174results about How to "Reduce surface temperature" patented technology

The utility model discloses an extrusion cooling device for MPP cable protection tube processing, which belongs to the technical field of MPP cable protection tube processing, and is characterized by comprising a base, the top of the base is fixedly connected with a cooling assembly, the top of the base is fixedly connected with a spraying assembly, the cooling assembly comprises a supporting frame, and the supporting frame is fixedly connected with the spraying assembly. The supporting frame is fixedly connected to the top of the base, the sealing heads are fixedly connected to the interior of the supporting frame, the cooling channel is fixedly connected between the opposite sides of the sealing heads, and the cooling pipe is fixedly connected to the interior of the cooling channel. The structure of the pipe is stabilized from the inside through preliminary cooling, stress concentration possibly generated by shock cooling is reduced, and therefore the quality of the pipe is improved, spraying cooling of the pipe is achieved through the spraying assembly, the effect of rapidly reducing the surface temperature of the pipe is achieved, and the pipe rapidly reaches the state close to the normal temperature.

The invention discloses a high-power sliding arc igniter based on a gas-liquid cooling electrode and an operation method of the high-power sliding arc igniter, and relates to the field of high-end equipment, a high-voltage electrode is located at the tail end of an inner-layer sleeve, and insulation between the high-voltage electrode and a low-voltage electrode is achieved through a first cyclone and an insulation interface. Sliding arc discharge is generated by the high-voltage electrode and the low-voltage electrode, a rotary sliding arc is formed under the action of strong rotational flow, and large-area discharge is generated; meanwhile, liquid ammonia is introduced into the high-voltage electrode and the low-voltage electrode, the surface temperature of the electrodes is reduced, the service life of the electrodes is prolonged and higher discharge power is allowed in the liquid ammonia gasification heat absorption process, and gasified ammonia is sprayed out through small-diameter holes and mixed with sliding arc plasmas to form flames. The defects that a high-power sliding arc electrode is high in temperature, short in service life and the like are overcome, and the sliding arc power, the electrode service life and the ignition performance can be greatly improved within the limited size.

The invention discloses cool polyurethane synthetic leather as well as a preparation method and application thereof. The synthetic leather is sequentially composed of a cool polyurethane surface layer, a polyurethane thermal insulation layer, a polyurethane foaming bonding layer and a base material layer from top to bottom, wherein the cool polyurethane surface layer is prepared from the following components in parts by weight: 100 parts of polyurethane resin, 2-4 parts of a wear-resistant additive, 1-2 parts of a curing agent and 1-5 parts of cool color paste; the cool color paste is prepared by mixing 1-10 parts of a microcapsule phase change material, 2-10 parts of an infrared reflection pigment and 40-60 parts of water; the polyurethane heat insulation layer comprises polyurethane resin and hollow silicon dioxide modified by a silane coupling agent. The infrared reflection pigment and the microcapsule phase change material in the cool polyurethane surface layer reduce the surface temperature of the polyurethane synthetic leather. Meanwhile, a heat insulation material in the polyurethane heat insulation layer and a foaming process of the polyurethane foaming bonding layer are combined, so that the cool-feeling polyurethane synthetic leather material which is slowly heated at high temperature in summer is prepared.

The invention relates to the technical field of high polymer materials, and provides a radiation refrigeration coating and a preparation method thereof.The radiation refrigeration coating is prepared from, by weight, 5-20 parts of heat reflection filler, 5-20 parts of heat radiation filler, 5-20 parts of common filler, 0.1-0.5 part of a thickening agent, 10-25 parts of aerogel paste, 0.25-0.75 part of a water repellent agent, 0.2-0.5 part of a defoaming agent, 0.3-1.5 parts of a dispersing agent, 0.1-0.3 part of a pH value regulator and 0.3-1 part of a sterilizing, anti-corrosion and anti-mildew agent, 0.1-0.5 part of a wetting agent, 25-40 parts of an acrylic emulsion, 1-2 parts of an anti-freezing agent, 2-4 parts of a coalescing agent and 15-30 parts of water; the functional coating with both high reflection and radiation refrigeration, provided by the invention, is remarkable in reflective insulation / radiation refrigeration effect, non-toxic, odorless, pollution-free and convenient to construct, and is an ideal decorative material.

The invention provides a sulfate-containing waste liquid treatment system and a sulfate-containing waste liquid treatment method for acrylonitrile and a combination device thereof, the system comprises at least two sets of waste liquid treatment units and a set of flue gas treatment unit, sulfate waste liquid is divided into two strands to enter the two sets of waste liquid treatment units for combustion, waste heat utilization and quenching purification, the discharged sulfur-containing flue gas is collected and enters a set of flue gas treatment unit, the sulfur-containing flue gas subjected to deep cooling, demisting and drying can be directly used for producing high-purity sulfuric acid, and a two-end and one-tail mode is adopted, so that the operation flexibility of the system is improved, and the treatment pressure is reduced. In the waste liquid treatment unit, a high-temperature reaction device adopts segmented air distribution, so that sufficient combustion of waste liquid is ensured, and SO2 loss is reduced; a special temperature field and structural design in the waste heat boiler can prevent the heat exchange device from scaling and blocking; a venturi scrubber is adopted in the quenching purification device to quench the flue gas, and a protective liquid film is formed on the contact interface of the high-temperature flue gas and a liquid phase, so that the temperature of equipment is effectively reduced, and corrosion of the high-temperature flue gas is prevented.

The invention discloses an internal-cooling-based high-frequency coupling window for a high-power cyclotron. The internal-cooling-based high-frequency coupling window is characterized in that an air knife structure is arranged at the atmosphere end of the internal-cooling-based high-frequency coupling window; two groups of conductor choke units with different lengths are arranged on two sides of a ceramic chip of the high-frequency coupling window based on internal cooling, and the two groups of conductor choke units with different lengths are equivalent to two groups of inductors and are used for forming a double-filter circuit of the high-frequency coupling window; a ceramic coating film is arranged on one side of the ceramic sheet of the high-frequency coupling window; according to the air knife structure, more heat on the surface of the ceramic chip is taken away through compressed air; on one hand, the filter unit and the conductor choke unit form a filter circuit of a high-frequency coupling window atmosphere end; according to the invention, the air knife structure is ingeniously utilized, and enhanced cooling is carried out on the ceramic wafer of the coupling window structure; the inductance value of the coupling window is adjusted by using the conductor choke unit, the standing-wave ratio coefficient of the coupling window is reduced, the surface temperature of the ceramic chip is reduced, and the risk of explosion of the coupling window is reduced.

The invention relates to the technical field of polyurethane coatings, and discloses a preparation method of an antibacterial wear-resistant waterborne polyurethane coating, which comprises the following steps: taking concentrated hydrochloric acid, p-phenylenediamine, sodium nitrite, paraformaldehyde, amino-modified nano silicon dioxide and hexamethylene diisocyanate as raw materials; the preparation method comprises the following steps: taking 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide as a raw material, carrying out diazotization coupling reaction, substitution reaction, Mannich reaction and addition reaction to prepare modified polyisocyanate, then taking 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and ((2-aminoethyl) azadiyl) dimethanol as raw materials, carrying out substitution reaction to prepare DOPO-based dihydric alcohol, and carrying out reaction to prepare the DOPO-based dihydric alcohol. Finally, the modified polyisocyanate, DOPO-based dihydric alcohol and polyethylene glycol 400 are used as raw materials, an antibacterial wear-resistant polyurethane emulsion is prepared through a prepolymerization reaction and a chain extension reaction, and the prepared polyurethane coating has good antibacterial, anti-ultraviolet, flame-retardant and wear-resistant properties.

The utility model relates to the technical field of tempered glass processing, in particular to a synchronous water spraying device for tempered glass trepanning processing. The technical problems that according to an existing trepanning machining device, a special drill bit is usually adopted for completing trepanning operation, due to the fact that tempered glass is high in hardness, a large amount of heat can be generated during drilling, a transmission pipe cannot synchronously spray cooling liquid along with the drill bit in time for cooling and heat dissipation, the drill bit can be possibly overheated, and abrasion of the drill bit is aggravated are solved. The drill bit is deformed or fractured, and the product quality is influenced. According to the technical scheme, the synchronous water spraying device for tempered glass trepanning machining comprises a workbench, a machining assembly, a conveying assembly and a positioning assembly. The spraying pipe synchronously sprays water and cools along with drilling of the drill bit, the surface temperature of drilled glass can be rapidly reduced in time, thermal expansion and thermal stress are reduced, glass burst is prevented, the drilling speed is increased, meanwhile, water flow can keep the surface of the glass in a wet state, and glass fragments are reduced.

The invention provides a tunnel type annealing furnace, and relates to the technical field of heat treatment equipment. The tunnel type annealing furnace comprises an annealing furnace body, a conveying device, a heating device, a cooling device, an atmosphere protection device and a temperature control system, the annealing furnace body is of a long-tunnel-shaped structure, and a preheating area, a heating area and a cooling area are sequentially arranged in the annealing furnace body. A heating device is arranged in the heating area, a conveying device is arranged in the annealing furnace body, the cooling area comprises a rapid cooling area and a slow cooling area, the rapid cooling area is arranged at the front part of the cooling area and is close to one side of the heating area, the slow cooling area is arranged at the rear part of the cooling area and is far away from the heating area, and a sectional combined cooling device is arranged in the cooling area; and an atmosphere protection device for controlling a protective atmosphere is also arranged in the heating area. The mode of combining rapid cooling and slow cooling is adopted, so that the cooling process is efficient and uniform, and the thermal stress problem caused by temperature difference can be reduced.

The present invention discloses an injection molding device and molding process of carbon fiber modified nylon, which relates to the field of nylon injection molding, including a base, an upper mold body, an injection port and a mobile controller, wherein an upper mold body is arranged above the base, and an injection port is arranged inside the upper mold body, and a mobile controller is connected to the upper mold body to control the movement of the upper mold body, a lower mold body is arranged below the upper mold body, and a mold core is arranged below the upper mold body, and four groups of lower mold enclosure blocks are arranged inside the lower mold body, and the lower mold enclosure block and the upper mold body cooperate to form a molding cavity, and a horizontal sliding structure is formed between the lower mold enclosure block and the lower mold body. The injection molding device of carbon fiber modified nylon can separate the side of the subsequent product from the mold body in the horizontal direction through the movable arrangement of the lower mold enclosure block, thereby facilitating the demoulding of the subsequent product and avoiding the side of the product from being subjected to greater resistance or being deformed by the top during vertical demoulding.

The embodiment of the invention discloses a rolled steel temperature control method and device, and relates to the field of steel manufacturing process.The rolled steel temperature control method comprises the steps that the overall surface temperature of rolled steel is detected, temperature information corresponding to the overall surface temperature is generated, and the temperature information is sent to a control center; the control center controls front cooling equipment to perform a first-stage cooling process on the rolled steel according to the temperature information, and temperature detection is performed on the rolled steel after the first-stage cooling process; the rolled steel enters temperature adjusting equipment, the temperature adjusting equipment controls the temperature of the rolled steel according to preset temperature information and the temperature of the rolled steel after the primary cooling process, whether the surface temperature of the rolled steel reaches the preset temperature information or not is judged, and judgment information and temperature difference information are generated; and the control center controls the post-cooling equipment to perform secondary cooling on the rolled steel according to the judgment information and the temperature difference information, and performs temperature detection on the rolled steel subjected to secondary cooling, so that the surface temperature of the rolled steel can be accurately controlled through the process.

The invention relates to the technical field of steel and iron materials and preparation thereof, in particular to extra-thick high-strength and high-toughness rack steel for an ocean platform and a manufacturing method of the extra-thick high-strength and high-toughness rack steel. The sum of the mass percent of the V element and the mass percent of the Nb element in the steel plate element composition ranges from 0.09% to 0.12%; the ratio of the mass percent of the V element to the mass percent of the Nb element is controlled to be 2: 1. A heat treatment process of quenching twice after controlled rolling and high-temperature tempering is adopted, a Ni-Cr-Mo alloying component system is utilized, steel of a tempered martensite structure is obtained, the maximum thickness can reach 210 mm, and the finally obtained steel plate has the yield strength larger than 880 MPa, the tensile strength larger than 1000 MPa, the Charpy V-notch impact energy at the temperature of-60 DEG C larger than 170 J and the percentage elongation after fracture larger than 17%. The steel plate is simple in production process, low in cost, good in structure uniformity in the thickness direction and excellent in obdurability matching, and can be used for manufacturing racks for ocean platforms.

The invention discloses a snow melting salt corrosion test device and a test method, the snow melting salt corrosion test device comprises a test box, a spherical temperature and humidity test chamber with adjustable temperature and humidity is arranged in the test box, the spherical temperature and humidity test chamber is composed of a lower hemisphere chamber and an upper hemisphere chamber which can be separated, and a sample placing rack is arranged in the lower hemisphere chamber; a rotary spraying mechanism is arranged above the sample placing frame, the rotary spraying mechanism comprises a semi-arc-shaped support capable of rotating and nozzles uniformly arranged on the semi-arc-shaped support, the sample placing frame is installed on a lifting support capable of ascending and descending, and the lifting support is constructed to be a weighing support with a gravity sensing function. And the lower hemisphere chamber is configured to be a soaking water tank connected with a water supply system. According to the invention, the corrosion process of the snow-melting salt test sample in an icing-melting circulation state can be simulated.

The invention belongs to the technical field of polyurethane coatings, and provides a cellulose nanocrystal enhanced heat-insulating bio-based polyurethane coating and a preparation method thereof, according to the coating, porous cellulose nanocrystals are introduced, and a silicon dioxide film is deposited on the surfaces of the porous cellulose nanocrystals, so that the heat-insulating property, weather resistance and mechanical property of the material are remarkably improved. The castor oil adopted as a bio-based raw material has the advantages of being renewable and environmentally friendly, and the defects of a traditional petroleum-based polyurethane material in the aspects of environmental protection and resource consumption are overcome. Through epoxidation treatment on castor oil, the reaction activity and hydroxyl density of the material are increased, and further fluorination and silanization modification are performed, so that the hydrophobicity, chemical stability and surface energy reduction effect of the coating are effectively improved; the prepared bio-based polyurethane coating has excellent mechanical properties, long-acting weather resistance and an excellent heat reflection effect.

The invention discloses a preparation method of a cement-based artificial lawn blanket, and belongs to the technical field of greening engineering. According to the preparation method, the cement-based artificial lawn blanket comprises three-dimensional mesh cloth, simulated green plants, a cement-based composite material and a packaging layer; the simulated green plant comprises a green leaf part and a grass root part; the preparation method comprises the following steps: S01, preparing the three-dimensional mesh cloth; s02, preparing simulated green plants from low-density polyethylene flame retardant resin, and arranging the simulated green plants in the three-dimensional mesh cloth; s03, pouring a cement-based composite material into the three-dimensional mesh cloth; s04, spraying a packaging layer on the bottom of the three-dimensional mesh cloth; wherein in the step S02, linear low-density polyethylene is used as a matrix for preparing the low-density polyethylene flame retardant resin, and the low-density polyethylene flame retardant resin comprises a composite flame-retardant material composed of an electrodeless flame-retardant material and an organic flame-retardant material. According to the cement-based artificial lawn carpet obtained through the preparation method of the cement-based artificial lawn carpet, simulated green plants are good in flame retardance, and the outdoor color is stable.

The utility model discloses a low-wear micromotor, and relates to the technical field of micromotors. The low-abrasion micromotor comprises a base and an oil injection assembly, a micromotor body is arranged on the base, the oil injection assembly is located on the outer side of the micromotor body, the oil injection assembly comprises an oil box, a spray head, a connecting pipe, an oil tank, a micro pump and a sealing plug, the top of the oil tank is fixedly connected with the connecting pipe, and one end of the connecting pipe is fixedly connected with the oil box; and the inner wall of the oil box is fixedly connected with a plurality of groups of nozzles which are distributed in an annular array. The rotating shaft can be oiled, a layer of lubricating film can be formed between the rotating shaft and a bearing on the micromotor body, the friction coefficient between the rotating shaft and the bearing is reduced, the abrasion degree of mechanical parts is effectively reduced, the service life of the rotating shaft is prolonged, sprayed oil can effectively take away heat generated by friction, the surface temperature of the rotating shaft is reduced, and the service life of the rotating shaft is prolonged. The influence of heat on component materials is reduced, and then the abrasion speed is reduced.

The invention discloses a shielding type fireproof flame-retardant solar photovoltaic cable, and belongs to the field of cables. The cable comprises a conductor, an insulating layer wrapping the outer layer of the conductor, a shielding layer wrapping the outer layer of the insulating layer and a sheath layer wrapping the outer layer of the shielding layer, and the sheath layer comprises crosslinked polyethylene, a fireproof flame retardant, polyether-ether-ketone and 2, 6-di-tert-butyl-4-methylphenol; the shielding layer is of a double-layer structure, and the inner layer and the outer layer are formed by weaving copper wires and tin wires. And the insulating layer comprises crosslinked polyethylene, tricresyl phosphate and zinc oxide. The fireproof flame retardant is added into the sheath layer, so that the fireproof flame retardant performance of the photovoltaic cable can be improved, the fireproof flame retardant performance of the sheath layer can be improved through lignin and triethyl phosphate, and when the photovoltaic cable is in a high-temperature environment, aluminum trihydrate and ammonium bicarbonate are decomposed to generate moisture, so that the flame retardant performance of the photovoltaic cable is improved. Therefore, the surface temperature of the photovoltaic cable is reduced, the combustion of the photovoltaic cable is inhibited, and the generation of smoke is inhibited.

The invention relates to the technical field of textile materials, and particularly discloses a cellulose-based macromolecular eutectic solvent, a preparation method and application in radiation refrigeration fabrics. The cellulose-based macromolecular eutecticevaporate solvent is prepared from carboxylated cellulose nanofibers and betaine in a mass ratio of 4: (1-10), the cellulose-based macromolecular eutecticevaporate solvent can well interact with various textile fibers due to the unique chemical structure and physical properties of the cellulose-based macromolecular eutecticevaporate solvent, and the cellulose-based macromolecular eutecticevaporate solvent can uniformly permeate into the fibers when being used for preparing radiation refrigeration fabrics, so that the radiation refrigeration fabrics have good radiation refrigeration performance. The fiber is effectively modified and functionalized, the original physical structure and mechanical property of the fiber are not damaged, and the flexibility, the air permeability and the wearing comfort of the fabric can be still kept on the basis of improving the radiation refrigeration performance of the fabric, so that the fabric has an efficient cooling function and also has an anti-radiation function. The basic use characteristics of the traditional fabric are not lost, and the application potential of the radiation refrigeration fabric in the field of clothing is widened.

The present application provides a light-emitting keyboard, which comprises a heat-dissipating key, a backlight module, a heat-conducting sheet and a through channel. The backlight module is located below the heat-dissipating key. The backlight module comprises a lamp plate, a light guide plate and a light shielding plate arranged in a stack. The heat-conducting sheet is located below the backlight module. The heat-conducting sheet covers the lamp plate. The through channel is located within the range of the keycap projection area of the heat-dissipating key. The through channel penetrates the light shielding plate, the light guide plate, the lamp plate and the heat-conducting sheet.

The utility model discloses a distance adjusting device for ceramic roller spraying. The distance adjusting device comprises a spraying distance adjusting mechanism, a temperature measuring sensor and a master control module, the spraying distance adjusting mechanism is connected with a spraying gun and can adjust the distance between the spraying gun and a workpiece to be coated, and the temperature measuring sensor can measure the temperature of the surface of the workpiece to be coated. The temperature measuring sensor and the spraying distance adjusting mechanism are in signal connection with the master control module. The temperature measuring sensor is provided with a temperature sensor and used for measuring the surface temperature of a coated workpiece, and the master control module can find the situation that the surface temperature of the ceramic roller is too high through the temperature measuring sensor and control the spraying distance adjusting mechanism to adjust the distance between the spraying gun and the coated workpiece. And the surface temperature of the ceramic roller is reduced to a range in which deformation of the ceramic roller and reduction of the toughness of the net wall are not caused.

This utility model relates to a high-efficiency heat dissipation vehicle display screen, including a display module, a frame, and a flexible heat-conducting component. The display module is disposed inside the frame, and a gap exists between one side of the display module and the frame. The flexible heat-conducting component fills the gap and is in close contact with the display module and the frame to conduct heat from the display module to the frame. This utility model can quickly conduct heat from the edge of the display module to the frame, improving the user experience and extending the lifespan of the display module.

The present invention discloses a high-toughness, flame-retardant non-woven fabric and a preparation method thereof, and belongs to the technical field of non-woven fabric preparation. The present invention is used to solve the technical problem that the preparation process of non-woven fabric materials in the prior art is complicated, and the toughness and flame-retardant properties of non-woven fabrics need to be further improved. A high-toughness, flame-retardant non-woven fabric is obtained by alternately stacking polyurethane spinning membranes and composite polyester spinning membranes to obtain a multilayer spinning membrane with upper and lower surface layers being polyurethane spinning membranes, and then steam hot rolling the multilayer spinning membranes. The present invention synthesizes a composite polyurethane having polyethylene glycol and polysiloxane segments, and then modifies it to prepare a polyurethane fiber membrane, and then stacks it layer by layer with a composite polyester spinning membrane composed of modified polysiloxane and polyethylene terephthalate to prepare a composite non-woven fabric, which not only effectively simplifies the preparation process of the non-woven fabric, but also improves the breaking strength, tensile properties and flame-retardant properties of the non-woven fabric material.

The utility model provides a kind of high-temperature-resistant long-life ball bearing retainer, it is related to bearing retainer technical field, and it includes: hold frame body;The retainer body is annular structure, and ball hole is arranged in annular array shape on the inner wall of retainer body;Annular array shape is arranged in the through hole of the outer wall of retainer body, and the through hole is circular hole structure, and the through hole arranged in annular array shape is jointly composed of the heat dissipation structure of retainer body.Utilize nickel-based alloy high melting point (1300 DEG C above) and strong oxidation resistance, so that retainer is not easy to heat softening or oxidation corrosion failure under high temperature working condition (such as industrial kiln, aeroengine), directly prolongs the service life under high temperature environment;Through type circular through hole forms three-dimensional heat dissipation channel, cooperates the forced convection of lubricating medium (oil / gas), and internal heat is quickly taken away.For example in high-speed motor, airflow passes through through hole can make retainer temperature reduce 20%~30%, avoid local overheating to cause material failure.

This invention relates to the field of twin-screw extruder technology, specifically to a two-part twin-screw extruder barrel electromagnetic heating body, equipment, and system. The electromagnetic heating body consists of two L-shaped main bodies hinged together to form a rectangular structure. A through hole is opened in the middle of the rectangular structure to serve as a space for accommodating the die barrel. The outer shell is made of mica sheet assembled using corner brackets. Its inner surface is lined with radiation-shielding material, and the inside of the radiation-shielding material is lined with thermal insulation cotton. An electromagnetic coil is placed on the thermal insulation cotton. The innermost side is sealed with a thin mica sheet to the electromagnetic coil, thermal insulation cotton, and radiation-shielding material. The electromagnetic coil is electrically connected to an electromagnetic heater. This invention uses electromagnetic heating of the barrel to generate its own heat, avoiding secondary energy waste caused by heat transfer, improving heating efficiency. Compared with resistance wire heating, the power saving rate during normal production can reach 50%, and it also increases production capacity to a certain extent. It also has the advantages of precise temperature control and reduced ambient temperature.

The invention discloses a wear-resistant tensile composite material for rubber gloves and a preparation method thereof, and belongs to the technical field of new materials, the wear-resistant tensile composite material comprises the following raw materials by weight: 80-100 parts of modified rubber, 10-15 parts of a filler, 3-5 parts of a plasticizer, 1-2 parts of an antioxidant, 2-3 parts of a heat stabilizer, 2-3 parts of a lubricant and 5-8 parts of a vulcanizing agent; the prepared expanded particles serve as polymerization base points of modified polyborosilicate rubber, promote fracture of disulfide bonds in modified ternary rubber and serve as radiation absorption centers to promote crosslinking of the expanded particles and the modified ternary rubber, the mechanical performance of the material is improved, a glassy protective layer is generated by a silicon-boron structure of the expanded particles in the combustion process and covers the surface of the material, and the service life of the material is prolonged. And carbonization of organic matters is promoted, so that the material forms a heat-insulating carbon layer, and the flame retardant property of the material is improved.

The utility model relates to the technical field of round wire welding strip blackening, in particular to round wire welding strip blackening equipment which comprises a shell, guide rollers arranged at the upper end and the lower end of the left side and the right side in the shell, an immersion inner cavity formed in one end in the shell, an operation box arranged on one side of the shell, and a drying box arranged above the operation box. A circulating fan is arranged on one side of the drying box, a forming grinding tool is arranged above the shell, clamping grooves are formed in the left side and the right side of the guide roller correspondingly, mounting sliding grooves are formed in the four end faces outside the clamping grooves correspondingly, connecting shafts are arranged on the left side and the right side of the guide roller correspondingly, and mounting sliding blocks are fixedly arranged on the four end faces outside the connecting shafts correspondingly; the mounting sliding blocks are clamped into the mounting sliding grooves in a sliding mode, the connecting shafts are fixedly sleeved with clamping plates, and the clamping plates are clamped into the clamping grooves. According to the automatic blackening equipment for the round wire welding strip, the subsequent working efficiency is improved through automatic operation equipment, time and labor are saved, and the blackening process of the round wire welding strip is greatly enhanced.

The invention discloses a waterproof barrier adhesive tape in an aircraft cabin and a preparation method thereof, and relates to the technical field of adhesives. When the waterproof barrier adhesive tape in the aircraft cabin is prepared, graphene oxide sequentially reacts with 2, 5-dimethyl-2, 5-hexanediol and 5-amino-4-imidazole formamide, and modified graphene oxide is prepared; the pre-modified polysiloxane is subjected to a reaction with dimethyl phosphorus and 1, 2-epoxy chlorobutane in sequence, and functional polysiloxane is prepared; the preparation method comprises the following steps: reacting polycarbonate diol, polyethylene glycol, hydroxyethyl methylacrylate, isophorone diisocyanate, 4, 5-bis (hydroxymethyl)-2-phenyl-1H-imidazole and bis (hydroxymethyl) phenylphosphine to prepare polyurethane particles, and carrying out extrusion casting to form a film; mixing a polyacrylate emulsion, functionalized polysiloxane and modified graphene oxide, coating a polyurethane film with the mixture, and drying to obtain the waterproof barrier adhesive tape in the aircraft cabin. The prepared waterproof barrier adhesive tape in the aircraft cabin has a good bonding effect and a good flame retardant effect.

The utility model relates to the technical field of film making machines, in particular to a drying oven suitable for a U-shaped film making machine, which comprises an oven body, a drying area is arranged in the oven body, a detachable area partition plate is horizontally arranged in the drying area, the area partition plate divides the drying area into an upper drying area and a lower drying area, one end of the upper drying area is a material wet film input end, and the other end of the upper drying area is a material wet film output end. One end of the lower drying area is a to-be-dried material film input end, the other end of the lower drying area is a material dry film output end, the material wet film input end and the material dry film output end are located on the same side, and the upper end face and the lower end face of the mounting plate are each provided with a plurality of carrier rollers for conveying material films. And air outlets for conveying dry hot air are formed in the top and the bottom of the drying area. The drying device has the beneficial effects that the space utilization rate is high, the occupied area of equipment is small, and the drying efficiency is high.

The utility model discloses a motor heat insulation protection device which comprises a first protection frame, a second protection frame is installed on the end portion of the first protection frame, a splicing frame is fixedly installed on the side wall of the end portion of the first protection frame, and meanwhile a splicing seat is fixedly installed on the side wall of the end portion of the second protection frame. The splicing seat is mounted in the splicing frame and is fixed through bolts; the second protection frame and the first protection frame are consistent in composition structure, the second protection frame comprises a blocking protection plate, and a connecting protection plate is installed at the end of the blocking protection plate. According to the motor heat insulation protection device, the first protection frame and the second protection frame are spliced together to form a shape like a Chinese character'ji ', and the device covers the outer side of a motor, so that the motor can be shaded, the surface temperature of the motor in summer is reduced, and the situation that the motor of a large compressor unit is damaged due to too high temperature can be avoided. And the interlocking protection bumping condition is avoided.