CN100484341C - Current-collecting induction heater - Google Patents
Current-collecting induction heater Download PDFInfo
- Publication number
- CN100484341C CN100484341C CNB03134075XA CN03134075A CN100484341C CN 100484341 C CN100484341 C CN 100484341C CN B03134075X A CNB03134075X A CN B03134075XA CN 03134075 A CN03134075 A CN 03134075A CN 100484341 C CN100484341 C CN 100484341C
- Authority
- CN
- China
- Prior art keywords
- induction coil
- induction
- sample
- coil
- heater
- 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.)
- Expired - Fee Related
Links
Images
Abstract
Afflux induction heater in use for equipment of zone melting and directional solidification includes multi-loop primary induction coil, secondary induction coil, and magnetizer. The secondry induction coil is installed on inner side of primary induction coil. magnetizer is installed on outside secondry induction coil. the secondry induction coil is in cyathiform. There is hole on bottom of cup for installing sample and for sample to pass through. The disclosed heater is capable of raising local power density in heating surface of sample, and is suitable for heating small sample, keeping small molten zone. Features are: good matching with power source, high heating efficiency and capable of shielding parts around.
Description
Technical field
The present invention relates to zone-melting technique and directional solidification technique, specifically a kind of afflux induction heater that is used for the zone melting apparatus for directional solidification.
Background technology
In the zone melting apparatus for directional solidification, normally adopt induction heating technique to melt, this just needs a kind of suitable induction heater.At first, be as far as possible near the surface of heated sample, to improve the efficiency of heating surface, but common induction heater is multiturn or single-turn induction coil structure, wherein the general broad in multiturn induction coil structure melting zone heats the position and is difficult near sample surfaces, and is particularly especially true to small sample; Secondly, make the melting zone of zone melting narrow as far as possible,, can adopt single turn or 2 circle induction coil structures, but exist coil and power supply to be difficult to matching problem to improve the zone melting effect.
Summary of the invention
It is narrower and near sample surfaces, afflux induction heater that the efficiency of heating surface is high to the purpose of this invention is to provide a kind of melting zone that can make.
Technical scheme of the present invention is: comprise induction coil of multiturn, secondary induction coil, magnetic conductor, the secondary induction coil is installed in the induction coil inboard one time, and magnetic conductor is installed secondary induction coil outside;
The secondary induction coil is a cup-shaped, is provided with the hole that mobile example passes through at the bottom of cup; Described secondary induction coil is the cup-shaped single turn, the copper plate material; A described induction coil is more than 2 circles, the copper tube material; The number of turn 3～5 circles of a described induction coil are good.
The present invention has following advantage:
The melting zone narrow, with power supply coupling, heats is good.The present invention scientifically combines multiturn primary winding and secondary induction coil, concentrated the advantage of multiturn or single-turn induction coil structure, overcome exist in the prior art or the melting zone broad, or coil and the power supply deficiency that is difficult to mate, owing to adopt primary winding can make multiturn, better with the coupling of power supply, adopt secondary coil can improve the power density of a certain part of the sample area of heating surface, (it is higher that temperature gradient reaches to improve the heat efficiency, more than the 500K/cm), guarantee heats, and make melting zone narrower (melting zone can be too narrow to 1cm), and adopt the present invention's heating, the heating position is easy near sample surfaces, may diminish to 1mm with the gap of sample surfaces, be more suitable in the little sample of heating.
2. the present invention is equipped with magnetic conductor in the coil outside, overcome the induction of induction coil liquid towards metal cools medium and furnace wall in the prior art, can play shielding action to other parts on every side, make the efficiency of heating surface higher, be specially adapted to the zone melting apparatus for directional solidification.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with example in detail the present invention is described in detail.
As shown in Figure 1, comprise induction coil 1 of multiturn (common 3～5 circles) that copper tube is done, also comprise the cup-shaped single turn secondary induction coil 2 that copper plate is done, secondary induction coil 2 is installed in induction coil 1 inboard one time, and magnetic conductor 3 is installed secondary induction coil 2 outsides; Leave the hole that mobile example passes through at the bottom of 2 glasss of the secondary induction coils.
Operation principle of the present invention is:
Place, hole at the bottom of during enforcement sample being placed glass is provided with insulating varnish between induction coil 1 and the cup-shaped single turn secondary induction coil 2, at the outside installation of coil (can stick with glue) magnetic conductor 3.Its overall structure is that transformer working principle is combined with induction heating technique, when the primary winding 1 of inductor passes through alternating current, produces induced current on secondary coil 2, and secondary coil is responded to sample again.Promptly responded to the secondary coil of single turn by the primary winding of multiturn, the secondary coil of single turn comes the induction heating sample.Even the primary winding electric current is less, the electric current and the number of turn of secondary coil are inversely proportional to, and still can reach very high, and the induced current that produces in sample is very high, thereby the efficiency of heating surface is higher.Outstanding role of the present invention is exactly more can be near sample surfaces, and with the little 1mm that arrives in the gap of sample surfaces, heats is better, and the heat efficiency is higher.Owing to magnetic conductor 3 is installed in the coil outside, can overcome the induction of induction coil liquid towards metal cools medium and furnace wall, can improve the efficiency of heating surface 20～30%, and other parts are on every side played shielding action.
The present invention is tried out on zone melting liquid metal cooling directional solidification furnace, and the melting zone is too narrow to 1cm, and temperature gradient reaches more than the 500K/cm.
Claims (5)
1. afflux induction heater, comprise an induction coil (1), secondary induction coil (2) and magnetic conductor (3), wherein: secondary induction coil (2) is installed in an induction coil (1) inboard, be provided with insulating varnish between three induction coils (2) and the induction coil (1), magnetic conductor (3) is installed secondary induction coil (2) outside, and it is characterized in that: a described induction coil is a multiturn.
2. by the described afflux induction heater of claim 1, it is characterized in that: secondary induction coil (2) is a cup-shaped, is provided with the hole that mobile example passes through at the bottom of cup.
3. by claim 1 or 2 described afflux induction heaters, it is characterized in that: described secondary induction coil (2) is the cup-shaped single turn, the copper plate material.
4. by the described afflux induction heater of claim 1, it is characterized in that: a described induction coil (1) is the copper tube material.
5. by the described afflux induction heater of claim 1, it is characterized in that: the number of turn of a described induction coil (1) is 3～5 circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03134075XA CN100484341C (en) | 2003-09-26 | 2003-09-26 | Current-collecting induction heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03134075XA CN100484341C (en) | 2003-09-26 | 2003-09-26 | Current-collecting induction heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1602120A CN1602120A (en) | 2005-03-30 |
| CN100484341C true CN100484341C (en) | 2009-04-29 |
Family
ID=34658995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB03134075XA Expired - Fee Related CN100484341C (en) | 2003-09-26 | 2003-09-26 | Current-collecting induction heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100484341C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103366887B (en) * | 2013-05-28 | 2016-12-28 | 姜孟泽 | High frequency cable and high frequency magnetic field linearly penetrate pad processing unit (plant) and electric energy conveyer device |
| CN106448906B (en) * | 2016-12-06 | 2017-08-25 | 姜孟泽 | A kind of resonance cable, penetrate device for heat treating and electric energy transmission system |
| CN110996419B (en) * | 2019-12-11 | 2022-09-16 | 北京北方华创微电子装备有限公司 | Induction heating device and semiconductor processing equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB504880A (en) * | 1937-08-07 | 1939-05-02 | Joseph Ernst Senn | Induction heating apparatus |
| RU2002384C1 (en) * | 1991-12-09 | 1993-10-30 | Малое научно-производственное предпри тие "Нова электротермическа компани " | Induction liquid heater |
| CN2147706Y (en) * | 1992-12-30 | 1993-11-24 | 冶金工业部重庆钢铁设计研究院 | Steel track medium frequency induction heating device |
| CN1364394A (en) * | 1999-11-12 | 2002-08-14 | 应达公司 | High efficiency induction melting system |
| CN2532656Y (en) * | 2002-04-10 | 2003-01-22 | 中国科学院金属研究所 | Inductive heater |
-
2003
- 2003-09-26 CN CNB03134075XA patent/CN100484341C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB504880A (en) * | 1937-08-07 | 1939-05-02 | Joseph Ernst Senn | Induction heating apparatus |
| RU2002384C1 (en) * | 1991-12-09 | 1993-10-30 | Малое научно-производственное предпри тие "Нова электротермическа компани " | Induction liquid heater |
| CN2147706Y (en) * | 1992-12-30 | 1993-11-24 | 冶金工业部重庆钢铁设计研究院 | Steel track medium frequency induction heating device |
| CN1364394A (en) * | 1999-11-12 | 2002-08-14 | 应达公司 | High efficiency induction melting system |
| CN2532656Y (en) * | 2002-04-10 | 2003-01-22 | 中国科学院金属研究所 | Inductive heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1602120A (en) | 2005-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5101086A (en) | Electromagnetic inductor with ferrite core for heating electrically conducting material | |
| US9288847B2 (en) | Cold crucible induction melter integrating induction coil and melting furnace | |
| AU2002257311B2 (en) | Furnace with bottom induction coil | |
| US6162509A (en) | High frequency induction fusing | |
| CN100484341C (en) | Current-collecting induction heater | |
| MXPA05003231A (en) | Magnetic heating device. | |
| WO2014088423A1 (en) | Apparatus and method for induction heating of magnetic materials | |
| US20210276112A1 (en) | Soldering tool for inductive soldering | |
| EP0748577B1 (en) | Induction heating element | |
| CA2516737A1 (en) | Continuous extrusion apparatus | |
| KR20220052594A (en) | Double heating type heat-emitting apparatus for electronic cigarette, heat-emitting method and electronic cigarette | |
| US7449663B2 (en) | Inductive heating apparatus and method | |
| JP5126974B2 (en) | Induction heating melting furnace and induction heating method | |
| CA2096725C (en) | Dual surface heaters | |
| JPS56127139A (en) | Heater for fluid in pipe | |
| JP3689331B2 (en) | Heating method for cylindrical metal coil | |
| CN212102930U (en) | Induction heating device for annealing large-diameter stainless steel pipe | |
| CN215090643U (en) | HotPot heat-insulating pouring furnace | |
| JP7297239B2 (en) | heating device | |
| US20230380025A1 (en) | Compact and light electromagnetic shielding for a high-power inductor | |
| RU15828U1 (en) | INDUCTION HEATER FOR FLAT EXTENDED SURFACES | |
| PL137282B2 (en) | Induction heater | |
| EP1582627A1 (en) | Rail heating device | |
| RU2193293C2 (en) | Inductor heating flat surfaces | |
| SU1177004A1 (en) | Arrangement for moulding hollow parts with heating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20091026 |