62results about How to "Not easy to erase" patented technology

An embodiment of the invention discloses a system and a method for code assignment management. The system and the method for code assignment management are used for code assignment for unit goods produced by manufacturers to be convenient for goods tracing. The method includes: spraying case codes on packaging cases by means of the code spraying technique, wherein the case codes are used for marking goods corresponding to the packaging cases; stacking the multiple loaded packaging cases onto a pallet; and associating the case codes of each packaging case on the pallet with identity information of dealers. By means of the system and a method for code assignment management, coverage rate of goods code assignment and accuracy rate of goods tracing can be increased.

The invention discloses a method for synthesizing a molecular sieve membrane, which adopts a mode of crystal seed coating by a crystal seed slurry coating method for the synthesis of the molecular sieve membrane. A sol with a composition similar to that of a synthetic fluid for synthesizing the molecular sieve membrane is prepared, and the sol is mixed with molecular sieve crystals and water according to a certain proportion to prepare a crystal seed slurry; a supporting body is soaked with water, and after the surface of the supporting body is dried in the air, the crystal seed slurry is coated on the surface; when the surface is almost dry, the coating is strickled and dried to obtain a supporting body with a crystal seed layer; finally the molecular sieve membrane is synthesized by a hydrothermal synthesis method. The crystal seed layer prepared by the invention can eliminate possible defects on the supporting body surface, is distributed uniformly, and is not easy to be erased from the supporting body surface, so the synthesized molecular sieve membrane has a continuous and dense surface, excellent separation performance, good repeatability, and is applicable to large-scale production.

The invention relates to the technical field of formaldehyde purification, in particular to a formaldehyde removing composition and a formaldehyde removing method. The formaldehyde removing composition comprises the following components by weight: 3-20 parts of a formaldehyde capture agent, 0.1-0.5 part of an adhesive agent, 0.2-1 part of a stabilizer, 10-30 parts of a cosolvent, and 80-120 partsof a solvent. Specifically, the formaldehyde capture agent is selected from one or more of ethylene urea, a hydrazide compound, ammonia water, glycine, ammonium chloride and chitosan.

The invention discloses a device for preparing an intermediate infrared fiber bragg grating. The device is characterized in that a femtosecond laser device emits a high-energy femtosecond laser, and is aligned by a collimating lens; the size of a laser spot is adjusted by a small aperture; laser pulse energy is adjusted by a 1/2 wave plate and a glan prism; finally, the laser enters a convex-plane cylindrical lens through a reflector, and then a diffraction light is generated through a bragg phase mask; +1 level and -1 level diffraction lights generate interference fringes in an overlapping region; an optical fiber is erected on a precision displacement platform; one end of the optical fiber is connected with a broadband light source, and the other end of the optical fiber is connected with a spectral measurement instrument. By adopting the device, a method for preparing the intermediate infrared fiber bragg grating is achieved. The optical system is simple, the method has no demand on the light sensitivity of the optical fiber except for the advantages of traditional ultraviolet (UV) excimer laser writing grating, and the prepared fiber grating has excellent temperature stability.

The invention relates to a webpage document watermark embedding method and device. The method comprises the steps that 1, when a user logs in a web browser to access a web application system page, intercepting an HTTP protocol data packet of a web application; step 2, analyzing an HTTP response header data packet in the intercepted HTTP protocol data packet to obtain HTTP response content data; 3,analyzing the HTTP response content data, and embedding watermark information by modifying the page content data; and 4, returning the page file embedded with the watermark to the browser for normalpage content analysis and page content rendering. According to the method, the embedded text traceability tracking information is visually invisible, so that visual interference caused by an existingscreen dominant watermarking technology is avoided; and meanwhile, the watermark information is embedded by taking the text content in the webpage document as a carrier, is not easy to erase manually,and can resist screen shooting or screen capture, so that the safety performance is higher.

The invention discloses a temperature sensor device based on a chalcogenide glass material and a construction method thereof. The temperature sensor device includes a broadband light source, a first spectrum analyzer and a long-period fiber grating made of a chalcogenide glass material. The two ends of the long-period fiber grating are respectively connected with the broadband light source and thefirst spectrum analyzer. The long-period fiber grating is obtained in a way that a single-mode chalcogenide glass fiber is subjected to fused tapering to form a tapered chalcogenide fiber and the tapered chalcogenide fiber is written in the long-period fiber grating via femtosecond laser pulses. The temperature sense device based on the chalcogenide glass material has a temperature sensitivity of2.97186 nm/DEG C, which is significantly higher than the temperature sensitivity of 0.04-0.1 nm/DEG C of the traditional quartz long-period fiber grating sensor, is more suitable for high-sensitivitytemperature transmission, and has a wider application prospect in the field of high sensitivity sensing.

The invention discloses a stoving varnish writing board and a preparing method for the stoving varnish writing board, and relates to the technical field of teaching tools. The stoving varnish writing board comprises a substrate, the upper surface of the substrate is sequentially provided with a passivation layer and a stoving varnish layer, the upper surface of the stoving varnish layer is provided with an impervious layer, the stoving varnish layer is made of stoving varnish, and the stoving varnish is formed by mixing, grinding and filtering, by mass, 30-40% of acrylic resin, 0.5-1% of dispersing agents, 1.5-3% of coloring pigments, 8-15% of anti-settling agents, 20-32% of water, 10-15% of urea, melamine and formaldehyde resin, 1-2% of catalysts, 10-18% of wear-resistant filler, 2-5% of flatting agents and 5-10% of auxiliaries. The stoving varnish writing board has the advantages that hardness is high, glossiness is low, the surface of the stoving varnish writing board is uniform, coarseness is moderate and character strokes can be prevented from permeating the writing board, chalk and fountain pens can be used for writing, vision of teachers and students can be effectively protected, the service life of the writing board is prolonged, the preparation process is good and environment protection is achieved.

The invention provides a temperature sensing system with an FBG. The temperature sensing system with the FBG comprises a light source (1), a fiber circulator (2), one or more FBG sensors (5), a coupler (6), an optical fiber (7), a collimating lens (8), a photorefractive holographic grating (9), a focusing and imaging lens (10), an imaging device (11) and a processor (15). The FBG sensors are introduced in the temperature measurement field, information is sent based on optical signals, and the temperature sensing system with the FBG has the advantages of electromagnetic interface resistance, corrosion resistance, high temperature resistance, high voltage resistance, long service life, good stability, high flexibility and high resolution ratio, and can obtain all spectrums from the same channel.

The invention relates to a code spraying device for an inner circle of a steel roll, which consists of a wheelbarrow, a control device and an electric control nozzle. The control device is arranged on the wheelbarrow; PLC is adopted by the control device. The invention is characterized in that a longitudinal track is arranged on the wheelbarrow; a manipulator is arranged on the longitudinal track; the electric control nozzle is arranged on the end of the manipulator; a motor with a large Z shaft is arranged on the upper end of the longitudinal track; the motor with a large Z shaft controls the manipulator to move up and down on the longitudinal track. As the mode that adopts PLC to control the manipulator is adopted by the invention for controlling the rising, lowering, advancing, backing off and the rotary spraying in the inner circle of the steel roll of the electric control nozzle for leading the spraying starting point of the invention to be freely set in 360 degrees in the arc of the inner circle of the steel roll; the locating precision is high and the property is stable; if special ink and a thinner are adopted in the electric control nozzle, the ink has a high absorption capacity and is hard to be erased. The code spraying device can realize to automatically finish the code spraying operation of the inner circle of the steel roll, improve the working efficiency and remarkably improve the code spraying effect of the inner circle of the steel roll.

The invention provides novel mobile phone glass. The glass comprises a glass substrate, an AR film, an AF film, an AS film and an anti-peeping film, wherein the anti-peeping film consists of a photonic crystal material. The preparation method comprises the steps as follows: (1) cutting; (2) hot-bending machining; (3) CNC appearance machining; (4) cleaning and check; (5) reinforcement; (6) polishing; (7) tempering; (8) transferring; (9) baking; (10) cleaning and check; (11) vacuum coating; (12) packaging. Fingerprints and oil stains cannot stick to the prepared novel mobile phone glass easily and can be wiped easily; the novel mobile phone glass has the smooth surface, touches comfortable, is not easy to scrape, has a thin film layer and excellent optical performance, does not change original texture wear resistance and can effectively reduce transmitted intensity of blue light and play an anti-peeping function.

The invention discloses a hanger tool for a cast iron oil bottom shell. The hanger tool comprises a connecting plate, a hanging rod, a gravity center regulating mechanism and a hanging ring, wherein a handle screw hole is formed in the upper center of the connecting plate, and a handle is fixedly arranged on the connecting plate; a plurality of circular pin through holes are formed in the lower part of the connecting plate, and a plurality of circular pins adaptive to the through holes of the cast iron oil bottom shell are fixedly arranged; one end of the hanging rod is fixed onto the connecting plate by welding, and the other end of the hanging rod is provided with a clamping block mounting position; the gravity center regulating mechanism comprises a clamping block, a bolt and a gravity ring, and a locking bolt hole is formed in the top end of the gravity center regulating mechanism; the side surface of the clamping block is equipped with a hanging rod through hole; the clamping block passes through the hanging rod through hole and is arranged on the clamping block mounting position; one end of the gravity ring passes through the lifting rod, and is matched with the clamping block; and the gravity ring is fixedly arranged on the hanging rod through the bolt. The hanger tool for the cast iron oil bottom shell disclosed by the invention greatly saves labor power, is safe, horizontal and steady while the cast iron oil bottom shell is guaranteed to be lifted, and is aligned to a hole easier.

The invention relates to a keycap with an invisible character effect, and a production method and the production method application thereof. The keycap comprises a shading shell and a light transmission inner shell, the light transmission inner shell comprises an inner shell external surface, an inner shell internal surface and an inner shell thickness, the inner shell external surface is provided with at least a light transmission symbol portion with a micro protrusion and a flat portion, the light transmission symbol portion with the micro protrusion comprises an outer protruding light transmission surface and an inner concave light transmission surface and is used for generating a stereo perception and a wide light refraction range, the shading shell comprises a shell external surface, a shell inner surface and a shell thickness, and the shell inner surface is recessed towards the shell external surface so that the shell thickness is reduced and an intaglio symbol portion is formed. According to the keycap, the shading shell performs intaglio of a character pattern, when light emits in the keycap, the character pattern is displayed by the shading shell, the character on the keycap can be see whatever the light condition is, mimeograph is avoided, environmental protection and durability are achieved, and more importantly, the damage to eyes is avoided.

The invention discloses a method for manufacturing a metal shell power supply nameplate based on a laser technology. The method comprises the following steps of: A, forming a layer of film with color different from that of aluminum on an aluminum shell of a power supply; and B, forming a laser nameplate pattern on the aluminum shell of the power supply in a laser way by using a laser marking machine according to a preset nameplate shape. By the method, the material of the nameplate is saved; the direct cost is reduced; because the links of material purchase, outsourcing processing, transferring, store management and the like are not required when the nameplate is manufactured by using laser, the management cost is reduced; and production by the method is more advantageous in the present situation of small orders and many machine types, because the method is not controlled by the number of orders and the orders can be carved and printed regardless of the number of the orders. The nameplate manufactured by the invention has waterproofness, moisture resistance, high temperature resistance, simple processing process and low cost, and is not easy to erase. At the same time, materials of a shell of a product are convenient to prepare; to products with different powers or different clients, one part number can be used for material preparation if the size of the shells is the same, so the method is relatively high in flexibility.

The invention relates to the technical field of a cleaning agent and specifically provides a cleaning agent for an aluminum fin and a cleaning method. The invention aims to promote the smoothness of an aluminum section bar. In order to achieve the aim, the cleaning agent provided by the invention comprises the following raw materials in parts by weight: 18-28 parts of a corrosion inhibitor, 15-45 parts of inorganic salt, 5-15 parts of an accelerant, 5-12 parts of a slime release agent, 1-5 parts of a brightener and 30-60 parts of water. According to the cleaning method for the aluminum fin, provided by the invention, the cleaning agent is adopted for cleaning the aluminum fin; the cleaning agent is diluted, sprayed and brushed onto the surface of the aluminum fin so as to achieve the cleaning aim or the aluminum fin is soaked in the diluted cleaning agent so as to achieve the cleaning aim; the brightener is adopted for forming a protecting film on the surface of the aluminum fin, so that the surface of the de-scaled aluminum fin is clean and bright, and the physical performance and secondary processing performance of the aluminum fin are not reduced; and under the dual functions of the corrosion inhibitor and the slime release agent, the corrosion resistance of the aluminum fin is promoted, the cleaning time is shortened, and the cleaning is completed within 3min-5min.

The invention provides a silicon and fluorine-containing antifouling easy-cleaning agent which is only composed of a silicon-fluorine copolymer and an FF31 type perfluorocarbon cyclic ether mixture solvent, wherein the silicon-fluorine copolymer is prepared through conventional solution type free radical polymerization by taking gamma-methylacrylyloxypropylmethylethoxy silane and perfluor C4-C18 alkyl acrylate as copolymerization monomers; the raw materials are simple, easily available and low in price, and the production process is mature and reliable; moreover, a finished product of the antifouling easy-cleaning agent is simple to use and low in price; after firm forming and curing, the antifouling easy-cleaning agent has good water/oil resistance and is not contaminated easily; a film layer has high strength and is not easy to wipe; the antifouling easy-cleaning agent can be widely applied to the surface of a glass substrate, a ceramic substrate or a plastic substrate, and is particularly applicable to the surface of an electronic touch screen.

The invention provides marking ink with strong-adhesion writing lines, a preparation method thereof and a corresponding marking pen. The marking pen is composed of the marking ink with strong adhesion, a fiber nib with porosity of 35-50%, and a fiber water-storage pen refill with fiber density of 0.16-0.19 g/cm<3>. The formula of the marking ink with strong adhesion is composed of a coloring agent, resin A, resin B, a humectant, a resin improvement additive and a solvent. The problem that the ink of a common marking pen with the application of single resin has poor adhesion on a writing interface and is easy to erase after wiped by a finger on individual writing interfaces can be overcome. Writing lines of the marking ink of the invention are not erased when written on writing interfaces such as PE plastic ziplock bags, PP penholder's smooth surface after wiped by fingers, are not erased on glass panes, PMMA materials, ceramic surfaces, PP smooth surfaces, PP frosted surfaces and PE films when adhesion reaches 80.0 N, and are not erased on OPP bags when adhesion reaches 70.0 N.

A medicine in the form of gel for treating the infantile red buttocks is prepared from arnebia root, safflower, carbomer, dimethyl silica oil, nipagin ethylester, Na2EDTA, sodium bicarbonate, and purified water. Its preparing process is also disclosed.

The invention discloses an oil stain resisting film for a lens. The oil stain resisting film is arranged on each of two surfaces of the lens. The oil stain resisting film comprises the following components in percent by weight: 60-80 percent of magnesium fluoride and 20-40 percent of zirconium oxide. By using the magnesium fluoride in the oil stain resisting film disclosed by the invention, oil stain and water can not be difficultly adhered onto the lens and can be easily wiped even if being adhered onto the lens, so that the light transmittance of the lens is increased, and the use effect is added. In addition, due to the addition of the zirconium oxide, the wear resistance of the oil stain resisting film can be improved, the lens can be prevented from being scraped due to excessive wiping, and the service life of the lens is prolonged.

The invention relates to the technical field of integrated circuits, particularly to a multiple-way switching PUF circuit and a serial number output circuit. The multiple-way switching PUF circuit comprises a time-delay switching circuit and a decoding circuit, wherein the time-delay switching circuit selects the identical pulse signals input from different signal input ends, converts the pulse signals into delay signals of different rates and sequentially outputs the delay signals through different signal output ends; the input end of the decoding circuit is correspondingly connected with a plurality of signal output ends of the time-delay switching circuit, and according to the sequence that the delay signals output by the signal output ends reach the decoding circuit, processes the delay signal first reaching the decoding circuit to generate dual-bit output values, so that chips manufactured from the multiple-way switching PUF circuit obtain ideal indexes on randomness, uniqueness, reliability on the like and reduce tape-out risks. Besides, the invention also discloses a serial number output circuit composed of a plurality of connected PUF circuits, and accordingly the serial number output circuit obtains a serial number concealing and protecting function.

The invention discloses a coating device convenient for wet cleaning of paint on outer sides of spraying guns. A first fixed column is arranged on the upper side surface in an outer shell, and is arranged on the left side of a dryer; meanwhile, a first bearing is arranged on the right side surface of the first fixed column; a first rotating shaft is arranged on the right side of the first bearing;meanwhile, a first limiting frame is arranged at the right end of the first rotating shaft; a first internal thread hole is formed in the upper side of the first limiting frame; a first external thread column is inserted in the first internal thread hole; and a second bearing is arranged at the lower end of the first external thread column. The coating device convenient for wet cleaning of the paint on the outer sides of the spraying guns is provided with a fixed cylinder and a brush; after objects are sprayed by the coating device, a nozzle enters the brush in the fixed cylinder; at this time, the paint on the outer side surface of the nozzle is dipped and softened by water in the fixed cylinder; through a second motor, the brush is driven to rotate; and through rotation of the brush, the paint on the outer side surface of the nozzle is cleaned, and the use of the nozzle is not easily influenced.

The invention provides a metal workpiece mark printing device; a device base is pivotally provided with printing roller trains having a plurality of cases; all printing roller trains are sleeved on a support mandrel; each case is respectively driven by a drive source so as to change printing portion typefaces needing printing, thus greatly improving typeface changing efficiency, and greatly improving usage convenience; the printing device uses an impressing unit to form marks through an impressing mode, and the marks are clear and hard to erase, thus improving following construction accuracy and convenience.

The invention relates to the technical field of hyphantria cunea prevention and treatment, in particular to a synthetic method for synthesizing sex pheromone of hyphantria cunea. According to a traditional method for synthesizing (3Z,6Z,9S,10R)-9,10-epoxy-3,6-heneicosadiene by using propargyl alcohol as a starting material in the traditional technology, various side reactions are liable to occur during a sulfonic acid esterification reaction on a key intermediate (2S,3R)-2,3-epoxy-1-tetradecanol by using trifluoromethanesulfonic anhydride. In order to solve the problems, the (3Z,6Z,9S,10R)-9,10-epoxy-3,6-heneicosadiene is successfully synthesized by taking propargyl alcohol as an initial raw material and taking a Sharpless asymmetric dihydroxylation reaction as a key step without the step of the sulfonic acid esterification reaction on a key intermediate (2S,3R)-2,3-epoxy-1-tetradecanol by trifluoromethanesulfonic anhydride in the preparation process. Therefore, the whole reaction is mild and controllable and few in side reactions, and enantioselectivity is high.

The invention discloses stamp-pad ink for a meat inspection end stamp and a preparation method thereof. The stamp-pad ink comprises 94 to 98% of anhydrous ethanol, 1 to 3% of a red food colorant and 1 to 3% of edible glycerin. The preparation method comprises the following steps of putting the red food colorant into anhydrous ethanol, immersing the red food colorant for 1 hour, fully stirring to obtain a saturated solution, filtering, adding edible glycerin into the filtrate, stirring, and carrying out sealing to obtain the stamp-pad ink for a meat inspection end stamp. The stamp-pad ink for a meat inspection end stamp adopts easily available and cheap raw materials, does not produce any damage on the human body and is suitable for meat inspection in meat-processing companies.