KALTGEWALZTES UND REKRISTALLISIEREND GEGLÜHTES STAHLFLACHPRODUKT UND VERFAHREN ZU SEINER HERSTELLUNG
    3.
    发明公开
    KALTGEWALZTES UND REKRISTALLISIEREND GEGLÜHTES STAHLFLACHPRODUKT UND VERFAHREN ZU SEINER HERSTELLUNG 审中-公开
    KALTGEWALZTES UND REKRISTALLISIERENDGEGLÜHTESSTAHLFLACHPRODUKT UND VERFAHREN ZU SEINER HERSTELLUNG

    公开(公告)号:EP3204530A1

    公开(公告)日:2017-08-16

    申请号:EP15762569.0

    申请日:2015-09-09

    摘要: The invention relates to a cold-rolled and recrystallisation annealed flat steel product with a ferritic micro-structure, having an optimised formability and suitability for painting. In addition, the flat steel product is formed by a steel having C: 0.0001-0.003 wt.%, Si: 0.001-0.025 wt.%, Mn: 0.05-0.20 wt.%, P: 0.001-0.015 wt.%, Al: 0.02-0.055 wt.%, Ti: 0.01-0.1 wt.%, as well as respectively optionally Cr: 0.001-0.05 wt.%, V: up to 0.005 wt.%, Mo: up to 0.015 wt.%, N: 0.001-0.004 wt.%. In addition, the flat steel product has the following mechanical characteristics: Rp0.2 ≤ 180 MPa, Rm ≤ 340 MPa, A80 ≤ 40%, n-value ≤ 0.23. Furthermore, on at least one of the surfaces thereof, the flat steel product has an arithmetic roughness average Ra of 0.8-1.6 µm and a peak value RPc of 75/cm. The production of the flat steel product involves, in a continuous process in a N2-H2- annealing atmosphere, the recrystallisation annealing thereof, and an overaging process. Subsequently, the flat steel product undergoes a skin-pass rolling by means of a working roller and with a skin-pass rate D of 0.4-0.7%, the circumferential surface of which working roller has a roughness average Ra of 1.0-2.5 µm and a peak value RPc ≥ 100/cm, wherein the peaks and depressions shaped into the surface of the skin-pass working roller are provided in a stochastically distributed manner.

    摘要翻译: 本发明涉及具有铁素体微观结构的冷轧和再结晶退火扁钢产品,其具有优化的可成形性和适用于涂装。 此外,扁钢产品由C:0.0001-0.003重量%,Si:0.001-0.025重量%,Mn:0.05-0.20重量%,P:0.001-0.015重量%,Al :0.02-0.055重量%,Ti:0.01-0.1重量%,以及分别任选地Cr:0.001-0.05重量%,V:最多0.005重量%,Mo:最多0.015重量%,N :0.001-0.004重量%。 另外,扁钢产品具有以下机械特性:Rp0.2≤180MPa,Rm≤340MPa,A80≤40%,n值≤0.23。 此外,扁钢产品的至少一个表面上的算术粗糙度平均值Ra为0.8-1.6μm,峰值RPc为75 / cm。 扁钢产品的生产涉及在N 2 -H 2 - 退火气氛中的连续过程中,其重结晶退火以及过时效过程。 随后,扁平钢产品通过工作辊进行平整轧制,并且平整度D为0.4-0.7%,其工作辊的圆周表面具有1.0-2.5μm的粗糙度平均值Ra和 峰值RPc≥100/ cm,其中形成在平整工作辊表面的峰和凹陷以随机分布方式设置。

    VORRICHTUNG ZUR BERÜHRUNGSLOSEN WALZENREINIGUNG UND VERFAHREN HIERFÜR
    4.
    发明公开
    VORRICHTUNG ZUR BERÜHRUNGSLOSEN WALZENREINIGUNG UND VERFAHREN HIERFÜR 有权
    VORRICHTUNG ZURBERÜHRUNGSLOSENWALZENREINIGUNG UND VERFAHRENHIERFÜR

    公开(公告)号:EP3122480A1

    公开(公告)日:2017-02-01

    申请号:EP15711747.4

    申请日:2015-03-23

    IPC分类号: B21B28/04 B08B5/02 B08B15/02

    摘要: The invention relates to a device for cleaning a roller (1) of a system for machining a strip-type material, comprising at least one jet nozzle (5), which directs a fluid stream onto the surface (2) of the roller (1), and at least one suction channel (8). The at least one jet nozzle (5) and the at least one suction channel (8) are arranged in a hood (4), and the hood (4) covers part of the circumference of the roller (1). The at least one jet nozzle (5) is arranged at an angle of +/- 45° relative to the vertical on the surface (2) of the roller (1) and at a distance of less than 50 mm from the surface (2) of the roller (1).

    摘要翻译: 用于清洁用于处理带状材料的系统的辊的装置和方法可以包括除了将气流引导到辊的表面上的喷嘴之外的吸入管道。 喷嘴和吸入管道可以设置在覆盖辊的圆周的一部分的罩中。 此外,喷嘴可以相对于从辊的表面垂直延伸的法线以±45度的范围设置。 此外,喷嘴可以与辊的表面间隔开小于50mm。