KR0176432B1 - Manufacturing method of aluminum thin sheet - Google Patents
Manufacturing method of aluminum thin sheet Download PDFInfo
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- KR0176432B1 KR0176432B1 KR1019910023387A KR910023387A KR0176432B1 KR 0176432 B1 KR0176432 B1 KR 0176432B1 KR 1019910023387 A KR1019910023387 A KR 1019910023387A KR 910023387 A KR910023387 A KR 910023387A KR 0176432 B1 KR0176432 B1 KR 0176432B1
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- alcohol solution
- polyvinyl alcohol
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
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- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
본 발명은 알루미늄박판 제조방법을 개시한다.The present invention discloses a method for producing aluminum sheet.
본 발명에 따른 알루미늄박판 제조방법을 금형상면에 폴릴비닐알코올 용액을 분무시켜 도포한 단계, 폴리비닐알코올 용액이 도포된 금형상면에 테두리가 형성되도록 마스킹하는 단계, 마스킹에 의해 테두리가 형성된 금형상면에 프레임을 이용하여 알루미늄을 소정두께만큼 스프레이하는 단계, 알루미늄이 스프레이된 금형 전면에 걸쳐 합성수지로서 시일링하여 냉각하는 단계, 금형과 알루미늄박판을 분리하는 단계, 상기 금형과 알루미늄박판의 분리단계 후에 물로써 폴리비닐알코올 용액을 제거하는 단계를 포함하여 된 것으로서 값이 싸고 가벼우며 비금속과의 접합시 접착력이 우수한 알루미늄박판을 얻을 수 있다.Spraying the polyvinyl alcohol solution on the upper surface of the mold according to the present invention by spraying a polyvinyl alcohol solution, masking such that the edge is formed on the mold upper surface to which the polyvinyl alcohol solution is applied, the upper surface of the mold formed by the mask Spraying aluminum by a predetermined thickness using a frame, sealing and cooling it with synthetic resin over the entire surface of the aluminum sprayed mold, separating the mold and the aluminum sheet, and separating the mold and the aluminum sheet with water. Including the step of removing the polyvinyl alcohol solution, it is possible to obtain an aluminum sheet having low cost, light weight, and excellent adhesion when bonding with a nonmetal.
Description
제1도 (a)~(d)는 본 발명에 따른 알루미늄박판 제조방법에 있어 그 공정을 도시한 개략적 단면도 및 평면도이다.1 (a) to (d) is a schematic cross-sectional view and a plan view showing the process in the aluminum thin plate manufacturing method according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 금형 2 : PVA용액1: mold 2: PVA solution
3 : 알루미늄박판 5 : 합성수지3: aluminum sheet 5: synthetic resin
본 발명은 알루미늄박판 제조방법에 관한 것이다.The present invention relates to a method for producing aluminum sheet.
일반적으로 알루미늄박판은 그 사용 용도가 다양한 것이지만 특히 항공기 동체 등에 낙뢰에 의한 피해를 막기 위한 피뢰침 대용으로 사용되고 있다.In general, aluminum thin plates are used for various purposes, but in particular, they are used as lightning rods to prevent damage caused by lightning strikes in aircraft fuselages.
상기와 같은 알루미늄박판을 제조하기 위한 종래 알루미늄박판 제조방법은 알루미늄강편(Billet)를 적정온도로 가열하여 대형압연기로서 롤링함으로써 이를 제조하는 것이다.Conventional aluminum sheet manufacturing method for manufacturing the aluminum sheet as described above is to produce it by heating the aluminum sheet (Billet) to a suitable temperature and rolling as a large rolling mill.
하지만 이와 같은 알루미늄박판 제조방법은 원하는 두께의 알루미늄박판을 얻기가 힘든 것이다. 즉, 압연기의 롤러간격을 정확히 조정하여야 하는 것이지만 그 공차는 매우 큰 것이기 때문에 원하는 알루미늄박판 두께보다 두껍거나 또는 얇은 박판이 제조되는 것이 다반사였다. 또한 알루미늄강판이 압연기를 통과하여 박판으로 제조됨에 있어서는 알루미늄박판의 조직이 매우 치밀해진다는 문제점이 있었다. 이에 이해서는 복잡한 외형의 부품에 적용하기는 그 성형이 몹시 어려운 것이었다.However, such a method of manufacturing aluminum foil is difficult to obtain the aluminum foil of the desired thickness. In other words, the roller spacing of the rolling mill must be accurately adjusted, but because the tolerance is very large, it has been widely reflected that thin or thin plates are manufactured that are thicker or thinner than the desired aluminum sheet thickness. In addition, when the aluminum steel sheet is passed through a rolling mill to produce a thin plate, there is a problem that the structure of the aluminum thin plate becomes very dense. The molding was very difficult to apply to parts of complex appearance.
본 발명은 상기와 같은 문제점을 감안하여 창출된 것으로서, 압연기를 사용하지 않고 몰드 즉, 금형위에 플레임을 사용하여 용융된 알루미늄을 스프레이하여 알루미늄박판을 제조함으로써 그 조직이 치밀하지 않아 성형이 손쉽고 비금속과의 접합시 접착력이 우수하며 가볍고 값이 싼 알루미늄박판의 제조방법을 제공함에 그 목적이 있다.The present invention has been made in view of the above-mentioned problems, and by spraying molten aluminum using a flame on a mold, that is, a mold, without using a rolling mill, to manufacture an aluminum thin plate, its structure is not dense and easy to mold, and The purpose of the present invention is to provide a method for producing a light and inexpensive aluminum sheet having excellent adhesive strength when bonding.
상기 목적을 달성하기 위하여 본 발명에 따른 알루미늄박판의 제조방법은, 금형상면에 폴리비닐알코올 용액을 분무시켜 도포한 단계, 폴리비닐알코올 용액이 도포되어 건조된 금형상면에 테두리가 형성되도록 알루미늄판으로 마스킹하는 단계, 마스킹에 의해 테두리가 형성된 금형상면에 프레임을 이용하여 알루미늄을 용사하여 소정두께를갖도록 스프레이하는 단계, 알루미늄이 스프레이된 금형 전면에 걸쳐 합성수지로서 시일링하여 냉각하는 단계, 금형과 알루미늄박판을 분리하는 단계, 알루미늄박판 저면에 붙은 폴리비닐알코올 용액을 물로써 제거하는 단계를 순차포함하여 된 것에 그 특징이 있다.In order to achieve the above object, a method of manufacturing an aluminum thin plate according to the present invention includes spraying a polyvinyl alcohol solution on a mold upper surface, and applying an polyvinyl alcohol solution to an aluminum plate to form an edge on the dried mold upper surface. Masking, spraying aluminum to a predetermined thickness by spraying aluminum on the upper surface of the mold formed by the masking, sealing and cooling the synthetic resin over the entire surface of the aluminum sprayed mold, and cooling the mold and the aluminum sheet Separating step, the step of removing the polyvinyl alcohol solution attached to the bottom of the aluminum sheet with water in order to include sequentially.
이하 본 발명에 따른 알루미늄박판 제조방법의 바람직한 일실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings a preferred embodiment of the aluminum sheet manufacturing method according to the present invention will be described in detail.
본 발명에 따른 알루미늄박판 제조방법은 제1도에 도시된 바와 같은 제조공정에 의해 제조된다.The aluminum sheet manufacturing method according to the present invention is produced by a manufacturing process as shown in FIG.
즉, 제1도(a)에 도시된 바와 같이 금형(1)상면에 폴리비닐알코올(Poly-Vinyl-Alcohol: 이하 PVA로 약칭함)용액(2)을 도포한다. 이 PVA용액(2)은 금형(1)과 후술하는 알루미늄박판(3)과의 원활한 분리목적으로 도포하는 것으로서 프레임(flame)에 의해 알루미늄용액을 용사할시 그 열과 충격에 충분히 견딜 수 있는 것이다.That is, a polyvinyl alcohol (Poly-Vinyl-Alcohol: hereinafter abbreviated as PVA) solution 2 is applied to the upper surface of the mold 1 as shown in FIG. The PVA solution 2 is applied for the purpose of smooth separation between the mold 1 and the aluminum thin plate 3 to be described later. The PVA solution 2 is sufficiently resistant to heat and impact when the aluminum solution is sprayed by a flame.
또한, PVA용액(2)을 도포함에 있어서는 금형(1) 표면에 기포가 발생되지 않도록 분무(噴霧)상태로 도포시키고 완전히 건조(dry)시킨다. 그리고 도포방법은 도시된 바와 같이 ①→②→③→④의 순서대로 박스 크로싱(Box Crossing)방법으로 도포함이 바람직하다. 이는 균일한 두께로 도포시키고 또한 완전히 건조된 상태에서 질긴 상태로 유지하기 위해서이다.In the application of the PVA solution 2, the surface of the mold 1 is applied in a sprayed state so that no bubbles are generated and completely dried. In addition, the coating method is preferably included as a box crossing method in the order of ① → ② → ③ → ④ as shown. This is to be applied in a uniform thickness and to keep it tough in a completely dried state.
또한, 제1도(b)에 도시된 바와 같이 상기 PVA용액(2)이 도포건조된 금형(1)상면에 알루미늄판(4)으로서 마스킹(Masking)하여 테두리부를 형성시킨다. 이때 알루미늄판(4)으로 마스킹하는 것은 알루미늄용액을 프레임에 의해 용사할시 그 열팽창을 알루미늄판(4)이 충분히 견딜 수 있기 때문이다.Further, as shown in FIG. 1 (b), the PVA solution 2 is masked as an aluminum plate 4 on the top surface of the mold 1 to which the PVA solution 2 is applied and dried to form an edge portion. The masking with the aluminum plate 4 at this time is because the aluminum plate 4 can withstand the thermal expansion sufficiently when the aluminum solution is sprayed by the frame.
또한 제1도(c)에 도시된 바와 같이 마스킹에 의해 테두리부를 갖는 금형(1)상면에 프레임(도시되지 않음)을 사용하여 스프레이시킨다. 즉, 알루미늄을 용사(溶射)시킨다. 프레임에 의해 알루미늄용사 완료후 그 두께가 소정의 두께를 갖는지 확인하기 위해서는 마스킹부위 즉, 테두리부의 알루미늄판(4)을 떼어낸 뒤 두깨를 측정한다. 이때 원하는 두께로 되지 않았을 경우 원하는 두께를 갖도록 알루미늄을 더 용사시키면 가능하다.Further, as shown in FIG. 1 (c), a frame (not shown) is sprayed on the upper surface of the mold 1 having an edge by masking. That is, aluminum is sprayed. In order to confirm that the thickness has a predetermined thickness after completion of aluminum spraying by the frame, the thickness of the masking part, that is, the aluminum plate 4 of the edge part is removed and the thickness is measured. In this case, if it does not become the desired thickness, it is possible to further spray aluminum to have a desired thickness.
한편 프레임에 의해 알루미늄을 용사함에 있어서 이에 사용되는 순수알루미늄 와이어는 1/8인치(inch) 직경을 갖는 것이 바람직하며 순수알루미늄 와이어의 스피드 즉, 프레임에 의해 용사되는 속도는 90±15inch/min이 바람직하다.On the other hand, the pure aluminum wire used to spray aluminum by the frame is preferably 1/8 inch (inch) diameter and the speed of the pure aluminum wire, that is, the rate of the sprayed by the frame is preferably 90 ± 15 inches / min Do.
그리고 프레임 건(gun)과 작업물 즉, 금형(1)과의 거리는 4~8inch, 프레임건의 스피드는 10~20inch/sec로 하는 것이 바람직하다. 그리고 이때 금형(1)의 온도는 크랙킹(cracking), 버클링(buckling) 등의 현상이 발생되지 않도록 48℃ 이하 유지하는 것이 바람직하다.The distance between the frame gun and the workpiece, that is, the mold 1, is 4 to 8 inches, and the speed of the frame gun is preferably 10 to 20 inches / sec. In this case, the temperature of the mold 1 is preferably maintained at 48 ° C. or lower so that a phenomenon such as cracking and buckling does not occur.
또한 제1도(d)에 도시된 바와 같이 알루미늄이 용사된 금형상면에 합성수지(5)로서 그 전면을 시일링(Sealing)한 후 소정온도(130±10℉)에서 적어도 2시간정도 냉각한다. 이는 알루미늄박판(3)이 금형(1)에서 파손되지 않고 쉽게 분리시킬 수 있게 하기 위해서이다.In addition, as shown in (d) of FIG. 1, after sealing the entire surface of the aluminum-sprayed mold upper surface as a synthetic resin 5, the substrate is cooled at a predetermined temperature (130 ± 10 ° F) for at least 2 hours. This is to enable the aluminum foil 3 to be easily separated without being broken in the mold 1.
이때 사용되는 합성수지는 파이버리트 주식회사(FIBERITE COMP)의 MXR 7774 A 100g에 MAX 7774 B 47g의 비율로 섞은 것을 사용함이 바람직하며, 1스퀘어피트(Square feet)당 15~29g을 사용함이 바람직하다.At this time, the synthetic resin used is preferably mixed with a ratio of MAX 7774 B 47g to MXR 7774 A 100g of FIBERITE COMP, Inc., it is preferable to use 15 ~ 29g per square feet (Square feet).
상기와 같은 제조공정을 거친 뒤 알루미늄박판(3)을 금형(1)에서 떼어내면 상기 알루미늄박판(3)의 저면에는 폴리비닐알코올용액이 묻어 있는 바 이는 물에 쉽게 녹는 것으로서 물로써 이를 제거하면 얻고자 하는 알루미늄박판(3)을 완성시킬 수 있는 것이다.After removing the aluminum thin plate 3 from the mold 1 after the manufacturing process as described above, the bottom surface of the aluminum thin plate 3 has a polyvinyl alcohol solution, which is easily dissolved in water and is obtained by removing it with water. It is to be able to complete the aluminum thin plate (3).
상술한 바와 같이 본 발명의 알루미늄박판 제조방법에 의하면 프레임을 사용하여 알루미늄융사시켜 알루미늄박판을 얻는 것으로서 가볍고, 성형하기가 용이하며 비금속과의 접합시 접착력이 양호한 알루미늄박판을 얻을 수 있다.As described above, according to the manufacturing method of the aluminum thin plate of the present invention, the aluminum thin plate is obtained by fusing aluminum using a frame to obtain an aluminum thin plate.
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KR1019910023387A KR0176432B1 (en) | 1991-12-18 | 1991-12-18 | Manufacturing method of aluminum thin sheet |
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KR1019910023387A KR0176432B1 (en) | 1991-12-18 | 1991-12-18 | Manufacturing method of aluminum thin sheet |
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KR0176432B1 true KR0176432B1 (en) | 1999-02-18 |
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