33results about How to "Achieve "wetting"" patented technology

The invention discloses a method for preparing nano particle reinforced aluminum matrix composites. The method comprises the steps that firstly, mixed powder of nano ceramic powder and micron-sized aluminum or aluminum alloy powder is used for preparing millimeter-sized composite particles through a dry high-energy ball mill under the protection of vacuum or argon, wherein the volume fraction of nano ceramic particles in the millimeter-sized composite particles is 10-50%; and secondly, the millimeter-sized composite particles are melted directly or added into aluminum or aluminum melt, and supersonic vibration is applied, so that the nano ceramic particles are promoted to be uniformly dispersed in the metal melt, and the nano particle reinforced aluminum matrix composites are prepared. According to the method for preparing the nano particle reinforced aluminum matrix composites, the millimeter-sized composite particles prepared through a dry milling method can be added into the metal melt easily and completely, the problems that the wettability between the nano ceramic particles and matrix metal is poor, and adding of the particles is difficult are solved, and the advantage of low cost of a casting method for preparing metal matrix composites is given to play; the nano particles in the prepared composites are distributed uniformly, and the material performance is high.

The invention relates to an electromagnetic ultrasonic brazing method for SiC ceramic, the method comprises the following operation steps: the width of a brazing filler metal foil sheet is processed to be completely consistent with the width and size of the SiC ceramic; the surface of the brazing filler metal foil sheet and the surface of the SiC ceramic are ground and cleaned; the treated brazingfiller metal foil sheet is filled between two to-be-welded surfaces of the SiC ceramic, two pieces of the SiC ceramic are horizontally placed side by side, another brazing filler metal foil sheet ishorizontally placed on the upper edges of the two to-be-welded surfaces, then is placed in a muffle furnace, and is then arranged in a static magnetic field in the vertical direction after being heated, a permanent magnet and a coil are positioned right above the horizontally-placed brazing filler metal foil sheet, the static magnetic field is generated by a superconducting magnet, current is introduced into the two ends of the brazing filler metal foil sheet, meanwhile, pressure is applied to the two ends of the SiC ceramic, the SiC ceramic is cooled to the room temperature along with the furnace, and the brazing of the SiC ceramic is completed. The electromagnetic ultrasonic method is adopted, no ultrasonic tool head is arranged, and the SiC ceramic cannot be directly contacted during ultrasonic application, so that the SiC ceramic cannot be subjected to ultrasonic vibration so as to cause cracking.

The invention belongs to the technical field of textile printing and dyeing, and discloses a textile fabric printing and dyeing device. The device comprises a supporting plate, wherein a printing anddyeing box is fixedly connected to the top of the supporting plate, and two partition plates arranged left and right are arranged in the printing and dyeing box. According to the scheme, a cloth feeding winding drum and a cloth collecting winding drum with different lengths can be clamped, fixed, unwound and wound, textile fabrics with different thicknesses can be conveyed through a cloth feedingassembly with an adjustable interval, practicability is high, an auxiliary roller can assist in conveying the fabrics, the functions of automatic wetting, dust removing and excessive moisture absorbing through extrusion can be achieved through mutual cooperation of the auxiliary roller, a water spraying assembly and a water absorbing assembly in a wet spraying cavity, the automatic printing and dyeing function can be achieved through mutual cooperation of a hydraulic telescopic rod, a connecting block, a printing and dyeing module, a telescopic pipe and a dyeing agent box in a printing and dyeing cavity, automatic drying can be achieved through a drying assembly in a drying cavity, finally, winding is conducted through the cloth collecting winding drum, the automation degree is high, and the working efficiency is high.

The invention discloses a welding method capable of driving solders by using an electric field and application. The welding method comprises the following steps: base metal is preheated by 3-5 min at200-500 DEG C; brazing filler metal and the base metal are fixed according to a structure of base metal/brazing filler metal/base metal, and are heated to melt the brazing filler metal; after the brazing filler metal is molten, the heating is continued; meanwhile, liquid-state electrorheological fluid is filled in the brazing filler metal to obtain liquid-state mixed brazing filler metal; an electric field device is provided, and comprises an anode plate and a cathode plate; the anode plate and the cathode plate surround the base metal, and continuously apply the electric field to the base metal; meanwhile, the base metal is rotated; and the anode plate and the cathode plate are rotated around two base metal. The welding method facilitates film breakage, wetting and expansion of the liquid-state brazing filler metal on the surface of the base metal, promotes mutual dispersion and alloying of elements and components between the brazing filler metal and the base metal, improves the uniformity degree of welding lines, reduces the welding defects, and obtains high-strength welding joints.

The invention discloses a pigsty of a pig farm. The pigsty comprises a captive area; a live pig activity space defined by a left side wall, a right side wall, a front grid and a rear grid; an area support, which is of a columnar structure, and of which two ends are connected to the side walls to divide the captive area into a front activity area and a rear activity area; turnover floors, respectively arranged in the two activity areas and dividing the captive area into an upper live pig activity area and a lower pollution discharge area; and brush bodies, arranged under the turnover floors andused for cleaning bottom surfaces of the turnover floors. The pigsty has the beneficial effects that through turning over the floors, a dry and clean surface is upward for live pigs to move, and a dirty surface is downward for cleaning and drying in the shade, so that influence of cleaning the floors on the live pigs is reduced, and pigsty cleaning efficiency is improved; in addition, a gentle cleaning device is provided, cleaning is completed while the live pigs move, and the life and the living environment of the live pigs are basically not affected in the cleaning process.

The invention discloses a hydroelectricity dust catcher. An electric field region is arranged in an upper part of a box body, the electric field comprises multiple pairs of positive electrode dust collection plates and negative electrode lines, the multiple pairs of the positive electrode dust collection plates are arranged at intervals and in parallel, the negative electrode lines are arranged between each pair of positive electrode dust collection plates, spraying devices are arranged above the electric field region and are used for spraying purified water to the positive electrode dust collection plates, an atomizing humidification layer is arranged below the electric field region, a turbulence region is arranged below the atomizing humidification layer, a smoke inlet is higher than a position of the turbulence region, the turbulence region comprises bending plates which are arranged in parallel, each bending plate comprises a plurality of repeated units, each repeated unit is formed by connecting a first vertical plate, a left inclination plate, a second vertical plate, a right inclination plate and a third vertical plate in an end-to-end way, the lengths of the first verticalplate, the left inclination plate, the second vertical plate, the right inclination plate and the third vertical plate are equal, and angles of bending positions of the bending plates are equal and are all 140-170 DEG C. The hydroelectricity dust catcher is high in dust removal efficiency.

The invention discloses an adsorbent for dioxins and heavy metals and a preparation method thereof, relating to the technical field of pollutant adsorbents. The adsorbent comprises the following components: 70-75 parts of bentonite, 5-10 parts of wood charcoal, 2-5 parts of graphene, 2-5 parts of lignin, 10-15 parts of sodium bicarbonate and 2-5 parts of water. According to the adsorbent for the dioxins and the heavy metals and the preparation method thereof, the adsorbent has high adsorption efficiency, can process other acid gases, is cheaper than a traditional adsorbent, has a wide use temperature range and high adsorption efficiency, co-processes other acid gases in addition to adsorbing harmful substances such as the dioxins and the heavy metals, is lower in cost, and has a high domestic production degree in China, broad application prospects, and the effect of removing part of acid gases, the practicality of the adsorbent is greatly improved, and the adsorbent can be used for large-scale promotion and use and has higher practicability.

The invention discloses a rapid water sample heater. The rapid water sample heater is composed of a heat exchange tube 1 attached to the surfaces of heat sources 2 or clamped between the two heat sources, a heat conducting medium 3 filling all gaps between the heat exchange tube and the heat sources, and a temperature sensor 4, and the rapid water sample heater is characterized in that the heat conducting medium between the heat exchange tube and the heat sources uses tin-based alloy, and known heat conducting oil, or a metal aluminum casting method in which "thermal resistance" may exist is replaced.

The invention discloses an array type ceramic preform sintering unit monomer and a high-flux pressureless sintering method. The method comprises carrying out surface modification on ceramic particles,mechanically mixing with alloy powder, placing in a graphite mold to be pre-pressed to form a sintering monomer, and then sintering in a high-flux vacuum pressureless sintering furnace. Single-batchand high-flux ceramic particle preforms are prepared by controlling ceramic particle components, sizes, surface modification methods, alloy powder components and addition amounts in ceramic preform sintering unit monomers. The prepared prefabricated body can be widely applied to preparation of wear-resistant layers required by wear-resistant composite materials such as grinding rollers, plate hammers, hammer heads, bucket teeth, lining plates, impellers and reamer heads, and has the advantages of being simple to operate, low in cost and high in efficiency.

The invention relates to the technical field of welding, and discloses a preparation method of a temperature measuring seat for a superconducting feeder system, and the temperature measuring seat comprises a base and a circular tube which are welded with each other and are made of C10100 oxygen-free copper and 316L stainless steel. The preparation method comprises the steps that the round pipe is subjected to acid pickling, nickel plating is conducted after cleaning, an oxidation layer is removed from the base through an acid pickling method, the round pipe, the base and brazing filler metal are subjected to brazing assembly together through a welding device, the assembled welding device is integrally placed into a vacuum brazing furnace, and after the vacuum brazing step is executed, the furnace is opened, and the welding device is started. The welding device is simple in structure and convenient to use, contact between a base material and brazing filler metal can be guaranteed, the physical property that the difference between the base and the round pipe is large is effectively overcome, and reliable connection between the base and the round pipe is achieved.

The invention discloses a fluid adsorption type laser cutting head, and belongs to the field of laser cutting heads. The fluid adsorption type laser cutting head comprises a cutting head body, and the outer end of the cutting head body is fixedly connected with a ring cylinder; and the inner surface of the ring cylinder is provided with a ring groove, and the inner wall of the ring groove is fixedly connected with an adsorption hair layer. According to the fluid adsorption type laser cutting head, when a workpiece is cut, splashing molten slag can be surrounded comprehensively, and therefore the molten slag adheres to the adsorption hair layer wetted by pure water; in the process of cutting the workpiece, a water propeller is gradually in contact with the surface of the workpiece, and is supported by the workpiece, and therefore a water pushing ball is moved along a liquid gathering flow channel; the pure water is pushed out, and sprinkled on the adsorption hair layer; on one hand, the adsorption hair layer is continuously soaked, and on the other hand, the molten slag adhering to the adsorption hair layer is cleaned, and enters a fluid inlet flow channel with water flow; and the molten slag is easy to adsorb by the adsorption hair layer continuously.

The invention discloses a silicon carbide ceramic connecting method, a silicon carbide ceramic connector and silicon carbide ceramics, welding flux is welded on a welding surface of one silicon carbide ceramic unit and a welding surface of another silicon carbide ceramic unit, and the silicon carbide ceramic connecting method comprises the following steps: (1) pretreatment: polishing to-be-welded parts of two silicon carbide ceramics; then respectively carrying out acetone solution ultrasonic cleaning, alcohol ultrasonic cleaning and deionized water cleaning; (2) preparing soldering flux paste; (3) pasting: brushing the paste-made welding flux to the welding surfaces of the two silicon carbide ceramics; and (4) welding: putting the two silicon carbide ceramics into a clamping tool, and brazing in a heat treatment furnace, wherein the heating rate and the cooling rate are less than or equal to 5 DEG C/min. According to the method, good connection of SiC ceramics is achieved, and under the conditions that the temperature is 1400 DEG C, the heat preservation time is 10 min and the brazing filler metal thickness is two layers, the maximum shear strength of a SiC/welding flux/SiC connector is 150 MPa.

The invention discloses an intelligent textile industry electromechanical device capable of removing static electricity and automatically stretching, the intelligent textile industry electromechanical device comprises a machine shell and rollers, a control wheel is rotatably connected in the machine shell, a notch is formed in the surface of the control wheel, a first stop block corresponds to the notch in the surface of the control wheel, and an adjusting device is rotatably connected to the surface of the control wheel; the upper portion of the rolling wheel is fixedly connected with a connecting rod, and the upper end of the connecting rod is fixedly connected with a second push rod. According to the intelligent textile industry electromechanical device capable of removing static electricity and automatically stretching, a second check block loosens limitation on a first long plate clamping block, a reset device drives a first push block to slide through the first long plate, the first push block drives a sliding block to slide by extruding air, and therefore the first long plates on the two sides are intelligently controlled to slide, and the static electricity is removed; and the sliding block extrudes liquid to be sprayed to the surface of the textile material through the spray head, the surface of the textile material is wetted, and therefore the effect of removing static electricity on the surface of the textile material is achieved through water.

The invention discloses a self-service moisturizing type wet tissue packaging bag and a matched roll type wet tissue thereof, and belongs to the field of wet tissue packaging. The self-service moisturizing type wet tissue packaging bag comprises a single-opening plastic bag, an adhesive layer is fixedly connected to the inner wall of the opening end of the single-opening plastic bag, and an inner plate is fixedly connected to the interior of the single-opening plastic bag. Through cooperative use of the inner plate, a semi-open liquid overflowing column and roll paper, when the roll paper needs to be used, the end of the roll tissue is pulled out of the single-opening plastic bag only by imitating the use mode of the roll tissue, and the roll tissue drives the semi-open liquid overflowing column to rotate while being pulled out, so that wet tissue liquid in a liquid storage cavity flows onto the roll tissue along the semi-open liquid overflowing column, the roll tissue becomes wet from dry and is pulled apart, the roll tissue can be normally used, when the tissue box is not used, the wet tissue liquid is stored in the liquid storage cavity in a sealed mode and is effectively isolated from the outside, it is guaranteed that the wet tissue liquid is not prone to evaporation and loss, and therefore the using effect of the self-service moisturizing type wet tissue packaging bag is effectively guaranteed.

The invention belongs to the field of cosmetics, and particularly relates to a silicone oil-free shampoo composition with softening and repairing effects as well as a preparation method and application thereof. The silicone oil-free shampoo composition is prepared from the following components in parts by mass: 0.1-0.5 part of acrylamide propyl trimethyl ammonium chloride/acrylamide copolymer, 0.1-0.5 part of polyquaternium-10, 1-5 parts of PEG-75 shea butter glyceride, 1-5 parts of keratin and hydrolyzed keratin, and 0.5-2 parts of myristyl amide propane dimethyl ammonium chloride phosphate.According to the invention, the cationic surfactant is used to drive more polymers/oil flocculants to be adsorbed to damaged parts of hair, meanwhile, protein is tightly combined with the polyquaternium substance, the attachment strength of the protein on the hair is improved, so that as many beneficial components as possible are attached to the hair, and then the purpose of wetting, softening andbrightening the hair is achieved.