118results about How to "Quick bonding" patented technology

The invention discloses a double-component acrylate structure adhesive for bonding electrophoretic coating materials and a preparation method of the structure adhesive, belonging to the technical field of adhesives. The structure adhesive is prepared by mixing a component A with a component B according to a volume ratio of 10 : (0.1-2), wherein the component A comprises acrylate monomers, acrylic resin, strongly acidic monomers, non-polar rubber, flexible rubber, non-polar organic particles, an accelerator, a stabilizer and paraffin; the component B comprises an initiator, a plasticizer, a thickener and pigment. The structure adhesive can be used for effectively bonding and quickly curing electrophoretic coatings, is high in stripping strength and shear strength, and has the characteristics of being convenient to apply, good in room-temperature storage stability and the like; the bonding surface destruction form is cohesive failure of an adhesive layer.

A single-composition room-temperature vulcanized silicone rubber sealant and a preparation method thereof are disclosed. The sealant is composed of the following compositions in parts by weight: (A) 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, (B) 10-30 parts of dimethicone, (C) 5-10 parts of a multi-functionality silane cross-linking agent mixture, (D) 1-5 parts of a silane coupling agent, (E) 50-150 parts of a reinforcing filling material, and (F) 0.1-0.3 parts of a catalyst; and the composition (C) is prepared by mixing the following components in percent by weight: C1, 0-30% of methyltris(methylethylketoxime)silane , C2, 0-30% of vinyltris(methylethylketoxime)silane, and C3, 50-80% of a ketoximinosilane partial hydrolysate. The novel multi-functionality silane mixture is employed as a cross-linking agent, so that the curing speed and the curing initial-stage strength are greatly improved, the dependence of the sealant to environment temperature and humidity is reduced, and the sealant still has relatively good curing speed under the conditions of low temperature and low humidity.

The invention relates to an orthodontic bracket indirect bonding precise positioning system and an application method. The orthodontic bracket indirect bonding precise positioning system comprises a local positioning tray (1), a rear right tooth transfer arch-shaped rod (2), a rear left tooth transfer arch-shaped rod (3) and a front tooth transfer arch-shaped rod (7). The local positioning tray (1) comprises a first single side positioning local tray body (10) and a second single side positioning local tray body (11) which are symmetrically arranged, and a detachable spring ejecting rod (12) is installed between the first single side positioning local tray body (10) and the second single side positioning local tray body (11). By means of the orthodontic bracket indirect bonding precise positioning system and the application method, a bracket can be more precisely arranged; the bonding time is shortened; a patient feels more comfortable, and an upper bracket for intraoral teeth can be easily and quickly bonded clinically. In addition, healthier human engineering is achieved through indirect bonding, three-dimensional control over the teeth can be conveniently achieved, facial form improvement can be better achieved, and a good correction effect can be obtained.

The invention provides a hot melt rubber film for adhering metal and non-polar material and a preparation method of the hot melt rubber film. The hot melt rubber film has the advantage that particular dimer acid copolyamide is prepared according to a corresponding proportion, the hot melt rubber combined with the particular dimer acid copolyamide has good adhering property to a metal material, a polyolefin elastomer has good adhering property to the non-polar material, and a proper amount of compatibilizing agent is added according to a particular ratio, so the prepared hot melt rubber and the rubber film have good compatibility, and the adhering strength of the hot melt rubber film with the metal and the non-polar material is greatly improved.

The invention discloses a railway liner plate for vibration reduction and noise reduction, which relates to the field of railway vibration reduction parts. The railway liner plate for the vibration reduction and noise reduction comprises an upper surface layer and a lower surface layer which are made of 98 to 99.5 parts by weight of viscous resin and 0.5 to 2 parts of expansion microspheres, wherein the viscous resin comprises polyester, polyolefin and liquid rubber, and a shaping temperature of the expansion microspheres is higher than a melting temperature of the viscous resin. The railway liner plate for the vibration reduction and noise reduction has excellent elasticity, high vibration absorption capacity, good damping performance and excellent damping effect, and the absorbed energywhen in stress is large; and the railway liner plate also has the advantages of oil resistance, wear resistance, chemical corrosion resistance, radiation resistance and the like, and is small in compression deformation, high in mechanical strength, good in electric insulation performance and widely applicable to the high-speed railway tracks.

The invention discloses a rotor homopolarity magnetic steel bonding and positioning device. The device comprises a positioning sleeve and a plurality of elastic assemblies, wherein the plurality of elastic assemblies are uniformly arranged along a circumferential direction of the positioning sleeve, each elastic assembly comprises a screw, a tightening block and a spring, the tightening block is arranged at an inner side of the positioning sleeve and is connected with an end part of the screw, the spring sleeves the screw and is arranged between the tightening block and the positioning sleeve, a positioning boss is further arranged at the center of the positioning sleeve, the screw comprises a screw rod and a screw head, the screw rod and the screw head are connected by a square boss, a screw insertion hole is formed in the positioning sleeve and is used for installing the screw, and a square groove is formed above the screw insertion hole and is matched with the square boss. By the device, adjacent magnetic steels repellent to each other can be rapidly and reliably bonded, and the assembly speed and the assembly accuracy are obviously improved. The device is simple in structure, is easy to manufacture and rapid to operate, and can be widely promoted and applied in the technical field of rotor magnetic steel bonding.

The invention relates to a short carbon fiber-reinforced boron carbide composite material and a preparation method thereof. The composite material is prepared from the following components in percentage by volume: 80-99 vt.% of boron carbide and 1-20 vt.% of short carbon fibers. The preparation method comprises the following steps: weighing boron carbide powder and short carbon fibers according toa designed component ratio of the short boron carbide composite material, adding the boron carbide powder and the short carbon fibers into a deionized water solution containing polyethylene glycol, conducting uniform mixing, and carrying out drying treatment to obtain mixed powder; and then filling a graphite mold with the mixed powder, and carrying out spark plasma sintering to obtain the shortcarbon fiber-reinforced boron carbide composite material. The preparation method is simple in process; a prepared sample is high in compactness; toughness is improved to a certain extent on the basisof keeping certain strength; and in addition, the neutron absorption performance of the composite material can be better improved, and the composite material can be better used in a nuclear reactor shielding layer.

The invention provides a low-warpage acrylate adhesive capable of being quickly cured at low temperature and a preparation method thereof, and belongs to the field of adhesive. The problems that afteran existing epoxy resin adhesive is cured, deformation of an adhered object is large and the warpage rate is very high are solved. The low-warpage acrylate adhesive is prepared from, by weight, 20-50% of acrylate resin, 5-20% of diluent, 0.1-7% of curing agent, 1-10% of thixotropic agent, 0.01-1% of polymerization inhibitor, 1-5% of adhesion promoter, 0.5-2% of dye, 20-50% of filler and 1-10% ofrubber. The prepared adhesive can achieve low-temperature fast curing at 110 DEG C for 90s and low-temperature fast curing at 90 DEG C for 10 min, the acrylate adhesive has high bonding strength and low warpage rate, and the acrylate adhesive is suitable for bonding of a temperature-sensitive plastic electronic device and a flexible circuit substrate.

The invention discloses a modified polypropylene hot melt adhesive. The adhesive is prepared from, by weight, 5-30 parts of functionalized modified polypropylene, 50-90 parts of first random copolymerpolypropylene, 5-20 parts of ethylene-alpha-olefin copolymer and 0.05-0.5 part of an antioxidant. The invention also discloses a preparation method of the above modified polypropylene hot melt adhesive. The modified polypropylene hot melt adhesive has high adhesive strength, can quickly conduct bonding and has strong adhesive force especially under low temperature conditions, and can also help toreduce the production cost and improve the production efficiency.

The invention relates to a laminate press-fit production line. The production line comprises a conveying belt, a glue brush-coating mechanism, a press-fit mechanism and a glue removal mechanism, wherein in the movement direction of the conveying belt, the glue brush-coating mechanism is located in front of the press-fit mechanism, the glue removal mechanism is located behind the press-fit mechanism, the glue brush-coating mechanism and the glue removal mechanism are located on one side surface of the conveying belt, and the press-fit mechanism stretches across the upper side of the conveying belt. With the adoption of the production line, a glue brush-coating procedure, a press-fit procedure and a glue removal procedure can be finished, continuous production can be realized, and the production efficiency is greatly improved.

The invention provides a hot-melt pressure-sensitive adhesive and a preparation method thereof. The hot-melt pressure-sensitive adhesive is prepared from 20 to 35 parts of a styrene-isoprene-styrene block copolymer, 5 to 15 parts of an SEBS thermoplastic elastomer, 10 to 20 parts of a liquid polyisobutylene rubber, 10 to 15 parts of a rubber plasticizer, 25 to 35 parts of rosin modified tackifyingresin, 0.5 to 1 part of an antioxidant and 0.3 to 1 part of a coupling agent. The hot-melt pressure-sensitive adhesive is good in adhesion performance, good in high and low temperature resistance andgood in silencing effect and has a tire burst prevention effect on a tire.

The invention relates to an on-site oil tight material for leakage of a transformer and a using method of the material, wherein the material is safe and environmentally friendly, low in cost, simple in process and high in bonding strength. The technical scheme is as follows: the material is characterized by being prepared from two high polymers: a steel enhanced high polymer and a water-oil compatible polymer, wherein the steel enhanced high polymer is prepared from the following raw materials in parts by weight: 6-8 parts of epoxy resin, 0.6-0.7 part of activated silicon micropowder, 2-3 parts of activated aluminum oxide, 2-3 parts of activated iron powder, 0.1-0.5 part of heat resistant, 0.6-0.8 part of flexibilizer, 0.5-1.5 parts of curing agent and 0.6-1 part of accelerant; the water-oil compatible polymer is prepared from the following raw materials in parts by weight: 6.5-8.5 parts of epoxy resin, 1.5-1.8 parts of aluminum oxide, 1.2-1.8 parts of tungsten carbide and 0.5-1.5 parts of silicon carbide. The invention further discloses the using method of the material.

The invention provides double-component water-soluble spraying glue and a preparation method of the double-component water-soluble spraying glue. The spraying glue is prepared from the following components in parts by weight: a component A: 70 to 90 parts of vinyl acetate-vinyl copolymerized emulsion, 8 to 15 parts of epoxy resin, 2 to 10 parts of water-based rosin emulsion, 0.1 to 0.5 part of a de-foaming agent and 1 to 2 parts of a wetting agent; a component B: 2 to 5 parts of an epoxy curing agent and 2 to 5 parts of an isocyanate curing agent; the mass ratio of the component A to the component B is (1 to 3) to 1. The double-component water-soluble spraying glue provided by the invention takes the vinyl acetate-vinyl copolymerized emulsion as a main body raw material; the epoxy resin and the water-based rosin emulsion are added, so that the strength and stickiness of the vinyl acetate-vinyl copolymerized emulsion are improved; water in the emulsion reacts at room temperature by utilizing a water-based curing agent, and the effect of rapidly drying is realized.

The invention discloses a batch production method for carving-customized type ceramic. The batch production method comprises printing a carving design, mounting a printing mould and a printing belt, and accomplishing automatic carving operation on a to-be-carved ceramic cup through rolling contact of the printing belt and the to-be-carved ceramic cup on the printing mould. The batch production method meets needs, on a carving-customized type ceramic cup, of a modern user, is high in production efficiency, and is low in production cost. Quick manufacturing for carving design on the printing belt is realized through visual 3D printing equipment; quick bonding for the printing belt and the printing mould is realized through an automatic glue spraying mechanism; and a rotary circular disc anda rotary carving mechanism are designed to realize batch production and quick carving of the ceramic cup.