65results about How to "No trace" patented technology

The invention belongs to the field of pipes, relates to an enhanced drainage pipe and mainly relates to a superstrong-muting PE (polyethylene) core layer micro-foamed drainage pipe which is suitable for wastewater discharging, engineering transforming projects and home decoration of villa communities, high-rise residential communities, high-grade residential apartment communities and the like and industrial building fields like water discharging, sewage discharging, waste discharging and the like of industrial enterprises. The superstrong-muting PE composite drainage pipe is a multilayer composite body formed by a high-density polyethylene resin inner layer, a middle PE micro-foamed layer and a high-density polyethylene resin outer layer, the thickness ratio of the inner layer, the middle layer and the outer layer is 1:4:1, and the PE micro-foamed layer is composed of regenerated polyethylene resin powder, inorganic filler or organic filler, natural fibers, a cross-linking agent, a coupling agent, a lubricating agent, a foaming agent and an antioxidant. The superstrong-muting PE core layer micro-foamed drainage pipe has excellent denoising and muting performance, superstrong resistance to chemical corrosion and good impact resistance.

The invention discloses a manufacturing process of a solid wood composite door. The manufacturing process of the solid wood composite door comprises the following steps that 1, a door leaf, a door casing, a plate A and a plate B are prepared at the same time, the prepared door leaf, door casing, plate A and plate B are spliced after paint spraying, and in the mounting process, the two sides of a stand frame of the spliced door leaf are spliced with a side door sleeve plate B through silica gel strips, the side door sleeve plate B and a side door sleeve plate A are spliced, a side casing wire is arranged on one side of the side door sleeve plate B, and a side door casing wire is arranged on one side of the side door sleeve plate A; in the mounting process, the side casing wire and the side door casing wire are fixed to a wall to complete mounting of a wooden door. The manufacturing process is simple and easy and convenient to operate, labor productivity is improved, production time is saved, production cost is lowered, and greater benefits are obtained.

The invention discloses an invoice management method and system based on a block chain. The method comprises the steps that each logistics transportation information node acquires logistics transaction information; a sequencing node is used for sequencing the logistics transaction information, generating a logistics transaction information set, then creating a block and broadcasting the block to each logistics transportation information node and the invoice management node; each logistics transportation information node and each invoice management node verify the transaction information in theblock, and write the block into the block chain after the verification is passed; the invoice management node acquires logistics transaction information of a target order of which the service is ended, verifies the logistics transaction information, confirms reconciliation information of the target order, broadcasts the reconciliation information of the target order in the whole network, and writes the reconciliation information into a block chain of the invoice management node; during invoicing, the invoice management node acquires reconciliation information and verifies the reconciliation information, and issues an invoice after the verification is passed, and writes the invoice into a self block chain after the invoice is broadcasted in the whole network. The block chain technology isadopted, the whole waybill business process can be tracked, and evidences are provided for invoicing.

The invention discloses a single-surface traceless welding method for a stainless steel composite panel of an elevator, comprising the following steps of: (1) eliminating oil stains on respective surfaces to be welded of a cold (hot) rolled steel plate and a stainless steel surface plate; (2) placing the stainless steel surface plate on a work table, respectively placing a separation bar at two sides of a position to be welded and 5-10 mm away from the position to be welded, and then placing the cold (hot) rolled steel plate on the separation bar so that a gap of 0.08-0.12mm is reserved between the cold (hot) rolled steel plate and the stainless steel surface plate; (3) carrying out laser welding on the cold (hot) rolled steel plate and the stainless steel surface plate with a mixed gas of oxygen gas and inert gas as a protective gas to ensure that a welding seam penetrates through the cold (hot) rolled steel plate and the depth of the welding seam on the stainless steel surface plate is controlled to be 1/3-1/2 of the thickness of the stainless steel surface plate; and ensuring that the stainless steel surface plate, the cold (hot) rolled steel plate and the separation bar are clamped tightly in a welding process. The method provided by the invention has the characteristics of no trace on a single stainless steel panel surface, high welding seam quality and high strength of a combination structure.

The invention discloses a washing liquid for a solar cell silk screen printing process, which consists of C3-C12 ether, C3-C9 ester, C2-C5 alcohol, C5-C18 alcohol ether compound and an additive. The invention provides a solvent type washing liquid, which is suitable for the solar cell industry, is particular suitable for washing metal slurry, resin, oil stains and printing equipment, has high washing efficiency and small pollution, toxicity and damage to human bodies, and is dry quickly without residual marks after washing.

The invention discloses a carbon nanotube modified PET antistatic thin film. A method for preparing the carbon nanotube modified PET antistatic thin film includes: stirring carbon nanotube at a high speed; at the same time, dissolving a dispersant in a liquid, and spraying the liquid into carbon nanotube powder while being stirred to activate the surface of the carbon nanotube; adding obtained activated carbon nanotube as a conductive filling agent into a PET material matrix to prepare PET/carbon nanotube conductive masterbatch good in conductive performance; mixing the PET/carbon nanotube conductive masterbatch with auxiliaries like PET matrix resin, a thermal oxidation stabilizer, a flow modifier and a friction-resistant agent, and obtaining the PET antistatic thin film through blow molding, tape casting or bidirectional stretching processes. The PET antistatic thin film prepared by the method is good in conductive performance, high in antistatic durability and long in service life.

The invention discloses an active carbon nanotube modified polyethylene antistatic thin film. The active carbon nanotube modified polyethylene antistatic thin film is prepared from the following components in parts by mass: 70 to 95 parts of a PE (Polyethylene) polymer matrix material, 0.01 to 10 parts of active carbon nanotubes and 0.1 to 20 parts of an auxiliary agent; the auxiliary agent is formed by mixing one or more than two of a dispersant B, a coupling agent, an antioxidant, a lubricant and an anti-abrasion agent; the active carbon nanotubes are prepared by dissolving a dispersant A into a solvent to obtain a dispersant solution, spraying the dispersant solution into carbon nanotubes stirred at a high speed through a high-pressure spraying method and stirring and mixing at a high speed. The polyethylene antistatic thin film disclosed by the invention is good in conductive property, high in antistatic durability and long in service life.

The invention provides a wide-range titanium plate flaying polishing machine which comprises a capsule body used for titanium plate polishing, a first sending device connected with the front end of the capsule body and a second sending device connected with the back end of the capsule body, wherein the capsule body is provided with a polishing platform, the polishing platform is provided with a polishing roller, a polishing roller driving system is directly fixed under the polishing roller, a pressing and rectifying roller used for fixing titanium plate type and maintaining the polishing flatness is arranged on the front end of the polishing roller, a temperature lowering system is arranged between the pressing and rectifying roller and the polishing roller, the temperature lowering system is connected to a water circulating system at the bottom part of the polishing platform, an in-capsule sending driving system is arranged at the bottom part of the capsule body and used for operating the polishing platform, and a dust removing device is arranged above the capsule body. All the devices are linked and work synchronously, the operation is controlled automatically by only one person, the device is an advanced and scientific panel surface mechanical processing device, the traditional manual grinding wheel polishing technology is completely changed, the product quality is good, and the labor production rate is greatly improved.

The invention discloses a bromine corrosion prevention painting, which comprises the following parts: 48-55% dimethylbenzene, 45-50% 120# petrol, 6-8% DOP, 5-6% petrol resin, 6-10% butyl rubber and fitful dye. The preparing method comprises the following steps: putting dimethylbenzene and 120# petrol in the autoclave; blending 20min to mix evenly; adding DOP, petrol resin and butyl rubber; modifying with the speed at 2400-3000r/min for 2h; adding dye to stir at 3600-4000r/min; cutting at high speed to obtain the product with fineness at 60um; displaying aging-proof property and strong adhesion force.

The present invention relates to a method for correcting deformation of a terminal housing, the steps comprising: S100, providing a terminal housing to be corrected, the terminal housing to be corrected includes a bottom wall and a side wall connected to the bottom wall, the bottom wall The amount of deformation is outside the allowable tolerance range; S200, heat treatment on the bottom wall of the terminal housing to be corrected, so that the bottom wall expands and produces reverse deformation; S300, the terminal housing and standard parts after the heat treatment are completed A comparison is made to determine whether the standard is met, and if the standard is not met, the heat treatment on the bottom wall of the terminal housing is continued until the deformation of the bottom wall is within the allowable tolerance range. In the method for correcting the deformation of the terminal housing described above, the terminal housing to be corrected is subjected to heat treatment, and the terminal housing to be corrected expands and deforms and causes the terminal housing to bend and deform away from the heating source. The operation is simple and the cost is low, and the corrected terminal housing There are no traces on the surface, and the correction effect is good.

The invention discloses efficient scaling powder and a preparing method thereof. The efficient scaling powder is made of raw materials including polyacrylic acid, succinic acid, salicylic acid, 2-ethylhexyl epoxystearate, n-dodecanol ester, modified rosin, benzotriazole, benzimidazole, acrylic vinegar, acrylonitrile, benzyl alcohol, cyclohexanol, ethyl alcohol, a surface active agent, an antioxidant, nanosilicon dioxide, nano titanium dioxide and deionized water. The scaling powder is high in activity, the welding aid property is excellent, after welding, solid object is small in residue, cleaning is easy, the surface of a welded base body is transparent, clean and free of mark, the preparing method is simple, implementation is easy, and the powder is suitable for industrial production.

The invention discloses a carbon nanotube modified polypropylene antistatic film which is prepared by the following method: stirring carbon nanotube at high speed and simultaneously dissolving a dispersant in a liquid and spraying the liquid into the stirred carbon nanotube powder by a spraying mode to surface-activating the carbon nanotube, adding the active carbon nanotube used as a conductive filler into a PP material matrix to prepare PP/carbon nanotube conductive master batch with good conductivity, mixing the PP/carbon nanotube conductive master batch with PP matrix resin and a thermal-oxidative stabilizer, a flow modifier, an abrasive agent and other auxiliary agents, and preparing the polypropylene antistatic film by blow molding, tape-casting or two-way stretching technology. The prepared polypropylene antistatic film has good conductivity, strong antistatic endurance and long service life.

The invention provides a pair of smart glasses which can adjust length and width of the glasses freely without tools and can reduce the weight not contacting the face or even contacting the face, being characterized by inserting and fixing a fastener in an anti-skidding piece which is inserted and fixed with a glasses arms; being able to adjust the length from the frame to the arm sleeve by respectively adjusting the quantity for insertion of the glasses arms and the fastener relative to the anti-skidding piece; selecting the most suitable anti-skidding piece to fix to adjust the left and right interval of the anti-skidding piece; setting a freely bending guide piece on the extension cord for the glasses arms at the glasses arm side of the anti-skidding piece; inserting the glasses arms into the guide piece and the holde of the anti-skidding piece to bend the guide piece so as to perform deformation maintenance for the super elastic glasses arms; making the anti-skidding piece contact the upper side of the cheekbone to bear the weight of the glasses; making the arm sleeve contact the ear or the lateral head to prevent the frame skidding downward; setting heavy object in the arm sleeve, and adjustin the weight balance of the frame side through position sliding to get weight balance; and setting an exchangeable cover on the anti-skidding piece and the glasses arms to make a pair of smart glasses.

The invention provides a novel glass super-hydrophobic transparent efficient heat-insulating coating and a preparation method thereof, and relates to the field of building materials, in particular tothe novel glass super-hydrophobic transparent efficient heat-insulating coating. The novel glass super-hydrophobic transparent high-efficiency heat-insulating coating comprises the following raw materials by weight: 2400 to 2600 kg of aqueous fluorocarbon resin (with solid content of 45 to 50%), 1200 to 1300 kg of slurry, 1100 to 1300 kg of deionized water, 130 to 160 kg of a 1053 dispersant, 50 to 70 kg of a DP082 antifoaming agent, 30 to 50 kg of a WT102 thickener, 80 to 100 kg of texanol, 90 to 110 kg of leveling agent and 4 to 6 kg of dipropylene glycol. The method comprises: uniformly mixing the water-based fluorocarbon resin with the slurry in proportion, then adding deionized water, a dispersing agent, an antifoaming agent, a thickener, texanol, leveling agent, dipropylene glycol monomethyl ether and dipropylene glycol butyl ether, adjusting the pH value to 7, and dispersing in a dispersion machine at a high speed of 1500 rpm for 30 min to obtain the glass super-hydrophobic transparent efficient heat-insulating coating.

The invention discloses an activated carbon nanotube modified polypropylene (PP) antistatic film. The PP antistatic film is prepared from the following components in parts by mass: 70-95 parts of PP base materials, 0.01-10 parts of activated carbon nanotubes and 0.1-20 parts of an aid, wherein the aid is one or a mixture of two or more of a dispersant B, a coupling agent, an antioxidant, a lubricant and an abrasive agent; an activated carbon nanotube is prepared through the following steps: the dispersant A is dissolved in a solvent, and a dispersant solution is obtained; then, the dispersant solution is sprayed into the carbon nanotube stirred at a high speed with a high pressure spray method, and the activated carbon nanotube is prepared after high-speed stirring and mixing. The PP antistatic film has good conductivity, high antistatic durability and long service life.

Disclosed is a nevus-dispelling plaster for treating nevus, freckle, senile plaque and flat wart, wherein the weight ratio of plaster includes lime 45-55%, high degree spirit 35-45%, Yunnan baiyao 8-14%, camphor 3-7%.

The invention relates to a carrier rod type gate for an injection mold. The gate comprises a movable mold cavity, a movable template, a push rod fixing plate, a push plate, a carrier rod and a runner, wherein the movable mold cavity is fixed on the movable template through screws; the runner is arranged on the surface of the movable mold cavity; the carrier rod is fixed on the push rod fixing plate through the push plate; a semicircular notch is formed on the top of the carrier rod; the runner is opposite to and communicated with the semicircular notch; and a rotation stopping surface is arranged at the bottom of the carrier rod. The carrier rod type gate for the injection mold has a simple structure, works stably and is convenient to process; the injection molding period is greatly shortened; and one end of the curved runner extends to the internal side surface of a plastic product (the top surface of the mold cavity), so that the external surface of the plastic product is traceless, smooth and attractive and the requirements of people are met.

The invention discloses an aluminium alloy material and a preparation method thereof. The aluminium alloy material comprises the following steps by weight percent: 3%-10% of zinc, 0.5%-3% of magnesium, 0.1%-0.5% of copper, less than 0.1% of silicon, less than 0.2% of iron, less than 0.15% of chromium, less than 0.03% of titanium, less than 0.15% of total impurities (with less than 0.05% of singe impurity element) and the balance of aluminum.

The invention discloses a brake valve cleaning fluid is prepared from the following components in parts by weight: 2-8 parts of alkyl sodium sulfonate, 1-5 parts of sodium silicate, 0.5-1 part of paraben, 0.5-1 part of simethicone, 0.5-2 parts of alkyl glycoside, 20-30 parts of ethanol, 60-70 parts of isopropanol and 30-40 parts of deionized water. The invention further discloses a preparation method of the brake valve cleaning fluid. The preparation method comprises the steps of weighing and mixing. The cleaning fluid provided by the invention is convenient to use, has the characteristics ofbiodegradability, mild performance, corrosion resistance, bacteria resistance and no trace after being wiped, particularly has good compatibility to plastic products, and is suitable for surface cleaning of metal and plastic products.

The invention discloses a cloth paving device with a code spraying function. The device comprises a cloth paver and a platform, wherein conveying rails on which the paver slides and paves the cloth are formed on two sides of the platform; the cloth paver is provided with a cloth paving roller, a first sliding rail and a cloth cutting unit; the cloth paving roller and the first sliding rail are arranged corresponding to a width direction between the two conveying rails; the cloth cutting unit slides along the first sliding rail; the device also comprises a code spraying assembly arranged at the front end of the cloth cutting unit; the code spraying assembly comprises a second sliding rail, a code spraying unit and a control device; the second sliding rail is parallel to the first sliding rail; the code spraying unit is connected to the second sliding rail and slides along the second sliding rail; the control device is electrically connected to the cloth paver, the cloth cutting unit and the code spraying unit respectively. Through the cloth paving device and a method thereof, the code can be automatically sprayed; the encoding efficiency and accuracy are greatly improved; liquid capable of being heated to volatilize is used as encoding liquid; the encoding liquid is traceless and damage-free after being heated to volatilize in water; the requirements of actual production can be easily met.

The invention discloses a large-size titanium alloy structure micro-arc oxidation based on scanning cathode and an experimental verification method thereof. Through theoretical design and experimentalresearch and other manners, a large-size titanium alloy structure surface one-time micro-arc oxidation technology is achieved, the key technologies of scanning cathode device design, one-time large-area micro-arc oxidation technical process regulation and control and the like are achieved, thereby solving the problems of micro-arc oxidation process and film surface quality of large-size structural parts and improving the capacity of one-time area treatment to be more than 4m<2>, the oxidation efficiency is greatly improved, and a foundation is laid for micro-arc oxidation treatment on the surfaces of light alloy large-sized parts, such as aluminum alloy, magnesium alloy and the like, and complex parts.

The invention discloses a blanking mold of motor stator punching sheet with a sheet buckling groove. The blanking mold comprises an upper concave-convex mold and a lower concave-convex mold, wherein the middle of the upper concave-convex mold is provided with a rotor shaft hole male mold, a rotor key groove mold is arranged along the circumferential direction of the rotor shaft hole male mold, an upper concave ring is arranged around the outer side of the rotor shaft hole male mold, an upper elastic pad block is arranged in the upper concave ring, the lower side of the upper elastic pad block is connected with an upper discharging plate, the middle of the lower concave-convex mold is provided with a shaft hole in a position corresponding to the rotor shaft hole male mold, a stator excircle male mold is arranged at the excircle part of the lower concave-convex mold, a stator sheet buckling groove male mold is arranged along the inner diameter part of the stator excircle male mold, a lower concave ring is arranged around the outer side of the shaft hole, a lower elastic pad block is arranged in the lower concave ring, a lower discharging plate is connected onto the lower elastic pad block, and a sign groove male mold is also arranged on the lower concave-convex mold. Compared with the prior art, the blanking mold has the beneficial effects that the stator blanking and the processing in the buckling sheet groove can be simultaneously completed on one mold, and the work efficiency is improved.

The invention provides a titanium alloy component print-free micro-arc oxidation treatment device. The device comprises an electrolytic cell, a lifter and a cathode assembly. The cathode assembly comprises cathodes, a guard plate assembly and flexible sealing rubber plates. The cathodes are mounted in the guard plate assembly and located on the two sides of a titanium alloy component descending path. Upper guard plates, rear guard plates and lower guard plates close the upper surfaces, the lower surfaces and the side faces, back to the titanium alloy component descending path, of the cathodes. Hollowed-out front guard plates are fixed to the side faces, facing the titanium alloy component descending path, of the cathodes. Hollowed-out holes are uniformly formed in the hollowed-out front guard plates. The hollowed-out area is set according to the requirement for the electric field intensity. The flexible sealing rubber plates are fixed to the front ends of the two lower guard plates. When the lifter can drive a titanium alloy component to descend, the flexible sealing rubber plates are attached to the titanium alloy component to enable the oxidized titanium alloy component to be partially separated from the electric field. According to the titanium alloy component print-free micro-arc oxidation treatment device, sheet-like open type cathodes are changed into the cathodes with the closed lower portions, and oxidized titanium alloy is made to be separated from the electric field. Consequently, energy is saved, and erosion of titanium alloy can be effectively prevented.