111results about How to "Reduce firmness" patented technology

The invention relates to a silicon wafer fine polishing combined solution capable of inhibiting particle deposition and a preparation method thereof, belonging to the field of CMP (chemical mechanical polishing). The silicon wafer fine polishing combined solution capable of inhibiting particle deposition is prepared by using silicon dioxide/water-soluble polymer composite abrasive particles, hydroxyl-containing and/or amino-containing surface protecting agent, alkali compound, surfactant and deionized water. The pH (potential of hydrogen) of the silicon wafer fine polishing combined solution is 8-12. Compared with the prior art, the deposition of particles is effectively inhibited, and the precision and the quality of polished silicon wafer surfaces are improved. The silicon wafer fine polishing combined solution provided by the invention has the advantages that the used raw materials are easy to obtain, the silicon wafer fine polishing combined solution is pollution free, the requirements on environmental protection are satisfied and the large-scale industrial production is easy to realize.

The invention relates to a door lock device and a dish-washing machine with the same. The door lock device comprises a lock body and a lock catch box, bolts which are arranged at intervals side by side are disposed in the lock body, resetting springs are arranged among the bolts, the bolts can rotate around rotating shafts, and lock holes which can be snapped with the bolts are arranged on the lock catch box. As the bolts are arranged at intervals side by side, the resetting springs are disposed among the bolts, when snapped with the lock holes, the bolts compress the resetting springs so that the intervals among the bolts are decreased, and the bolts enter the lock holes and are snapped with the lock holes. Accordingly, when the bolts are snapped with the lock holes, firmness of closing of a door body cannot be reduced even if the bolts have an elastic deformation characteristic.

The invention relates to a method for planting plants by improving a shallow groove and restoring salinate fields in situ; the method comprises the following steps: for planting different plants, shallow-groove strip tillage is carried out on the salinate; a layer of cornstalk, a layer of cow dropping and a layer of cornstalk are laid at the bottom of the groove, then a saline-alkali reducing agent is applied, and then a layer of artificially improved soil which is mixed by luvisol dug from the tillage and artificial biological substrate matured by the cornstalk and the cow dropping in advance is applied; finally, the seeds of the plants is spread into the artificially improved soil, watered and surefooted and field management is carried out; and a layer of cornstalk is laid between the adjacent shallow grooves, the luvisol is used for building a ladder-shaped drainage ditch which is communicated with a water-collecting tank, thus draining excessive water in rainy season.

The invention relates to a graphene-organosilicon modified urethane resin synthetic leather, which is prepared from the following ingredients: graphene-organosilicon modified urethane resin, fluorine-modified alkide resin, propylene glycol n-butyl ether, a flatting agent, a thickening agent, a foaming agent, a filler, a water-based color paste, a plasticizer, an ammonium stearate emulsion and de-ionized water, wherein the graphene-organosilicon modified urethane resin is prepared through reaction of polyisocyanate, polyhydric alcohol, a polybasic amine chain extender, oligomer polyhydric alcohol, dimethylolpropionic acid, organosilicon, graphene, a neutralizer and de-ionized water; the synthetic leather prepared by the invention is capable of effectively preventing statical electricity, and has the characteristics of good abrasion resistance, high crosslinking density, good chemical resistance and no pollution.

The invention discloses a curd type broccoli cultivation method. The method includes the following steps that an appropriate variety, appropriate planting time and an appropriate planting place are selected; strong seedlings are cultivated; field management is performed and includes the steps of fertilization, land preparation, field planting, nutrient and water management, hormone spraying and shading treatment. Extension of curds and floral axes are promoted through spraying GA3, the curds become loose, and taste and quality become better; then through shading, the temperature is appropriately lowered, besides, lighting time can be shortened, in this way, when the extension of the curds and the floral axes is promoted, growth and development of flower buds can be delayed, and therefore the purpose of cultivating the curd type broccoli is achieved; through combination treatment of the multiple procedures, the compactness of the broccoli is lowered, the taste is improved, and the yield is increased.

The invention provides a composite pipe hydraulic expansion method, which comprises the following steps that (1) a plug provided with a sealing ring in the circumferential direction is inserted into an inner pipe; (2) sealing pressure liquid is introduced to a position between the plug and an inner ring of the sealing ring for sealing the end part of the inner pipe; (3) the expansion is carried out, before the expansion, a sleeve ring with the same inner diameter as an outer pipe of a composite pipe is arranged in a way of tightly pasting the end surface of the outer pipe of the composite pipe requiring the expansion, and in addition, the innermost end of the sealing ring is arranged outside the end surface of the outer pipe of the composite pipe. The sealing position exceeds the end surface of the outer pipe, so the pressure inside an inner pipe cavity can reach the end part of the outer pipe, and the combining quality is ensured. The defect of composite blind region reservation at the end part of the composite pipe manufactured in the prior art is overcome, and the composite pipe can be used without cutting off the blind region, so the cost is reduced in aspects of both materials and the process. The cutting is not needed, so great convenience is brought for the subsequent processing of external screw threads formed at the pip end of the composite pipe before the expansion.

Nutritional type ginseng land soil thermogenic agent belongs to the technical field of agriculture, and solves the problem that the root system suffers from serious frozen injury, and the survival rate of seedling is low when in the growing process of ginseng. The soil water retention agent is prepared by mixing 40.0-60.0% of pulverized fuel ash, 30.0-50.0% of crushed crop straw (with the water content of 60%), 0.30-0.50% of nitrohumic acid, 0.30-0.60% of monopotassium phosphate, 0.05-0.15% of boric acid, 0.10-0.30% of zinc sulfate, and 0.05-0.15% of ammonium molybdate based on the weight percentage. When in the land preparation, the nutritional type ginseng land soil thermogenic agent is evenly sprinkled on the soil, and the soil is ploughed for three times; when the soil water retention agent is uniformly mixed with ginseng bed soil with the depth of 30cm, the ginseng is transplanted. The invention is used for heating the ginseng land soil, and can raise the soil temperature. Meanwhile, the survival rate of seedling and the yield of the ginseng can be remarkably improved.

The invention discloses a chitosan-coated controlled release fertilizer for saline-alkaline soil and relates to the field of agriculture. The chitosan-coated controlled release fertilizer for saline-alkaline soil is made from chitosan, flyash, stalks, animal waste, furfural residue, citric acid residue, distillers' grains, desulfurization gypsum and the like, via the steps of fermenting, mixing, crushing, granulating, dissolving, spraying, perforating and the like; the wastes such as stalks, animal waste and furfural residue are fermented and then coated with chitosan such that the fertilizer may be released slow, fertility period is extended, fertilizer utilization rate is increased, saline-alkaline soil is better improved, and salt damage is relieved.

The invention discloses a soil conditioner and a preparation method thereof and relates to the field of soil conditioners. The soil conditioner is prepared from the following raw materials in parts byweight: 10 to 15 parts of straw particles, 40 to 45 parts of fermented cow dung, 3 to 7 parts of medical stone, 2 to 5 parts of dolomite powder, 5 to 10 parts of modified attapulgite, 2 to 5 parts ofdesulphurization gypsum powder, 4 to 9 parts of seafood shell powder, 5 to 10 parts of plant ash, 4 to 9 parts of sweet potato waste, 4 to 9 parts of fermented residue, 1 to 3 parts of shiitake mushroom extract, 1.5 to 3.5 parts of plant growth agent, 2 to 5 parts of amino acid salt, 1.5 to 3.5 parts of ferric chloride, 3 to 7 parts of ammonium dihydrogen phosphate, 2 to 5 parts of calcium superphosphate and 0.5 to 1.2 parts of microorganism acting bacteria. According to the soil conditioner, the soil fertility can be improved and a soil caking phenomenon is improved; the breathability, seepage, fertilizer-keeping and water retention capabilities of salt-alkali soil are remarkably enhanced; the physical-chemical properties of the soil are effectively improved.

The invention discloses a preparation method of organic compost capable of repairing soil. The organic compost is prepared from the following components in parts by weight: 95-102 parts of an organicbase material, 8-13 parts of microbial liquid and 3-5 parts of a bulk material, wherein the organic base material is prepared from the following components in parts by weight: 20-30 parts of plant branches and trunks, 10-18 parts of plant fallen leaves, 5-10 parts of seed shells, 10-15 parts of animal waste and 5-10 parts of animal bones; the microbial liquid is prepared from the following microbial agents in parts by weight: 2-5 parts of bacillus subtilis, 2-5 parts of bacillus sporothermodurans, 0.5-1.5 parts of mycorrhiza fungi, 1-3 parts of saccharomycetes, 0.5-1 part of streptomyces rimosus and 1-3 parts of bacillus laterosporus; and the bulk material is prepared from the following components in parts by weight: 3-5 parts of dried chicken manure and 2-4 parts of flour weevil manure. The invention further provides the preparation method of the organic compost, the porosity of the organic base material and microelements required by microorganisms are increased advantageously by adding the bulk material, dominant bacteria are strengthened through alternate cooling and heating treatment, the humification degree is increased advantageously, and nutritional ingredient are retained advantageously.

The invention belongs to the technical field of production of fluid ores of petroleum, natural gas, shale gas and the like, and particularly discloses a preparation technology of a self-suspension coated support material. The preparation technology comprises the following steps: (1) heating aggregate to the temperature of 80 to 230 DEG C, and stirring and mixing the heated aggregate; (2) cooling to the temperature of 75 to 200 DEG C, adding inner resin and a curing agent of the inner resin, and stirring, thus forming an inner coating layer; (3) cooling to the temperature of 65 to 190 DEG C, adding a drag reducer, and stirring; (4) cooling to the temperature of 55 to 130 DEG C, adding a catalyst, outer resin, an amine additive and a curing agent of the outer resin, and stirring, thus forming an outer coating layer; (5) cooling to the temperature of 40 to 80 DEG C, adding a blocking agent, and stirring; (6) cooling to the temperature of 30 to 70 DEG C, discharging out of a pot, and controlling the apparent density of a low-density support agent within the range of 1.05 to 2.60g/cm<3>. The self-suspension coated support material prepared by the preparation technology has the advantages that the flow guide property is good, the self-suspension property is good, and the friction drag is low.

The invention discloses a multistage cold former mechanical arm transmission mechanism, which comprises a shell. A working chamber is arranged in the shell and is arranged in a way of penetrating through side walls of the front side and the rear side of the shell; T-shaped sliding chutes are symmetrically formed in inner walls of the two sides of the shell; T-shaped sliding blocks are movably connected into the T-shaped sliding chutes; an installation plate is fixedly connected between the two T-shaped sliding blocks; a plurality of mechanical arms are arranged on a lower side wall of the installation plate; a first installation chamber is further arranged in a side wall of the lower side of the shell; a double-shaft motor is arranged in the first installation chamber; rotary rods are fixedly connected to two output shafts of the double-shaft motor; and two first threaded rods arranged symmetrically are further rotatably connected into the first installation chamber. According to the multistage cold former mechanical arm transmission mechanism provided by the invention, the multistage mechanical arms of a cold former are conveniently moved to different positions, so that products at different positions are conveniently clamped; and meanwhile, the multistage mechanical arms can conveniently clamp and loosen the products at the same time, the mechanism is simple and convenient tooperate, and the working efficiency of the mechanical arms is improved.

The present invention relates to soil improvement method, and is especially method for repairing alkali spot soil with furfural slag and Atriplex hortensis. Furfural slag as a kind of acid biomass contains rich organic matter, humic acid, nitrogen fertilizer, phosphate fertilizer, potash fertilizer and trace elements essential for plant to grow and has excellent effect of lowering soil pH value, activating calcium and magnesium salt and improving soil physical and chemical properties. The present invention repairs alkali spot soil through turning over soil, adding furfural slag, banking, leaching, seeding Atriplex hortensis, field management and other steps. The present invention has the advantages of environment friendship, low cost, fast effect, etc.

The invention discloses a skidding mechanism of a ditcher, including an enclosed sleeve or a skidding clip which is arranged at the front end of a frame arm of the ditcher and a skidding plate; one side surface of the enclosed sleeve is provided with a bolt hole, a skidding pillar of the skidding plate is provided with a plurality of bolt holes; the skidding mechanism is characterized in that: a U-shaped joint block is additionally arranged, two vertical posts of the U-shaped joint block are equipped with the bolt holes; either the skidding pillar is directly fixed on the enclosed sleeve or the skidding clip by a bolt, or the U-shaped joint block is firstly fixed on the enclosed sleeve or the warping clip by the bolt and then the skidding pillar is fixed on the other vertical post of the U-shaped joint block by the bolt. The mechanism of the invention not only is adaptable for trenching new ditches on a common field, but also can solve the problem of broadening and deepening and repeated ditch in old ditches.

The invention provides a pressure sensor, which comprises a lining board, a glass foundation bed, a chip, a silicon substrate, a pressing groove, a silicon elastic film, electrodes, pins and glass slurry, wherein the glass substrate is arranged on the lining board; the chip is embedded into the upper wall of the glass foundation bed; the silicon substrate is arranged on the top of the glass foundation bed; the pressing groove is arranged on the upper wall surface of the silicon substrate, and the pressing groove is sunken to the bottom of the silicon substrate; the silicon elastic film is attached to the inner wall of the pressing groove; the electrodes and the chip are electrically connected, and the electrodes are embedded into the upper wall surface of the glass substrate; the pins andthe electrodes are connected, and the pins penetrate through the foundation bed and the lining board; and the glass slurry is embedded into the glass foundation bed, and the glass slurry covers the outer sides of the electrodes and the pins. Pin holes are processed on the corresponding positions of the glass foundation bed and the electrodes, the pins and the electrodes are connected, the pins penetrate through the glass foundation bed and the lining board, and therefore, a required space for the horizontal direction of the chip is reduced.

The invention belongs to the technical field of fluid mineral exploitation of oil, natural gas, shale gas and the like, and particularly discloses a preparation process of an auto-suspension coating material. The preparation process comprises the following steps: (1) heating aggregate to 80-230 DEG C, and stirring and mixing the heated aggregate; (2) reducing the temperature to 75-200 DEG C, adding inner layer resin and a curing agent of the inner layer resin, and carrying out stirring to form an inner coating layer; (3) reducing the temperature to 40-130 DEG C, adding a catalyst, outer layerresin, an amine additive and a curing agent of the outer layer resin, and carrying out stirring to form an outer coating layer; (4) reducing the temperature to 35-90 DEG C, adding a drag reducer and carrying out stirring, wherein the mass of the drag reducer is 0.5-1.5% of that of the aggregate; and (5) reducing the temperature to 30-70 DEG C, taking the mixture out, and controlling the apparent density range of the auto-suspension coating material to be 1.05-2.60g/cm<3>. The auto-suspension coating material prepared by the preparation process has good flow conductivity, good auto-suspension performance and reduced friction resistance.

The invention relates to the technical field of soil improvement, in particular to a method for improving hardened tobacco planting soil. The method includes the steps of firstly, planting tobacco; secondly, planting paddy rice; thirdly, applying materials and performing smoldering, to be more specific, furrowing the field after paddy rice harvesting, sequentially filling paddy rice straw, soil particles, paddy rice straw, the mixture of tobacco straw and rice hulls, soil particles, rice hulls and soil particles into furrows in a layered manner, and performing smoldering after the materials are applied, wherein the thickness of each layer is different; fourthly, finishing the soil. By the method, soil bulk density can be lowered evidently, soil total porosity and ventilation porosity can be increased, soil organic matter and total nitrogen content can be increased, the activity of soil microorganisms can be increased, the hardening condition of the tobacco planting soil can be improved, and soil permeability can be evidently increased.

The invention relates to the technical field of graphite film metal composite material and discloses a high-binding-force graphite film metal composite material and a preparation method thereof. The high-binding-force graphite film metal composite material comprises a graphite layer, a metal transition layer and a surface metal layer. The graphite layer is a graphite film obtained only after carbonization and graphitization treatment. The preparation method comprises the following steps: preparing the graphite layer, preparing the metal transition layer through a melting method, carrying out calendaring and pickling, preparing the surface metal layer and carrying out anti-oxidation treatment in sequence. The high-binding-force graphite film metal composite material is convenient to prepare, is high in binding force between the graphite layer and the metal layer, and has excellent conductive performance and heat radiation performance.

The invention discloses a potato and late rice double-no-tillage cast transplanting planting method, belonging to the field of agricultural production. The method mainly comprises the following stepsof (1) potato no-tillage cultivation including (a) fine breed selection, (b) ditching and raking, (c) potato seed processing, (d) reasonable close planting and the application of enough base fertilizer, (e) covering with straws, (f) field management, and (g) timely harvest, and (2) late rice no-tillage cast transplanting including (a) breed selection, (b) seedling cast transplanting, (c) field management including scientific fertilization, reasonable irrigation, timely weeding and the prevention and control of pests and diseases, and (d) timely harvest. The method provided by the invention hasan obvious influence on the economy, yield and economic benefit of rice, the yield of late rice can be obviously increased, and the method has the characteristics of reducing labor intensity, savingcost and increasing efficiency, increasing production and income, and being simple and easy.

The invention discloses an improved method for compacted soil in a surface mine dump. According to the method, perennial gramineous plants including BromusinermisLeyss., Agropyroncristatum(L.)Gaertn,FestucaelataKeng ex E.Alexeev and Leymuschinensis(Trin.)Tzvel. are mixed with leguminous plants including Medicago falcata L. and Melissilusruthenicus(L.)Peschkova(TrigonellaruthenicaL.) to serve as acolonization plant which cooperates with arbuscular mycorrhizal fungi. The method provided by the invention can provide effective help for vegetation ecological restoration of the surface mine dump and can significantly reduce the compaction degree of the compacted soil, so that the method can be popularized.

The invention is suitable for the technical field of agricultural machinery, and provides a grain elevator fixed firmly. The grain elevator fixed firmly comprises a locking assembly, a transmission assembly and a grain elevating assembly, wherein the locking assembly comprises a car hopper side plate, locking rods, locking sheets, a support, clamping blocks, locking plates and pressure springs; the support is fixedly connected to the locking sheets; the locking sheets are positioned on the right side of the support; a locking hole is formed in the outer surface of each locking sheet; and the locking rods rotate clockwise, at the moment, each pressure spring drives the corresponding locking plate to be firmly abutted against the car hopper side plate through the corresponding clamping block, and thus, the grain elevator and the car hopper side plate are fixed firmly. Compared with an existing small grain elevator, the small portable grain elevator has the advantages that the grain elevator and the car hopper side plate can be fixed firmly, thus, when the grain elevator is used, the firmness cannot be relieved by vibration generated during running of the grain elevator, accidents areavoided effectively while the grain elevator is used simply and conveniently, and the safety of the grain elevator during use is improved.

The invention belongs to the field of mixtures for hole drilling or well drilling, and concretely discloses a preparation method of a coated proppant. The preparation method comprises the following steps: (1) preparation of the following raw materials: aggregates, polyol resin, epoxy resin, an epoxy resin curing agent, isocyanate resin, a catalyst and an amine additive, wherein the hydroxyl equivalent of the polyol resin is 60-300, and the mass of the isocyanate resin is 2/5 to 4/5 of the amount of the polyol resin; (2) heating; (3) sand mixing; (4) primary coating; (5) secondary coating; and(6) sand production. The proppant prepared by the preparation method can naturally suspend in clear water, and can meet the fracturing index requirement of conventional proppants without adding any thickener in the fracturing process, so the fracturing cost is reduced, the fracturing process is simplified, and the pollution to the environment is reduced.

The invention belongs to the technical field of fluid ore exploitation of petroleum, natural gas, shale gas and the like, and particularly discloses a suspension supporting agent. The suspension supporting agent comprises aggregates and a coating layer, wherein the coating layer comprises resin, a catalyst, a curing agent and an additive, and the suspension supporting agent is characterized in that the aggregates are quartz sand, the additive is an amines compound, the coating layer comprises an inner coating layer and an outer coating layer, the outer coating layer is prepared from polyalcohol resin, isocyanate and a catalyst, the amines compound is added into the outer coating layer, the isocyanate is 40 to 70 percent of the polyalcohol resin, and the hydroxyl equivalent amount of the polyalcohol resin is 60 to 300. The suspension supporting agent is mainly used for exploiting petroleum and shale gas, and solves the problems of the supporting agent used in clean water that the cost is increased due to the use of a cementing agent and the environment is polluted.