Patents Assigned to Hebei University of Technology
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Patent number: 12116319Abstract: The disclosure provides an ultralow-carbon clinker-free cement, prepared from the following raw materials: granulated blast-furnace slag, gypsum and calcium oxide-based materials. The granulated blast-furnace slag accounts for 65%-95% of the total weight of the raw materials, the gypsum accounts for 4.5%-34.5% of the total weight of the raw materials, and the balance is the calcium oxide-based material. A weight percentage of calcium oxide and/or calcium hydroxide in the total weight of the raw materials is controlled to be 0.05%-0.75%. The disclosure further provides a method for preparing the ultralow-carbon clinker-free cement and application of the ultralow-carbon clinker-free cement in the preparation of concrete, mortar or cement products. The ultralow-carbon clinker-free cement of the disclosure has the advantages of high early strength, ultrahigh long-term strength, low shrinkage, carbonation resistance, low carbon emissions, etc.Type: GrantFiled: September 16, 2022Date of Patent: October 15, 2024Assignee: HEBEI UNIVERSITY OF TECHNOLOGYInventors: Jian Zhou, Mingfeng Xu
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Patent number: 12111225Abstract: An accelerated life test method for a speed reducer of an industrial robot is provided. The accelerated life test method includes: setting first load stress higher than rated load stress and second load stress lower than the rated load stress; performing an accelerated life test by loading the first load stress to first speed reducer samples; calculating a service life of each of the first speed samples in the accelerated life test; performing a contrast test by loading the second load stress to second speed reducer samples; calculating a service life of each of the second speed samples in the contrast test; and calculating an acceleration coefficient, and the acceleration coefficient is equal to a ratio of the service life in the accelerated life test to the service life in the contrast test.Type: GrantFiled: July 19, 2022Date of Patent: October 8, 2024Assignee: Hebei University of TechnologyInventors: Xu Han, Shuyong Duan, Xin Gao, Yourui Tao, Nan Ye, Jia Wang
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Patent number: 11969717Abstract: The present disclosure provides a method for preparing an organophosphorus degrading enzyme based multifunctional catalyst and an organophosphorus degrading enzyme based multifunctional catalyst and use thereof. In the present disclosure, the preparation method includes: directly adding a composite yolk-shell-structured nanomaterial into a crude enzyme solution of organophosphorus degrading enzyme with an affinity tag, and mixing, to obtain a mixture, and then subjecting the mixture to a separation, to obtain an organophosphorus degrading enzyme based multifunctional catalyst.Type: GrantFiled: May 11, 2021Date of Patent: April 30, 2024Assignee: Hebei University of TechnologyInventors: Yanjun Jiang, Liya Zhou, Saiguang Xue, Jing Gao
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Patent number: 11881014Abstract: The present invention discloses an intelligent image sensing device for sensing-computing-cloud integration based on a federated learning framework. The device comprises: intelligent image sensors, edge servers and a remote cloud, wherein the intelligent image sensor is used for perceiving and generating images, and uploading the images to the edge server; the edge server is used as a client; the remote cloud is used as a server; the clients train a convolutional fuzzy rough neural network based on the received images and the proposed federated learning framework; and the intelligent image sensors download the weight parameters of the trained convolutional fuzzy rough neural network from the clients, and classify and recognize the images based on the trained weight parameters. The present invention searches a lightweight deep learning architecture through neuroevolution, and deploys the lightweight deep learning architecture in the image sensors to automatically discriminate and analyze the perceived images.Type: GrantFiled: January 17, 2023Date of Patent: January 23, 2024Assignee: HEBEI UNIVERSITY OF TECHNOLOGYInventors: Bin Cao, Jianwei Zhao, Xin Liu, Hua He, Yuchun Chang, Yun Li
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Publication number: 20230168148Abstract: An accelerated life test method for a speed reducer of an industrial robot is provided. The accelerated life test method includes: setting first load stress higher than rated load stress and second load stress lower than the rated load stress; performing an accelerated life test by loading the first load stress to first speed reducer samples; calculating a service life of each of the first speed samples in the accelerated life test; performing a contrast test by loading the second load stress to second speed reducer samples; calculating a service life of each of the second speed samples in the contrast test; and calculating an acceleration coefficient, and the acceleration coefficient is equal to a ratio of the service life in the accelerated life test to the service life in the contrast test.Type: ApplicationFiled: July 19, 2022Publication date: June 1, 2023Applicant: Hebei University of TechnologyInventors: Xu Han, Shuyong Duan, Xin Gao, Yourui Tao, Nan Ye, Jia Wang
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Patent number: 11491476Abstract: The present invention provides a regeneration method and a regeneration device of a poisoning honeycomb catalyst, and belongs to the field of catalyst regeneration. The regeneration method of the poisoning honeycomb catalyst provided by the present invention includes the following steps: carrying out microwave heating treatment on the poisoning honeycomb catalyst, and then spraying liquid nitrogen into cells of the poisoning honeycomb catalyst so that the poisoning honeycomb catalyst is regenerated. The regeneration method provided by the present invention is simple, and the efficiency of the regenerated catalyst can be increased by 90% more than the original efficiency. According to the regeneration device of a poisoning honeycomb catalyst provided by the present invention, the catalyst regeneration is carried out by using the regeneration device provided by the present invention, the regeneration operation is simple, and the catalytic efficiency of the regenerated catalyst is improved.Type: GrantFiled: December 13, 2019Date of Patent: November 8, 2022Assignee: HEBEI UNIVERSITY OF TECHNOLOGYInventor: Boxiong Shen
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Publication number: 20210198781Abstract: A method and an apparatus for environmentally-friendly batch hot-dip coating of high-performance alloy are provided. The method is that workpiece is heated to the process temperature in the heating box with inner gas before galvanizing. The heating box body consist of two or three zones, which are waiting zone, heating zone and post-plating turnover zone (the post-plating turnover zone can be omitted). A zinc pot is arranged in the heating zone, and the zinc pot is configured for hot-dip coating. Workpieces can be processed with zinc or zinc-based alloys. A transporting device is configured to successively transport in a sealed state the workpiece to be processed to the waiting zone, the heating zone, the zinc pot, and the post-plating turnover zone (the post-plating turnover zone can be omitted). The new method realizes hot-dip coating with zinc and other zinc-based alloys without the use of the flux.Type: ApplicationFiled: November 10, 2020Publication date: July 1, 2021Applicants: HEBEI UNIVERSITY OF TECHNOLOGY, TIANJIN GONGDA GALVANIZING EQUIPMENT CO., LTD.Inventors: Xiaoming CAO, Yanqi ZHAO, Ruina MA, Yongzhe FAN, Zongcai ZHOU, Lin MA
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Publication number: 20210008536Abstract: The present invention provides a regeneration method and a regeneration device of a poisoning honeycomb catalyst, and belongs to the field of catalyst regeneration. The regeneration method of the poisoning honeycomb catalyst provided by the present invention includes the following steps: carrying out microwave heating treatment on the poisoning honeycomb catalyst, and then spraying liquid nitrogen into cells of the poisoning honeycomb catalyst so that the poisoning honeycomb catalyst is regenerated. The regeneration method provided by the present invention is simple, and the efficiency of the regenerated catalyst can be increased by 90% more than the original efficiency. According to the regeneration device of a poisoning honeycomb catalyst provided by the present invention, the catalyst regeneration is carried out by using the regeneration device provided by the present invention, the regeneration operation is simple, and the catalytic efficiency of the regenerated catalyst is improved.Type: ApplicationFiled: December 13, 2019Publication date: January 14, 2021Applicant: Hebei University of TechnologyInventor: Boxiong Shen
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Patent number: 10494699Abstract: The invention provides a method of refining aluminum alloy, which is characterized in that aluminum-based nanometer quasicrystal alloy is used as an aluminum alloy refiner to refine the aluminum alloy; the aluminum-based nanometer quasicrystal alloy does not comprise Si, Fe or Cr; the aluminum-based nanometer quasicrystal alloy consists of (1) Al; (2) Mn and (3) La and/or Ce. The refiner selected in the invention is rare earth-containing alloy which has a strong refinement ability on the aluminum alloy, and is nanometer quasicrystal; after adding the rare earth-containing alloy to melt, the element distribution of the rare earth-containing alloy is more uniform than that of traditional alloy; and nanometer quasicrystal particles substantially increase the number of heterogeneous nucleation particles and improve the grain refinement effect of the aluminum alloy.Type: GrantFiled: March 16, 2016Date of Patent: December 3, 2019Assignees: CITIC DICASTAL CO., LTD., Hebei University of TechnologyInventors: Lisheng Wang, Yongning Wang, Zhihua Zhu, Chunhai Liu, Changhai Li, Lateng A, Zhendong Zhang, Bangwei Bai, Weimin Zhao, Zhifeng Wang
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Patent number: 8912134Abstract: A method of cleaning copper material surfaces in ultra large scale integrated circuits after polishing, the method including: a) mixing and stirring between 1 and 4 wt. % of a surfactant, between 0.5 and 3 wt. % of a chelating agent, between 0.1 and 5 wt. % of a corrosion inhibitor, and deionized water, to yield a water soluble cleaning solution with pH value of between 7.4 and 8.2; and b) washing the copper material surfaces using the cleaning solution after alkaline chemical-mechanical polishing under following conditions: between 2000 and 3000 Pa of pressure; between 1000 and 5000 mL/min of flow rate; and at least between 0.5 and 2 min of washing time.Type: GrantFiled: January 10, 2013Date of Patent: December 16, 2014Assignee: Hebei University of TechnologyInventors: Yuling Liu, Xiaoyan Liu, Na Liu, Yangang He
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Publication number: 20130133691Abstract: A method of cleaning tungsten plug surfaces in ultra large scale integrated circuits after chemical-mechanical polishing, the method including: a) preparing a cleaning solution by mixing deionized water, between 15 and 30 g/L of an active agent with respect to the deionized water, between 5 and 20 g/L of a chelating agent with respect to the deionized water, and between 1 and 60 g/L of a corrosion inhibitor with respect to the deionized water; b) after alkaline chemical-mechanical polishing, washing the tungsten plug surfaces using the cleaning solution at a flow rate of between 1000 and 4000 g/min for between 30 s and 3 min.Type: ApplicationFiled: January 10, 2013Publication date: May 30, 2013Applicant: HEBEI UNIVERSITY OF TECHNOLOGYInventor: HEBEI UNIVERSITY OF TECHNOLOGY
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Publication number: 20130118522Abstract: A method of cleaning multilayer copper wirings in ultra large scale integrated circuits after chemical-mechanical polishing, the method including: a) preparing a cleaning solution, the cleaning solution including between 0.1 and 5 wt. % of a nonionic surfactant, between 0.1 and 7 wt. % of a corrosion inhibitor, and between 0.1 and 0.6 wt. % of a chelating agent in deionized water; b) adjusting the pH value of the cleaning solution to between 7 and 8 using triethanolamine; c) during the production of ULSI, after the chemical-mechanical polishing step, washing the multilayer copper wirings with the cleaning solution at a flow rate of between 500 and 5000 mL/min for between 0.5 and 1 min; d) ultrasonic washing in the presence of deionized water under following conditions: 60 Hz frequency of ultrasound, 50° C. temperature, and between 0.5 and 1 min ultrasonic time; and e) drying the multilayer copper wirings.Type: ApplicationFiled: January 10, 2013Publication date: May 16, 2013Applicant: HEBEI UNIVERSITY OF TECHNOLOGYInventor: HEBEI UNIVERSITY OF TECHNOLOGY
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Publication number: 20130123158Abstract: A method of cleaning copper material surfaces in ultra large scale integrated circuits after polishing, the method including: a) mixing and stirring between 1 and 4 wt. % of a surfactant, between 0.5 and 3 wt. % of a chelating agent, between 0.1 and 5 wt. % of a corrosion inhibitor, and deionized water, to yield a water soluble cleaning solution with pH value of between 7.4 and 8.2; and b) washing the copper material surfaces using the cleaning solution after alkaline chemical-mechanical polishing under following conditions: between 2000 and 3000 Pa of pressure; between 1000 and 5000 mL/min of flow rate:; and at least between 0.5 and 2 min of washing time.Type: ApplicationFiled: January 10, 2013Publication date: May 16, 2013Applicant: HEBEI UNIVERSITY OF TECHNOLOGYInventor: HEBEI UNIVERSITY OF TECHNOLOGY
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Publication number: 20040103738Abstract: 3˜6-DOF decoupling structure modular reconfigurable parallel micromanipulator can be configured to different structures and degrees of freedom for different task requirement and work environment. Integral structure of reconfigurable modules like fixed platform module, 2-PSS limb module, 2-PUS limb module, 1-PSS limb module, 2-PUS limb module, 1-PUU limb module, moving platform module and driver module are described. Decoupling structure parallel micromanipulators of 3-, 4-, 5- and 6-DOF are constructed by the reconfigurable modules and theirs structure is described in detail. The invention has the merits of multiplicity and multifunction. What's more, it can solve the problem of the rather large assembly error in the full assembly and the baddish manufacturing process in the integral structure.Type: ApplicationFiled: April 21, 2003Publication date: June 3, 2004Applicant: Hebei University of TechnologyInventors: Feng Gao, Jianjun Zhang, Weimin Li, Hui Zhao, Binbin Peng