11results about How to "Good split effect" patented technology

The invention provides a modified silicone oil agent with a comb-shaped structure as well as a preparation method and application thereof, the oil agent comprises an amino modified silicone oil emulsion and an epoxy modified silicone oil emulsion, and the mass ratio of the amino modified silicone oil emulsion to the epoxy modified silicone oil emulsion is 1: (0.5-1.5); the amino modified silicone oil emulsion and the epoxy group-containing modified silicone oil emulsion have comb-shaped structures, main chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are acrylate polymers, and branch chains are amino short silane chains or epoxy group-containing short silane chains; the preparation method of the oiling agent comprises the following steps: respectively preparing amino short-chain silicone oil and epoxy group-containing short-chain silicone oil, and then respectively synthesizing amino modified silicone oil emulsion and epoxy group-containing modified silicone oil emulsion. The acrylate polymer is introduced, the content of organic silicon is reduced, the viscosity of the oiling agent is small, carbon fibers are conveniently oiled, a protective film is formed on the fibers, friction and abrasion between the fibers are prevented, and therefore the surface defects of the carbon fibers are reduced.

The invention provides an oiling agent for carbon fibers as well as a preparation method and application thereof, the oiling agent comprises an amino modified silicone oil emulsion and an epoxy modified silicone oil emulsion, and the mass ratio of the amino modified silicone oil emulsion to the epoxy modified silicone oil emulsion is 1: (0.5-1.5); the amino modified silicone oil and the epoxy group-containing modified silicone oil are comb-shaped in structure, main chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are acrylate polymers, and branch chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are amino short silane chains or epoxy group-containing short silane chains; the preparation method of the oiling agent comprises the following steps: firstly, preparing an acrylate prepolymer by a solvent polymerization method, then respectively preparing amino modified silicone oil and epoxy group-containing modified silicone oil, and finally respectively carrying out water emulsification. The acrylate polymer is introduced into the oiling agent provided by the invention, so that the silicon content is reduced, the viscosity of the oiling agent is reduced, carbon fibers are conveniently oiled, a protective film is formed on the fibers, friction and abrasion between the fibers are prevented, and the surface defects of the carbon fibers are reduced.

The utility model provides an electric roller distributing device which comprises two oppositely-arranged installation bases and a plurality of electric rollers evenly arranged between the two installation bases at intervals, transverse through grooves are formed in the middles of the two installation bases, sliding groove bases are arranged on the outer sides of the through grooves, the two ends of each electric roller are fixed to the sliding groove bases through fixing pieces, and the electric rollers are fixed to the sliding groove bases through fixing pieces. A plurality of pulling teeth are evenly arranged on the electric rollers in the circumferential direction in the length direction of the electric rollers at intervals, and the pulling teeth on every two adjacent electric rollers are arranged in a staggered mode. The device can separate oversized tobacco leaves, large and medium tobacco leaves, fragment tobacco leaves and impurities, reduce the amount of tobacco leaves entering an electrostatic impurity removal belt and an impurity selection belt, reduce the impurity removal difficulty of impurity selection personnel, and improve the impurity removal efficiency.

The invention provides a method for preparing a key intermediate of finerenone with high chiral purity, and uses D-camphorsulfonic acid and an organic solvent as a chemical resolution system to prepare 2-cyanoethyl (4S)-4-(4-cyano-2-methoxyphenyl)-5-hydroxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxylate, with an ee value of up to 98.0%. The preparation method provided by the invention has mild reaction conditions, simple process, high reaction yield, low production cost, and is suitable for industrial production.

The utility model discloses an embedded assembly type building foundation which comprises a first foundation and a second foundation, a positioning strip is fixed on the outer wall of the first foundation, a positioning frame connected to the outer wall of the positioning strip in a sleeved mode is fixed at the top end of the second foundation, and the positioning frame and the positioning strip are connected through a limiting mechanism. The limiting mechanism comprises a cavity, a clamping block, a clamping groove and a spring, and the cavity is formed in the positioning strip. According to the pre-embedded fabricated building foundation, after positioning strips are inserted into positioning frames, clamping blocks are pressed to be shrunk into cavities, springs are driven to be compressed, after the positioning strips continue to move, the clamping blocks correspond to clamping grooves, the clamping blocks are inserted into the clamping grooves under the springback of the springs, and therefore the first foundation and the second foundation can be completely assembled; and in the transportation process, the first foundation and the second foundation can be transported separately, the good splitting effect is achieved, the use requirement of building construction is met, and the foundation installation efficiency is improved.

The utility model discloses a cross axle frame final forging die, including corresponding final forging upper die and final forging lower die, be equipped with final forging cavity between final forging upper die bottom surface and final forging lower die top surface, form final forging parting surface between final forging upper die bottom surface and final forging lower die top surface, the annular fly edge storehouse of final forging parting surface upper side is equipped around final forging cavity, the final forging convex column of four prism shape is equipped with in final forging cavity in final forging lower die, and final forging square ring cavity is final forging convex column outside in final forging cavity lower part, and one final forging cylindrical groove is equipped with in final forging cavity front side middle part and rear side middle part, and one triangle convex is equipped with in final forging convex column lower part's front side and rear side. The utility model can realize accurate positioning with the cooperation of the shallow square column hole of pre-forging piece and pre-forging convex column, so that metal material can be full in final forging cavity in the final forging process, and the final forging piece scrap rate is greatly reduced, and the final forging upper die and final forging lower die are balanced in stress when forging, and the service life of the die is long, and the die is convenient to demould after final forging.

The present application relates to the technical field of liquid chromatography column chiral stationary phase, in particular to a poria acid polysaccharide chiral stationary phase and application. The poria acid polysaccharide and its derivatives have spectral and high-efficiency chiral resolution capacity, and can realize effective resolution of chiral compounds in normal phase chromatography mode, so as to further obtain single configuration drugs, realize universal application of single configuration drugs, provide a new sugar-based stationary phase on the basis of traditional sugar-based stationary phases such as cellulose, amylose and beta-cyclodextrin, and enrich the range of chiral selectors. The chiral high-performance liquid chromatography column has the characteristics of fast separation speed, good resolution effect, good stability and repeated use.

This utility model discloses an automatic loading and unloading robotic arm structure for a glass double-sided straight-edge machine, relating to the technical field of glass double-sided straight-edge machines. It includes a base assembly and a robotic arm assembly. A movable turntable assembly is connected to the middle of the base assembly, and the robotic arm assembly is mounted on the top surface of the movable turntable assembly. A material-grabbing component is connected and installed at the end of the robotic arm assembly away from the movable turntable assembly. This automatic loading and unloading robotic arm structure for a glass double-sided straight-edge machine, by incorporating the robotic arm assembly and the movable turntable assembly, maximizes the overall structural flexibility of the device. This ensures that the material-grabbing component can perform fast and stable loading and unloading operations on the glass material. The structural design of the material-grabbing component ensures stability during the loading and unloading process. The base assembly drives the movable turntable assembly, which is connected to the robotic arm assembly and the material-grabbing component, to perform stable horizontal movement.

A carbon fiber industrial sizing device, which consists of four parts: a sizing system, a sizing system, a sizing control system, and a mobile and fixed base system. The device can be conveniently grafted onto an industrial production line to realize the sizing production and testing of various new sizing agents and carbon fibers with various sizing rates. The present invention is used for carbon fiber sizing, and the carbon fiber bundle has high spreading efficiency, fast sizing agent impregnation speed, uniform sizing, and good single-filament mesh separation performance, and the entire sizing production process has no power consumption and no waste sizing agent discharge.

The invention relates to a mosquito-coil disc splitting, transporting and stacking device, comprising a frame, a mosquito-coil disc discharging mechanism arranged on the frame, a pushing mechanism arranged on one side of the mosquito-coil disc discharging mechanism, a mosquito-coil disc splitting mechanism located on the other side of the mosquito-coil disc discharging mechanism, a mosquito-coil disc transporting mechanism arranged on one side of the mosquito-coil disc splitting mechanism, a finished product clamping and stacking mechanism arranged at the end of the mosquito-coil disc transporting mechanism and a finished product placing conveyor belt; the device can automatically and continuously complete the processes of mosquito-coil disc splitting, transporting and stacking, and has high operating efficiency.

The utility model discloses a steel sheet type workpiece distributing mechanism which is characterized in that steel sheet type workpieces are punched by a punching machine to form annular steel sheets and circular steel sheets, and the distributing mechanism comprises a conveying distributing device and an overturning distributing device. The conveying and distributing device is connected to a discharging port of the punching machine and comprises two conveying belts and a driving mechanism for driving the conveying belts to operate, a discharging space is formed between the two conveying belts, a fixed baffle is fixed to the side, away from the discharging space, of each conveying belt, and the first discharging box is located under the discharging space. And first-time material distribution of the circular steel sheets and the annular steel sheets is achieved. The overturning and distributing device is located at the discharging end of the conveying belt and comprises a rotating motor, an overturning rod and clamping mechanisms fixed to the two sides of the overturning rod, each clamping mechanism comprises two clamping jaws and a clamping motor, the clamping jaws can clamp the annular steel sheets on the conveying belt, a second discharging box is arranged below the clamping mechanisms, and the second discharging box is connected with the rotating motor. And second-time material distribution of the circular steel sheets and the annular steel sheets is achieved.