148results about How to "Obvious stratification" patented technology

The invention belongs to the technical field of concrete and in particular relates to a super-light aggregate concrete for long-distance homogeneous pumping construction, a preparation method thereof and a pumping construction process. The super-light aggregate concrete for the long-distance homogeneous pumping construction is characterized by being prepared from water, a gel material, a fine aggregate, a coarse aggregate and an additive, wherein the gel material consists of cement and fly ash; the coarse aggregate is super-light ceramic particles; the fine aggregate is ceramic sand; the additive is a pumping agent and a water reducing agent; each cubic meter of concrete comprises 180 to 250kg of water, 160 to 250kg of cement, 250 to 320kg of fly ash, 350 to 450kg of super to light ceramic particle, 300 to 400kg of ceramic sand, 3.5 to 4.5kg of water reducing agent and 0.35 to 0.45kg of pumping agent. In a pumping process, the super-light aggregate concrete prepared by the method has relatively good working performance and homogeneity. The problems of easy blockage of a pump, high slump loss, layered concrete and the like in the pumping construction process of the super-light aggregate concrete are solved.

The invention discloses a device for treating micro-electrolytic water. The invention, provides a micro-electrolyzing device by a fluidized bed, which has little filler consumption under an acid condition, little deposit generated in a subsequent neutralizing stage, non-block in a filler layer and little power consumption. The device comprises a bed body, an inlet pipe on a side where the bed body is close to an upper end, an outlet pipe on a side where the bed body is close to the upper end and is opposite to the inlet pipe, a porous support plate on a bottom of the filler in the bed body and an effluent weir on which top of the bed body is close to the outlet pipe. A clapboard is arranged in the middle of the bed body to divide the interior part of the bed body into two cavities, which are arranged as funnel structures respectively; two high-pressure tracheas are let in the bottom of the two cavities inside the bed body through outside the bed body respectively. The device allows the fine particle subsided at the bottom of the funnel in a fluidized state without soil hardening and can further generate micro-electrolysis reaction with the waste water, which at the same time reduces power consumption; the grate prevents impurity such as fiber to enter the device and avoids the filler loss.

The invention discloses a fully-automatic production line applied to brake pad production. The production line sequentially comprises a weighing device, a loading device and a plurality of hot presseswhich are arranged in a straight mode from front to rear, wherein a material receiving box is separately arranged at the front side of each hot press; the loading device comprises a cross sliding table which is composed of a beam and a longitudinal beam in sliding connection with the beam; a loading arm is arranged on the longitudinal beam in a sliding mode; a transverse drive mechanism is arranged between the beam and the longitudinal beam; a longitudinal drive mechanism is arranged between the longitudinal beam and the loading arm; the loading arm comprises a loading arm frame body; and a loading mechanism, a spraying mechanism, a flattening mechanism, a cleaning mechanism and a taking-placing mechanism are sequentially arranged in the loading arm frame body from rear to front. The production line can realize automatic production of a brake pad, does not need manual operation throughout the process, and greatly improves production efficiency.

The invention relates to a heavy anticorrosion super weatherproof powder coating. The heavy anticorrosion super weatherproof powder coating comprises the following components of: an epoxy resin particle system containing epoxy resin and an adaptive curing agent A and a fluorocarbon resin particle system containing fluorocarbon resin and an adaptive curing agent B, wherein the weight part ratio of the epoxy resin particle system to the fluorocarbon resin particle system is (6-4):(4-6). The heavy anticorrosion super weatherproof powder coating provided by the invention has excellent weatherproof and anticorrosion properties and also can realize automatic stratification after once coating is carried out, and construction is simple.

The invention discloses an iron-based nanocrystalline composite coating for protecting a boiler tail heating surface and a laser-cladding forming process of the iron-based nanocrystalline composite coating. The iron-based nanocrystalline composite coating comprises the following components in percentage by weight: 49.9-62.8% of Fe, 14.2-20.4% of Cr, 9.0-16.3% of Mo, 2.9-4.1% of B, 0.6-1.3% of C, 1.0-2.4% of Mn, 3.4-8.0% of W, 1.0-1.9% of Si and 0-3.9% of RE, wherein RE is a rare earth element. The forming process comprises the following steps: preparing alloy powder of the iron-based nanocrystalline composite coating; treating the surface of the boiler tail heating surface; preparing the iron-based nanocrystalline composite coating through a simultaneous powder feeding method and a laser-cladding method, wherein the laser cladding is performed for multiple times. The formed iron-based nanocrystalline composite coating is 1 mm above in thickness. The iron-based nanocrystalline composite coating can obviously enhance the wear resistance and corrosion resistance of the boiler tail heating surface, and reduce maintenance costs of worn and corroded parts and consumption of raw materials of a power plant.

The invention provides carbon nanotube conductive paste, a preparation method thereof and a lithium ion battery. The carbon nanotube conductive paste comprises the constituents based on 100 percent bymass: 0.5-10% of conductive functional body, 0.1-5% of dispersing agent and 85-97.5% of solvent, wherein the conductive functional body comprises a rough multi-walled carbon nanotube with a tube diameter being 40-150 nanometers and a fine multi-walled carbon nanotube with a tube diameter being 5-40 nanometers, the difference between the tube diameters of the rough multi-walled carbon nanotube andthe fine multi-walled carbon nanotube is more than or equal to 20 nanometers, the mass ratio of the rough multi-walled carbon nanotube and the fine multi-walled carbon nanotube is (8-2):(2-8), and the tube lengths of the rough multi-walled carbon nanotube and the fine multi-walled carbon nanotube are 30-100 micrometers. The carbon nanotube conductive paste provided by the invention has the characteristics of low settlement, no obvious layering, uniform conductive network and the like, the carbon nantoubes are uniformly dispersed, the volume resistivity is about 50 milliohm per centimeter, andthe viscosity is smaller than 15,000 mPa.s.

The invention relates to a heat insulation super-weather-proof powder coating which comprises an epoxy resin particle system and a fluorocarbon resin particle system, wherein the epoxy resin particle system contains epoxy resin and a curing agent A, the fluorocarbon resin particle system contains fluorocarbon resin, a curing agent B and a heat insulation material. The ratio of parts by weight for the epoxy resin particle system and the fluorocarbon resin particle system is 6-4:4-6. The heat insulation super-weather-proof powder coating not only has good heat insulation, weather-proof and corrosion-resistant performance, but also can achieve self-layering after one-time coating, and is simple to construct.

The invention relates to a coating with performances of self-cleaning, heavy corrosion protection and super weather resistance. The coating with performances of self-cleaning, heavy corrosion protection and super weather resistance comprises an epoxy resin particle system which consists of epoxy resin and curing agent A, and a fluorocarbon resin particle system which comprises fluorocarbon resin, curing agent B and TiO2 nanometer particles. The ratio (weight in parts) of the epoxy resin particle system to the fluorocarbon resin particle system is 4-1:1-4. The self-cleaning powder coating with performances of heavy corrosion protection and super weather resistance disclosed by the invention has phase separation during the curing process to form a fluorocarbon face and an epoxy bottom layer, TiO2 nanometer particles only exist in the fluorocarbon face, and photocatalysis decomposition is prevented under the action of TiO2 due to the high chemical stability of fluorocarbon, so that the powder coating has good performances of self-cleaning, heavy corrosion protection and super weather resistance.

The invention provides a concentric double-layer sprayer, which has a hollow sleeve shape, wherein one end of the sprayer is provided with a medium inlet, and the other end of the sprayer is closed; a nozzle is arranged on a side wall of the sprayer and is a gap which is annularly formed along the circumference of the sprayer; and a secondary nozzle is arranged on the side wall of the sprayer along the length direction. The concentric double-layer sprayer is a novel sprayer suitable for a spraying device and is used for putting out a fire, diluting and covering leakage media and the like under temperature reduction, dust removing or emergency of equipment. A double-injection cavity and dual nozzles are arranged on the sprayer, so that concentric double-layer spraying is realized, and the aim of replacing or optimizing the sprayer of the spraying system is fulfilled. The sprayer has a wide spraying range; the spraying angle is adjustable, and different spraying angles and ranges on each layer can be realized; the concentric double-layer sprayer has the characteristics of large density of sprayed water mist, high water flow, and simple structure, is convenient to install and regulate, has an antifouling design and is hardly blocked, and the concentric double-layer sprayer is high in operating maintenance, attractive in spray appearance, and particularly suitable for overall coverage of large and medium equipment and devices.

The invention discloses a continuous surface exposure ceramic 3D printing device and a working method thereof. Before printing, a raw material feeding unit pours ceramic slurry into a window box; after a water pump pulls out the ceramic slurry in a first slurry tank, the ceramic slurry is conveyed into a second slurry tank through a second slurry conveying pipeline, the ceramic slurry in the second slurry tank flows into aliquidstorage tank of the window box through the second slurry conveying pipeline, the ceramic slurry in the liquid storage tank of the window box flows into the first slurrytank through the first slurry conveying pipeline, and the circulation flow of ceramic slurry in the first slurry tank, the liquid storage tank, and the second slurry tank is realized throughthe waterpump; and the continuous surface exposure technology is adopted, continuous molding of ceramic 3D printing is realized, and continuous printing is realized.

The invention relates to ventilation and fire control of road tunnels, in particular to a method for initiating a smoke outlet of the road tunnel. The method comprises a smoke vent arranged along the length direction of tunnel and a plurality of smoke outlets arranged at the top of the tunnel, wherein, the smoke vent is internally provided with a smoke exhaust blower, the smoke outlets are communicated by the smoke vent; the method is characterized in that the initiating method is : when a fire source appears, after the fire source position is fixed, two smoke outlets at the lower reaches of a fire source point and a smoke outlet at the upper reaches of the fire source point are initiated; the method has the advantages of optimizing smoke exhaust effect of the road tunnel, improving smoke control capacity, reducing influence range thereof on the basis of the same smoke exhaust configuration, effectively controlling proliferation of smoke within the range of 150m, maintaining fine smoke layering and providing relatively good safe space for the specialized personnel.

The invention belongs to the field of metal powder coating, and particularly relates to fingerprint-resistant metal powder coating with a chromium plating effect. The fingerprint-resistant metal powder coating with the chromium plating effect comprises an epoxy resin particle system containing epoxy resin, adaptive curing agent A and chromium plating effect pigment, and a fluorocarbon resin particle system containing fluorocarbon resin and adaptive curing agent B, wherein the ratio of parts by weight between the epoxy resin particle system and the fluorocarbon resin particle system is 7-3 / 3-7. The fingerprint-resistant metal powder coating with the chromium plating effect forms an epoxy resin layer and a fluorocarbon resin layer which are separated in the solidification process, floating type aluminum powder is bonded regularly by means of a bonding process to form the chromium plating effect, the fluorocarbon resin layer at the outer layer has the functions of a transparent protective film, and the epoxy resin layer at the inner layer forms a bonding layer and is favorable for bonding with a layer to be coated.

The invention discloses an oil-based suspending agent and a preparation method and a purpose thereof. The oil-based suspending agent comprises the following components: a component A of at least a solid spirotetramat active matter under room temperature; a component B of at least one fatty acid ester having a general formula of R1-COO-R2 and / or R1-COO-R2-OOC-R1; a component C of at least a nonionic surfactant and / or at least an anionic surfactant; and a component D of any one or at least two additives selected from an emulsifier, an antifoaming agent, an antiseptic, an anti-oxidant, a colouring agent or an inertia filling material. The oil-based suspending agent can effectively control the particle size increase problem of spirotetramat during a storage process, greatly inhibits the particle size increase of spirotetramat suspension particles, and increases the spirotetramat activity, compared with a conventional preparation, the higher activity is obtained, and the usage amount of spirotetramat is reduced.

The invention discloses a silane coupling agent modified silicon dioxide phase change microcapsule and a preparation method thereof, wherein the phase change microcapsule is prepared by using silane coupling agent modified silicon dioxide as a wall material and using an organic phase change material as a core material through a sol-gel method. According to the invention, the organic group modifiedsilicon dioxide precursor is grafted and introduced by using the silane coupling agent to regulate the polycondensation reaction rate, so that the phenomena of uneven wall material thickness and wallmaterial self-polymerization are reduced, the utilization rate of the wall material is further increased, the coating rate of the phase change microcapsules is obviously increased, and the water resistance and the toughness of the wall material are improved; and sodium silicate as the silicon dioxide precursor is cheap and easy to obtain, and the reaction has no toxicity.

The invention provides a sampling machine for geological exploration. The sampling machine for the geological exploration comprises a fixing plate and a stabilizing rods, wherein a first cylinder is arranged on the fixing plate; a first ejector rod stretches out of the fixing plate and is connected with a motor; the motor is connected with the stabilizing rods on the two sides in a sliding mannerthrough a sliding plate; a rotating shaft is connected to the output end of the motor; a bracket is connected to the end part of the rotating shaft; a pad plate is fixed into the bracket; a pressing rod runs through the pad plate in clearance fit; symmetrical second cylinders are arranged on the pad plate; balls are arranged on second ejector rods of the second cylinder; the balls are arranged ina rollaway nest in the bottom of a supporting plate and are connected with the rollaway nest in a sliding manner; a positioning ring is connected to one end of the bracket; multiple layers of sequentially distributed positioning collecting mechanisms are arranged on the positioning ring. The sampling machine for the geological exploration can collect samples at different depths of soil at the sametime, layering is relatively obvious, the collected samples have relatively high precision, fitting is more compact and the sampling machine is relatively convenient to use.

The invention discloses a full-automatic brake pad production device which comprises a feeding device, a weighing device and multiple hot presses. The hot presses and the weighing device are arrangedin a linear shape, and the weighing device is arranged at the end portion. The feeding device is arranged on the front side of the hot presses and the weighing device. Middle die units and lower die units of the hot presses can stretch out of machine bodies of the hot presses. The feeding device comprises a feeding frame body, and a first mechanical hand, a second mechanical hand and a third mechanical hand are sequentially arranged on the feeding frame body from right to left. The weighing device comprises a weighing frame body, and a main material weighing system and an auxiliary material weighing system are arranged on the weighing frame body. Transfer mechanisms in butt joint with the first mechanical hand are arranged at the positions of outlets of the lower ends of the main materialweighing system and the auxiliary material weighing system. By means of the full-automatic brake pad production device, full-automatic production of brake pads is achieved, the production efficiency is improved, and the labor cost is reduced.

The invention relates to a PBMC separation method. The method includes the following steps that after whole blood centrifugation blood cells are taken for being made into blood cell diluent, a Ficoll separating medium is utilized for conducting centrifugation for 20-30 minutes for separating PBMC in the blood cell diluents, wherein the temperature is 15-18 DEG C, the weight is 500-1000 g, and the centrifugal force ascending and descending speed is zero. According to the PBMC separation method, when the PBMC is separated, the centrifugal force ascending and descending speed is zero so that PBMC layers can be layered more obviously, and it is beneficial to improve the yield and purity of PBMC. By means of the method, plasma can be recycled, and the plasma contains a great number of protein factors which provide rich nutrition for subsequent culture.

The invention discloses a method for preparing crude fish oil with fish oil nigre. The method comprises the steps of adding deionized water into the raw material fish oil nigre, which is the byproduct generated from refining of the fish oil according to a material-liquor weight ratio of 1:(0.6-4), so as to obtain a reaction base material; then adding an acidifier concentrated sulfuric acid into the reaction base material according to the use level of 2-10mL of concentrated sulfuric acid for every 100g of reaction base material, backflow reacting for 30-90 minutes while stirring under constant temperature water bath at 50-90 DEG C; after reaction, pouring the obtained product into a separating funnel, washing by hot water till a scrubbing solution is neutral, and then standing for layering, thus obtaining the upper layer of oil phase, the crude fish oil. By adopting the method, the problem of carbonization of the oil in acidification of the fish oil nigre can be solved, and high-quality crude fish oil with high acid value can be obtained.

The invention belongs to the field of powder coating and particularly relates to power coating with an effect of color changing along with an angle. The powder coating with the effect of color changing along with the angle comprises epoxy resin, an epoxy resin particle system corresponding to a matched curing agent A and color changing pigments and a fluorocarbon resin particle system with fluorocarbon resin and a matched curing agent B. The parts by weight ratio of the epoxy resin particle system and the fluorocarbon resin particle system is 7-3:3-7. According to the powder coating, the color changing pigments are adhered in an epoxy resin layer successfully through bonding technology. In the process of curing, the color changing pigments are sunk into the coating bottom instead of floating to the surface of the coating along with the epoxy resin. A transparent fluorocarbon resin layer floating to the upper layer has the function of protecting the color changing pigments so that the color changing pigments are antioxidative. A structure of the color changing pigments is not damaged in the whole process and the color changing effect is thoroughly played.

The invention relates to a vegetable insulating oil refining process taking rapeseed oil as a raw material. The vegetable insulating oil refining process comprises the following steps: 1) selecting novel ionic liquid [thtd-Ph] Cl to carry out methyl esterification modification on rapeseed oil, and carrying out preliminary refining of degumming, washing, primary deacidification, reduced pressure distillation, normal pressure decoloration and deodorization on the rapeseed oil; 2) carrying out secondary alkali refining decolorization treatment and reduced pressure distillation on the rapeseed oilsubjected to primary refining to obtain refined rapeseed oil; 3) adding an antioxidant and an anticoagulant into the refined rapeseed oil to obtain modified rapeseed oil. The vegetable insulating oiltaking the rapeseed oil as a raw material has high flash point, low viscosity, low condensation point, low acid value and low water content, good physical and chemical properties and electrical properties, can meet the standard of transformer insulating oil, and can be widely popularized and used.

The invention discloses an oil-based concentrated solution, a preparation method and application thereof. The oil-based concentrated solution comprises the following components: (a) at least one active spirotetramat matter which is solid under room temperature, (b) at least one active pyriproxyfen matter which is solid under room temperature, (c) at least one aliphatic ester with the formula R1-COO-R2 and / or R1-COO-R2-OOC-R1, (d) at least one nonionic surfactant and / or at least one anionic surfactant and (e) one or at least two additives randomly selected from an emulgator, a de-foaming agent, a preservative, an antioxidant, a colorant or inertial filling material, wherein pyriproxyfen is dissolved in the component c under molecular state and spirotetramat is suspended in the component c under particle state. The oil-based concentrated solution prepared according to the invention is capable of effectively controlling the problem of grain size increasing of spirotetramat in a storage process, promoting the preparation stability, enhancing the compounding effect and enhancing the bioavailability.

The invention belongs to the field of metal powder coatings, and in particular relates to a metal powder coating for enhancing a flash effect. The metal powder coating for enhancing the flash effect comprises an epoxy resin particle system containing epoxy resin, a correspondingly adaptive curing agent A and flash metal pigment, and a fluorocarbon resin particle system containing fluorocarbon resin and an adaptive curing agent B. The weight part ratio of the epoxy resin particle system to the fluorocarbon resin particle system is (6-4):(4-6). According to the metal powder coating for enhancing the flash effect disclosed by the invention, thick aluminium-silver powder is successively bonded into an epoxy resin layer by using a binding process, so that the thick aluminium-silver powder is deposited in the bottom layer of a coating together with the epoxy resin layer in the curing process and cannot float in the surface layer of the coating; and a transparent fluorocarbon resin layer floating to the upper layer plays a role of protecting oxidative resistance of flash metal powder.

The invention discloses an automatic loading device applied to brake pad production. The automatic loading device comprises a cross sliding table which is composed of a beam and a longitudinal beam insliding connection with the beam; a loading arm is arranged on the longitudinal beam in a sliding mode; a transverse drive mechanism is arranged between the beam and the longitudinal beam; a longitudinal drive mechanism is arranged between the longitudinal beam and the loading arm; the loading arm comprises a loading arm frame body; and a loading mechanism, a spraying mechanism, a flattening mechanism, a cleaning mechanism and a taking-placing mechanism are sequentially arranged in the loading arm frame body from rear to front. The device realizes automatic operation of a series of middle processes such as plate taking, cleaning, spraying, loading and steel backing, and solves the key automatic loading key in brake pad automatic production.

The invention relates to the field of food seasonings and discloses a poached sliced meat seasoning and a preparation method thereof. The poached sliced meat seasoning is formed by first grade rapeseed oil, Pixian county watercress, table salt, garlic granules, new generation chilli powders, new generation chilli paste, white granulated sugar, monosodium glutamate, ginger granules, fermented soybean paste, yellow rice wine, chopped hot pepper, spring onion paste, composite spices, converted dark purple Chinese prickly ash granules, paprika powders, a yeast extract, disodium 5'-ribonucleotide, chive oil and soy sauce. 20 types of food raw materials are finely selected, the novel poached sliced meat seasoning with authentic pungent, spicy, fresh, color and aroma flavors is prepared through a reasonable proportion, the oil color is bright, the poached sliced meat seasoning has a rich natural fragrance and is salty and fresh in taste, the pungent and spicy flavor is prominent, the oil layering is good, the flavor of the poached sliced meat seasoning is obviously superior to that of existing similar products, and the poached sliced meat seasoning is well praised by consumers.

The invention relates to a platelet-rich blood plasma acquiring device. The device is composed of a tube with two ends respectively having an opening, a cover used for covering one opening, and a piston used for sealing the other opening. A narrow tube portion positioned in the middle section of the tube and having an internal diameter lower than the internal diameter of the tube uses the matching of the tube and a push bar to conveniently push the piston to move a buffy coat rich in platelets and leucocytes to the middle of the tube by the push bar after blood centrifuge. The narrow tube portion in the middle section of the tube makes the buffy coat more obvious, so a blood plasma having a high concentration of the platelets can be conveniently taken by a user. The cover positioned at one end of the tube makes the user easily open and operate.

The invention belongs to the field of a powder coating and particularly relates to a metal alike art type powder coating. The metal alike art type powder coating comprises an epoxy resin particle system and a fluorocarbon resin particle system, wherein the epoxy resin particle system contains epoxy resin, an adaptive curing agent A and a flatting agent A; the fluorocarbon resin particle system contains fluorocarbon resin, an adaptive curing agent B and a flatting agent B; and the weight part ratio of the epoxy resin particle system to the fluorocarbon resin particle system is (6-4):(4-6). According to the metal alike art type powder coating, the incompatibility of the flatting agent, the epoxy resin and the fluorocarbon resin is utilized for controlling the distribution the flatting agent, the epoxy resin and the fluorocarbon resin in coating layers, so that the flatting agent is evenly dispersed between the epoxy resin layer and the fluorocarbon resin layer to generate a visual effect of alternative dark and bright, and then a metal alike effect is achieved.

The invention relates to the technical field of food, and discloses a spicy minced fish sauce and a preparation method thereof. The spicy minced fish sauce is prepared by Dong River freshwater fish meat, high mountain peppers, garlic, gingers, onions, monosodium glutamate, chicken powder, colza oil, sesames, salt, ground pepper, white sugar, dry chilli powder and deodorization pickling salt. A plurality of food raw materials are selected and reasonably mixed to prepare novel spicy minced fish sauce of Dong River freshwater fish; and the sauce has authentic color, aroma, taste and alcohol flavor; the product has the advantages of clear oil color, red color, mellow natural fragrance, salty and fresh flavor, obvious spicy taste and excellent oil layering; the flavor of the product is remarkably better than that of like products; and the product is well received by consumers.

The invention relates to the field of medical appliances, in particular to an oxygen humidifying bottle. The oxygen humidifying bottle comprises a bottle body, a bottle cap, an oxygen admission passage pipe which is inserted in the bottle cap and an oxygen exhaust passage pipe, wherein an oxygen moistening mechanism is arranged at one end located in an inner cavity of the bottle body, of the oxygen admission passage pipe, and comprises a rotor which is rotatably arranged on the oxygen admission passage pipe; the driving force of rotating of the rotor is provided by oxygen which flows in the oxygen admission passage pipe; a gas collecting groove is formed in the central position of the top of the rotor, communicates with the oxygen admission passage pipe, and is in rotataby and cooperated connection with the oxygen admission passage pipe; a plurality of gas distributing channels which are radially distributed are formed in a part between the outer edge of the rotor and the gas collecting groove, on the rotor, in a spaced manner; and all the gas distributing channels adopt an arc shape and are constant in the bending direction on the rotor in a circumferential direction. Through theadoption of the oxygen humidifying bottle disclosed by the invention, the contacting specific surface area of oxygen bubbles and distilled water can be enlarged, and the stroke of the oxygen bubbles exhausted from the distilled water is extended, so that the humidifying effect of the oxygen is notably improved.

The invention designs a surface quenching technology of loading wheels in a heat treatment furnace for heating and cooling by water spray quenching after the wheels are out of the furnace. A technical solution is as follows: according to a water spray quenching technology for wheel treads of industrial and mining locomotives, cranes and the like, the wheels are in a rotating state when water is sprayed. An apparatus of the technology adopts a steel beam is set up on a quenching water tank. After induction quenching, a hardening layer and a matrix are obviously layered with a transition layer thin, so that the hardening layer and the matrix are easy to crack when being heavily loaded. However, a transition layer between a hardening layer and a matrix of the wheel treads by the water spray quenching is relatively gentle and reasonable. The treads can bear greater impact and load. A water pump of the technology is put in a water tank; a motor is fixed on the wall of the water tank; a small sprocket wheel drives a large sprocket wheel; the upper side of the large sprocket wheel is connected with a circular turnplate; the center of the circular turnplate is welded with a tapered column for positioning a wheel lifting mould; and the wheels are put on the mould.

The invention belongs to the field of powder coating and in particular relates to a powder coating with an imitation anodic oxidation effect. The powder coating comprises an epoxy resin granule system containing epoxy resin, a correspondingly matched curing agent A and dye, and a fluorocarbon resin granule system containing fluorocarbon resin and a matched curing agent B, wherein the ratio of the epoxy resin granule system to the fluorocarbon resin granule system in parts by weight is (6-4): (4-6). The powder coating with the imitation anodic oxidation effect is a novel powder paint for art, which not only maintains the metallic luster of coating base materials, but also endows the coating base materials with bright color, and also has good weather resistance, the coating has excellent appearance decorative effect, the quality stability of the product of each batch is strong, and the product is durable and is very applicable to high end decorative fields.