106results about How to "No additional investment" patented technology

The invention provides an anti-counterfeiting method by utilizing an intelligent mobile phone to identify code saw-teeth. The method comprises the steps of amplifying and photographing saw-teeth of a product code and image-text margin; storing the photographed saw-tooth characteristic information into an anti-counterfeiting system database to be used as anti-counterfeiting characteristic filing information. The method is simple and easy to implement, and for the user product of the existing drug electronic supervision code, the amplified picture of the saw-teeth is stored when the product is under the automatic quality inspection and is used as the anti-counterfeiting characteristic filing information to be stored. By implementing the method, the equipment investment is not increased, the procedure is not increased, the cost is not increased, an effective anti-counterfeiting function of the product can be realized, and the bug of the digital anti-counterfeiting technology such as the telegram code anti-counterfeiting technology can be blocked up.

The invention provides an anti-counterfeiting method by utilizing an intelligent mobile phone to identify code saw-teeth. The method comprises the steps of amplifying and photographing saw-teeth of a product code and image-text margin; storing the photographed saw-tooth characteristic information into an anti-counterfeiting system database to be used as anti-counterfeiting characteristic filing information. The method is simple and easy to implement, and for the user product of the existing drug electronic supervision code, the amplified picture of the saw-teeth is stored when the product is under the automatic quality inspection and is used as the anti-counterfeiting characteristic filing information to be stored. By implementing the method, the equipment investment is not increased, the procedure is not increased, the cost is not increased, an effective anti-counterfeiting function of the product can be realized, and the bug of the digital anti-counterfeiting technology such as the telegram code anti-counterfeiting technology can be blocked up.

The invention provides a method for providing different quality of service (QoS) policies for data flow, mainly comprising: customizing ACL (access control list) template containing partial field information of each layer; using the ACL template to classify data flow and providing different QoS policies for the data flow. And it can implement flexible ACL type selection according to user requirements, implementing more fine grained data flow classification and providing corresponding different QoS policies for the data flow.

The invention relates to method for producing strengthen macromolecule polyethylene coil tube, which uses at least one layer of macromolecule polyethylene section material as coil material alternatively or irregularly arranged, and nearby side walls are fused to connected or adhered by fused material, to be screwed to form tube wall. The coil material is drawn to direct the molecule longitudinally. The macromolecule polyethylene base material is added with strength material and / or flameproof material and / or static resistance composed. The fusing connecting material is plastic polymer or added with strength material and / or flameproof material and / or static resistance, to form plastic fused material. The strength material is distributed in the coil material and / or fusing connecting material, directionally distributed along the screw of high-strength coil tube. The invention has high strength, flameproof property and static resistance.

The invention provides a dynamic control method of a network card consumption and connection mode which belongs to the power saving technique, and a device thereof. The method includes: monitoring data transmitting state of network in real-time, obtaining statistic value of data transmitting state in existing or scheduled time period; obtaining an object connecting mode matched with existing data transmitting, switching the network connecting mode into the object connecting mode. In an embodiment, network connection is not forced in certain connection mode, realizes dynamic changing connecting mode according with load assignment by monitoring data transmitting state of network and comparing with switch condition, can process dynamic switch among various mode, increases utilization rate of transmitting band width and realizes optimizing dynamic match of band width / energy consumption.

The invention provides a traction power supply system resonance suppression method and device based on an adaptive notch filter. By adding the adaptive notch filter in a locomotive network-side rectifier control method, a control instruction at oscillation frequency is allowed to be attenuated greatly, and thus generation of system resonance is suppressed through control ability of a locomotive itself; and under the condition of not increasing extra investment, safe and stable operation of a power supply system is ensured. Through the adaptive notch filter, a low-frequency resonant component in a grid-connected current is extracted and multiplied by an appropriate proportion coefficient for attenuation, and then, a component, obtained after low-frequency resonance attenuation in the grid-connected current, is subtracted from a grid-connected instruction current obtained by a DC voltage regulator, so that effects of stabilizing the grid-connected current and voltage and suppressing oscillation are achieved, suppression effect is good, hardware cost is not increased, and no extra investment is caused.

The present invention relates to bacterium resisting type high water absorption resin and a preparation method thereof. The resin is a functional polymer material prepared by redox initiation system water solution polymerization method, the resin has a long chain containing allyl structures, a side chain containing carboxylic acid groups and carboxylic acid sodium, and an inner-crosslinking porous network structure, and the internal or external of particles contains a solubilizing quaternary ammonium salt positive ion monomer, an oxidizing agent is sodium persulfate and ammonium persulfate, a reducing agent is sodium sulfite or sodium bisulfite, and a crosslinking agent is N, N '-methylene bis acrylamide or polyethylene glycol diacrylate. The prepared high water absorbent resin has excellent water absorption and water retention properties, high liquid passing performance and high liquid absorption speed, most prominently has good antibacterial properties, and is applicable to the production of adult diapers, sanitary napkins, baby diapers and other water absorption hygiene materials.

The present invention discloses a self-synchronization longitudinal current differential protection method suitable for a power transmission line. The method includes the following steps that: fault condition detection and fault time point extraction are realized according to the fault features of the line; with the fault time points of two ends of the protected line adopted as time reference, current data are synchronized, and therefore, excellent effects can be realized in the vicinity of a zero crossing point; and according to the influence of the reflection and reflection process of traveling waves, noise interference and the like, seven consecutive sampling points are detected, and it is confirmed that a fault occurs when at least four points change suddenly, and therefore, the reliability of protection and the precision of the time point of the fault are both guaranteed. The method of the invention does not depend on synchronous clocks and does not need to adopt extra equipment; and the method fully utilizes the fault features to realize the data synchronization, thereby reducing the transmission of time information. The method has the advantages of small communication traffic, high channel utilization efficiency, and the like, and can tolerate the influence of channel delay, sampling delay and the like.

The invention provides a bicrystal structure anticorrosion hard alloy and a preparation method thereof. The hard alloy is prepared by the following steps: taking hard tungsten carbide (WC) and binding phase nickel (N) as the matrix, and then subjecting the matrix to steps of blending, ball-milling, pressing, and sintering so as to obtain the hard alloy; wherein the tungsten carbide (WC) is composed of coarse particles and fine particles, and the weight ratio of the coarse WC particles to the fine WC particles is 7:3. The preparation method has the advantages of simple technology and low cost, and the prepared bicrystal structure anticorrosion hard alloy has the advantages of wear resistance, impact resistance, corrosion resistance, good comprehensive property, and suitability for being applied to fields such as petroleum exploitation, water treatment, and the like.

The invention discloses a method and a system for automatically generating decoration budget price from CAD design drawings. The method comprises the steps: step 1, analyzing CAD drawing documents; step 2, analyzing and judging structures; step 3, analyzing and judging areas; step 4, giving the budget price. The system comprises client equipment, a background data collection and processing equipment and a budget price template library; the client equipment, the background data collection and processing equipment and the budget price template library can transmit and read data through the Internet. The method and the system disclosed by the invention are very intelligent; manual intervention is not needed, so that manpower cost can be greatly reduced; the method and the system are capable of helping a decoration and design company to accelerate working procedures; operation cost is reduced, and moreover, professional demand on giving the decoration budget is also reduced; the method and the system are applicable for house owners to take quotation for reference and rationally arrange decoration methods and has very wide purpose.

The invention provides a method for preparing a foamed aluminum composite material, relates to the manufacturing of alloy with open or closed pores, and specifically relates to a method for compounding dispersed embedded manganese particles and closed-pore foamed alumium. The method comprises the following steps of: smelting commercially pure alumium into alumium melt and preserving heat, tackifying the alumium melt, adding manganese particles, foaming the alumium melt with manganese and preserving heat, cooling in air so that the foamed alumium is solidified and formed, and then cooling by wind, thereby obtaining the closed-pore foamed alumium composite material high in compression strength, and high in porosity and ductile fracture finally. The method provided by the invention overcomes the shortcomings of low compression strength of the commercially pure alumium-based foamed alumium composite material prepared by the prior art and easy brittle fracture in the compression process.

The invention discloses a coagulating agent for coking wastewater treatment and a process for applying the same. The coagulating agent for coking wastewater treatment is compounded by using ferrous sulfate, aluminium sulfate, ferric chloride, polysilicate and zeolite powder as raw materials; and the coagulating agent comprises the following raw materials in percentage by mass: 30 to 70 percent of the ferrous sulfate, 20 to 60 percent of the aluminium sulfate, 3 to 10 percent of the ferric chloride, 1 to 5 percent of the polysilicate and 1 to 5 percent of the zeolite powder. The application process comprises that: in a coagulating treatment stage after coking wastewater is subjected to A / O biological treatment, the PH value of the coking wastewater subjected to A / O biological treatment is regulated to be between 6 and 9; and the coagulating agent for coking wastewater treatment is added into the coking wastewater for coagulation treatment so that the final concentration of the coagulating agent for coking wastewater treatment in the coking wastewater is between 900 and 1,500 mg / L. Compared with the other coagulating agents, the coagulating agent has high efficiency, economization and excellent coagulating effect; and the application process is simple and has low investment cost.

The invention relates to a method for positioning a stator single-phase grounding fault of a large salient-pole generator. The method comprises the steps of a, measuring voltages of three phases and zero sequence voltage of a fault generator; b, comparing the amplitude of the voltages of the three phases, and judging the phase with the lowest voltage to be a fault phase; c, calculating the potential of the fault phase by using the voltages of the three phases of the generator; d, calculating the abrupt change amount of the zero sequence voltage, and calculating a phase angle between the abrupt change amount of the zero sequence voltage and the potential of the fault phase; e, calculating grounding resistance of a fault point; and f, determining the position of the fault point by using the grounding resistance of the fault point and the abrupt change amount of the zero sequence voltage. According to the invention, the grounding resistance of the fault point is calculated by using phase characteristics of the zero sequence voltage, and thus the position of the fault point is determined. The method can realize accurate positioning for a stator single-phase grounding fault of the large salient-pole generator in various neutral point grounding modes, and reliable reference information can be provided for fast maintenance for the fault. In addition, the method is also applicable to units which are not equipped with injection type protection, the equipment investment is not required to be increased, and the application range is wide.

The invention provides a preparation method of a high-solid content catalytic cracking catalyst. The method comprises the following steps: (1) mixing pseudo-boehmite, a binder and water and stirring evenly; (2) adding a soluble salt of which an anion is selected from Cl<->, NO3<->, ClO4<->, CH3COO<-> or HCOO<->, stirring evenly and standing; (3) adding an acid to the slurry obtained in the step (2), stirring and adding the acid in multiple times; and (4) adding a molecular sieve and the clay to the slurry obtained in the step (3), pulping and mixing evenly to prepare catalyst slurry, carrying out spray drying, solidification roasting, water adding and stirring, filtering and drying to prepare the high-solid content FCC catalyst. In the process of preparing the high-solid content catalyst by adopting the preparation method, the peptization speed is controllable and the mobility of the slurry is good; and heating and warming are not needed in the peptization process and a hydrochloric acid is replaced with other acids in the acidifying peptization process, so that the damage of a hydrochloric acid gas to the molecular sieve in the catalyst roasting process is avoided and the activity of the catalyst is improved.

The present invention discloses an aviation kerosene production method, which comprises that: (1) in the presence of hydrogen, raw material oil sequentially passes through a hydrorefining zone and a hydrocracking zone so as to be subjected to reactions to obtain a hydrocracking effluent; (2) the hydrocracked effluent is sequentially subjected to gas-liquid separation and fractionation to obtain a light naphtha distillate, a heavy naphtha distillate, a diesel oil distillate, a tail oil distillate and a kerosene distillate; and (3) at least the partial kerosene distillate is introduced into the post-refining catalyst bed layer of the hydrocracking zone so as to be used for recycling, wherein the distillation range of the kerosene distillate is 145-275 DEG C. According to the present invention, the method is simple, the high-quality aviation kerosene can be produced, and the method is especially suitable for the medium pressure hydrocracking process.

The invention relates to a nitrogen making system for a ship. The nitrogen making system comprises a compressor, a nitrogen making machine and / or a nitrogen buffer tank as well as a flow pressure regulating device which are sequentially connected through pipelines, wherein the compressor comprises at least one compression unit and is used for providing compressed air; the nitrogen making machine comprises at least two nitrogen making units and is used for making nitrogen; the nitrogen buffer tank is used for storing and buffering the nitrogen; the flow pressure regulating device is used for regulating flow and pressure. Compared with a conventional nitrogen making system, the nitrogen making system is not equipped with an air dryer, an air buffer tank or a nitrogen buffer tank and can output the small-flow and high-pressure nitrogen, and the pressure of the nitrogen is higher than the highest output pressure of an air compressor. With the adoption of the means, the structure of the nitrogen making system in the prior art is simplified, device operation and nitrogen yield cannot be influenced, and device investment and energy are saved.

The invention discloses a new hard alloy material and a preparation method thereof. The hard alloy is prepared from the following components in percentage by weight: 9.0-10.0% of Ni powder, 0.8-1.2% of Cr powder, 0.2-0.3% of Cr3C2 powder and the balance of WC (wolfram carbide) powder. By adopting the proportional hard alloy mixture and the compound addition mode of Cr and Cr3C2, the carburization and / or decarburization defect of the product can be improved, thereby enhancing the corrosion resistance of the binding phase Ni and the hard phase WC, and refining the alloy grains. The hardness, wear resistance and corrosion resistance of the alloy are enhanced. The hard alloy product prepared by the method disclosed by the invention can satisfy the requirements for long-term water flow erosion endurability and low metallic element precipitation amount.

The invention discloses a method for suppressing vehicle network low-frequency oscillation and a system thereof. The method comprises the steps that a network side voltage instantaneous value, a network side current instantaneous value, DC side output voltage, DC side output current, a DC side output voltage given value, a network side filtering inductance value and a network side equivalent resistance value are acquired; a first initial modulation signal is obtained according to the network side voltage instantaneous value, the DC side output voltage, the DC side output voltage given value, the network side filtering inductance value and the network side equivalent resistance value; a second initial modulation signal is obtained according to the network side current instantaneous value, the resistance value of a preset virtual resistor and the network side voltage phase obtained according to the network side voltage instantaneous value; and difference processing is performed on the first initial modulation signal and the second initial modulation signal so that a difference value is obtained, and the difference value acts as an output PWM signal to the modulation signal of the PWM generator of a network side rectifier. The low-frequency oscillation of the vehicle network system can be effectively suppressed so that the stability of the vehicle network system can be enhanced without increasing hardware cost.

The invention discloses Fusarium fujikuroi GA-251 and applications thereof, wherein the Fusarium fujikuroi GA-251 is a Gibberella fujikuroia mutant strain and has high yield of gibberellin GA3. The Fusarium fujikuroi GA-251 is preserved in China Center for Type Culture Collection, wherein the address is Wuhan University, Wuhan, China, the postal code is 430072, the preservation number is CCTCC NO:M 2019201, the preservation date is March 25th, 2019. The strain is obtained by carrying out radiation composite mutagenesis on protoplasts through lithium chloride and cobalt 60, and gibberellin GA3production of the strain is improved by 20%. The method has the advantages of high titer and easy extraction of the final product, and overcomes the defects of low fermentation titer and high cost oforiginal processes.

A disclosed sesame flavor liquor production technology comprises: mixing yellow wine lees, liquor starter, bacterial starter, high-temperature massive raw starter and a flavor-producing yeast according to a ratio, stirring uniformly, stacking to culture bacterium, and forming a special yeast by secondary starter propagation, then mixing with sesame-flavor grain lees according to a ratio, stirring uniformly, wetting the materials at a high temperature, stacking at a high temperature, fermenting at a high temperature, and making liquor flow out at a high temperature to obtain the sesame-flavor liquor which is abundant in nutrition, unique in style, fine and smooth, mellow and typical. The technology is relatively simple, the quality is easy to control, and for manufacturers producing the sesame-flavor liquor, no equipment investment needs to be increased, while the production benefit is increased, and the added value of yellow wine lees is improved.

The invention relates to a method for determining and maintaining the defect of a servo valve. In the method, the defect type is determined according to the static characteristic curve test result of the servo valve or the roller gap change condition of a rolling mill; the displacement of a valve plug is determined according to the hydraulic output power change of the servo valve, and the abrasion loss of a valve sleeve and the valve plug is determined according to the numerical value fluctuation degree of an internal leakage curve; fit clearance is reduced by improving the assembly accuracy of the valve plug and the valve sleeve; and the electrical zero of the servo valve is adjusted, and the relative position of a valve core and the valve sleeve is adjusted, so that the internal leakageof the servo valve and the abrasion of the valve core and the valve sleeve are reduced, the service life of the servo valve is prolonged, the reserve of spare parts and cost are reduced, and the thickness control accuracy of a steel plate and the qualification rate of a product are improved.

The invention discloses a large-span high-side-wall underground space building and an excavation supporting method thereof so as to solve the problems of large heading face, complex construction process, long construction period, inadaptability with deformation characteristics of soft and weak strata and high excavation supporting expense in a conventional underground space building. The large-span high-side-wall underground space building comprises an underground space building body, wherein a plurality of boundary line pre-anchoring holes are formed in the boundary line of the side wall of the underground space building body; a plurality of outer boundary line pre-anchoring holes are formed in the outer side of the boundary line of the side wall of the underground space building body; the boundary line pre-anchoring holes are communicated with the outer boundary line pre-anchoring holes through corresponding through pre-anchoring holes; through pre-stressed anchor rods or cables are arranged in the through pre-anchoring holes. According to the invention, the large-span high-side-wall underground space building is excavated by anchoring and excavating the soft and weak strata according to the prior art based on the characteristic that small holes excavated in the soft and weak strata are easily formed, the excavation supporting process is simple, and the building is stable.

The invention discloses a saw tooth code anti-counterfeiting method. The saw tooth code anti-counterfeiting method comprises the following steps: printing codes or / and images and texts on an object to be printed by utilizing a printing machine, and forming individualized saw tooth edges at the edges of the codes or / and the images and texts; photographing and acquiring the individualized saw tooth edges of the codes or / and the images and texts; storing characteristic information of the photographed and acquired individualized saw tooth edges and coding information into a computer anti-counterfeiting inquiry system database accessed into the Internet and taking the information as anti-counterfeiting characteristic filing information for distinguishing the true from the false through checking by the public. According to the saw tooth code anti-counterfeiting method disclosed by the invention, the edges of the codes or / and the images and texts of a product are slightly deformed and are prepared into the individualized saw tooth edges; only pictures of the saw tooth edges are conveniently preserved when a product is automatically checked, and the pictures are used as the anti-counterfeiting characteristic filing information and are stored in the database, so that the investment is hardly increased, procedures are not increased and the cost is not increased; however, an anti-counterfeiting function is given to the product; the vulnerability that a thieve in the family is difficult to find of digital anti-counterfeiting technologies including electronic code counterfeiting prevention and the like is prevented.

The invention discloses a method for improving the dispersity of insoluble sulfur (IS), which comprises the following steps of: firstly, crushing a solidified and dried IS-60 blocky material into particles in a boulder crusher; and secondly, crushing the particles into powder with the particle size of 120 to 150 mu m in a micro powder crusher, wherein in the micro powder crushing process, the feed rate is 0.95 to 1.05 t / h, and the grading wheel speed is 140 to 180 r / min. The method improves the conventional crushing process, performs adjustment and optimized matching on the feed rate and the grading wheel speed, controls the IS particle size to be 120 to 150 mu m, breaks through the traditional mistaken idea that the particle size of less than 150 mum is qualified, and ensures that the prepared IS powder has no electrostatic accumulation during production, the dispersity is good, and the product is favorable for well-known tire companies; besides, the method is simple and convenient to operate, needs no investment increase, and is suitable for industrial production.

The technological process of desulfurizing coking benzene to co-produce refined benzene and nitro benzene includes the following steps: adding (68-80) % concentration sulfuric acid solution, nitric acid and coking benzene in the volume ratio of (1-5) to (0.01-1.1) to 1 into a nitrifying reactor and continuous nitrification at 5-75 deg.c; separating the resultant in a separator before neutralizing and water washing; rectifying in a rectifying tower with top temperature 50-80 deg.c and top pressure of 0.05-0.1 MPa to produce nitro benzene in the tower bottom; desulfurizing the mixture of benzene and CS2 from the top of the rectifying tower in a desulfurizing tower with top temperature of 35-75 deg.c to produce benzene in the tower bottom while eliminating CS2 from the top; and other steps. The process has less benzene loss and high economic utility.

The invention overcomes the defect that a gold ore with different properties and difficult to deal with can not be treated by the same system through a traditional roasting method, and provides a switching method for a first-stage peroxide-roasting at a high temperature and a second-stage underoxide-roasting at a low temperature and equipment thereof, thus the second-stage roasting system with functions of the first-stage furnace roasting and the second-stage furnace roasting at the same time is realized, and a precedent for the industry is created. The problem that different roasting systems are additionally built according to the property of the gold ore difficult to deal with is thoroughly solved, the gold ore resource with different properties can be comprehensively recycled while the investment on main equipment and workshops are not needed to add, and technical supports are provided for survival and development of enterprises and continuous development of the gold industry.

An olefinic polymerization reactor comprises a polymerization kettle body, wherein a stirring device and an air distributing device are arranged in the polymerization kettle body; and the air distributing device comprises a plurality of air inlet pipes which are uniformly distributed in the axial direction. The olefinic polymerization reactor is characterized in that a divider is also arranged in the polymerization kettle body and is used for dividing the area in the polymerization kettle body into a first area in the divider and a second area between the divider and the polymerization kettle body; and the temperature of the first area is different from that of the second area. The olefinic polymerization reactor provided by the invention has the advantages that multi-temperature-area reaction is realized through the single reactor, the process is simple and the operation is convenient; and obtained polyolefin has wider molecular weight distribution and favorable performance.

The invention discloses an easy-to-draw tire cord steel coil rod and a production method. According to the tire cord steel coil rod and the method, rough drawing speed of the tire cord steel coil rodis 8-10 m / s, intermediate drawing speed is 18-22 m / s, wet drawing speed is 18-20 m / s, the wire breakage rate is less than or equal to 1 time / 100 t, the quality of molten iron entering a furnace and the quality of scrap steel are strictly controlled, the superheat degree of the molten steel, the continuous casting cooling strength, the heavy-pressure downward pressing amount, the grinding process and the high-speed wire rod rolling cooling system are set to be reasonable, the coil rod network cementite is less than or equal to 1.0 grade, the sorbitizing rate is greater than or equal to 95%, theproeutectoid ferrite is less than 0.5%, the intensity fluctuation range is less than or equal to 15 MPa, the surface defect depth is less than or equal to 0.05 mm, and the defect ratio is less than or equal to 0.8%.

The invention relates to a manufacturing technology of a japonica rice wine. The manufacturing technology of the japonica rice wine comprises the following steps: (1) soaking rice; (2) cooking rice, and cooling the rice; (3) dosing materials for the first time for fermentation; (4) dosing materials for the second time for fermentation; (5) implementing post-fermentation; (6) squeezing, boiling wine, and filling the wine in jars. In the manufacturing technology of the japonica rice wine, the rancidity of the fermented mash is prevented effectively by utilizing an active dry yeast and a twice-dosing method. A quick brewing yeast is replaced by the active dry yeast for the fermentation, thereby avoiding bacteria contaminations caused by the brewing yeast. The twice-dosing method is employed; all the yeasts are added during the first dosing, thus the inoculum size is increased by comparing to a once-dosing method. The inoculum size is up to 1.4-1.6%o. Accordingly, the yeasts are superior in numbers. The yeasts are provided with new nutrition during the second dosing, thereby expanding the cultivation effect, generating more new yeast cells, preventing the yeasts from aging, and keeping a strong fermenting ability of the yeasts. Accordingly, the growth of infectious microbes can be inhibited effectively.

The invention discloses a preparation method of a polyolefin pipe with high strength and high oxygen barrier properties. The preparation method comprises the steps of uniformly blending 100 parts of a polyolefin basal body and 1 to 60 parts of fiber-forming-phase resin, placing the mixture into a double-screw extruder, and extruding the mixture in a rotating extrusion mode at the temperature of a melting section of 180 to 280 DEG C and the temperature of an extrusion die of 170 to 280 DEG C, wherein the ratio of the diameter of the extrusion die to the diameter of a sizing sleeve is 1.25 to 4, and the ratio of the extrusion speed to the traction speed is 20 to 200 rpm:0.2 to 6.5 m / min in the stretching molding process. The annular tensile strength of the prepared pipe is improved by 7.0 to 69 percent compared with that of a traditional extruded pipe, and the oxygen permeability of the prepared pipe is reduced by 7 to 47 percent compared with that of the traditional extruded pipe. Since a melt convergence traction-cooling sizing way is adopted on the basis of the prior art, a fiber forming phase can be deformed, converged and formed in situ to form the fiber inside the pipe, the microfiber with the corresponding length-diameter ratio and content can be obtained, so that the annular tensile strength and the oxygen barrier property of the pipe can be simultaneously greatly improved.