739results about How to "Increase tightness" patented technology

The invention discloses an evaporation masking plate. The evaporation masking plate is used for evaporating a pixel region on a display panel. The display panel comprises a substrate, a pixel limiting layer arranged on the substrate, and cushion blocks arranged on the pixel limiting layer. The substrate is divided by the pixel limiting layer into a plurality of sub-pixel regions, and the sub-pixel regions include the evaporation sub-pixel regions and the non-evaporation sub-pixel regions. The evaporation masking plate comprises a masking plate body and evaporating holes formed in the masking plate body, and the evaporating holes penetrate the masking plate body. A thinning region is arranged at the portion, corresponding to the cushion blocks on the display panel, of the masking plate body so that the thickness of the position, corresponding to the cushion blocks on the display panel, of the masking plate body can be smaller than the whole thickness of the masking plate body. By means of the evaporation masking plate, a gap between the evaporation masking plate and the substrate can be removed, the attachment compact degree can be increased, the color mixing risk can be reduced, and the evaporation quality can be improved.

The invention discloses an aramid rubber canvas fabric structure for high-strength conveyor belts and a production process of the aramid rubber canvas fabric structure. The aramid rubber canvas fabric structure comprises warps and wefts, aramid materials are adopted in the warps, at least four warps are paved in the belt length direction, nylon industrial yarns are adopted in the wefts which are crisscrossly paved on upper end faces and lower end faces of the warps, the wefts on upper and lower layers are tightly crisscrossly bonded to the warps by adopting bundling yarns, and a canvas fabric structure is obtained after secondary bath gum dipping; the production process includes single-layer canvas knitting, secondary bath gum dipping and reeling. Single-layer structures of the warps adopting the aramid materials and the weft adopting the nylon materials are knitted through bundling yarns, the high-strength conveyor belts with the strength higher than 2500N/mm are produced after secondary bath gum dipping, mechanical physical properties of the conveyor belts are improved, layer reduction and weight reduction of the conveyor belts are realized during the production process, the conveyor belts are adaptively high strengthened, less layered and lightweight, energy consumption is reduced, the production process is further simplified, and production efficiency is higher.

The invention discloses a dipped canvas fabric structure in a three-dimensional structure for a heavy-duty conveyor belt and a production process thereof. The dipped fabric structure is characterized in that an upper layer and a bottom layer adopt ground-facing warps (1) in the plain weave structure and weft (2) interwoven with the ground-facing warp, a straight warp (3) in the straight warp structure is utilized as an intermediate layer, a bundling warp (4) is connected with the weft (2), and the upper layer, the intermediate layer, the bottom layer and the bundling warp form the three-dimensional structure. The production process comprises the following processes: the process of weaving a fabric on a machine: adopting double warp shafts to send a warp woven cloth; and the process of stipulating a dipping formula and preparing, wherein a dipping solution is a mixture of an RF (resorcinol-formaldehyde) resin water solution generated by virtue of condensation polymerization of hydroxyphenol and formaldehyde and VP (vinyl pyridine) latex (L), the total content of solids is 18-22%, the pH value is 9-11, and the ratio of the RF to the L is (1:5)-(1:7). Polyester dipped canvas in the three-dimensional structure is especially applicable to production of the heavy-duty rubber conveyor belts and has the characteristics of tear resistance, puncture resistance and impact resistance.

The invention relates to a method for melt-spinning, drawing, and winding a multifilament thread to form a fully-drawn yarn and to a device for performing the method. First, a plurality of filaments are extruded from a thermoplastic melt, cooled to a temperature below the glass transition temperature of the thermoplastic material, and joined to form a filament bundle by supplying a preparation oil having a water content of at most 8%. Then, the filament bundle is removed by a simple partial wrapping on optionally heated guiding jackets of several driven galettes at a speed above 1,200 m/min. For drawing and subsequent relaxation, the filament bundle is guided at a drawing speed above 3,500 m/min by a simple partial wrapping on the circumference of further heated guiding jackets of driven galettes. For this purpose, the device according to the invention comprises two galette groups having several driven galettes, wherein the first galette group guides the filament bundle in order to remove and/or heat the filament bundle by simple partial wrapping and the second galette group guides the filament bundle in order to draw the filament bundle by simple partial wrapping.

The invention discloses a method for manufacturing an outer ring of a tapered roller bearing, comprising the following steps of: a: taking a material: setting the quality of the finished product outer ring as M, setting the outer diameter as D, taking a bearing steel pipe with the outer diameter of D1 as the raw material, taking the bearing steel pipe with the quality of M1 and meeting the condition that one half of D is less than or equal to D1 which is less than D, and M1 is equal to 2M plus M2 plus 2M3, wherein M2 is the margin of quality by cutting, and M3 is the margin of quality of single outer ring by grinding process; b: cold rolling: rolling on the bearing steel pipe taken in the step a for obtaining a combined blank of the outer ring; c. cutting: cutting the combined blank at the connecting ring for obtaining a single blank of the two outer rings; d: thermal processing; and e: finish machining: grinding the single blank of the outer ring. The proposal leads the outer ring of the tapered roller bearing to realize the cold rolling for shaping, has the advantages of small material loss, saved energy consumption, simple process, high production efficiency and the like, and simultaneously ensures the product quality.

The invention discloses a manufacturing method of a high-density interconnected printed circuit board, which mainly comprises the following steps that: the high-density interconnected printed circuit board is divided into a core layered structure, an outer layered structure and a plurality of middle layered structures which are respectively manufactured and finally pressed in; and the method for manufacturing the core layered structure, the outer layered structure and each middle layered structure is to press protective films onto copper foil base plates with made lines, drill through holes, fully fill conductive paste into the through holes and remove the protective films, so that the conductive paste is protruded out of the surfaces of the copper foil base plates. According to the method, the processing procedures are simple, the repeat of electroplating and hot pressing is reduced, the energy is saved, the environment is protected, and the production efficiency and the yield are high.

The invention relates to a silicon-carbon anode paste and a preparation method thereof, and belongs to the technical field of lithium-ion batteries. The silicon-carbon anode paste comprises an acrylonitrile multi-component copolymerized LA-type water-based electrode binder, a carbon black Super-p conductive agent, a single-arm carbon nanotube suspension emulsion, a silicon-carbon/carbon nanotube composite anode material and deionized water. The preparation method of the anode paste comprises the following steps: (1) adding the acrylonitrile multi-component copolymerized LA-type water-based electrode binder and the deionized water to a planetary stirrer for stirring, preparing a binder solution and standing the binder solution for later use; (2) putting the carbon black Super-p conductive agent and the single-arm carbon nanotube suspension emulsion to the planetary stirrer for ball-milling and wet mixing; (3) putting the mixed two conductive agents and the silicon-carbon/carbon nanotube composite anode material into the planetary stirrer for carrying out thick material stirring; and (4) adding the binder solution for mixing and stirring, finally adding the deionized water to adjust the viscosity of the anode paste and sieving the paste.

An electric treadmill with a folding mechanism includes a handrail frame pivotably mounted at both sides of the front end of the base frame. A guide plate having a sliding groove, two link plates, and a positioning plate attached to the handrail frame are provided between both sides of the base frame and the handrail frame. The guide plate is connected to a sliding support of a ground-touching roller. The sliding support is pivotably coupled to the bottom of the base frame. According to the assembly of the above-mentioned components, when the base frame is lifted in a folded position, a slide pin of the link plates is movable in the sliding groove of the guide plate until the base frame is folded in an upright position.

The invention discloses a processing technology of a UV-curing fluorine-containing wear-resistant hydrophobic coating. The processing technology comprises the following steps: a, preparing hydrophobicnano SiO2/TiO2 particles; b, preparing an organic silicone fluorine-containing acrylate emulsion; c, preparing a bottom-layer hydrophobic coating emulsion; e, spraying the bottom-layer hydrophobic coating emulsion; and f, spraying a surface hydrophobic coating. The processing technology disclosed by the invention has the beneficial effects that a double-layer cooperation manner of the bottom-layer hydrophobic coating and the surface hydrophobic coating is adopted, so that the coating has the properties of hydrophobicity and lipophobicity while adhesion of the waterproof coating and a target material is ensured, and water resistance of the target material is improved; the bottom-layer hydrophobic coating is cured by acrylate, so that contact strength of the bottom-layer hydrophobic coatingand the surface of the target material can be provided, and the compactness of the waterproof coating can be improved; and a structure of a nano material is stabilized through the organic silicone modified fluorine-containing acrylate, fluorine-containing silane and fluorine-containing acrylate are also used, so that hydrophobicity of the surface-layer hydrophobic coating is improved.

The invention belongs to the glass manufacturing technology field, and discloses a manufacturing method for color glaze coated glass and color glaze coated glass. The manufacturing method comprises steps: a cutting procedure is carried out, namely, a glass original sheet is selected and cut; a washing and grinding procedure is carried out, namely, the glass original sheet is ground and washed; a printing procedure is carried out, namely, a screen printing plate is selected and washed, printing oil is blended, and a pattern is printed on the surface of the glass original sheet; a toughening procedure is carried out, namely, the surface of the glass original sheet is cleaned, the glass original sheet is conveyed to a toughening furnace and heated, then is outputted after heating and cooled rapidly to a normal temperature, and glaze layer is formed; a coating procedure is carried out, namely, coating layers with different colors are plated on the glaze layer according to needs. The color glaze coated glass is manufactured through the above manufacturing method. The manufacturing method is simple, and the production efficiency is high. The color glaze coated glass manufactured through the method has good acid-base resistance, has a good adhesive force, and is durable and wear-resistant. The color is changeable, the sunshade effect is raised, and usage requirement of the coated glass are met.

The invention relates to a waterproof and flame-retarded PVC (polyvinyl chloride) cable material for a data cable. The material comprises the following components in part by weight: 100 parts of PVC resin, 32 to 38 parts of trioctyl trimellitate, 4 to 6 parts of stabilizer, 8 to 10 parts of fire retardant and 8 to 12 parts of waterproof modifier, wherein the waterproof modifier is prepared by cladding 2 to 3 parts of nano-barium sulfate, 4 to 7.5 parts of calcined kaolin and 2 to 3 parts of nanosilicon dioxide by using 0.3 to 0.5 parts of silane coupling agent. The material can adapt to a complex using environment and resist water for a long time, and excellent electrical insulation property, mechanical property and flame resistance are also kept.

The invention discloses a high-power drafting assembly used for a ring spinner, comprising a front drafting roller pair with a front roller and a front belt roller, and a rear drafting roller pair with a rear roller and a rear belt roller, wherein, a middle roller and an upper middle roller are arranged between the front drafting roller pair and the rear drafting roller pair, an upper pin is arranged between the upper middle roller and the front belt roller, while a lower pin is arranged between the middle roller and the front roller, an upper apron is sleeved on the upper middle roller and the upper pin, a lower apron is sleeved on the middle roller and the lower pin, the forward setting distance K between the upper pin front edge and the lower pin front edge is at least 3 millimeters, the ratio of the setting distance L from the upper middle roller to the front belt roller and the setting distance S from the roller to the front roller is between 1.1 and 1.6. The high-power drafting assembly can shorten the freestream flow zone length to the utmost extent, extend the control area of the apron, effectively increase the drafting multiple of the drafting assembly and guarantees the quality of the completed filament.

The invention discloses a double-spindle core moving type numerical control lathe. The numerical control lathe structurally comprises a fixture rotating driving motor, support legs, a workpiece adsorption fixing device, a double-open glass door, a three-color warning lamp, a double-spindle numerical control lathe body, a controller, a cuttings guide pipe and a movable cuttings storage frame. The workpiece adsorption fixing device is arranged in the double-spindle numerical control lathe body. The fixture rotating driving motor is arranged at the bottom of the workpiece adsorption fixing deviceand is in clearance fit with the workpiece adsorption fixing device. According to the double-spindle core moving type numerical control lathe, the workpiece adsorption fixing device inserts one end of a workpiece into a fixture axle hole; at the moment, a driving mechanism can be triggered; the workpiece adsorption fixing device automatically fixes the workpiece to the interior of the axle hole through cooperation of a vacuum adsorption mechanism and an electromagnetic reinforcement mechanism; accordingly, the workpiece is fixed automatically, and the manual material changing speed is increased.

The invention discloses a preparation method of an immobilized microbial agent for kitchen waste treatment and an application thereof. The method comprises the following steps: respectively performing high-density liquid fermentation on Kluyer pichia yeast and geotrichum silvicola, and mixing the bacterial liquids in proportion; after concentrating a composite bacterial solution, adding the composite bacterial solution to a modified carrier, mixing the materials, adding a crosslinking agent during a mixing process, and then performing constant temperature aeration culture; and after constant temperature aeration, performing low temperature drying to obtain the immobilized microbial agent. The method of the invention not only significantly increases the amount of carrier immobilized thalline, but also makes the binding between the carrier and the thalline tight, prevents the living bacteria from being lost in the preparation process and the preservation, improves the live bacteria of the unit mass of the microbial agent, and reduces the amount of the microbial agent; The prepared microbial agent has strong capability for decomposing the kitchen waste, the odor generated in the process of degrading the kitchen waste can be eliminated, the amount of the thalline immobilized in the carrier is large, the binding between the carrier and the thalline is closer, and the biomass of the living bacteria is large.

The invention relates to a fixing device of a leading-out cable of a pressure sensor, and aims to solve the problems that the existing pressure sensor is damaged or measure failure is caused due to the fact that the leading-out cable is not fixed. A fastening spring screw is arranged between an outer cover of the pressure sensor and a leading-out terminal of the leading-out cable and is near to the leading-out cable after passing through the outer cover of the pressure sensor, a cable-protecting spring and a pouring sealant. Furthermore, a fastening spring screw pouring sealant ring groove is formed in the inner wall of a part in which the pouring sealant is filled, of the outer cover of the pressure sensor. Based on the arrangement of the fastening spring screw and the fastening spring screw pouring sealant ring groove, the outer cover, the cable-protecting spring and the pouring sealant of the pressure sensor and the leading-out cable are fixed into a whole after the pouring sealant is solidified, so that the leading-out cable can be firmly connected with a transmitting circuit board always no matter the pressure sensor is used under a severe environment or a vibration environment. Thus, the normal use of the pressure sensor is ensured.

The invention relates to the field of hydraulic engineering pipeline erecting, and specifically discloses a pipeline supporting device for hydraulic engineering. The device comprises a base, a fixing box, a gear guide rod, a fixing platform and three fastening assemblies, wherein the fixing box is fixedly mounted at the upper end of the base; the lower end of the gear guide rod extends into the fixing box, and the upper end of the gear guide rod penetrates through the fixing box and then is connected to the fixing platform; and the three fastening assemblies are fixedly welded on the fixing platform. The device is reasonable in structure design, and high in practicability; a transmission assembly is operated to adjust the height of the gear guide rod, thus the height position of the fastening assembly is changed based on the mounting demand; the operation is simple; the height position is accurately adjusted; in addition, limiting assemblies arranged on the fastening assemblies are capable of further improving the fastening degree of the fastening assemblies to hydraulic engineering pipelines.

The invention relates to a preparation method for a zirconia tube. The method comprises the following steps: firstly, the preparation of ceramic slurry: ceramic powder, microcrystalline wax, polyethylene or polypropylene and oleic acid are fully mixed; secondly, injection molding: suitable particles required for injection molding are produced through a granulating machine, and finally the blank of the zirconium tube of an oxygen sensor is produced; thirdly, low-temperature dewaxing: low-temperature heating treatment is performed for a long term, in order to discharge the paraffine resin adhesive; fourthly, isostatic cool pressing: the stress to the blank is uniform in all directions, in order to eliminate the gap reserved in the blank after dewaxing; fifthly, high temperature sintering: the zirconia tube is sintered. The invention provides a preparation method which can effectively enhance the compactness of the zirconia tube with high rate of finished products.

The invention discloses gypsum-based heat-insulation mortar and a preparation method thereof. The gypsum-based heat-insulation mortar is prepared from the following ingredients in parts by weight: 15to 25 parts of Portland cement, 30 to 40 parts of building plaster, 10 to 20 parts of glass bead, 10 to 30 parts of converter steel slag, 10 to 20 parts of coal ash, 5 to 15 parts of nano silicon dioxide powder, 15 to 25 parts of ash calcium powder, 5 to 10 parts of modified pulpified starch, 2 to 8 parts of dispersible latex powder, 5 to 15 parts of cellulose ether, 3 to 8 parts of crack-resistant fiber, 5 to 15 parts of modified talcum powder, 4 to 10 parts of binder, 0.3 to 0.7 part of air entraining agent, 0.2 to 0.6 part of water repellent, 0.1 to 0.5 part of water reducing agent and 40 to 60 parts of water. The gypsum-based heat-insulation mortar disclosed by the invention has the advantages of high strength, good heat insulation, small drying shrinkage, no easiness in cracking and the like. The gypsum-based heat-insulation mortar can meet a requirement of building industry to mortar performance indexes and can be widely applied to projects of heat insulation and the like of outer walls and inner walls of buildings.

The invention discloses a method for preparing a graphene-ferric oxide-graphene composite structure battery negative electrode material. The method comprises the following steps: preparing graphene loaded Fe2O3 through a first-step pyrolysis method; covering a graphene layer on the surface of Fe2O3 through a water bath method; and finally forming a graphene-ferric oxide-graphene sandwich structure. According to the structure, the electrical conductivity and charge and discharge stability of the ferric oxide can be obviously improved. Meanwhile, the equipment used in the method is simple and easy to realize.

A quilting machine comprises a working platform and a quilting machine head. The quilting machine head comprises a pressing plate pressing a product, a needle frame provided with multiple quilting needles, a thread supplying module supplying quilting threads to the quilting needles and a power system driving the pressing plate, the needle frame and the thread supplying module to be linked, the power system comprises a pressing plate transmission shaft connected with the pressing plate, a quilting transmission shaft connected with the needle frame, a thread supplying transmission shaft connected with the thread supplying module and a main shaft connected with a power source, the main shaft is connected with a middle rotating shaft through a first cam-linkage mechanism, and the middle rotating shaft is connected with the quilting transmission shaft and the pressing plate transmission shaft through an ordinary linkage mechanism and a second cam-linkage mechanism separately. Accordingly, on the condition that the pressing plate keeps pressing the product, the product is sewn through the quilting needles, the tradition of synchronous lifting of the pressing plate and the quilting needles is broken through, the phenomenon that quilting threads on the product obtained after quilting is conducted are likely to loose is avoided, and the compact degree of the quilting threads on the textile product is increased.