51results about How to "Eliminate adverse effects" patented technology

The invention provides a method for screening toxic substances in a sample by using solid phase support liquid-liquid extraction-GC MC. The method comprises the following steps: extracting the sample by using a mixed solution containing a water-soluble organic solvent and deionized water, centrifuging an extracting solution after extraction, collecting a supernatant and removing the organic solvent in the supernatant, and preparing a sample liquid; adding the sample liquid into an activated solid phase support liquid-liquid extraction column, performing standing, performing eluting by using an eluate, and collecting the eluate; carrying out a chromatogram-mass spectrometry of the eluate. According to the invention, different toxic substances of a plurality of structures in a sample can be rapidly and effectively detected, especially screening of more than 150 kinds of toxic substances can be realized by single determination with high detection efficiency; the method provided by the invention is especially suitable for fields such as forensic science and has a good praticical value.

The invention relates to a urea injection system by adopting a gas pressure source. The system is characterized by comprising a urea jar, a filter, a urea nozzle, a pressure sensor, a temperature sensor and an electric control unit, wherein the system comprises a gas pressure source and a pressure regulating stabilizer which are connected with the main pipeline of the system; the urea solution for injection is pressurized by utilizing the stable gas pressure; and an electric urea pump is not arranged in the system. The system provided by the invention has the advantages of simple structure, stable pressure and high injection metering accuracy.

The invention provides a self-learning method and device of clutch torque characteristics of a double-clutch automatic gearbox. The method comprises the steps that when a clutch in the double-clutch automatic gearbox starts to work and is in a slipping friction state, the target engine rotating speed and the target engine torque are obtained, and the target clutch torque is computed according to the target engine rotating speed and the target engine torque; the observation clutch torque is computed according to the target engine rotating speed, the target engine torque and the target clutch torque; a first target clutch position is computed according to the clutch temperature, the target clutch torque and a preset weight; and the preset weight is modified and updated according to the first target clutch position and the current clutch position. According to the method, the relationship between the clutch transmission torque and the position and between the clutch transmission torque and the temperature can be learned in real time in the gear shifting process of the automatic gearbox, and adverse influence to gearbox control due to the changes of the clutch torque characteristics can be eliminated.

The invention discloses a power system sub- / super-synchronous oscillation wide-area monitoring method and a power system sub- / super-synchronous oscillation wide-area monitoring system. The method comprises the following steps: dividing a target grid into multiple partitions, and setting monitoring nodes for the multiple partitions respectively; acquiring the sub- / super-synchronous voltages and sub- / super-synchronous currents of all the monitoring nodes; carrying out synchronous processing and synchronous state estimation on the sub- / super-synchronous voltages and sub- / super-synchronous currents of all the monitoring nodes to get the sub- / super-synchronous oscillation condition of the target grid; and carrying out display according to the sub- / super-synchronous oscillation condition of the target grid, and judging whether there is a need to issue a warning for the sub- / super-synchronous oscillation condition of the target grid according to a preset warning rule. The method and the system have the advantage that the method and the system can help dispatching personnel to know the real-time operation situation of the grid, find sub- / super-synchronous oscillation in time and take corresponding measures to quickly eliminate the adverse impact of sub- / super-synchronous oscillation on the system, so as to guarantee the stable operation of the power system.

The present invention relates to one kind of capacitor coupled atmospheric pressure glow discharge plasma generator, and features that the plasma generator consists of power supply, electrodes with serially connected coupling capacitor or with serially connected coupling capacitor, resistor and inductor, matching network between the power supply and the electrodes to stabilize and control discharge, and work medium between electrodes. Under the action of power supply, the work medium between electrodes discharges and under the regulation of the matching network and the coupling elements, atmospheric pressure glow discharge plasma is generated. The present invention is used in plasma physics and chemistry, such as material processing and preparation, harmful gas purification, ozone generator and other fields.

The invention relates to a silicon carbide linear temperature sensor, a temperature measuring method thereof and a manufacturing method thereof and belongs to the technical field of semiconductor devices. The silicon carbide linear temperature sensor comprises a P well at the top layer of a silicon carbide N-epitaxial layer, an N well with a shallower central junction depth at the top of the P well, an N-type silicon carbide ohmic contact region at the center of the N well, an Ohmic contact electrode at the upper surface of the N-type silicon carbide ohmic contact region, N-type Schottky contact electrodes at two ends of the N well and a passivation layer at the surface of a device. According to the silicon carbide linear temperature sensor, the temperature measuring method and the manufacturing method, a lateral design is adopted to obtain the silicon carbide temperature sensor based on double Schottky diode structures, on one hand, the influence of reverse saturation current on the linearity of the sensor can be eliminated, the linearity is improved, on the other hand, a linear dependence relation between diffusion resistance Rs and temperature is introduced, and the sensitivityof the device is improved. At the same time, the device structure provided by the invention is a lateral structure, compared with an existing longitudinal structure, the structure of the invention iseasy to integrate, due to the isolation effect of the P well, the crosstalk between sensor main devices can be reduced, and the feasibility of integration with N-type epitaxial power devices is increased.

The invention discloses a watermelon beer brewing process .Improvement is performed based on a common beer brewing process, freshly squeezed watermelon juice, common boiled malt juice for brewing and hops are prepared into fermentation raw material liquid, and healthy watermelon beer having a fresh and cool taste is made through fermentation of brewer's yeast after sterilization .The watermelon beer brewing process utilizes carbohydrates in watermelons in a fermentation mode, eliminates the higher adverse effect of the carbohydrates of the watermelons from the perspective of health, retains a fresh scent of the watermelons from the perspective of flavor, not only enriches the types of beer, also reduces the waste of the watermelons in summer and improves the added value of the watermelons.

The invention relates to a web page safe releasing system with preventing from tamper being build on bottom layer of operate system. The system consists of first and second stages of monitoring ends.The first stage of monitoring end includes some web page releasing servers. The second stage of monitoring end includes dispatching server or add-ons inspecting server and releasing catalog inspection module. There is an anti-tampering module for web page document to be released on bottom layer of operate system of the web page releasing servers. The anti-tampering module takes over read-write operation completely. There is a protocol module for uploading the releasing document between first and second stage of monitoring ends. The uploading protocol module possesses functions of carrying on the sign and issue of normal documents; preventing document in advance from tampering; so as to stop unprofitable influence as well as reduce cost and time needed for system to be recovered.

The invention discloses a wind power generating device, a tower tube and a method for restraining the tower shadow effect of the tower tube. The tower tube is provided with suction through holes running through the inner side and the outer side of the circumferential wall of the tower tube and distributed in the circumferential direction of the tower tube. The tower tube is further provided with a suction device which can suck the suction through holes from outside to inside. By means of the tower tube and the method, when the suction through holes of the windward side are sucked, the adverse effects of the tower shadow effect can be weakened or eliminated, the service life of a pitch bearing can be prolonged, noise can be reduced, and the wind energy utilization coefficient can be improved. When the suction through holes in the streaming disengagement direction are sucked, the vortex-induced vibration can be restrained; meanwhile, the suction force can be freely adjusted according to actual conditions during sucking, and higher flexibility is achieved; when the suction gas flow is discharged to the inside, the effect of heat exchange cooling and the effect of preventing external rainwater, dust and the like from entering a wind deflector or a hub can also be achieved.

The invention discloses a positioning laser anti-fake complex film and a production method thereof. The complex film is provided with a printing bearing layer which consists of a printing area and a gluing area, a printing ink layer is printed on the printing area, a first gluing layer is coated on the gluing area and adhered with a laser anti-fake layer, and a second gluing layer and a protective layer are arranged on the printing ink layer and the laser anti-fake layer. The production method of the positioning laser anti-fake complex film includes the steps of: 1) preparing a laser transfer film and the printing bearing layer; 2) printing the printing ink layer on the printing bearing layer; 3) forming the first gluing layer on the gluing area; 4) compounding the printing bearing layer and the laser transfer film by hot pressing; 5) carrying out heat-preservation-type curing treatment; 6) peeling off operation, i.e., peeling off the base material in the laser transfer film; 7) coating a layer of gulewater on the blank of the complex film to form the second gluing layer; and 8) obtaining the finished product by compounding the blank of the complex film and the protective film by hot pressing. The product can effectively protect the laser anti-fake layer and prevent the falling off of the laser anti-fake layer, and the method has higher yield.

The invention discloses a shaft head extrusion forming system and method. The shaft head extrusion forming system comprises a hydraulic machine, an intermediate frequency heating furnace and a robot used for carrying, wherein a center CPU (Central Processing Unit) control unit of the robot receives information data from a man-machine interaction operation unit, a hydraulic machine control system and a heating furnace control system through a robot communication unit, and sends cooperation execution information to a robot hand group, the hydraulic machine control system and the heating furnace control system to perform a cooperation matching work after the information data is treated. A shaft head is extruded by adopting a hollow rod material of the shaft head extrusion forming system. By adopting automatic networking control, the shaft head extrusion forming system is energy-saving and emission-reducing, intelligent and efficient; meanwhile, a hollow rod material is integrally extruded and formed, the heating time is short, and the required pressing force is lower than that of a solid rod material, the hollow rod material can be pressed and formed once, thus the adverse effect of an oxidization skin is prevented, and the product quality is greatly improved.

The invention provides inner wall polishing operation remote control equipment suitable for a pipeline with a wide-range pipe diameter. The equipment comprises a remote control moving device, a remote manipulated polishing operation device, a locating device and a manipulating device, wherein the polishing operation device is arranged on the remote control moving device, the locating device is arranged on the polishing operation device or the remote control moving device, and the manipulating device is connected with the remote control moving device, the polishing operation device and the locating device respectively. According to the inner wall polishing operation remote control equipment, by utilizing a remote control technology, an operator can remotely control the polishing operation of the inner wall of the pipeline outside the pipeline by manipulating a control box and can monitor the operation process in real time, so that the efficiency of polishing operation is improved, and the labor intensity is reduced, furthermore, the polishing quality is greatly improved, and the polishing quality is guaranteed to meet relevant requirements.

A table top circular saw cutting machine provided, for example, with a table on which a material to be cut is placed and with a cutting machine body having a saw blade rotated by an electric motor may have a phenomenon in which a high-frequency electric current generated in the vicinity of the electric motor is amplified on the table side to become noise to peripheral equipment. The invention reduces the noise. A cutting machine is configured in such a manner that conduction of a high-frequency electric current is blocked by installing insulating members (16, 16) on a support shaft (15) for supporting the cutting machine body (20) so that the cutting machine body can be tilted in the vertical direction relative to a body support section (50) which is mainly composed of a table.

The invention provides a client realization method used for real time video supervision, comprising a video buffering step, a video receiving step, a video decompressing step and controlling command step; the video buffering step carries on the framing and buffering process for the received data packet in continuous frame buffer area and a frame line is formed in the buffer area; in the video receiving step, the control information in the data packet is analyzed and a frame number window algorithm is used for judging the validity of data packet; in the video decompressing step, according to the check window algorithm, a complete frame is obtained from the frame line for decoding and displaying; in the controlling command step, the operating information of users is received and telecontrol can be carried on for the monitor terminal according to the operation of users. The invention eliminates the network negative sequence and the adverse effect on image quality by the packet loss in maximum, on the condition of real time supervision; so the definition, fluency and resolving capability of images are improved, and when the situations of the network is bad, the image quality of client terminal and real-time can be both paid attention to.

The invention discloses a preparation method for a silver / nickel / graphite electric contact material. The preparation method comprises the steps as follows: 1, coating colloidal graphite with a layer of metal nickel by chemical plating; 2, further coating the colloidal graphite powder coated with the nickel by chemical plating with a layer of silver; 3, sintering and granulating a powder body with an Ag-Ni-C nuclear shell structure formed after coating by nitrogen protection to obtain an intermediate compound granule powder body; 4, sieving the obtained intermediate compound granule powder body; and 5, mixing the intermediate compound granule with pure silver powder, and reducing the content of the colloidal graphite to be the set value; and carrying out the conventional process of mixing the powder, pressing the powder body, sintering in nitrogen protection atmosphere, extruding and drawing to obtain the novel silver / nickel / graphite material with colloidal graphite granules distributed in a fiber shape in a local region, wherein the local region mainly comprises the metal nickel and a small amount of metal silver in addition to a colloidal graphite reinforced phase.

The invention provides a sludge treatment method and treatment system. The treatment method comprises the following steps: discharging sludge into a sludge storage pond, and adding an anti-corrosion modifier and evenly mixing for storage; exporting sludge and delivering sludge into an agitator, and adding an alkaline modifier, evenly mixing and then ageing to obtain a sludge derived cement raw material; entering a vertical bushing dispersing and grading and drying furnace for dispersing, grading and drying, sorting out small-particular materials and large-particular materials, performing further grinding to the large-particular materials, then repeatedly circulating dispersing, grading, drying and grinding processes until all sludge become small--particular materials; and delivering the small-particular materials into a cement kiln tail smoke chamber for incineration. The sludge treatment method and the treatment system effectively overcome the negative influence factor during cooperative treatment of sludge during production in a cement kiln, forcibly conduct anti-corrosion modification to the sludge, reasonably treat waste gas and moisture in sludge, effectively control various effective elements of sludge carried in the cement kiln, avoid the situations influencing the cement kiln, and realizes the harmless treatment of sludge.

The invention relates to an integrated solar heat collection power generation assembly, comprising a shell, a glass cover plate, a solar heat absorption plate and a heat exchange tube, wherein the glass cover plate is arranged on the top of the heat collection power generation assembly; the solar heat absorption plate and the heat exchange tube are both arranged below the glass cover plate; a heat insulation material is arranged between the solar heat absorption plate and the shell; and a plurality of solar photovoltaic components are transparently packaged below the glass cover plate at intervals and are connected through wires. The integrated solar heat collection power generation assembly can completely or partly replace a roof covering layer, thus reducing the cost of integral installation and use, and eliminating adverse effects on buildings due to the traditional solar photo-thermal system and photovoltaic system.

The invention discloses 3D (three-dimensional) display equipment and a display method. The display equipment comprises a display part and an actuator, wherein the display part comprises a plurality of light emitting units; the actuator comprises actuating units respectively coupled with corresponding light emitting units, and the actuating units are arrayed in parallel and ensure that the light emitting units face towards lookers and can extend and retract under the control of control signals, and space positions of the light emitting units are corresponding to a reference surface and meet the requirement of preset conditions; and the plurality of light emitting unit emit light according to a preset display parameter. By utilizing the display equipment and the display method, the 3D image of a displayed object can be truly realized, thereby eliminating adverse impacts brought by 3D display based on parallax. The display equipment can be used for article exhibits in shops or outdoor advertisements or other applications requiring the 3D display.

The invention discloses a sense amplifier comparison circuit. The sense amplifier comparison circuit comprises a memory unit circuit, clamp circuits comprising first and second clamp circuits, and first and second current conversion voltage circuits; a first current source generation circuit, wherein the output end of the first current source generation circuit is connected with the first clamp unit and the memory unit circuit; and a second current source generation circuit, wherein the output end of the second current source generation circuit is connected with the second clamp circuit and a reference unit circuit; the fist current conversion voltage circuit is connected between ground and the first clamp circuit, and the second current conversion voltage circuit is connected between the ground and the second clamp circuit; and one input end of a comparator is connected with a connection point between the first current conversion voltage circuit and the first clamp circuit, and the other input end of the comparator is connected with a connection point between the second current conversion voltage circuit and the second clamp circuit. The sense amplifier comparison circuit can be used under a low power supply voltage condition.

The invention discloses an installation tool for an air-ground communication component of an airplane wireless air-ground broadband system. The installation tool comprises a guide rail A (1), a guide rail B (2) and an air-ground communication component installation support (3), wherein the guide rail A (1) and the guide rail B (2) are installed at the bottom in a luggage carrier, and the air-ground communication component installation support (3) is installed on the guide rail A (1) and the guide rail B (2); the bottom of the air-ground communication component installation support (3) is also provided with a ventilation cavity channel (5), and an air outlet of a cooling fan (6) is communicated with the inner part of the ventilation cavity channel (5); and the bottom of an air-ground communication component installation groove (4) is provided with a wind outlet hole (7). The installation tool has the beneficial effects of convenience in installation and flexible installation position; and the cooling fan is also arranged, so that the installation tool can blow cooling air to the air-ground communication component installed in the air-ground communication component installation support, the equipment cooling is favored, and the bad influence generated by temperature increment in the operation process of the equipment in the prior art is eliminated.

The invention relates to a method for recycling potassium carbonate from an aluminum oxide production process. The method is characterized by comprising the steps that 1, a carbonation decomposition reaction is conducted on mother liquor or a stock solution decomposed through a Bayer process; 2 filtering is conducted; 3, aluminum hydroxide carbon points are washed and then sent to a flash vessel obtained after Bayer digestion for post densification digestion digestion, and a product serves either as aluminum hydroxide seeds of the decomposition procedure or as an aluminum hydroxide product; 4, carbonic acid mother liquor and aluminate hydrate wash liquor are subjected to preliminary vacuum evaporation and preliminary cooling crystallization; 5, preliminary vacuum evaporation mother liquor is subjected to secondary vacuum evaporation and secondary cooling crystallization; 6, generated sodium potassium carbonate double salt crystals are dissolved with the carbonic acid mother liquor and then sent to preliminary vacuum evaporation; 7, generated secondary vacuum evaporation mother liquor is subjected to third vacuum evaporation and third cooling crystallization; 8, obtained third vacuum evaporation mother liquor and secondary vacuum evaporation mother liquor are mixed and then subjected to third vacuum evaporation; 9, obtained potassium carbonate crystals are sintered, and the potassium carbonate is obtained. A potassium carbonate product obtained through the method is high in economic value, and adverse influences generated by K<+> accumulated in the aluminum oxide production process can be eliminated.

The invention discloses a rotary machine weak fault signal extraction method based on order analysis and sparse coding. The rotary machine weak fault signal extraction method comprises the following steps: firstly, transferring a constant rotating speed fault signal to an angle domain through order analysis; uniformly segmenting the angle domain signal, and training an angle domain displacement invariant dictionary by using displacement invariant sparse coding; further sparsely decomposing the variable speed angle domain fault signal containing strong noise by using a displacement invariant dictionary, and selecting a component with obvious impact characteristics according to a kurtosis criterion to reconstruct; and finally, extracting fault features through envelope spectrum analysis. Themethod can effectively eliminate the interference of the rotating speed and strong background noise, extracts the weak fault features under the variable rotating speed, and is high in flexibility andadaptability.

The invention relates to the technical field of aluminum alloy material research, and discloses a high-strength cast aluminum alloy for an automobile. The content of each element in a silicon-aluminumalloy is adjusted, and the adverse effect of the silicon element on the alloy is eliminated; moreover, the effects of the conditions such as temperature and pressure on the microstructure and mechanical properties of a casting are controlled by utilizing an extrusion casting process; in the casting process, macroscopic shrinkage cavities and microscopic shrinkage porosity are remarkably eliminated, and crystal grains are refined; in the heat treatment process, the mechanical properties of the casting are further enhanced, and the strength of the casting is remarkably improved; and the tensilestrength reaches 375-380 MPa, the elongation reaches 12.7-13.0%, and the hardness reaches 126-128 HB. According to the high-strength cast aluminum alloy for the automobile, the problems that shrinkage cavities and shrinkage porosity occur in the casting process of a high-silicon aluminum alloy, and the crystal grains are coarse in the prior art can be solved, parts with complex properties can bemanufactured, the surface quality of the parts is high, the process is simple and efficient, and the production cost is reduced.

The invention relates to the technical field of metal film processing, in particular to a metal film cooling and winding device. The invention aims at providing the metal film cooling and winding device, which is capable of performing cooling operation on a metal film and eliminating the adverse effect of temperature on the metal film winding, high in winding efficiency, wide in application rangeand high in practicability. The metal film cooling and winding device comprises a base, a carrying plate, supporting plates, positioning plates, a bidirectional motor and the like, wherein the carrying plate is fixedly arranged on one side surface of the base; the bidirectional motor is fixedly arranged on one side surface of the carrying plate; the two positioning plates are fixedly arranged on one side surface of the base; and the supporting plates are fixedly arranged on the two positioning plates respectively. According to the metal film cooling and winding device, through cooperative workof two blades and a fan drum, the newly-produced metal film with a certain stability can be subjected to cooling operation, the adhesion of the metal film during winding can be effectively prevented,the winding effect is good, and the efficiency is high.

The invention discloses a phosphogypsum wall brick, which comprises the following raw materials in parts by weight: 90-105 parts of phosphogypsum, 6-10 parts of carbide slag, 8-15 parts of hydraulic admixture, 5-8 parts of rough stone, 10-16 parts of stone powder, 0.5-2 parts of anhydrous sodium sulfate, 3-5 parts of water glass, 0.05-0.2 part of calcium formate, and 2-6 parts of calcium lignosulphonate. The wall brick has the characteristics of light weight, high strength, low water absorption, high softening coefficient and good freezing resistance, is suitable for a building load-bearing and spacing wall body. The invention also discloses a preparation method of the phosphogypsum wall brick. According to the method disclosed by the invention, large quantities of industrial waste residue phosphogypsum is effectively utilized, the building material resource comprehensive utilization of the phosphogypsum can be achieved; meanwhile, a phosphogypsum and carbide slag composite pelletizing technology is adopted harmful substances in the phosphogypsum raw material can be removed, and the softening coefficient and strength of a phosphogypsum product can be increased.

The invention discloses an optical induction device with anti-static elements. The optical induction device comprises a shell, at least one luminescent element, a shielding element, at least one anti-static element, and at least one optical induction element. The shell is internally provided with a blackbody condition space and comprises a luminescent chamber, a light-shielding chamber and at least one optical induction chamber. The luminescent element projects a light beam towards the luminescent chamber. The shielding element is movably limited in the light-shielding chamber, and generates a static power during the moving. The anti-static element is arranged in the light-shielding chamber so as to conduct and ground the static power. The optical induction element is arranged in the optical induction chamber and induces the light beam so as to transmit an induction signal.

The invention discloses an acrylate-based polydiacetylene thermochromic material and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing thephotoinitiator Irgacure 369, trimethylolpropane triacrylate (TMPTA) and 10,12-pentacosadiynoicacid acid (PCDA) in a dark environment to obtain an emulsion; and (2) irradiating the emulsion with LED light and ultraviolet light in sequence to obtain the acrylate-based polydiacetylene thermochromic material. The preparation method overcomes the problems that a traditional polydiacetylene thermal response composite material needs a volatile organic solvent, and the volatile organic solvent may have multiple adverse effects on the performance of the material and easily causes secondary pollution.

The invention provides a ship cooling system, The system comprises a cooling device, ship equipment and a heat storage heat exchanger; the cooling device comprises a cooler and a heat exchange loop, the heat exchange loop has a heat exchange inlet and a heat exchange outlet, the heat exchange inlet and the heat exchange outlet are communicated with the cooler; the ship equipment is arranged on the heat exchange loop and located between the heat exchange inlet and the heat exchange outlet; and the heat storage heat exchanger is arranged on the heat exchange loop and is close to the heat exchange outlet. The heat storage heat exchanger absorbs redundant heat when the system is in a high heat load state and discharges the heat when the system is in a low heat load state, so that the temperature fluctuation of cooling water is effectively inhibited, the adverse effect of the high-power fluctuation heat load of a single cooling loop on a central cooling system and other cooling loops can be eliminated, and the cooling efficiency is improved.

The invention belongs to the related technical field of casting of aluminum-lithium alloy, and discloses an aluminum-lithium alloy casting adopting a shell to inhibit interface reaction and a casting method of the aluminum-lithium alloy casting. The method comprises the following steps of (1) coating a surface layer coating on the surface of a three-dimensional model of the aluminum-lithium alloy casting to be manufactured to obtain a surface layer, wherein the component of the surface layer coating comprises an inhibitor, (2) after preparing a back layer on the surface layer, sequentially removing the three-dimensional model and roasting to obtain a shell, (3) preparing a graphite coating on the inner surface of the shell, (4) pouring aluminum-lithium alloy liquid into the shell, and then acquiring an aluminum-lithium alloy casting, wherein when the aluminum-lithium alloy liquid is in contact with the shell, the aluminum-lithium alloy liquid firstly reacts with an inhibitor in the surface coating to form a layer of lithiation thin film, and the lithiation thin film inhibits the reaction of the shell and the aluminum-lithium alloy liquid. The interface reaction of the aluminum-lithium alloy and the shell is weakened, and the performance of the aluminum-lithium alloy casting is improved.

The invention relates to a protection method for removing corrosion on the surface of an aluminum alloy. The protection method comprises a removal step of floating rust on corroded parts on the surface of the aluminum alloy, the removal step deep corrosion products on the surface of the aluminum alloy, an oxidation step on the surface of the aluminum alloy, and a protection step on the surface of the aluminum alloy after corrosion removing. According to the protection method, the corrosion products on the surface of the aluminum alloy are removed by adopting an aluminum alloy de-corrosion product paste, not only the corrosion products on the surface of the aluminum alloy can be quickly and effectively removed, but also the adverse effect of a chemical reagent on uncorroded parts on the surface of the aluminum alloy in the rust removing process is also eliminated; then the surface of the aluminum alloy is oxidized by adopting an aluminum alloy surface oxidation paste, so that a protective film with good binding force to an organic film layer and with a certain corrosion resistance is generated; and finally, the final purpose of protection is achieved by coating a corrosion inhibitor, an organic coating or the like.