CN208143509U - A kind of electrothermal closed-loop heating device - Google Patents
A kind of electrothermal closed-loop heating device Download PDFInfo
- Publication number
- CN208143509U CN208143509U CN201820552542.3U CN201820552542U CN208143509U CN 208143509 U CN208143509 U CN 208143509U CN 201820552542 U CN201820552542 U CN 201820552542U CN 208143509 U CN208143509 U CN 208143509U
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- China
- Prior art keywords
- calandria
- closed
- electrothermal
- heating device
- fixed substrate
- 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.)
- Withdrawn - After Issue
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 238000002844 melting Methods 0.000 abstract description 5
- 230000008018 melting Effects 0.000 abstract description 5
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses a kind of electrothermal closed-loop heating devices.The heating device uses electrothermal closed-loop heating technique, and calandria is wrapped in body surfaces along uniform plane based on stainless steel substrates, by planar resistor piece, generates heat after passing to electric current appropriate on demand, to realize radiant type heating to fixed substrate；Aiming at the problem that lathe may being made to charge after calandria failure, by the way of being mounted on calandria in pallet made of one ceramic beaverboard, other than open-top, each face is all closed the pallet, the heat overwhelming majority is transmitted upwards, to play insulation, heat-blocking action；The electrothermal closed-loop heating device of the utility model solves the online efficient Preheating during precinct laser melting increasing material manufacturing, it can not only be used to realize the preheating during increasing material manufacturing, the device and equipment that other need to preheat online can also be extended to.
Description
Technical field
The utility model belongs to technical field, and in particular to a kind of electrothermal closed-loop heating device.
Background technique
Precinct laser melting is a kind of advanced digitlization increasing material manufacturing technology, with the technological principle of its layer-by-layer superposition forming
Make it possible that subtracting material originally manufactures impossible processing problems.Production process is made with various pure metal or alloy powder material
To process raw material, using middle low power laser quickly and completely selective melting metal powder, fine and close metal zero is formed
Part.Because its be it is a kind of rapid cooling and solidification process, thus can obtain nonequilibrium state supersaturated solid solution and uniformly it is tiny
Metallographic structure, forming part consistency intimate 100%, mechanical performance is suitable with forging parts.SLM molded part applies model
It encloses extensively, such as：Micro element, mold, the biological of biological field of machinery field are implanted into part, the radiating element of electronic field, boat
Superlight part, the gradient function composite material parts in the big field of sky boat.As a kind of intermetallic composite coating rapid shaping technique, with biography
The cooked mode of system is completely different, and the machining locus for not needing complicated mechanical removal equipment and complexity can manufacture the pole of figure
For complicated workpiece.
However, in increasing material manufacturing process, since temperature gradient crosses phenomena such as conference generates warpage, nodularization, shadow
Ring the surface roughness and form accuracy of final products.
Current increasing material manufacturing does not use preheating device mostly, as disclosed in Chinese patent literature library《Different powder are compound
The precinct laser melting powder feeding and spreading device used》（Application number：2014105327927）, or the mode preheated only with open loop,
As disclosed in Chinese patent literature library《A kind of precinct laser melting deep hole supplement prosthetic device》（Application number：
201410083380X）Deng.But the generally existing heating efficiency of above-mentioned apparatus is low, poor insulativity, the shortcomings that there are security risks,
Currently need to develop a kind of electrothermal closed-loop heating device.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of electrothermal closed-loop heating devices.
The electrothermal closed-loop heating device of the utility model, its main feature is that：The heating device includes cylinder body, work
Dynamic substrate, fixed substrate, calandria, thermocouple, insulated heat pad, sealing element, piston body, ceramic fibre thermal insulation board；It is connected
Relationship is：The piston body is sealed in cylinder body and is slidably connected, and is fixed on piston body on the contact surface of piston body and cylinder body
Groove in sealing element；The shape of the ceramic fibre thermal insulation board is tray type, is placed on the upper surface of piston body, calandria
Be fixed on the bottom of ceramic fibre thermal insulation board, the top of calandria be sequentially overlapped from bottom to up insulated heat pad, fixed substrate and
Movable base plate；The temperature of thermocouple measurement calandria；The lower part of ceramic beaverboard is provided with power hole and cooling water hole, and cooling water is logical
Supercooling water hole flows into piston body, cooling piston body.
The distance between described fixed substrate and calandria are 2mm, i.e., pass through support between fixed substrate and calandria
Body keeps the spatial altitude of 2mm, and insulated heat pad is posted in fixed substrate side in spatial altitude.
The fixed substrate is fixedly connected with movable base plate by screw.
The calandria is based on stainless steel substrates, surface uniform winding planar resistor piece.
The material of the cylinder body, piston body is all made of hardened steel.
The material of the movable base plate, fixed substrate uses brass.
The material of the sealing element uses polytetrafluoroethylene (PTFE).
The material of the ceramic beaverboard, insulated heat pad uses ceramic fibre.
The calandria generates heat after passing to electric current appropriate on demand, to realize radiant type heating to fixed substrate.
So that lathe is charged and is introduced insecurity factor after calandria failure in order to prevent, calandria is mounted on by ceramic fibre thermal insulation board
In manufactured pallet, the heat overwhelming majority is transmitted upwards, to play insulation, heat-insulated effect.
The fixed substrate is installed by insulated heat pad to having above the heat-insulated sheet tray of ceramic fibre, with calandria
Between keep 2mm safe distance, while design have grounding point ensure leak electricity after electrical security.
When due to metal powder rapid shaping, metal substrate is needed to be replaced frequently, therefore, by substrate design at two
Point, a part is fixed substrate, and another part is movable base plate.Fixed substrate is no longer dismantled after adjustment.By movable base
Plate is connect by screw with fixed substrate, when needing replacing metal substrate, only needs to change movable base plate, so both can be with
Guarantee safety when replacement, and the adjustment workload after replacement can be reduced.
The closed loop heater control that the electrothermal closed-loop heating device of the utility model is made up of calandria and thermocouple
Circuit has the advantages that online efficiently quickly accurate preheating, is able to solve in process due to the excessive generation of temperature gradient
The problems such as warpage, nodularization, additionally it is possible to improve heating efficiency, improve insulation performance, prevent security risk, improve increasing material manufacturing matter
Amount.The electrothermal closed-loop heating device of the utility model can also be extended to device and equipment that other need to preheat online.
Detailed description of the invention
Fig. 1 is the electrothermal closed-loop schematic diagram of heating device of the utility model；
In figure, 1. cylinder body, 2. movable base plate, 3. fixed substrate, 4. calandria, 5. thermocouple, 6. insulated heat pad
7. 8. piston body of sealing element, 9. ceramic fibre thermal insulation board.
Specific embodiment
According to the present invention will be described in detail below with reference to the accompanying drawings.
The electrothermal closed-loop heating device of the utility model includes cylinder body 1, movable base plate 2, fixed substrate 3, calandria
4, thermocouple 5, insulated heat pad 6, sealing element 7, piston body 8, ceramic fibre thermal insulation board 9；Its connection relationship is：The piston
Body 8 is sealed in cylinder body 1 and is slidably connected, and is had on piston body 8 and the contact surface of cylinder body 1 close in the groove for being fixed on piston body 8
Sealing 7；The shape of the ceramic fibre thermal insulation board 9 is tray type, is placed on the upper surface of piston body 8, calandria 4 is fixed on pottery
The bottom of porcelain fibrous thermal plate 9, the top of calandria 4 are sequentially overlapped insulated heat pad 6, fixed substrate 3 and activity from bottom to up
Substrate 2；The temperature of the measurement calandria 4 of thermocouple 5；The lower part of ceramic beaverboard 9 is provided with power hole and cooling water hole, and cooling water is logical
Supercooling water hole flows into piston body 8, cooling piston body 8.
The distance between described fixed substrate 3 and calandria 4 are 2mm, i.e., pass through between fixed substrate 3 and calandria 4
Supporter keeps the spatial altitude of 2mm, and insulated heat pad 6 is posted in 3 side of fixed substrate in spatial altitude.
The fixed substrate 3 is fixedly connected with movable base plate 2 by screw.
The calandria 4 is based on stainless steel substrates, surface uniform winding planar resistor piece.
The material of the cylinder body 1, piston body 8 is all made of hardened steel.
The material of the movable base plate 2, fixed substrate 3 uses brass.
The material of the sealing element 7 uses polytetrafluoroethylene (PTFE).
The material of the ceramic beaverboard 9, insulated heat pad 6 uses ceramic fibre.
The utility model is not limited to above-mentioned specific embodiment, and person of ordinary skill in the field visualizes from above-mentioned
Hair, without creative labor, made various transformation are all fallen within the protection scope of the utility model.
Claims (4)
1. a kind of electrothermal closed-loop heating device, it is characterised in that：The heating device includes cylinder body（1）, movable base plate
（2）, fixed substrate（3）, calandria（4）, thermocouple（5）, insulated heat pad（6）, sealing element（7）, piston body（8）, ceramics it is fine
Tie up thermal insulation board（9）；Its connection relationship is：The piston body（8）In cylinder body（1）Interior sealing is slidably connected, piston body（8）With cylinder
Body（1）Contact surface on be fixed on piston body（8）Groove in sealing element（7）；The ceramic fibre thermal insulation board（9）'s
Shape is tray type, is placed on piston body（8）The upper surface of, calandria（4）It is fixed on ceramic fibre thermal insulation board（9）Bottom, add
Hot body（4）Top be sequentially overlapped insulated heat pad from bottom to up（6）, fixed substrate（3）And movable base plate（2）；Thermocouple（5）
Measure calandria（4）Temperature；Ceramic fibre thermal insulation board（9）Lower part be provided with power hole and cooling water hole, cooling water passes through cold
But water hole flows into piston body（8）, to make piston body（8）It is cooling.
2. electrothermal closed-loop heating device according to claim 1, it is characterised in that：The fixed substrate（3）With
Calandria（4）The distance between be 2mm, i.e. fixed substrate（3）With calandria（4）Between by supporter keep 2mm space
Highly, the fixed substrate in spatial altitude（3）Post insulated heat pad in side（6）.
3. electrothermal closed-loop heating device according to claim 1, it is characterised in that：The fixed substrate（3）With
Movable base plate（2）It is fixedly connected by screw.
4. electrothermal closed-loop heating device according to claim 1, it is characterised in that：The calandria（4）Surface
Uniform winding planar resistor piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820552542.3U CN208143509U (en) | 2018-04-18 | 2018-04-18 | A kind of electrothermal closed-loop heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820552542.3U CN208143509U (en) | 2018-04-18 | 2018-04-18 | A kind of electrothermal closed-loop heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208143509U true CN208143509U (en) | 2018-11-23 |
Family
ID=64293804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820552542.3U Withdrawn - After Issue CN208143509U (en) | 2018-04-18 | 2018-04-18 | A kind of electrothermal closed-loop heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208143509U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322946A (en) * | 2018-04-18 | 2018-07-24 | 中国工程物理研究院机械制造工艺研究所 | A kind of electrothermal closed-loop heating device |
| CN110405208A (en) * | 2019-08-20 | 2019-11-05 | 武汉华科三维科技有限公司 | A kind of primary-secondary type substrate suitable for selective laser fusing |
| CN112475324A (en) * | 2020-10-28 | 2021-03-12 | 浙江万丰科技开发股份有限公司 | Modular heater for 3D printer |
-
2018
- 2018-04-18 CN CN201820552542.3U patent/CN208143509U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322946A (en) * | 2018-04-18 | 2018-07-24 | 中国工程物理研究院机械制造工艺研究所 | A kind of electrothermal closed-loop heating device |
| CN108322946B (en) * | 2018-04-18 | 2024-02-13 | 中国工程物理研究院机械制造工艺研究所 | Electric heating type full-closed loop heating device |
| CN110405208A (en) * | 2019-08-20 | 2019-11-05 | 武汉华科三维科技有限公司 | A kind of primary-secondary type substrate suitable for selective laser fusing |
| CN112475324A (en) * | 2020-10-28 | 2021-03-12 | 浙江万丰科技开发股份有限公司 | Modular heater for 3D printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181123 Effective date of abandoning: 20240213 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181123 Effective date of abandoning: 20240213 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |