115results about How to "Not easy to hang" patented technology

The invention provides hard wax oil prepared from the following components in parts by weight: 40-80 parts of vegetable oil, 3-15 parts of biological wax, 5-15 parts of rosin glycerol resin, 0.2-1.0 part of drier, 0.1-0.5 part of anti-skinning agent, 0.1-0.3 part of mixed UV (Ultra-Violet) absorber and 0.1-0.3 part of defoaming agent. The preparation method of the hard wax oil, which is provided by the invention, comprises the steps of generating bodied oil with relatively smaller molecular weight under the action of nitrogen protection and adding an oil-based UV absorber with synergy and a hindered amine light stabilizer, and thus the UV absorption performance of the hard wax oil is improved. The prepared hard wax oil is suitable for outdoor woodenware products, has good weatherability, favorable water resistance and ideal durability effect under the condition that sunlight and UV rays exist, and the hard wax oil hardly sags and has tough firm formed in coating construction, belongs to natural coatings, accords with the environmental protection requirement and can be also used for decorating private indoor rooms.

The invention belongs to the technical field of sealants, and specifically to a diatomite chloroprene type sealant. The diatomite polychloroprene type sealant is prepared by carrying out milling and kneading the following materials according to a formula, wherein the materials comprise chloroprene rubber, butyl rubber, natural rubber, diatomite, a reinforcing agent, a filler, a viscosity regulator, a vulcanizing agent, a stabilizer and other commonly used additives. According to the present invention, the diatomite has a special structure and physical properties, the other raw materials in the formula are reasonably selected, the ratio is appropriate, and the diatomite chloroprene type sealant has characteristics of good anti-aging performance, good weather resistance, strong heat resistance, strong wear resistance, rare sagging, good surface smoothness, environmental protection, and long service life, and can be used for family decoration and other fields.

The present invention relates to paint industry technology, and is especially one kind of fluoric water-base paint. The fluoric water-base paint consists of fluorocarbon emulsion 20-90 wt%, supplementary emulsion 1-25 wt%, pigment 5-20 wt%, stuffing 1-31 wt%, dispersant 0.1-1.4 wt%, defoaming agent 0.1-0.3 wt%, wetting agent 0.3-0.5 wt%, bactericidal anti-mildew agent 0.1-0.3 wt%, filming assistant 0.01-13.5 wt%, thickener 0.01-1.1 wt% and multifunctional assistant 0.3-0.5 wt% except water. The paint has high weather resistance, high chemical corrosion resistance, antifouling property, high performance / cost ratio and other advantages.

The invention discloses aqueous silver powder amino baking paint and a preparation method thereof. The aqueous silver powder amino baking paint is prepared from the following components in parts by mass: 60 to 70 parts of aqueous hydroxyl acrylic emulsion, 0.2 to 0.4 part of a pH regulator, 0.3 to 0.5 part of an anti-foaming agent, 1 to 3 parts of film-forming auxiliaries, 0.2 to 0.5 part of a wetting agent, 0.2 to 0.5 part of a leveling agent, 0.5 to 1.2 parts of a thickening agent, 10 to 20 parts of deionized water, 5 to 7 parts of gonyar amino part methylated amino resin, 5 to 8 parts of aqueous silver powder, and 5 to 8 parts of co-solvents. The aqueous silver powder amino baking paint is safe and environment-friendly, has low VOC content, is high in drying speed, and is good in glossiness; and the paint film is good in glossiness and has a good metal effect.

The invention discloses an environment-friendly PE gloss black piano lacquer, which comprises a main agent, a diluting agent, an accelerating agent and an initiator, wherein the main agent mainly comprises the following components in portion by weight: 75 to 85 portions of unsaturated polyester finishing paint resin, 0.2 to 0.5 portion of wetting dispersing agent, 0.8 to 1.1 portions of carbon black, 4 to 6 portions of hexamethoxymethyl melamine resin, 0.3 to 0.6 portion of anti-sagging agent, 0.02 to 0.04 portion of polymerization inhibitor, 0.2 to 0.4 portion of butanone, 13 to 17 portions of styrene, and 0.2 to 0.4 portion of levelling agent; the diluting agent mainly comprises 100 portions of the styrene; the accelerating agent contains 100 portions of cobalt naphthenate solution with6 percent of Co<2+>; and the initiator contains 100 portions of butanone peroxide solution with 10 percent of active oxygen. The environment-friendly PE gloss black piano lacquer can obtain a bright film coating without polishing, has better mechanical properties and fullness, is difficult to have cooling cracks, can solve the problem of northward transportation of south musical instruments, and simultaneously completely uses active diluting agent and is very favorable for environmental protection.

The invention discloses waterborne acrylic anticorrosive coating containing asphalt and a preparation method thereof. The waterborne acrylic anticorrosive coating containing the asphalt is prepared from the following components in parts by weight: 0 to 10 parts of de-ionized water, 0.1 to 0.5 part of a wetting agent, 0.1 to 0.5 part of a dispersant, 0.3 to 1 part of a de-foaming agent, 30 to 50 parts of waterborne acrylic resin, 20 to 40 parts of filling, 0.02 to 0.5 part of a pH (Potential of Hydrogen) regulator, 0.1 to 1 part of a mildew preventive, 10 to 40 parts of emulsified asphalt, 2 to5 parts of a film-forming auxiliary agent and 0.3 to 1 part of a thickening agent. The waterborne acrylic anticorrosive coating disclosed by the invention takes the waterborne acrylic resin as a mainfilm-forming substance and the waterborne acrylic resin is matched with the emulsified asphalt and the functional auxiliary agent to carry out reasonable formula designing, and then the environment-friendly and efficient anticorrosive coating is prepared. The anticorrosive performance of the anticorrosive coating is as good as that of a traditional solvent type asphalt anticorrosive coating product; other performance indexes reach national or industrial standards.

The invention belongs to the technical field of building materials, and provides a novel high-temperature-resistant non-curing waterproof coating. The coating is composed of the following components in percentage by weight: 25-35% of asphalt, 15-30% of rubber oil, 10-20% of waste tire rubber powder, 5-10% of styrene-butadiene rubber, 1-3% of styrene-butadiene-styrene (SBS), 4-10% of tackifying resin, 10-20% of fly ash, 2-5% of a high-temperature modifier and 2-5% of a viscosity reducer, wherein the high-temperature modifier is a BL modifier or polyamide wax. The preparation method is carried out by adopting a three-section-type feeding method and comprises the following steps: adding asphalt and rubber oil, carrying out heating to 150 DEG C, then adding the SBS, the styrene-butadiene rubber, the tackifying resin and the viscosity reducer, carrying out heating to 180 DEG C, then adding the fly ash and a high-temperature modifier, mixing the components at 180 DEG C to form a uniform liquid, and carrying out cooling and discharging to obtain the novel high-temperature-resistant non-curing waterproof coating. The invention solves the problem that a non-curing rubber asphalt waterproofcoating is poor in heat resistance.

The invention discloses a high dirt resistance emulsion paint and a preparation method and an application thereof. The preparation method of the invention comprises the following steps: preparing epoxy resin emulsion modified with organic silicon by the reaction of organosiloxane monomer and epoxy resin; then reacting the mixture of emulsifier, initiator and acrylic monomer until appearing blue color, adding epoxy resin emulsion modified with organic silicon and initiator to obtain modified acrylic acid emulsion; mixing the modified acrylic acid emulsion with film forming additive, pigment, filler and additive to obtain the high dirt resistance emulsion paint of the invention. The emulsion paint viscosity scope of the high dirt resistance emulsion paint is 2000-4000MPa.s / 25 DEG C and the emulsion paint has excellent scratch resistant property, wear-resisting property and adhesiveness. The preparation method of the invention is simple; in the practical preparation process of emulsion paint, the amount of the added film forming additive is reduced effectively and no other stain repellent needs to add, thus reducing the cost and benefiting to the environmental protection.

The invention belongs to the technical field of textile engineering and provides a refining technology of silkworm oil rotten cocoons. The refining technology of the silkworm oil rotten cocoons is achieved through the following steps: primary refining cocoon boiling, biological decay, washing and dewatering, immersion cleaning, washing and dewatering, scouring and bleaching, washing and dewatering, secondary refining, washing and dewatering, softening, drying and cotton opening. By means of the refining technology, the biological decay enables silk fibers of the oil rotten cocoons to be fully dissociated and then mutually adhered together, accordingly short fibers are not prone to be omitted during later cocoon opening process, needle rollers are convenient to be hung, and use ratio of the silk fibers is improved. By adopting reasonable proportioning of various auxiliaries during different procedures, such as boiling refining, decaying, scouring and bleaching, damage to the silk fibers from chemical auxiliaries is reduced to the largest extent, oil removing effect is improved, sericin protective layers outside fibroins are reasonably protected, strength of the silk fibers is protected, comprehensive use ratio of oil rotten cocoons is improved, and the refining purposes including oil removing, rubber retaining, and fiber tensile force protection are achieved.

The invention relates to latent-curing conductive paste and a method of forming an electrode on a substrate thereby. The latent-curing conductive paste comprises low-melting-point thermoplastic polymer, conductive particle, glass powder, curing reaction agent, curing catalyst and auxiliaries. The low-melting-point thermoplastic polymer is solid or jelly at room temperature, melts into liquid at 35-85 DEG C, and starts curing reaction with the curing reaction agent under the action of the curing catalyst in the temperature range of from 85 DEG C to 160 DEG C. To form the electrode on the substrate by the latent-curing conductive paste, post-printing low-temperature curing is needed. Compared with the prior art, the latent-curing conductive paste is well resistant to medium temperature after printing and curing, so that environmental temperature sensitivity of the conventional hot-melt conductive paste after printing is effectively overcome and printed pattern can be well kept. The latent-curing conductive paste is especially suitable for solar cells.

The invention discloses a top-hung casement opening outwards with hidden foldable window screens. The top-hung casement opening outwards comprises a top-hung casement opening outwards body, a top-hung casement opening outwards main body, the foldable window screens, multiple keels and a strip magnet. The top-hung casement opening outwards body comprises a window frame. A lower-end border and two side borders of the window frame are provided with a U-shaped containing groove. An upper-end border of the top-hung casement opening outwards main body is hinged to an upper-end border of the window frame. When the top-hung casement opening outwards main body is in contact with the window frame, the lower-end border and two side borders of the top-hung casement opening outwards main body are buckled to the opening of the U-shaped containing groove in a cover shape. The foldable screens are arranged in the U-shaped containing groove and comprise two fan-shaped side window screens and one main rectangular window screen. The two fan-shaped side window screens are arranged between the two side borders of the window frame and the top-hung casement opening outwards main body. The main rectangular window screen is arranged between the lower-end border and the top-hung casement opening outwards main body. The multiple keels are magnetic. The strip magnet is arranged in the bottom of the U-shaped containing groove. The top-hung casement opening outwards is simple in structure and convenient to use, and the hidden foldable window screens are easy to clean.

The invention discloses anti-sagging polyurethane white finish. Main paint of the polyurethane white finish comprises the following components in parts by weight: 35-50 parts of short oil alkyd resin, 40-55 parts of titanium dioxide slurry with mass concentration of 60%, 5-8 parts of talcum powder, 0.1-0.5 part of polyether modified silicone oil leveling agent, 0.5-5 parts of fumed silica and 1-2 parts of solvent. Through the mixing of the components, the polyurethane white finish provided by the invention has proper surface tension and avoids frequent sagging and base exposure; and moreover, under the effect of surface tension, the paint film can be converted from an uneven surface into an even one.

The invention discloses an engineering fence. The engineering fence is technologically characterized in that the engineering fence comprises hollow columns, a protection plate and clamping devices; sliding grooves are formed in the upper end and the lower end of each column; and each clamping device comprises an upper clamping slot which is connected with the sliding groove at the upper end of corresponding column in a sliding mode and is open downwards, an lower clamping slot which is connected with the sliding groove at the lower end of the corresponding column in a sliding mode and is open upwards, an upper rack vertically arranged at the upper end of the interior of the corresponding column, a lower rack vertically arranged at the lower end of the interior of the corresponding column, a transmission gear which can be engaged with the upper rack and the lower rack simultaneously, a rotary shaft with one end penetrating into the column which is connected to the transmission gear, a limiting gear arranged on the end, penetrating out of the column, of the rotary shaft, a driving piece used for driving the rotary shaft to rotate, and a limiting assembly used for limiting rotation of the limiting gear. The engineering fence solves the problem that an existing engineering fence is unsafe in use.

The invention relates to a radar wave-absorbing coating for rapid construction and a preparation method and application thereof, and belongs to the field of the coating with the electromagnetic wave absorbing function. The radar wave-absorbing coating is prepared from radar wave-absorbing agent, a resin matrix, a filling agent, an anti-settling agent, a curing agent and a solvent. The preparationmethod comprises the following step that the above raw materials are mixed according to the matching ratio. The radar wave-absorbing coating has the following advantages that the coating is not easilysagged after being sprayed, the surface dry speed is high, the curing cycle is short and the low-temperature adaptability is good. Moreover, the radar wave-absorbing coating is excellent in mechanical property and good in radar wave-absorbing property, the problem that the construction speed and the mechanical property of an existing radar wave-absorbing coating are difficultly taken into accountsimultaneously can be solved, and the engineering applicability of the coating is improved. The preparation method is simple in process, low in cost and simple and rapid in process control. The wave-absorbing materials are used in aviation or aerospace or electromagnetic -protection or electromagnetic-shielding products, the construction period can be effectively shortened, and the coating has abroad development prospect.

The invention relates to an automatic magnetic check valve, which comprises a cover body, an upper magnet, a valve body, a shaft seat, a valve, a lower magnet and a sealing ring, wherein the shaft seat is arranged on one side of the bottom of the valve body; the valve is hinged on the shaft seat; the upper magnet is arranged on the valve body; the lower magnet is arranged on the valve; the sealing ring is arranged between the valve and the valve body; and the upper magnet and the lower magnet are in a Z-plane asymmetric structure. When asymmetric magnets attract each other, an Fx component force not equal to zero is generated, the consistency of the repeated opening / closing action of the valve is greatly improved under the action of the Fx, and the valve is closed to be accurately attracted and sealed; the valve body has a high flow structure, so that an effective area of fluid flowing through the valve body is greatly improved; the valve body is hardly wound with hair and cotton and is cleaning-free; the valve can realize 90-degree opening in a circular pipeline, the drainage is not hindered and the flow velocity is high; and the overflow of sewage is prevented, polluted air, insects and cockroaches are prevented. The check valve is conveniently arranged at a sewage pipeline to replace the conventional water return bend, is suitable for sewage drainage, and is also suitable for other fluid pipelines with one-way flow requirement.

The invention relates to a valve suitable for being mounted on an airbag product, which comprises a valve casing, wherein an upwards extended threaded connection part is arranged in the middle of the upper surface of the valve casing, and, at the circumference, is in threaded connection with glands used for fixing the valve onto the airbag product. The valve is characterized in that the glands are two, namely the first gland and the second gland below the former; the inner layer of the airbag product is pressed between the second gland and the upper end surface of the valve casing, and the outer layer thereof is pressed between the first gland and the second gland; against the two-layer structure of the used airbag, two fixing positions are arranged on the valve; and the second gland and the upper end surface of the valve casing form one fixing position for the inner layer film of the air bag, and the first and the second glands form one fixing position for the outer layer film of the air bag, that is, the valve can fix the two layers of films of the air bag respectively. Therefore, the valve is suitable for being mounted on the airbag product.

The invention discloses a wickerwork coating. The wickerwork coating is prepared from silicone acrylic emulsion, a modifying agent, composite filler, sodium dodecyl benzene sulfonate, ammonium polyphosphate, polyurethane emulsion, boric acid ester, modified broussonetia papyrifera juice, dioctyl phthalate, trisodium phosphate, a mixture of turpentine and lignin and water. The wickerwork coating is convenient to use, the waterborne coating is adopted, volatile substances such as benzene are not contained in the coating in use, the side effect cannot be generated on the body of a user, and the coating is not prone to falling off; when the coating is in use, drying is quick, the levelling property is good, health hidden danger in a common coating is avoided, flatness is high, construction is easy, adhesivity and fire resistance are high, the hardness of the coating is high, a protective layer can be easily formed, and meanwhile the wickerwork coating has the advantages of being quick in drying and free of after-tack performance; the coating is not prone to sagging during brushing constructing, a formed film is firm and tenacious, and the environment-friendly requirements are met.

The invention belongs to the technical field of coatings, and particularly relates to an environment-friendly wax oil, which is prepared from the following materials in parts by weight: isocyanate-modified alkyd resin, vegetable oil, biological wax, polyfluo-wax, natural resin, rare-earth catalyst, fatty alcohol polyoxyethylene methyl-terminated polyether and free radical absorbent. The environment-friendly wax oil disclosed by the invention not only is suitable for being brushed on indoor wooden ware, but also is applicable to indoor and outdoor wooden ware products, and has the advantages ofgood weatherability, quick drying, good stability and good yellowing resistance; and moreover, the environment-friendly wax oil cannot easily sag during brushing, and the formed film is tough.

The invention provides a translation window with an invisible anti-theft net. The translation window comprises a window frame, a first window sash, a second window sash and the first invisible anti-theft net, and the first window sash and the second window sash are arranged and distributed symmetrically and installed in the window frame through a pushing-pulling mechanism to form the combined translation window; the first invisible anti-theft net comprises a first sliding rod group and a first connecting rod group arranged on the first sliding rod group, and the first sliding rod group comprises multiple first sliding rods and multiple second sliding rods; the first connecting rod group comprises a first longitudinally-cross connecting rod group and a second longitudinally-cross connecting rod group, one end of the first longitudinally-cross connecting rod group is fixed in a second containing groove, the other end of the first longitudinally-cross connecting rod group is fixed to the side edge of the first window sash, one end of the second longitudinally-cross connecting rod group is fixed in the second containing groove, and the other end of the second longitudinally-cross connecting rod group is fixed to the side edge of the first window sash. According to the translation window with the invisible anti-theft net, the first invisible anti-theft net is invisibly arranged, unfolded along with opening of the first window sash and folded along with closing of the first window sash, and therefore use is convenient.

The invention discloses a UV curable plastic paint which is characterized by comprising 50-60% of modified epoxy UV resin, 10-20% of polyurethane UV resin, 10-20% of TPGDA activated monomer, 10-20% of TMPTA activated monomer, 3-5% of initiator and 5-10% of ethyl acetate solvent. The UV curable plastic paint has the advantages of low price, levelling property for large area construction of air conditioner, high glossiness and fullness of paint film, and excellent decorative effect.

The invention discloses a polyaniline graphene anti-corrosion coating and a preparation method thereof. The polyaniline graphene anti-corrosion coating comprises a wetting dispersant, a defoaming agent, a leveling agent, a curing agent, a curing accelerator, a solvent, epoxy resin, acrylic resin, a filler, a polyaniline graphene composite material and silicon micro-powder. The preparation method includes the steps: 1) pouring the epoxy resin and the solvent into a ball-milling tank and uniformly mixing the epoxy resin and the solvent to obtain a mixed solution; 2) adding the filler, the polyaniline graphene composite material and the silicon micro-powder into the mixed solution, grinding the mixed solution and then adding the curing agent and the curing accelerator to obtain grinding fluid; 3) adding the wetting dispersant, the defoaming agent, the leveling agent and the acrylic resin into the grinding fluid, uniformly stirring and mixing the wetting dispersant, the defoaming agent, the leveling agent, the acrylic resin and the grinding fluid to obtain the polyaniline graphene anti-corrosion coating. The anti-corrosion coating has good insulating property and durability, is beneficial to resisting physical damage to a film and excellent in comprehensive performance, and achieves an anti-corrosion function.

The invention relates to the technical field of wood coating, specifically to outdoor high weather resistant waterborne wood wax oil and a preparation method thereof. The outdoor high weather resistant waterborne wood wax oil is prepared from the following components in parts by weight: 60 to 80 parts of modified and non-modified plant oil, 5 to 8 parts of rosin resin and alkyd resin which are matched in equal proportion, 3 to 5 parts of beta-terpene resin, 10 to 15 parts of carnauba wax, candelilla wax or beewax, 2 to 5 parts of microcrystalline wax, 0.1 to 0.5 part of ricinoleic acid, 0.5 to1 part of a drier, 0.1 to 0.3 part of an anti-skinning agent, 0.1 to 0.5 part of an anti-foaming agent, and 0.1 to 0.5 part of an ultraviolet light absorber. The wood wax oil is good in weather resistance and can be exposed outdoors for a long time to provide protection for the wood.

The invention discloses a high-performance insulation lubricating grease and a preparation method thereof. The high-performance insulation lubricating grease comprises, by weight, 60-74 parts of silicone oil, 24-36 parts of hydrophobic ultra-fine silica, 0.5-1 part of a constitution controller and 1-3 parts of a thixotropic agent. The preparation comprises the steps that the silicone oil and the hydrophobic ultra-fine silica are mixed and processed at a low temperature in a kneader, high-temperature vacuum processing is conducted, the constitution controller and the thixotropic agent are addedafter the temperature is decreased, and the high-performance insulation lubricating oil is obtained after the mixture is ground by a three-roller grinding machine. The prepared high-performance insulation lubricating grease has the advantages that the storage period is 18 months or above, the lubricating grease does not thin, bleed and structuralize, and the colloidal stability and shearing stability are excellent.

The invention discloses strong-permeable outdoor water-based wood wax oil for woodenware. The water-based wood wax oil comprises the following components, by weight part: 40-60 of an emulsion, 0.1-0.5 of a film forming auxiliary agent, 0.2-0.5 of wax powder, 0-0.5 of a dispersing auxiliary agent, 0.4-0.5 of anti-settling powder, 0-30 of pigment, 0.1-0.5 of an anti-skinning agent, 0.4-0.5 of a mixed ultraviolet absorbent, 0.1-0.3 of an anti-foaming agent, 10-30 of a water-soluble solvent, and 0.3-1.0 of a synergic drier. The invention further discloses a preparation method of the strong-permeable outdoor water-based wood wax oil for woodenware. The strong-permeable outdoor water-based wood wax oil for woodenware is environment-friendly, and is not easy to crack, fall, and foam even in server environment (such as the environment with large temperature difference and high humidity). The strong-permeable outdoor water-based wood wax oil for woodenware is simple to apply and easy to maintain, and has good weather resistance, excellent water resistance, and an ideal durable effect in the presence of sunshine and ultraviolet. The water-based wood wax oil is not easy to run or sag during application of painting; the formed film is tough; and the water-based wood wax oil is convenient to apply and suitable for DIY.

The invention discloses a transparent primer dipped with unsaturated polyester. The transparent primer is composed of the following components at a weight ratio: primary paint: a diluent: an initiator: an accelerator=100:150:(1-2):(1.2-2.5); the primary paint is composed of the following components: 70-80% of unsaturated polyester resin, 5% of epoxy acrylic resin, 0.3-0.5% of a defoamer, 0.3-0.5% of a dispersant, 0.5-0.8% of an anti-settling agent, 0.2-0.4% of a flatting agent, 0.1-0.3% of a polymerization inhibitor, 4-6% of a polishing agent and 7-18% of an active solvent. The unsaturated polyester resin is allyl ether modified unsaturated polyester resin, the solid content of which is 72-78% and the viscosity of which is 2000-3000mpa.s; the active solvent is a mixture of styrene and a polyester transparent primer; and the diluent is composed of acetic ether, styrene, methylbenzene and acetone. The transparent primer dipped with unsaturated polyester disclosed by the invention has relatively good defoaming property and sag prevention, and is strong in seepage force, excellent in fillibility, and the sealing effect is obviously superior to that of a PU sealing primer in the market, so that the problem that the film collapses is effectively solved. The transparent primer for firstly dipping woodware is labor-saving and material-saving, energy-saving and environment-friendly, high in construction efficiency and suitable for flow line production.

The invention provides an integrated cobra-shaped biliary stent comprising a biliary stent body, a stent push pipe, a stent guiding pipe, and a stent protection casing pipe. The stent guiding pipe passes through the stent push pipe and the biliary stent body successively to connect a loop and a through hole pedestal into one. The stent protection casing pipe sleeves the top ends of the biliary stent body and the stent push pipe to protect the stent structure before usage. The biliary stent body is in an oblique S shape, the other end of the biliary stent body is in a shape like alpha, and the middle part of the biliary stent body serves as a drainage segment. Under guidance of a guide wire, the integrated biliary stent can pass through a choledochal duct cut, a T-shaped pipe sinus tract, and a percutaneous transhepatic biliary puncture sinus tract successively and then enters a biliary drainage part in a direct motion manner or can be placed into a biliary drainage part through a duodenoscope in a retrograde motion manner. The stent can fall automatically. Different stent drainage time can be obtained by selecting S-shaped structures with different radians according to clinic demands; and on the basis of the special S-shaped structure of the stent, a phenomenon that pancreatitis is caused because of pressing at a pancreiatic duct opening when the stent is discharged out of the biliary duct can be avoided.

The invention discloses a method for recovering carbon dioxide by multistage liquefaction and staged refrigeration of industrial tail gas, wherein the method comprises the following steps: raw material gas firstly enters a first residual cold recoverer, exchanges heat with non-condensable gas, is pre-cooled to 22 DEG C, then enters a second residual cold recoverer, exchanges heat with the non-condensable gas, and is pre-cooled to 16 DEG C; then the pre-cooled raw material gas enters a primary condenser, is cooled to -18 DEG C through ammonia evaporation refrigeration, then enters a secondary condenser, and is cooled to -25 DEG C through ammonia evaporation refrigeration; then the treated gas enters a rectifying tower to be rectified and purified, a tail condenser arranged at the top of therectifying tower cools the tail condensed gas to -45 DEG C through ammonia vacuum evaporation, and a qualified industrial-grade or food-grade liquid CO2 product is extracted from the tower kettle ofthe rectifying tower; the product is sent to a supercooler through a product pipeline, is supercooled to -25 DEG C through ammonia evaporation refrigeration and then is sent to a product storage tankthrough a product pipeline. The technological process is clear in hierarchy, low in working pressure and low in equipment manufacturing difficulty, the refrigeration coefficient of a refrigeration system is increased, meanwhile, the yield of the CO2 system is increased, and the purposes of saving energy and reducing consumption are achieved.

The invention discloses a high solid content UV vacuum plating coating. The high solid content UV vacuum plating coating comprises, by weight, 23 to 28% of urethane acrylate, 6 to 10% of modified epoxy acrylate, 13 to 18% of a special polyester acrylate, 12 to 17% of hydroxypropyl methacrylate, 2 to 4% of dipentaerythritol hexaacrylate, 6 to 12% of ethoxylated trimethylolpropane triacrylate, 1 to 2% of amine acrylate, 1 to 5% of 1-hydroxyl-cyclohexyl-benzyl ketone, 4 to 8% of butyl acetate, 4 to 8% of acetic ether, and 10 to 15% of a special solvent. According to a preparation method, excellent wetability and levelling properties are achieved via artful combination and the special preparation method of special monomers and resin, mirror surface effect of metal surface large area spraying can be achieved, sagging is not easily caused, plumpness is excellent, operation is convenient in operation process, and the high solid content UV vacuum plating coating is a metallic paint with excellent performance suitable for automobiles, bicycles, motorcycles, and electrombiles.

The invention provides a humidifier and an air treatment device. The humidifier comprises a water tank, a base and a water curtain, wherein the water tank is arranged on the base; the water curtain is arranged in the base; the humidifier also comprises a water control valve; the water control valve is connected with the water tank and stretches into the base; the height of the bottom surface of the water control valve is greater than the height of the bottom surface of the water curtain; at least one air inlet is formed at the bottom of the base; at least one air outlet is formed at the top of the water tank; each air inlet and each air outlet are communicated through the water curtain; when the water level in the base is higher than the bottom surface of the water control valve, the water control valve does not discharge water; when the water level in the base is lower than the bottom surface of the water control valve, the water control valve discharges water; the air treatment device comprises the humidifier, an unpowered fan and an air source device; and the unpowered fan is positioned between the humidifier and the air source device. The humidifier and air treatment device provided by the invention have the advantages of simple structure, convenience in mounting and use, environmental protection, energy conservation and long service life.

The invention discloses polyester resin for high filling mark covering powder paint and a preparation method thereof. Neopentyl glycol, pentaerythritol, terephthalic acid, m-phthalic acid and 1,4-cyclohexanedicarboxylic acid are used as raw materials to be prepared into the polyester resin through esterification polymerization. The powder paint prepared by the polyester resin has excellent film coating performance, is particularly applicable to the field of automobile hubs and the like, and has high filling mark covering performance; good surface levelling property, hardness, adhesive force, salt spray resistance, light resistance and aging resistance are realized.