公开(公告)号：US20240265302A1

公开(公告)日：2024-08-08

申请号：US18293067

申请日：2022-07-13

Applicant: Primetals Technologies Austria GmbH

Inventor： Du NGUYEN DUY ,  Katharina FREINSCHLAG ,  Sergey BRAGIN ,  Klaus JAX ,  Axel RIMNAC ,  Alfred SEYR ,  Sonja STRASSER

IPC: G06N20/00 ,  B21B37/00

CPC classification number: G06N20/00 ,  B21B37/00 ,  G06F30/27

Abstract: A method for determining mechanical properties of a first rolled material by a hybrid model that includes production datasets relating to further rolled materials, a physical production model and a statistical data model. The production dataset relating to the first rolled material is used to determine a first mechanical dataset, a further production dataset and a metallurgical dataset and also a second mechanical dataset. An averaged normalized distance value for production datasets relating to the further rolled materials is determined that is used to ascertain the mechanical properties of the rolled material as a weighted average from the first and second mechanical datasets. When creating the hybrid model, the physical production model is used to determine further production datasets relating to the further rolled goods for training the statistical data model.

公开(公告)号：US20160076119A1

公开(公告)日：2016-03-17

申请号：US14888821

申请日：2014-04-04

Applicant: PRIMETALS TECHNOLOGIES AUSTRIA GMBH

Inventor： Bernd LINZER ,  Axel RIMNAC ,  Rainer BURGER ,  Robert LINSBOD ,  Josef MIKOTA

IPC: C21D11/00 ,  C21D8/02 ,  C21D9/54

CPC classification number: C21D11/00 ,  C21D1/54 ,  C21D8/0205 ,  C21D8/0226 ,  C21D9/54 ,  C21D9/56 ,  C21D9/562 ,  C21D11/005 ,  C21D2211/001 ,  C21D2211/005

Abstract: A method for determining the ferrite phase fraction xa after heating or when cooling a steel strip (2) in a metallurgic system. Also, a device for carrying out the method. A method by which the ferrite phase fraction in the steel strip (2) can be determined online, quickly and easily, includes measuring a width w1 and a temperature T1 of the steel strip (2), wherein the steel strip (2) comprises a ferrite phase fraction xa1 during the measurements; heating or cooling the steel strip (2); when heating the steel strip (2) a phase conversion at least in part occurs, a→y from the ferrite state a into the austenitic state y and when cooling the steel strip a phase conversion at least in part occurs, from the austenitic state y into the ferrite state a; measuring of a width w and a temperature T of steel strip (2) converted at least in part; determining the ferrite phase fraction of the formula (I), wherein T0 is a reference temperature and aa and ay are the linear heat expansion coefficients of ferrite and austenite.

Abstract translation: 用于确定在加热之后或当在冶金系统中冷却钢带（2）时的铁素体相分数xa的方法。 另外，用于执行该方法的装置。 可以在线，快速且容易地确定钢带（2）中的铁素体相分数的方法包括测量钢带（2）的宽度w1和温度T1，其中钢带（2）包括 铁素体相分数xa1; 加热或冷却钢带（2）; 在加热钢带（2）时至少部分发生相变，a→y从铁素体状态a变为奥氏体状态y，当钢带冷却至少部分发生相变时，从奥氏体态y 进入铁素体状态a; 测量至少部分转化的钢带（2）的宽度w和温度T. 确定式（I）的铁素体相分数，其中T0是参考温度，aa和ay是铁素体和奥氏体的线性热膨胀系数。

公开(公告)号：US20240327944A1

公开(公告)日：2024-10-03

申请号：US18411282

申请日：2024-01-12

Applicant: Primetals Technologies Austria GmbH

Inventor： Kerstin BAUMGARTNER ,  Simon GROSSEIBER ,  Axel RIMNAC ,  Gero SCHWARZ

IPC: C21D9/52 ,  B21B1/26 ,  B22D11/00 ,  B22D11/14 ,  C21D1/18 ,  C21D6/00 ,  C21D8/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

CPC classification number: C21D9/52 ,  B21B1/26 ,  B22D11/001 ,  B22D11/141 ,  C21D1/18 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0221 ,  C21D8/0247 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005

Abstract: A process for production of a TRIP steel strip that includes



supplying a finished strip to a first cooling group of a cooling sector to force-cool the core of the finished strip to a second exit temperature (TA2) in the range 620° C. to 700° C., whereby, upon exiting the first cooling group, the core has a predominantly austenitic microstructure, transporting the finished strip to a third cooling group establishing, during the transport, a second cooling rate of the core of the finished strip in the range −25 K/s to 20 K/s to convert a first portion of the austenitic microstructure into a ferritic microstructure, force-cooling the core of the finished strip in the third cooling group to a third exit temperature (TA3) which is not more than the bainite starting temperature (BS) to at least partially convert a second portion of the austenite into a bainitic microstructure.

公开(公告)号：US20170209907A1

公开(公告)日：2017-07-27

申请号：US15328324

申请日：2015-07-09

Applicant: Primetals Technologies Austria GmbH

Inventor： Manfred KUEGEL ,  Axel RIMNAC ,  Alois SEILINGER

IPC: B21B37/74 ,  B21B45/02 ,  B21B1/26

CPC classification number: B21B37/74 ,  B21B1/26 ,  B21B45/0218 ,  B21B2015/0014 ,  B21B2261/21

Abstract: A rolling mill with a cooling zone for cooling and scissors for cross-cutting metal strips, which are preferably made of steel. A method and a device enables metal strips with thicknesses >4 mm and/or metal strips made of high-strength materials to be cross-cut by means of scissors arranged after a production line and a cooling zone. In the method, the metal strip (6) is cooled in the cooling zone (10) to a specified temperature profile in the longitudinal direction of the metal strip (6) such that the metal strip (6) has a higher temperature in the region of the strip head of the trailing metal strip portion (31) and the strip base of the leading metal strip portion (32) than in the upstream and downstream regions.