52results about How to "Fall off in time" patented technology

The invention relates to a preparation method of flaky metal powder. The preparation method comprises the following steps in sequence: machining a metal to be prepared into flaky powder into a flake and using the flake as a soluble anode; in an anode chamber of an electrochemical reactor, taking sulfate of the metal and sulfuric acid water solution as an electrolyte, oxidizing the soluble anode into corresponding metal ions and enabling the metal ions to enter anolyte; and after solid-liquid separation and anolyte impurity removal, adding an alkyl glycoside surfactant to the anolyte and adjusting the pH value to 5.0-6.5, then injecting the electrolyte into a cathode chamber of the electrochemical reactor, carrying out electrochemical reduction reaction on the cathode and separating out the metal to be prepared through deposition, simultaneously starting an ultrasonic generating device to strip the metal to be prepared on the cathode and deposit the metal to be prepared in the electrolyte below the cathode and then obtaining the qualified flaky metal powder through solid-liquid separation, washing, vacuum drying, screening and packaging. The preparation method has the advantages of reasonable and convenient process, safe and reliable preparation course and good prepared product quality.

The invention discloses a polishing solution and a polishing method for a medical titanium alloy, and belongs to the field of surface treatment. 1L of polishing solution comprises 50 to 100ml of perchloric acid, 500 to 550ml of methanol, 350 to 450ml of ethylene glycol and 2 to 10g of brightener. The polishing method comprises the following steps of: performing simple mechanical polishing on the titanium alloy, and performing electrochemical polishing, wherein electrolyte for electrochemical polishing is the polishing solution. For polishing treatment before the medical titanium alloy is used, the related polishing solution for the titanium alloy does not contain hydrofluoric acid, and volatile substances which are harmful to human health and strong pungent smell cannot be generated; and compared with the traditional mechanical polishing and chemical polishing, electrochemical polishing has the advantages that: the titanium alloy subjected to electrochemical polishing treatment has a bright and flat surface and does not have any scratch or line, and an irregular part can achieve a mirror surface effect after being polished.

The invention relates to the field of filler and aims at providing biological filler with a self-rotating function for waste gas treatment. The biological filter comprises a spherical support frame and a hollow multi-surface sphere, wherein the spherical support frame is formed by the abutting joint of two semispherical surfaces, each semispherical surface is formed by a plurality of longitudinal bars and transverse bars which are staggered; the hollow multi-surface sphere comprises a rotating shaft and a plurality of semi-circular blades which are fixed on the rotating shaft through straight sides; the two ends of the rotating shaft are arranged in a rotating shaft sleeve of the spherical support frame; and the hollow multi-surface sphere can freely rotate in the spherical support frame. The biological filler has the advantages of being beneficial to the uniform growing and distribution of microorganisms on the surface of the filler, further being beneficial to the increasing of microorganism charge capacity of the filler in unit volume, the purification efficiency of waste gas and load, being capable of promoting aged biological membranes to timely fall off and be taken away from gaps of the filter along with circulating water so as to avoid short-circuiting and blocking of a filler layer and having large enough specific surface area and void ratio, thereby ensuring the surface and space required for the growth of the microorganisms.

The invention discloses a conductive grinding head and an ultrasonic vibration assisted electrolytic grinding complex cavity forming device. The conductive grinding head comprises an upper tubular part and a lower tapered part. Through holes with the same aperture are formed in corresponding positions in the tubular part and below the tapered part, and therefore the smoothness and even distribution of a processing area are achieved. Ultrasonic vibration is adopted for a machining device, the rotating speed and feeding speed of an ultrasonic electric main shaft are reasonably adjusted, the flow rate and flow of an electrolyte is reasonably controlled, and therefore efficient and precise machining of deep holes, cavities and inner channels can be achieved.

The invention provides a fermentation tank cleaning device, and relates to the field of fermentation tank cleaning. The fermentation tank cleaning device comprises a driving motor, a fermentation tank, a mounting frame, a bottom plate and a spraying mechanism; the driving motor is arranged on the outer wall of the top end of the fermentation tank; an output shaft of the driving motor is provided with an electric telescopic rod through a coupler; the mounting frame is arranged on the outer wall of the top end of the fermentation tank; the spraying mechanism comprises a water inlet pipe, a hose and a spray head; one end of the spray head is fixedly connected with the electric telescopic rod, and one end of the hose is connected with the water inlet pipe; and the spray head is communicated with the other end of the hose. According to the fermentation tank cleaning device, the bottom plate can drive impurities to enter a cleaning groove, the problem that impurities at the bottom end of a fermentation tank are not easy to clean is solved, the bottom end can be conveniently cleaned by the spray head, meanwhile, the bottom plate can repeatedly move up and down, caked impurities are crushed and rapidly fall off, and the impurities can conveniently flow out of a liquid outlet cavity along with water flow.

The invention provides a casing gas containing hole impregnated diamond bit for geological exploration and a manufacturing process. The casing gas containing hole impregnated diamond bit comprises a steel body and a casing. The casing is located on the steel body. The steel body is provided with inner water grooves, water gaps and outer water grooves. Diamonds and gas holes are formed in the casing. The invention further provides the manufacturing process of the casing gas containing hole impregnated diamond bit for geological exploration. By the adoption of the casing gas containing hole impregnated diamond bit for geological exploration, tiny broken blocks are generated by the casing along with the increase of pressure in the drilling process, old diamonds fall in time, new diamonds are exposed continuously, the drilling speed is increased, and drilling efficiency is improved.

The invention relates to an etching solution and a secondary hardening method of glass for a capacitive touch screen. The etching solution comprises components in percentage by mass as follows: 10.7%-12.84% of HF (hydrogen fluoride), 10.51%-10.9% of HNO3, 3.48%-3.84% of HCl, 0.1%-0.3% of sodium dodecyl sulfate and water. The etching solution can improve the bending strength of the glass for the capacitive touch screen.

The invention discloses sewage treatment filler which is characterized by comprising a fixed part (1), distributing supporting parts (2) and a plurality of filler parts (3), wherein the fixed part (1) is provided with the distributing supporting parts (2) which are umbrella-shaped, and the filiform or tubular filler parts (3) are arranged on the umbrella-shaped face of the distributing supporting parts (2). The sewage treatment filler disclosed by the invention is low in input cost, high in water treatment efficiency, low in operating cost and quick to suit water quality change of high concentration wastewater and sewage.

The invention discloses fully-automatic microphone assembling equipment, belonging to the technical field of electronic element assembling equipment. The fully-automatic microphone assembling equipment mainly comprises a frame; an assembling worktable is rotationally mounted on the frame; and a clamping and positioning device, a rubber sleeve conveying device, a spring conveying device, a microphone unit conveying device, a loading device and an unloading device which are controlled by an electric-control device are arranged on the periphery of the assembling worktable. With the adoption of the fully-automatic microphone assembling equipment disclosed by the invention, the mechanized operation for assembling microphones is realized, the traditional manual operation is replaced, the production efficiency for assembling the microphones is increased, and thus the fully-automatic microphone assembling equipment is widely applied to the assembling process of the microphones.

The invention relates to a method for preparing a resin grinding wheel used for cutting soft metals. The resin grinding wheel comprises the following components in parts by mass: 25-40 parts of black silicon carbide, 20-40 parts of white corundum, 25-40 parts of brown aluminum oxide, 4-8 parts of phenolic resin liquid, 0.5-1 part of carbon black, 8-12 parts of potassium fluoroaluminate and 12-16 parts of phenolic resin powder. By virtue of the black silicon carbide, white corundum and brown aluminum oxide abrasive compound, the black silicon carbide abrasive compound has high hardness, most of the granules are needle-shaped and flak, and the resin grinding wheel has sharp cutting edges and has unique advantages while cutting soft metal materials. Moreover, due to low content of the binding agent phenolic resin and low green body forming density, low product thickness can be achieved, so that abrasive particles can be removed from the grinding wheel in time so as to expose new cutting edges in the cutting process of the grinding wheel along with blunted grinding of the abrasive particles. Moreover, the resin grinding wheel is low in forming density and high in porosity, chips can be effectively removed, and blockage of the pores of the grinding wheel is avoided, so that continuous and high-efficiency cutting of the grinding wheel is realized.

The invention discloses a line-releasing and rod-protecting apparatus of a power transmission line tower structure. The upward side of an end cover is connected with an insulator on a telegraph pole while the downward side is fixed with a sleeve and a fixed arm; the upper end of the fixed arm is tightly attached to the outer wall of the sleeve while lower end is equipped with a check block in an adjustment manner up and down; the upper end, which can slide up and down, of a suspension column is mounted in the sleeve; the lower end of the suspension column extends out of the bottom of the sleeve and is connected with a flying ring; an elastic apparatus is arranged in the sleeve, and the elastic apparatus is compressed between the top of the suspension column and the bottom of the sleeve; anopening is formed in the bottom of the flying ring; the upper end of a vertical rod is fixed with one end of the flying ring; the two ends of a connecting rod mechanism are hinged with the upper andlower ends of the vertical rod respectively; and the connecting rod mechanism and the vertical rod jointly form a right triangle capable of closing the opening of the flying ring. The line-releasing and rod-protecting apparatus is capable of flexibly adjusting the wire releasing on-load critical value, applicable to multi-direction stress, reliable and safe, simple in operation implantation, and capable of enabling the wire to be released in time.

The invention discloses anti-frosting glass fibre bag-type dust removal equipment for a drying machine. The anti-frosting glass fibre bag-type dust removal equipment for the drying machine comprises an upper box body and a lower box body; the upper box body is separated from the lower box body through a partition mesh; an air inlet is formed in the lower box body, and an ash hopper is arranged at the lower part of the lower box body; a gravity dust separator is arranged at the air inlet; a dust discharging opening is formed in the bottom of the gravity dust separator; a gas outlet is formed in the top of the gravity dust separator; an air outlet and a maintenance gate are arranged on the upper box body; a plurality of filtering bags are arranged in the upper box body; the surface of each filtering bag is coated with a super-hydrophobic coating. According to the anti-frosting glass fibre bag-type dust removal equipment for the drying machine, the surface of each filtering bag is coated with the super-hydrophobic coating, and the filtering bags are arranged vertically, so that settled particles which are filtered by the surfaces of the filtering bags can fall off in time; the surfaces of the filtering bags are prevented from being blocked by the settled particles; the filtering bags can filter flue gas continuously, so that the filtered gas meets national environmental protection emission standards; meanwhile, the anti-frosting glass fibre bag-type dust removal equipment for the drying machine does not require an ash cleaning device.

The invention discloses an extrahigh-voltage inverter noise reduction device with automatic pressure relief and high-temperature fusing functions. The extrahigh-voltage inverter noise reduction devicecomprises fixing parts, hot melting and noise reduction plate parts, hot melting and noise reduction plate and hot melting support combination parts, an explosion venting part and a hot melting anti-falling net. Fixed cross beams and firewalls are arranged on the two sides of the upper portion of inverters correspondingly. The fixing parts are set up between the fixed cross beams and the firewalls. Moving cross beams are erected above the inverters. The hot melting and noise reduction plate parts are arranged between the moving cross beams. The explosion venting part is erected on the periphery of a sleeve ascending base of the inverters. The hot melting anti-falling net is arranged below the hot melting and noise reduction plate parts, the hot melting and noise reduction plate and hot melting support combination parts and the explosion venting part. The extrahigh-voltage inverter noise reduction device with the automatic pressure relief and high-temperature fusing functions has the advantages of being capable of automatically relieving pressure and timely melting-off under the effect of inverter explosion pressure and fire high temperature and good in safety performance.

The invention relates to a self-destruction screw, which comprises a stud bolt with external threads. The self-destruction screw is characterized in that a blind hole is formed on a screw head; a detonator, a retainer and a fixing cover are sequentially arranged in the blind hole; and the electrode end of the detonator is connected with a detonating switch through an electric wire. The self-destruction screw has the advantages of simple structure and low manufacturing cost. Vehicle windows fixed by the self-destruction screw can drop in time during emergency, so that the time for passengers to escape is saved.

The invention discloses a slow-release filler and a preparation method thereof, which belongs to the technical field of sewage treatment, the sustained-release filler comprises a first nylon skeleton,a second nylon skeleton, rotary biofilm culturing groups, a carbon source and a coating film, the first nylon skeleton is detachably matched with the second nylon skeleton; a spherical skeleton is formed after assembly; the rotary biofilm culturing groups are detachably and rotatably connected into the first nylon skeleton and the second nylon skeleton; wherein the first nylon skeleton, the second nylon skeleton and the rotary biofilm culturing group are respectively provided with a plurality of accommodating holes communicated with the outside, the accommodating holes are filled with carbonsources, and orifices of the accommodating holes are sealed by the coating films, the preparation method of the slow-release filler comprises the following steps: S1, injection molding, S2, filling the carbon sources, S3, curing the carbon sources, and S4, assembling. According to the slow-release filler and the preparation method thereof, the carbon source utilization rate is high, the biofilm culturing capacity is high, and falling of aged biofilms is facilitated.

The invention discloses an activated sludge biomembrane composite sewage treatment device, which comprises a stirrer, a biological carrier component and a biological carrier bracket. The stirrer is asubmersible stirrer, and the stirrer is arranged at the bottom of a sewage tank. the biological carrier component is fixed on the biological carrier bracket at an interval of 150 mm-220 mm. The biological carrier bracket is arranged in the sewage tank. The top of the biological carrier bracket is 1.0 m-1.4 m away from the top of the sewage tank, and the bottom of the biological carrier bracket is0.6 m-1.0 m away from the bottom of the sewage tank. Under the action of the stirrer, on the one hand, the activated sludge is suspended in the sewage, and on the other hand, the activated sludge canbe filled into gaps of the biological carrier to form a biomembrane by layer-by-layer covering, so that the biomembrane and the suspended activated sludge coexist in the sewage, and the impact load resistance and the pollutant degradation capability of the device are greatly improved.

The invention relates to a stone refining and rolling device. The stone refining and rolling device comprises a supporting base, a temporary store assembly and an outer shell; the supporting base serves as a supporting foundation body of the device, and a supporting plane is arranged at the upper end of the supporting base; the temporary store assembly is arranged at the upper part of the supporting base and comprises at least four guide columns perpendicular to the supporting plane and first elastic parts arranged on the guide columns in a sleeving mode; and the bottom of the outer shell is provided with a sliding hole corresponding to the position of a guide shaft, and the outer shell is slidably connected with the guide shaft and elastically supported through the first elastic part. Stones are extruded through a second crushing plate, the stones extrude the lower end of a first crushing plate, the upper end of the first crushing plate swings in the direction close to the second crushing plate, at the moment, the second crushing plate is in the rising trend to rub the stones upwards, and the first crushing plate has the trend of stirring the stones downwards, therefore, the stones can be prevented from moving upwards, the strength of rubbing the stones by the second crushing plate is enhanced, and various factors are combined, so that the stones are crushed more easily.

The invention discloses a geotechnical board anti-seepage wall self-bursting dam flood diversion gateway, and belongs to the field of the national defense for dealing with the water attack of water conservancy projects and dams of a special spillway project. The geotechnical board anti-seepage wall self-bursting dam flood diversion gateway comprises a geotechnical board anti-seepage wall self-bursting dam (1) and a flood diversion gateway (2) which are designed according to the theory of disaster prevention and reduction of dams in a quantized manner, the geotechnical board anti-seepage wall self-bursting dam (1) includes a full-section geotechnical board anti-seepage wall self-bursting dam, and a geotechnical board anti-seepage wall sub-dam rush-leading self-bursting dam and is suitable for any type of flood diversion way, the flood diversion gateway (2) includes a single-stage geotechnical board anti-seepage wall self-bursting dam flood diversion gateway, and a multi-stage geotechnical board anti-seepage wall self-bursting dam flood diversion gateway, the geotechnical board anti-seepage wall is based on geotechnical board type to select geotechnical board reverse scale folding water stop, geotechnical board closed water stop, geotechnical board single-film cloth reverse scale water stop, geotechnical board double-film cloth reverse scale water stop, geotechnical board I-shaped board single-film lap-joint water stop and closed water stop corresponding types. The geotechnical board anti-seepage wall self-bursting dam flood diversion gateway is suitable for automatic flood diversion of any water type dam, the structure is simple and inexpensive, and the management is convenient.