuum discharge phenomenon in heating, also without other electrical problems such as short circuit, carbon distribution, and workpiece is sealed in retort, with heating, furnace lining etc., chemical reaction can not occur, production safety is reliable, and vacuum tank volume is little, in tank, annex is few, vacuum seal is easy, and rate of air sucked in required is few, easily reaches required vacuum.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Be labeled as in figure, 1-tank body, 2-vacuum elements, the resistance to thermal chuck of 3-, 4-air extraction connector, 5-water cooling box, 6-thermal insulation layer, 7-bracket, 8-flange, 21-exhaust tube, 22-sealing flange, 23-sealing ring, 31-card case, 32-refractory brick, 41-sealing flange, 51-water inlet, 52-delivery port, 61-ceramic fiber blanket, 62-graphite felt, 63-shell.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, the present invention includes tank body 1, described tank body 1 bottom seal, open top, the opening part at described tank body 1 top is provided with the vacuum elements 2 be tightly connected with tank body 1, vacuum elements 2 has the exhaust tube 21 be connected with tank body 1 inside, the outer resistance to thermal chuck 3 be arranged with for being placed in resistance furnace doorway at the middle part of described tank body 1.Tank body 1 can adopt austenite steel plate argon arc welding to form, and compares with once-forming cylinder can body cost lower.For being flexibly connected between vacuum elements 2 with tank body 1, during use, desirable lower pumping assembly 2, puts into pending part.Resistance to thermal chuck 3 is mainly used in whole tank body 1 being placed into resistance furnace doorway place, to heat tank body 1.Use procedure of the present invention is, first take off vacuum elements 2, pending part is put into from the opening part of tank body 1, then close vacuum elements 2, exhaust tube 21 on vacuum elements 2 is connected to oil-sealed rotary pump, and then whole tank body 1 is placed on resistance fire door, resistance to thermal chuck 3 is alignd with resistance furnace doorway, last vacuumizing tank body 1 again processes and heats it, and tank body 1 just enters duty.
The mode of being tightly connected between vacuum elements 2 and tank body 1 has a variety of, in order to cost-saving, simplify structure, what the present invention adopted is the connected mode arranging sealing flange 22 in described vacuum elements 2, one of them flange plate of sealing flange 22 is positioned at the opening part at tank body 1 top, another flange plate is connected with exhaust tube 21, and the face that two flange plates fit is provided with sealing ring 23.Its middle through-hole of flange plate be connected with tank body 1 should be consistent with tank body 1 internal diameter, is convenient to put into large-sized part, and its middle through-hole of flange plate be connected with exhaust tube 21 should be consistent with exhaust tube 21 internal diameter, ensures good sealing property.
Conveniently exhaust tube 21 is connected with the oil-sealed rotary pump of outside, and be provided with suction interface 4 at described exhaust tube 21 away from one end of sealing flange 22, suction interface 4 is connected by sealing flange 4 with exhaust tube 21, conveniently replaced when suction interface damages.
Described resistance to thermal chuck 3 comprises card case 31 and refractory brick 32, and described card case 31 is fixed on that tank body 1 is peripheral, and refractory brick 32 abuts on the outer wall of tank body 1, and upper end is positioned at card case 31, and lower end is exposed and have pyramidal structure.Because refractory brick 32 inconvenience is directly fixed on tank body 1, so be provided with card case 31, card case 31 can be welded direct on tank body 1, in refractory brick 32 upper end is wrapped in, refractory brick 32 lower end is exposed and have pyramidal structure, be convenient to be placed on resistance furnace doorway, and can closely cooperate with stove gate, reach heat-insulation and heat-preservation, avoid the objects such as in-furnace temperature scatters and disappears.
In the heat treatment process such as normalizing, annealing, after heat parts to uniform temperature, tank body top is delivered to by heat exchange pattern for preventing heat, cause tank body head temperature too high and affect the effect of heat insulation of ring flange, cooling processing can be carried out as required, to obtain required metallographic structure simultaneously, described tank body 1 is also provided with water cooling box 5, described water cooling box 5 is positioned at the top of tank body 1 and abuts in tank body 1 outer wall, and 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 positioned at the top of resistance to thermal chuck 3, avoid being subject to the heat from resistance fire door, during cooling, cooling fluid water inlet 51 from below enters, flow out from the delivery port 52 of top after carrying out heat exchange with tank body 1, be arranged on down by water inlet 51 and cooling fluid and tank body 1 heat exchange can be made more abundant, cooling effect is better.
In order to reduce be positioned at resistance to thermal chuck 3 top tank body 1 to extraradial heat, and prevent heat from passing to water cooling box 5 from resistance to thermal chuck 3, between described water cooling box 5 and resistance to thermal chuck 3, be provided with thermal insulation layer 6.The transmission of thermal insulation layer 6 one aspect energy block heat, plays the effect of insulation, and also water cooling box 5 and resistance to thermal chuck 3 can be connected as a single entity on the other hand, make the annex of tank body 1 outside more complete, stability is better.
The concrete structure of thermal insulation layer 6 is, described thermal insulation layer 6 comprises ceramic fiber blanket 61, graphite felt 62 and shell 63, ceramic fiber blanket 61 abuts on tank body 1 outer wall, it is peripheral that graphite felt 62 is wrapped in ceramic fiber blanket 61, and shell 63 is positioned at outermost layer and ceramic fiber blanket 61 and graphite felt 62 is enclosed in and is fixed on tank body 1.Shell 63 mainly plays fixation, and ceramic fiber blanket 61 heat-resisting effect is better, so be arranged on nexine, graphite felt 62 high insulating effect, can reduce the radiation of heat.
Further, in order to improve the globality of tank body 1 external accessory, make its structure more reliable and more stable, be provided with bracket 7 in the upper end of described water cooling box 5 water cooling box 5 and tank body 1 are connected together, be provided with flange 8 between the lower end of water cooling box 5 and the shell 63 of thermal insulation layer 6 and connected together by bolt, be also provided with flange 8 between the card case 31 of the resistance to thermal chuck 3 of the shell 63 of thermal insulation layer 6 and below and connected together by bolt.Just bracket 7 can be adopted to be fixedly connected with tank body 1 when making, all the other annexes are connected in the mode below bracket 7 by flange 8 and bolt all successively, can reduce the syndeton of each annex and tank body 1 like this, when also can change at any time when damaging appears in certain annex, repair and maintenance cost is low.
Claims (8)
1. external-heat vacuum heat tank, comprise tank body (1), described tank body (1) bottom seal, open top, it is characterized in that: the opening part at described tank body (1) top is provided with the vacuum elements (2) be tightly connected with tank body (1), vacuum elements (2) has the exhaust tube (21) be connected with tank body (1) inside, the outer resistance to thermal chuck (3) be arranged with for being placed in resistance furnace doorway at the middle part of described tank body (1).
2. external-heat vacuum heat tank as claimed in claim 1, it is characterized in that: described vacuum elements (2) also comprises sealing flange (22), sealing flange (22) one of them flange plate is positioned at the opening part at tank body (1) top, another flange plate is connected with exhaust tube (21), and 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: described exhaust tube (21) is provided with suction interface (4) away from one end of sealing flange (22), and suction interface (4) is connected by sealing flange (41) with exhaust tube (21).
4. external-heat vacuum heat tank as claimed in claim 1, it is characterized in that: described resistance to thermal chuck (3) comprises card case (31) and refractory brick (32), it is peripheral that described card case (31) is fixed on tank body (1), refractory brick (32) abuts on the outer wall of tank body (1), and upper end is positioned at card case (31), lower end is exposed and have pyramidal structure.
5. the external-heat vacuum heat tank as described in claim 1,2,3 or 4, it is characterized in that: described tank body (1) is also provided with water cooling box (5), described water cooling box (5) is positioned at the top of tank body (1) and abuts in tank body (1) outer wall, the lower end of water cooling box (5) is provided with water inlet (51), and upper end is provided with delivery port (52).
6. external-heat vacuum heat tank as claimed in claim 5, is characterized in that: be provided with thermal insulation layer (6) between described water cooling box (5) and resistance to thermal chuck (3).
7. external-heat vacuum heat tank as claimed in claim 6, it is characterized in that: described thermal insulation layer (6) comprises ceramic fiber blanket (61), graphite felt (62) and shell (63), ceramic fiber blanket (61) abuts on tank body (1) outer wall, it is peripheral that graphite felt (62) is wrapped in ceramic fiber blanket (61), and shell (63) is positioned at outermost layer and ceramic fiber blanket (61) and graphite felt (62) is enclosed in and is fixed on tank body (1).
8. external-heat vacuum heat tank as claimed in claim 7, it is characterized in that: the upper end of described water cooling box (5) is provided with bracket (7) and water cooling box (5) and tank body (1) is connected together, be provided with flange (8) between the lower end of water cooling box (5) and the shell (63) of thermal insulation layer (6) and connected together by bolt, be also provided with flange (8) between the card case (31) of the shell (63) and below resistance to thermal chuck (3) of thermal insulation layer (6) 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 true CN105004178A (en) | 2015-10-28 |
| CN105004178B CN105004178B (en) | 2017-10-27 |
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| 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) |
Cited By (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 (5)
| 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 |
| 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 (5)
| 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 |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 徐正弦: "《双重抽气外热式真空电阻炉》", 《电炉》 * |
| 王忠山，江浩: "《管材真空退火炉》", 《稀有金属材料与工程》 * |
Cited By (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 |
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| Publication number | Publication date |
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| CN105004178B (en) | 2017-10-27 |
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