13results about How to "Strong process applicability" patented technology

The invention discloses a pipeline butt joint welding seam surplus height grinding device and method, the grinding device comprises an electric control module, a vehicle body module and a milling and grinding device module, and the appearance of a main body of the grinding device is of a cuboid trolley structure with an n-shaped handheld handle on the upper portion; the vehicle body module comprises a vehicle body shell, a lifting hand wheel hole and a metal magnetic wheel; the electric control module is located on the upper portion of the vehicle body module and provides power for the grinding device and controls electrical equipment. The milling and grinding device module is located in a vehicle body shell of the vehicle body module and comprises a lifting hand wheel, a speed reducer, a motor, a frame body and a spiral milling cutter. The grinding device makes contact with a to-be-treated pipeline through the metal magnetic wheel, the position of the milling and grinding device module is controlled by rotating the lifting hand wheel, then the carry distance of the spiral milling cutter is controlled, and the purpose of milling and grinding the weld reinforcement is achieved. The device is compact in structure, convenient to carry, simple in structure, low in use and maintenance cost and easy to operate, and the grinding speed and quality are improved.

The invention discloses a wire rod for a high-quality rubber tube steel wire and a preparation method of the wire rod. The wire rod comprises the following components in percentage by mass: 0.80%-0.84% of C, 0.10%-0.20% of Si, 0.50%-0.60% of Mn, less than or equal to 0.014% of P, 0.0030%-0.010% of S, 0.0020%-0.0045% of total oxygen, 0.0005%-0.0015% of Als, 0.0001%-0.0010% of Nb, 0.0004%-0.0010% of Co, 0.01%-0.10% of Cr and the balance of iron and inevitable impurities. Through the design of the chemical components and the production process of the wire rod, the strength difference of the prepared wire rod is smaller than or equal to 35 MPa, the hardness difference of the cross section of the wire rod is smaller than or equal to 40 HV1, and the requirement for the long fatigue life of a rubber tube steel wire is met.

This invention discloses a photothermal responsive multifunctional composite coating, its preparation method, and its application, relating to the field of antibacterial nanomaterials technology. The composite coating comprises an electrophoretic deposition onto a substrate using an electrophoretic solution formulated with chitosan and electrospun short fibers. The electrospun short fibers are prepared by electrospinning a spinning solution formulated with polylactic acid and a core-shell composite material, followed by plasma treatment and fluffing. The core-shell composite material is a composite material with a silver nanorod core and a mesoporous silica shell; wherein the silver nanorods encapsulate gold bipyramidal seeds. The core-shell structured silver nanoparticle antibacterial agent provided by this invention significantly alleviates the problems of cytotoxicity of silver nanoparticles and limited functionality as a surface modification material for bone implants.

The invention provides a composite carbon black material for artificial stone as well as a preparation method and application thereof, the composite carbon black material for artificial stone comprises the following raw materials in parts by weight: 10 parts of carbon black and 3 parts of a siloxane complexing agent, the moisture content of the composite carbon black material is less than 1%, and the particle size is less than or equal to 10 microns. The composite carbon black material for the artificial stone can be applied to production of quartz plates, and the composite carbon black accounts for 2-6% of the mass of the quartz plates. According to the composite carbon black material for the artificial stone as well as the preparation method and the application of the composite carbon black material, the compatibility with a quartzite base material can be enhanced, and the water absorption rate of a plate is reduced, so that the anti-knock performance and the waterproof and impermeable performance are improved.

The invention belongs to the technical field of chemical synthesis, and particularly relates to a catalytic synthesis method of functional special polyether with narrow molecular weight distribution. The method comprises the following steps: by taking C1-C12 alcohol as an initiator, carrying out polymerization reaction with epoxide under the action of an organic catalyst, so as to prepare the functional special polyether with narrow molecular weight distribution. According to the invention, by designing an organic catalyst with a molecular structure containing phosphorus-boron (P-B) double active centers, not only is efficient catalytic ring-opening polymerization of alkylene oxide realized under a low-temperature condition, but also a special polyether product with high molecular weight and narrow molecular weight distribution is prepared. Meanwhile, by using the organic catalyst, the problems that a commercial DMC system is prone to inactivation, complex in mechanism and metal residues exist in ethylene oxide polymerization can be solved, and the application range of PAG in the fields of cosmetics, medicine and food-grade oil is widened.

The invention provides a preparation method of a high-strength high-hardness wear-resistant high-entropy alloy coating. The preparation method comprises the following steps: S1, mechanically grinding, polishing and cleaning a base material; s2, adopting Al < x > Cr < Fe > Co < Ni < 0 lt >; xlt; 1.5) performing laser direct energy deposition on metal powder on the base layer plate to prepare a high-entropy alloy coating; s3, the surface of the high-entropy alloy coating is mechanically ground, polished and cleaned; s4, the ultrasonic surface deep rolling technology is adopted for treating the high-entropy alloy coating; and S5, carrying out constant-temperature annealing treatment on the rolled coating. According to the preparation method, the laser direct energy deposition, the ultrasonic surface deep rolling technology and the constant-temperature annealing technology are combined, the AlxCrFeCoNi high-entropy alloy with the gradient nanometer heterogeneous and nanometer precipitated phase composite microstructure is prepared, and the strength, hardness and abrasion resistance of a high-entropy alloy coating are greatly improved; the efficient preparation method of the high-performance and high-entropy coating is provided for core parts of key equipment such as ocean equipment, engineering machinery and coal mine machinery.

The invention relates to a method for rolling a high-strength ultra-thin plate by a heavy and medium plate mill, which solves the problems that the thickness specification is 5.0 + / -0.5 mm, the width is less than or equal to 2800mm, the rolling yield reaches 950MP level, and the rolled plate shape and performance of a quenched and tempered 600Mpa steel plate are unstable through the technological means of blank selection, hot blank temperature difference limitation, finish rolling constraint rolling, straightening, twice quenching and tempering. The unevenness of the obtained thin and wide steel plate is smaller than or equal to 3 mm / m, the thickness tolerance meets the deviation requirement of the national standard GB / T709-2006, the yield strength level can reach 650-720 Mpa, and the impact at-196 DEG C is larger than or equal to 90 J. The method is suitable for batch production of high-strength wide thin plates, high in percent of pass and good in plate shape, can be realized by most medium and thick plate factories at present, and has good process applicability.

The invention discloses a wire rod for a 1100 MPa cableway rope and a preparation method of the wire rod. The wire rod comprises the following components in percentage by mass: 0.79%-0.85% of C, 0.10%-0.20% of Si, 0.50%-0.60% of Mn, less than or equal to 0.015% of P, 0.0030%-0.010% of S, less than or equal to 0.0040% of N, 0.0010%-0.0020% of total oxygen, 0.0005%-0.0020% of Als, 0.0002%-0.0010% of Nb, 0.0003%-0.0010% of V, 0.0005%-0.0015% of (Nb + V) and the balance of iron and inevitable impurities. Through chemical component design, component proportion optimization and process parameter adjustment, the wire rod has good comprehensive mechanical properties, and meets the performance requirements of users for cableway ropes in the service process.

The invention discloses a phased array ultrasonic scanning device and system for transverse defect detection of a medium-and-large-diameter pipeline welded joint and a using method.The scanning device comprises a handle, a scanning device host, a probe clamping module, a magnetic wheel and a control cable interface, the handle is arranged on the upper portion of the scanning device host, and the probe clamping module is arranged in the center of the interior of the scanning device host; clamping the phased array probe; four magnetic wheels are arranged at the lower part of the scanning device host and are connected with a servo motor in the scanning device host; the upper portion of the rear side of the scanning device host is provided with a multi-core control cable interface, the control cable interface is matched with a control cable, one end of the control cable is inserted into the control cable interface, and the other end of the control cable is inserted into a phased array detector interface. And connection and communication between the scanning device and the phased array detector are realized. The method is good in process applicability, high in universality, high in detection precision, high in detection speed, high in detection efficiency and convenient to maintain and upgrade.

The present invention discloses a continuous steel sampler with different depths and a method for using the same. The structure includes a steel sampler assembly, a lifting mechanism, a lateral moving device, a lifting mechanism and a mounting frame. The steel sampler assembly includes an outer sleeve and an inner body. The inner body is movably sleeved with the outer sleeve. The outer sleeve is connected to the lateral moving device. The inner body is connected to the lifting mechanism. The lateral moving device is slidably connected to the side wall of the mounting frame. A lifting mechanism for controlling the upward and downward movement of the steel sampler assembly is provided at the bottom of the lateral moving device. The sampler can be used for sampling steel samples with different depths in containers such as die casting ladles, continuous casting ladles, intermediate ladles, and continuous casting crystallizers, and can especially be used for sampling steel samples with different depths and smelting slag at the steel slag interface. The composition, inclusions and other information of steel samples with different depths can be quickly understood. The sampling method saves time and improves efficiency.

The invention provides a Fischer-Tropsch synthesis tail gas purification system which comprises a decarburization unit, a drying tower, a mercury removal tower, a gas-liquid separator, a heavy hydrocarbon washing tower, a methane rectifying tower and a PSA unit, the decarburization unit is used for removing carbon dioxide in Fischer-Tropsch synthesis tail gas, the drying tower is used for drying and dehydrating the decarburized Fischer-Tropsch synthesis tail gas, and the mercury removal tower is used for removing mercury in the Fischer-Tropsch synthesis tail gas. The mercury removal tower is used for carrying out mercury removal treatment on the dried Fischer-Tropsch synthesis tail gas, the mercury removal tower is connected to the gas-liquid separator, the gas-liquid separator is used for carrying out gas-liquid separation treatment on the Fischer-Tropsch synthesis tail gas, the gas-liquid separator is connected to the heavy hydrocarbon washing tower, and the heavy hydrocarbon washing tower is used for carrying out heavy hydrocarbon washing on the Fischer-Tropsch synthesis tail gas; the heavy hydrocarbon washing tower is connected to the methane rectifying tower, the methane rectifying tower is used for rectifying the Fischer-Tropsch synthesis tail gas, the PSA unit is connected with the top of the methane rectifying tower through a pipeline, and the PSA unit is used for purifying the rectified Fischer-Tropsch synthesis tail gas. According to the scheme, the recycling effect of the Fischer-Tropsch synthesis tail gas is improved.

The invention provides a preparation method of a polyimide coating. According to the method, the polyimide coating with a rough outer surface is prepared under the condition that a template or filler is not used. The method comprises the following steps: uniformly covering the surface of a base material with a polyamide acid solution under a low-humidity environment condition, and carrying out leveling drying for a certain time; the base material coated with the polyamide acid solution coating is moved to a high-humidity environment condition and stored in the high-humidity environment for a certain time for solvent volatilization, and the side, making contact with air, of the coating is converted into a rough surface from a smooth surface in the solvent volatilization process; and the base material coated with the polyamide acid solution coating is moved into a curing device to be subjected to imidization treatment, and the polyimide coating with the rough surface is prepared. The polyimide coating prepared by the method has the characteristics of simple process, no introduction of additional additives or fillers and no introduction of additional templates, can be applied to preparation of special composite materials in the aerospace field, and improves the interface bonding strength of the composite materials.

This invention discloses a method for recycling waste polyurethane materials and a method for preparing polyurethane products, belonging to the technical field of waste polyurethane material recycling and reuse. The recycling method includes: a powder preparation stage, where waste polyurethane materials are pulverized using a pulverizing device to obtain polyurethane powder; a premix preparation stage, where the polyurethane powder is mixed with a degrading agent, catalyst, and co-solvent in a specific ratio, and then mixed uniformly using a stirring device to obtain a premix with a certain powder content; and a degradation stage, where the premix is ​​ground, extruded, and sheared using equipment with mechanical shearing and extrusion functions, the reaction process is carried out within a set temperature range, and after the reaction is completed, a degraded polyurethane mixture is obtained. In the method for preparing polyurethane products, part or all of the polyol raw material is taken from the degradation mixture. This invention achieves low reagent consumption, low temperature and short time degradation, no need for gas protection, and no generation of toxic substances such as aromatic amines. The resulting high-performance heterogeneous polyol can be directly used in the preparation of polyurethane products without any post-processing.