KR890004278B1 - Continuous bimetal-strip casting machine - Google Patents

Continuous bimetal-strip casting machine Download PDF

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Publication number
KR890004278B1
KR890004278B1 KR1019860000081A KR860000081A KR890004278B1 KR 890004278 B1 KR890004278 B1 KR 890004278B1 KR 1019860000081 A KR1019860000081 A KR 1019860000081A KR 860000081 A KR860000081 A KR 860000081A KR 890004278 B1 KR890004278 B1 KR 890004278B1
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South Korea
Prior art keywords
bimetal
strip
continuous
cooling roller
strip casting
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KR1019860000081A
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Korean (ko)
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KR870006939A (en
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조성석
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박종윤
조성식
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10Supplying or treating molten metal

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

A continuous bimetal strip casting method is useful for application to alloy layers hard to be rolled and has advantages of improving mechanical properties with fine bimetal layers, fining the grain size of precipitates or intermediates, reducing segregations, and saving costs and energy by controlling the thickness of the alloy layers with a cooling roller. The machine comprises a pair of cooling rollers, upper and lower, and cools rapidly a molten metal ejected on the strip of a metal.

Description

연속 2중 금속 주조장치(Contiuous bimetal-strip casting machine)Contiuous bimetal-strip casting machine

첨부도면은 본 발명을 설명키 위한 개략도이며, 도면중 부호 1은 풀림릴, 2는 레벨러, 3은 탈지통, 4는 용융금속통, 5는 후방인장롤, 6은 고주파 가열기, 7은 고주파 용해로, 8은 탕도, 9는 보온로(tundish),10은 보온로 노즐, 11은 하부 냉각로울러, 12는 상부 냉각로울러, 13은 수냉상자, 14는 전방인장로울러, 15는 감음릴을 의미한다.The accompanying drawings are schematic diagrams for explaining the present invention, in which 1 is an unwinding reel, 2 is a leveler, 3 is a degreasing bin, 4 is a molten metal barrel, 5 is a rear tension roll, 6 is a high frequency heater, and 7 is a high frequency melting furnace. , 8 is a water supply, 9 is a tundish, 10 is a furnace nozzle, 11 is a lower cooling roller, 12 is an upper cooling roller, 13 is a water cooling box, 14 is an anterior tension roller, and 15 is a winding. .

본 발명은 급냉법으로 바이메탈 스트립(Bimetal-strip)을 연속적으로 주조하는 장치에 관한 것이다.The present invention relates to an apparatus for continuously casting bimetal strips by quenching.

일반적으로 바이메탈을 제조함에 있어서 냉간압접, 열간압접, 소결법, 폭발가공법 및 주조법등이 알려져 있다. 이러한 방법에 있어서는 생산성이나 수율등이 떨어질 뿐 아니라 에너지 소모가 크고 막대한 시설비와 많은 인력이 필요하게 되는 결점이 있다.In general, in the production of bimetal, cold welding, hot welding, sintering, explosion processing and casting are known. This method has the disadvantage of not only lowering productivity and yield, but also high energy consumption, enormous facility cost, and large manpower.

상기와 같은 결점을 해결하면서도 양질의 바이메틸을 얻기 위하여 본 발명자는 연속 바이메탈 주조장치를 제공코자 하는 것이다.In order to solve the above drawbacks and to obtain high-quality methyl, the inventors of the present invention seek to provide a continuous bimetal casting apparatus.

즉 탄소강스트립이거나 스텐레스 스트립 또는 동(Cu)스트립, 황동스트립 등과 같은 압연판재가 감긴 풀림릴에서 풀리는 판재는 레벨러와 탈지통 및 고주파가 열기와 수냉상자를 거쳐 감음릴에 감기도록 되는 공지의 것에 있어서 하부 냉각로울러와 상부 냉각로울러를 통과하기 직전에 고주파 용해로에서 융용된 켈메트(Kelmet)나 알루미늄합금(Al-Alloy) 또는 바베트합금(Babbit), 황동(Brass), 청동(Bronze) 또는 스텐레스스틸(Stainless steel)이 탕도를 따라 흘러내려서 보온로에 대기했다가 보온로 노즐을 통해 판재상에 2중으로 주조하도록 한 것이다. 이때 합금층의 두께는 0.1-10밀리 등 다양하게 조절됨은 물론이다.In other words, the plate released from the unwinding reel, such as carbon steel strip or stainless steel strip or copper strip, copper strip, brass strip, etc. Just before passing through the lower cooling roller and the upper cooling roller, Kelmet, Al-Alloy or Babbit, Brass, Bronze or Stainless steel Stainless steel flows down the water supply and waits in the heating furnace, and then double casts on the plate through the heating nozzle. At this time, the thickness of the alloy layer is variously adjusted, such as 0.1-10 millimeters.

이하 본 발명을 첨부된 도면에 따라 상술한다. 도면에서 1은 풀림릴로서 상기한 스트립이 감겨져 있는 것을 풀어주는 역할을 하는 것이며, 2는 레벨러로서 각종 스트립을 평평하게 해 주는 역할을 하며, 3은 탈지통으로서 스트립에 묻어 있는 기름기 또는 산화물을 제거하는 역할을 한다. 이와같이 세척된 스트립에는 용융 금속통(4) (용융금속염)을 통과하면서 스트립 형성에 필요한 금속이나 염을 용융시켜 스트립에 미리 피복시키고 고주파가열기 (6)에서 젖음(Wetting)이 잘되도록 스트립의 온도가 조절되어 지도록 되며, 고주파 가열은 환원성 분위기에서 행하도록 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the drawing, 1 is an unwinding reel, which serves to release the wound of the strip, 2 is a leveler, which serves to flatten various strips, and 3 is a degreasing container that removes oil or oxides from the strip. It plays a role. The strip thus washed passes through the molten metal barrel 4 (molten metal salt), melts the metal or salt necessary to form the strip, and coats the strip in advance, so that the temperature of the strip is well wetted in the high frequency heater (6). Is controlled, and the high frequency heating is performed in a reducing atmosphere.

이와같은 스트립에는 고주파 용해로(7)에 용해된 합금은 탕도(8)를 통해 보온고(tundish) (9)로 용금이 공급되어 보온로 노즐(10)은 용금을 균일하게 공급할수 있도록 장방형으로 되어 스트립상에 사출시켜 하부 냉각 로울러(11)와 상부 냉각로울러(12)로 합금층의 두께를 조절하도록 되어 있다. 이와같은 상부로울러(12)는 흑연으로 피복한 동 로울러이며, 내부는 수냉식이며 로울러의 재질은 황동, 스텐레스 스틸 등 바이메탈(bimetal)의 종류에 따라 선택할수 있다. 또 상부 냉각로울러(11)의 하부 냉각로울러(12)는 지름이 서로 같을 수도 있으며 다를수도 있다.In such a strip, the alloy dissolved in the high-frequency melting furnace 7 is supplied with molten metal through the water bath 8 to the tundish 9 so that the thermal furnace nozzle 10 has a rectangular shape so as to uniformly supply the molten metal. Injecting onto the strip to control the thickness of the alloy layer with the lower cooling roller 11 and the upper cooling roller 12. The upper roller 12 is a copper roller coated with graphite, the inside is water-cooled, the material of the roller can be selected according to the type of bimetal (bimetal) such as brass, stainless steel. In addition, the lower cooling roller 12 of the upper cooling roller 11 may have the same diameter or different.

이와같이 형성된 스트립은 수냉상자(13)와 전방인장로울러(14)에 의해 인출되어 감음릴(15)에 감기도록 한다.The strip thus formed is drawn out by the water cooling box 13 and the front tension roller 14 so as to be wound around the winding reel 15.

상기한 상부 냉각로울러(12)에 의해 급냉하면 재질적 효과와 공정의 생략효과가 나타나게 되는 것이다. 즉 바이메탈의 금속층이 매우 미세하게 되어 기계적 성질이 우수하게 되고, 또 석출물이나 개재물이 미세하게 된다. 또 편석도 절감될 뿐 아니라 합금층의 압연이 곤란한 경우 본 발명에 의하면, 더욱 유용하다. 더욱이 본 발명에 의하면 냉각로울러에 의해 합금층의 두께를 임의로 조절할수 있기 때문에 종래의 압접법이나 폭발가공법 및 소결법이나 원상주조법에 비해 공정이 크게 생략되어 시설비와 에너지를 절감할수 있는 효과가 있다.When quenched by the upper cooling roller 12, the material effect and the elimination effect of the process will appear. In other words, the metal layer of the bimetal becomes very fine, the mechanical properties are excellent, and the precipitates and inclusions are fine. In addition, segregation is also reduced, according to the present invention is more useful when the alloy layer is difficult to roll. Furthermore, according to the present invention, since the thickness of the alloy layer can be arbitrarily adjusted by the cooling roller, the process is largely omitted compared to the conventional press welding method, the explosion processing method, the sintering method, and the original casting method, thereby reducing the facility cost and energy.

Claims (1)

상부 냉각로울러(12)와 하부 냉각로울러(11)로 되는 한쌍의 로울러에 의해 스트립상에 보온로 노즐(10)에 의해 사출되는 용금을 급냉하여 주도록 되는 것을 특징으로 하는 연속 2중 금속 주조장치.A continuous double metal casting apparatus, characterized in that to quench the molten metal injected by the thermal furnace nozzle (10) on the strip by a pair of rollers consisting of the upper cooling roller (12) and the lower cooling roller (11).
KR1019860000081A 1986-01-09 1986-01-09 Continuous bimetal-strip casting machine KR890004278B1 (en)

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KR1019860000081A KR890004278B1 (en) 1986-01-09 1986-01-09 Continuous bimetal-strip casting machine

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KR1019860000081A KR890004278B1 (en) 1986-01-09 1986-01-09 Continuous bimetal-strip casting machine

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KR870006939A KR870006939A (en) 1987-08-13
KR890004278B1 true KR890004278B1 (en) 1989-10-30

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