397results about How to "Guaranteed depth" patented technology

The invention discloses a method for manufacturing a hollow sodium inflating valve with a closed disc end, belongs to a production method of valves of internal combustion engines, and particularly relates to the method for manufacturing the hollow sodium inflating valve with sodium serving as a coolant. According to the method, a pre-workblank with the end shaped like the head of garlic of a bar is formed by the thin and long bar through an electric pier; then, the valve is forged and pressed into the shape of a gas outlet valve workblank through the one-time forging and pressing process in the forging procedure, wherein the valve workblank forming process is in a high temperature state, simple in process route, low in manufacturing cost and high in efficiency. An inner hole of the valve is machined through a deep hole gun-drill, and therefore the diameter of the inner hole, the depth of the inner hole, the roughness of the inner hole, the coaxiality of the inner hole and the evenness of the wall thickness can be ensured, the machining rhythm is quick, efficiency is high, and cost is low. By means of the method of utilizing steps at the welding point of a disc end face sealing cover and the valve, welding defects are reduced, and welding strength is high.

The invention relates to a concrete track slab prefabricating construction method of a CRTS I type slab ballastless track. The method comprises the following steps of: (1) weaving a steel reinforcement framework; (2) mounting the steel reinforcement framework in a steel mould, wherein the steel mould is internally sprayed with a separant and provided with a pre-embedded sleeve; (3) penetrating a PC (Prestressed Concrete) steel rod and mounting an anchor backing slab; (4) pre-tightening the PC steel rod; (5) mounting a hoisting nut, a spiral bar and a grounding terminal nut; (6) testing an insulation resistor; (7) pouring concrete and vibrating; (8) plastering the surface; (9) maintaining by using steam; (10) dismounting fixing bolts of a pre-embedded piece; (11) demoulding: cleaning the pre-embedded piece and a template, closing the mould, spraying the separant in the steel mould and mounting the pre-embedded sleeve for later use; (12) overturning and examining shape: turning over the CRTS I type slab ballastless track contrete track slab obtained in the step (11) and examining the shape and the appearance; (13) stretching by prestress; (14) sealing the anchor; (15) maintaining in a water pool; and (16) storing in a slab storage area.

The invention relates to a dyeing method for multilevel-color jean yarns. The dyeing method comprises the following steps: carrying out modification treatment on yarns by adopting a cationic modifying agent; padding 1-2 paths of pigment printing paste on the treated yarns at a room temperature and drying; then carrying out continuous rolling and dyeing by indigo blue and sulfur dyestuff or overdyeing of the indigo blue and the sulfur dyestuff. The jean yarns produced by the dyeing method are bright in color and luster, good in color fastness, pure in colored light and low in room-temperature dyeing power consumption; the quantity of indigo blue dyeing grooves is reduced by priming a high-fastness pigment; a process flow is shortened, the pollution discharge is reduced and the production cost is reduced.

The invention discloses a novel environment-friendly bactericide composition and a preparation method thereof. The composition comprises a component A including a chlorine dioxide solid releasing agent and a peroxide oxygenation agent, and a component B including a non-oxidation bactericide, a surfactant, a flocculating agent, a heavy metal ion complexing agent and the like, wherein the components A and B generate oxidation bactericides such as chlorine dioxide, nascent oxygen, dissolved oxygen and the like, the non-oxidation bactericide, a flocculating water purification agent and the heavy metal ion complexing agent in water. The products produce strong effects of sterilization, mildew resistance, fresh keeping, alga removal, mud peeling, scale removal, dredging, deodorization, water purification, cleaning, blenching, decolorization and the like. The composition is widely applied in the field of purification of living water bodies and control and treatment of water environment pollution. According to the composition and the preparation method and using method thereof, water of different levels is used as a medium, so that the equipment power in production is low, three wastes are avoided, energy is saved, the environment is protected, dedicated equipment and power are not needed in use, the operation is simple, the use is convenient, and the composition is suitable for unpowered field operation of any site and any occasion.

The invention discloses an electric fault detections system for a vehicle, and the system comprises a voltage collection module, a current collection module, a temperature collection module, an energy monitoring and processing module, a voltage difference monitoring module, a control processing module, a communication module, and an alarm module. For a power module and all power consumption modules, the system firstly obtains the product of current and voltage; secondly carries out the integration of the product of current and voltage in a set time period, and obtains the electric energy or reference electric energy; thirdly monitors the power utilization and hidden conditions of the power module and all power consumption modules through the electric energy or reference electric energy in all time periods. According to the invention, the system carries out the multiplication of the current and voltage signals to generate power, and then carries out the time integration of the power, i.e., carrying out the amplification and judgment of small current and voltage signals and weak hidden trouble signals, thereby facilitating the guaranteeing of the monitoring depth of early hidden troubles, and avoiding a condition that a small fault cannot be inspected. The system can achieve the earlier finding of faults and hidden troubles, and guarnatees the safer power utilization of the vehicle.

The invention discloses a cross-platform mobile office system based on a cloud end. The system comprises a register and login module, a company public information and personnel resume module, an enterprise authentication and personal real name authentication module, an enterprise organization structure and authority management module, a message push and instant messaging interface adapter module, an office system platform access interface adapter module, an office system industry matching module, an account password-free login authorization interface module and a database adaption module. The register and login module is used for enabling enterprises and individuals to register and log in the mobile office system; the company public information and personnel resume module is used for displaying and searching company public information and personnel resume information; and the enterprise authentication and personal real name authentication module is used for real name authentication of the enterprises and the individuals. The mobile office system is based on the cloud end and can be in cross-platform use; and the office system is high in timeliness and can realize quick and efficient office work.

The invention discloses a webpage uniform resource locator (URL) classification and identification method and device used for improving URL classification accuracy and depth and improving efficiency under the premise that data amount required by URL classification is reduced as much as possible. The method includes analyzing a plurality of specific URLs with the identical domain name, determining a main path and sub paths contained by the URLs, building a directory tree according to the determined main path and sub paths as the directory of each stage, dividing each URL into the corresponding directories in the directory tree according to all paths contained in the URLs, determining keywords in webpages that the URLs correspond to aiming at the directory of any stage in the directory tree, and determining the class of a first keyword to be the class of the URLs under the directory when determining that the ratio of the number of the webpages with identical first keyword and the total number of the webpages in the directory is higher than the set threshold.

The invention discloses a static blasting and energy-gathering device. The static blasting and energy-gathering device comprises a main body protective barrel which is formed by splicing two circular-arc-shaped steel templates which are not connected, wherein a connecting line of middle points of the two circular-arc-shaped steel templates is perpendicular to a pre-splitting line; a splitting angle is arranged on the outer part of each circular-arc-shaped steel template, and the tip end of the splitting angle and the pre-splitting line are positioned on the same straight line. A method for blasting by applying the static blasting and energy-gathering device comprises the following steps: 1) drilling; 2) placing a static stone-breaking and energy-gathering device; 3) pouring stone breaker slurry for breaking stones; 4) recycling. According to the static blasting and energy-gathering device and the blasting method provided by the invention, the problems of long crushing time, high dosage for crushing and the like can be solved, the static crushing and blasting time is shortened, the dosage per crushing volume is reduced, and the crushing efficiency of a static crushing agent is improved.

The invention discloses a vulnerability detection method and device, relates to the technical field of Internet, and solves the problem that vulnerability scanning cannot be performed completely by a vulnerability detection method in the prior art. The method comprises the following steps: acquiring a link address clicked by a user to serve as a torrent link address, and downloading a corresponding torrent webpage according to the torrent link address; capturing sub-link addresses included in the torrent webpage, and downloading corresponding sub-webpages according to the sub-link addresses; performing vulnerability detection scanning on the torrent webpage and the sub-webpages; and determining whether vulnerabilities exist in the webpages or not according to a scanning result. The vulnerability detection method is mainly applied to breadth and depth detection of the vulnerabilities in order to achieve the effect of comprehensively detecting the vulnerabilities.

The invention relates to an anhydrous stemming for a large and medium sized blast furnace and a preparation method of the anhydrous stemming. The stemming comprises the raw materials of bauxites aggregate and fine powder, silicon carbide aggregate and fine powder, coke, plastic clay powder, asphalt powder and a micro powder additive, the micro powder additive comprises metallic silicon powder, metallic aluminum powder, high-carbon resin powder, alumina micro powder, silica fume, sodium carboxymethyl cellulose and sodium hexametaphosphate in parts by weight, and tar is taken as a binding agent in the producing and stirring processes. The anhydrous stemming realizes high-temperature rapid sintering of the stemming, the binding degree of new and old stemming is strengthened, the capability of resisting scouring of an iron slag of a mud drum of an iron notch is improved, the porosity of the stemming material is low, the compactness of the stemming material is good, the property of resisting corrosion and permeation of an iron slag liquid of the stemming is strengthened, the stemming is favorable for keeping the depth of the iron notch and the stability of the pore size of the iron notch, and can well adapt to the performance requirement of enlargement of the blast furnace on the stemming of the iron notch.

The present disclosure relates to unattended ground sensors for detecting the presence of a pedestrian or vehicle in a monitored area using seismic sensors. Networks of simple and inexpensive sensors are disclosed that may be rapidly deployed. The networks may be formed from a dense array of low cost ground sensors having low sensitivity.

The invention relates to a method and system for tunneling extrahard rock by means of a hydraulic fracturing technology and a tunneling machine. By means of the hydraulic fracturing technology, the extrahard complete rock generates cracks, and therefore the rock integrity is lowered; according to the formation condition, the drilled hole position and the fracturing sequence of a face are designed, a drill rod stretches out of a hole to perform perpendicular punching in sequence on the face, a to-be-fractured section inside the drilled hole is sealed through a packer, high-pressure water is pumped into the to-be-fractured section, the hydraulic pressure is increased continuously, after the hole wall is fractured, cracks are expanded, and pressurizing is stopped after the cracks are expanded to the preset length, the packer together with other fracturing devices is taken out, and the tunneling machine begins tunneling. According to the method and system, the integrity of the rock within the construction range is lowered, the tool abrasion during tunneling is reduced, and the tunneling efficiency is improved.

The invention disclose a casting and welding method of a lead-acid storage battery busbar, which comprises the steps of: sequentially placing a battery pole plate and pole lugs on the same side in tooth sockets of a busbar clamp according to a width direction vertical to the ground; injecting molten lead in a lead melting pot into the busbar clamp, and insulating; and sequentially melting and welding the pole lugs by using a heating rod. According to the invention, when the busbar is welded, the welding and melting depth and the bonding area can be ensured, pseudo welding and over welding are not caused, and the short circuiting of the molten lead can be avoided, therefore, the welding quality of the lead-acid storage battery is ensured, the electric property of the battery is improved, and the service life of the lead-acid storage battery is prolonged.

The invention relates to a seabed excavator with dual functions, which is characterized in that the invention comprises a main framework and a slide body which is arranged on the lower portion of the two sides of the main framework, wherein the framework on the middle portion of the main framework is a water delivery main pipe which is constituted by hollow pipes, and the middle portion of the main framework is provided with a buoyancy and instrument barrel which is provided with an attitude comprehensive monitor system which is connected with a waterborne control chamber and comprises a conventional monitor device, a control circuit, and a sonar-receiving device. The front side and the rear side of the main framework are respectively provided with sonar, and the two sides of the buoyancy and instrument barrel are respectively provided with an axial flow pump which is driven by a motor, the main framework downside of the water delivery main pipe is connected with two rows of nozzles through a water delivery branch pipe, the motor and sonar of the axial flow pump are respectively connected with the control circuit through transmission cables. The invention can be extensively applied to seabed excavating and trench-digging and paving seabed pipelines, and maintenance process of pipelines.

The invention discloses a digital pillow type device for remedying the head sleeping posture by identifying stertor signals, which comprises a pillow body, wherein four air sacs are arranged in the pillow body and respectively connected with a miniature inflator pump and an air pressure sensor; each air pressure sensor is respectively connected with an electric damping exhaust valve; a sound collector for collecting sound is arranged in the pillow body and connected with an amplifying and filter circuit for preprocessing sound signals; the amplifying and filter circuit is connected with a digital signal processing device; and the digital signal processing device is connected with each air pressure sensor and each electric damping exhaust valve. The pillow type device has reasonable structure, does not apply electric stimulus and mechanical stimulus or the limitation of an additional appliance, guarantees the natural sleeping posture and depth of a sleeper, and is more beneficial to the health sleeping.

The invention provides a printed circuit board silk screen hole plugging method. The printed circuit board silk screen hole plugging method comprises the steps: the diameters and the positions of plug holes after compensation are determined; a plug hole film is manufactured and generated according to the diameters and the positions of the plug holes after the compensation; a silk screen board is provided and is coated with photosensitive paste; the silk screen board is exposed through the plug hole film; the silk screen board after exposure is developed and a plug hole screen board is formed; plug hole processing is conducted on a printed circuit board through the plug hole screen board; and thermofixation is conducted on the plug holes of the printed circuit board. The printed circuit board silk screen hole plugging method is capable of guaranteeing high generation efficiency, good product quality and low cost.

The invention discloses a production method of a cavity PCB plate. The method is characterized by comprising the following steps: a. respectively pasting a prepreg at each one of two surfaces of an internal layer core plate provided with a window, wherein both the two prepregs are respectively provided with a window which is aligned with the window of the internal layer core plate; b. pasting an external layer core plate at each surface of the two prepregs respectively; c. respectively arranging an accessory plate provided with a window at each surface of the two external layer core plates, wherein the window of each accessory plate is opposite to the window of the internal layer core plate; d. arranging a stitching pad at each surface of the two accessory plates respectively; e. carrying out lamination, and removing the stitching pads and the accessory plates to form the cavity PCB plate. According to the method, accurate positioning of a position of a cavity in the PCB plate can be realized, a dimension and a depth of the cavity in the plate are accurately ensured, and that a stereo structure of the cavity satisfies a requirement is ensured. The method has the advantages of being simple and effective and convenient enforcement, and is suitable for processing the PCB plate containing the cavity.

The invention discloses a compound tool applicable to high-speed and accurate holing on an aircraft panel. The compound tool is provided with a double-helical side edge, the helical angle of the side edge is 30-40 degrees, a bottom edge is divided into three sections, i.e., a chisel edge, rough machining edges and finish machining edges; the included angle of the two rough machining edges is 120-150 degrees, and the included angle of the two finish machining edges is 60-65 degrees; a dimpling edge is connected with the helical side edge; and after holes are drilled through, the tool is fed continuously, and the dimple machining is finished by utilizing the dimpling edge. The compound tool disclosed by the invention has the advantages that the hole drilling, hole reaming and dimpling can be finished once without need of tool change, and the roughness of the machining surfaces of the holes reaches Ra1.6.

The invention relates to the field of farming machines, in particular to an efficient deep ploughing machine tool with controllable ploughing depth. The efficient deep ploughing machine tool comprises a rack and a rotary tillage mechanism installed on the rack. Plough share sets with adjustable wedge-in angles are arranged on the portion, in front of the rotary tillage mechanism, of the rack in rows. The rack is connected to the tail of a tractor through an upper connecting rod and a lower connecting rod, a quadrilateral structure capable of moving in the vertical direction is formed by connecting parts of the rack and the tractor, and a jacking hydraulic cylinder is arranged in the middle of the quadrilateral structure. One end of the jacking hydraulic cylinder is connected to the position, close to an upper connecting rod connecting point, of the rack, and a cushioning device is arranged at the connecting end. The other end of the jacking hydraulic cylinder is connected to the tail of the tractor, and a stable triangular structure is formed by the jacking hydraulic cylinder and the upper connecting rod. By the adoption of the scheme, the efficient deep ploughing machine tool with controllable ploughing depth is simple in structure and convenient and rapid to operate, can effectively control the ploughing depth, and efficiently completes ploughing work at high quality.

The invention relates to a remote sensing image segmentation algorithm based on a convolutional neural network, and the algorithm comprises the steps: employing ResNet34 pre-training weight parametersas the depth guarantee of a network layer, so as to solve a problem of gradient disappearance when the network layer is deepened; a pyramid pooling module is adopted to aggregate context informationof different areas in the image so as to improve the capability of obtaining global information; designing a loss function by adopting a method of combining a cross entropy loss function and regularization constraints, wherein the cross entropy is used for judging the closeness degree of actual output and expected output in the multi-classification problem; the regularization term can reduce the complexity of the model so as to prevent overfitting and improve the generalization ability of the model. According to the method, the designed composite convolutional neural network algorithm is applied to semantic segmentation of the remote sensing image, so that the speed of information recognition in the remote sensing image and the capture rate of effective information are greatly improved, and the method is of great significance to information analysis of the remote sensing image.

The invention relates to a double-output-shaft gear box, comprising a casing, a driving gear, driven gears, two machining spindles, a bearing base and a front end cover, wherein the driving gear and the driven gears are arranged in the casing, the two machining spindles are arranged in parallel and are partially arranged in two sets of bearings of the bearing base respectively, the inner ends of the two machining spindles are respectively and fixedly provided with the driven gear, the two driven gears are outer-diameter gears and are jointly meshed and arranged inside the driving gear, and the driving gear is an inner-diameter gear and is coaxially and fixedly provided with a connecting shaft. The gear box disclosed by the invention is simple in structure, reasonable in design and suitable for machining two near holes, can be used for effectively increasing the machining efficiency, simultaneously guaranteeing the position and the depth of each hole of a product and further increasing the machining precision and the machining rhythm of the product, and is more suitable for large-batch production.

The invention discloses a step-link shaft superaudio induction quenching method. The step-link shaft comprises a large-diameter shaft and a small-diameter shaft; and a transition round corner is formed between the large-diameter shaft and the small-diameter shaft. The method comprises the following steps: selecting a suitable induction coil according to the large-diameter shaft; packaging the induction coil in a part which needs to be quenched; and rotating the step-link shaft, wherein the input voltage of the induction coil is 380V; the input power of a superaudio induction heating power supply is between 150 and 250KW; and the oscillation frequency of the superaudio induction heating power supply is between 25 and 40 KHZ. The invention also provides a special induction coil of the method. The special induction coil is provided with a bracket, two magnetic conductors and a plurality of groups of coils embedded in grooves of the magnetic conductors; the bracket is provided with an upper conducting surface and a lower heat conducting surface which are arranged in parallel and have arc-shaped cross sections; the two magnetic conductors are respectively arranged on the heat conduction surfaces; and the diameters of the heat conducing surfaces are the same as those of the large-diameter shaft. The step-link shaft superaudio induction quenching method and the special induction coil thereof have the advantages of ensuring the depth of a hardening layer of the step-link shaft, performing self-tempering by using afterheat, reducing a processing cycle and reducing production cost.

The invention discloses a method for manufacturing a reinforced concrete basement external wall. The method is characterized by installing a cork at the two ends of a pull screw with a water stop iron plate respectively when the pull screw is connected with an internal formwork and an external formwork, connecting reinforcing steel pipes to the two ends of the pull screw respectively at the external sides of the internal and external formworks, then pouring a reinforced concrete basement external wall in a conventional way, later, prying out the corks manually so that cork holes can be formed on the surface of the reinforced concrete basement external wall at the moment, cutting off the parts exposed out of the cork holes, of the pull screw, filling and leveling up the cork holes with waterproof mortar and then carrying out waterproof construction on the surface of the reinforced concrete basement external wall by the conventional method. The method has the advantages of construction convenience, high construction efficiency, good waterproof effect, low construction cost and good construction quality, and economic and social benefits can be brought to the enterprises by adopting the method.