298results about How to "Reduce rate" patented technology

The invention discloses a high-strength cold-resistant fiber and a preparation method thereof, and relates to the field of fibers. When the high-strength cold-resistant fiber is prepared, diphenylphosphine sequentially reacts with triallylmethoxysilane and nickel bromide, and a silicon-phosphorus-nickel complex is prepared; the preparation method comprises the following steps: reacting an alkene mixed solution, azodiisobutyronitrile, a hydrochloric acid solution and a silicon mixed solution, diluting with 4-methyl cyclohexanone, and reacting with zinc bromide to prepare a pre-modified polyacrylate emulsion; the preparation method comprises the following steps: carrying out a batch reaction on graphene oxide and 1-aminopyrrole to prepare modified graphene oxide; the modified graphene oxide, 2, 5-dihydroxy terephthalaldehyde and the pre-modified polyacrylate emulsion react and then electrostatic spinning is conducted, and the high-strength cold-resistant fiber is prepared. The high-strength cold-resistant fiber prepared by the invention has antibacterial, anti-aging, flame-retardant and antistatic capabilities.

The invention relates to the technical field of wire and cable manufacturing, in particular to a high-flexibility low-smoke fire-fighting power cable and a preparation method thereof. The cable sequentially comprises a cable core, a shielding layer and an outer sheath layer from inside to outside, the outer sheath layer is prepared from the following preparation raw materials: 60 to 65 parts of methyl vinyl silicone rubber, 12 to 15 parts of ethylene propylene diene monomer, 8 to 10 parts of linear low-density polyethylene, 5 to 6 parts of cross-linking agent, 20 to 22 parts of flame retardant, 6 to 8 parts of reinforced flame-retardant filler, 20 to 25 parts of modified heat-conducting filler, 1.2 to 1.5 parts of coupling agent, 1.3 to 1.5 parts of antioxidant, 3 to 3.5 parts of lubricant, 2 to 2.5 parts of vulcanizing agent and 0.6 to 0.8 part of accelerant. The outer sheath layer of the high-flexibility low-smoke fire-fighting power cable prepared by the invention has excellent mechanical strength, toughness, heat-conducting property, high temperature resistance and flame retardant property, so that the high-flexibility low-smoke fire-fighting power cable has higher reliability and safety in fire-fighting power supply occasions.

The invention relates to the technical field of alloy processing, in particular to a long-service-life elastic titanium-copper alloy for a VCM elastic piece and a preparation method thereof.The preparation method comprises the following steps that firstly, raw materials including 55%-65% of titanium, 30%-25% of copper, 10%-8% of aluminum, 3%-1% of zinc and 2%-1% of magnesium are weighed according to the mass percent; 2, the raw materials are put into a vacuum furnace to be melted, and a liquid melt is obtained; thirdly, the melt is poured into a casting mold for casting, and a blank is obtained; according to the method, the change of the state of the blank can be responded in real time by calculating the influence of the rolling times and the thickness change of the blank on the rolling control parameters, so that the rolling process can be flexibly adjusted according to the actual situation, the adaptability during machining is improved, and the rolling speed is improved when the rolling times are gradually reduced along with the reduction of the rolling times of the blank. The rolling temperature, ratio, speed and pressure are reduced, excessive deformation and damage of blanks can be effectively prevented, and the quality of final products, namely the elastic life of the alloy, is improved.

The invention aims to provide a heat treatment method for reducing quenching stress and improving low-temperature toughness of a Cr-Ni-Mo-V steel forging, and belongs to the technical field of metal material heat treatment. The method comprises the following steps: (1) carrying out isothermal annealing heat treatment on the Cr-Ni-Mo-V steel forging; (2) carrying out normalizing heat treatment on the isothermal annealing forge piece; (3) carrying out tempering heat treatment on the normalized forge piece; (4) the tempered forge piece is subjected to step quenching treatment; and (5) carrying out rapid tempering treatment on the quenched forge piece. By means of the heat treatment method, the surface quenching residual stress of the Cr-Ni-Mo-V steel forge piece can be reduced by 30% or above, meanwhile, the strength and low-temperature impact energy of the Cr-Ni-Mo-V steel forge piece are improved by 10% or above, and the safety and reliability of the Cr-Ni-Mo-V steel forge piece are improved.

The invention discloses a preparation method and application of a microencapsulation modified efficient intumescent flame-retardant system.The preparation method specifically comprises the following steps that ammonium polyphosphate and an emulsifier are added into a silicon dioxide capsule material solution, an in-situ polymerization reaction is conducted, and the microencapsulation efficient flame-retardant system with ammonium polyphosphate as a core material and silicon dioxide as a capsule material is obtained; the microencapsulated ammonium polyphosphate is obtained; melamine cyanurate, calcium gluconate and prepared microencapsulated ammonium polyphosphate are compounded to form an intumescent flame retardant system; the application method comprises the following steps: adding the microencapsulated ammonium polyphosphate, the melamine cyanurate and the calcium gluconate according to a certain proportion, dissolving in the epoxy resin a glue, and uniformly stirring and dispersing. And adding epoxy resin b glue according to the mass ratio of a: b of 3: 1 to obtain the flame-retardant EP composite material. Ammonium polyphosphate is subjected to microcapsule wrapping modification, silicon dioxide is adopted as a capsule wall material, ammonium polyphosphate can be effectively wrapped, the compatibility of a base material is improved, and the flame retardant effect of the base material is further improved.

The invention relates to the technical field of soil fertilization, in particular to a wheat biological membrane compound fertilizer and a fertilization device thereof.The wheat biological membrane compound fertilizer comprises a fertilization rack and a composting bin, a traction assembly combined with an agricultural locomotive is fixedly arranged on the fertilization rack, walking wheels are installed at the two ends of the fertilization rack, and the composting bin is fixedly installed above the fertilization rack; a plurality of groups of fertilizer distributing pipes are movably mounted at the middle lower part of the fertilizer applying rack, and the fertilizer distributing pipes are positioned below the composting bin. The problems that according to an existing fertilization device, the combination mode between fertilizer and soil after fertilization is difficult to change according to soil properties, the fertilization distance between the fertilizer and wheat seedlings is difficult to control, and the probability of seedling burning or rapid nutrient loss is increased are solved.

The invention discloses a battery full charge judgment method and device, electronic equipment and a storage medium, and belongs to the technical field of external energy supply of an energy storage system.The method comprises the steps that the real-time temperature of a battery in the charging process is obtained; if the real-time temperature is larger than or equal to the first temperature threshold value, the full charge current of the battery is adjusted from the initial current to the first current, full charge judgment is carried out on the battery based on the first current, and the first current is larger than the initial current; and if the real-time temperature is less than the first temperature threshold, performing full charge judgment on the battery based on the initial current. According to the invention, the full charge judgment method of the battery can be improved, so that the overall charge capacity of the battery is reduced in a high-temperature scene, and the battery is prevented from being charged too much.

The invention discloses a preparation process of a poly laminated double-passivation structure of a TOPCon battery and the TOPCon battery, and belongs to the technical field of solar cells, the preparation process of the poly laminated double-passivation structure of the TOPCon battery comprises the following steps: S1, a pretreatment process; s2, preparation of a laminated double-passivation structure: feeding the silicon wafer subjected to the pretreatment process into a furnace tube of a PECVD (Plasma Enhanced Chemical Vapor Deposition) machine, preparing a tunneling oxide layer on the back of the silicon wafer, and preparing the laminated double-passivation structure on the tunneling oxide layer, the laminated double-passivation structure sequentially comprising a buffer layer, a barrier layer and an N-type amorphous silicon layer; the buffer layer is an intrinsic amorphous silicon layer, and the barrier layer is a tunneling oxidation barrier layer. According to the poly laminated double-passivation structure, the controllability of phosphorus doping distribution can be improved, the doping uniformity is further improved, the contact performance can be improved through high phosphorus doping concentration, meanwhile, the N / N high-low junction phenomenon caused by too high phosphorus doping concentration is avoided, the passivation contact performance of a battery piece is improved, and high battery conversion efficiency is obtained.

The invention discloses a double-sideband resonance optical fiber amplifier and an in-band ASE suppression method. The optical fiber amplifier comprises a narrow-linewidth seed light source, a narrow-linewidth laser pre-amplification system, a main amplification system, a seventh single-mode optical fiber, a mode field adapter, a first large-mode-field optical fiber, a laser collimating lens and a transmission type diffraction grating. Final pre-amplified signal light output in the narrow linewidth laser pre-amplification system passes through an FBG of a first LWS resonant cavity, an FBG of a second LWS resonant cavity, an FBG of a first SWS resonant cavity and an FBG of a second SWS resonant cavity in the main amplification system, long-wave sideband laser and short-wave sideband laser are obtained respectively, a gain optical fiber of the main amplifier absorbs pump light, and the pump light is transmitted to the main amplification system. The pump light and the sideband laser are processed by the laser output end cap to obtain divergent laser beams; amplified signal laser is obtained through processing of the laser collimating lens and the transmission-type diffraction grating. According to the invention, the influence on signal laser gain is reduced to the greatest extent, and the method can be applied to a main amplification stage with higher power.

The invention relates to a gradient heterogeneous structure for improving the high-temperature oxidation resistance of an alloy, a preparation method of the gradient heterogeneous structure and the alloy. The gradient heterogeneous structure comprises an alloy structure extending from the surface of the alloy to the interior. In the gradient heterogeneous structure, the grain size is in gradient distribution inwards from the surface of the alloy; in the gradient heterogeneous structure, crystal grains in the same depth range are distributed in multiple sizes, namely, the crystal grains are heterogeneous; annealing twin boundaries exist in the crystal grains; and a precipitated phase exists in the crystal grains or along the crystal boundary. The gradient heterogeneous structures provided by the invention are in gradient distribution in the depth direction macroscopically, grain heterogeneous structures with large grain size difference are locally formed in the same depth range, annealing twin boundaries and precipitated phases are formed in grains, and the high-temperature oxidation resistance of the alloy can be improved while the high-temperature strength of the alloy can be improved.

According to the navigation and communication signal integration method provided by the invention, aiming at a conduction integration signal system application scene, the positioning precision and the anti-multipath capability are selected as evaluation indexes, and the navigation and communication integration signal precision and performance are analyzed and evaluated based on the performance theoretical limit. By combining the characteristics of a communication signal and a navigation signal, taking compatibility of the communication signal and the navigation signal as a starting point and adopting a burst multicarrier modulation mode, a navigation signal, namely a burst multicarrier signal (BCC signal) which can be broadcasted in a time slot of a communication channel and is compatible with multiple communication systems is constructed. Mi subcarriers are modulated on a single frequency point of a signal source i, the frequency interval between the subcarriers is fixed, the signal duration is adjustable, the subcarriers have burst characteristics, each subcarrier is modulated with the same pseudo code, meanwhile, the signal power of each subcarrier can be adjusted according to needs, and finally, the signals of the Mi subcarriers are combined together and transmitted out. Different pseudo codes are used for representing different signal sources.

The invention discloses a frequency modulation capability-considered DC frequency coordination control method, system and device, and the method comprises the steps: calculating the frequency modulation capability coefficient of each DC power transmission system participating in the frequency modulation of a sending-end AC system based on the operation state of each DC power transmission system and the equivalent parameter of a DC receiving-end AC system; based on the frequency modulation capability coefficient and the frequency of the sending end AC system, calculating the frequency modulation auxiliary power of each DC power transmission system of which the sending end is commonly connected to the same sending end AC system; adding the frequency modulation auxiliary power and each initial power to obtain alternative power of each direct current power transmission system; and determining the actual power of each direct-current power transmission system according to the comparison result of the alternative power of each direct-current power transmission system and the minimum operation power limit value and the maximum operation power limit value of each direct-current power transmission system. According to the technical scheme, the problems that the frequency modulation capability of multiple direct-current power transmission systems is not fully played and a certain direct-current receiving end alternating-current system excessively participates in frequency modulation in the prior art can be solved.

The invention discloses a soft capsule coating agent which comprises the following components in percentage by mass: 40-60% of pectin, 15-30% of a humectant, 10-20% of medium chain triglyceride, 10-20% of carnauba wax, 5-10% of hydroxypropyl methyl cellulose and 0.1-10% of glycerol, wherein the humectant is prepared from at least one of sorbitol, xylitol and isomaltitol. The invention also discloses a preparation method of the soft capsule coating agent and a soft capsule containing the soft capsule coating agent. According to the soft capsule coating agent disclosed by the invention, the problems of high-temperature and high-humidity deformation and caking of soft capsules and aging of capsule skins after long-time storage can be improved, and meanwhile, the soft capsule coating agent is good in barrier property and better in protection of soft capsule products.

The invention discloses a bacon drying device. The preserved meat drying device comprises a drying box body, a thermal circulation unit, a control unit, a rotating unit, a first motor, a flow guide unit, a drying unit, a temperature sensor and a humidity sensor, wherein a box door and the thermal circulation unit are arranged on the side wall of the drying box body; the control unit is arranged above the box door; the rotating unit is arranged in the drying box body; the first motor is in transmission connection with the rotating unit; the flow guide unit is arranged in the drying box body; the drying unit and the humidity sensor are arranged at the air inlet end of the heat circulation unit; the temperature sensor is arranged in the drying box body; the thermal circulation unit, the rotating unit, the first motor, the temperature sensor and the humidity sensor are electrically connected with the control unit. According to the bacon drying device provided by the invention, hot air can be uniformly distributed in the drying box body as far as possible, and meanwhile, through rotation and autorotation of bacon, the air drying speed of the bacon is increased, and the drying uniformity is ensured, so that the drying efficiency is improved.

The invention discloses an Al-Cu-Mg-Fe-Ni aluminum alloy bar as well as a preparation method and application of the Al-Cu-Mg-Fe-Ni aluminum alloy bar. The aluminum alloy bar comprises the following components in percentage by weight: less than or equal to 0.02% of Si, 0.7%-0.9% of Fe, 1.8%-2.1% of Cu, 1.3%-1.4% of Mg, 0.02%-0.08% of Ti, 0.7%-0.9% of Ni, more than or equal to 0.1% and less than or equal to 0.2% of Mn + Cr + Zr, and the balance of Al and inevitable impurities. The single impurity is less than or equal to 0.05%, the total impurity is less than or equal to 0.1% and the balance is Al, and the total percentage is 100%. When the aluminum alloy bar is extruded, the heating temperature of the head of the aluminum alloy ingot is higher than that of the tail; the front-section extrusion speed of the ingot is higher than the rear-section extrusion speed. Metal grains in the aluminum alloy bar are fine and uniform, the use requirements of the grains are met, the tensile strength of the bar is larger than or equal to 355MPa, and the ductility is larger than or equal to 8.0%.

The invention relates to the technical field of solar cells, particularly provides a preparation method of a solar cell, and aims to solve the problem that a polycrystalline silicon layer is difficult to thin in an existing preparation method of the solar cell. In order to achieve the purpose, the preparation method of the solar cell comprises the steps that a tunneling oxide layer, a polycrystalline silicon layer and a second anti-reflection layer are sequentially formed on the second side of a substrate; forming a groove, wherein the groove extends into the second anti-reflection layer or the polycrystalline silicon layer from the surface of the second anti-reflection layer; printing metal slurry in the groove; and heating and sintering the metal slurry to enable the metal slurry and the polycrystalline silicon layer to form ohmic contact. In the heating and sintering process, the thickness of the second anti-reflection layer corroded by the metal slurry is small, the sintering temperature can be reduced on the premise that good ohmic contact is formed between the metal slurry and the polycrystalline silicon layer, the rate of corroding the polycrystalline silicon layer by the metal slurry is reduced, the depth of corroding the polycrystalline silicon layer by the metal slurry can be controlled, and the service life of the polycrystalline silicon layer is prolonged. Therefore, the polycrystalline silicon layer is thinned to reduce parasitic absorption.

The invention provides a semiconductor process method. The semiconductor process method comprises the following steps: sequentially forming a hard mask layer and a patterned photoresist layer on a layer to be etched; taking the patterned photoresist layer as a mask, and etching the hard mask layer by adopting a dry etching process to form a groove for exposing the layer to be etched; wherein in the dry etching, a silicon coating is arranged in a reaction chamber, direct current voltage is applied to the silicon coating, the silicon coating is reverse voltage, and the silicon coating is bombarded by plasma to release silicon which is attached to the upper surface of the patterned photoresist layer to form a protective layer so as to protect the patterned photoresist layer. Through the arrangement of the direct-current silicon coating, the protective layer is formed on the patterned photoresist layer to protect the patterned photoresist layer, the patterned photoresist layer is prevented from being damaged in dry etching, and meanwhile, the patterned photoresist layer is modified and hardened, so that the consumption of high-energy bombardment on the vertex angle of the patterned photoresist layer can be resisted, and the service life of the patterned photoresist layer is prolonged. And generation of stripes on the side wall of the groove is avoided.

The invention discloses mass concrete with low hydration peak temperature and a preparation method thereof, and belongs to the technical field of building materials. The mass concrete is prepared from the following raw materials in parts by weight: 150 to 200 parts of cement, 80 to 130 parts of fly ash, 30 to 70 parts of slag powder, 500 to 700 parts of gravel, 200 to 350 parts of boron nitride ceramsite aggregate, 800 to 1000 parts of sand, 150 to 200 parts of water and 5 to 10 parts of additive, wherein the boron nitride ceramsite aggregate is prepared from fly ash, municipal sludge, sludge and boron nitride as raw materials through aging, granulation and sintering. The boron nitride ceramsite aggregate is used for replacing part of natural aggregate to prepare the mass concrete, the hydration peak temperature of the mass concrete can be effectively reduced, the hydration heat release behavior of the mass concrete is delayed, the formation rate of temperature cracks in the mass concrete is reduced, and the mass concrete has a good application prospect. The problems that the hydration temperature rise of mass concrete is fast in the solidification forming process and natural aggregate resources are increasingly in shortage are solved.

The invention discloses a B2-grade flame-retardant PVC (polyvinyl chloride) cable material and a preparation method thereof, and a high-wear-resistance and high-flame-retardant PVC material and a preparation method thereof. The PVC cable material is prepared from the following raw materials in parts by weight: 20-40 parts of polyvinyl chloride resin A, 40-60 parts of polyvinyl chloride resin B, 20-50 parts of a plasticizer A, 15-35 parts of a plasticizer B, 10-25 parts of calcium carbonate, 30-60 parts of a flame retardant A, 15-25 parts of a flame retardant B, 7-10 parts of a stabilizer, 5-10 parts of a carbon forming modifier A, 3-6 parts of a carbon forming modifier B, 2-8 parts of a flexibilizer and 0.5-1 part of a lubricant. According to the B2-grade flame-retardant PVC cable material, on the basis of meeting all requirements of ST2 sheath materials in GB / T12706-2008, a ZB2-YJV223 * 1208.7 / 15kV cable made of the B2-grade flame-retardant PVC cable material can meet the B2-grade combustion requirement in GB31247-2014, and the B2-grade flame-retardant PVC cable material is suitable for cables with the B2-grade flame-retardant requirement and has the advantages of being low in cost, high in cost performance, convenient to produce and extrude, high in production efficiency and the like.

The utility model discloses a novel ladder cage which comprises a ladder cage frame body, the ladder cage frame body comprises a plurality of layers of pedal platforms which are longitudinally arranged at equal intervals, the pedal platforms are arranged in a rectangular shape, and the longitudinally adjacent pedal platforms are connected through stand column bolts arranged at the four end corner positions of the pedal platforms; the pedal platform comprises two symmetrically-arranged first cross beam pieces and two symmetrically-arranged second cross beam pieces, the two first cross beam pieces and the two second cross beam pieces are connected through bolts to form a rectangular frame structure, and a pedal piece is arranged between the two first cross beam pieces; in the longitudinally adjacent pedal platforms, the pedal pieces are arranged in a staggered mode, and stair pieces are connected between the pedal pieces arranged in the staggered mode through bolts. According to the utility model, the assembling operation of the pedal platform and the elevator cage frame body can be realized without hoisting equipment, and the assembling cost and the assembling speed of the elevator cage frame body are effectively reduced.

An antibody that can specifically bind to semenogelin-1 (SEMG1) and semenogelin-2 (SEMG2) and regulate the binding of said proteins with a receptor (LILRB2, LILRB4, CD27, or TIGIT) thereof. It is proven that SEMG1 and SEMG2 have a regulating effect on immune cells, and it is proven that the antibody has a neutralizing effect. A specific linear epitope located on SEMG1 and SEMG2 proteins is provided, and it is proven that an antibody recognizing said epitope has a stronger neutralizing function, can more effectively remove an immunosuppressive effect mediated by SEMG1 and SEMG2, and promotes immune cells to inhibit and kill tumor cells. Further provided are preparation and identification methods for the antibody as well as a biomarker for the administration of such antibody. The present invention has good application prospects in the aspect of preparation of an anti-tumor drug.

Disclosed are a hybrid dialkylphosphinic acid salt, and a preparation method therefor and an application thereof. The hybrid dialkylphosphinic acid salt is at least one of compounds represented by Formula (I). The hybrid dialkylphosphinic acid salt of Formula (I) provided herein features a low required loading level, high flame retardant efficiency for various polymers, and high economic efficiency. The present invention overcomes the disadvantage of low flame retardant efficiency of diethylphosphinate in polymers as well as high volatility and low flame retardant efficiency for polyesters of diisobutylphosphinate. The hybrid dialkylphosphinate salt of Formula (I) can be widely applied to flame retardant polymers which require high-temperature processing.

The sorting equipment comprises a main conveying structure and a scanning control system used for collecting express item information, and a plurality of branch conveying structures arranged front and back are installed on one side of the main conveying structure; the main conveying structure is provided with a plurality of discharging structures used for pushing the express items after information scanning to the branch conveying structures, the front side of the scanning control system is provided with a cleaning mechanism used for cleaning bar code areas on the surfaces of the express items, and the cleaning mechanism comprises a lifting frame installed on the main conveying structure. The lifting frame is provided with a sensor used for detecting the height of the passing express delivery, and the lifting frame is detachably provided with a main conveying structure used for conveying the express delivery along with the main conveying structure from front to back. According to the invention, the effect of pushing the express parcels from front to back can be ensured while the express parcels are effectively cleaned in the top surface bar code area, and in addition, the impact force generated when the express parcels are transferred from the main conveying structure to the branch conveying structures and the gliding speed are effectively reduced.

The present invention belongs to the technical field of clothing manufacturing equipment, and in particular to a dust removal device for textile machinery and a method of using the same, comprising a clothing manufacturing machine, a top plate fixed on the upper surface of the clothing manufacturing machine, and a dust cover screwed to the surface of the top plate, the surface of the top plate being screwed to a dust removal fan, and the interior of the dust cover being provided with a dust removal mechanism. The device is provided with a dust removal mechanism, and can intercept and filter the generated cotton wool and fine fibers as well as dust in the air, thereby greatly improving the working environment and reducing the dust content in the air. The device can automatically clean the surface of the dust filter element to ensure the filtering effect of the dust filter element, and avoid dust backflowing back into the work workshop to cause pollution to the working environment, thereby creating a cleaner, healthier and more comfortable working environment for workers, helping to improve the work enthusiasm and work efficiency of workers, and reducing health problems such as respiratory diseases caused by dust.

The invention provides an electric auxiliary turbocharger with a double filtering system, and relates to the technical field of electric auxiliary turbochargers, the electric auxiliary turbocharger comprises a gas compressor, a gas compressor gas inlet and a gas compressor gas outlet are formed in the gas compressor, a conical barrel is further arranged on the gas compressor, a gas inlet is formed in the side wall of the top of the conical barrel, and a gas outlet is formed in the side wall of the top of the conical barrel. The air inlet is tangent to the conical barrel, a connecting barrel is rotationally connected to the center of the top of the conical barrel, a rotating barrel with air permeation holes is arranged in the center of the interior of the conical barrel, rotating barrel blades are arranged on the side wall of the periphery of the rotating barrel, and the top of the rotating barrel is fixedly connected with the bottom of the connecting barrel; the top of the connecting cylinder is rotationally connected with the air inlet end of the air filter, double filtering devices are arranged, namely, a set of filtering devices are additionally arranged in front of the air filter, so that the filtering effect on pollution such as dust in air is improved, and the situation that the air filter is blocked, and the air inlet amount is affected is avoided.

Embodiments include, in response to monitoring the processor during operation, detecting a first amount of throttling amount in the processor, determining that the first amount of throttling amount satisfies a first condition with respect to a throttling amount threshold, and modifying a voltage level of the processor by a first amount. Embodiments include, in response to modifying the voltage level of the processor by the first amount, detecting a second amount of throttling amount in the processor, determining that the second amount of throttling amount satisfies a second condition with respect to a throttling amount threshold, and modifying the voltage level of the processor by the second amount.

The invention provides an environment-friendly bidirectional three-dimensional waterproof moisture-permeable film spreading material and a preparation method thereof. The environment-friendly bidirectional three-dimensional waterproof moisture-permeable film spreading material is prepared from the following raw materials: a modified 107 monomer, a nano composite material, an inorganic filler, a defoaming agent, a cross-linking agent, a coupling agent, an accelerant and a diluent. The environment-friendly two-way three-dimensional waterproof moisture-permeable film spreading material is good in overall film-forming property, a layer of continuous, uniform, complete and integrated rubber-like elastomer is formed, and the material has good ductility and good tensile strength; the formed waterproof layer has protruding waterproof capability, anti-pressure capability and high and low temperature resistance, can achieve the effects of moisture prevention, mildew prevention, moss prevention, heat insulation, heat preservation and rust prevention of a coating, can be mechanically sprayed, can also be brushed in a rolling manner and can be coated in a blade manner, and is convenient to construct.

The present invention comprises: a first tray for forming a portion of an ice-making cell; a second tray forming the other portion of the ice-making cell, and capable of moving relative to the first tray; an ice bin for storing ice separated from the first and second trays; and a full-ice sensing lever for moving together with the second tray in a predetermined range.

A cutting blade wear determination device (31) of a sheet processing device includes a cutting controller (33), a cutting trace extractor (34), and a determiner (35). The cutting controller (33), by causing a lifting mechanism capable of moving a cutting blade in a direction intersecting a sheet placed on a table and a parallel movement mechanism capable of moving the cutting blade in parallel with a surface of the table while the cutting blade is brought into contact with the table to operate, instructs formation of a cutting surface in a sheet placed on the table. The cutting trace extractor (34) acquires an image captured by imaging, by a camera (21), a portion of the back surface of a sheet where formation of a cutting surface is instructed and extracts, from the image, a cutting trace that is a line at which the formed cutting surface intersects the sheet back surface. When an assumed line that is a line at which a cutting surface assumed to be formed in the sheet by the cutting blade intersects the sheet back surface does not coincide with a cutting trace extracted by the cutting trace extractor (34), the determiner (35) determines that the cutting blade instructed to form the cutting surface is worn.