27results about How to "Improve effective working time" patented technology

The invention relates to the technical field of tunneling parameter prediction, in particular to a complex stratum TBM tunneling parameter real-time prediction method. According to the technical scheme, the method comprises the steps of data collection and preprocessing, model selection and training, model prediction and evaluation, and result application and feedback. According to the data collection and preprocessing, operation parameters are collected in real time through various sensors on TBM equipment, wherein the operation parameters comprise the cutterhead rotating speed, the penetration degree, the thrust, the torque, the total thrust, the gripper shoe pressure, the propelling speed, the current and the power. Real-time prediction of the TBM tunneling parameters of the complex stratum is achieved by fusing the machine learning algorithm, the tunneling parameters can be optimized in real time, and the construction efficiency is improved; the tunneling process is stabilized to guarantee the engineering quality; tool abrasion is reduced, energy consumption is reduced, and the construction cost is reduced; equipment faults and accidents are prevented, and construction safety is guaranteed; and construction technology innovation can be promoted, intelligent construction management is achieved, the comprehensive benefits of TBM construction are comprehensively improved, and efficient, safe and intelligent development of tunnel (roadway) engineering is promoted.

The invention provides an automatic welding device for a square lithium battery module. The automatic welding device comprises a feeding device, an automatic clamp, a rotary workbench and a welding robot. The battery module comprises a square battery cell, an insulating plate, an end plate and a side plate, and the welding position is the contact part of the side plate and the end plate. The automatic material taking device reciprocates among the part material taking position, the part fixing position, the welding station and the material taking station through the two linear motion modules perpendicular to each other, and the side plates are sucked and clamped through the vacuum suction cups and the fixing plates. The automatic clamp device fixes a battery module through a telescopic air cylinder with a guide rail and a clamp plate, and fixes a side plate through a vacuum chuck and a linear motion module so as to facilitate welding. The welding robot is composed of a mechanical arm and a welding gun and is used for welding parts. The rotary workbench is driven by a motor, the positions of two stations on the workbench can be switched when the rotary workbench rotates by 180 degrees each time, and continuous, efficient and circulating automatic welding operation can be conducted.

The invention relates to the technical field of specialized robot control, and provides an intelligent specialized robot portable image and data integrated remote control system. The system comprises a data acquisition module, a data preprocessing module, a control module, a robot and a battery management module, the data acquisition module acquires data in real time, and the data preprocessing module carries out filtering, denoising and normalization processing; the control module adopts an SRO-control strategy algorithm, combines MDPD-k-means to perform clustering enhancement on a classification scene, optimizes a control strategy to generate a self-adaptive control signal, and ensures high-precision operation of the robot in a complex environment; the battery management module introduces a Sin-CosHM-FDO algorithm to carry out optimization management on a charging and discharging strategy, so that the use efficiency and the service life of the battery are effectively improved; the adaptive capacity and the operation precision of the robot in complex tasks are improved, and the stability and the energy efficiency management of the system are enhanced.

The utility model discloses a walking steering device for a robot, which comprises a steering part connected to the bottom of the robot, and the bottom of the steering part is connected with a walking part. A joint motor with high-precision control is selected, meanwhile, a spigot assembly structure in the transmission process is designed, mechanical errors are controlled to the maximum degree, and therefore position changes of the robot can be accurately controlled no matter walking or steering is conducted. On the field unmanned plant protection equipment, in cooperation with Beidou navigation and image recognition technologies, the precision of the whole equipment in field operation can be controlled to the maximum extent, the damage rate of crops caused by equipment position deviation is greatly reduced, and meanwhile the operation completion rate is increased. The joint motor is matched with the walking machine frame, the overall width of the walking mechanism can be controlled to be small, and therefore the walking mechanism has better adaptability to different crops with different plant spacing and can be widely used and popularized.

This invention relates to a zero-residue multi-stage deflagration fracturing method and system, addressing the problems of existing deflagration fracturing devices, such as well-water pollution, failure to achieve the expected fracturing effect, and low efficiency. The multi-stage deflagration fracturing method includes: Step 1: Preparing the deflagration fracturing charge, central tube, and guide plug in the deflagration fracturing system using a combustible material that is soluble in chloride ions; Step 2: During operation of the deflagration fracturing system, a detonator ignites the central tube and the deflagration fracturing charge; Step 3: The central tube burns, the deflagration fracturing charge deflagrates, and the guide plug burns simultaneously, thus performing multi-stage deflagration fracturing; Step 4: After deflagration fracturing is completed, the residue from the central tube, deflagration fracturing charge, and guide plug falls into the well water, where it dissolves completely, achieving zero residue. To achieve the above method, this invention also proposes two zero-residue multi-stage deflagration fracturing systems.

The present invention discloses an LED flash control circuit and control method capable of detecting water ingress and egress, comprising a power conversion circuit electrically connected to a power source, a single-chip computer system electrically connected to the power conversion circuit, a water ingress and egress detection circuit and a power control circuit, the water ingress and egress detection circuit electrically connected to the single-chip computer system, the single-chip computer system electrically connected to the power control circuit, the power control circuit electrically connected to the light detection circuit, and also comprising a light detection circuit electrically connected to the single-chip computer system, an LED control circuit and a flash frequency setting circuit. The control circuit disclosed in the present invention has the advantages of simple circuit structure, low cost, long effective working time, adjustable LED flash frequency, high reliability, etc. The control method disclosed in the present invention can enable the control circuit to stably and reliably identify water ingress and egress status, thereby extending the service life and effective working time of the equipment.

This invention belongs to the field of supercapacitor technology, specifically relating to a molybdenum oxide-molybdenum disulfide@polytannic acid electrode material, its preparation method, and its applications. Using molybdenum foil as the current collector and electrode, this invention prepares a molybdenum oxide-molybdenum disulfide electrode using electrochemical oxidation and hydrothermal methods. A polytannic acid coating is deposited on its surface to prepare a biodegradable molybdenum oxide-molybdenum disulfide@polytannic acid electrode. This electrode is then sandwiched with a biodegradable gel electrolyte and encapsulated with a biodegradable encapsulation material to construct a biodegradable supercapacitor with self-discharge suppression capabilities. By depositing a polytannic acid coating on the surface of the supercapacitor electrode, its self-discharge behavior is suppressed. The polytannic acid coating can prevent parasitic Faraday reactions of impurity ions on the electrode surface and prevent charge transfer, thereby suppressing the capacitor's self-discharge behavior. Simultaneously, the electrode, electrolyte, and encapsulation material can all degrade in simulated body fluids, potentially opening up applications in implantable medical electronic devices.

The bidirectional sludge feeding pneumatic pump comprises a hollow pump body, sludge feeding channels formed in the side walls of the pump body and an opening and closing mechanism capable of opening or closing the sludge feeding channels, the sludge feeding channels comprise the first sludge feeding channel and the second sludge feeding channel, and the first sludge feeding channel and the second sludge feeding channel are located on the two corresponding side walls of the pump body respectively; the sludge inlet channels have a working state and a non-working state, and when one sludge inlet channel is in the working state, the other sludge inlet channel is inevitably in the non-working state. The two-way sludge feeding pneumatic pump can achieve two-way dredging continuous operation in actual dredging and dredging construction, the pneumatic pump can still conduct normal dredging operation in the reverse traction process of the pneumatic pump, the actual effective working time of the pneumatic pump is greatly prolonged, and the actual working efficiency of the pneumatic pump is improved.

The utility model provides an exhaust device, an exhaust system and wafer processing equipment. The two ends of the air exhaust device are in fluid connection with a machining cavity of the wafer machining equipment and an air duct outside the wafer machining equipment respectively, and the air exhaust device comprises a first air exhaust pipe, a second air exhaust pipe and a third air exhaust pipe, the branch pipe is arranged at the communicating hole of the first exhaust pipe and is in fluid communication with the first exhaust pipe through the communicating hole, and the branch pipe is configured to be connected with the air pressure detector; and the second exhaust pipe is at least partially nested in the first exhaust pipe, the side wall of the second exhaust pipe at least covers the communicating hole, and a buffer gap is formed between the side wall of the second exhaust pipe and the side wall of the first exhaust pipe at the communicating hole, so that the situation that airflow carries machining dust to impact into the branch pipe is avoided. According to the technical scheme, the airflow speed at the branch pipe is remarkably reduced, vortex is effectively prevented, and dust deposition of the branch pipe and the pressure measuring air pipe is avoided.

The present application relates to chain tensioner technical field, especially to a kind of hydraulic chain tensioner for electric automobile engine, including fixed seat, hydraulic seat is slidably fitted on fixed seat, tensioning sprocket is rotatably connected on hydraulic seat, oil tank is fixedly connected on the side of fixed seat, oil extraction seat is fixedly connected on oil tank, transmission mechanism is rotatably connected on oil extraction seat, oil liquid processing seat is fixedly connected on oil tank, automatic decontamination mechanism is rotatably connected in oil liquid processing seat, arc filter screen is fixedly connected in oil liquid processing seat, by setting automatic decontamination mechanism on arc filter screen, the effective working time of arc filter screen can be extended in the use process of hydraulic chain tensioner, prevent arc filter screen from being blocked due to impurity accumulation, ensure the fluency of oil, not only can effectively improve the stability, reliability and maintenance efficiency of system, also can prevent pressure fluctuation or tensioner jam caused by arc filter screen blockage.

This utility model discloses a multi-station horizontal hydraulic press for cold extrusion. The upper and lower columns of the machine body are connected at both ends by a crossbeam. A worktable is located inside the crossbeam at one end of the machine body, and a slider is located inside the crossbeam at the other end. The slider and the worktable share the same horizontal axis. A feeding beam, running through the slider's front and rear directions, is located in the middle of the slider's internal height direction. Feeding cylinders are symmetrically fixed on the front and rear sides of the slider, with the piston rods of the two feeding cylinders connected to the ends of the feeding beam. Guide devices are symmetrically located near both ends of the feeding beam. Multiple forming stations are located in the slider's width direction. Each forming station is equipped with a feeding rod copper sleeve, and a feeding rod is inserted into each sleeve. The inner ends of each feeding rod are screwed into corresponding screw holes in the feeding cylinders, achieving synchronous feeding at each station. This equipment realizes multi-station continuous forming and synchronous demolding of cold-extruded stepped shafts, with low investment, small footprint, and high efficiency.

This utility model discloses a building fire simulation training device, including an upper simulation area and a lower simulation area, both constructed using shipping containers. The lower simulation area includes a furniture fire simulation training room, a kitchen fire simulation training room, an electrical fire simulation training room, and an oil fire simulation training room. The outer wall of the oil fire simulation training room has a gas storage chamber, and a gas delivery pipeline is installed on the gas storage chamber, one end of which is connected to the gas storage chamber. The gas delivery pipeline surrounds the outer wall of the lower simulation area. A bed fire model is installed in the furniture fire simulation training room directly opposite the igniter; a kitchen fire model is installed in the kitchen fire simulation training room directly opposite the igniter; and an electrical fire model is installed in the electrical fire simulation training room directly opposite the igniter. This utility model provides a variety of training scenarios and good training results, with the upper simulation area used for comprehensive fire simulation training and the lower simulation area used for real fire simulation training.

The invention discloses an unmanned aerial vehicle mounting measurement calibration method based on a Fresnel light source, and the method comprises the steps: calculating the external parameters of an unmanned aerial vehicle during the execution of mounting photographing flight according to the measurement calibration task demands; obtaining calculation data of the external parameters; operating the plurality of unmanned aerial vehicles to fly to a preset position for parking, setting the first unmanned aerial vehicle as a base point position unmanned aerial vehicle, and setting the plurality of other unmanned aerial vehicles except the base point position unmanned aerial vehicle as calibration position unmanned aerial vehicles; turning on a Fresnel light source of the photoelectric pod of the unmanned aerial vehicle at the base point position, and rotating the unmanned aerial vehicle in the angular velocity direction relative to the base point position; and after the unmanned aerial vehicle at any calibration position captures the encoded photoelectric pod Fresnel light source at the base point position, the relative position relation between the unmanned aerial vehicle at the base point position and the unmanned aerial vehicle at the current calibration position is calculated. According to the invention, no extra calibration target needs to be added, and calibration of a long-distance target airspace before measurement is realized; calibration is rapid in the airborne state, and the effective working time of the unmanned aerial vehicle is prolonged.

The invention relates to a servo positioning control method for a molding machine control system. In the process of the servo motor executing a positioning instruction, the method makes a real-time judgment on the actual torque of the servo motor. When the actual torque exceeds a set torque threshold, the operation of the entire molding machine will not be stopped immediately, but the duration of the actual torque exceeding the torque threshold will be calculated to form a torque buffer period, so that the positioning instruction or the operation of other components can have time to continue to be executed. Only when the actual torque exceeds the limit time specified by the torque threshold, the current positioning instruction will be cleared and a forced stop instruction will be issued to the servo controller, forcing the servo motor to stop and issue an alarm message, and an interrupt request will not be directly issued once the torque threshold is exceeded, triggering an alarm and stopping the operation of the entire molding machine, thereby reducing the frequency of the molding machine alarm shutdown and maintenance restart, extending the effective operation time of the molding machine, and reducing the shutdown loss of the molding machine.

This invention discloses a waste filtration and collection device for a swimming pool underwater cleaning robot, comprising: a shell with an inlet channel and an outlet channel; the inlet channel having a confluence channel and two suction channels; the two suction channels are located at the bottom of the shell and converge to the lower end of the confluence channel; the upper end of the confluence channel extends into the inner cavity of the shell and divides the inner cavity into front and rear waste compartments; the outlet channel has a drain channel and two filter channels; the drain channel is located at the top of the shell, with a water pump impeller installed at the drain outlet at the upper end of the drain channel, and its lower end confluences and connects to the upper ends of the two filter channels; the lower ends of the two filter channels are equipped with filter screens, which correspond to the inlets of the front and rear waste compartments respectively; both ends of the confluence channel are gradually expanding openings, with the upper end guiding the flow direction towards the front and rear filter screen areas respectively. This invention can effectively reduce the flow resistance of the entire channel, reduce the power consumption of the swimming pool cleaning robot, and thus extend the effective working time of the robot.

The invention relates to the field of electric power transmission equipment inspection, in particular to overhead transmission line unmanned aerial vehicle inspection equipment which comprises an unmanned aerial vehicle, landing plates are fixedly installed on the lower portion of the unmanned aerial vehicle in a bilateral symmetry mode through supporting rods, fixed supporting plates are fixedly installed on the upper portions of the landing plates, and the fixed supporting plates are of inclined structures gradually inclining towards the middle of the unmanned aerial vehicle from bottom to top. According to the unmanned aerial vehicle, the unmanned aerial vehicle can be hung on the overhead power transmission line by adopting the moving rod to drive the first grooved wheel on the moving rod, the rotor wings of the unmanned aerial vehicle are closed for routing inspection, and the unmanned aerial vehicle can be hung on the overhead power transmission line, so that the unmanned aerial vehicle can be hung on the overhead power transmission line, and the routing inspection efficiency is improved. Therefore, the power consumption of the unmanned aerial vehicle is greatly reduced, the effective working time of the unmanned aerial vehicle is prolonged, the inspection efficiency is further improved, the unmanned aerial vehicle can be prevented from being blown off by sudden strong wind in a mountainous area by hanging the unmanned aerial vehicle, and the safety of the unmanned aerial vehicle is ensured.

The utility model belongs to the technical field of sewage filters, and particularly relates to a sewage filter which comprises a filter bin body, a water inlet end and a water outlet channel, a fixing plate is fixedly connected to the inner wall of the filter bin body, a water drainage notch is formed in the fixing plate, and a rotary carrier plate is rotationally connected to the inner wall of the bottom end of the filter bin body. A plurality of receding notches are formed in the rotary carrying plate, filter screens are installed on the inner walls of the receding notches, a plurality of telescopic push rods are installed in the rotary carrying plate, and the output ends of the telescopic push rods are fixedly connected with U-shaped scraping plates. Sewage is intercepted alternately through a plurality of filter screens, so that when one filter screen is cleaned and subjected to impurity removal, the other filter screen can continue to perform interception and filtration work, and the effective working time of the device is prolonged; and garbage impurities on the filter screen are pushed out of the device from the impurity discharging notch through the U-shaped scraper, so that the filter screen can be cleaned to deal with the next filtering work.

This invention discloses a transformer core silicon steel sheet cutting device, relating to the field of transformer core silicon steel sheet cutting technology. It includes an upper and lower longitudinal cutting shaft arranged parallel to each other and rotatable relative to each other. Multiple disc cutters for cutting silicon steel sheets and multiple spacers for supporting and separating the disc cutters are staggered on both the upper and lower longitudinal cutting shafts. A lubrication mechanism is located on the feeding side of the longitudinal cutting mechanism, an anti-escape mechanism is located on the discharge side of the longitudinal cutting mechanism, and a blade adjustment mechanism is located on the upper longitudinal cutting shaft. The advantages are: by integrating the lubrication and anti-escape mechanisms, "precise lubrication" and "efficient recovery" are achieved in the cutting process, reducing the frequency of downtime and blade replacement due to tool wear, thereby significantly extending the overall service life of the tools. Combined with online backlash monitoring and the rapid axial fine-tuning function of the blade adjustment mechanism, it can quickly compensate for the decrease in accuracy caused by natural tool wear, extending the effective working time within a single tool replacement cycle.

The utility model discloses an automatic punching device, which relates to the technical field of punching devices and comprises a punching seat, a punching top plate is arranged above the punching seat, a movable vertical plate is fixedly connected to the rear side of the bottom of the punching top plate, and a hollow circular plate is fixedly connected to the front side wall of the movable vertical plate. The inner cavity wall of the hollow circular plate is rotationally connected with a rotating disc, the interior of the rotating disc is slidably connected with a punching rod, and the bottom end of the punching rod is fixedly connected with a punch; according to the automatic punching device, the rotating disc is matched with the hollow circular plate and the stepping motor to drive the punching rod to rotate, and then the punching rod is matched with the hollow arc block through the connecting circular plate, so that the punches and the hydraulic cylinder are rapidly connected, the corresponding punches are conveniently and rapidly replaced, the effective working time of equipment is prolonged, and the working efficiency is improved. And the downtime caused by replacing the punch is reduced, so that the overall production efficiency is improved.

The utility model discloses a novel displacement imaging mechanism of side-mounted short cantilever belongs to machine vision detection technical field, including camera, lens, actuator, light source, V type fixed block and mounting plate, the camera with the lens passes through transition sheet and is installed on the actuator, and with the actuator realizes up and down movement, the actuator is motor, screw, guide rail slider integrated packaging structure, and the mounting direction of actuator is perpendicular with the mounting plate and is in vertical layout, the V type fixed block is locked on the mounting plate of actuator, and the linear contact is formed with the cylindrical surface of lens through V type surface to fix lens end, the light source is set up on the lower plate, and provides illumination for imaging. Solve the problem such as long cantilever, poor imaging stability, limited application scene in the prior art.

The invention discloses ship ballast water treatment equipment, and belongs to the field of sewage treatment.The ship ballast water treatment equipment comprises a treatment part, the treatment part comprises a rotational flow part, a tangential liquid inlet formed in the outer wall of the rotational flow part, a sand settling opening formed in the lower end of the rotational flow part and an overflow pipe fixed to the inner wall of the rotational flow part; the upper end of the overflow pipe is fixedly connected with the inner wall of the rotational flow part; the filter cartridge is arranged at the contraction section of the overflow pipe, and when the second liquid discharge connector is closed, liquid forcibly entering the overflow pipe passes through the filter cartridge, so that small organisms which cannot be separated by cyclone are intercepted; a first spiral flow guide flange in the expansion section can force fluid to rotate at a high speed when the fluid enters the overflow pipe, so that water flow in the contraction section is tangentially swept along the surface of the filter cartridge, and silt and organisms which attempt to be attached to the filter cartridge are continuously stripped off; the effective working time of the filter cartridge is prolonged, and the differential pressure rising speed is slowed down.

The utility model relates to a ground cleaning robot, include: robot main body, wipe ground module, integrally detachably installed at the bottom of robot main body, including support, rotatoryly support on the support and can with a pair of rotary connector joint a pair of brush disc seat, detachably attached to a pair of brush disc seat a pair of cleaning pad, be used for to a pair of cleaning pad supply clean water a pair of nozzle, with a pair of nozzle fluid communication first fluid connector and act on a pair of cleaning pad's scraper water collection component, scraper water collection component is configured to be able to remove the superfluous liquid from a pair of cleaning pad and collect the liquid, scraper water collection component includes the water collection plate of being attached to the support, the pair of scraper of being located on the water collection plate and being able to with a pair of cleaning pad's rear portion's lower surface interference contact and second fluid connector, the water collection plate is configured to be able to guide the liquid falling on it to the second fluid connector place, water supply unit and sewage recovery unit.

A power tool includes a housing, a driving device, a cutting device and an oil storage device. The driving device, the cutting device and the oil storage device are all mounted in the housing. The driving device may drive the cutting device to work, and the oil storage device provides lubricating oil to the cutting device. The oil storage device includes an oil reservoir and an oil pump, the oil reservoir is connected with the oil pump through a first oil pipe, and a filtering structure is arranged between the first oil pipe and the oil reservoir to filter the lubricating oil entering the oil pump from the oil reservoir. The oil reservoir provides lubricating oil to the cutting device through the oil pump. The oil storage device of the disclosure may effectively improve a clogging problem of the oil pump and improve a duration life of the power tool.

The application belongs to the technical field of emergency alarm, and particularly relates to an emergency communication method and system based on a mobile robot dog, which comprises the following steps: collecting multi-modal alarm data at a disaster site by the mobile robot dog, constructing a Shannon-Fano tree after encoding the data into a character sequence; screening an enabled parent node and allocating a corresponding character according to the distribution characteristics of the corresponding characters of the leaf nodes under the parent node in the sequence; when the continuous multiple characters in the character sequence are all the characters corresponding to the leaf nodes under the same enabled parent node, generating compressed data by using a prefix-suffix code word encoding mode to realize efficient compression of key alarm information; and transmitting the compressed data to a disaster emergency command center. The application improves the transmission efficiency of key alarm information at the disaster site by using an optimized encoding strategy, and provides timely and accurate information support for disaster emergency decision-making.

This invention relates to the field of electrostatic powder coating technology and discloses a powder coating device, including a spray gun nozzle, a plurality of spray gun nozzles arranged at intervals, and a baffle plate disposed between two adjacent spray gun nozzles. The baffle plates on both sides of the spray gun nozzles are symmetrically arranged, and each spray gun nozzle is installed on the same horizontal plane. The ends of two adjacent baffle plates are connected, and the ends of each baffle plate are located on the same horizontal plane, which is parallel to the horizontal plane where the spray gun nozzles are located. The powder sprayed from the spray gun nozzles passes through the ends of the baffle plates on both sides and can perform spraying on the material to be coated in a manner that meets the spraying requirements. Its advantage is that it can intercept uneven powder spray and improve the uniformity of powder coating.

The utility model belongs to the technical field of waste gas treatment devices, and particularly relates to a waste gas treatment device for gold smelting, which comprises a waste gas treatment device body, a waste gas inlet pipe and a purified gas exhaust pipe, a notch is formed in one side of the waste gas treatment device body, a rotating box is rotatably connected to the inner wall of the notch, and a plurality of catching bins are formed in the rotating box. Intercepting nets are arranged in the multiple capturing bins, the multiple capturing bins are sequentially communicated with the inner space of the waste gas inlet pipe, and the bottom end of the purified gas exhaust pipe is fixedly connected with a flow dividing pipe; the rotating box is controlled to rotate, so that when one intercepting net is cleaned or replaced, the new catching bin and the new intercepting net can be matched with the waste gas inlet pipe to conduct airflow guiding and intercepting filtering work, cleaning and replacing work can be conducted without shutdown of the device, the effective working time of waste gas purification treatment is effectively prolonged, and the working efficiency is improved. The working efficiency of waste gas treatment and purification is improved.

The invention discloses a pavement patching device for road maintenance, and relates to the technical field of road maintenance, the pavement patching device comprises a base, the top of the base is provided with a rotary heating mechanism for preventing asphalt from being solidified, and the top of the base is also provided with a stirring mechanism for uniformly heating the asphalt; a heat preservation mechanism for slowing down asphalt solidification is further arranged outside the rotary heating mechanism, a sealing mechanism for reducing hot air overflow is arranged inside the heat preservation mechanism, the rotary heating mechanism comprises a stand column fixedly connected to the top of the base, and a storage barrel for storing asphalt is fixedly connected to the top of the stand column; the rotary heating mechanism is arranged and matched with the surrounding type fire spraying opening to dynamically and evenly heat the barrel wall, the problem that asphalt close to the barrel wall area is cooled and agglomerated due to continuous heat dissipation in a traditional static heating mode is solved, it is guaranteed that the asphalt is always kept in the temperature interval suitable for construction in the whole operation process, and the construction efficiency is improved. And the fluidity and the fitting capability with a crack interface are obviously improved.