83results about How to "There will be no problem of falling off" patented technology

The invention discloses a metal diffusion barrier layer between a flexible metal substrate and a back electrode of a solar battery, and a preparation method thereof. According to the invention, nickel coating layers and nickel-molybdenum alloy coating layers are alternately plated on a flexible metal substrate, and then subjected to rapid heat treatment to obtain a multi-layer coating of a laminar structure to serve as a diffusion barrier layer, wherein the nickel coating layers are directly connected with the metal substrate; and the nickel-molybdenum alloy coating layers are connected with the back electrode. Based on material selection and the design of the multi-layer laminar structure, the coating layers can effectively barrier the diffusion of substrate elements to a battery body, and no new harmful element is introduced. Meanwhile, the metal diffusion barrier layer has a higher bonding force with the substrate and the back electrode, and can be manufactured with low cost and high efficiency in the continuous electroplating manner.

A method of producing a connecting rod with a bearing, in which both a process for producing a bearing separately from a connecting rod and a process for assembling the bearing to the connecting rod can be eliminated to reduce processes, labor, and costs to produce the connecting rod. A hollow cylindrical molding (38) of a bearing metal material is inserted and fitted, as an inner member, inside an inner surface of a circular large end hole (18) of a large end section (12) of a connecting rod (10). A tapered surface (30) of a rotary pressing tool (26) is pressed, while rotating, to the hollow cylindrical molding (38) to heat and soften the hollow cylindrical molding (38), causing the hollow cylindrical molding (38) of the bearing metal material to plastically flow axially and radially outward, whereby a bearing metal layer (22) is directly joined and formed on the inner surface of the large end hole (18).

The invention relates to a developing box, which comprises a shell, an end cover assembly arranged on the shell, and a drive assembly located at one longitudinal tail end of the shell. The drive assembly comprises a power transmission device arranged in the developing box and a motion rod assembly combined with the power transmission device; the motion rod assembly comprises a first motion rod anda second motion rod in a mutually combined mode; the first motion rod is combined with the power transmission device; the end cover assembly comprises a first end cover fixedly connected with the shell and a second end cover fixedly arranged on the first end cover; the second end cover comprises a second end cover body, and a through hole and a second guiding part arranged on the second end coverbody; the power transmission device penetrates through the through hole; the first motion rod is guided by the second guiding part.

The invention discloses a medical dressing which comprises a dressing body, wherein the dressing body consists of medical cotton fiber and chitosan fiber. According to the medical dressing disclosed by the invention, a structure in which the dressing body is made from medical cotton fiber and chitosan fiber is skillfully adopted; since the medical cotton fiber is a traditional wound dressing in direct contact with the wound and is a safe traditional wound dressing, and the application of chitosan fiber in direct contact with wound lasts for 20 years and the safety is well verified, the medical dressing disclosed by the invention is safe and reliable to use, realizes a good effect in terms of liquid absorption, bleeding stopping, pain relieving, wound healing promotion and the like, and also has the functions of preventing adhesion and reducing scars while avoiding the problem of fiber shedding in the using process; moreover, the medical dressing disclosed by the invention is simple in structure, convenient to prepare, low in cost and easy to accept by the patients, thereby being an ideal functional medical dressing.

The invention relates to a moxa-moxibustion tool and a preparation process thereof. The moxa-moxibustion tool comprises a moxibustion tool and a moxibustion core, wherein an air hole is formed in the bottom end of the moxibustion tool, the moxibustion tool is of a cylindrical structure, the moxibustion core is fixed to the upper portion of the inner cavity of the moxibustion tool, the upper surface of the moxibustion core protrudes out of the moxibustion tool, and the portion, in contact with a moxa cake, of the inner surface of the moxibustion tool is a flame-retardant face and is of a wedge surface structure. The moxibustion core is the moxa cake, the maximum size of the bottom surface of the moxa cake is 1-5 times of the height of the moxa cake, the bottom surface of the moxa cake is a cambered surface protruding upwards, the center of the upper surface of the cambered surface protrudes and is higher than the upper surface of the cambered surface, the bottom surrounding of the protrusion is downwards sunken and is lower than the upper surface of the moxa cake, a blind hole with a downward opening is formed in the moxa cake, and the hole bottom of the blind hole is located in the protrusion. The invention also correspondingly provides the preparation process of the moxa-moxibustion tool. The moxa-moxibustion tool is aligned during the moxa cake releasing, releasing and installation of the moxa cake can be simultaneously achieved, and working processes are saved. A central hole of the moxa cake is the blind hole, and the blind hole blocks an upper-end outlet of a flue, so that moxibustion smoke only flows downward, and the moxibustion utilization rate is improved.

A technology for manufacturing the integrally formed tube having joint part includes such steps as preparing an elastic tube according to the shape of target tube, sleeving it on a forming rod, assembling mould to form a cavity between the inner surface of mould and forming rod, pouring thermoplastic resin in the said cavity, demoulding and removing forming rod.

This invention discloses a phthalocyanine copper or cadmium sulfide multiple-layer compound film photosensitive layer and its process method. The said phthalocyanine copper or cadmium sulfide multiple-layer compound film comprises the first glass base plane, first transparent conductive film, phthalocyanine copper or cadmium sulfide multiple-layer compound photosensitive layer, opaque layer, reflecting medium layer, first crystal position layer, crystal layer, second crystal position layer, second transparent conductive film and second glass base plane. The wide responding light spectrum can ensure it get high-resolution ratio in the utility of the crystal light valve and high contrast and the wide read-in light responding spectrum.

The invention provides a nanometal coating for a fuel cell metal pole plate, the nanometal coating comprises a substrate layer composed of a metal pole plate, at least one non-noble metal layer is deposited on the substrate layer, a hybrid layer alternatively composed of a non-noble metal and a noble metal is deposited on the non-noble metal layer, the noble metal is located at the outermost sideof the nanometal coating, thickness of the non-noble metal is 1-500nm, and in the hybrid layer composed of the non-noble metal and the noble metal, mass ratio of the non-noble metal to the noble metalis 1-90:100, and the coating thickness of the hybrid layer is 1-100nm. The invention also provides a preparation method of the nanometal coating for the fuel cell metal pole plate. In comparison withthe existing coating, by coating provided by the invention, dosage of the noble metal can be reduced remarkably, surface conductive performance and anti-corrosion performance of the metal pole platecan be enhanced, and endurance quality of the fuel cell pole plate is improved.

The invention discloses an oxygen supply device for respiratory medicine departments. The oxygen supply device comprises a medicinal oxygen bottle. A quick gas pressure drain valve is communicated to a lower position of the right side wall of an antibacterial purifying box body through a first gas delivery pipe. A second gas delivery pipe extends to the bottom of an inner cavity of a gas humidifying box through 90-degree leftward bending. A drug feeding pipe is communicated to the side wall of the middle body of a third gas delivery pipe obliquely. A corrugated pulling hose is connected to the front body of the third gas delivery pipe integrally. An elastic ventilative clamp is arranged on the left side face of the body of an oxygen inhalation mounting base. A lower jaw fixing belt is arranged on the left side wall of the body of the oxygen inhalation mounting base. The oxygen supply device has the advantages that patients are prevented from inhaling hazardous substances to endanger their physical health and feel greatly comfortable during inhalation; patients' conditions are effectively relieved with the assistance of drug therapy, and oxygen inhalation stability is further guaranteed.

The invention discloses a copper-doped activated carbon composite material and a preparation method thereof. The composite material comprises doped element copper and petroleum coke-based activated carbon. The preparation method comprises the following steps: (1) uniformly mixing a copper-containing precursor compound, petroleum coke and an activating agent, and activating; and (2) washing and drying the sample obtained in the step (1) to obtain the composite material. In the copper-doped active carbon composite material prepared by the method, the active metal copper is highly dispersed on the surface of the active carbon in a reduction state, and the combination effect with the active carbon is relatively strong, so the problem of metal falling cannot occur, and the preparation method issimple and feasible.

The invention provides a silk elastic yarn. The silk elastic yarn aims at solving the detects in the prior art and comprises a middle core yarn with a linearly arranged middle core and elastic resilience; the outer side wall of the middle core yarn are wound and wrapped with eight or more cocoon silks; the eight or more cocoon silks are parallel to each other. The preparation method of the silk elastic yarn comprises the steps that S1, qualified raw material cocoons are selected; S2, cocoon stripping and cocoon selecting are conducted; S3, the silk thread end of a mature cocoon is led out after end groping and end picking are conducted on a mature cocoon, and two or more silk thread ends of mature cocoons adhere to the drawn middle core yarn; S4, the mature cocoon adhering to the middle core yarn is spun, and twisting sheathe operation is conducted on twisted yarns; S5 detection is conducted on the thickness of yarns after twisting sheathe operation is conducted; S6, drying operation is conducted on detected yarns for two times, and the dried yarns are wound on a silk tube, wherein rough fault removing and manual end joining operation are conducted in the tube winding process. According to the silk elastic yarn, the silk elastic yarn is not fractured and can be rebounded when the silk elastic yarn is drawn.

The invention relates to a moxa cake and a preparation process thereof. The moxa cake is formed by pressing moxa, the whole moxa cake is cake-shaped, the maximum size of the bottom surface of the moxa cake is 1-5 times of the height of the moxa cake, the center of the upper surface of the moxa cake protrudes and is higher than the upper surface of the moxa cake, the bottom surrounding of the protrusion is downwards sunken and is lower than the upper surface of the moxa cake, a blind hole with a downward opening is formed in the moxa cake, and the hole bottom of the blind hole is located in the protrusion. The preparation process incudes a cold-press method or a hot-press method. A central hole of the moxa cake is the blind hole, the hole bottom of the blind hole is located in the protrusion of the moxa cake and is higher than the upper surface of the moxa cake, the blind hole is kept unchanged at a preliminary burning stage, moxa produced during moxa burning covers the hole bottom when the hole bottom of the blind hole is burned, so that the inside of the moxibustion smoke is always the blind hole, the upper end blocking a flue of the blind hole is opened, the moxa smoke only flows downward, and the moxibustion utilization rate is improved.

The invention discloses a chainless double fly linkage lever direct drive bicycle, and belongs to the technical field of bicycle manufacturing. Flywheels and sheaves in the same direction are arrangedon both sides of the rear axle of the bicycle, inner grooves for placing wire ropes and outer grooves for placing belts are formed in the sheaves, fixing hinge chains for lever fulcrums are arrangedin the middle and rear portions of the left crank and the right crank, the left and right cranks are alternately rotated and revolved around the fixing hinge chains, the forced reset of the left and right cranks is achieved by the wire rope linkage, the sheaves are driven by the belts to drive a rear wheel to rotate, the structure is novel, and the driving principle is clear. Compared with a traditional bicycle structure, it is not necessary to provide components such as chains, center shafts, gear wheels, chains and chain guard plates, which not only does not cause the chains to fall off, butalso saves manufacturing costs, the problem of a tradition bicycle driving dead position is laborious is solved by the lever principle, the riding is very labor-saving, and the riding efficiency is greatly improved.

The invention relates to the field of the tire mold manufacturing, aims to solve a problem that tire hair occurs at the cured tire side wall in the prior art, and provides a manufacturing method of animage-text assembly, the image-text assembly and a tire mold side plate. The manufacturing method of the image-text assembly comprises the following steps: forming an image-text block slot on an image-text box, pouring molten metal with different thermal expansion coefficient from the image-text box in the image-text block slot, and naturally forming the image-text assembly with the image-text block. Since the thermal expansion coefficient of the molten metal is different from that of the image-text block, a gap used as an exhaust channel is formed between the image-text block formed by cooling the molten metal and the image-text box, thereby realizing the pore-free venting at the character or pattern of the tire side; and the tire hair cannot occur at the character or pattern of the cured tire side. The tire mold side plate provided by the invention comprises the image-text assembly manufactured through the manufacturing method of the above image-text assembly. The tire mold providedby the invention comprises the above tire mold side plate.

The invention provides a gable waterproof structure through which flashing pieces of a roof panel can prevent wind, falling is avoided, the structure is simplified and cost is reduced. The gable waterproof structure comprises a gable bending steel angle fixed to the inner side of a gable, a steel angle bracket, a sliding support, the upper flashing piece and the side flashing pieces, wherein the first end of the steel angle bracket is fixed to the gable bending steel angle, and the second end of the steel angle bracket passes the upper portion of the gable and extends to the outer side of the gable; the sliding support is installed on the gable bending steel angle; the upper flashing piece is fixedly installed on the sliding support, connected with the roof panel and used for shielding the upper portion of the gable; the side flashing pieces are located below the upper flashing piece and fixedly installed on the steel angle bracket.

The invention relates to a power transferring apparatus. The power transferring apparatus has a rotation axis L2 and comprises a power receiving part, a moving part and a driving gear; the moving partcomprises a body, a bump projecting from the outer surface of the body and a sliding groove extending towards the outer surface from the inner surface of the body, and the power receiving part is combined with the sliding groove; the driving gear comprises a cylindrical gear body, a gear cavity formed by encircling the gear body, and an accommodating groove extending in a direction away from therotation axis L2 from the side wall of the gear cavity; a step surface is formed between the accommodating groove and the gear cavity; and the power receiving part can be stretched and retracted in the direction of the rotation axis L2, when the power receiving part stretches, the bump is disposed on a first position, when the power receiving part is retracted, the bump is disposed on a second position closer to the step surface than the first position, the power receiving part is connected with the driving gear in the power transferring apparatus in a close fit manner rather than the connection of a ball-shaped body, so that in the transportation process of a processing box, the problem that the moving receiving part is separated from the processing box can be avoided.

The invention discloses an anti-vibration ultraviolet germicidal lamp comprising a lamp wick packaged in the end portion of a lamp tube. The lamp wick comprises a left molybdenum sheet, a right molybdenum sheet, a third molybdenum rod, a fourth molybdenum rod, and a filament. The left molybdenum sheet and the right molybdenum sheet are insulated from each other. One end of the third molybdenum rod is connected with the bottom of the left molybdenum sheet. The other end of the third molybdenum rod is connected with a left connection electric pole. One end of the fourth molybdenum rod is connected with the bottom of the right molybdenum sheet. The other end of the fourth molybdenum rod is connected with a right connection electric pole. The filament comprises a first molybdenum rod, a second molybdenum rod, and a tungsten filament. One end of the first molybdenum rod is connected with the top of the left molybdenum sheet. One end of the second molybdenum rod is connected with the top of the right molybdenum sheet. The tungsten filament is wound around the first molybdenum rod spirally. When being wound around the second molybdenum rod, the tungsten filament, the tungsten filament is still wound spirally at a hollow part. The tungsten filament cannot be in poor contact with the molybdenum rods at both sides and may resist to vibration so as to well prevent the ignition point of the germicidal lamp from being prone to flickering in vibrating environment.

The invention discloses a multifunctional data line, comprising a data connecting line, a connecting plate, a charging joint and a protective sleeve. The protective sleeve includes a first mounting shell, the second mounting shell and the third mounting shell, the first mounting shell is provided with a first mounting groove, the inner side wall of the first mounting groove is provided with firstinternal threads, the second mounting shell is provided with a second mounting groove, the inner side wall of the second mounting groove is provided with second internal threads, the third mounting shell is provided with a third mounting groove, and the inner side wall of the third mounting groove is provided with third internal threads. The invention can simultaneously connect a plurality of mobile devices with different interfaces by setting a protective sleeve, which is convenient for users to use. Moreover, the protective sleeve with thread connection is arranged on the data transmission line, so that the problem of falling-off of the protective sleeve does not occur, and the protective sleeve can realize the protection of a Type-C interface, thus the Type-C interface is not damaged, and the service life of the data transmission line is prolonged.

The invention provides a fiber-free reinforced fluorine-containing resin-based high-frequency copper-clad plate. The fiber-free reinforced fluorine-containing resin-based high-frequency copper-clad plate comprises a fluorine-containing resin substrate positioned in the middle and copper foils positioned on two sides of the fluorine-containing resin substrate, the fluorine-containing resin substrate is prepared by the following steps: S1, adding a coupling agent into a 1-80wt / v% inorganic filler solution, stirring and reacting at 20-100 DEG C for 0.5-72 hours, filtering and drying to obtain a modified inorganic filler; s2, adding the modified inorganic filler obtained in the step S1 into hydroxylated fluorine-containing resin, heating to 220-350 DEG C, and stirring for 5-18 hours to obtain a fluorine-containing resin mixture; s3, adding the fluorine-containing resin mixture prepared in the step S2 into an injection molding machine, setting the temperature of a charging barrel to be 250-380 DEG C, the temperature of a mold to be 180-260 DEG C and the injection molding pressure to be 50-80 Mpa, and cooling at normal temperature to obtain a fluorine-containing resin substrate; the fiber-free reinforced fluorine-containing resin-based high-frequency copper-clad plate disclosed by the invention has the advantages of low hygroscopicity, low dielectric constant, low dielectric loss, high copper foil peel strength, relatively good adhesiveness and low possibility of falling off.

The invention discloses conductive powder used for preparing conductive silver paste. The conductive powder is characterized by comprising silver particles, glass powder and silicate cement, wherein the diameter of the silver particles is less than or equal to 20 microns; based on the total weight of the conductive powder, the conductive powder comprises 70-80% by weight of the silver particles, 2-15 by weight of the glass powder and 5-23% by weight of the silicate cement. The invention also discloses conductive silver paste; and the conductive silver paste is characterized by being formed by mixing the conductive powder and a solvent; the conductive powder is the conductive powder according to any of claims 1-5; the solvent is a mixture of water and ethanol; and the weight ratio of the conductive powder, the water and the ethanol is 1: 0.2-0.3: 0.02-0.05. According to the invention, the conductive powder can be preserved for a long time, the conductive silver paste is more environment-friendly and healthier, and a conducting circuit prepared from the conductive silver paste is not easy to fall from a printed material.

The invention provides a manufacturing method of a semiconductor power device, and the method comprises the steps: providing an IGBT wafer of which the front process is completed, and the front process comprises the steps: forming a front metal layer; carrying out Taiko thinning on the back surface of the IGBT wafer; performing ion implantation and annealing on the back surface of the IGBT wafer to form a collector region; placing the front surface of the IGBT wafer on an electrostatic chuck; growing an oxide layer on the back surface of the IGBT wafer; taking out the IGBT wafer from the electrostatic chuck; plating target metal on the front metal layer by using a chemical plating process; removing the oxide layer on the back surface of the IGBT wafer; and forming a back metal layer on the back of the IGBT wafer. According to the method, the oxide layer is formed on the back surface of the IGBT wafer before the chemical plating process is carried out, so that the back surface of the wafer is protected by the oxide layer, the problem that metal on the back surface falls off due to the IGBT chemical plating process is solved, and wafer fragments or machine contamination are avoided.

The invention provides a method for forming a thin film type keyboard group unit. The thin film type keyboard group unit is formed by binding an upper layer thin film and a lower layer thin film. Themethod comprises the following steps: firstly, quickly forming keystroke convex parts and convex points on second surfaces of an upper thin film band and a lower thin film band by ultraviolet cured resin by using a rolling means and an ultraviolet irradiation means; and secondly, performing pattern printing on a second surface of the upper layer thin film by using a printing means so as to form the thin film type keyboard group unit provided with patterns after binding the upper layer thin film and the lower layer thin film. Thus, the method for forming the thin film type keyboard group unit has the advantages of low cost, high efficiency and high production precision.

The invention discloses a carbon black colored polyethylene glycol terephthalate color master batch and a preparation method thereof. The color master batch comprises the following raw materials in parts by weight: 6-8 parts of modified carbon black, 40-50 parts of modified polyethylene glycol terephthalate and 3-5 parts of an antistatic synergist, the modified carbon black, the modified polyethylene glycol terephthalate and the antistatic synergist are subjected to hydrolytic condensation under an alkaline condition, so that the modified carbon black and the antistatic synergist are connected to a molecular chain of the modified polyethylene glycol terephthalate, and the modified carbon black and the antistatic synergist can be uniformly dispersed in the modified polyethylene glycol terephthalate; meanwhile, a side chain contains an organosilicone polymerized long chain, the organosilicone polymerized long chain is compounded with the carbon black, so that the mechanical property of the color master batch can be greatly improved, meanwhile, a large number of quaternary ammonium salt structures exist on the surface, a layer of antistatic film can be formed on the surface of the color master batch, and the film is connected with a main chain of a color master batch molecule; the problem that the anti-static film falls off cannot occur.

The invention discloses an outer shell of an instrument for well logging during drilling and the instrument for well logging during drilling. The outer shell of the instrument for well logging duringdrilling comprises a housing with a tapered thread, a first strain sensor, a second strain sensor, a first comparison circuit and an alarm. The first strain sensor and the second strain sensor are arranged on the housing at an interval and are both disposed nearby the tapered thread; the distance between the first strain sensor and the tapered thread is smaller than the distance between the secondstrain sensor and the tapered thread; the first strain sensor and the second strain sensor are both connected to an input end of the first comparison circuit, and an output end of the first comparison circuit is connected to the alarm. According to the outer shell of the instrument for well logging during drilling, the instrument for well logging during drilling can be effectively prevented fromfalling off due to loose connection, the drilling cost can be saved, and protection of the environment is facilitated. According to the instrument for well logging during drilling applying the outer shell of the instrument for well logging during drilling, the oilfield drilling cost can be effectively saved, and protection of the environment is facilitated.

The invention provides a moulding bed for casting a furnace lining with a radiator and an application method thereof. The moulding bed comprises a steel template, a radiator mould and a blind plate. During using the moulding bed, the first edge of the radiator mould and the second edge of the blind plate are both fitted to the surface of the steel template to reduce the leakage of castable from aninterface between the first edge or the second edge and the steel template during casting. During casting the furnace lining with the radiator using the moulding bed, firstly, a special material withhigh blackness coefficients is poured inside the radiator mould to form the radiator, and then a high-temperature resistant ceramic material is poured on the surface of the steel template to form thefurnace lining, so that the radiator and the furnace lining are integrally formed, and finally, the furnace lining with the radiator is formed. The radiator and the furnace lining are integrally formed, and therefore, the radiator cannot fall off during using the furnace lining.