67results about How to "Easy to fill gaps" patented technology

The invention discloses a high-speed low-shrink low-smoke zero-halogen tight-buffered material used for a 4G optical cable and a preparation method of the high-speed low-shrink low-smoke zero-halogen tight-buffered material. The tight-buffered material is composed of the following raw materials in parts by weight: 30-60 parts of ethylene-vinyl acetate copolymer, 10-20 parts of linear low density polyethylene, 20-30 parts of high density polyethylene, 10-30 parts of compatilizer, 100-150 parts of filler-type flame retardant, 25-60 parts of synergistic flame retardant, 1-2 parts of silane coupling agent, 2-5 parts of ultra-high molecular weight silicone master batch, 0.5-1 part of amides high-performance lubrication dispersant and 0.2-0.5 part of compound antioxygen through stirring, mixing and extruding steps. The tight-buffered material prepared by elaborate formula selection and processing is low in shrinking percentage, strong in rigidity, high in hardness, high in extrusion molding speed, low in rejection rate and good in high / low temperature cycling resistance. When the tight-buffered material is processed, die orifice stacking and salivation are less, the surface of the optical cable is smooth, fine and particle-free, and the tight-buffered material is easy to peel.

The invention discloses a manufacturing method for a multilayer thick copper circuit board and a manufacturing method for a two-sided thick copper circuit board. The manufacturing method for the multilayer thick copper circuit board comprises the steps of enabling every two of N layers of thick copper plates to undergo press fit through strippable adhesion pieces to form N / 2 thick copper plate groups; performing primary two-sided etching on every thick copper plate group, and enabling the primary two-sided etching depth to be smaller than the thickness of every layer of thick copper plate of the thick copper plate groups; utilizing press fit adhesion pieces to perform primary press fit on the thick copper plate groups after the primary two-sided etching, separating every two layers of thick copper plates of the thick copper plate groups, enabling every two adjacent layers of thick copper plates in the thick copper plate groups to form (N / 2-1) inner layer plates, and enabling two independent layers of thick copper plates to respectively form outer layer copper; performing secondary two-sided etching on every inner layer plate, and enabling the secondary two-sided etching depth to be equal to the difference between the thickness of every layer of thick copper plate and the primary two-sided etching depth; utilizing press fit adhesion pieces to perform secondary press fit on the inner layer plates and the outer layer copper after the secondary two-sided etching; and performing two-sided etching on the outer layer copper for a third time.

The invention discloses a household socket. The household socket comprises a socket box, wherein an insertion surface butted with a plug is arranged on the socket box; a cover body is also arranged onthe socket box; a protection layer is arranged on the inner wall of the cover body. The protection layer is prepared from the following components in parts by mass: 20-30 parts of organosilicone modified epoxy resin, 10-15 parts of a polyvinyl acetate emulsion, 0-15 parts of a plasticizer, 2-4 parts of a flame retardant, 5-8 parts of diatomite, 1-3 parts of pigments and fillers, 5-7 parts of a silane coupling agent, 4-6 parts of a curing agent, 0.5-1 part of a flame-retardant synergist, 0.1-0.5 part of an antioxidant and 0.2-0.4 part of composite rare earth. The flame-retardant treatment process is simple and is easy to operate; the treated socket has extremely high flame resistance; the service life of the socket is prolonged; and the cost is reduced.

The invention discloses an anticorrosive high-speed gear case and a preparation method thereof. The surface of the high-speed gear case is coated with a layer of an anticorrosive coating which is prepared by compounding a component A and a component B according to a ratio of 2: 1. The component A comprises, by mass, 22 to 26 parts of organosilicon-modified epoxy resin, 25 to 28 parts of pigment, 10 to 13 parts of a filling material, 9 to 13 parts of a plasticizer, 4 to 8 parts of a dispersing agent, 20 to 23 parts of itaconic acid, 19 to 25 parts of a film-forming aid, 9 to 14 parts of an antifoaming agent and 11 to 14 parts of active carbon. The component B comprises, by mass, 18 to 24 parts of polyphenyl ether resin powder, 13 to 16 parts of styrene butadiene rubber, 13 to 18 parts of toluene, 6 to 10 parts of a plasticizer, 8 to 11 parts of a leveling agent, 11 to 14 parts of silica, 9 to 15 parts of a coupling agent, 2 to 4 parts of an auxiliary material, 45 to 49 parts of water and 9 to 15 parts of a fire retardant. The anticorrosive high-speed gear case is reduced in a rejection rate and production cost and improves work efficiency.

The invention discloses a flow meter with a protective hood, comprising a flow meter head and a flow tube that is of hollow tubular structure. The flow tube is composed of a liquid incoming tube and aliquid outgoing tube, and the flow meter head is positioned in the middle of the flow tube along the length direction; the flow meter also comprises a filter and the protective hood, the filter is releasably arranged at an inlet of the liquid incoming tube, and the protective hood sleeves the flow meter. The invention also designs a mounting method of the flow meter with the protective hood; themounting method is simple and feasible and is time efficient, and the flow meter is simple and compact in structure, convenient to mount and demount, and long in service life.

The invention discloses a compressor for a refrigeration system. The compressor comprises a shell and a cylinder, wherein the cylinder is arranged in a shell; a through hole is formed in the side wallof the shell; a protective layer is arranged on the outer wall of the shell. A refrigeration device disclosed by the invention is simple and compact, and good in wear resistance effect, and a reinforcing process is simple and feasible; the reinforced refrigeration device is higher in wear resistance performance, and the service life of the refrigeration device is prolonged.

The invention provides to a magneticfluid sealing device applied to an electric push rod. The magnetic fluid sealing device comprises a positioning piece, a dustproof sealing ring, a first magnetic conductive pole shoe, a non-conductive magnet, a second magnetic conductive pole shoe, and a permanent magnet, wherein the dustproof sealing ring is arranged at the front part of the positioning piece; the permanent magnet, the first magnetic conductive pole shoe and the second magnetic conductive pole shoe are arranged in the positioning piece in parallel; the first magnetic conductive pole shoe and the second magnetic conductive pole shoe are separated through the non-conductive magnet; pole teeth and sealing ring grooves are arranged / formed on / in the inner annular surface of the first magnetic conductive pole shoe and the inner annular surface of the second magnetic conductive pole shoe, and the pole teeth are filled with magnetic fluids. The magnetic fluid sealing device disclosed by the invention is mainly applied between a push rod and an outer sleeve to isolate water, air and pollution damaging factors, and effective waterproof and dustproof effects are achieved.

The invention discloses a flowmeter provided with a protective cover. The flowmeter comprises a flowmeter head and a flow tube, wherein the flow tube is of a hollow tubular structure and consists of aliquid inlet tube and a liquid outlet tube which are communicated, the flowmeter head is located in the middle of the flow tube in the length direction, and the flowmeter head is externally sleeved with the protective cover. The flowmeter is simple and compact in structure, convenient to install and disassemble and long in service life and has good waterproof performance.

The invention discloses a wear-resisting valve. The wear-resisting valve comprises the following components which include, by mass, 0.18-0.3% of C, 0.6-1.1% of Si, 1.0-1.9% of Mn, 0.05-0.2% of Cr, 0.01-0.05% of Nb, 0.1-0.3% of Mo, 0.03-0.05% of Cu, 0.15-0.17% of Ti, 0.01-0.03% of V, 0.1-0.2% of rare earth elements, and the balance Fe and trace impurities, and the sum of all the components is 100%.The rare earth elements comprise, by mass, 5-7% of Pr, 10-13% of Sm, 2-4% of Ce, 10-13% of Lu, 15-18% of Eu and the balance La. The invention further designs a heat treatment technology of the wear-resisting valve. The technology is simple and easy to implement, the cost is low, and the valve obtained after heat treatment is excellent in performance and has good wear resistance.

The invention discloses a high-temperature-resistant intelligent vehicular charger. The high-temperature-resistant intelligent vehicular charger comprises a shell and a main circuit board arranged inside the shell and is characterized in that each of the inner surface and the outer surface of the shell is provided with a protecting layer, and each protecting layer comprises acrylic resin, poly(phthalazinone ether sulfone ketone) modified resin, polyvinyl methyl ether, fluorinated graphene, talcum powder, chlorinated paraffin, a stabilizer, an ADC foaming agent, silicone oil, a composite flameretardant, a chain extender, a neutralizing agent, a catalyst and rare-earth elements. The charger is good in high-temperature resistance, long in service life and capable of lowering cost.

The invention discloses a supporting rod used for an automobile hood. The supporting rod used for the automobile hood mainly comprises a supporting rod body and the supporting rod body comprises the following components, in percentage by mass, 0.18-0.19% of C, 0.3-0.5% of Cu, 0.01-0.03% of Ti, 0.003-0.005% of B, 0.6-1.1% of Si, 1.0-1.9% of Mn, 0.05-0.08% of Cr, 0.01-0.03% of Nb, 0.01-0.02% of V, 0.04-0.06% of Fe, 1-3% of molybdenum disulfide, with the balance being Al and inevitable impurities. The sum of the above components is 100%. The supporting rod is good in wear resistance and capable of prolonging the service life and lowering the cost.

The invention discloses an automobile heat radiator protection grid which comprises the following components: polypropylene, PVC (Polyvinyl Chloride), a polyvinyl fluoride resin, a lubricant, glass beads, a plasticizer, a silane coupling agent, packing, a maleic anhydride-styrene solid resin, silicon carbide micro powder, carbon monofluoride and a rare-earth composite stabilizer. The invention further designs a processing process of the automobile heat radiator protection grid. The processing process is simple and feasible, and the heat radiator protection grid treated with the process is goodin property, long in service life and low in cost.

The invention discloses a corrosion-resistant air cooler. The corrosion-resistant air cooler is characterized in that the corrosion-resistant air cooler comprises an air cooler shell, a draught fan, arefrigerant circulation system and a control module. The draught fan and the refrigerant circulation system are arranged in the air cooler shell. The control module is used for controlling the draught fan and the refrigerant circulation system. The air cooler shell comprises, by mass percentage, 8-10% of Al, 1-3% of Mn, 0.18-0.3% of C, 0.05-0.1% of Cr, 0.01-0.05% of Nb, 0.01-0.03% of Cu, 2-5% ofSr, 0.0002-0.005% of Nb, 0.005-0.008% of N, 0.0002-0.005% of S, 0.5-0.8% of Zn, 1.5-1.8% of Si, 3-5% of Ca, 0.5-0.8% of Ti, 0.3-0.5% of Ni, 0.002-0.004% of B, 0.1-0.4% of V, 0.5-0.8% of a rare earth element and the balance Fe. The invention further designs a reinforcing process of the corrosion-resistant air cooler. The air cooler is simple and compact in structure and good in corrosion resistingeffect; the service life of the air cooler is prolonged; and the cost is lowered.