KR20000073086A - The device nozzle of diecasting pressure out making - Google Patents

The device nozzle of diecasting pressure out making Download PDF

Info

Publication number
KR20000073086A
KR20000073086A KR1019990016144A KR19990016144A KR20000073086A KR 20000073086 A KR20000073086 A KR 20000073086A KR 1019990016144 A KR1019990016144 A KR 1019990016144A KR 19990016144 A KR19990016144 A KR 19990016144A KR 20000073086 A KR20000073086 A KR 20000073086A
Authority
KR
South Korea
Prior art keywords
nozzle
high frequency
nozzle unit
temperature
die casting
Prior art date
Application number
KR1019990016144A
Other languages
Korean (ko)
Other versions
KR100319698B1 (en
Inventor
이창우
Original Assignee
이창우
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 이창우 filed Critical 이창우
Priority to KR1019990016144A priority Critical patent/KR100319698B1/en
Publication of KR20000073086A publication Critical patent/KR20000073086A/en
Application granted granted Critical
Publication of KR100319698B1 publication Critical patent/KR100319698B1/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00Tents or canopies, in general
    • E04H15/20Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B7/00Collapsible, foldable, inflatable or like vessels
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00Tents or canopies, in general
    • E04H15/30Tents or canopies, in general convertible, e.g. from one type tent to another type tent, from tent to canopy or from tent cover into diverse articles
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00Tents or canopies, in general
    • E04H15/32Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • E04H15/56Floors
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00Tents or canopies, in general
    • E04H15/20Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/201Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable tubular framework, with or without tent cover

Abstract

PURPOSE: A nozzle apparatus of a die casting extruder is provided to improve working efficiency and productivity by keeping a molten metal flowing through a nozzle hole of a uniform temperature and to maintain a pleasant working environment. CONSTITUTION: A molten metal supplied from a melting furnace flows into a nozzle hole(11) of a nozzle unit(10) while being solidified due to rapid temperature falling. The temperatures of respective portions are sensed by two temperature sensors(12) of the nozzle unit and a corresponding signal is transmitted to an electronic circuit. The electronic circuit receives the signal and supplies a high frequency current to a high frequency coil of a high frequency oscillation unit. Thereby, the nozzle unit is heated at a certain temperature and the molten metal flowing in the nozzle hole is prevented from solidifying.

Description

다이케스팅 압출제조기의 노즐장치{The device nozzle of diecasting pressure out making}The device nozzle of diecasting pressure out making

본 발명은 다이케스팅 압출제조기에 관한 것으로서, 더욱 상세하게는 노즐부에 고주파를 발진시켜 노즐공을 따라 흐르는 금속용해물을 일정한 온도로 유지시킴으로써 작업효율 및 생산성을 크게 향상시킨 다이케스팅 압출제조기의 노즐장치에 관한 것이다.The present invention relates to a die casting extruder, and more particularly, to a nozzle apparatus of a die casting extruder, in which a high frequency oscillation is performed to maintain a metal melt flowing along a nozzle hole at a constant temperature, thereby greatly improving work efficiency and productivity. It is about.

주지된 바와 같이, 금속을 용해시켜 소정의 금속부재로 제조하기 위하여 다이케스팅 압출제조기가 사용되어지는데, 상기 다이케스팅 압출제조기는 크게 나누어 금속을 소정의 온도에서 용해시키는 용해로장치와, 용해로장치에서 용해된 금속용해물을 주사하는 노즐장치와, 노즐장치로부터 주사된 금속용해물을 금형에 주입하여 소정의 형상으로 제조하는 금형장치 등으로 구성된다.As is well known, a die casting extruder is used to melt a metal into a predetermined metal member, and the die casting extruder is divided into a melting apparatus for dissolving the metal at a predetermined temperature and a metal melted in the melting apparatus. And a nozzle apparatus for scanning the melt, and a mold apparatus for injecting the metal melt injected from the nozzle apparatus into a mold to produce a predetermined shape.

여기에서, 본 발명과 관련된 노즐장치에 대해서 좀 더 상세히 설명하면, 도 1과 같이 축방향으로 소정 직경의 노즐공(1a)이 형성된 금속재질의 노즐부(1)가 설치되고, 상기 노즐부(1)의 직하부에 노즐공(1a)을 따라 흐르는 금속용해물의 냉각을 방지할 수 있도록 다수의 화염분사기(2)가 설치된다.Herein, a nozzle apparatus related to the present invention will be described in more detail. As shown in FIG. 1, a nozzle unit 1 made of metal having a nozzle hole 1a having a predetermined diameter in the axial direction is provided, and the nozzle unit ( A plurality of flame sprayers 2 are installed directly below 1) to prevent cooling of the metal melt flowing along the nozzle hole 1a.

즉, 용해로장치로부터 노즐공(1a)으로 공급된 금속용해물은 용해온도 이하로 급속히 낮아져 응고되는데, 이때 화염분사기(2)를 이용하여 노즐부(1)를 금속의 용해온도, 또는 그 이상으로 일정하게 가열하므로서 다이케스팅작업을 연속적으로 수행할 수 있게 된다.That is, the metal lysate supplied from the melting furnace apparatus to the nozzle hole 1a is rapidly lowered to below the melting temperature and solidified. At this time, the flame sprayer 2 is used to move the nozzle unit 1 to the melting temperature of the metal or higher. By constant heating, die casting can be carried out continuously.

그런데, 상기와 같이 종래에는 노즐부(1)를 다수의 화염분사기(2)를 이용하여 가열하기 때문에 화력의 세기를 정밀하게 조절할 수 없어 노즐의 온도분포와 가열온도를 일정하게 유지시키기가 극히 어려울 뿐만 아니라, 이로 인하여 양질의 제품을 생산하기가 매우 어렵다는 문제점이 있었다.However, as described above, since the nozzle unit 1 is heated by using a plurality of flame sprayers 2, it is difficult to precisely control the intensity of the thermal power, and thus it is extremely difficult to keep the temperature distribution and the heating temperature of the nozzle constant. In addition, there was a problem that it is very difficult to produce a quality product.

따라서, 본 발명은 상기와 같은 문제점을 감암하여 창안한 것으로서, 노즐부의 외주부에 고주파발진수단을 설치. 고주파를 발진시키므로서 노즐공을 따라 흐르는 금속용해물을 일정한 온도로 유지시켜 작업효율 및 생산성을 크게 향상시킴은 물론이고, 노즐부의 가열시간과 온도분위기를 정밀하게 제어함은 물론이고 고주파발진수단에 의한 노즐부의 가열속도를 크게 단축시킬 수 있어 양질의 제품을 다량으로 생산할 수 있으며, 또한 화염을 발생시킬 때 발생되는 오염을 완전히 방지할 수 있으므로 쾌적한 작업환경을 유지할 수 있는 다이케스팅 압출제조기의 노즐장치를 제공함에 그 목적이 있다.Therefore, the present invention was conceived to overcome the above problems, and the high frequency oscillation means is provided in the outer peripheral part of the nozzle unit. By oscillating the high frequency, the metal melt flowing along the nozzle hole is maintained at a constant temperature, which greatly improves work efficiency and productivity, and precisely controls the heating time and temperature atmosphere of the nozzle unit. It can reduce the heating speed of the nozzle part by a large amount, and can produce a large amount of high quality products. Also, it can completely prevent the pollution generated when generating a flame, so that the nozzle device of the die casting extrusion manufacturing machine can maintain a comfortable working environment. The purpose is to provide.

도 1은 종래 다이케스팅 압출제조기의 노즐장치를 발췌도시한 구성도,1 is a block diagram illustrating an extract of a nozzle apparatus of a conventional die casting extrusion machine,

도 2는 본 발명에 따른 노즐장치의 노즐부를 발췌도시한 단면도,2 is a cross-sectional view showing an extract of the nozzle unit of the nozzle apparatus according to the present invention;

도 3은 본 발명에 따른 다이케스팅 압출제조기의 노즐장치를 발췌도시한 구성도.Figure 3 is a schematic view showing the extractor nozzle apparatus of the die casting extrusion machine according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10:노즐부 11:노즐공10: Nozzle part 11: Nozzle ball

12:온도감지센서 20:고주파발진수단12: temperature sensor 20: high frequency oscillation means

21:고주파코일 21a:전방가열용 코일21: high frequency coil 21a: front heating coil

21b:후방 가열용 코일 30:단열부재21b: coil for rear heating 30: insulation member

본 발명은 상기와 같은 목적을 달성하기 위하여 금속을 소정의 온도에서 용해시키는 용해로장치와, 용해로장치에서 용해된 금속용해물을 주사하는 노즐장치와, 노즐장치로부터 주사된 금속용해물을 금형에 주입하여 소정의 형상으로 제조하는 금형장치 등으로 구성된 다이케스팅 압출제조기에 있어서, 중심축선상을 따라 노즐공이 형성된 노즐부의 외주부에 고주파코일이 일정하게 배치된 고주파발진수단을 설치하는 한편, 상기 고주파코일의 외주부에 단열부재를 설치한 것을 특징으로 한다.In order to achieve the above object, the present invention provides a melting furnace apparatus for dissolving a metal at a predetermined temperature, a nozzle apparatus for injecting the dissolved metal dissolved in the melting apparatus, and a metal melt injected from the nozzle apparatus into the mold. In the die casting extrusion machine comprising a mold apparatus for manufacturing in a predetermined shape, a high frequency oscillation means in which a high frequency coil is constantly arranged on the outer peripheral portion of the nozzle portion in which the nozzle hole is formed along the center axis line, and the outer peripheral portion of the high frequency coil It characterized in that the insulating member is installed on.

본 발명은 또, 상기 노즐부의 외주부에 고주파발진수단을 설치하되, 상기 고주파발진수단의 고주파코일을 적어도 하나 이상 독립적으로 설치한 다음, 노즐부의 여러 적소에 설치된 온도감지센서의 신호를 받아 동작되게 한 특징이 있다.In another aspect, the present invention is to install a high frequency oscillation means in the outer peripheral portion of the nozzle unit, at least one of the high frequency coils of the high frequency oscillation means is independently installed, and then operated by receiving a signal of a temperature sensor installed in various places of the nozzle unit. There is a characteristic.

이하, 본 발명의 바람직한 일실시예를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 노즐장치의 노즐부를 발췌도시한 단면도이고, 도 3은 본 발명에 따른 다이케스팅 압출제조기의 노즐장치를 발췌도시한 구성도이다.Figure 2 is a cross-sectional view showing an extract of the nozzle unit of the nozzle apparatus according to the present invention, Figure 3 is a block diagram showing an extractor of the nozzle apparatus of the die casting extrusion machine according to the present invention.

노즐장치는 크게 나누어 관형상의 노즐부(10)와. 상기 노즐부(10)를 소정의 온도로 가열시키는 고주파발진수단(20)과, 상기 노즐부(10)의 열이 외부로 방출되는 것을 방지하는 단열부재(30)로 구성된다.The nozzle device is largely divided into a tubular nozzle part 10 and the tubular nozzle part 10. High frequency oscillation means 20 for heating the nozzle unit 10 to a predetermined temperature, and the heat insulating member 30 for preventing the heat of the nozzle unit 10 to be discharged to the outside.

먼저, 노즐부(10)는 열전도가 탁월하면서 강자성체인 금속재질로 형성되며, 상기 노즐부(10)의 중심축선상을 따라 소정 직경의 노즐공(11)이 형성되는데, 상기 노즐공(11)은 금속용해물의 압출용량에 따라 그 직경이 달라지며, 상기 노즐부(10)의 인입구 주변과 중간부분에 노즐부(10)의 각 부분의 온도를 감지하는 온도감지센서(12)가 설치된다.First, the nozzle unit 10 is formed of a metal material which is excellent in thermal conductivity and ferromagnetic material, and a nozzle hole 11 having a predetermined diameter is formed along the central axis of the nozzle unit 10. The diameter varies according to the extrusion capacity of the silver metal lysate, and a temperature sensor 12 is installed at the periphery and the middle of the nozzle part 10 to sense the temperature of each part of the nozzle part 10. .

그리고, 고주파발진수단(20)은 노즐부(10)의 외주부에 고주파전류가 흐르는 동파이프로 된 고주파코일(21)이 설치되는데, 상기 고주파코일(21)은 전방가열용 코일(21a)과 후방가열용 코일(21b)로 구획 설치되어 노즐부(10)에 설치된 온도감지센서(12)의 감지된 온도에 따라 노즐부(10)의 전방과 후방, 또는 전체를 선택적으로 유도가열하게 된다.In addition, the high frequency oscillation means 20 is provided with a high frequency coil 21 made of copper pipe through which a high frequency current flows on the outer circumference of the nozzle unit 10. The high frequency coil 21 has a front heating coil 21a and a rear side. Partitioned with a heating coil (21b) is to selectively induction heating the front and rear, or the whole of the nozzle unit 10 in accordance with the detected temperature of the temperature sensor 12 installed in the nozzle unit (10).

이때, 유도가열이란 고주파전류가 흐르는 코일속에 위치한 금속 등의 도전체는 와전류 손실과 히스테리시스(hysteresis) 손실(자성체의 경우)에 의하여 고온의 열이 발생하게 되며, 이 열을 이용하여 피가열물질인 노즐부(10)를 가열하는 것을 말한다.In this case, induction heating means that a conductor such as a metal located in a coil in which a high frequency current flows generates high temperature heat due to eddy current loss and hysteresis loss (in the case of magnetic material). It means heating the nozzle unit 10.

한편, 단열부재(30)는 고주파코일(21)의 외주부에 밀폐가능하게 설치되어 고주파코일(21)에 의해 가열된 노즐부(10)의 열이 외부로 방출되는 것을 방지하고, 노즐부(10)를 일정한 온도로 유지시켜 준다.On the other hand, the heat insulating member 30 is installed to be sealed to the outer peripheral portion of the high frequency coil 21 to prevent the heat of the nozzle unit 10 heated by the high frequency coil 21 to be discharged to the outside, the nozzle unit 10 ) At a constant temperature.

본 발명인 노즐장치의 작용을 상세히 설명하면 다음과 같다.Referring to the operation of the nozzle device of the present invention in detail as follows.

용해로장치에서 공급된 금속용해물은 노즐부(10)의 노즐공(11)에 유입됨과 동시에 용해온도 이하로 급속히 낮아져 응고되는데, 이때 노즐부(10)의 두 온도감지센서(12)에서 각 부분의 온도를 감지하여 전자회로장치에 신호를 보내게 되고, 상기 전자회로장치는 그 신호를 받아 고주파발진수단(20)의 고주파코일(21)에 고주파전류를 공급하여 노즐부(10)를 소정의 온도로 가열하므로서 노즐공(11) 내부를 흐르는 금속용해물이 경화되는 것을 방지하게 된다.The metal lysate supplied from the smelting apparatus flows into the nozzle hole 11 of the nozzle unit 10 and solidifies rapidly below the melting temperature. At this time, each part of the two temperature sensors 12 of the nozzle unit 10 is solidified. The electronic circuit device senses the temperature and sends a signal to the electronic circuit device. The electronic circuit device receives the signal and supplies a high frequency current to the high frequency coil 21 of the high frequency oscillation means 20 to supply the nozzle unit 10 with a predetermined amount. By heating to a temperature, the metal melt flowing in the nozzle hole 11 is prevented from being cured.

이에 대해서 좀 더 부연하자면, 노즐부(10)의 두 온도감지센서(12)에서 노즐부(10)의 온도를 감지하였을 때 노즐부(10)의 인입부분보다 중간부분의 온도가 낮을 시에는 노즐부(10) 전방의 전방가열용 코일(21a)보다 노즐부(10) 후방의 후방가열용 코일(21b)에 더 높은 고주파전류를 공급하여 노즐부(10)의 전체 온도를 용해온도 이상으로 일정하게 유지시켜 주므로서 금속용해물이 경화되는 것을 방지하게 된다.In more detail, when the temperature of the nozzle unit 10 detects the temperature of the nozzle unit 10 by the two temperature sensors 12 of the nozzle unit 10, the nozzle is lowered when the temperature of the middle portion is lower than the inlet portion of the nozzle unit 10. By supplying a higher frequency current to the rear heating coil 21b behind the nozzle unit 10 than the front heating coil 21a in front of the unit 10, the entire temperature of the nozzle unit 10 is fixed above the melting temperature. It keeps to prevent the metal melt hardening.

한편, 고주파코일(21)의 외주부에는 단열부재(30)가 밀폐가능하게 설치되어 고주파코일(21)에 의해 가열된 노즐부(10)의 열이 외부로 방출되는 것을 방지하고, 노즐부(10)를 일정한 온도로 유지시켜 준다On the other hand, the heat insulating member 30 is installed on the outer circumferential portion of the high frequency coil 21 so as to be sealed to prevent the heat of the nozzle unit 10 heated by the high frequency coil 21 from being discharged to the outside, and the nozzle unit 10 Keep) at a constant temperature

따라서, 본 발명은 노즐부(10)의 외주부에 고주파발진수단(20)을 설치. 고주파를 발진시키므로서 노즐공(11)을 따라 흐르는 금속용해물을 일정한 온도로 유지시켜 작업효율 및 생산성을 크게 향상시킴은 물론이고, 노즐부(10)의 가열시간과 온도분위기를 정밀하게 제어함은 물론이고 고주파발진수단(20)에 의한 노즐부(10)의 가열속도를 크게 단축시킬 수 있어 양질의 제품을 다량으로 생산할 수 있으며, 또한 화염을 발생시킬 때 발생되는 오염을 완전히 방지할 수 있으므로 쾌적한 작업환경을 유지할 수 있는 매우 유용한 효과가 있다.Therefore, the present invention provides a high frequency oscillation means 20 in the outer peripheral portion of the nozzle unit 10. By oscillating high frequency, the metal melt flowing along the nozzle hole 11 is maintained at a constant temperature, thereby greatly improving work efficiency and productivity, as well as precisely controlling the heating time and temperature atmosphere of the nozzle unit 10. Of course, since the heating speed of the nozzle unit 10 by the high frequency oscillation means 20 can be greatly shortened, a large amount of high-quality products can be produced, and the pollution generated when generating a flame can be completely prevented. There is a very useful effect to maintain a comfortable working environment.

Claims (2)

다이케스팅 압출제조기의 노즐장치를 구성함에 있어서,In constructing the nozzle apparatus of the die casting extrusion machine, 중심축선상을 따라 노즐공(11)이 형성된 노즐부(10)의 외주부에 고주파코일 (21)이 일정하게 배치된 고주파발진수단(20)을 설치하는 한편, 상기 고주파코일 (21)의 외주부에 단열부재(30)를 설치한 것을 특징으로 하는 다이케스팅 압출제조기의 노즐장치.On the outer circumference of the nozzle portion 10 in which the nozzle hole 11 is formed along the central axis line, a high frequency oscillation means 20 in which the high frequency coil 21 is constantly arranged is provided, while the outer circumference of the high frequency coil 21 is provided. Nozzle apparatus of a die casting extrusion machine, characterized in that the heat insulating member 30 is installed. 제 1 항에 있어서,The method of claim 1, 상기 노즐부(10)의 외주부에 고주파발진수단(20)을 설치하되, 상기 고주파발진수단(20)의 고주파코일(21)을 적어도 하나 이상 독립적으로 설치한 다음, 노즐부 (10)의 여러 적소에 설치된 온도감지센서(12)의 신호를 받아 가열온도를 가변시킬 수 있게 한 것을 특징으로 한 다이케스팅 압출제조기의 노즐장치The high frequency oscillation means 20 is installed on the outer circumference of the nozzle unit 10, and at least one high frequency coil 21 of the high frequency oscillation means 20 is independently installed, and then several places of the nozzle unit 10 are located. The nozzle device of the die casting extrusion machine, characterized in that the heating temperature is variable by receiving a signal from the temperature sensor 12 installed in the
KR1019990016144A 1999-05-06 1999-05-06 The device nozzle of diecasting pressure out making KR100319698B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019990016144A KR100319698B1 (en) 1999-05-06 1999-05-06 The device nozzle of diecasting pressure out making

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019990016144A KR100319698B1 (en) 1999-05-06 1999-05-06 The device nozzle of diecasting pressure out making

Publications (2)

Publication Number Publication Date
KR20000073086A true KR20000073086A (en) 2000-12-05
KR100319698B1 KR100319698B1 (en) 2002-01-09

Family

ID=19583920

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019990016144A KR100319698B1 (en) 1999-05-06 1999-05-06 The device nozzle of diecasting pressure out making

Country Status (1)

Country Link
KR (1) KR100319698B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100682981B1 (en) * 2006-01-19 2007-02-15 (주)파워인덕션 Induction coil winding structure of high frequency induction heating devise for diecasting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100682981B1 (en) * 2006-01-19 2007-02-15 (주)파워인덕션 Induction coil winding structure of high frequency induction heating devise for diecasting machine

Also Published As

Publication number Publication date
KR100319698B1 (en) 2002-01-09

Similar Documents

Publication Publication Date Title
US20080035298A1 (en) Method and apparatus for temperature control in a continuous casting furnace
CA2414021A1 (en) Method and apparatus for directionally solidified casting
CN113061741B (en) Electroslag remelting composite device and method for improving temperature distribution of slag bath by external magnetic field
CN102189246A (en) Method and device for manufacturing hollow melt ingots
KR100319698B1 (en) The device nozzle of diecasting pressure out making
JPH10103875A (en) Cold crucible induction melting furnace
JP3949208B2 (en) Metal remelting method and apparatus used for manufacturing continuous casting
JP2010149173A (en) Centrifugal casting apparatus and centrifugal casting method
RU182033U1 (en) Print head for molten metal volumetric printing device
KR100950030B1 (en) Non-contact high-frequency induction heating apparatus for plastic mold
CN110877146B (en) Indirect resistance heating device for wire feeding process in additive manufacturing
JP2573450Y2 (en) Liningless induction melting furnace
JPH03106547A (en) Induction melting and holding apparatus for die casting
JP3125466B2 (en) Metal precision casting method and precision casting equipment
JP2001316734A (en) Method for controlling concentration of flow flux in guiding tube
JP2000271706A (en) Twin roll type continuous casting method and device thereof
KR100228574B1 (en) Mould of continuous casting
KR100530829B1 (en) High frequency induction heating devise for diecasting machine , which is dispensable of cooling system for heating coil
JPH05288473A (en) Constructing method for wall of furnace
KR100422678B1 (en) Cooling system of metal mold
JPH09174219A (en) Sleeve for die casting and press-forming method
CN116117115A (en) Casting riser pouring process based on electromagnetic induction heating technology
KR200223393Y1 (en) Tun-dish Appratus for the casting process of copper-alloy and oxygen-free copper product using the electrical resistance heat
JP2005324207A (en) Method for producing metal ingot by using cold crucible furnace, and cold crucible furnace
JP2011045918A (en) Manufacturing method of wire rod, and casting apparatus of wire rod

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
O035 Opposition [patent]: request for opposition
O132 Decision on opposition [patent]
O064 Revocation of registration by opposition: final registration of opposition [patent]
LAPS Lapse due to unpaid annual fee