3results about How to "Consistent viscosity" patented technology

The embodiment of the invention provides a slit coating system and a slit coating method, the system comprises a base table, a coating area is arranged on the surface of the base table, the coating area comprises a first temperature control area and a second temperature control area, and the second temperature control area is arranged around the first temperature control area; the coating head is arranged above the base station; the control unit is used for controlling the temperature of the first temperature control area and the temperature of the second temperature control area to be a first target temperature when the coating head coats the substrate borne on the base table; and after the coating head coats the substrate, the temperature of the first temperature control area is controlled to be the second target temperature, or the temperature of the second temperature control area is controlled to be the third target temperature, so that the uniformity of the functional film layer formed based on the slit coating process is improved.

The application provides a fly ash-based filling material slurry, a preparation method and application thereof, and relates to the technical field of fluid conveying engineering. The fly ash-based filling material slurry provided by the application comprises the following components in parts by mass: 20-360 parts of fly ash and 10-100 parts of polyether polyol; the average specific surface area of the fly ash is 13-25 m 2 / g; and the number average molecular weight of the polyether polyol is 600-2000. In the application, the polyether polyol is adsorbed on the surface of the fly ash to form a fixed layer, the percolation of the fixed layer forms a gel network, the dispersion and suspension stability of the fly ash particles are realized, and by controlling the specific surface area of the fly ash and the number average molecular weight of the polyether polyol, the filling material slurry with long-term suspension stability is obtained. The experimental results show that the viscosity of the fly ash-based filling material slurry provided by the application is basically consistent before and after standing, the long-term suspension stability is good, the viscosity is low, and the pipeline conveying property is good.

The utility model relates to a hot runner structure of an injection mold in the field of injection molds, which comprises a main nozzle, a splitter plate and more than two hot nozzles, the splitter plate is provided with a heating tube, the surface of the splitter plate is provided with a heated channel, the surface of the splitter plate is provided with a heat-insulating outer frame and a heat-insulating plate, the heat-insulating outer frame is sleeved on the side wall of the splitter plate, and the heat-insulating plate is sleeved on the side wall of the splitter plate. The heat preservation plate covers an opening of the heat preservation outer frame, the heat preservation outer frame and the heat preservation plate are combined to form a heat preservation cavity, the splitter plate is located in the heat preservation cavity, the heat preservation outer frame and the heat preservation plate are connected with the splitter plate through bolts, a plurality of evenly-arranged heat insulation cavities are formed in the heat preservation outer frame and the heat preservation plate, and the two ends of the heating pipe penetrate through the heat preservation outer frame and are connected with a controller. The heat exchange between the splitter plate and the external environment is effectively blocked, the heat loss is greatly reduced, the defects of uneven filling, shrinkage, flash and the like caused by temperature fluctuation are reduced, and the forming quality and consistency of products are remarkably improved.