KR20030003804A - An Al alloy materal for foaming by waste Al and Al alloy scrap, and a method of thereof - Google Patents
An Al alloy materal for foaming by waste Al and Al alloy scrap, and a method of thereof Download PDFInfo
- Publication number
- KR20030003804A KR20030003804A KR1020010039373A KR20010039373A KR20030003804A KR 20030003804 A KR20030003804 A KR 20030003804A KR 1020010039373 A KR1020010039373 A KR 1020010039373A KR 20010039373 A KR20010039373 A KR 20010039373A KR 20030003804 A KR20030003804 A KR 20030003804A
- Authority
- KR
- South Korea
- Prior art keywords
- powder
- aluminum alloy
- foamed
- foaming
- additive
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
Abstract
Description
본 발명은 공해의 원인이 되는 폐알미늄 및 알미늄합금스크랩을 자원재활용 및 에너지절감 측면에서 시설비가 저렴하고 제조조건이 간단한 원심분무장치를 이용하여 경제적이며 고부가가치를 갖는 발포용 알미늄합금분말을 제조하는 방법과, 이들 알미늄합금분말과 발포재 분말을 맷돌분쇄혼합장치에서 균일하게 혼합하여 고밀도 냉간압분체를 제조하는 방법과 이들 압분체를 열간압출하여 봉상, 프로파일 및 판상으로 제조하여 우수한 기계적성질, 열적성질, 음향성질, 에너지 흡수성질, 저밀도 등의 성질을 고루 갖춘 다기능 발포용 알미늄합금소재를 제조하는 방법에 관한 것이다.The present invention is to produce a foamed aluminum alloy powder having economical and high value using a centrifugal spray device with low facility costs and simple manufacturing conditions in terms of recycling resources and energy saving waste aluminum and aluminum alloy scrap that causes pollution. Method and a method for producing a high density cold pressed powder by uniformly mixing the aluminum alloy powder and the foam powder in a mill grinder, and hot-extruded these powders to produce rods, profiles and plates to provide excellent mechanical properties and thermal properties. The present invention relates to a method for producing a multifunctional foamed aluminum alloy material having properties such as properties, acoustic properties, energy absorption properties, and low density.
생활수준의 향상과 산업의 고도화에 따라 수송장치의 경량화, 소음제거, 진동흡수, 충격에너지 흡수, 전자파차폐, 환경오염방지에 대한 요구가 세계적 추세이다. 이러한 요구에 부응하여 발포다공질 금속재료가 여러 가지 방법으로 개발되고 있다. 발포 다공질 금속제조법에는 크게 금속분말법과 주조법이 있다. 금속분말법은 금속분말제조, 금속분말과 발포재 분말의 혼합, 혼합분말의 압분, 압분체의 열간 성형, 성형체의 발포열처리 공정으로 구성되어 있다.With the improvement of living standards and the advancement of the industry, there is a global trend to reduce the weight of transportation equipment, remove noise, absorb vibration, absorb shock energy, shield electromagnetic waves, and prevent environmental pollution. In response to this demand, porous porous metallic materials have been developed in various ways. Foamed porous metal manufacturing methods are mainly a metal powder method and a casting method. The metal powder method is composed of metal powder production, mixing of metal powder and foam powder, compacting of mixed powder, hot forming of the green compact, and heat treatment of foaming of the molded product.
현재 사용되고 있는 알미늄금속 분말법은 알미늄분말제조시에 순금속을 가스분무하여 사용하기 때문에 매우 비싼 것이 결점이다. 알미늄분말과 발포분말을 혼합할 때 금속분말표면이 매끄러운 것을 사용하기 때문에 발포재의 분포가 불균일하여 균일한 기공분포를 갖는 알미늄발포 재료를 제조하는데 어려움이 있다. 또한, 혼합분말을 금형에 넣고 압분할 때 작은 발포재 분말이 금형 밑바닥으로 몰리기 때문에 발포재분말의 편석이 심하게 일어나 균일한 알미늄발포 재료를 제조할 수 없는 문제점이 있었다,The aluminum metal powder method currently used is very expensive because pure metal is used by gas spraying in the production of aluminum powder. Since the surface of the metal powder is used to mix the aluminum powder and the foamed powder, it is difficult to produce an aluminum foamed material having a uniform pore distribution due to uneven distribution of the foam. In addition, when the mixed powder is put into the mold and compacted, the small foam powder is driven to the bottom of the mold, causing segregation of the foam powder so severe that there is a problem that a uniform aluminum foam material cannot be manufactured.
또한, 발포열처리할 때 금형의 압력변화를 부여할 수 없기 때문에 발포부품 제조시 표면정도와 치수정도를 맞추는 것이 어렵고, 발포알미늄합금을 코어로 하는 샌드위치 패널 제조시에는 발포알미늄합금표면에 곧바로 다른 금속판을 냉간압접하기 때문에 결합력이 떨어지는 결점을 가지고 있다,In addition, since the pressure change of the mold cannot be imparted during the heat treatment of foaming, it is difficult to match the surface accuracy and the dimensional accuracy when manufacturing the foamed parts, and when manufacturing a sandwich panel made of the foamed aluminum alloy as a core, another metal plate is directly on the surface of the foamed aluminum alloy. Because of cold welding, it has a drawback of low bonding strength.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출된 것으로 본 발명의 목적은 폐알미늄과 알미늄합금스크랩을 사용하므로써 저렴하게 발포용 알미늄합금분말을 제조할 수 있을 뿐만 아니라 폐 알미늄합금스크랩에 들어있는 불순물 및 기합금 첨가물질인 철(Fe), 구리(Cu), 마그네슘(Mg), 아연(Zn), 규소(Si) 등을 이용하여 발포용 알미늄합금의 점도와 강도를 증가시켜 균일한 기공크기와 분포를 얻는데 도움이 되도록 하고, 침상발포용 알미늄합금분말을 맷돌분쇄혼합기(stonemill Mixer)를 사용하여 분말 표면 및 내부에 발포재분말이 박힐수 있도록하여 발포재분말이 균일하게 섞이도록 한 후, 냉간압분하고 열간압출하여 기공의 크기와 분포를 균일하게 조절하고 표면정도와 치수정도를 높여 저밀도, 고강도, 높은 에너지 흡수능력, 소음흡수, 진동흡수 성질등을 고루 갖춘 다기능 발포용 알미늄합금소재를 환경 친화적이면서 재활용이 가능하고 저비용으로 고속생산이 가능하도록 제조하는 방법을 제공하는데 있다.The present invention has been made to solve the conventional problems as described above is an object of the present invention by using waste aluminum and aluminum alloy scrap can be produced inexpensively prepared aluminum alloy powder for foaming as well as waste aluminum alloy scrap Uniform pores by increasing the viscosity and strength of the foamed aluminum alloy using iron (Fe), copper (Cu), magnesium (Mg), zinc (Zn), silicon (Si), etc. It helps to obtain the size and distribution, and the needle powder is mixed uniformly by using a stone mill mixer to make the foam material powder get stuck on the surface and inside of the powder. Cold press and hot extrusion to uniformly control the size and distribution of the pores and increase the surface accuracy and dimension accuracy, low density, high strength, high energy absorption capacity, noise absorption, vibration The number of friendly aluminum alloy uniformly with multi-functional characteristics, such as a foam material environment, yet it is possible to recycle and to provide a process for producing high-speed production at a low cost.
상기와 같은 본 발명의 목적을 달성하기 위해 본 발명은 폐알미늄 및 알미늄 합금 스크랩을 이용한 발포용 알미늄 합금 소재 및 그 제조 방법에 있어서 원심 분무법을 이용하여 발포용 알미늄 합금 분말을 제조하는 단계(S1)In order to achieve the object of the present invention as described above, the present invention provides a step for producing a foamed aluminum alloy powder using a centrifugal spray method in the foamed aluminum alloy material and a method for producing the waste aluminum and aluminum alloy scrap (S1).
상기 단계(S1)에서의 분말에 첨가재 분말과 발포재 분말을 혼합하여 맷돌 분쇄 혼합기로 혼합분말을 제조하는 단계(S2)Mixing the additive powder and the foam powder to the powder in the step (S1) to prepare a mixed powder with a mill grind mixer (S2)
상기 단계(S2)에서의 혼합분말을 압축기로 가압하여 혼합분말 압분체를 제조하는 단계(S3)Pressing the mixed powder in the step (S2) with a compressor to produce a mixed powder green compact (S3)
그리고 상기 단계(S3)에서의 혼합분말 압분체를 열간 압출하는 단계(S4)로 구성됨을 특징으로 하는 발포용 알미늄 합금 소재 및 그 제조 방법을 제공한다.And it provides a foamed aluminum alloy material and a method for producing the same, characterized in that the step (S4) of hot pressing the mixed powder green compact in the step (S3).
여기서 상기 원심 분무법은 턴디쉬에 용융 알미늄을 장입하고 턴디쉬 하부의 노즐을 통하여 하방으로 유출시켜 노즐하부에 설치된 평탄회전자의 중심으로 떨어지게 하여 원심력으로 분산시켜 80∼700㎛크기의 급속응고 침상형 알미늄 합금 분말로 제조하는 것이 바람직하다.Here, the centrifugal spraying method is to charge molten aluminum into the tundish and flow downward through the nozzle under the tundish to fall to the center of the flat rotor installed at the bottom of the nozzle to disperse by centrifugal force and rapidly solidify needle type of 80 ~ 700㎛ size. Preference is given to producing aluminum alloy powders.
또한 상기 알미늄 합금 분말은 폐알미늄 및 알미늄 합금 스크랩을 용융시킨후 알미늄 합금 소재의 점도를 높이고 소성가공성과 발포성형성을 좋게하기 위하셔 Si가 4∼8%, Cu가 2∼6% 및 Mg가 4∼7% 포함되게 하며, 상기 첨가재 분말은 점도, 성형성 및 강도를 조절하기 위하여 순 Al분말, A1-30%Cu분말, Al-10%Si분말, Al-30%Mg분말, Al-30%Zn분말, Al2O3분말, SiC분말로 구성되는 그룹으로부터 선택되는 1또는 1이상의 분말이고, 상기 발포제 분말을 기공분포성과 크기를 조절하기 위하여 TiH2,ZrH2또는 Na2CO3중 1또는 1이상의 혼합분말로 하는 것이 바람직하다.In addition, the aluminum alloy powder has 4 to 8% of Si, 2 to 6% of Cu, and 4 to 4% of Mg in order to increase the viscosity of the aluminum alloy material and to improve plasticity and foamability after melting the waste aluminum and the aluminum alloy scrap. In order to control the viscosity, formability and strength, the additive powder is pure Al powder, A1-30% Cu powder, Al-10% Si powder, Al-30% Mg powder, Al-30% At least one powder selected from the group consisting of a Zn powder, an Al 2 O 3 powder, and a SiC powder, and at least one of TiH 2, ZrH 2, or Na 2 CO 3 for controlling pore distribution and size of the blowing agent powder. It is preferable to use at least one mixed powder.
여기서, 상기 첨가제 분말의 양은 점도, 성형성 및 강도 조절을 위하여 5∼20%이며, 상기 발포제 분말의 양은 기공크기와 분포를 조절하기 위하여 0.5%∼1.0%로 한다.Here, the amount of the additive powder is 5 to 20% for the viscosity, moldability and strength control, the amount of the blowing agent powder is 0.5% to 1.0% to control the pore size and distribution.
또한, 상기 첨가제 분말은 점도와 강도를 높이기 위하여는 Al-30%Cu분말 5-10%와 Al-30%Mg분말 5-15%로 구성되게 하고, 점도와 발포성형성을 높이기 위하여는 Al-10%Si분말 10∼20%와 Al-30%Cu분말 5∼8%로 구성되게 하며, 점도와 경도를 높이기 위하여는 SiC분말 5∼20%와 Al2O3분말을 5∼10% 또는 Al-30%Zn분말을 10∼20%로 구성되게 하는 것이 바람직하다.In addition, the additive powder is composed of 5-10% of Al-30% Cu powder and 5-15% of Al-30% Mg powder to increase viscosity and strength, and Al-10 to increase viscosity and foamability. It is composed of 10-20% of Si powder and 5-8% of Al-30% Cu powder. To increase viscosity and hardness, 5-20% of SiC powder and 5-10% of Al 2 O 3 powder or Al- It is preferable to make 30% Zn powder consist of 10-20%.
또한, 상기단계(S1)에서의 회전자는 내열성과 내열충격성을 높게하기 위하여 Si3N4소재로 하며 그 속도는 25,000∼40,000rpm으로 하고, 용윰금속은 103∼105K/sec로 급속응고 되게 하며, 상기 단계(S4)에서의 열간 압출은 압분체 예열 온도가 360∼410oC, 콘테이너 온도가 370∼450。C 및 금형온도가 380∼450oC로 함이 바람직하다.In addition, the rotor in the step (S1) is made of Si 3 N 4 material in order to increase the heat resistance and thermal shock resistance, the speed is 25,000 ~ 40,000rpm, molten metal is 10 3 ~ 10 5 K / sec rapid solidification In the hot extrusion in the step (S4), the green compact preheating temperature is preferably 360 to 410 ° C., the container temperature is 370 to 450 ° C., and the mold temperature is 380 to 450 ° C.
또한, 상기 폐알미늄 합금 [Al-(4∼8)%Si-(2∼6)%Cu-(4∼7)%Mg-Fe] 분말과 첨가재의 혼합비를 점도와 성형성을 높이기 위하여 (7.5∼10) : (0.1∼2.5)로 하고, 점도, 소성가공성 및 발포성형성을 높이기 위하여는 알미늄 합금 분말, 첨가재 및 발포재의 혼합비율이 (7.5∼10) : (0.1∼2.5) : (0.04∼0.12)이 되게 한다.In addition, in order to increase the viscosity and formability, the mixing ratio of the waste aluminum alloy [Al- (4-8)% Si- (2-6)% Cu- (4-7)% Mg-Fe] powder and the additive material is increased (7.5). To 10): (0.1 to 2.5), and in order to increase the viscosity, plastic workability and foamability, the mixing ratio of the aluminum alloy powder, the additive and the foaming material is (7.5 to 10): (0.1 to 2.5): (0.04 to 0.12). To be
또한, 본 발명은 상기와 같은 방법으로 제조되는 발포용 알미늄 합금 소재를 제공한다.In addition, the present invention provides a foamed aluminum alloy material prepared by the above method.
이하에서는 본 발명을 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail.
먼저, 폐알미늄 및 알미늄합금스크랩을 용융시킨 후 Si가 4∼8%, Cu가 2∼6%, Mg가 4∼7% 포함 되도록 한 후, 고속으로 회전하고 있는 Si3N4소재로 구성된 평판 회전자에 공급하여 저렴하게 발포용 알미늄합금분말을 만든다.First, the waste aluminum and aluminum alloy scraps are melted, and then 4 to 8% of Si, 2 to 6% of Cu, and 4 to 7% of Mg are included, and then a plate made of a Si 3 N 4 material rotating at high speed. Supplying to the rotor makes inexpensive aluminum alloy powder.
상기 발포용 알미늄합금분말에 첨가재분말과 발포재분말을 맷돌분쇄혼합기에 넣어 균일하게 혼합시켜 발포용 혼합분말을 만든 후 금형에 넣어 프레스를 이용하여 고밀도 압분체를 제조한다. 상기 고밀도 압분체를 열간 압출하여 봉상, 판상, 형상(PROFILE) 압출재를 제조하여 발포부품, 샌드위치빔, 또는 샌드위치판을 제조한다.The additive aluminum powder and the foam material powder are put into a millstone grinding mixer to be uniformly mixed to form the foamed powder mixture, and then put into a mold to prepare a high density green compact using a press. The high-density green compact is hot-extruded to produce a rod-like, plate-shaped, profile-shaped extruded material to produce a foamed part, a sandwich beam, or a sandwich plate.
본 발명의 발포용 알미늄합금분말은 폐알미늄 및 알미늄합금 스크랩을 용해시켜 상기와 같은 조성범위가 되도록 한 후 25,000∼40,000rpm으로 회전하고 있는직경40∼70㎜, 두께 2∼4㎜의 평판회전자에 공급하여 직경 80∼700㎛인 발포용 알미늄합금분말을 얻는다.The aluminum alloy powder for foaming according to the present invention is a flat rotor having a diameter of 40 to 70 mm and a thickness of 2 to 4 mm which are rotated at 25,000 to 40,000 rpm after dissolving waste aluminum and aluminum alloy scrap to obtain the composition range as described above. It is supplied to and the foaming aluminum alloy powder of 80-700 micrometers in diameter is obtained.
첨가재분말 (순알미늄분말, Al-30%Cu분말, Al-10%Si분말, Al-30%Mg분말, Al-30%Zn, 분말) 각각의 제조는 폐알미늄을 용해하여 각각 Cu가 30%, Si가 10%, Mg가 30%가 되도록 한 후 상기 원심분무법으로 각각의 분말을 얻는다.Additive powders (pure aluminum powder, Al-30% Cu powder, Al-10% Si powder, Al-30% Mg powder, Al-30% Zn, powder) , Si is 10%, Mg is 30% and each powder is obtained by the centrifugal spraying method.
또한, 압출용 압분체는 직경70∼200㎜인 금형에 혼합분말을 넣고 압분하여 길이 200∼600㎜인 혼합분말압분체를 얻도록 한다. 샌드위치판넬용 압분체는 외피의 두께 1∼2㎜의 알미늄분말과 발포용 혼합분말을 직경 70∼200m, 길이 200∼600㎜되도록 이중구조를 갖는 압분체를 얻도록 한다.In addition, the green compact for extrusion may be mixed with the powder into a mold having a diameter of 70 to 200 mm to obtain a mixed powder compact having a length of 200 to 600 mm. The green compact for sandwich panels obtains a green compact having a double structure such that the aluminum powder having a thickness of 1 to 2 mm and the mixed powder for foaming are 70 to 200 m in diameter and 200 to 600 mm in length.
본 발명의 발포용 알미늄합금 압출재 제조방법은 압분체 예열온도 360∼410℃, 콘테이너 온도 370∼450℃, 금형온도 380∼450℃로 하여 직경 3∼50㎜인 환봉, 두께 3∼30㎜, 폭 30∼600㎜의 판재 및 각종 모양의 형재(profile)를 얻도록 한다.The method for producing the expanded aluminum alloy extruded material of the present invention is a round bar having a diameter of 3 to 50 mm, a thickness of 3 to 30 mm, a width of a green compact preheating temperature of 360 to 410 ° C, a container temperature of 370 to 450 ° C, and a mold temperature of 380 to 450 ° C. Plates of 30 to 600 mm and profiles of various shapes are obtained.
본 발명의 단계(S1)에서는 원심분무장치의 턴디쉬에 용융 알미늄합금을 넣고 상기 턴디쉬의 하부에 설치된 노즐을 통하여 아래방향으로 유출시켜서 상기 노즐 아래쪽에 설치되어 회전하는 평판 회전자의 중심에 떨어지도록 하여 원심력으로 분산시켜서 직경 80∼700㎛의 급속응고 침상 발포용 알미늄합금분말을 제조한다. 급속응고 침상발포용 알미늄합금분말속에는 미세한 불순물(Fe, Mg, Si, Zn, Cu)등이 균일하게 분포하여 발포시 점도를 증가시켜 기공의 크기와 분포를 균일하게 할 뿐만 아니라 발포금속의 강도를 증가시킨다.In the step (S1) of the present invention, the molten aluminum alloy is put into the tundish of the centrifugal spraying device and discharged downward through the nozzle installed at the lower part of the tundish, so as to fall down to the center of the rotating plate rotor installed below the nozzle. Disperse | distribute by centrifugal force, and the aluminum alloy powder for rapid coagulation needle foaming of diameter 80-700 micrometers is manufactured. In the aluminum alloy powder for rapid coagulation, fine impurities (Fe, Mg, Si, Zn, Cu), etc. are uniformly distributed to increase the viscosity during foaming, not only to uniform pore size and distribution, but also to increase the strength of the foamed metal. Increase.
본 발명의 원심분무기는 열적안정성과 내산화성이 우수한 Si3N4소재로 만든직경 40∼70㎜, 두께 2∼4㎜인 평판회전자를 사용하며 출력 0.3∼3마력, 회전수 25,000∼40,000rpm인 공기모터 또는 전기모터로 구성되도록 한다.The centrifugal atomizer of the present invention uses a plate rotor with a diameter of 40 to 70 mm and a thickness of 2 to 4 mm made of Si 3 N 4 material having excellent thermal stability and oxidation resistance. It should be composed of an air motor or an electric motor.
본 발명의 발포용 알미늄합금분말 제조에 사용되는 폐알미늄 또는 알미늄합금scrap에는 불순물로 철(Fe)이 주로 함유되어 있으므로 이 불순물을 이용하여 발포용 알미늄합금의 점도를 높이고 강도를 높이도록 이용한다. 이때 발포용 알미늄합금의 조성은 Si가 4∼8%, Cu가 2∼6%, Mg가 4∼7%함유되도록 하여 발포시에 기공의 크기와 분포를 균일하게 되도록 한다.The waste aluminum or aluminum alloy scrap used in the manufacture of the foamed aluminum alloy powder of the present invention mainly contains iron (Fe) as an impurity, so that the impurity is used to increase the viscosity and strength of the foamed aluminum alloy. At this time, the composition of the aluminum alloy for foaming is 4 to 8% of Si, 2 to 6% of Cu and 4 to 7% of Mg so that the size and distribution of the pores are uniform during foaming.
상기 단계(S2)에서는 상기 급속응고 침상 발포용 알미늄합금분말, 첨가재분말 및 발포재분말을 맷돌분쇄혼합기(stone mill mixer)에 넣어 분말표면 및 내부에 발포재분말이 압입 된 구형 발포용 알미늄합금혼합분말을 제조한다.In the step (S2), the spherical foaming aluminum alloy mixture in which the rapid solidification acicular foam aluminum alloy powder, the additive powder and the foam material powder are put in a stone mill mixer and the foam material powder is pressed into the powder surface and inside. Prepare a powder.
본 발명에 사용되는 맷돌 분쇄혼합기는 열간가공공구강 소재로 만든 상판과 하판으로 구성된것이며, 상판은 5개의 영역으로 구성되며 제1영역은 분말을 넣는 구멍이며, 제 2영역은 분말을 1차 분쇄하는 칼날을 갖고 있고, 제3영역은 분쇄된 분말표면에 발포재분말이 박히도록 평탄부분으로 되어 있고, 제4영역은 2차분쇄를 위한 칼날영역으로 되어 있으며, 제5영역은 구형분말이 만들어 질 수 있도록 평평한 영역으로 구성되어 있다. 하판도 5개영역으로 구성되며 제1영역은 분말을 끌어들여 분배하는 영역으로 스크루형으로 되어 있으며, 제2영역은 공급된 분말을 1차분쇄하는 칼날을 가지고 있으며, 제3영역은 분쇄된 분말이 표면에 발포재분말이 박히도록 평판부분으로 되어 있고, 제4영역은 2차분쇄를 위한 칼날영역으로 되어 있으며 제5영역은 혼합분말이 전단작용으로 구형분말이 되도록 평평한 영역으로 구성한다.Mill mill grinding mixer used in the present invention is composed of a top plate and a bottom plate made of hot working oral material, the top plate is composed of five areas, the first area is a hole for the powder, the second area is the primary grinding powder It has a blade, and the third area is a flat part so that the foam material powder is embedded in the ground powder, the fourth area is a blade area for secondary grinding, and the fifth area is a spherical powder. It is made up of flat areas. The lower plate is also composed of five zones. The first zone is a screw-driven zone for attracting and distributing powder, the second zone has a blade for primary grinding of the supplied powder, and the third zone is for crushed powder. The surface of the foam material is embedded in the flat plate portion, the fourth region is a blade region for secondary grinding, and the fifth region is composed of a flat region so that the mixed powder becomes a spherical powder by shearing action.
상기 맷돌분쇄혼합기는 불활성분위기(N2가스, Ar가스)로 유지하면서 상판과 하판에 냉각수를 공급하면서 150∼900rpm으로 회전시키는 것이 분말표면 및 내부에 발포재분말이 박힌 알미늄합금혼합분말제조에 적합하다.The millstone grinding mixer is rotated at 150 to 900 rpm while supplying cooling water to the upper and lower plates while maintaining the inert atmosphere (N 2 gas, Ar gas), and is suitable for producing aluminum alloy mixture powders having powdered powder and powder embedded therein. Do.
본 발명의 첨가재 분말은 발포용 알미늄합금분말의 점도와 강도를 조절하는 역할을 하는 것으로 순 알미늄분말, Al-10%Si분말, Al-30%Cu분말, Al-30%Mg분말, Al-2%Ni분말, Al-30%Zn분말, Al2O3분말, 또는 SiC분말중 하나 또는 하나 이상의 혼합 분말이 적합히다. 이들 분말을 발포용 알미늄합금분말과 혼합하여 기포의 크기와 분포를 균일하게 하며, 발포 알미늄합금의 강도와 경도를 조절한다.The additive powder of the present invention serves to control the viscosity and strength of the foamed aluminum alloy powder, pure aluminum powder, Al-10% Si powder, Al-30% Cu powder, Al-30% Mg powder, Al-2 Suitable powders are one or more of% Ni powder, Al-30% Zn powder, Al 2 O 3 powder, or SiC powder. These powders are mixed with the expanded aluminum alloy powder to make the size and distribution of the bubbles uniform, and to control the strength and hardness of the expanded aluminum alloy.
본 발명의 발포용 알미늄합금분말에 혼합하는 첨가재 분말의 양은 기포의 크기와 분포를 균일하게 되도록 점도를 높이는 목적으로 사용할 때 5∼15%가 적합하다. 발포알미늄합금의 강도와 경도를 높이고자 할 때는 첨가재 분말의 양이 10∼20%가 적합하다. 정형가공발포 알미늄합금판을 제조할 때는 발포용 알미늄합금에 혼합하는 첨가재 분말로는 점도를 높이고 밀도를 낮추는 5∼10%의 Al-30%Mg분말과 5∼8%의 Al-30%Cu분말이 적합하다. 정형가공발포 알미늄합금주조품을 제조할 때는 주조품의 표면을 치밀하게 하고 주조성이 좋게 하기 위해서 10∼20%의 Al-10%Si분말과 5∼8%의 Al-30%Cu분말이 적합하다.The amount of the additive powder mixed in the expanded aluminum alloy powder of the present invention is preferably 5 to 15% when used for the purpose of increasing the viscosity so that the size and distribution of the bubbles are uniform. In order to increase the strength and hardness of the expanded aluminum alloy, the amount of the additive powder is 10 to 20%. When manufacturing the aluminum alloy sheet with the standard processing foam, the additive powder mixed with the aluminum alloy for foaming is 5 to 10% Al-30% Mg powder and 5 to 8% Al-30% Cu powder to increase the viscosity and lower the density. This is suitable. When manufacturing cast aluminum foam castings, 10 ~ 20% Al-10% Si powder and 5 ~ 8% Al-30% Cu powder are suitable for compacting the cast surface and improving castability.
발포 샌드위치빔 제조용으로는 강도와 에너지흡수성이 높도록 하기위해 발포용 알미늄합금분말에 5∼20%의 SiC분말, 5∼10%의 Al2O3분말, 또는 15∼20%의 Al-30%Zn분말을 혼합하는 것이 적합하다. 발포 샌드위치판 제조용으로 발포용 알미늄합금분말에 5∼10%의 Al-30%Cu분말과 10∼15%의 Al-30%Mg분말을 혼합하는 것이 적합하다.For the production of foamed sandwich beams, 5 to 20% SiC powder, 5 to 10% Al 2 O 3 powder, or 15 to 20% Al-30% in foamed aluminum alloy powder for high strength and energy absorption It is suitable to mix the Zn powder. It is suitable to mix 5-10% Al-30% Cu powder and 10-15% Al-30% Mg powder with foamed aluminum alloy powder for foam sandwich plate manufacture.
본 발명의 발포 알미늄합금을 제조할 때 발포재의 양은 0.5∼1.0%의 TiH2나 ZrH2를 혼합하는 것이 적합하다.In the production of the expanded aluminum alloy of the present invention, the amount of the foamed material is preferably 0.5 to 1.0% of TiH 2 or ZrH 2 mixed.
상기 단계(S3)에서는 상기 발포용 혼합분말을 금형에 넣고 이론 밀도의 60∼90%가 되도록 가압하여 압분체를 제조한다.In the step (S3), the mixed powder for foaming is put into a mold and pressed to be 60 to 90% of the theoretical density to prepare a green compact.
본 발명의 상기 압분체를 제조할 때 발포샌드위치판 제조용으로는 이중압분체를 제조하는 것이 적합하다. 외피는 알미늄분말을 사용하여 2∼4㎜두께를 갖는 지름 70∼200㎜, 높이 200∼600㎜인 2중 압분체를 얻도록 한다.When producing the green compact of the present invention, it is suitable to prepare a double green compact for producing a foamed sandwich plate. The outer shell is made of aluminum powder to obtain a double green compact having a diameter of 70 to 200 mm and a height of 200 to 600 mm having a thickness of 2 to 4 mm.
발포샌드위치빔용이나 일반부품제조용으로는 지름 70∼200㎜, 높이 200∼600㎜인 단일 압분체를 얻는 것이 적합하다.It is suitable to obtain a single green compact having a diameter of 70 to 200 mm and a height of 200 to 600 mm for foamed sandwich beams or for manufacturing general parts.
상기 단계(S4)에서는 상기 단일 압분체와 2중압분체를 360∼410℃로 예열하여 콘테이너 온도 370∼450℃, 금형온도 380∼450℃로 한 후 20∼300㎜/s의 압출속도로 직경 3∼5㎜인 환봉이나 두께 3∼30㎜, 폭 30∼600㎜인 판재를 얻도록하며, 2중압분체는 두께 3∼30㎜, 폭 30∼600㎜의 2중 판재를 얻도록 하여 압접(cladding)소재와 알미늄간에 부착력이 좋도록 제조한다.In the step S4, the single green compact and the double green compact are preheated to 360 to 410 ° C. to a container temperature of 370 to 450 ° C. and a mold temperature of 380 to 450 ° C., followed by a diameter of 3 at an extrusion rate of 20 to 300 mm / s. A round bar having a thickness of 5 mm or a sheet having a thickness of 3-30 mm and a width of 30-600 mm is obtained, and the double press powder is obtained by obtaining a double sheet having a thickness of 3-30 mm and a width of 30-600 mm. ) Produce good adhesion between material and aluminum.
본 발명으로 제조되는 발포용 알미늄 합금 분말은 발포 알미늄 합금 부품,발포 알미늄 합금판, 발포 알미늄 샌드위치 판넬 및 발포 알미늄 샌드위치빔 등의 제조에 용이하게 사용할 수 있는 알미늄 합금 소재로 이용될 수 있고, 본 발명에서는 폐알미늄이나 알미늄 합금 스크랩을 사용함으로써 폐자원의 재활용에도 용이하며, 제조 공정이 간단하여 우수한 기계적, 열적, 음향성질 뿐 아니라 에너지 흡수성 등을 모두 갖춘 다기능 발포용 알미늄 합금 소재를 저렴한 비용으로 제조할 수 있다. 또한 첨가재 분말을 사용함으로써 점도, 성형성 및 강도 조절이 용이하고 발포성형성도 높일수 있는 효과가 있다.Foamed aluminum alloy powder prepared by the present invention can be used as an aluminum alloy material that can be easily used in the production of foamed aluminum alloy parts, foamed aluminum alloy plate, foamed aluminum sandwich panel and foamed aluminum sandwich beam, the present invention Easily recycle waste resources by using waste aluminum or aluminum alloy scrap, and the manufacturing process is simple, so that multifunctional foamed aluminum alloy material with excellent mechanical, thermal and acoustic properties as well as energy absorption can be manufactured at low cost. Can be. In addition, by using the additive powder, it is easy to control the viscosity, formability and strength, and there is an effect of increasing the foamability.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010039373A KR100741515B1 (en) | 2001-07-03 | 2001-07-03 | An Al alloy materal for foaming by waste Al and Al alloy chip scrap, and a method of thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010039373A KR100741515B1 (en) | 2001-07-03 | 2001-07-03 | An Al alloy materal for foaming by waste Al and Al alloy chip scrap, and a method of thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20030003804A true KR20030003804A (en) | 2003-01-14 |
| KR100741515B1 KR100741515B1 (en) | 2007-07-20 |
Family
ID=27713095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020010039373A KR100741515B1 (en) | 2001-07-03 | 2001-07-03 | An Al alloy materal for foaming by waste Al and Al alloy chip scrap, and a method of thereof |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100741515B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010099475A (en) * | 2001-10-05 | 2001-11-09 | 이효진 | The Structure of Multi-functional Guard Rail |
| KR101111286B1 (en) * | 2008-08-22 | 2012-03-14 | 한국생산기술연구원 | manufacturing method of foaming metal using a foam body |
| CN102909210A (en) * | 2011-08-05 | 2013-02-06 | 上海勃来特商贸有限公司 | Process based on hot extrusion cold press technology for recycling waste composite aluminum foil material |
| CN109207757A (en) * | 2018-09-19 | 2019-01-15 | 北京科技大学 | A kind of abandoned car gives up the method that miscellaneous aluminium recycles |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102001397B1 (en) * | 2017-04-12 | 2019-07-18 | 유한회사 원진알미늄 | Manufacturing Method of Aluminum-Silicon Carbide Using By-product of Cutting Process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6047322B2 (en) * | 1978-08-10 | 1985-10-21 | 日本ダイアクレバイト株式会社 | Manufacturing method of porous sintered body |
| JPH0699771B2 (en) * | 1986-02-14 | 1994-12-07 | 本田技研工業株式会社 | Aluminum alloy porous member and method for manufacturing the same |
| KR950003574B1 (en) * | 1991-10-10 | 1995-04-14 | 조성석 | Aluminium powder prepared from scrap aluminium and multi-layer, porous material and process |
| KR100216483B1 (en) * | 1995-05-17 | 1999-08-16 | 박희수 | Method for manufacturing porosity metal |
| JPH1046209A (en) * | 1996-07-25 | 1998-02-17 | Ndc Co Ltd | Production of porous aluminum green compact |
-
2001
- 2001-07-03 KR KR1020010039373A patent/KR100741515B1/en active IP Right Grant
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010099475A (en) * | 2001-10-05 | 2001-11-09 | 이효진 | The Structure of Multi-functional Guard Rail |
| KR101111286B1 (en) * | 2008-08-22 | 2012-03-14 | 한국생산기술연구원 | manufacturing method of foaming metal using a foam body |
| CN102909210A (en) * | 2011-08-05 | 2013-02-06 | 上海勃来特商贸有限公司 | Process based on hot extrusion cold press technology for recycling waste composite aluminum foil material |
| CN102909210B (en) * | 2011-08-05 | 2015-06-17 | 上海勃来特商贸有限公司 | Process based on hot extrusion cold press technology for recycling waste composite aluminum foil material |
| CN109207757A (en) * | 2018-09-19 | 2019-01-15 | 北京科技大学 | A kind of abandoned car gives up the method that miscellaneous aluminium recycles |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100741515B1 (en) | 2007-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7105127B2 (en) | Method for production of metal foam or metal-composite bodies with improved impact, thermal and sound absorption properties | |
| CN106041760B (en) | A kind of self-sharpening diamond grinding wheel and preparation method thereof | |
| CN104550972B (en) | Preparation method of special-shaped aluminum foam irregular parts | |
| CN102021357B (en) | Method for preparing particle-enhanced metal matrix composite | |
| US6332907B1 (en) | Alloy for producing metal foamed bodies using a powder with nucleating additives | |
| US4617979A (en) | Method for manufacture of cast articles of fiber-reinforced aluminum composite | |
| CA2454169C (en) | A method for production of porous semiproducts from aluminum alloy powders | |
| KR20030003804A (en) | An Al alloy materal for foaming by waste Al and Al alloy scrap, and a method of thereof | |
| RU2335379C1 (en) | Method of porous materials production from aluminium alloys | |
| CN102618744B (en) | Preparation method for clean foam magnesium in bionic field | |
| CN108149160A (en) | A kind of high impact toughness foamed aluminium and its production technology based on A356 aluminium alloys | |
| CN106424743A (en) | Production method for high-strength and high-modulus additive manufacturing materials | |
| CN204584235U (en) | A kind of foam metal material layering casting-global formation equipment | |
| CN104772448B (en) | A kind of foam metal material layering casting global formation device and method | |
| CN109266882A (en) | Aluminium alloy titanium additives | |
| CN110129608B (en) | SiC particle reinforced AZ91 magnesium-based composite material, preparation method and application thereof, and radiator shell | |
| CN101287564A (en) | Tungsten shot | |
| CN102417999A (en) | Method for preparing magnesium alloy | |
| CN116475411B (en) | High-strength high-toughness low-oxygen component and preparation method thereof | |
| JPS6140724B2 (en) | ||
| US20230250512A1 (en) | Aluminium material and process for producing an aluminium material | |
| CN106392087A (en) | Preparation method of high-strength 3D printing metal material | |
| JPH01127608A (en) | Manufacture of aluminum based alloy rapidly cooled solidified powder | |
| CN116765394A (en) | Method for preparing tough FeMnAlC alloy by injection molding | |
| RU2450892C1 (en) | Method of producing porous materials (articles) based on aluminium foam from aluminium alloys |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| N231 | Notification of change of applicant | ||
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| G170 | Publication of correction | ||
| FPAY | Annual fee payment |
Payment date: 20130626 Year of fee payment: 7 |
|
| FPAY | Annual fee payment |
Payment date: 20140701 Year of fee payment: 8 |
|
| FPAY | Annual fee payment |
Payment date: 20150713 Year of fee payment: 9 |
|
| FPAY | Annual fee payment |
Payment date: 20160713 Year of fee payment: 10 |
|
| FPAY | Annual fee payment |
Payment date: 20190715 Year of fee payment: 13 |