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1. 发明专利

BE1029394A1 Un procédé de réduction de la taille des inclusions de type B dans l'acier désoxydé à l'aluminium 未知
公开(公告)号：BE1029394A1
公开(公告)日：2022-12-05
申请号：BE202205750
申请日：2022-09-20
申请人： UNIV NORTH CHINA TECHNOLOGY , HANDAN IRON AND STEEL GROUP CO LTD , UNIV BEIJING SCIENCE & TECHNOLOGY , UNIV YANSHAN
发明人： DENG JIANJUN , YANG WEN , CHENG DI , ZHU TANHUA , CHEN WEI , REN YING , LI YAOQIANG , REN QIANG , LI YAQIONG , LI TAIQUAN , CHEN ZIGANG , ZHANG LIFENG
IPC分类号： C21C7/06
摘要： L'invention appartient au domaine de la métallurgie sidérurgique et de la sidérurgie, et concerne en particulier un procédé de réduction de taille d'inclusions de type B dans de l'acier désoxydé à l'aluminium. L'acier fondu est d'abord désoxydé par l'aluminium, puis les inclusions sont soumises à un soufflage doux et à une agitation pour favoriser le flottage et l'élimination des inclusions d'alumine de grande taille et réduire la taille des inclusions. Ensuite, grâce à un traitement au calcium ou à l'ajout de ferrosilicium contenant du calcium combiné à des méthodes de refroidissement et de chauffage contrôlés, les inclusions pendant la coulée continue et le traitement thermique sont favorisées pour se transformer en inclusions composites avec une couche externe de CaS de dureté plus élevée et un noyau Al2O3‑MgO, réduisant la taille des les inclusions, notamment de type B.

2. 发明专利

ZA202211206B DEVICE FOR REALIZING A REAL-TIME OBSERVATION OF A HYDRATION PROCESS OF CEMENT-BASED MATERIALS BY A LOW-FIELD NUCLEAR MAGNETIC RESONANCE METHOD 未知
公开(公告)号：ZA202211206B
公开(公告)日：2022-10-26
申请号：ZA202211206
申请日：2022-10-13
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： TAN YUYE , FU JIANXIN , SONG WEIDONG , WANG JIE , LI YANG , CAO SHUAI

3. 发明专利

ZA202207251B PREPARATION METHOD AND APPLICATION OF CEMENTING MATERIAL CONTAINING WASTE INCINERATION FLY ASH AND SLAG CEMENT 未知
公开(公告)号：ZA202207251B
公开(公告)日：2022-10-26
申请号：ZA202207251
申请日：2022-06-30
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY , CHINESE ACADEMY OF ENV PLANNING
发明人： ZHANG SIQI , LIU XIAOMING , ZOU QUAN , XU RUNSHENG , LI YUE , XUE YANG , LI JIA , DONG KAI , NI WEN , ZHU RONG

4. 发明专利

LU502697B1 INTELLIGENT PREDICTION METHOD AND SYSTEM FOR GROUND PRESSURE DISASTERS OF WALL ROCK AFFECTED BY MINING 未知
公开(公告)号：LU502697B1
公开(公告)日：2022-10-14
申请号：LU502697
申请日：2020-04-23
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： LV XIANG FENG
IPC分类号： G06N20/00 , E21F17/00 , E21F17/18 , G06F30/27 , G06F119/14
摘要： Provided are an intelligent prediction method and system for ground pressure disasters of wall rock (1) affected by mining, relating to the technical field of the prediction and prevention of ground pressure disasters due to deep mining. The method comprises the following steps: S1: providing a sensor in wall rock (1) affected by mining in order to acquire wall rock data; S2: constructing a stress-strain curve by using the acquired wall rock data, and extracting data before a wall rock stress reaches a stress limit to serve as pre-peak data, and data after the wall rock stress reaches the stress limit to serve as post-peak data; S3: substituting consecutive pre-peak data or post-peak data, within a period of time, into a machine learning model to perform impending disaster warning, so as to obtain a preliminary prediction result; S4: evaluating the preliminary prediction result on the basis of a wall rock instability theory and external environment information to obtain an evaluation result; and S5: completing final disaster decision-making according to the evaluation result. In this way, the preliminary prediction for ground pressure disasters can be completed by means of machine learning model, and the prediction result is verified according to a certain standard and model, such that both excellent accuracy and practicability are provided.

5. 发明专利

ZA202205883B STEEL SLAG AGGREGATE LOW-CARBON ROAD CONCRETE BY USING INDUSTRIAL BY-PRODUCT GYPSUM AND COAL FLY ASH AND PREPARATION METHOD THEREOF 未知
公开(公告)号：ZA202205883B
公开(公告)日：2022-09-28
申请号：ZA202205883
申请日：2022-05-27
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： MU XINLI , YU YANG , LEI BOLAN , BA HAOJING , ZHANG SIQI , NI WEN

6. 发明专利

ZA202205368B LOW-CARBON ROAD CONCRETE AND ITS PREPARATION METHOD USING COAL-TO-LIQUID SLAG, DESULFURIZED GYPSUM AND STEEL SLAG IN COOPERATION 未知
公开(公告)号：ZA202205368B
公开(公告)日：2022-09-28
申请号：ZA202205368
申请日：2022-05-16
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： MU XINLI , YU YANG , LEI BOLAN , BA HAOJING , ZHANG SIQI , NI WEN

7. 发明专利

ZA202105864B PREPARATION METHOD AND APPLICATION OF RARE EARTH ELEMENT FOR PREPARING IMITATION GEM COLOR-CHANGE GLASS 未知
公开(公告)号：ZA202105864B
公开(公告)日：2021-10-27
申请号：ZA202105864
申请日：2021-08-17
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： ZHANG SIQI , PU JUNYUAN , LI KEQING , LI HAO , ZHANG MINGGEN , NI WEN

8. 发明专利

LU102791B1 High-quality Spring Steel and Refining Method Thereof 未知
公开(公告)号：LU102791B1
公开(公告)日：2021-10-26
申请号：LU102791
申请日：2021-04-26
申请人： XIANGTAN IRON & STEEL CO LTD OF HUNAN VALIN , UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： ZHOU WENHAO , XIAO DONG , CHI YUNGUANG , CHEN JUN , WANG CHEN , LIU QING
IPC分类号： C21C7/064 , C21C7/06 , C21C7/10
摘要： The present invention provides high-quality spring steel and a refining method thereof, relating to the technical field of ferrous metallurgy. In the method of the present invention, high-purity silicon and metal manganese are used for deoxidization, refining slag with a basicity of 1.5-2.5 is used for desulfurization in a LF refining process, and refining slag with a basicity of 0.8-1.0 and an Al2O3 content of less than 6% is used for liquid steel refining in a VD refining process, so that the S content in liquid steel can be well reduced and the Als content in the steel is controlled to be less than 0.0020%, thereby improving the inclusions in the spring steel and further improving the fatigue resistance.

9. 发明专利

LU102759B1 METHOD FOR IMPROVING CENTER SEGREGATION AND SURFACE CRACK OF CONTINUOUS CASTING MEDIUM-THICK SLAB OF PERITECTIC STEEL 未知
公开(公告)号：LU102759B1
公开(公告)日：2021-10-07
申请号：LU102759
申请日：2021-04-07
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： LIU QING , HAN YANSHEN , ZHANG JIANGSHAN
IPC分类号： B22D11/22
摘要： The present invention provides a method for improving center segregation and surface crack of continuous casting medium-thick slab of peritectic steel, and relates to the technical field of quality control of continuous casting slab. By reducing the cooling intensity at the earlier stage of solidification and enhancing the cooling intensity at the final stage of solidification, the center segregation and the surface crack of the continuous casting medium-thick slab of peritectic steel are improved. The method comprises the following contents: the cooling water amount of the wide face of the mould is 3400-3600 L/min, and the cooling water amount of the narrow face of the mould is 480-530 L/min; the cooling water amount of the wide face of the foot roller section is 239-298 L/min, and the cooling water amount of the narrow face of the foot roller section is 61-65 L/min; and the total cooling water amount of the sector segment is 1517-2166 L/min, wherein the total cooling water amount of the first section to the fourth section is 840-1101 L/min, and the total cooling water amount of the fifth section to the eighth section is 633-1001 L/min. The technical solution provided by the present invention is suitable for the casting process of the continuous casting medium-thick slab.

10. 发明专利

AU2021102081A4 Method and System for Early Warning the Quality and Safety of Cross-border Renewable Resources 未知
公开(公告)号：AU2021102081A4
公开(公告)日：2021-06-03
申请号：AU2021102081
申请日：2021-04-20
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： HUANG GUOZHONG , ZHANG MENGRU , OU SHENGNAN , XIE JIAYING , ZHANG DINGLI
IPC分类号： G06Q10/06 , G06Q50/26
摘要： The invention relates to the field of early warning, in particular to a method and a system for early warning the quality and safety of cross-border renewable resources. The method comprises collection of risk information of cross-border renewable resources, which includes basic factors and additional factors; preliminary judgement on the risk grade of the basic factors and additional factors respectively, wherein the risk grade of the basic factors is obtained by adopting the maximum principle and the risk grade of the additional factors is obtained through the membership principle. Specifically, the risk grade contains low grade, medium grade and high grade; if the risk grade is high, quality and safety early warning will be issued for cross border renewable resources. According to the method, the collected risk information is preliminarily evaluated, and the early warning is directly issued for high grade risk. Besides, secondary comprehensive early warning evaluation is carried out for medium and low risk grade which cannot be clearly defined. The multi-stage early warning process can effectively improve the early warning efficiency and facilitate the early warning work. There are problems a n Lack of quamntin o e Lack of relevant with raw materials. supervision policy standards Radioactivity,i Appearance, sensory, toxic substances, polymer, ash, etc. inclusions, microorganisms,e r risk Me gger FAccumulatiofon N Issue early warning y Possible exposure to the human body/environent in time. environmentiuman body Exceeding the y environmental/u Lead to risk tolerance threshold Figure 3 A risk mechanism diagram of one embodiment of the early warning method for the quality and safety of cross-border renewable resources according to the present invention. InputProcessor MemoryOutput device Figure 4 A frame diagram of one embodiment of the early warning system for the quality and safety of cross-border renewable resources according to the present invention.

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