30results about How to "Reduce drying difficulty" patented technology

The invention discloses a preparation method of waterborne polyurethane synthetic leather Bayse and applications of the waterborne polyurethane synthetic leather Bayse, belonging to the technical fields of the synthetic leather and the preparation method. The preparation method comprises the following steps: (1) preparing a bottom cloth; (2) impregnating the bottom cloth, wherein, the impregnation prescription contains the following components in parts by weight: 100 parts of water and 1-10 parts of metal nitrade, and the liquid rate of the impregnated bottom cloth is 10-30%; (3) heating, ironing, pressing, polishing and baking the bottom cloth after impregnating; (4) coating a waterborne polyurethane foaming layer on the bottom cloth after baking; (5) obtaining the synthetic leather Bayse after common baking, pressing and polishing. According to the preparation method, the defects of fussy operation, heavy pollution and drying difficulty in the existing preparation process of the waterborne polyurethane synthetic leather Bayse are overcome; one-time impregnation prescription and process, which are free of pollution, low in liquid rate after impregnation, and easy to bake are provided; meanwhile, a synthetic leather product taking the waterborne polyurethane synthetic leather Bayse as a base cloth is also provided; the preparation method is high in efficiency, and the obtained product is good in performance.

The invention discloses a high-content high-universality talcum powder master filler and production equipment and a method thereof. The talcum powder master filler is prepared by 90 to 98 parts of talcum powder, 1 to 2 parts of stearate, 1 to 3 parts of sodium silicate and 3 to 5 parts of water. The content of talcum powder of the master filler can reach 90% to 95%, a great quantity of energy for fusion and plasticization is saved, production cost of the master filler is reduced greatly, and the problem of high-temperature operation environments caused by high temperature equipment is solved. Talcum powder filling content is high, and adding content of the master filler is low in subsequent use, so that adding cost of the master filler is reduced, universality of the talcum powder master filler is realized thoroughly. Since the talcum powder master filler prepared by the method contains no plastic resin, the problem about consistency of matrix during subsequent use can be ignored, and the high-content high-universality talcum powder master filler can be widely added and used in various talcum powder filling modified plastic products.

The invention provides a chip box cleaning device and method, which relate to the field of semiconductor wafers. The chip box cleaning device includes: a cavity, including a cleaning chamber and a drying chamber; an isolation plate, located inside the cavity, and the isolation plate has a closed state In the open state, in the closed state, it is used to isolate the cleaning chamber and the drying chamber, in the open state, the cleaning chamber and the drying chamber are connected; the film box bracket is located inside the cavity, and is used to carry the film box; mechanism, the film cassette support is arranged on the driving mechanism, and the driving mechanism can drive the film cassette support to move between the cleaning chamber and the drying chamber, and can drive the film cassette support to rotate. The embodiment of the present invention effectively solves the problems of large occupied area, high cost and low drying efficiency of the existing film cassette cleaning machine.

The invention provides a drying method for gel injection molding SiC ceramic impeller wet blanks. Aiming at the problems that the ceramic impeller wet blanks are easy to crack and deform in the initial drying stage in the gel injection molding process, it is proposed to use polyethylene glycol The method of drying the wet impeller with the drying liquid and supporting the wet impeller with an inert hard tray. In this method, a high-concentration polyethylene glycol drying liquid is firstly configured, and then the wet impeller and the inert support tray are immersed in the drying liquid to complete the second stage. Dry in the first stage, and then put it into a constant temperature and constant humidity drying box to complete the second stage of drying. Adopting this method makes the drying environment milder, the green body is dried evenly and thoroughly, and defects such as cracking and deformation of the green body caused by gravity and drying stress are avoided. The method is simple in operation, low in cost, short in production cycle and high in efficiency, greatly reduces the difficulty of drying large-sized impellers, and prepares large-sized impellers with a diameter of more than 350 mm.

The present invention relates to the technical field of animal husbandry, in particular to a method for grading and drying pasture grass, comprising the following steps: Step 1, pasture harvesting: including the first harvest and the second harvest, the first harvest being: during the theoretical harvest period of pasture In the first 20‑30 days, harvest the upper part of the pasture; after the first harvest, irrigate and fertilize; the second harvest is: cut off all the pasture 30‑40 days after the first harvest, step 2, dry the pasture , drying the pasture obtained from the first harvest to obtain pasture grass for young livestock, grading the pasture grass harvested the second time, separating the leaves and stems of the pasture grass, and then drying the leaves and stems respectively, and drying the leaves to obtain pasture grass for young livestock, After the stalks dry, they can be independently used as pasture grass for adult livestock. The method of the present application realizes the graded drying of forage grass; moreover, by adopting the method of two harvests, more grass is produced, and the proportion of leaves is larger, so it is easier to obtain high-quality pasture grass for young livestock.

The invention relates to the technical field of anti-corrosion plates, in particular to a preparation method of the anti-corrosion plate. By the selection and the proportion design of raw material components of anti-corrosion liquid, when a base plate is placed in the anti-corrosion liquid for soaking, harmful bacteria on the surface of the base plate can be effectively killed, and the anti-corrosion liquid can penetrate into the base plate to prevent the interior of a wood board from being eroded by worms; then tung oil is brushed onto the base plate, so that the surface layer of the base plate can be prevented from being soaked by water; furthermore, by the soaking in the anti-corrosion liquid and the control over the moisture content in a drying process, the shortcomings of rotting due to excessive moistening of the wood board and relatively low toughness and easiness in deformation due to over drying of the wood board are avoided; and therefore, the prepared anti-corrosion plate is higher in performance and attractive in appearance.