36results about How to "Block exchange" patented technology

The invention provides a substrate treatment device and a substrate treatment method. The device comprises a first load cavity, a first valve and a treatment cavity, wherein the first valve is arranged between the first load cavity and the treatment cavity, and is used for connecting the first load cavity with the treatment cavity, the substrate treatment device further comprises an air pressure regulation unit, so when the first valve is opened, the air pressure of the first load cavity is higher than the pressure of the treatment cavity. During the conveying process of a substrate, through controlling the air pressures of the first load cavity and the treatment cavity, the air in the treatment cavity cannot enter the first load cavity, so a film cannot be precipitated on the surface of a device in the first load cavity, accordingly, the service life of the first load cavity is prolonged, and the maintenance cost of the first load cavity is reduced.

The invention relates to a mixture formation device for an internal combustion engine operated with a burnable gas, preferably compressed natural gas CNG. The mixture formation device comprises a combination of a quantity regulator, a gas mixer, a flow-guiding element for pressure recovery, and a connection possibility for exhaust gas recirculation of the internal combustion engine. The mixture formation device according to the invention can empty a gas tank to a comparatively low pressure of about 2 bar, an excellent mixture formation being achieved over the entire range of speed and load range of the internal combustion engine. According to the invention, such a mixture formation device can reduce production costs as well as space requirements compared to known solutions. The invention also relates to an internal combustion engine operated with a burnable gas, particularly compressed natural gas (CNG), comprising such a mixture formation device in the intake tract thereof.

The invention relates to the technical field of fresh keeping, and in particular to an egg coating fresh-keeping agent. The invention aims to provide a natural, nontoxic and safe egg coating fresh-keeping agent. The technical scheme of the invention comprises that: each liter of the egg coating fresh-keeping agent contains 5 to 100g of pullulan sugar, 10 to 100g of glycerin, 10 to 50g of hydrophobic agent, 1 to 50g of surfactant, and the balance of solvents. The egg coating fresh-keeping agent has the advantages that: the coating fresh-keeping agent of the invention is used for forming a filmon the surface of an egg, so that the exchange of the matters inside and outside the egg shell and infection of various harmful microorganisms can be prevented in the storage process of the egg, the loss of dry matters and moisture can be reduced, and the egg can have a good storage quality.

The invention discloses a test device for simulating solar irradiation when an ion thruster is in an orbit which can carry out a simulation test of the solar irradiation under an in-orbit working condition of the ion thruster and can simulate a variety of working conditions, and the efficiency of the simulation test is high. In the test device for simulating the solar irradiation when the ion thruster is in the orbit, a plurality of irradiation sources are evenly arranged on a ring to form an annular irradiation structure; the ion thruster is positioned at the center of the ring; the annular irradiation structure and the ion thruster can rotate relative to each other and the axis of rotation is the axis of the ion thruster; a radiometer is mounted on the outer surface of the ion thruster; an industrial PC can turn off or turn on the corresponding irradiation source according to an operating position of the ion thruster and different angles of the solar irradiation and control a relative angle between the annular irradiation structure and the ion thruster, so as to simulate reception of the solar irradiation under the in-orbit working condition of the ion thruster; and the industrial PC is also used to adjust working parameters of the irradiation sources according to an irradiation dosage of the irradiation sources measured by the radiometer to simulate the irradiation dosage received under the in-orbit working condition of the ion thruster.

The invention discloses a full-width mercerizing machine for knitting. The full-width mercerizing machine comprises a supporting bottom plate, a cloth feeding mechanism, an alkaline dipping mechanism, a washing mechanism and a cloth falling mechanism, wherein the alkaline dipping mechanism comprises a dipping groove, a cloth feeding roller, a mangle roller and a cloth discharging roller; the cloth feeding roller and the cloth discharging roller are respectively arranged on the dipping groove; the mangle roller is arranged in the dipping groove which is provided with a shading component; the shading component is positioned above the mangle roller; the washing mechanism comprises a cleaning groove, a cloth guiding roller, a transmission roller and a washing component; the cloth guiding roller, the transmission roller and the washing component are respectively arranged on the cleaning groove; the cleaning groove is internally provided with a partitioning plate which partitions the cleaning groove into an alkaline washing area and a water washing area; the transmission roller is positioned above the partitioning plate; an alkaline washing roller is arranged in the alkaline washing area, and a water washing roller is arranged in the water washing area. The full-width mercerizing machine disclosed by the invention has the advantages that the structure is simple, the connection is flexible, the cleaning effect is good, the volatilization of dipping liquid can be reduced, a finished fabric product is good in handfeel and large in strength, the production efficiency is high and the practicability is strong.

The invention discloses fireproof wood and a preparation method thereof, and belongs to the field of building materials. According to the method, cetyl trimethyl ammonium bromide is used as a templateagent, ethyl orthosilicate is added, modifying is carried out by using ferric chloride to obtain a mesoporous substance, poisonous gases such as CO and the like is carried out with catalytic oxidation to convert into carbon dioxide in a flame-retardant process, so that a carbon layer of wood is stabilized; melamine and formaldehyde are taken as main raw materials to form an outer-layer wrapping material, ammonium borate and diammonium hydrogen phosphate are added for wrapping, so that the compatibility between the outer-layer wrapping material and the wood cellulose is improved, the outer-layer wrapping material can enter the gaps among cellulose cells, and migration and volatilization of the ammonium borate and the diammonium hydrogen phosphate can be reduced; and a Si-O-Si net structureformed after decomposition of adding phenyltrimethoxysilane, methyl triethoxysilane and the like increases the thermal stability of the surface carbon layer, the viscosity wraps around the gas generated in a high-temperature cracking process, the gas is prevented from leaking, so that the fireproof and flame-retardant performance is further improved. According to the method, the problem that theflame retardant effect of an existing fireproof wood is poor is solved.

The invention relates to a film-coated fresh-keeping agent specially used for boiled salted duck eggs. The present invention uses natural degradable polyvinyl alcohol and chitosan as the main substrate, supplemented with stearic acid, glutaraldehyde, whey protein concentrate, nano-TiO2, nano-SiO2, Kelingu, solvents and other materials or Processing aids to obtain coating film preservatives with barrier properties, antibacterial properties and mechanical properties. Through the data of mechanical properties, barrier properties and antibacterial properties of coating films obtained from different formulations, finally obtain special coating film preservation for boiled salted duck eggs agent, the beneficial effects of the present invention are: it can prevent the exchange of materials inside and outside the eggshell and the infection of various harmful microorganisms during the storage process of boiled salted duck eggs, and has a certain antibacterial effect, reducing the loss of dry matter and water, making Cooked salted duck eggs maintain good storage quality, extend the high-quality shelf life, and replace the existing plastic composite retort bag packaging, which can not only reduce the amount of plastic used, reduce environmental pollution, but also reduce production costs and increase profits.

The invention relates to the technical field of PC / PET (polycarbonate / polyethylene terephthalate) alloy, and particularly relates to halogen-free flame retardant PC / PET alloy and a preparation method thereof. According to the preparation method, ethylene-butyl acrylate and an ethylene-acrylate-maleic anhydride terpolymer are used as compatible reagents so as to draw on advantages to make up for disadvantages and give play to a synergistic effect, so that the compatibility of the PC / PET alloy is improved, thus the mechanical property of the PC / PET alloy is improved. As a phosphorous-nitrogen fire retardant adopted in the PC / PET alloy has high stability, the forming temperature requirements can be completely satisfied, and the flame retardancy effect is excellent. According to the preparation method, phosphorous acid is added so as to prevent ester exchange of PC and PET in an alloying process. In short, the good mechanical property and the flame retardant property of the halogen-free flame retardant PC / PET alloy are realized through a perfect formula system; the preparation technology is simple and low in cost.

The invention provides a special anti-caking agent for ammonium sulfate, a preparation method and application thereof. The anti-caking agent is a water-soluble liquid anti-caking agent. Specifically, the anti-caking agent is composed of: water: 20%-50%, volatile solvent: 10%-30%, film-forming agent: 20% % to 40%, crystallization agent: no more than 10%, surfactant: no more than 10%, crystal control agent: no more than 10%, defoamer: no more than 3%. The anti-caking agent of the invention not only effectively overcomes the use defects of oil agents and tablet anti-caking agents, improves the anti-caking effect, but also effectively reduces the phenomena of whitening, pulverization and hair growth on the surface of the ammonium sulfate fertilizer. Moreover, the preparation process is simple, efficient, convenient to use, suitable for industrial preparation, and conducive to popularization and application.

The invention discloses a sand-preventing method of an artificial borehole wall, and a material for sand prevention. The material for sand prevention comprises guide liquid, sand carrying liquid and promoting liquid which are prepared separately, wherein the guide liquid comprises the following components in percentage by weight: 0.5 to 20 percent of sodium chloride, 0.2 to 2 percent of calcium chloride, 0.1 to 1 percent of magnesium chloride, 0.2 to 4 percent of alkylphenol polyoxyethylene, 0.3 to 8 percent of an anionic surfactant capable of resisting calcium and magnesium ions and 0.01 to 6 percent of a dimethyl diallyl ammonium chloride-acrylamide-acrylic acid copolymer; the sand carrying liquid comprises the following components in percentage by weight: 0.01 to 5 percent of a dimethyl diallyl ammonium chloride-acrylamide copolymer and 0.5 to 20 percent of ammonium chloride; and the promoting liquid comprises the following components in percentage by weight: 8 to 22 percent of a penetrating agent and 18 to 35 percent of a dehydroxylation catalyst. The material for sand prevention performs sand prevention, can protect the stratum, has high sand carrying capability, reduces friction and enhances the consolidation strength, and the penetration ratio of the artificial borehole wall formed after sand prevention is more than 12 <mu>m<2>.