624 results about "Surface dust" patented technology

The invention relates to an aerogel composite material with a surface subjected to dust-free treatment and a preparation method thereof, in particular to a method using an aerogel felt, an aerogel plate, an aerogel cylinder and an aerogel shaped piece as the base material and coating the substrate surface with compact coating so as to avoid shedding of aerogel surface dust. The method is simple and practicable, can effectively solve the problem of easy generation of dust on the aerogel surface, significantly improves the working environment, and can satisfy the use condition of aerogel in clean space. By adopting different ratios, a rigid coating and a flexible coating can be obtained, high temperature and low temperature application can also be achieved, compound proportioning of an inorganic film-forming agent and an organic film-forming agent also can give consideration to flexibility and fire resistance, and significantly improves the adaptability of the coating paste to different types of aerogel materials. The aerogel subjected to dust-free treatment can be applied to heat preservation of various industrial equipment and pipeline, and also can be applied to thermal insulation of high speed rail, vessels, electronics and pharmaceutical workshops and building field.

The nanometer mirror spraying process includes the following steps: 1. eliminating surface dust; 2. spraying primer; 3. sensitizing and activating treatment; 4. spraying solution A comprising silver nitrate solution, ammonia water solution and sodium hydroxide solution and solution B comprising sodium borohydride, potassium borohydride or p-methylaminophenol sulfate solution in the volume ratio of 1 to 1-1.7 to produce reduction; 5. shaping and developing; 6. blowing to dry; and 7. drying. The present invention has the advantages of diversified products, high corrosion resistance, suitability to mass production, high hardness, low cost, etc.

An admixture for minimizing or preventing dust on surfaces of cured cement and concrete structures comprises a shrinkage reducing additive in combination with a fatty alcohol. Cementitious compositions containing the admixture, and methods for reducing dusting on cement structures, are also described.

The invention relates to a fabric surface dust removal device, which belongs to the technical field of fabric dust removal facilities and comprises a machine frame, a box body of a dust removal box, a first hair brush roller, a second hair brush roller, a motive power transmission mechanism, a first dust collection bucket and a second dust collection bucket, wherein a first cloth guide roller and a second cloth guide roller are arranged on the top of the machine frame, the top of the box body of the dust removal box is provided with a dust removal fabric guide-out roller, the bottom of the box body of the dust removal box is provided with a fabric guide-in roller, in addition, a cloth guide groove is formed in the center of the box body of the dust removal box, the first hair brush roller and the second hair brush roller are arranged in a box body cavity of the box body of the dust removal box, the same ends of a first hair brush roller shaft of the first hair brush roller and a second hair brush roller shaft of the second hair brush roller extend to a position outside the box body cavity and are connected with the motive power transmission mechanism, the motive power transmission mechanism is fixed on the box body of the dust removal box, a first dust suction pipe is connected onto the first dust collection bucket, a second dust suction pipe is connected onto the second dust suction bucket, and both the first dust suction pipe and the second dust suction pipe are connected with a negative pressure dust removal mechanism. The fabric surface dust removal device has the advantages that the dust removal effects on both sides of the fabric can be ensured without generating the secondary pollution of dust, and the fabric can smoothly enter the subsequent work procedures in a stable state.

The invention provides an electroplating or chemical-plating pretreatment method of aluminum alloy and a copper plating method of aluminum alloy. The pretreatment method which comprises the steps of chemical sand treatment, surface dust removal, primary zinc immersion, secondary zinc immersion and nickel preplating is adopted, a proper solution formula and proper technological parameters are selected, the binding force of a plating layer obtained later is increased, and it is ensured that the plating layer of copper or other metal is qualified after 280 DEG C welding. The pretreatment method is stable and suitable for cyaniding copper plating treatment of aluminum alloy materials and other kinds of electroplating and chemical-plating pretreatment of the aluminum alloy materials. A thermal shock experiment result shows that aluminum alloy parts can bear high temperature of 280 DEG C for 3 min without bubbling or peeling or falling off after being plated with copper through the method, and the pretreatment method can be applied to electroplating and chemical-plating processes of a large number of parts.

The invention relates to a conveniently mountable and demountable fingerprint lock with an automatic cleaning function. The fingerprint lock comprises a body which is provided with a handle and a fingerprint acquisition device, and the fingerprint acquisition device comprises a pressing mechanism, a connection mechanism and an acquisition mechanism. The acquisition mechanism comprises a recess anda cleaning component, and the cleaning component comprises a cleaning panel, a hinge unit, a cleaning unit, two connection units and two fixing units. The conveniently mountable and demountable fingerprint lock with the automatic cleaning function has advantages that the pressure mechanism drives a fingerprint window in the acquisition mechanism to move outside the recess to make it convenient for fingerprint acquisition, a roller in the cleaning component is abutted against the surface of the fingerprint window in movement to remove surface dust and residual fingerprints, and accordingly safety and reliability in use are improvement; after use, automatic resetting of a pressing panel is realized through first springs, then a retractable frame drives the fingerprint window to move into the recess, and accordingly surface dust of the fingerprint window is prevented, and practicality of the fingerprint lock is improved.

The invention relates to the technical field of internet of things electronic communication, and discloses an internet of things based electronic communication cabinet. The cabinet includes a frame; the left and right sides at the lower part of the frame are provided with slide grooves; the slide grooves slidingly connected to slide blocks; the left and right sides at the internal of the frame areprovided with dustproof meshes; the inner wall of the frame is fixedly connected to object placing separating plates; communication equipment is placed on the object placing separating plates; the left and right sides on the top of the frame are fixedly connected to guiding columns; the guiding columns are slidingly connected to a crossbeam; and the left and right ends of the crossbeam are fixedly connected to connecting rods. Through the arrangement of a rack and pinion mechanism consisting of gears and racks, fans and dedusting frames can be driven to rotate through the mechanism, so that the purpose of performing heat dissipation and dedusting on the internal of the cabinet can be realized; the device is simple in operation; through the arrangement of a self-cleaning device, heat dissipation can be performed on the internal of the frame, and surface dust can be removed as well, so that heat dissipation effects can be enhanced; and the cabinet is reasonable in design and suitable for popularization and usage.

The invention relates to motor maintenance equipment, in particular to motor surface dust comprehensive sweeping equipment for motor maintenance. The technical effects that the motor surface dust comprehensive sweeping equipment for motor maintenance is capable of saving manpower and time and low in labor intensity, dust is not liable to be inhaled by workers, and the motor surface dust comprehensive sweeping equipment does not influence physical health are achieved. In order to achieve the technical effects, the provided motor surface dust comprehensive sweeping equipment for motor maintenance comprises a bottom plate and the like. A support is vertically mounted on the left side of the bottom plate in a bolt connection mode. A rotary fixing device is arranged in the position, on the right side of the support, of the top of the bottom plate. Dust on the surface of a motor can be cleaned up rapidly, and the effects that manpower and time are saved, the labor intensity is low, dust is not liable to be inhaled by workers, and the motor surface dust comprehensive sweeping equipment does not influence physical health are achieved.

The invention provides a natural environment-friendly surface dust suppression curing agent and a preparation method thereof. The curing agent is characterized by being prepared from the following components in parts by weight: 35-40 parts of a water-soluble polymer, 15-20 parts of modified cellulose, 15-20 parts of starch, 2-5 parts of polyvinyl alcohol, 2-5 parts of anhydrous copper sulfate, 2-3parts of a dispersant, 10-15 part of a crosslinking agent and 90-100 parts of water. The obtained product is rapidly dissolved and can be uniformly sprayed to the surface of dust, so that dust particles can be fixed and agglomerate very effectively in a short time. The curing agent is corrosion-free to vehicles and railway tracks, soluble in water and waterproof; a waterproof shell cannot be dissolved in water once formed. A curing layer with high elasticity can still be formed under the unfrozen condition and has certain strength and toughness, and people can walk on the curing layer withoutbreaking the curing layer due to existence of elasticity.

The invention discloses a fermented preparation method of sea cucumber, comprising the following steps: the sea cucumber is cleaned to remove the surface dust, salt, visceral remains, calcareous infarct on the month of the sea cucumber; the sea cucumber is soaked in water for 12-24h to desalt; the sea cucumber is put into a pressure cooker of 0.05-0.15MPa to be boiled with high pressure for 15-35min and then be put into water of -4-4 DEG C to be fermented for 20-24h. The method can shorten the boiling and preparation time of the sea cucumber in traditional method and overcomes the shortages that the preparation method of sea cucumber is long in the current technology and the nutrition loss is big. The water-risen sea cucumber processed by the method of the invention has the advantages of little nutrition loss, plump shape, large rehydration multiple, good sanitary quality, etc.

The invention provides a heliostat cleaner comprising a cleaning platform, a cleaning mechanism frame, a cleaning mechanism, at least two sponge members, a plurality of nozzles, and a spray controller. The cleaning mechanism is used for cleaning a heliostat. The sponge members are used for cleaning the surface of the heliostat and both arranged on the cleaning mechanism. The nozzles are used for spraying water to the surface of the heliostat and disposed on the cleaning mechanism frame. The nozzles are arranged between the sponge members. The spray controller is used for controlling the nozzles to spray water. One sponge member is used to wipe the surface of the heliostat to be cleaned, for the first time to remove surface dust on the surface of the heliostat; after the spray controller controls the nozzles to spray water, the other sponge member is used to wipe the residual water and dust on the surface of the heliostat to be cleaned, for the second time. Compared to the prior art, the heliostat cleaner has the advantages that the heliostat is cleaned twice with the sponge, the features of light weight and ease of deformation in the sponge ensure that the sponge can fully contact with the surface of the heliostat, the heliostat is suitable for use in dry, dusty environments such as deserts and plateaus, less water is used, and cleaning effect is better.

The invention discloses a method and device for classifying defects of L0 pictures in AOI detection. The method comprises the steps that defect detection is conducted on L0 pictures of a panel to determine all brightness defects; surface dust filtration is conducted on the detected brightness defects; the brightness defects are switched to a detection picture one by one for re-judgment, light transmission at the defect positions of the panel proves foreign matter brightness defects, light non-transmission proves bright point type defects, and the detection picture is a picture only displayingbacklight and having no voltage signal. Foreign matter brightness and bright points can be accurately classified by adding one detection picture to re-judge defects, the method is simple and effective, the practicability is strong, the performance of an AOI detection system is effectively improved, and the method has the advantages of being easy to achieve, low in cost and good in practicability.

The invention relates to a rapid-opening mechanism of a paper money channel for a financial machine, comprising a fixing seat, a movable frame and a rear cover, wherein a money receiving impeller and a money receiving inlet are arranged in the fixing seat, a money setting part is arranged in the movable frame, the rear cover is hinged on the movable frame, and the movable frame is hinged on the fixing seat. A paper money dragging and checking channel is formed between mutual-hinged opposite surfaces of the rear cover and the movable frame, a paper money transmitting channel communicated with the paper money dragging and checking channel is formed between mutual-hinged opposite surfaces of the movable frame and the fixing seat, and the paper money dragging and checking channel is arranged vertically. The rapid-opening mechanism overcomes disadvantages in the prior art that a paper money channel of a common financial checking machine has insufficient opening scope and a sensor is easilydisturbed. Through the design of the rapid-opening mechanism, blocked paper money can be taken out conveniently, and meanwhile, the surface dust sweeping and the fault removing of various sensitive sensors and the maintenance of equipment can be properly convenient. The rapid-opening mechanism greatly improves the precision of signal detection, and has the advantages of compact structure and strong reliability.

The invention provides a chemical milling method for titanium alloy blades. The method is implemented according to the following steps: (1) washing a titanium alloy blade subjected to finish forging with water in order to remove surface dust, adopting organic solvent to remove surface oil stain and then removing the organic solvent; (2) immersing the titanium alloy blade after the organic solvent is removed in chemical milling solution for 3 to 15 minutes; (3) cleaning the obtained product with room-temperature water to remove residual acid solution on the surface and then immersing the obtained product in dust-removing solution for 3 to 15minutes; and (4) removing the residual acid solution on the surface of the titanium alloy blade after dust removal. The method can effectively control the rate of corroding the surface of the blade by preparing the chemical milling solution so as to allow titanium alloy blades to meet precision requirements. The whole chemical milling process is simple in method and easy to control, and can meet design requirements without machining blade discs, blade backs, inner edges and surfaces of the titanium alloy blades.

The invention relates to the technical field of wool sweater processing, and discloses a machine for removing dust and balls from the surface of wool and cashmere products. The inside of the feed port is provided with a sweater fabric, rollers are provided on both sides of the sweater fabric, a motor is provided on the top of the body, and the output shaft of the motor passes through a coupling A rotating shaft passing through the body is rotatably connected, and a connecting block is fixedly connected to the bottom of the rotating shaft, and fan blades are symmetrically arranged on both sides of the connecting block. The wool and cashmere product surface dust removal machine can effectively blow up the dust on the woolen sweater fabric, prevent the dust from sticking to the woolen sweater fabric, reduce people's burden, increase people's work efficiency, and can effectively clean the woolen sweater. The hair balls on the sweater fabric are cleaned, so that people do not need to clean the sweater fabric twice.

The invention discloses a rehydration method for sea cucumber, which comprises the following steps: placing dry sea cucumber into clear water and washing surface dust and salinity; placing sea cucumber in clean water, heating to 30-60 DEG C. by micro wave, keeping the temperature for 20-90 min, and cooling naturally; cleaning the sea cucumber internal organ and impurity, placing sea cucumber into purified water, heating to 60-95 DEG C. by microwave, and keeping the temperature for 20-40 min, cooling naturally, heating to 60-95 DEG C again, keeping the temperature for 10-30 min; finally placing sea cucumber into purified water after cooling, placing in an enclosed container for vacuum-pumping, keeping the degree of vacuum at 0.02-0.09 MP, placing the sea cucumber into -4-4 DEG C. for rehydration about 6-10 hours, and obtaining the finished product, and the invention has the advantages of short time, low temperature, less nutrition loss, large rehydration multiple, plump and complete shape and glistened color.

This invention can improve the design for city road. It's features are: Between the motor-vehicle-road and non-motor-vehicle-road install a bare ground zone, its surface is lower than the city road, so the section of city road is as W shape, it provide for the dust, mud and surface dust a way-out, so the zone of bare ground can be planted some trees and flowers along the road.

The invention relates to a device for cleaning dust on the surface of a battery, in particular to a device for comprehensively cleaning dust on the surface of a battery for daily maintenance of a computer power supply. The technical problem to be solved by the present invention is to provide a device for comprehensively cleaning dust on the surface of batteries for daily maintenance of computer power supplies, which is simple in operation, low in labor intensity, good in cleaning effect, does not affect the health of operators, and has high work efficiency. In order to solve the above-mentioned technical problems, the present invention provides such a device for comprehensively cleaning dust on the battery surface for daily maintenance of computer power supplies, including a bottom plate, etc.; The top is provided with a rotating device, and the rotating part of the rotating device is connected with a placement frame. The invention achieves the effects of simple operation, low labor intensity, good cleaning effect, no influence on the health of operators, and high work efficiency.