75results about How to "No seepage" patented technology

The present invention relates to one kind of degradable disposable medical nursing material and its production process. The degradable disposable medical nursing material consists of dry fiber 100 weight portions, water repellent 5-9.3 weight portions and antiseptic 0.01-10 weight portions. Its production process includes the steps of: pulping fiber to obtain 1-6 wt% concentration slurry, adding other components, forming to obtain product with water content of 55-80 %, drying to water content of 10-16 %, hot pressing to shape, trimming and packing.

The invention discloses a stabilizing method for municipal solid waste incineration fly ash with microwave applied. The stabilized products can be obtained by adding fly ash to be processed, a certain concentration of additive agent and water into a polytetrafluoroethylene container directly and then performing heating by the microwave to solidify heavy metal in the fly ash. After disposed by the method, the leaching concentration of the heavy metal in the fly ash can be far below the limiting value of national standard 16889-2008. By means of the stabilizing method, hazardous wastes such as the municipal solid waste incineration fly ash can be processed efficiently and rapidly to meet the requirements of secure landfill and post resource utilization. The method is simple in technology, convenient to operate, high in heavy metal solidified rate, capable of making up for deficiencies that the conventional hydrothermal disposition is high in energy consumption, long in computing time and the like, and high in practical application potential of large-scale disposition of the municipal solid waste incineration fly ash.

The invention relates to an air electrode and a manufacturing method thereof. The air electrode comprises a current collector; a ventilating protection layer is arranged at the lower end of the current collector; and a hydrophobic layer, a reaction layer and a catalysis layer are arranged at the upper end of the current collector from the bottom up in sequence. According to the air electrode disclosed in the invention, the formed A surface is high in hydrophily and weak in hydrophobicity, and a liquid can permeate into the air electrode through the hole channels in the medium to form B surfacepermeation in a fingering manner; along with prolonging of the permeation distance, the medium hydrophobicity is gradually improved, and the holes are smaller and smaller; as a result, the permeationflow resistance is improved, and liquid permeation speed is lower and lower, and finally, the liquid stops permeation in a certain position in the middle of the A and B surfaces to form a stable air,liquid and solid three-phase interface; and by virtue of the interface, a large number of occasions can be provided for the positive electrode reaction, submerging of the electrode by the liquid canbe prevented, and finally, the air electrode can satisfy the standards of high performance and long service life.

The invention discloses a manufacturing method for a PCB for a charging pile. The manufacturing method comprises the following steps: S1, earlier-stage processing is carried out; S2, copper depositionis carried out; S3, blue glue pasting is carried out: a gold-plated area and a non-gold-plated area are preset on the PCB, a to-be-gold-plated bonding pad to be gold-plated is arranged on the presetgold-plated area, blue glue is pasted on the non-gold-plated area, and a copper layer is exposed in the gold-plated area; S4, first micro-etching and blue glue tearing off are carried out: the copperlayer in the gold-plated area is subjected to micro-etching, and the blue glue in the non-gold-plated area is torn off: S5, ink printing is carried out: the preset gold-plated area is covered by the ink and is then baked, and after exposure and development, the bonding pad to be gold-plated is exposed; S6, a dried film is selected and gold plating is carried out: the two sides of the PCB are covered with the dried film, the bonding pad to be gold-plated is exposed and developed, and gold plating is carried out after nickel plating is carried out on the bonding pad to be gold-plated; S7, film stripping and ink stripping are carried out; S8, second micro-etching is carried out; and S9, post-processing is carried out. According to the method, the conditions of gold infiltration and circuit infiltration and corrosion are avoided, the product quality is ensured, the production efficiency is improved, and the prepared PCB can bear large current.

The invention provides a wear-resistance and heat-resistance functional ceramic pot. The wear-resistance and heat-resistance functional ceramic pot comprises a blank and an enamel layer applied to theblank; the blank is prepared from, by weight, 35-50 parts of kaolin, 35-50 parts of waste ceramic, 25-35 parts of zircon powder, 10-15 parts of sepiolite powder, 20-30 parts of activated aluminum oxide and 8-12 parts of silica gel powder; the enamel layer is prepared from, by weight, 10-20 parts of kaolin, 10-15 parts of mica powder, 6-12 parts of silicon dioxide, 10-15 parts of silica gel powder, 5-10 parts of zircon powder, 8-14 parts of bone meal, 8-12 parts of carbon fiber powder and 3-15 parts of pigment. The ceramic pot is smooth and bright in appearance, quick in heat conduction, goodin thermal insulation, resistant to wear and corrosion, and free of toxicity or pollution.

The invention discloses a convenient-to-clean sputum suction device for a pneumology department, and relates to the technical field of sputum suction devices for the pneumology department, and aims tofully clean sputum adhered to a sputum suction collection box. The sputum suction device specifically comprises a box body, two cover plates are connected to the outer wall of one side of the box body through hinges, the sputum aspiration collection box is arranged on the outer wall of the top of the box body, a graduated scale is arranged on the inner wall of one side of the sputum aspiration collection box, three connectors are fixed to the outer wall of one side of the sputum aspiration collection box through bolts, a liquid outlet pipe is fixed to the outer wall of one side of the sputumsuction collection box through screws, a sealing cover plate is slidably connected to the outer wall of the top of the sputum suction collection box, a water disc is welded to the outer wall of the bottom of the sealing cover plate, and two or more flushing heads are fixed to the outer wall of the bottom of the water disc through bolts. Water in the water tank can be pressurized through a pressurepump, meanwhile, an insertion hole is formed in the outer wall of the top of the sealing cover plate, and the water in the water tank can be rapidly guided into the water disc through a flushing pipe.

The invention discloses a water tank and a cleaning robot. The water tank comprises a water tank body and cleaning cloth, wherein water seepage cloth and fixed parts thereof are not arranged in the water tank body; water seepage holes in arc distribution are formed in the bottom of the water tank body; any water seepage cloth does not cover the upper surfaces of the water seepage holes; the cleaning cloth crimps with the bottom surfaces of the water seepage holes; air holes communicated with the water seepage holes are formed in the cover surface of the water tank body; and the communicating space of the air holes and the water seepage holes is isolated by cleaning water inside the water tank body. Compared with the prior art, the water tank in the technical scheme has the advantages thatthe water outlet structure of the water tank is simplified, the working efficiency of the water tank body is improved, and the water seepage holes are avoided from being blocked by the water seepage cloth.

A method for manufacturing metal powder comprising: providing a basic metal salt solution; contacting the basic metal salt solution with a reducing agent to precipitate metal powder therefrom; and recovering precipitated metal powder from the solvent.

The invention discloses a water storage automatic permeation flower moistening double-layer hollow flower pot. The bottom of a multi-cotton-sliver water absorption assembly device (7) is inserted in a water adding and cotton sliver outlet (2), and the upper portion of the multi-cotton-sliver water absorption assembly device (7) is placed on soil on the surface of an inner flower pot. The water adding and cotton sliver outlet (2) is sleeved with a mosquito prevention net 3, and the double-layer flower pot (1) is filled with water. By the utilization of the capillary siphon effect of bar type fibers, water is gradually sucked and permeates into the flower pot for flower moistening (watering). The number of cotton slivers which are placed in the inner flower pot is increased or decreased to control and adjust the soil humidity. By the utilization of the flower pot, water and fertilizers can be saved, environment-friendly flower watering is achieved, and labor time and labor amount of users are reduced.

The invention discloses a method for determining the control index of a double-layer continuous reinforced concrete pavement reinforcement ratio. The method is characterized in that the method comprises the following steps of step one, initializing the reinforcement ratio of the upper and lower layers of steel bars and the positions of the reinforcement; step two, according to the calculation formula of a transverse crack width variation value delta bj under different reinforcement positions, calculating the transverse crack width variation value delta bj under different reinforcement positions; step three, according to the calculation formula of the transverse crack width variation value delta b'j under different reinforcement ratios, calculating the transverse crack width variation valuedelta b'j under the different reinforcement ratios; step four, according to the delta bj and delta b'j values, determining a double-layer CRCP transverse crack width control value bj, wherein the double-layer CRCP transverse crack width control value bj is the double-layer CRCP reinforcement ratio control index. According to the method, the reinforcement ratio control index can be used for the reinforcement ratio design, which has important significance for scientifically and rationally designing the double-layer CRCP reinforcement ratio, the reinforcement ratio is an important index for determining the performance and economy of the double-layer CRCP, and the method has significant social and economic benefits.

The invention relates to the technical field of intelligent processing equipment, and especially relates to a plastic package stator rust-proof treatment device and a using method thereof. The plasticpackage stator rust-proof treatment device comprises a shell, a conveying mechanism, a tray, a dust blowing seepage prevention mechanism and a coating mechanism and is characterized in that the shellis a rectangular hollow box body; the conveying mechanism is arranged in a lower area in the shell and is composed of a synchronous belt mechanism driven by a servo motor, and the tray is arranged onthe synchronous belt mechanism; the tray is a rectangular flat plate, and a plurality of countersunk head through holes are uniformly distributed in the rectangular flat plate to serve as plastic package stator placement grooves; the dust blowing seepage prevention mechanism is arranged below the conveying mechanism; and the coating mechanism is located above the conveying mechanism and right faces the dust blowing seepage prevention mechanism. The device and the method have the beneficial effects that rust-proof treatment can be performed under a condition that an inner cavity of the plasticpackage stator is kept clean all the time, and meanwhile a rust-proof liquid can be prevented from permeating into a bearing chamber of an end cover.

The invention provides a preparation method of a light weight panel. The preparation method of the light weight panel comprises the following steps of mixing the following raw materials in parts by weight: 10 to 20 parts of waste stone materials, 50 to 70 parts of microsphere particles, 10 to 20 parts of cement, and 6 to 8 parts of thermosetting phenolic resin powder so as to obtain a raw materialmixture; paving the raw material mixture, pre-pressing, hot-pressing, curing molding, cooling, and opening a mould to obtain a light weight panel blank body. The panel prepared by adopting the preparation method provided by the invention is dense and uniform in material, rich in color, uniform in color, higher strength and hardness, better in secondary processability without containing water, extra low in water absorption, and free of shrinkage and buckling deformation in a high-temperature high-humidity environment.

The present invention is a treatment agent for a moisture-permeable fabric having excellent moisture permeability, water resistance and launderability. The treatment agent comprises a fluorine-containing polymer having repeating units derived from: (a) a fluorine-containing monomer represented by the formula, CH2=C(-X)-C(=O)-Y-Z-Rf [wherein, X is a monovalent organic group excluding methyl groups, or a halogen atom, Y is -O- or -NH-, Z is a directly-bonded or divalent organic group, and Rf is a fluoroalkyl group with 1 to 6 carbons]; (b) a halogenated olefin monomer; and (c) a fluorine-free monomer that is used as necessary, does not have a fluorine atom, and has at least one carbon-carbon double bond. The dynamic viscoelasticity of the fluorine-containing polymer at 160°C is at least 100 Pa.s.

The invention relates to quick-frozen oil. The quick-frozen oil is prepared from soybean oil, peanut oil, glyceryl monostearate, sucrose fatty acid ester and water through the processes of rapid cooling and kneading; the quick-frozen oil is fine, smooth and lubricating in tissue state, and does not have the phenomena of layering and water seepage substantially. The quick-frozen smallanthus sonchifolius filling using the quick-frozen oil is prepared from smallanthus sonchifolius, the quick-frozen oil, white granulated sugar, water, citric acid, agar and pectin. The quick-frozen smallanthus sonchifolius filling is light yellow in color and presents a plastic solid state at a normal atmospheric temperature, and fruit granules are uniform in distribution and are clear in sight, so that the quick-frozen smallanthus sonchifolius filling is convenient to form, wrap and process; after being heated, the quick-frozen smallanthus sonchifolius filling presents a viscous flow state, is clean, sweet and sourish in mouth feel and good in palatability, has delicate fragrance, and is free from peculiar smell.

The invention discloses a water valve joint of an automobile air conditioner radiator. The water valve joint comprises a pipe body, a water tank joint and a tightening button; one end of the pipe body is fixedly connected with a water valve connection pipe; the other end of the pipe body is fixedly connected with a joint inner pipe; two pipe body grooves are formed in the periphery of the joint inner pipe; a small rubber ring is connected in each pipe body groove in a sleeving manner; the pipe body, at one end of the joint inner pipe, is fixedly connected with a water tank connection; two joint grooves are formed in the inner side of the water tank connection, close to the end point; a large rubber ring is adhered in each joint groove; one end of the water tank joint is fixedly connected with three steel strips; and one end of each steel strip is fixedly connected with the tightening button. According to the water valve joint, one end of the pipe body is fixedly connected with the joint inner pipe and the water tank connection, and the outer side of the joint inner pipe and the inner side of the water tank connection are connected with the small rubber rings and the large rubber rings in the sleeving manner respectively, so that water cannot leak due to strong sealing performance when passing through the part, mounting and disassembly are also convenient, scales cannot be retained when the water valve joint is disassembled for cleaning during maintenance, and a great amount of expenses are saved for an automobile owner.

The invention relates to a novel mortar additive and a preparation method thereof. The additive is prepared from the following raw materials (by weight): 0.2 to 0.8 part of a penetrating agent, 3 to 7parts of a dispersing agent, 3 to 7 parts of cellulose, 3 to 6 parts of a powdery defoaming agent and 0.2 to 0.8 part of a viscosity regulator. The preparation method is simple, low in cost and suitable for being popularized and used in large-area terrace projects such as supermarkets and shopping malls.