University of Science and Technology Beijing

Baidu Online Network Technology (beijing) Co., Ltd.

Xiaogang Li

Dawei Zhang

Chaofang Dong

Xuequn Cheng

Lingwei Ma

Kui Xiao

Cuiwei Du

Jinke Wang

Yao Huang

Liang Zhang

Fan Zhang

Yunlong Li

Jie Zhou

Zhiyong Liu

Di Xu

Hong Luo

Le Guo

Ruixue Li

Qing Huo

Junjia Lu

Yedong He

Decheng Kong

Baozhuang Sun

Ni Li

Chenhao Ren

Xiaoqing Ni

The present disclosure discloses a process for evaluating a corrosion inhibitor based on a high-throughput corrosion chip. In the present disclosure, a high-throughput corrosion chip is first prepared by using a chip spotter, and only a corrosion inhibitor and a corrosive substance need to be spotted on a metal sample to quickly, efficiently, and accurately evaluate performance of a corrosion inhibitor formulation, to meet corrosion test conditions such as different substances, different concentrations, and different corrosion duration; and then a corrosion degree of each measurement point in the high-throughput corrosion chip is identified and quantified by using a laser scanning confocal microscope. The high-throughput corrosion chip prepared by using the foregoing method can bear 10-1000 measurement points, and these measurement points can reflect corrosion effects of different inhibitor formulations in different corrosion duration.

Process for evaluating corrosion inhibitor based on high-throughput corrosion chip

Disclosed are a superhydrophobic coating with abrasion resistance and a preparation method thereof. The coating has a composite structure formed by a nanohybrid composed of nano-SiOand multi-wallet carbon nanotubes, and a resin as a matrix.

Superhydrophobic coating with abrasion resistance and preparation method thereof

A repair method for self-detecting and self-healing of corrosion defects in metals can achieve self-detecting and self-healing repair of an initial corrosion defect and be used to repair a micron-level corrosion defect. Furthermore, the self-detecting and self-healing repair method can be used to effectively repair an initial corrosion defect in a large-sized high-precision structural component, thus effectively improving the service safety of the high-precision metal structural component and prolonging the service life of the same.

Repair method for self-detecting and self-healing of corrosion defects in metals

The present disclosure provides a high-flux sensor suitable for corrosion big data monitoring and a method of manufacturing the same. The sensor includes a first metal sheet, a second metal sheet and an insulating sheet therebetween. The two metal sheets are laminated. The metal sheets and the insulating sheet form a test piece group. A through hole is drilled in the test piece group.

High-flux sensor suitable for corrosion big data monitoring and manufacturing method

The present disclosure provides a method of manufacturing a surface nanotube array of a laser-melted stainless steel, including a step of an anodic oxidation treatment on the stainless steel, which includes performing the anodic oxidation treatment on the stainless steel by applying a voltage between the stainless steel as an anode and a graphite as a cathode in a solution formed by using sodium dihydrogen phosphate, perchloric acid, and ethylene glycol as a solute, and deionized water as a solvent.

Method of manufacturing surface nanotube array on selective laser melted stainless steel

The present invention discloses a method, apparatus and a storage medium for defending against malicious clicks. The method includes: acquiring a shielding policy corresponding to promotional content; determining a user in a shielding policy list as the user to be shielded based on the shielding policy and historical click information of users; and performing shielding processing on the promotional content for the user to be shielded, if the user to be shielded in the shielding policy list conducts a retrieval. According to the technical solution provided by the embodiments of the present invention, malicious clicks are prevented at the stage of displaying promotional content in a front end of a server.

Method, apparatus and storage medium for defending against malicious clicks

This disclosure relates to a preparation method of a low-pH controlled-release intelligent corrosion inhibitor. The low-pH controlled-release intelligent corrosion inhibitor comprises a hydrogel with low pH responsiveness and a corrosion inhibiting substance having the capacity of corrosion inhibition. That is, a corrosion inhibiting substance is wrapped in a low-pH sensitive hydrogel. The swelling degree of the pH sensitive hydrogel may be changed according to the amounts of monomers and crosslinking agents so as to control the releasing speed of the corrosion inhibiting substance. By the soaking experiment and the measurements of electrochemical polarization curves and alternating impedance spectra, the sensitive and long-lasting features of the low-pH controlled-release intelligent corrosion inhibitor are indicated. Therefore, the advantageous effects of this disclosure lies in that: 1) the system enables the releasing speed of the corrosion inhibiting substance to be controlled by pH; 2) the system enables long-lasting effect and high corrosion inhibition efficiency of the corrosion inhibiting substance; and 3) the system has broad applicability.

Preparation method of low-pH controlled-release intelligent corrosion inhibitor

This present invention provides a method for preparing a stainless reinforcing steel bar resistant to corrosion of chloride ions, and belongs to the technical field of corrosion-resistant materials. This method particularly comprises the steps of: selecting a reinforcing steel bar blank, and performing oil removing, rust removing, water washing, and drying treatments on the surface of the reinforcing steel bar blank to be treated, or directly performing sand blasting or shot blasting on a reinforcing steel bar blank whose surface is only slightly rusted; placing the reinforcing steel bar blank in a chromium-containing environment, and keeping at a certain temperature for a certain time such that chromium in the environment is capable of diffusing into the surface of the reinforcing steel bar blank to form a chromium-containing diffusion layer, wherein an area in the diffusion layer where the weight content of Cr exceeds 12% meets the basic component requirements for a stainless steel, and this area is the effective diffusion layer described in this invention; and performing cooling treatment on the heat diffusion treated reinforcing steel bar. In this invention, a reinforcing steel bar blank is pre-formed, a heat diffusion technique is optimized, and the corrosion resistance to chloride ions of the stainless reinforcing steel bar of this invention is superior to that of the 316L stainless reinforcing steel bar.

Method for preparing stainless reinforcing steel bar resistant to corrosion of chloride ions

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Beijing, China

Xiaogang Li