1582results about How to "Strong novelty" patented technology

The invention discloses a medical appliance carrying apparatus which comprises a working table. A vertical slide rail is arranged on one side of the upper surface of the working table; an electric trolley is arranged on the vertical slide rail and provided with a mount on the upper surface; a circular groove is formed in the center of the upper surface of the mount; a rotating motor with an upward rotating end is arranged in the circular groove; the rotating end of the rotating motor is provided with a circular supporting plate matched with the circular groove; a first installation box is arranged on the upper surface of the circular supporting plate; a controller is arranged on the front surface of the working table; a mains supply interface is arranged on the back surface of the working table; a power terminal of the controller is connected with a mains supply interface via a conductor wire; an output end of the controller is connected with the electric trolley, the rotating motor, a hydraulic cylinder, an electric pusher and a micro linear motor via conductor wires respectively. The medical appliance carrying apparatus has the advantages of high carrying capacity, high carrying speed, capability of liberating manpower and improving work efficiency, small size, and high movability.

The invention discloses cyano phthalic diamide compounds, a preparation method thereof and use thereof as an agricultural chemical pesticide. The compounds are represented by a structural formula (1), wherein the substituent groups are defined in the description. The phthalic diamide compounds of the invention have wide spectrum pesticidal activities and are effective for epidoptera; particularly, the compounds have high activities for plutella xylostella, cotton bollworm, prodenia litura and the like, and a better effect can be achieved with a small dose of the phthalic diamide compounds.

The invention discloses a processing device for wood notches of furniture. The processing device comprises a workbench, wherein a rectangular groove is formed in the upper surface of the workbench; a group of circular grooves are formed in the surface on each of the opposite sides inside the rectangular groove; micro linear motors of which telescopic ends are horizontal are arranged in the circular grooves; top plates matched with the circular grooves are arranged at the telescopic ends of the micro linear motors; a controller is arranged on the surface of one side of the workbench; a PLC programming system is arranged inside the controller; a mains supply interface is arranged on one side of the controller; a supply terminal of the controller is connected with the controller through a conducting wire; and an input end of the controller is connected with a linear motor, an electric push rod, an electric trolley, a No.2 linear motor, the PLC programming system, a No.3 linear motor and a rotating motor through a conducting wire. The processing device has the beneficial effects that mechanical semi-automatic processing treatment is adopted, the working efficiency is high, the personal safety of staff is maintained, the speed is high, and the maintenance cost is low.

A process for preparing cyclohexanol, cyclohexanone and adipic acid by catalytic oxidization of cyclohexane under existance of metallic porphyrin catalyst and a certain temp and pressure through combination of different reactors is disclosed. Its advantages are high single-pass conversion rate of cyclohexane and total output rate, low energy consumption and cost, and no need of cyclohexanol or acetone solvent and cocatalyst.

A method for preparing magnetic biochar from straw includes the step of selecting of a straw material, wherein wheat straw, corn straw, rice straw or cotton straw is selected as the straw material, the straw material is pretreated by cleaning, then the straw material is dipped with a trivalent iron salt solution, and filtered by vacuum, then a filter cake is dried, and a finished magnetic biochar product can be obtained by carbonization treatment in inert gas conditions. The magnetic biochar can be obtained by dipping the straw material in the trivalent iron salt solution by a pyrolysis process, and a new way for the use of straw is provided.

The invention discloses a fluoro methoxylpyrazole-containing o-formylaminobenzamide compound shown as a structural formula (I) or agriculturally suitable salts thereof, a synthesis method and application thereof. The fluoro methoxylpyrazole-containing o-formylaminobenzamide compound has the advantages of effectiveness, low toxicity, low cost and environmental safety and can be used for preventingand removing various pests in the fields of agriculture and horticulture or pests parasitized on animals. The fluoro methoxylpyrazole-containing o-formylaminobenzamide compound has very high activityon lepidopteran pests (plutella xylostella, spodoptera exigua and cotton bollworm), hemipteran pests (black peach aphid and aphis craccivora koch), homopteran pests (nilaparvata lugens), dipteran pests (liriomyza trifolii) and leaf beetle pests (phaedon conchleariae). Particularly, good effect on the lepidopteran pests, the hemipteran pests and the dipteran pests can be achieved under the condition of low dosage of the compound.

The invention discloses a multilayer composite plate for building templates and brick pallets, which is prepared from magnesium cement gel added with a reinforcing material and a filler, and comprises surface layers (1) and sandwich layers (2); the surface layers (1) or / and the sandwich layers (2) comprise the filler or / and the reinforcing material with even content or gradient change; the number of the sandwich layers (2) is totally between 1 and 5; and the reinforcing material is arranged between adjacent sandwich layers (2). The invention also comprises a preparation process for the multilayer composite plate, which comprises that: production equipment with the capacity of stirring and preparing materials at multiple positions and rolling at multiple positions orderly rolls the surface layers (1) or / and the sandwich layers (2) on a subplate (3); and the reinforcing material is used as a reinforced structure between adjacent surface layers (1) or / and sandwich layers (2). The products corresponding to the invention have the characteristics of strong applicability, good technical effect and suitability for mechanical continuous production, and have predictable great economic and social values.

The invention discloses a method and device for data interaction and data structure interaction between a non-relation type database and a relation type database. The method comprises the steps of obtaining a first physical model of a source database, defining data characteristics and query characteristics of the database corresponding to the first physical model, generating an intermediate model according to the first physical model, the data characteristics and the query characteristics, converting the intermediate model into a second physical model of a target database according to preset strategies, the data structure of the intermediate model and the data characteristics and the query characteristics included by the intermediate model, establishing a mapping relation of the first physical model, the intermediate model and the second physical model, and exporting data in the source database into the target database according to the mapping relation. According to the method of the embodiment, the intermediate model is established between the data model of the relation type database and the storage structure of the non-relation type database, and therefore model supporting is provided for carrying out conversion on the storage structure and data between the relation type database and the non-relation type database.

The invention discloses a method and system for displaying and hiding application icons and a mobile terminal. The method for displaying and hiding the application icons includes the steps that a line pattern is drawn in a main menu interface along the application icons, serial numbers corresponding to the application icons are recorded when sliding tracks of the line pattern pass the application icons and form a sequence, and the sequence is used as a password for encrypting and hiding the selected application icons needing hiding. According to the method for displaying and hiding the application icons, the line pattern is drawn in the main menu interface along the application icons, the serial numbers corresponding to the application icons are recorded when the sliding tracks of the line pattern pass the application icons and form the sequence, whether the sequence is matched with a sequence which is recorded in advance when the application icons are hidden or not is judged, if yes, the hidden application icons are displayed. The method and system for displaying and hiding the application icons and the mobile terminal have novelty, are simple in operation, and enhance safety and interestingness.

The invention provides a portable travelling suspended-moxibustion and pecking-moxibustion device with functions of smoke exhaust and automatic height adjustment, and belongs to the technical field of medical appliances and devices. When moxibustion is used for treating diseases, medical staff holds a lighted moxa cone to perform moxibustion on a corresponding acupoint or perform moxibustion on a plurality of acupoints along main and collateral channels for a period, the operation process wastes time and labor, and the treatment efficiency is low; and the indoor environment is easily polluted by massive smoke generated by combustion of moxa cones when a plurality of patients are treated in a sickroom, so that the health of patients and medical staff are disadvantaged. The device is characterized in that a support (13) is fixed on a rack insert tube (5); a low-speed motor (14) with a gear (12) is fixed on the support (13); the gear (12) is engaged with a lifting rack (6) with a chute. The portable travelling suspended-moxibustion and pecking-moxibustion device has the advantages of time and labor saving in moxibustion treatment and no environmental pollution which is disadvantaged to health of patients and medical staff.

The invention discloses an outfield precision testing method for a high-precision star sensor. Accuracy in calculation of a star pattern posture of the star sensor and frequency domain stripping of short-period error terms of the posture are realized by utilizing a procession correction formula, an earth rotation model, an atmosphere correction model and a power spectral density formula, and the posture measuring error of the star sensor can be rapidly and effectively analyzed and evaluated. According to the method, the hardware resource is not occupied, the method is realized by utilizing software and does not need the ground intervention. According to the method, by combining the posture identification principle of the star sensor and adopting a data smoothing method, the posture truth value of each frame star pattern moment is calculated, so that a foundation is established for the subsequent analysis on the posture measuring error; by adopting the method for combining the time domain and the frequency domain, the short-period error term is decomposed into an airspace low-frequency error, a high-frequency error and a time-domain error by virtue of the power spectral density analysis, so that reasonable data support is provided for further evaluation of the precision indexes of the star sensor, and the index performance of the star sensor can be improved.

The invention provides a method for extracting speech emotion information. The method is characterized in that speech data are acquired or transmitted by a mobile phone, a computer and a recording pen by virtue of a data acquisition or communication process, and the emotions of a speaker are identified by use of speaker unrelated and speaker related methods. The speaker unrelated emotion information extraction method adopted in the method for extracting speech emotion information is composed of two parts of speech database recording and speech emotion modeling, wherein the speech database recording part is taken as the reference for training an emotion identifier and comprises at least one emotion speech database; the speech emotion modeling part is used for establishing a speech emotion model as the emotion identifier. The accuracy rate of the speaker related emotion information extraction method adopted in the method for extracting speech emotion information can reach 80%, and the speaker related emotion information extraction method is used for identifying the emotions in a speech signal by adjusting internal parameters in a statistical manner. The method is capable of identifying other complex emotions by use of a group of special parameters describing basic emotions.

The invention discloses a beam-forming method for forming an array antenna of a variable beam, which comprises the following steps of: (1) dividing a target beam into fixed beams and movable beams in shape according to the requirement of the target beam; (2) dividing all array elements of an array into n sub-arrays according to the number of the fixed beams and the number of the movable beams; (3) obtaining gain directional diagrams to be implemented by the sub-arrays by optimizing the layout of the sub-arrays and all unit amplitude phases in the sub-arrays under the environment of the whole arrays; (4) calculating phase directional diagrams of the respective sub-arrays, namely functions of phases varying along an angle of pitch Theta and an azimuth angle, under the environment of the whole arrays, and normalizing the phase directional diagrams of the respective sub-arrays to make the respective sub-arrays same-phase in pointing angles of the movable beams; and (5) determining weights of the respective sub-arrays according to a gain value of the target beam and the gain values of the respective sub-arrays obtained in the step (3), performing linear synthesis on the gain directional diagrams of the all sub-arrays by using the weights, and adjusting the weights of the respective sub-arrays to achieve an effect of forming as required.

The invention discloses a robot calibration method capable of achieving an automatic trajectory correction and resolves the problems of not only consuming time and labor but also having low correction precision caused by an artificial correction trajectory in prior art. The method comprises the following steps of: (1) shooting a robot clamp and a workpiece by a vidicon, and calibrating the shot image, so as to obtain a newest position relation between the robot clamp and the workpiece; (2) performing an image processing algorithm analysis on the shot image, so as to obtain the position informations of the workpiece and the end effector of the robot clamp; (3) according to the position informations, calculating the moving data required by keeping the consistent positions of the workpiece and the end effector of the robot clamp; and (4) automatically loading the moving data into an original motion trajectory program, thereby automatically obtaining a new motion trajectory program aiming at the new position of the workpiece or the robot, so as to finish the trajectory correction.

The invention relates to a stressed liquid crystal transparent projection screen which is composed of two transparent substrates (such as glass or acrylic or film) and a polymer dispersion liquid crystal layer between the two transparent substrates. The polymer dispersion liquid crystal layer is prepared from an ultraviolet light cured pre-polymer, a nematic phase liquid crystal material and gasket material plastic micro-spheres, wherein the ultraviolet light cured pre-polymer is composed of a polymerizable monomer, a chain transfer agent and a photo-initiator; and the mass ratio of the pre-polymer to the nematic phase liquid crystal is 1:1. The production method of the stressed liquid crystal transparent projection screen is an ultraviolet light curing process; ultraviolet lights are used for obliquely irradiating and a polymer is directionally polymerized; and stress is timely applied to directionally arraying and fixing liquid crystal molecules, so that the product has a more transparent appearance. The stressed liquid crystal transparent projection screen prepared by the invention has the advantage of clear projection imaging; glass products are suitable for solid transparent projection screens such as window showcases and the like; acrylic products are suitable for movable or suspended transparent projection screens such as exhibitions, theatre stages, karaoke and the like; and film products are suitable for portable type transparent projection screens and the application range of the film products is wider after the film products are matched with a mini-type projector (liquid crystal on silicon LCOS). According to the stressed liquid crystal transparent projection screen provided by the invention, audiences not only can see projected images but also can clearly see backstage scenes across the screen, so that the stressed liquid crystal transparent projection screen has a magic effect of suspending objects in the air.

The invention relates to a design method of a line unwinding constant tension control device in a line winding system. A servomotor and a line unwinding wheel are arranged on a frame, the line unwinding wheel is driven by the servomotor, a pulley block which comprises two fixed pulleys and a movable pulley is arranged on the frame behind the line unwinding wheel, the movable pulley is arranged between the two fixed pulleys and is arranged on a swing rod, the swing rod is articulated with the frame, an air cylinder is articulated on the frame, a piston rod of the air cylinder is connected with the swing rod in a driving mode, a tension sensor is arranged on the frame behind the pulley block, lines output by the line unwinding wheel are introduced into the tension sensor by the pulley block, and the lines which pass through the tension sensor are towed to a line winding host machine. The loading force of the air cylinder has a proportional relation with force and a force arm which act on the movable pulley of the swing rod, and the constant tension is ensured in a small angle. When the swing rod is lower than a balance position, inverse voltage is output to control the servomotor to wind the lines; when the swing rod is higher than the balance position, positive voltage is output to control the servomotor to unwinding the lines; and when used, the line unwinding content tension control device has higher stability.

The invention discloses a hospital cleaning apparatus which comprises a loading board with internal cavity structure. A slide is arranged on one side of the upper surface of the loading board; a u-shaped holder is arranged on the other side of the upper surface of the loading board. A first electric trolley is arranged on the slide and provided with a mount on the upper surface. An accumulator is arranged on one side of a water storage bucket and on the internal lower surface of the loading board. An upright rod is arranged on the upper surface of the loading board and disposed on one side of the u-shaped holder, a vertical mounting board is arranged on the upper surface of the upright rod, and a controller is arranged on the front surface of the vertical mounting board. A power terminal of the controller is connected with the accumulator through a conductor wire, and an output end of the controller is connected with the first electric trolley, an electric pusher, a second electric trolley, a second electric pusher and a water pump via conductor wires respectively. The hospital cleaning apparatus has the advantages of wide cleaning range including ceiling, high work efficiency, capability of liberating manpower, and moderate weight.

A discharge mill technology using simple hollow long electrode is based on the numeral control technique and features use of simple hollow long electrode plus guider. The said electrode features simple cross-section, hollow structure for delivering liquid and high length-radium ratio (more than 3:1). Its advantages are high productivity to Ti-alloy, refrectory alloy and stainless steel.

The invention discloses a clamping and weighing device. The clamping and weighing device comprises a worktable; a set of conveying belts is arranged on one side of the upper surface of the worktable; a clamping mechanism is arranged on the upper surface of the worktable and positioned on one side of the set of conveying belts; a set of mechanical grippers is arranged between the clamping mechanism and the set of conveying belts; a support plate is arranged at the upper end of a vertical rod; a controller is arranged on the upper surface of the support plate; a capacitance touch screen is arranged on the front surface of the controller; a PLC programming system is arranged in the controller; a commercial power interface is formed in one side surface of the worktable, and is electrically connected with the controller; an input end of the controller is electrically connected with the set of conveying belts, the set of mechanical grippers, an electric push rod of a rotating motor, a linear motor 1, an electric car, the PLC programming system, a linear motor 2 and a two-way extension cylinder; and an output end of the controller is electrically connected with the capacitance touch screen. The clamping and weighing device has the beneficial effects of simple structure and high practicability.

The invention discloses a cereal beverage and a preparation method thereof. The cereal beverage is prepared from the following raw materials in percentage by weight: 1-25% of cereal, 0.02-25% of malt and the balance of other ingredients (including water). The preparation method of the cereal beverage comprises the following steps: adding water into cereal raw materials, homogenizing and gelatinizing; regulating the temperature of the mixture to 20-80 DEG C, adding malt into the mixture to stir to hydrolyze for at least 10 minutes, the extract liquid is obtained after solid-liquid separation and is mixed with other ingredients to mix the beverage, and supernatant liquid or homogenous liquid is extracted to be filled and sterilized.

The invention provides a pretreatment technique and equipment for degrading high-concentration organic waste water by power ultrasonic cavitation. The equipment comprises an organic waste water regulating tank, a flow-type power ultrasonic cavitation degradation reactor, an automatic control device and other main operating devices. Through the cavitation effect, mechanical effect and free radical effect generated by the conduction of the power ultrasonic in the high-concentration organic waste water, the pretreatment technique and equipment can destroy the interfaces of functional group structural units of certain key enzymes of various nondegradable organic pollutants, and break the stable chemical bonds / chains so as to oxidize and decompose nondegradable organic pollutants, thereby reducing the nondegradable organic pollutants into inorganic substances or simple and degradable organic substances, and further creating favorable conditions for the application of the conventional sewage treatment technique. The pretreatment technique and equipment are mainly used for treating heavily-polluted industrial high-concentration organic waste water, and can be used independently or matched with other existing sewage treatment techniques.

The invention discloses a leftover material processing device. The leftover material processing device comprises a working table, a set of sliding ways is formed in the upper surface of the working table, a sliding rail number one is arranged in each sliding way, an electric trolley number one is arranged on each sliding rail number one, a miniature air cylinder with the telescopic end in the horizontal direction is arranged on each electric trolley number one, the telescopic end of each miniature air cylinder is provided with an installing box, and a rotating motor with the rotating end in the horizontal direction is arranged in each installing box; a controller is arranged on one side face of the working table, a mains supply interface is formed below the controller and electrically connected with the controller, and the controller is electrically connected with the electric trolleys number one, the rotating motors, the telescopic air cylinders and miniature linear motors. The leftover material processing device has the advantages of being easy to operate, convenient to use, neat in cutting and suitable for small and medium-sized enterprises and practical, liberates manpower and protects body safety of operators.

A process for preparing cyclohexanol, cyclohexanone and adipic acid by catalytic oxidization of cyclohexane under existance of metallic porphyrin catalyst and a certain temp and pressure through combination of different reactors is disclosed. Its advantages are high single-pass conversion rate of cyclohexane and total output rate, low energy consumption and cost, and no need of cyclohexanol or acetone solvent and cocatalyst.

The invention relates to a process and a device for recovering and recycling protective gas of a bell-type bright annealing furnace. The process comprises the following steps of: performing cooling and condensation of oil and gas in refluxing protective gas of a bell-type bright annealing furnace group; allowing the cooled and condensed protective gas to enter a water separator to remove most of water and oil; allowing the cooled protective gas from which the oil and the gas are removed to enter a preceding stage buffer tank; after the protective gas is buffered by the preceding stage buffer tank, pressurizing by using a roots blower; allowing the pressurized protective gas to enter an oil absorption device to remove oil and enter a deaerator to remove oxygen; reacting in the deaerator to generate water and discharge heat; cooling the protective gas by using a cooler and removing water from the protective gas by using a condenser; allowing the cooled and dehydrated protective gas to enter the water separator to separate water; allowing the protective gas to enter an absorption regeneration drying device for removing water and impurities deeply; and performing decompression and voltage stabilization on the purified gas by using a post-stage buffering tank and then supplying the purified gas to the bell-type bright annealing furnace group. Through the process and the device, the refluxing protective gas of the bell-type bright annealing furnace group is recovered and purified and enters the annealing furnace to be recycled as the protective gas again.

The invention relates to a novel method for storing and brewing white spirit and aims to solve the defects that currently the storage of the white spirit at home and abroad adopts a mode that after being stored for a certain period, the white spirit of the original grade is subjected to design, alcohol content reduction, combination, seasoning, adsorption, filter and then is subjected to filling production; in the natural storage condition, the stimulating components and hazardous components in the white spirit cannot sufficiently react and volatilize; the stability of the association of the white spirit body is not good; the vinosity of the produced white spirit is lack of soft taste and clean aftertaste; and the quality of the produced white spirit is not stable. In the novel method for storing and brewing the white spirit of the invention, the double cellaring, namely the secondary ageing process is adopted, and according to the substrate concentration, the non-homogeneous substance motion characteristics and the permutation and combination principle, primitive base wine generated by carrying out solid-state fermentation and distillation in a mud cellar is subjected to twice physical and chemical changes, ageing, alcoholizing and bouquet spreading, and processing in a conventional wine storage container under a specific environment to generate the natural, hygiene and health white spirit.

The invention discloses a criminal case aid decision making method based on a fuzzy deep belief network. The method comprises steps of: establishing a vector model describing a case according to a legal document and a measurement of penalty method; establishing an appropriate deep neural network structure according to the complexity of a judged problem; optimizing a model parameter by using supervised and unsupervised learning methods in virtue of a known plus or minus judgment relation; and performing modeling by using the neural network and predicting the judgment result of a judge. The method can guarantee the objectivity and the fairness of case trial and improves trial efficiency.

The invention discloses a method for easing distributed denial of service attacks, which solves the defects in the prior detection or defense technologies. The method provided by the invention comprises the following steps of: presetting a group of regional scope presented by an IP (Internet Protocol) address block, and a threshold of the number of messages of a protocol type or a message property allowed by each sub-region in the regional scope; when receiving one message of the corresponding protocol type or message property, searching the sub-region to which the message belongs according to a source IP address; if a cv (current value) of the number of the messages of the protocol type or message property corresponding to the sub-region to which the message belongs is more than 0, subtracting 1 from the cv, and further processing the received messages regularly according to the protocol type or message property; if the cv is equal to 0, or directly discarding the messages or discarding the messages after recording related information of the messages; aiming at the request on easing different types of distributed denial of service attacks, concurrently executing different recovery processing for the cv of the number of the messages of the corresponding protocol type or message property in corresponding sub-region within a given scope. The method is used in an IP network.

The invention belongs to organic fertilizer, and in particular relates to organic fertilizer for killing underground injurious insects and a preparation method thereof. The organic fertilizer comprises the following components in part by weight: 1000 parts of tobacco stalk, 25 to 30 parts of dry livestock manure, 5 to 10 parts of urea and 3 to 5 parts of solid high-efficient microorganism zymogeneous bacteria. The preparation method comprises the following steps that: the tobacco stalk is smashed; the livestock manure is dried and dehydrated; the urea is added to be uniformly mixed; the zymogeneous bacteria is inoculated; the moisture and the pH value are adjusted, fermentation stocks are piled up, and black plastic film covers the fermentation stocks, so the fermentation stocks are undertaken the anaerobic fermentation; after the temperature is increased, the stocks are turned for a plurality of times until the materials are fermented and matured and the size is reduced to two thirds of that of the original stocks; and the fermented stocks are naturally ventilated and dried and are bagged to store. The organic fertilizer has the advantages that the fertilizer efficiency is high, the underground injurious insects can be killed, the content of the organic colloid of the soil is increased after the application of the fertilizer, the fertilizer and water maintaining capacity of the soil is improved, the period of validity of the fertilizer is prolonged, and the probiotics in the soil can be compensated.

The invention relates to a comb type carboxylate ternary copolymer and a preparation technology thereof. The comb type carboxylate ternary copolymer is synthesized by taking an acrylic acid homologue, mono polyethylene glycol maleate and an acrylate as monomers, and performing free radical copolymerization in a water-phase system. The advantages comprise that the carboxylate ternary copolymer dispersant containing the acrylic acid unit has relatively good water solubility and has good adaptability on pH value of a dispersion system; the dispersant has ideal polymerization degree and carboxyl and polyethylene glycol grafting degree, stabilizes dispersed substances through steric hinerance effect and electrostatic repulsion, and is low in system viscosity; and the dispersant has good dispersing effect on inorganic powders and pesticides.

The invention provides a novel tubular hard-surface resurfacing welding material which includes a tubular skin and filling powder. The novel tubular hard surface resurfacing welding material includes the components as follows: 20 to 40 percent of steel as well as 60 to 80 percent of filling powder; the components of the filling powder is as follows: 35 to 75 percent of spherical hard alloy grains, 15 to 40 percent of carbonated casting tungsten grains, the surface of which are processed, 5 to 20 percent of spherical carbonated casting tungsten grains, 2 to 6 percent of SiMn alloy powder, 0.2 to 0.6 percent of resin powder as well as 0.1 to 2 percent of metal Nb. The spherical hard alloy grains, the carbonated casting tungsten grains and the spherical carbonated casting tungsten grains with thermal stability are adopted, thus remarkably improving the wear resistance and the impact resistance of a resurfacing welding layer; less Nb element is added to improve the resurfacing welding manufacturability, thereby improving the intensity and the toughness of a substrate metal, enhancing the anti-impact capacity of the resurfacing welding layer and the fixing capacity to the hard grains as well as prolonging the service life of the resurfacing welding layer. The tubular hard surface resurfacing welding material is widely applied to the wear-resistance reinforcement on the working surfaces like the gear surface of a steel gear roller bit, a back cone, a palm tip and the other engineering tools.