JP2006038436A5 - - Google Patents
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- JP2006038436A5 JP2006038436A5 JP2004238947A JP2004238947A JP2006038436A5 JP 2006038436 A5 JP2006038436 A5 JP 2006038436A5 JP 2004238947 A JP2004238947 A JP 2004238947A JP 2004238947 A JP2004238947 A JP 2004238947A JP 2006038436 A5 JP2006038436 A5 JP 2006038436A5
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- JP
- Japan
- Prior art keywords
- crucible
- frequency
- heating element
- inverter
- phase
- Prior art date
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- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910004682 ON-OFF Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Description
本発明は、電力を使用した、金属溶解ルツボに関する。 The present invention relates to a metal melting crucible using electric power.
電力を使用した従来の加熱方法は、抵抗線に電流を流し加熱し、それを耐熱絶縁体で被い、空気層で絶縁して、黒鉛等セラミックルツボを加熱していた（例えば、特許文献１参照）。また別の方法として黒鉛ルツボや被加熱物に、電磁誘導を行い、その誘導電流で加熱していた（例えば、特許文献２参照）。 In the conventional heating method using electric power, an electric current is passed through a resistance wire to heat it, covered with a heat-resistant insulator, insulated with an air layer, and heated a ceramic crucible such as graphite (for example, Patent Document 1). See) . As another method, a graphite crucible or an object to be heated was subjected to electromagnetic induction and heated by the induced current ( for example, see Patent Document 2) .
以上述べた、従来の方法は、抵抗線の発熱が間接的にルツボに伝わるため、金属を積極的に溶解するには、かなりの時間を要した。又電磁誘導による加熱方式は、鉄には有効であるが、非鉄金属には効率の良いものではなかった。 In the conventional method described above, since heat generated by the resistance wire is indirectly transmitted to the crucible, it takes a considerable time to actively dissolve the metal. The heating method using electromagnetic induction is effective for iron, but not efficient for non-ferrous metals.
本発明は、このような従来の加熱方法の問題を解決しようとするものであり、小型で効率の良い金属溶解ルツボの実現を、目的とする物である。 The present invention is intended to solve such problems of the conventional heating method, and aims to realize a small and efficient metal melting crucible .
本発明は上記目的を達成するために、第１の課題解決手段は、ルツボ１に直接発熱体３を加工し、発熱体から直接ルツボを加熱し効率を良くする。 In order to achieve the above object, the first problem solving means processes the heating element 3 directly on the crucible 1 and heats the crucible directly from the heating element to improve the efficiency.
第２の課題解決手段は、高周波インバータと高周波絶縁トランス、そしてこのインバータを使用した温度制御を小さなシステムで行う事である。高周波インバータ６により、高周波絶縁トランス７が極端に小型化でき、コスト、スペース両面で十分な実用価値が得られる様になる。もう一つの特長は相数の変換と、出力電圧の変換である。このことは、３相から単相に変換して発熱体を１本で加熱できる事や、商用３相電力２００Ｖ４で入力した場合、インバータからの出力（トランスの一次電圧）を１００Ｖで使用する事もできる。 The second problem solving means is to perform a high-frequency inverter, a high-frequency insulating transformer, and temperature control using this inverter with a small system. The high-frequency inverter 6 can extremely reduce the size of the high-frequency insulation transformer 7, and a sufficient practical value can be obtained in both cost and space. Another feature is phase number conversion and output voltage conversion. This means that a single heating element can be heated by converting from three phases to a single phase, and when the commercial three-phase power is 200V4, the output from the inverter (primary voltage of the transformer) is used at 100V. You can also.
上述したように、本発明の金属溶解ルツボは、小型、高効率で温度調節も、優れた方法で解決する事ができる。 As described above, the metal melting crucible of the present invention is small, highly efficient, and temperature control can be solved by an excellent method.
以下、本発明の実施の形態を図１，図２に基づいて説明する。
図１において１はルツボであり、断熱材２によって支えられると共に発熱体３の熱を外部に逃がさない様にルツボの外側を全面被っている。
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
In FIG. 1, reference numeral 1 denotes a crucible which is supported by a heat insulating material 2 and covers the entire outside of the crucible so as not to let the heat of the heating element 3 escape to the outside.
図２は、本発明の最も特長とするところで、商用３相電源４から高周波インバータ６で高周波電流に変換された電力は、高周波絶縁トランスにより、絶縁された高周波電流５となりルツボの発熱体を加熱する。これによりルツボは発熱体の熱を直接受ける事になる、高周波トランスで絶縁されているため、ルツボを接地しても漏電の心配が無く、感電事故も防止できる。 FIG. 2 shows the most characteristic feature of the present invention. The electric power converted from the commercial three-phase power source 4 into the high-frequency current by the high-frequency inverter 6 becomes the insulated high-frequency current 5 by the high-frequency insulation transformer to heat the crucible heating element. To do. As a result, the crucible receives heat directly from the heating element, and is insulated by a high frequency transformer. Therefore, even if the crucible is grounded, there is no fear of leakage, and an electric shock accident can be prevented.
温度センサー９から得られた温度情報は、温度調節器８に入り、高周波インバータの出力を、ＰＷＭ（パルス巾制御）によりリニアに電力制御する事ができる。むろんＯＮ−ＯＦＦ制御もできる。 The temperature information obtained from the temperature sensor 9 enters the temperature controller 8, and the output of the high frequency inverter can be linearly controlled by PWM (pulse width control). Of course, ON-OFF control is also possible.
１ ルツボ
２ 断熱材
３ 発熱体
４ 商用３相電力
５ 高周波加熱電力（単相）
６ インバータ（出力制御付き周波数変換器）
７ 高周波絶縁トランス
８ 温度調節器
９ 温度センサー
1 crucible 2 heat insulating material 3 heating element 4 commercial 3 phase power 5 high frequency heating power (single phase)
6 Inverter (frequency converter with output control)
7 High frequency isolation transformer 8 Temperature controller 9 Temperature sensor
Claims (2)
ルツボの外壁に直接加工された発熱体と、A heating element processed directly on the outer wall of the crucible;
発熱体の外側を覆う断熱材とを具備することを特徴とする金属溶解ルツボ。A metal melting crucible comprising a heat insulating material covering the outside of the heating element.
高周波インバータから単相の高周波電力が入力され、商用電源とは絶縁された単相の高周波電力を前記発熱体に出力する高周波絶縁トランスとを具備することを特徴とする請求項１記載の金属溶解ルツボ。2. The metal melting according to claim 1, further comprising: a high-frequency insulating transformer that receives a single-phase high-frequency power from a high-frequency inverter and outputs a single-phase high-frequency power insulated from a commercial power source to the heating element. Crucible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004238947A JP4511283B2 (en) | 2004-07-22 | 2004-07-22 | Metal melting crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004238947A JP4511283B2 (en) | 2004-07-22 | 2004-07-22 | Metal melting crucible |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006038436A JP2006038436A (en) | 2006-02-09 |
| JP2006038436A5 true JP2006038436A5 (en) | 2007-08-30 |
| JP4511283B2 JP4511283B2 (en) | 2010-07-28 |
Family
ID=35903605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004238947A Expired - Fee Related JP4511283B2 (en) | 2004-07-22 | 2004-07-22 | Metal melting crucible |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4511283B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5360958B2 (en) * | 2008-10-23 | 2013-12-04 | ナビオ株式会社 | Melting crucible |
| CN102538458B (en) * | 2012-03-19 | 2014-12-03 | 天津市滨海电器有限公司 | Tin melting furnace |
| DE102013216021A1 (en) * | 2013-08-13 | 2015-02-19 | Branson Ultraschall Niederlassung Der Emerson Technologies Gmbh & Co. Ohg | Radiant heater, infrared welding apparatus and method for heating plastic components |
| CN106334241A (en) * | 2016-11-02 | 2017-01-18 | 上海芈歌智能科技有限公司 | Quick blood transfusion device based on electromagnetic heating |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5653270Y2 (en) * | 1978-05-23 | 1981-12-11 | ||
| JPS6171585A (en) * | 1984-09-13 | 1986-04-12 | 松下電器産業株式会社 | High frequency heater |
| JPS62275405A (en) * | 1986-05-22 | 1987-11-30 | 松下電工株式会社 | Apparatus for preventing electric shock of electric machinery |
| JPH01313877A (en) * | 1988-06-14 | 1989-12-19 | Mitsubishi Electric Corp | Induction heating device |
| JP2860994B2 (en) * | 1988-08-12 | 1999-02-24 | 栗田工業株式会社 | Power line selection device for signal transmission |
| JP2851304B2 (en) * | 1989-05-29 | 1999-01-27 | 三菱重工業株式会社 | Inverter type heating power supply |
| JPH03116595U (en) * | 1990-03-07 | 1991-12-03 | ||
| JPH04230985A (en) * | 1991-06-06 | 1992-08-19 | Tokai Konetsu Kogyo Co Ltd | Manufacture of silicon carbide heating element |
| JP3390562B2 (en) * | 1994-06-28 | 2003-03-24 | シャープ株式会社 | Magnetron and microwave oven |
| JPH11108560A (en) * | 1997-08-04 | 1999-04-23 | Ariake Serako Kk | Heat insulation furnace and gutter for molten metal |
| JP2001052850A (en) * | 1999-08-12 | 2001-02-23 | Tokuden Co Ltd | Induction-heating roller device |
| JP3922616B2 (en) * | 1999-12-20 | 2007-05-30 | 富士電機ホールディングス株式会社 | Induction heating device |
-
2004
- 2004-07-22 JP JP2004238947A patent/JP4511283B2/en not_active Expired - Fee Related
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