5results about How to "Avoid re-stacking" patented technology

The invention belongs to the technical field of coatings, and particularly relates to a coating for a galvanized plate and a preparation method thereof. According to the invention, molybdenum disulfide is modified by using graphene oxide and carbon nanotubes. Compared with an inert structure of a molybdenum disulfide nanosheet, a graphene oxide sheet layer contains a large number of oxygen-containing functional groups, and dispersion of the molybdenum disulfide nanosheet in the waterborne polyurethane coating can be effectively improved by modifying the molybdenum disulfide nanosheet through graphene oxide. The one-dimensional-structure carbon nanotubes added in the grafting reaction process of the graphene oxide and the modified molybdenum disulfide nanosheets can effectively prevent agglomeration of the nanosheet layers in the reaction process, so that uniform modification of the molybdenum disulfide nanosheets is ensured; and moreover, the carbon nanotubes have relatively high specific strength and specific modulus, and the added carbon nanotubes can form an interactive network with the graphene oxide and the molybdenum disulfide nanosheets, so that the mechanical property and the corrosion resistance of the waterborne polyurethane coating are greatly improved.

The invention discloses a numerical control lathe chip rolling device for machining, and belongs to the technical field of lathe machining, the numerical control lathe chip rolling device comprises a placing cylinder, and two symmetrically arranged supporting seats are arranged at the bottom of the placing cylinder; the separating cylinder is horizontally arranged in the placing cylinder; the separating and conveying structure is arranged in the separating cylinder, and the separating and conveying structure is rotationally connected with the separating cylinder; the separating and removing structure is arranged on the separating and conveying structure, and the separating and removing structure is in sliding fit with the separating and conveying structure; the separating and moving structure is arranged outside the placing cylinder, the separating and moving structure is in sliding fit with the placing cylinder, and the separating and moving structure can drive the separating cylinder to move in the placing cylinder; a feeding port and a discharging port are formed in the containing cylinder, and the feeding port is connected with the containing cylinder. According to the device, different positions of a plurality of separation filter holes can be cleaned, so that cleaning is more comprehensive, and the cleaning effect is better.

The invention discloses a biomass pellet fuel and a preparation method, and relates to the technical field of fuel production and processing, the preparation method comprises the following steps: crushing: conveying a biomass raw material to be treated into a crusher for crushing to form uniform material chips; drying: conveying the material scraps into a drying machine from the crusher for drying; granulation: putting the dried material chips into a granulation forming machine to form formed regular material particles; wherein material scraps are conveyed into the drying machine from the pulverizer through the conveyor, and a dustproof device is arranged on the conveyor and used for collecting and cleaning dust generated when the conveyor conveys materials; according to the preparation method, the dust entrained by the material scraps is collected through the dustproof device, so that dust pollution caused by the entrained dust in subsequent drying and granulation procedures to corresponding preparation equipment is avoided, the subsequent cleaning work intensity is reduced, and the quality of the material prepared by the preparation method is guaranteed.

The present application belongs to the technical field of paint, and particularly relates to a kind of paint for galvanized sheet and its preparation method.The present application uses graphene oxide, carbon nanotube to modify molybdenum disulfide.Compared with the inert structure of molybdenum disulfide nanosheet, graphene oxide sheet layer contains a large number of oxygen-containing functional groups, and the modification of molybdenum disulfide nanosheet by graphene oxide can effectively improve the dispersion of molybdenum disulfide nanosheet in water-based polyurethane paint.In the process of grafting reaction between graphene oxide and modified molybdenum disulfide nanosheet, the addition of one-dimensional structure carbon nanotube can effectively prevent the aggregation of nanosheet layer during the reaction process, thereby ensuring the uniform modification of molybdenum disulfide nanosheet;and, carbon nanotube has high specific strength and specific modulus, its addition can form an interactive network with graphene oxide and molybdenum disulfide nanosheet, greatly improving the mechanical properties and corrosion resistance of water-based polyurethane coating.

The utility model relates to the technical field of briquetting machine devices, in particular to a medicine briquetting machine which comprises a main box body, a collecting opening is formed in the left side of the main box body, a feeding barrel is arranged at the upper end of the main box body, a discharging opening is formed in the right side of the feeding barrel, a telescopic end is arranged on the upper surface of the main box body, and a derivative plate is arranged at the upper end of the telescopic end. Meanwhile, a connecting column is arranged at the lower end of the derivative plate, a top plate is arranged at the upper end of the connecting column, a longitudinal moving column is arranged at the lower end of the top plate, a spiral blade is arranged in the feeding barrel, a briquetting opening is formed in the center of the upper surface of the main box body, and meanwhile edge plate blocks are arranged on the two sides of the briquetting opening; the medicine briquetting device has the advantages that the spiral blade is arranged in the feeding device, so that the condition that briquetting is difficult due to part of large medicine particles in subsequent briquetting is avoided, and edge plate blocks are arranged on the two sides of a briquetting opening; by means of the arrangement of the edge plate blocks, medicine left beside the two lower pressing openings can be gathered into the lower pressing openings after each time of block pressing.