59results about How to "Guaranteed water blocking effect" patented technology

The invention provides a flexible display device and a manufacturing method thereof. The flexible display device comprises a flexible substrate, at least two polyimide layers and at least one inorganic film, wherein the at least two polyimide layers are formed on one side of the flexible substrate; the at least one inorganic film is formed between the two polyimide layers, a plurality of protrusions are arranged on one surface of the inorganic film, and gaps among the protrusions communicate with one another to form a plurality of bending stress passages parallel to one another in at least onedirection. According to the flexible display device and the manufacturing method thereof provided by the invention, the bending stress passages matched with the bending direction are arranged on theinorganic film between the first polyimide layer and the second polyimide layer, so that the internal stress between the two polyimide layers during bending in the single direction is relieved, the bending breakage probability when the inorganic film is bent at a relatively large angle is reduced, the internal stress of a flexible organic light-emitting device is improved, the reliability of the flexible organic light-emitting device is guaranteed, and simultaneously, the water blocking capacity of the inorganic film is guaranteed.

The invention discloses a method for preparing a photoelectric composite submarine cable and belongs to the field of preparation methods of cables. The method comprises the process steps of drawing wire, stranding, co-extruding, wrapping, degassing, adding a lead sheath, extruding a polyethylene (PE) sheath, vertical cabling and stranding, stranding optical units, armoring steel wire, sleeving outer sheath, rewinding a finished product and the like. The processes of conductors, insulating wire cores, degassing, pressing lead, extruding the sheath layer, three-core vertical cabling, wrapping, armoring steel wire and the like are connected in series, a joint-free whole large-length three-core photoelectric composite submarine cable is realized. The flexible joint of the large-length three-core photoelectric composite submarine cable is effectively avoided, so that the normal use and the service life of the submarine cable are guaranteed.

The invention provides an array digital analogy integrated signal cable for an offshore oil platform underwater pre-warning system, and relates to the technical field of offshore oil platforms or underwater security and protection facility array signal cables. The array digital analogy integrated signal cable is an integrated cable with strong current analog and digital signals and weak current analog and digital signals in a mixed mode. The array digital analogy integrated signal cable comprises a center reinforcing unit, a seven-core cable unit, a five-core cable unit, a main woven shielding layer, a coaxial-cable unit, an inner protection layer, an armor layer and an outer protection layer. The center reinforcing unit or the coaxial-cable unit is internally provided with optical fibers for transmitting optical signals. The seven-core cable unit is arranged outside the center reinforcing unit, the five-core cable unit and the coaxial-cable unit are arranged outside the seven-core cable unit, the main woven shielding layer is arranged outside the five-core cable unit and the coaxial-cable unit, the inner protection layer is arranged outside the main woven shielding layer, the armor layer is arranged outside the inner protection layer, and the outer protection layer is arranged outside the armor layer.

The invention discloses a dam reinforcement structure and a construction method thereof. The dam reinforcement structure includes a roadway, a to-be-reinforced dam body in the roadway and a reinforceddam body which is located in the roadway and used for reinforcing the to-be-reinforced dam body, the reinforced dam body includes a dam body main body, a dam body top plate, a dam body bottom plate and a dam body side plate, and the dam body main body is connected with the to-be-reinforced dam body. According to the disclosed dam reinforcement structure and the construction method thereof, the reinforced dam body is poured on one side of the to-be-reinforced dam body, the reinforcement action can be achieved on the to-be-reinforced dam body, and an original coal mine underground reservoir iseffectively repaired and reinforced.

The invention discloses a box type water retaining dam for a coal mine underground reservoir. The box type water retaining dam is located between coal pillar dam bodies on the left side and the rightside of a roadway and used for isolating the underground reservoir and the roadway and blocking a water source in the underground reservoir. The box type water retaining dam comprises a main dam bodyand water retaining wings, wherein the main dam body is of a box type structure, the left side and the right side of the main dam body are embedded in the coal pillar dam bodies on the two sides, thetop of the main dam body is embedded in roadway roof surrounding rock, and the bottom of the main dam body is embedded in roadway bottom plate surrounding rock; and the water retaining wings compriseside wings, the side wings are connected with the left side and the right side of the main dam body and arranged along at least the whole height range of the main dam body, the side wings are embeddedinto the coal pillar dam bodies on the two sides to a certain depth, and thus side wing seepage prevention areas are formed. The box type water retaining dam can reduce crippling and water seepage caused by excessive local stress of the surrounding rock at the same time, adjusts differential settlement, prevents the surrounding rock from being softened due to water entering, and ensures the stability and safety of the dam bodies.

The invention discloses a backfilled cofferdam constructed in branched bins of a subsea tunnel and a construction method thereof. The backfilled cofferdam comprises a bottom waterproof curtain, two side surface waterproof curtains, an earth rock cofferdam and a top waterproof curtain, wherein the bottom waterproof curtain extends downwards from the bottom of a foundation pit; the two side surfacewaterproof curtains extend outwards to a side wall of a current bin cofferdam respectively from two side walls of the foundation pit, and two ends of the bottom waterproof curtain are respectively connected to the bottom of one side surface waterproof curtain; the top of a tunnel is backfilled with an overburden layer until reaching a planned seabed elevation, and the earth rock cofferdam is constructed on the overburden layer; and the top waterproof curtain is arranged in the earth rock cofferdam, and extends upwards to the top of the earth rock cofferdam from the top of the tunnel, two endsof the top waterproof curtain are respectively connected to two side walls of the current bin cofferdam, and the tops of the two side surface waterproof curtains are connected to the bottom of the bottom waterproof curtain. According to the backfilled cofferdam and the construction method, branched bin cofferdams are effectively linked, and the waterproof effect and integral stability of the branched bin cofferdams are adequately guaranteed.

The invention discloses a continuous intermittent petroleum jelly filling device and a using method. The continuous intermittent petroleum jelly filling device comprises a supporting mechanism, a sealing mechanism used for sealing a passing cable core is arranged on the inner side of the supporting mechanism, the sealing mechanism is connected with a power mechanism and an injection mechanism, the power mechanism and the injection mechanism are both arranged at the upper end of the supporting mechanism, a control box is arranged on the front side of the supporting mechanism, and a recycling mechanism for collecting filled redundant petroleum jelly is arranged on the portion, located on the lower side of the sealing mechanism, of the inner side of the supporting mechanism. According to the continuous intermittent petroleum jelly filling device and the using method, through rotary sewing of the first sealing plate and the second sealing plate of the sealing mechanism, the passing cable core is intermittently pressed into the cavity formed by the first sealing plate and the second sealing plate to be filled with the petroleum jelly through a suction pump of the injection mechanism, so that the water blocking effect of the cable is guaranteed, meanwhile, the use amount of the petroleum jelly is saved, and the production cost is reduced.

The invention discloses a coating for casting an automobile flywheel shell and belongs to the technical field of the casting. The coating is prepared from the following materials: modified swelling vermiculite powder, modified white corundum powder, electric smelting mullite, corn starch, copal resin, terpene resin, butyl acrylate, isopropyl alcohol, micro wax, polyethylene glycol, polyoxyethylene propyl alcohol amine ether, barium stearate and sodium citrate. The coating prepared according to the invention has the advantages of excellent film-forming property, caking property, high temperature impact resistance and damp-proof air permeability, stable property and high quality; in actual use processes, the normal casting process can be guaranteed by only applying the coating in the dosage being 1 / 4-1 / 2 of the dosage of the traditional coating; and the coating has great popularization and application values.

The invention provides a low-smoke and low-toxicity large-depth longitudinal watertight coaxial cable, which mainly comprises a central conductor unit, a plurality of coaxial inner conductor units anda cable outer sheath, wherein the plurality of coaxial inner conductor units are arranged around the central conductor unit; each of the coaxial inner conductor units and the central conductor unit comprises a conductor layer, an insulating layer, a shielding layer and an inner sheath from inside to outside; each insulating layer is extruded between the corresponding conductor layer and shieldinglayer in a pushing manner; the parts between the coaxial inner conductor units are uniformly filled with cable core water-blocking glue; and the outer sides of the plurality of coaxial inner conductor units are filled with a non-woven outer wrapping tape to be wrapped into the cable, are filled with the water-blocking glue and then are sleeved with the cable outer sheath. The low-smoke and low-toxicity large-depth longitudinal watertight coaxial cable is mainly applied to an underwater large-depth and high-water pressure environment for high-frequency signal transmission, so that the longitudinal water blocking capacity is improved, nonoccurrence of water leakage when the cable is damaged or broken is ensured, radio frequency communication in a deep water environment is ensured, and the low-smoke and low-toxicity large-depth longitudinal watertight coaxial cable has underwater large-depth longitudinal water tightness, has certain flame-retardant property and is low in smoke and low intoxicity during combustion.

The invention discloses a full-medium flexible miniature wear-resistant lead-in optic cable and a manufacturing method thereof. The full-medium flexible miniature wear-resistant lead-in optic cable comprises a sheath, wherein a reinforced layer is arranged in the sheath, a plurality of loose tubes and a central reinforcing part arranged in the central position of each loose tube are coated by the reinforced layer, an optic fiber is arranged in each loose tube, and water resistant compound is arranged between each optic fiber and the corresponding loose tube. The manufacturing method comprises the following steps: (1) the loose tubes are twisted around the central reinforcing parts; (2) one reinforced layer is coated on the periphery of the loose tubes; (3) one layer of sheath is formed on the periphery of the reinforced layer through extrusion. According to the full-medium flexible miniature wear-resistant lead-in optic cable and the manufacturing method thereof, the method is simple, the structure is simple, the application is convenient, the construction cycle and construction cost are greatly reduced, and the water-proof function is realized.

The invention discloses an insulation low-voltage power cable. The insulation low-voltage power cable comprises a solid aluminum conductor, wherein the solid aluminum conductor is arranged at the center of the cable, two semi-circular first solid aluminum lines with same shape structures are transversely extruded outside the solid aluminum conductor, two semi-circular second solid aluminum lines with same shape structures are longitudinally extruded, a low-density polyethylene insulation layer wraps the second aluminum lines in an extruded manner, dual layers of water blocking tapes wraps in a lamination way, a corrugated aluminum sheath is welded outside the water blocking tapes, asphalt is coated on the corrugated aluminum sheath, and finally, a middle-density polyethylene sheath is extruded at the outermost layer of the cable. The insulation low-voltage power cable has the characteristics of good water resistant performance, corrosion resistance, oxidation resistance, good heat resistance, no mechanical damage and the like.

The invention discloses a 0.6 / 1 kV waterproof tensile power cable for shallow seas. The 0.6 / 1 kV waterproof tensile power cable comprises a cable core, wherein the cable core is formed by twisting three fan-shaped phase line cores, a circular ground line and a filling water-blocking strip together; a wrapping belt is wrapped outside the cable core, a low-density polyethylene inner sheath is firstly extruded outside the wrapping belt, and then a thick steel wire armoring layer is tightly wound; two wrapping belts are wrapped outside the thick steel wire armoring layer, then a medium-density polyethylene isolation sleeve is extruded, two water-blocking belts are wrapped outside the medium-density polyethylene isolation sleeve in a stacked manner, a corrugated aluminum sheath is welded outside the water-blocking belt, asphalt is coated on the corrugated aluminum sheath, and finally a medium-density polyethylene outer sheath is extruded on the outermost layer of the cable. The 0.6 / 1 kV waterproof tensile power cable has the characteristics of structure stability, low skin effect, large carrying capacity, good water-blocking performance, corrosion resistance, oxidation resistance and the like, and is widely applied to power transmission between a mainland and an island and between islands as well as power transmission traversing bottoms of rivers, lakes and seas.

The invention discloses an insulated high-voltage optical fiber composite power cable, comprising a solid aluminum conductor in the center of the cable, wherein four first solid aluminum shaped wires and then an annular second solid aluminum shaped wire are extruded outside the solid aluminum conductor; a low density polyethylene insulating layer is extruded outside the second aluminum shaped wire, a double-layer water blocking tape is superposed and lapped, a corrugated aluminum sheath is welded outside the water blocking tape, an alkali-free glass fiber tape is lapped outside the corrugated aluminum sheath, and a medium density polyethylene outer sheath is finally extruded at the outermost layer of the cable; and an optical fiber is arranged in each first solid aluminum shaped wire. The composite power cable has the characteristics of good water blocking performance, good corrosion, oxidation and heat resistance, no mechanical damage and the like, the temperature and the transmission load of the power cable can be monitored in real time, and the power cable can be used for 'three-network fusion'.

The invention relates to the technical field of daily articles, in particular to a heat preservation container. The heat preservation container comprises a bottle body with an opening in the top, a cover body connected with the opening in a threaded manner, and an exhaust lower cover connected to the lower end of the cover body in a clamping manner. An annular mother buckle is arranged at the position of the center of the lower end of the cover body. An annular son buckle matched with the annular mother buckle is arranged on the side, facing the cover body, of the exhaust lower cover. A plurality of gas guide grooves are annularly formed along the axis of the annular son buckle in an array manner. In addition, an exhaust hole is formed in the portion, at the position of the axis of the annular son buckle, of the exhaust lower cover. In addition, an exhaust gasket is arranged in the exhaust hole. Gas circulating routes which are through are formed among the exhaust hole, the gas guide grooves, the cover body and the exhaust lower cover and between the bottle body and the cover body. The exhaust lower cover is axially sleeved with a water blocking ring. In addition, when the cover body and the bottle body are screwed, the water blocking ring is attached to the inner wall of the neck portion of the bottle body.

The invention discloses a double-sheath structured degaussing cable comprising copper conductors which are arranged at the centermost of the cable. An isolation tape extrudes outside the copper conductors. A rubber insulating layer and a rubber internal sheath respectively extrude outside the isolation tape by adopting a double layer co-extrusion mode. Finally an external sheath formed by polyurethane with adding of a hydrolysis resistant agent and thickness of 0.375-0.525mm extrudes outside the rubber internal sheath. The double-sheath structure is adopted, and the external sheath adopts polyurethane material so that marine organism preventing performance of the cable is enhanced. Meanwhile, the cable is great in cable flexible performance, convenient for laying, great in water resistance performance and high in production efficiency of the product.

The invention discloses a production process of an insect pest prevention waterproof power cable. The production process comprises the following steps: S1, preparing a conductor; S2, preparing an insulating layer; S3, preparing a cable core; S4, preparing a waterproof and insect pest prevention co-extrusion layer: longitudinally wrapping the cable core prepared in the S3 with a double-sided aluminum-plastic composite belt, tightening the aluminum-plastic composite belt to a size close to the cable core through a horn mold, heating the aluminum-plastic composite belt through a heating device, and enabling plastic surfaces of the aluminum-plastic composite belt to be mutually adhered and tightly adhered together through the heating device to form a first-step radial waterproof layer; after the cable core is coated with the double-sided aluminum-plastic composite belt, adopting a double-layer co-extrusion extruder for double-layer co-extrusion, wherein an inner layer is made of a polyethylene material, the extrusion nominal thickness is 2.0 mm, the inner layer is used as a second-step radial waterproof layer, an outer layer is made of a nylon material, the extrusion thickness is not smaller than 0.2 mm, and the outer layer is used as an insect pest prevention layer; and S5, preparing an outer protective layer. The cable produced by using the process has longitudinal water blockingperformance and radial water blocking performance, and the physical insect pest prevention characteristic is realized.

The invention discloses a processing method of a fire-resistant water-blocking tape for an optical cable, and relates to the technical field of optical cable processing. The processing method of a fire-resistant water-blocking tape for an optical cable includes the following steps: 1) designing of a water-blocking tape structure; 2) preparation of water-blocking dipping liquid; 3) preparation of water-blocking coating liquid; 4) processing of a water-blocking layer; and 5) processing of a water-blocking tape. The processing method of a fire-resistant water-blocking tape for an optical cable adopts a water-blocking tape with a three-layer structure including a surface layer of alkali-free glass fabrics, a middle layer of needle-punched cotton non-woven fabrics and a bottom layer of non-alkali glass fabrics, and imparts excellent fire resistance to the water-blocking tape while ensuring the water-blocking effect, wherein the surface layer of alkali-free glass fabrics and the bottom layerof alkali-free glass fabrics exert fire resistance, and the middle layer of needle-punched cotton non-woven fabrics exerts water-blocking performance.

The invention discloses a selective chemical water plugging method, and belongs to the technical field of oilfield development drilling. The selective chemical water plugging method comprises the following steps that a temporary plugging agent and a water plugging agent are provided; the temporary plugging agent is injected into an oil sleeve annulus of an oil well; after first setting waiting time, the temporary plugging agent is cured and coagulated; in the curing period of the temporary plugging agent, the water plugging agent is injected into the oil sleeve annulus; well shut-in operation is carried out on the oil well; and after the second setting waiting time, the water plugging agent is solidified and coagulated. According to the selective chemical water plugging method, before the water plugging agent is injected into the oil sleeve annulus, an oil outlet layer is protected by the temporary plugging agent, and the temporary plugging agent can be degraded and recover the infiltration capacity of the oil outlet layer within a certain time after entering the oil outlet layer, so that water plugging is effectively and selectively carried out on the oil well, the water plugging operation procedure is simplified, the cost is saved, the water plugging operation efficiency is improved, and the water plugging effect is guaranteed.

The invention discloses a halogen-free low-smoke flame-retardant cross-linked polyolefin insulated environmental protection cable, which comprises a three-phase cable core, an insulating layer is arranged outside the cable core, and a water-blocking filling layer and a wrapping tape are arranged on the outside of the insulating layer in sequence. and an inner sheath, the inner sheath includes a first inner sheath, the first inner sheath includes a first flame retardant ring and a first water blocking ring, and the first inner sheath is in the direction of the long axis of the cable. The flame retardant ring sleeve and the first water blocking ring sleeve are alternately arranged and connected. It can effectively block moisture from dipping along the cable axis, affect the electrical performance of the cable, and reduce losses at the same time.

The invention discloses an easy-peelable optical cable based on a Module microbeam tube unit and a manufacturing method thereof. The optical cable comprises an outer sheath, a water-blocking tape andat least one Module microbeam tube unit that are arranged from the outside to the inside. The Module microbeam unit includes a module core casing pipe and a cable core; the space between the Module microbeam tube unit and the water-blocking tape is filled with a filler and at least one water blocking yarn is arranged in the filler; a tearing rope is processed on the water-blocking tape; and a reinforcing member is embedded on the outer sheath. According to the invention, the Module micro tube is formed well; the plasticizing effect is good; the tube wall is thin; the peeling is realized easily; the roundness is good and the heat insulation effect is strong.

The invention discloses a material sucking device and filling equipment, and belongs to the technical field of optical cable manufacturing. The material sucking device is used for sucking a material in a packaging bag into a material filling device and comprises a material sucking head and a balancing weight, wherein the material sucking head is of a hollow structure with the side wall being provided with through holes, is arranged in the material in the packaging bag in a buried mode and communicates with the material filling device through a material sucking pipe, and the balancing weight and the material sucking head are connected through a first rope. The filling equipment comprises the material filling device and the material sucking device. The material sucking head is arranged in the material in the buried mode and balanced through the balancing weight, thus the material sucking head can automatically sink along with continuous reducing of the material in the packaging bag to ensure continuous material supplying to the material filling device, and the phenomenon of material discontinuing is avoided.

The invention relates to a waterproof expansion adhesive filling system and method for multi-strand cable conductors or cable cores. The filling method comprises the steps of enabling the multi-strand cable conductors or the cable cores to sequentially penetrate through a wire passing mold, a screw chamber, a machine barrel, an adhesive scraping mold, a diameter fixing mold through a pay-off reel and then to be connected onto a take-up reel; starting an automatic adhesive filling machine so that the machine fills waterproof expansion adhesive into the machine barrel, the take-up reel takes up wires, a motor drives a screw to squeeze and fill the waterproof expansion adhesive into gaps between the multi-strand cable conductors or cable cores, excess adhesive on the surfaces of the multi-strand cable conductors or cable cores is scrapped off through the adhesive scraping mold, the waterproof expansion adhesive is solidified on the multi-strand cable conductors or cable cores through high temperature of a heating device, and the wires are taken up on the take-up reel through the diameter fixing mold. The waterproof expansion adhesive filling system and method for multi-strand cable conductors or cable cores have the effects that the filling of the waterproof expansion adhesive for watertight multi-strand cable conductors or cable cores is realized, the filling uniformity and firmness of the waterproof expansion adhesive are guaranteed through filling and solidification by heating, the waterproof effect of the cable is guaranteed, and the use reliability of the cable is improved. The waterproof expansion adhesive filling system and method for multi-strand cable conductors or cable cores have the characteristics of high filling efficiency, good uniformity, good consistency and the like.

The invention provides an antibacterial cooking utensil which comprises a pot body and a pot cover, the pot cover is provided with an antibacterial sealing ring added with zinc oxide, the antibacterial sealing ring comprises a mounting part located at the upper end and a sealing part in sealing fit with the pot edge of the pot body, and the sealing part comprises a first lip edge and a second lip edge; the first lip edge extends to the upper end of the second lip edge from the lower end of the mounting part towards the outer side of the bacteriostatic sealing ring, the second lip edge extends downwards and towards the inner side of the bacteriostatic sealing ring, and a water retention rough surface is arranged on the inner side surface of the first lip edge and / or the second lip edge so as to bear water entering the sealing part to infiltrate the bacteriostatic sealing ring. The water-retaining rough surface is arranged on the inner side surface of the first lip side and / or the second lip side so as to bear water entering the sealing part to infiltrate the antibacterial sealing ring, zinc oxide in the sealing part can be kept in a moist state no matter after cooking or cleaning is finished, effective bacteriostasis is achieved, and the antibacterial effect of the antibacterial sealing ring is improved.