37results about How to "Reduce production conditions" patented technology

The invention relates to a cyclic preparation method of low-temperature high-strength corrosion-resistant large-density foam glass. The cyclic preparation method has the advantages that by glassy-state prepared materials, special designing of the steps of preprocessing, pressurization, foaming and demoulding and special optimization of relevant parameter, the defect that the common foam-glass preparation process is difficult to obtain the low-temperature high-strength corrosion-resistant large-density foam glass, the quality of a product is optimized, the toxic and side effects are reduced, the process operation is simple, the yield is higher, the product is high in strength, large in density, high in corrosion resistance, low in water absorption rate, lower thermal expansion coefficient and thermal conductivity coefficient and higher in thermal shock resistance and closed porosity; especially, the mechanical property of the modified low-temperature foam glass is obviously improved; and the preparation method is simple in process and low in cost and is suitable for industrial production.

The invention discloses a zero-VOC inorganic fire-resistant functional coating suitable for electronic clean workshops and a preparation method. The coating consists of the following components in parts by weight: 35-45 parts of filler; 10-20 parts of calcium; tourmaline powder 5‑15 parts; 15‑25 parts of inorganic mineral gel; 5‑25 parts of inorganic mineral pigment; 1‑5 parts of floating beads; 15‑30 parts of clear water. The invention has the advantages of no VOC, formaldehyde, benzene series, heavy metals and other harmful substances, no radioactive hazard, good fire resistance, antibacterial and mildew resistance, no peculiar smell and no reduction in the yield rate of products inside the electronic clean workshop.

The capacitor MEMS acceleration sensor is one sandwich type differential capacitor structure comprising an upper electrode, a middle electrode and a lower electrode, and the movable middle electrode includes one frame with slots, one mass block with one central hole and one cantilever beam. When the mass block moves up and down, the air inside the cavity may pass through the hole and flow out through the slots, and the enhanced air flow can prevent the mass block from moving freely, resulting low damp and less noise.

The electron tube consists of cooling water jacket, cathode, first grid, second grid and anode. The improved first grid is made from pyrolytic graphite. The second grid is made from molybdenum filament welded in squirrel cage shape. With surface being sprayed by tungsten carbide, the molybdenum filament is sintered and plated by platinum. The upper parts of two grids are connected to ceramic ring at upper part of cathode. The first grid is made from graphite after dedicated procedure the first grid possesses higher capabilities of high temperature resistant and radiation resistant. The heat dissipation capability of the first grid made from graphite is 5 times of grid made from molybdenum filament so as to reduce size greatly.

The invention relates to a preparation method of a steroid compound, in particular to the preparation of desoximetasone, which takes 1, 4, 9, 16-arachidonic-pregna-3, 20-diketone (CN1896090) as the initiator and is improved by 16, 17-grignard, 9, 11th and 21st to obtain the desoximetasone and the 21st esterified ester thereof. The process has the advantages that, as the existing intermediate of the company is adopted as the initiator, the line is concise, the material is easy to obtain, expensive auxiliary materials are saved, and the yield and the cost are obviously superior to the historical synthetic method of the desoximetasone; in addition, the adoption of the existing intermediate realizes the doubling production of the dexamethasone products, betamethasone products and the desoximetasone products, thus greatly reducing the production cost and industrial conditions.

The invention discloses a temperature sensor and a washing machine. The temperature sensor is formed through injection-molding sealing. The temperature sensor comprises a resistance core, a draw-forthpart and an injection-molding body, wherein the draw-forth part is connected with terminals of the resistance core, and comprises a first-segment draw-forth part and a second-segment draw-forth partwhich are connected with each other, and the first-segment draw-forth part is connected with terminals of the resistance core; the injection-molding body is subjected to injection-molding sealing outside the resistance core and the first-segment draw-forth part, an avoidance cavity is formed in the injection-molding body, and the second-segment draw-forth part is located in the avoidance cavity. By means of the temperature sensor, through injection-molding sealing forming, the steps of a manufacturing technology are omitted, and thus the manufacturing technology is simplified; meanwhile, the manufacturing technology takes few minutes, and the production efficiency of the temperature sensor is effectively improved; the inject-molding sealing technology does not need high temperature either,the manufacturing condition of the temperature sensor is lowered, and thus the production cost is lowered; bubbles cannot be generated in the injection-molding sealing forming process, and sensing drifting of the resistance core due to the presence of the bubbles is avoided.