31results about How to "Improve the performance of three defenses" patented technology

The invention provides a method for preparing a water, oil and stain repellent and easy-to-clean household fabric, and belongs to a method for preparing a household fabric. The method comprises the following steps: a, performing pretreatment to the household fabric serving as the raw material, and then cleaning out the household fabric; b, preparing finishing liquor, i.e., adding finishing agent, softening agent, cross-linking agent and penetrating agent into water during the preparation; and c, padding the finishing liquor, i.e., soaking and padding, preshrinking, and finally obtaining the water, oil and stain repellent and easy-to-clean household fabric. The method has the advantage that the easy cleaning property of the treated water, oil and stain repellent fabric stained with oil is enhanced; the treated water, oil and stain repellent and easy-to-clean fabric has high water, oil and stain repellent properties in air medium and shows relative hydrophilic and oleophilic properties in aqueous medium; the purpose of organically combining the oil and stain repellent properties with the easy-to-clean property is achieved, so that the oil stained on the fiber is easily removed in aqueous medium; and the method can be widely applicable to tablecloth, window curtains, kitchen cloth and the like.

The invention relates to the field of game equipment, aims to solve the technical problems in the prior art, and designs a multi-point touch sensing method and equipment, which are accurate in touch and high in image accuracy and can be used in various places. The method comprises the following steps that: a camera and an infrared transmitting device are arranged on backs of a panel and a display device, the infrared transmitting device projects infrared ray onto the panel, a strip-shaped touch belt is formed on the front of the panel; the panel can be transmitted by the infrared ray in a region of the touch belt, and the camera transmits an image on the touch belt on the same side of the infrared transmitting device to a host; a finger touches the region of the touch belt on the front of the panel for operation, and reflects the infrared ray passing through the touch belt; the infrared ray reflected by the finger forms a white point in the image shot by the camera, and the host realizes touch by analyzing the action of the white point; and the host displays action of a computer program corresponding to the touch action through the display device.

The invention provides a finishing process of waterproof, oil-proof and antifouling fabric, belongs to the technical field of textile, and solves the problem that an existing fabric finishing process is complex and cannot improve the waterproof performance, oil-proof performance and antifouling performance of fabric. The finishing process of the waterproof, oil-proof and antifouling fabric is characterized by including the steps of 1), dyeing; 2), performing first washing; 3), performing second washing; 4), performing third washing; 5), performing fourth washing; 6), performing hot rolling; 7), performing film coating; 8), napping. The finishing process has the advantages that the process is little in damage on the fabric, and the surface of the fabric is allowed to be smooth and soft and good in comfortableness; the hot rolling and the film coating can be performed at the same time, and the waterproof performance, oil-proof performance and antifouling performance of the fabric can be improved.

The invention provides a three-proofing treatment process method and belongs to the technical field of electronic device treatment. According to the combination treatment method, firstly, the outer surface of an aluminum alloy piece is subjected to chemical electric conduction oxidation, then spraying of primer, scrape coating of putty, and spraying of three-proofing enamel are conducted, and finally, varnish is sprayed to the outer surface of the aluminum alloy piece. The good grounding requirement of electronic products is met, meanwhile, the three-proofing performance of the aluminum alloypiece is greatly improved, and thus the environmental adaptability of the electronic products is improved so that the electronic products can reliably work under the severe environments such as dampness, heat, salt mist and mould; and the method is simple in process, convenient and quick to operate, low in cost, stable and reliable.

The invention discloses a preparation method of a three-proofing finishing agent for hard water. The three-proofing finishing agent for the hard water is an oil-in-water type high-molecular polymer emulsion, wherein the high-molecular polymer is prepared by emulsifying perfluoroalkylated (methyl) acrylate and (methyl) acrylate through a composite surfactant and then polymerizing by initiating of an initiator. The three-proofing finishing agent is generally that tap water or water from river is diluted to reach a certain concentration during the actual use in a printing and dyeing mill, and the tap water, in particular the water from the river, contains a certain amount of metal ions which influence the stability and the use effect of the three-proofing finishing agent. To solve the abovementioned problem, the three-proofing finishing agent is added with organic acid capable of chelating, the pH can be regulated, and the water quality can be improved, and as a result, the three-proofing finishing agent has a good three-proofing effect in the hard water, and the performance in the actual use is greatly improved.

The invention discloses a method for dissipating heat from LEDs with high overall structural strength, which comprises a heat dissipation box, the interior of the heat dissipation box is hollow, and the left and right ends of the heat dissipation box are open, and the left and right ends of the heat dissipation box are both clamped with clips. There are ventilation holes on the sides of the two blocks, and dust-proof nets are installed on the ventilation holes of the two blocks, and a through groove is opened on the lower surface of the cooling box, and the through groove is connected with the heat conduction plate, and the fan works so that the outside The air enters the heat dissipation box through the dust-proof net to dissipate heat from the radiator, which improves the heat dissipation of the LED tri-proof light with high overall structural strength. The dust-proof net removes dust from the air entering the heat dissipation box to prevent dust on the radiator Accumulation improves the stability of the radiator. When the temperature in the radiator box exceeds the set value, the bimetal sheet temperature control switch guides the fan to work. The structure is simple and the reliability is high. The reinforcement clip improves the overall structural strength of the radiator box .

A U-shaped VHF (very high frequency) antenna of an unmanned aerial vehicle comprises a U-shaped radiator. The radiator is sleeved in an insulating sheath, the radiator comprises a U-shaped radiator support, a radiator belt is wound on the radiator support at uniform pitches, a fixed seat is connected with one end of the radiator support, an antenna pedestal is connected with the other end of the radiator support, and the radiator belt is connected with a matcher in the antenna pedestal. The U-shaped VHF antenna of the unmanned aerial vehicle adopts a broadband impedance matching technique and an Advanced Design System2009 simulation optimization technique, the problem of antenna height is solved well, fine broadband impedance matching is achieved, and accordingly radiation efficiency of the antenna is effectively improved, antenna gain is enhanced, and the U-shaped VHF antenna of the unmanned aerial vehicle has the advantages of convenience in dismounting and mounting, destroy resistance and good three-proofing performance.

A general coded lock core comprises a steel disc, a steel disc spindle, a sawtooth disc, a driving angle iron clamp and a stopping angle iron clamp. The lock core is equivalent to a lock cylinder of a key lock or a coded lock with a one-digit code, the lock core has no practical significance when being used separately, a practical coded lock with extremely high safety can be manufactured with multiple lock cores equipped with some auxiliary components, and the number of the lock cores is the digit of the coded lock. The lock core realizes setting, input, storage and decoding unlocking of the code in a pure mechanical manner. The coded lock manufactured with the lock cores is simple and convenient in code setting, quick and easy to unlock, stable in performance and purely digital, the safety performance of the coded lock is improved in a leap-type manner when being compared with that of various coded locks sold in the market at present, and the coded lock is applicable to various security doors, boxes and cabinets; the lock core can also be used for manufacturing a coded padlock, so that a user can get rid of the burden of keys and feel the convenience in life. Once the lock core is put into production, enormous economic and social benefit will be produced certainly.

The invention discloses a wetting agent for three-proofing finishing and a preparation method thereof. The wetting agent comprises the following raw materials in parts by mass: 1-10 parts of a surfactant, 5-20 parts of a substance with the molecular formula of C6H5-O-R-OH, 5-10 parts of an environment-friendly solvent and 60-90 parts of water. A normal-temperature secondary mixing method is adopted for preparation, the reaction process is carried out at 60 DEG C, the reaction conditions are very mild, the decomposition phenomenon during reaction can be effectively reduced, in addition, the excellent dispersity and surface activity of the surfactant and the good dissolving and solubilizing assisting performance of the environment-friendly solvent are utilized respectively, the stability andreliability of the reaction are guaranteed, and the dissolving property and the dispersing property of the substance with the molecular formula of C6H5-O-R-OH in a mixed system are improved. According to the wetting agent for three-proofing finishing, the liquid carrying rate, the liquid carrying uniformity and the three-proofing effect of fabric with poor permeability during three-proofing finishing can be improved, and the performance of a three-proofing finishing agent cannot be affected.

The invention relates to a brazed sealed machine box having an internal support and used for an ocean environment. The brazed sealed machine box is composed of a front panel (1), a shell part (2), anupper cover plate (3) and a lower bottom plate (4). According to the vacuum brazed sealed machine box, a tool clamp does not need to be customized for welding, so that the production period is shortened, the production cost is reduced, and the product assembly process performance and the sealing performance required by the ocean environment can be met.

The invention relates to the technical field of fans, in particular to a separated type potting waterproof fan. Comprising a fan body and a control box, the fan body comprises a fan frame, a stator assembly and a fan assembly, a potting body is arranged in the center of the fan frame, and the fan assembly is rotationally connected with the potting body; the lower inner cavity of the potting body is an assembling cavity, and the upper inner cavity of the potting body is a filling cavity; the stator assembly is arranged in the assembling cavity in a penetrating mode and connected with the filling and sealing body in a matched mode, and the filling cavity is filled with sealing filler. A PCB (Printed Circuit Board) is arranged in the control box; a circuit on the stator assembly penetrates through the filling cavity so as to be electrically connected with the PCB; the waterproof fan is reasonable in structure, compliance detection is carried out after the fan assembly, the fan frame and the stator assembly are assembled, the sealing filler is injected into the filling cavity, the stator assembly is packaged in the potting body, electronic elements which are not resistant to low temperature are integrated in the control box, the waterproof fan can work in severe environments such as high temperature, low temperature and dust, and the service life of the waterproof fan is prolonged.

The invention provides a high-integration-level external three-proofing antenna structure. The high-integration-level external three-proofing antenna structure comprises a fixing structure. A side antenna structure is mounted on one side of the upper end of the fixing structure; the side antenna structure comprises a side signal plate and an inner signal lines, a side signal plate of the antennastructure is arranged on one side of the mounting fixing column; the side signal plate and the mounting fixing column are mutually fixed in a welding mode, a plurality of transverse open grooves i formed in the side signal plate. The inner signal lines are mounted in the formed open grooves, and the fixing structure and the collecting plate structure are mutually connected through an adjusting mechanism; the root portion of the collecting plate structure is connected to the fixed sealing structure in a hinged mode. The root of the inner extending structure is arranged on the fixed sealing structure in a sleeving mode, the tail end of the inner extending structure is fixedly connected to the inner wall of the collecting plate structure, and the side signal plate and the mounting fixing column are sealed through welding, so that the side signal plate can enhance the three-proofing effect on the interior, and signals cannot be affected.