520results about How to "Avoid holes" patented technology

The invention relates to a liquid continuous slag-removal fixed bed gasification furnace and a gasification method thereof, the liquid continuous slag-removal fixed bed gasification furnace is characterized in that: the liquid continuous slag-removal fixed bed gasification furnace from top to bottom in turn comprises a raw material bin, a material lock hopper, a furnace body, a plurality of gasification agent nozzles, a slag-removal device, a molten slag quenching chamber and a slag lock; the raw material bin is funnel-shaped, the lower end of the raw material bin is in fastening connection with the upper end of the raw material lock hopper; the raw material lock hopper is in fastening connection with an upper end port of the furnace body, the upper part of the furnace body is provided with a crude gas outlet, the furnace body inner wall located below the crude gas outlet is provided with a layer of furnace lining; the plurality of gasification agent nozzles are in fastening connection with the lower part of the furnace body and are arranged uniformly along the circumferential direction of the furnace body, the outlet of each gasification agent nozzle passes through the furnace body furnace wall and the furnace lining and extends into the furnace body; the slag-removal device is installed in the furnace body located below the furnace lining, the lower end of the furnace body is in fastening connection with the upper end of the molten slag quenching chamber, and the lower end of the molten slag quenching chamber is in fastening connection with the upper end of the slag lock. The gasification agent nozzles adopt a single channel structure only conveying a gasifying agent, the service life of the gasification agent nozzles is improved, and an overflow type slag pool can effectively ensure the smooth slag removal, and improves the operation efficiency of the fixed bed molten slag gasification furnace.

The invention discloses a large-viewing-angle image distortion correction and processing method. The large-viewing-angle image distortion correction and processing method comprises the steps of S1, calculating a distance between any point in a corrected image and the center of the image, namely ideal image height; S2 adopting an improved distortion rate formula to calculate the distortion rate D corresponding to the point; S3, calculating distortion point coordinates according to the distortion rate D; S4 adopting a bilinear interpolation method and ideal coordinates corresponding to the obtained distortion point coordinates to perform interpolation so as to obtain a corrected image. A distortion correction approximation model of the method can conveniently obtain the distortion rate of each point, accordingly the corresponding distortion point coordinates can be calculated according to the coordinates of ideal points, and a 'void' phenomenon produced on the corrected image is avoided. The large-viewing-angle image distortion correction and processing method does not need a specially manufactured template to calibrate lens distortion parameters, accordingly a large number of iterative operation during parameter calculation is omitted, and the method is simple and easily achieved in hardware. In addition, when the image size is large, the calculation time can be effectively shortened, and the universality is good.

A buffer device of a hydraulic oil cylinder is provided with the hydraulic oil cylinder (1), a connecting block (7), a solenoid valve (3) and an energy accumulator (6). A first end of the connecting block (7) is connected with the hydraulic oil cylinder (1), a second end of the connecting block (7) is connected with the energy accumulator (6), the connecting block (7) is provided with a through hole (70) enabling a rodless cavity of the hydraulic oil cylinder and the energy accumulator to be communicated, and the solenoid valve is used for achieving non-communication and communication of the through hole (70). When the through hole of the connecting block is communicated, the hydraulic oil cylinder has the buffer effect. When the through hole is not communicated, the hydraulic oil cylinder is located in a rigidity state.

To manufacture an antidazzle antireflective film which is free of boring and has good transfer precision when a surface of an antireflective layer of an antireflective film is made uneven through embossment processing. Manufactured is the antidazzle antireflective film by nipping the antireflective film 30 with an embossing roller 34 and a backup roller 36 and transferring the unevenness shape of the embossing roller 34 to the antireflective layer 24. Here, the modulus of linear elasticity and hardness of the backup roller 36 are made smaller than those of the embossing roller 34.

The invention discloses an air swinging structure and an air conditioner. The air swinging structure comprises a clamp plate assembly, a plurality of swinging blades, a transmission connecting rod anda driving element, wherein the clamp plate assembly and a casing are detachably connected; the clamp plate assembly forms an accommodating space and is provided with a plurality of installing holes communicating with the accommodating space; the plurality of swinging blades are positioned at an air outlet and are arranged at intervals in the length direction of the clamp plate assembly; each swinging blade comprises an air guide plate and a crank handle; the air guide plate is positioned in the air outlet; the crank handle is of an integral structure with the air guide plate; the crank handlecomprises a driving part and an installing shaft connected with one end of the driving part; the driving part is positioned in the accommodating space; the installing shaft passes through one corresponding installing hole and is connected with the air guide plate; the transmission connecting rod is accommodated in the accommodating space and is rotationally connected with the other end of the driving part; the driving element is connected with the transmission connecting rod; the driving element drives the transmission connecting rod to drive the swinging blades to rotate around the installing shaft. The air swinging structure provided by the invention is the air swinging structure with the advantages of low cost and high assembly efficiency.

The invention aims at disclosing a specially-made vacuum smelting furnace and a preparing technology for a SiC particle enhanced aluminum-base composite material. A certain component proportion and a special smelting casting technology are adopted. The vacuum smelting furnace is adopted in the technology, overall closing and vacuum-state charging can be achieved, the inner temperature of melt can be measured in real time, the particles accurately fall into a melt vortex center with a certain speed and are evenly distributed in the melt under powerful stirring, the functions of deoxygenation and degassing can be effectively achieved on the composite material melt, and therefore the composite material uniform in component, low in porosity, high in mechanical performance and excellent in heat-conducting property can be produced through the technology. The crucible lifting type vacuum smelting furnace comprises a crucible composite device and lifting platform system, a stirring device and lifting platform system, a charging device, a vacuum system, a handheld lifting thermocouple, a sealing system and an electric control system.

The invention discloses an automobile composite material plate spring assembly and an assembly method of same. The automobile composite material plate spring assembly is characterized by comprising a composite material plate spring, a shock absorber bracket, an axle and a pressure plate, wherein the pressure plate is arranged on the upper surface of the middle of the composite material plate spring; the composite material plate spring is arranged on the shock absorber bracket; the shock absorber bracket is arranged on the axle; and two U-shaped bolts are used for wholly connection and fixation. The automobile composite material plate spring assembly and the assembly method of same realize light weight of a device, the assembly steps are simple and convenient, and meanwhile the composite material plate spring has the advantages of high specific strength, high specific elasticity, corrosion resistance, and designable material performance. Besides, the positioning and connection and fixation modes of the main parts of the automobile composite material plate spring assembly are smartly designed, the composite material plate spring and the parts nearby can be correctly fixed at corresponding locations of a chassis of an automobile body, and the damage to the composite material plate spring caused by center punching can be avoided.

The invention discloses a strip seeding production line for raising hybrid rice seedlings. The production line is composed of a front part, a rear part and various mechanisms, wherein a driving motor, a drive device, a fertilizer applying mechanism, a subsoil mechanism, a brushing and flattening mechanism and a groove rolling mechanism are arranged on a front rack; a driving motor, a drive device, a seeding mechanism, a water spraying mechanism and a soil covering mechanism are arranged on a rear rack; and all the mechanisms are driven in a stepless synchronization manner and are respectively provided with a regulating device, so that the capacity of each mechanism can be regulated according to different needs. After an empty seedling disk passes an inlet, the drive devices convey the seedling disk into the production line, and thus the seedling disk can be driven at the bottom of each mechanism, wherein the fertilizer applying mechanism applies a thin layer of seedling strengthening agent fertilizers at the bottom of the seedling disk; the subsoil mechanism spreads subsoil on the fertilizers distributed in the seedling disk; the brushing and flattening mechanism brushes the subsoil on the surface of the seedling disk so as to flatten the subsoil; the groove rolling mechanism rolls 18 trapezoidal grooves in the subsoil on the seedling disk; the strip seeding mechanism quantificationally sows sprout seeds into the grooves in time by virtue of a strip seeding device; the water spraying mechanism firstly sprays atomized water to position the seeds in the grooves and then sprinkles water for the secondary time so as to ensure that the water is completely permeated into the subsoil; and the soil covering mechanism overlays a thin layer of fine soil on the seeds to prevent the exposure of the seeds so as to ensure that the seeds are not influenced, so that the one-time seeding is finished by the production line. The production line provided by the invention is suitable for strip seeding in the raising of the hybrid rice seedlings.

The invention relates to the technical field of PCB manufacturing, in particular to a fine-line PCB manufacturing method. The fine-line PCB manufacturing method sequentially comprises a press-fit step, a drilling step, a copper foil removal step, a copper deposition step, a step of transferring an outer layer image, a pattern plating step, a micro-etching step and a common back-end work procedure. Outer layer copper foil arranged on a multi-layer board in a press-fit mode is removed, copper deposition is carried out on a prepreg layer, pattern manufacturing and pattern plating are directly carried out on a copper deposition layer, and press-fit of a copper foil layer is omitted, so that a base copper layer is thin, a micro-etching mode is adopted in the outer layer etching process, and therefore the phenomenon of serious lateral erosion of the two sides of a line is avoided. The lateral erosion quantity of the two sides of the line is less than 1 micrometer and is reduced by ten times or more compared with that of the existing manufacturing process, and the manufacturing quality of a fine-line PCB is guaranteed. The smooth surface of the copper foil and the prepreg are bonded together in a press-fit mode, the binding force between the copper foil and the prepreg is reduced, the copper foil and the prepreg are poorly bonded, as a result, the hole collapse problem can be avoided in the drilling process, and the copper foil can be torn off after the drilling step.

The invention relates to a flaky medium processing system and a method for detecting the real-time position of flaky medium. Multiple detection positions are arranged in a medium transfer channel of the flaky medium processing system, and one position sensor is arranged at each detection position for detecting the arrival and departure events of the flaky medium in the detection position; and the flaky medium processing system and the method are characterized in that the position sensor at the first detection position along the movement direction of the flaky medium is provided with at least three scattered detection points, each detection point outputs an independent output signal, and each detection point is configured with two counters for obtaining the time attribute of the output signal of the detection point; and the position sensor at each of other detection positions is configured with one counter for obtaining the time attribute of the output signal of the common position sensor.

The invention discloses an intermetallic compound bonding method and structure for three-dimensionally packaged chip stacking. The method comprises the steps that firstly, solder and metal bumps on the two sides of the solder are subjected to thermal treatment to conduct a brazing reaction, and then intermetallic compounds are formed, wherein the temperature gradient is formed between the metal bumps on the two sides of the solder during thermal treatment. When the intermetallic compound bonding structure for three-dimensionally packaged chip stacking is prepared through the method and the metal bumps are single crystals or have preferred orientation, the formed intermetallic compounds have single orientation in the direction of the temperature gradient. In the bonding process, the temperature gradient is introduced to promote metal atoms to conduct thermal migration, forming and growing of interfacial intermetallic compounds are accelerated, and the bonding efficiency is improved remarkably; the intermetallic compounds grow continuously from the cold end at a relatively low temperature to the hot end at a relatively high temperature, and holes can be effectively prevented from existing in the formed intermetallic compounds.

The invention provides a graphene-based foamed ceramic insulation wallboard, which is made of the following components: potassium sodium feldspar, ceramic waste residue, graphene, vermiculite, high-temperature co-solvent, expanded graphite, zirconia, clay, stable agent and debonding agent. Using potassium sodium feldspar and ceramic waste slag as the base material, adding graphene and vermiculite to make the board more lightweight, high-strength, thermal insulation, and improve the performance of the board such as fire resistance, insulation and weather resistance, using expanded graphite as a foaming agent, using high temperature The foaming process can better control the density, pore distribution and pore size of the board, achieve better heat preservation and light weight effects, and make a board with remarkable anti-aging, corrosion resistance, heat insulation, sound insulation, waterproof and impervious, fireproof and fireproof. , lightweight, high-strength, non-cracking, green and environmental protection and other comprehensive performance in one foam lightweight wallboard.

The invention provides a 3D printer. The 3D printer comprises a motion platform, a printing head, a printing platform and a high-temperature printing container, wherein the motion platform is arranged above the high-temperature container; the upper end of the printing head is connected onto the motion platform; the lower end of the printing head extends into the high-temperature printing container; the high-temperature printing container is filled with high-temperature liquid; the lower end of the printing head is positioned above a liquid surface of the high-temperature liquid; and the motion platform is used for driving the printing head to move according to preset printing track in the high-temperature printing container. According to the 3D printer provided by the invention, specific heat capacity and density of liquid are greater than those of air, and temperature uniformity of liquid is easily controlled, so that the motion platform and other electronic elements inside a housing can be prevented from being affected by the high temperature. The invention further provides a printing method for the 3D printer. Contact between a printed workpiece and oxygen gas is reduced, holes and unevenness are avoided, and quality of the printed workpiece is improved.

The invention relates to a movable bin single-seed precision hill seeder and belongs to the technical field of a movable bin hill seeder. A plurality of seed falling ports (23) are uniformly distributed on the outer periphery of a roller (2). The roller (2) and an end cover (16) are buckled into one whole body and are arranged on a plate shaft (10) through a bearing (9). One end face of the roller (2) is provided with a switching device for a nozzle (1). A plurality of seed supplementing spoons (17) are uniformly distributed on the inner wall of the end cover (16) in a ring-shaped shape. A discharge plate (3) is arranged in the roller (2). A seed plate (4) is buckled inside the discharge plate (3). A cavity between the discharge plate (3) and the seed plate (4) is a seed charging bin (11). A cavity between the discharge plate (3) and the end cover (16) is a seed storage bin (14). The end face of the discharge plate (3), which is close to the seed storage bin (14), is provided with a seed inlet (21) and a seed overflowing port (19). A seed charging mechanism (18) is arranged in the seed charging bin (11). The movable bin single-seed precision hill seeder has the advantages of functions of automatically feeding, overflowing and cleaning seeds, accurate seeding capacity, no cavity, strong practicality and the like.

The invention relates to the technical field of information processing, in particular to a forest fire smoke image detection method based on total bounded variation, which is characterized by comprising the following steps: 1, inputting an image in a video sequence; 2, adopting an image blocking method to score the TBV values of the blocked images, searching suspected smoke blocking areas from a blocking result image through two times of comparison of the TBV values, and finally, extracting the final suspected smoke areas through fusion clustering processing of feature data; 3, performing smoke motion feature analysis on the suspected smoke area by adopting an inter-frame difference method, if the suspected smoke area moves, judging the suspected smoke area as a fire smoke image, and giving a fire alarm; and if the suspected smoke area does not move, returning to video input to carry out the processing flow of the next image. According to the invention, errors caused by tedious calculation are avoided, the output result is accurate and stable, and the detection effect is good.

The invention relates to a back-penetrated and ultrasonic tool head supported friction stir welding device. The device comprises a friction stir welding machine with a long needle stirring head, an ultrasonic tool head with a hole groove and a support platform, an amplitude change rod, a transducer and an ultrasonic generator. The ultrasonic tool head with the hole groove and the support platformis directly contacted with areas to be welded at the back parts of workpieces; the tool head provides a support effect, and directly applies ultrasonic energy into a plastic shearing layer around a stirring needle; and an ultrasonic softening effect is used for reducing the material plastic deformation resistance, improving the fluidity and influencing the material deformation behaviors to preventholes in joints. The long needle stirring head matched with the hole groove is adopted to penetrate through the back parts of the workpieces to thoroughly prevent non-welding defects of root parts. Through the mode, the ultrasonic energy utilization rate is increased, the plastic deformation and the fluidity of materials at the root parts of welding lines are improved, the formation of the root parts of the welding lines is improved, the gains of the welding lines are refined, and the mechanical performances and the critical welding speed of the joints and the production efficiency are improved.

The invention discloses a potato-double cropping rice triple cropping and multiple cropping method in a double cropping rice area in the middle reaches of the Changjiang River. Through reasonable matching of potato-early season rice-late rice varieties, a soil tillage technology and a covering method of spring potato cultivation are improved so as to achieve 1500 kg of triple-cropped grains per mu in the rice field. The spring potato cultivation comprises the following steps: (1), selecting improved varieties; (2) rotary tillage and soil preparation; (3) applying enough base fertilizers; (4) timely seeding; (5) rice straw mulching; (6) field management; (7) timely harvesting. The potato-double cropping rice triple cropping and multiple cropping method has the key point that through reasonably matching crop varieties in three seasons, the soil tillage technology and the covering method of the potato cultivation are improved, so that the potato cultivation ecological environmental conditions can be improved. By applying the method, not only can the early maturity of potatoes be prompted, the contradiction of potato-double cropping rice triple cropping and multiple cropping stubble cohesion tension in a double-cropping rice area in the middle reaches of the Changjiang River is effectively solved, and is the yield increase potential of the double-cropping rice field fully exerted, but also the potato quality is improved, the nutritive value of the potatoes is improved, and meanwhile, the economic benefits of peasants are improved.

The invention discloses a long vehicle low-temperature steaming technology for fiber textiles and equipment. The technology comprises the following steps of (1) preparing gray cloth, (2) singeing, (3) desizing, (4) scouring, (5) rinsing and (6) drying. The invention further discloses long vehicle low-temperature steaming equipment for fiber textiles. The equipment comprises a scouring mechanism. The scouring mechanism has an immersion barrel and a steaming case connected with the immersion barrel, wherein the steaming case is provided with a case body equipped with an accommodating cavity; a steaming cavity steaming and heating textiles and a temperature balancing cavity preventing steam coagulation and on the upper part of the steaming cavity are disposed in the case body; the case body is equipped with a first steam supplying assembly and a second steam supplying assembly both providing high-temperature steam to the steaming cavity and the temperature balancing cavity. The steaming equipment can effectively reduce equipment energy consumption, save energy and improve production efficiency; and the long vehicle low-temperature steaming technology has short circulating, high efficiency, and can reduce water and energy use.

The invention relates to the technical field of connection of building walls, in particular to a rotatable pre-embedded external member and a prefabricated assembly type wall structure. The rotatablepre-embedded external member comprises a pre-embedded C type anchor bar, a pre-embedded box set and a U-shaped reinforcing steel bar, wherein the pre-embedded C type anchor bar comprises a first vertical part and a first transverse connecting part; the U-shaped reinforcing steel bar comprises a second vertical part and a second transverse connecting part; the first transverse connecting part is arranged in the pre-embedded box set; the first vertical part penetrates through a through hole and is arranged on the outside of the pre-embedded box set; the second vertical part is rotatably connected with the first transverse connecting part; and the U-shaped reinforcing steel bar is rotatably stored in the pre-embedded box set. The rotatable pre-embedded external member is simple in structure,convenient to construct, and convenient to mount, transport and store; the construction speed is increased; the engineering cost is reduced; integrity of a connection part between shear walls is high,and the stress property is good; anti-seismic and safety characteristics are achieved; field wet operation is reduced; and environmental protection is facilitated.