Method and device for manufacturing profiled metal strips
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B21B-027/00
B21B-013/04
B21B-001/22
B21B-039/02
B21D-013/04
B21D-013/10
출원번호
US-0653215
(2013-12-19)
등록번호
US-10058905
(2018-08-28)
우선권정보
DE-10 2012 024 808 (2012-12-19)
국제출원번호
PCT/EP2013/077359
(2013-12-19)
국제공개번호
WO2014/096180
(2014-06-26)
발명자
/ 주소
Krautschick, Jochen
Teipel, Jörn
Wiemer, Dirk
출원인 / 주소
Outokumpu Nirosta GmbH
대리인 / 주소
Chernoff Vilhauer LLP
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
The invention relates to a method for manufacturing profiled metal strips (1, 1′), in which a metal strip (1, 1′) with predefinable material thickness consisting, in particular, of stainless steel is wound up on a coil (4) and guided through a rolling stand (W1-W4) containing several rolls (2, 3, 2′
The invention relates to a method for manufacturing profiled metal strips (1, 1′), in which a metal strip (1, 1′) with predefinable material thickness consisting, in particular, of stainless steel is wound up on a coil (4) and guided through a rolling stand (W1-W4) containing several rolls (2, 3, 2′, 3′), wherein at least the rolls (2, 3) that effectively interact with the metal strip (1, 1′) are provided with a predefinable topography (8, 9), by means of which profiles with profile depths 250 μm can be produced on both sides of the metal strip (1, 1′) depending on the geometry of the topography (8, 9) of the rolls (2, 3), and wherein the metal strip (1, 1′) is subsequent to its profiling wound up on a coil (5) and, if so required, subjected to a thermal post-treatment.
대표청구항▼
1. A method for manufacturing profiled metal strips and maximizing profile depth, characterized in that a metal strip with predefinable original material thickness consisting of stainless steel is wound up on a coil and guided through a rolling stand containing several rolls, wherein at least the ro
1. A method for manufacturing profiled metal strips and maximizing profile depth, characterized in that a metal strip with predefinable original material thickness consisting of stainless steel is wound up on a coil and guided through a rolling stand containing several rolls, wherein at least the rolls that effectively interact with the metal strip are provided with a predefinable positive and negative topography, which at least partly engage into one another, and by means of which profiles with profile depths >250 μm for wave profiles or nub profiles can be produced on both sides of the metal strip depending on the geometry of the topography of the rolls, and the thickness of the metal strip to be rolled is adjusted with the rolling force, the profiles forming wave or nub profiles, the profiles having a wavelength and an amplitude, and having crests with radii, such that the radii is greater than 0.4× the original material thickness of the metal strip, and wherein the amplitude is equal to or less than 0.6× the wavelength. 2. The method according to claim 1, characterized in that nub structures or wave structures with profile depths >250 μm are produced in the metal strip being unwound from the coil. 3. The method according to claim 1, characterized in that rolling stands with at least 4 rolls are used for profiling the metal strip. 4. The method according to claim 1, characterized in that at least one of the following marginal conditions is fulfilled in order to achieve the maximum material-dependent profile depth for wave profiles or nub profiles: 1. The wavelength of the topography profile is greater than 3× original sheet metal thickness;2. The angle in the flank of the topography profile parallel to the rolling direction is greater than 30° ;3.The amplitude or the thickness of the profiled sheet metal to be rolled are adjusted with the rolling force. 5. The method according to claim 1, characterized in that a material of the type 1.4301 is used in a metal strip consisting of stainless steel, wherein the maximum thickness reduction of this material during the course of the rolling operation amounts up to 45%. 6. The method according to claim 1, characterized in that positive and negative surface topographies are produced on the rolls that effectively interact with the metal strip without impairing the flow of the metal strip material, such that impression depths >1000 μm can be realized at a predefinable rolling force.
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이 특허에 인용된 특허 (6)
Yamamoto Michiyasu (Chiryu JPX) Fukuoka Mikio (Bisai JPX), Corrugated fin type heat exchanger.
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