40results about How to "Uniform input" patented technology

The invention provides an opposite-side double-output-shaft large-transmission-ratio speed reducer with a self-locking function and belongs to the technical field of mechanical transmission. The speed reducer comprises an input shaft, a multifunctional disc, left steel balls, right steel balls, a left movable tooth carrier, a right movable tooth carrier, a left output disc, a right output disc, a left output shaft, a right output shaft and a machine frame. Movement is transmitted between the input shaft and the multifunctional disc through tooth profile engagement. The machine frame is composed of a left machine frame body and a right machine frame body. The left movable tooth carrier and the right movable tooth carrier are fixedly connected to the left machine frame body and the right machine frame body correspondingly. The left steel balls are uniformly distributed in a radial groove which is distributed in the circumferential direction of the left movable tooth carrier and located in the staggered area between a tooth profile groove in the left end face of the multifunctional disc and the left output disc all the time. Similarly, the right steel balls are uniformly distributed in a radial groove which is distributed in the circumferential direction of the right movable tooth carrier and located in the staggered area between a tooth profile groove in the right end face of the multifunctional disc and the right output disc all the time. The left output disc and the right output disc are fixedly connected with the left output shaft and the right output shaft correspondingly. By the adoption of the speed reducer, single-shaft input and opposite-side double-shaft reduction output can be achieved, the rotation directions and reduction ratios of single-shaft input and opposite-side double-shaft reduction output are identical or different, and the speed reducer has the characteristics that the structure is compact, self-locking can be achieved, and the transmission ratio range is wide.

The invention relates to a device (10) for mechanically comminuting material conglomerates composed of materials having different density and / or consistency, comprising a comminuting chamber (14) having a feed side and an outlet side, which comminuting chamber is surrounded by an in particular circular cylindrical and / or conical comminuting chamber wall (42) expanded in a downward direction and has at least two segments which are consecutive in an axial direction, in each of which at least one rotor (26, 28, 30) is arranged coaxially to the comminuting chamber, wherein each rotor has a rotor shaft and has striking tools (38) extending at least largely radially into the comminuting chamber at least during operation, a feeding cone (12), which covers the rotor shaft(s), is arranged above the comminuting chamber (14) on the feed side, and an inflow funnel (11) is arranged above the feeding cone (12), wherein an inflow region is formed between the inflow funnel and the feeding cone, the size (d) of which inflow region can be adjusted, the directions of rotation of the rotors (26, 28, 30) are opposite in at least two consecutive segments, discharge ribs (48) are arranged annularly on the inside of the comminuting chamber wall at axial distances and / or the radius of the comminuting chamber wall (42) increases from top to bottom, and an air flow apparatus (17, 72) for leading a particle / air mixture out of the comminuting chamber (14) is arranged in connection with the comminuting chamber, which air flow apparatus has at least one fan rotor (31) arranged coaxially to the rotor axis, the at least one fan rotor having a dedicated shaft (33), which is driven by means of a dedicated fan drive (25) in order to rotate the fan rotor independently of the rotors. Very high impact energies of material conglomerates to be separated against the striking tools are achieved by means of such a device, wherein the smashed particles can be effectively transferred into a further processing stage. In addition, the material separation can be controlled by means of the effective control of the material flow, in particular the flow of very fine particles.

The invention relates to feeding equipment, in particular to blast-furnace process feeding equipment. The technical problem to be solved is to provide blast-furnace process feeding equipment, to solve the problem, the blast-furnace process feeding equipment is provided. The blast-furnace process feeding equipment comprises a base plate, a heating box, a heating kettle, a vibrating device, a feeding hopper and the like; the vibrating device is arranged at the left end of the top of the base plate, a top supporting frame is arranged above the base plate, a smashing device is arranged on the lower end of the left side of the top supporting frame, the heating box is connected with the lower end of the right side of the top supporting frame, the heating kettle is arranged on the heating box, the feeding hopper is arranged above the left side of the heating kettle, and the feeding hopper is arranged below the smashing device and located above the vibrating device. According to the blast-furnace process feeding equipment, smashing of caked or solid smelting raw materials is achieved, the follow-up heating treatment of the smelting raw materials is accelerated, and meanwhile the vibrated feeding hopper can prevent the smelting raw materials from adhering to the wall of the feeding hopper.

The invention provides a negative pressure assist device for soft bag infusion, which comprises a bearing plate, a first angle aluminium, a second angle aluminium, a third angle aluminium, a press roll, a pressure regulator, a reel, a power supply, a switch, a potentiometer, a motor, a first gear and a second gear, wherein the first angle aluminium, the second angle aluminium, the third angle aluminium, the press roll and the pressure regulator are fixed on the bearing plate; the reel is arranged on the first angle aluminium and the second angle aluminium; the power supply, the switch, the potentiometer and the motor are connected in series; the motor and the first gear are arranged on the third angle aluminium; the second gear and the reel are arranged on the first angle aluminium and the second angle aluminium; the reel is provided with a clamping device; the press roll is positioned below the reel; both ends of the pressure regulator are fixed on the bearing plate and the middle part of the pressure regulator is arranged across the press roll and is pressed on the press roll. According to the invention, power for generating a negative pressure can be provided for an infusion soft bag, so that the infusion soft bag does not need to be suspended; the negative pressure assist device is convenient to use, is particularly suitable for the use requirement for long-time outdoor or field rescue and particularly rescue on patients suffering from injuries caused by war and natural disasters, is low in manufacturing cost and can be repeatedly used.

The invention relates to the field of disposable hygienic products, in particular to a preparation method of an antibacterial and deodorizing absorption product. The method comprises the following steps of 1, rolling a hydrophilic non-woven fabric, forming a bottom layer with a plurality of hydrophilic recesses, laying wood pulp cotton, compounding an antibacterial non-woven fabric material, carrying out secondary rolling to form antibacterial recesses, laying an SAP material, then compounding a bottom-layer non-woven fabric material on the peripheral sides of the hydrophilic recesses in a hot rolling or ultrasonic welding manner, forming dotted joint parts, and forming an absorption core; 2, forming a plurality of liquid-permeable recesses in a liquid-permeable surface layer, and forming through holes in the bottoms of the liquid-permeable recesses; 3, compounding the liquid-permeable surface layer and the absorption core, and enabling the liquid-permeable recesses and the hydrophilic recesses to be distributed in a staggered manner; and 4, compounding a bottom-layer water-repellent material to form a basic absorption product. The method solves the technical problems that an existing antibacterial and deodorizing absorption product is relatively thick and relatively poor in absorption performance.

The invention relates to the technical field of lithium battery recovery, in particular to a waste power lithium battery recovery method, which comprises the following steps: S1, energizing the wastepower lithium battery and releasing the residual electric quantity in the lithium battery; S2, placing the lithium battery treated in S1 into a lithium battery comprehensive treatment equipment for crushing and sorting; S3, sorting and storing different materials selected in S2, and recovering them respectively. The method ensures the safety of the lithium battery recovery by releasing the electric quantity of the lithium battery, and the lithium battery comprehensive treatment equipment designed by the inventor can realize the high-efficiency sorting of the lithium battery, thereby improvingthe efficiency of the lithium battery recovery.

Food is prepared either directly or indirectly on the interior of cooking surfaces of this type. A heating device for heating the food, which is characteristically configured as a flat radiant heating body, is located on the exterior of the cooking surface. The aim of the invention is to optimise thermal induction over the shaped cooking surface. To achieve this, according to the invention, the heating device consists of an electric resistance heating element, which is mounted on the exterior of the glass or glass ceramic cooking surface in direct contact therewith. Said resistance heating element can consist of a radiant panel (4) or coiled strip conductors.

The invention discloses a cooling system of a cold plate type server and a control method. The cooling system comprises a compressor refrigeration cycle, a fluorine pump refrigeration cycle and an emergency refrigeration cycle, wherein the compressor refrigeration cycle, the fluorine pump refrigeration cycle and the emergency refrigeration cycle are communicated with one another, and one refrigeration mode in the three refrigeration cycle modes is selected and used according to the external temperature. According to the invention, the cold storage spray cooling and intermediate cooling technology is adopted, so that the heat dissipation effect of the cold plate type server is greatly improved, and the purposes of saving energy and reducing consumption are achieved; the compressor refrigeration cycle and the fluorine pump refrigeration cycle are independently used at different temperatures, so that the maximum heat dissipation purpose can be achieved with the minimum energy consumption, and the purposes of saving energy and reducing consumption are achieved; and by arranging the emergency refrigeration cycle, when the compressor breaks down, heat dissipation can be continuously conducted on the cold plate type server, so that normal operation of the server is guaranteed, and the reliability of the device is greatly improved.

The invention relates to the field of industrial environmental protection, and in particular, relates to an industrial environmental protection purifier which comprises a shell, a base, a mixing mechanism and a filtering mechanism; the shell and the base are fixedly connected; the mixing mechanism is used for stirring sewage and a purifying agent and is arranged on the inner side of the shell; the filtering mechanism is arranged between the mixing mechanism and the shell; the mixing mechanism comprises a placement assembly, a stirring assembly and a driving assembly; the placement assembly is arranged on the inner side of the shell in a sliding connection mode and used for receiving sewage and the purifying agent; the stirring assembly is arranged on the inner side of a receiving assembly and is connected with the receiving assembly; the driving assembly is arranged on the outer side of the placement assembly and connected with the shell; and the mixing mechanism is arranged, and the driving assembly is used for driving the placement assembly and the stirring assembly, so that not only is uniform input of the purifying agent realized, but also the purifying agent can be fully mixed with sewage.

The invention discloses a fertilizer stirring device capable of conveniently discharging fertilizer for gardens, and belongs to the technical field of garden machines. The fertilizer stirring device capable of conveniently discharging fertilizer comprises a box body, a pulverizing chamber, a first rotating shaft, a spiral cutter blade, a flow equalizing plate, stirring devices, a stirring chamber,a first sealing plate, a hydraulic device, support legs, a feeding hopper, a first motor, a second rotating shaft, a second motor and a second sealing plate, wherein the pulverizing chamber and the stirring chamber are arranged in the box body, and the pulverizing chamber is positioned on the upper side of the stirring chamber; the feeding hopper is arranged in the center of the top end of the box body; the feeding hopper is communicated with the pulverizing chamber. The fertilizer stirring device capable of conveniently discharging fertilizer for gardens disclosed by the invention has a simple structure, is reasonable in design and is convenient to use; due to the arrangement of the pulverizing chamber, larger particles in fertilizer raw materials can be pulverized, so that the mixing quality of the fertilizer is improved; due to the arrangement of the flow equalizing plate, the fertilizer raw materials can be uniformly conveyed into the stirring chamber, so that the fertilizer can be mixed more quickly; due to the first sealing plate and the second sealing plate, feed in the box body can be conveniently collected and cleared up.

The invention relates to a method and a device for cleaning contaminated used oil, in which starting material is heated to the gas phase and the resultant vapor is rectified, with purified oil being removed as condensate from a drain in a rectification column. The problem addressed by the invention is that of providing a method and device for purifying contaminated used oil, which method enables efficient operation even in the smallest of systems, such that a compact system configuration and thus in particular mobile use by a container structure is made possible. The invention also addresses the problem of reducing the cost required for servicing. The problem according to the invention is solved in that used oil is subjected to an evaporation process by at least indirectly placing the starting material in contact with a melting bath, the melting temperature of which is above the evaporation temperature but below the ignition temperature of the used oil, and by rectifying the vapor in the rectification column.

A printing unit (2) contains a dampening unit (4) and an inking unit (5) which includes a screen roller (8) with a circumference URW and an ink applicator roller (7) with a circumference UFA and a gap having a paper sheet length KBL, the ink applicator roller resting against the screen roller. The circumference URW of the screen roller (8) and the circumference UFA of the ink applicator roller (7) and the paper sheet length KBL of the gap (9) are dimensioned in predetermined proportions relative to each other so as to avoid ghosting.

The invention relates to a vaporizing arrangement. It preferably should be utilized in vacuum coating systems. The vaporizing arrangement comprises a two-part housing, namely a pan ( 3 ) and an associated lid ( 8 ), which is provided with the exit slot ( 16 ) for the material to be vaporized. Extending transversely above the pan ( 3 ) are several heating rods ( 5 ) which can be contacted on the outside and the radiant output of which heats the material to be vaporized, for example zinc sulfide, and causes it to vaporize. The arrangement is relatively simply constructed, can be easily disassembled, cleaned, and reassembled and can, if several arrangements of this type are combined, also be used for the uniform coating of very wide films.

The invention relates to a tea leaf spreading device. The tea leaf spreading device comprises a spreading box; a plurality of first conveying belts are arranged in the spreading box in parallel from top to bottom; the running directions of every two adjacent first conveying belts are opposite; a first drainage plate is arranged between every two adjacent first conveying belts and is used for guiding materials on the first conveying belt above onto the first conveying belt below; a material inlet is formed in the top of the spreading box and is used for guiding tea leaves into the upmost firstconveying belt; a tea leaf discharging hole is formed in the bottom of the spreading box and is used for guiding the tea leaves into a second conveying belt below the spreading box; and the bottom ofeach first conveying belt is provided with a first air pipe connected with a blower. According to the invention, labor intensity of workers is greatly reduced, and pollution and damage to fresh leavesby the outside are avoided. The flowing speed of spread green tea leaves is controlled by adjusting the rotating speed of the first conveying belts, so that fresh tea leaves can properly dissipate water in an optimal environment and a most suitable time period, and thus quality of the tea leaves is improved to the maximum extent.

The invention belongs to the technical field of steel pipe pile welding devices, and discloses an offshore wind power foundation steel pipe pile welding device. The offshore wind power foundation steel pipe pile welding device comprises a supporting bottom plate, a fixing frame is vertically arranged at the left end of the top of the supporting bottom plate, a welding frame is vertically arrangedat the upper end of the right side of the fixing frame, and inner wall welding equipment is arranged at the right end of the welding frame. A welding wire guide pipe is horizontally and fixedly arranged in an inner cavity of the welding frame, a first welding wire reel is arranged at the upper end of the left side of the fixing frame, two sets of lifting platforms are arranged on the right part ofthe top of the supporting bottom plate, and steel pipe pile bearing grooves are formed in the tops of the two sets of lifting platforms correspondingly and supported by supporting wheels, so that steel pipe piles rotate more stably. By arranging the first welding wire reel and a second welding wire reel, rotation is controlled through an internal motor, input of welding wires is more uniform, thewelding effect is improved, and popularization of the offshore wind power foundation steel pipe pile welding device is facilitated.

The invention relates to the technical field of food refrigerating equipment, in particular to a beverage cold storage air curtain cabinet. The beverage cold storage air curtain cabinet comprises a cabinet body. A storage cavity is formed in the front end of the cabinet body. A plurality of partition plate mechanisms are evenly arranged in the storage cavity at equal intervals. A machine box is arranged at the bottom end of the cabinet body. A refrigerating system and a cleaning assembly are arranged inside the machine box. The front end of the machine box is sealed through a front plate, andthe rear end of the cabinet body is sealed through a rear plate. Resistance strain sensors are used for accurately measuring the gravity on storage plates and can remind users when excessive beveragesare put onto the storage plates to be overloaded, and deformation or rupture of the aluminum alloy partition plates due to overloading of goods is prevented. An air cylinder is started to push a concentrically-square cleaning pipe so that the cleaning pipe can be located over a condenser to spray out high-pressure water flow, and the condenser can be cleaned. The concentrically-square cleaning pipe moves to the inner edge of the machine box in the refrigerating process at ordinary times, cooling of the condenser cannot be hindered, the condenser can be effectively and regularly cleaned, the cooling efficiency of the condenser is greatly improved and the service life is prolonged.

The invention relates to a casting nozzle (10) for feeding molten metal into a moving casting mould of a caterpillar casting machine, comprising an elongate housing body (20) having a slot-like outletside (A), wherein a plurality of flow passages are formed in the housing body (20) along its longitudinal direction (x) and over its width direction (B), through which passages molten metal can be channelled in the direction of the outlet side (A) and can be fed from there into the moving casting mould, wherein the housing body (20) is of at least two-part design in the direction of its height and has at least one upper shell and at least one lower shell, wherein the upper shell and the lower shell are spaced apart from one another by separating webs and the individual flow passages extend between the separating webs.

The cavity wall tumor chemotherapy drug intervention device includes an outer sheath tube and an inner push rod. The inner push rod is coaxially inserted in the outer sheath tube. There is an index finger buckle, the length of the inner push rod is greater than that of the outer sheath tube, and the front end of the inner push rod is fixed with a mounting ring, which is hexagonal in shape, and a drug injection component is installed on the mounting ring; in summary, the present invention controls the index finger Expand the injection needle with your thumb and puncture it into the tumor tissue. The injection needle is evenly distributed, and the chemotherapy drug can be evenly injected into the tumor tissue. The chemotherapy effect is good, and it avoids multiple punctures on the tumor tissue and reduces the operation steps. Avoid tumor spread caused by multiple punctures.

The invention discloses a real-time dust removal and cooling device and method for a camera lens in a high-dust environment, which belongs to the technical field of dust removal equipment and is set on the camera lens, including an air inlet joint, an air guide wall, an inner air outlet part and an outer air outlet part. The air wall is set on the camera lens. The bottom of the air guide wall is provided with an air inlet joint for connecting to a clean low-temperature compressed air source. The top of the air guide wall is provided with an inner air outlet and an outer air outlet. The guide part of the inner air outlet hole is ejected from the top lens of the camera lens through the compressed air of the air guide wall. Air is ejected from the front of the camera lens. The technical solution provided by the invention can clean the dust on the lens of the camera in real time in the working environment of a large amount of dust during the mining process of the coal mine, and at the same time play the role of cooling the lens to improve the quality of the camera.

The invention discloses an anti-infection syringe filling device with an alarm function, which comprises a mixing mechanism, a nursing bed is arranged below the mixing mechanism, a ratio control mechanism is arranged below the nursing bed, one side of the nursing bed is provided with a control box, one side of the mixing mechanism is connected with a ratio adjusting mechanism, and the ratio adjusting mechanism is connected with the control box. The ratio adjusting mechanism comprises a ratio adjusting box, the interior of the ratio adjusting box is connected with a water tank and a chemical agent box through pipelines, liquid inlet pumps are arranged on connecting pipelines of the water tank and the chemical agent box, the liquid inlet pumps are electrically connected with the control box, and a plurality of mixing cavities are formed in the ratio adjusting box; upper valves are connected to the upper portions of the multiple mixing cavities through pipelines, lower valves are connected to the lower portions of the multiple mixing cavities through pipelines, and the interiors of the multiple upper valves are connected with an internal pipeline of a medicament box.

The invention relates to the technical field of lithium battery recovery, in particular to a waste power lithium battery recovery method, which comprises the following steps: S1, energizing the wastepower lithium battery and releasing the residual electric quantity in the lithium battery; S2, placing the lithium battery treated in S1 into a lithium battery comprehensive treatment equipment for crushing and sorting; S3, sorting and storing different materials selected in S2, and recovering them respectively. The method ensures the safety of the lithium battery recovery by releasing the electric quantity of the lithium battery, and the lithium battery comprehensive treatment equipment designed by the inventor can realize the high-efficiency sorting of the lithium battery, thereby improvingthe efficiency of the lithium battery recovery.

The invention discloses a pressure-bearing heat storage water tank for heating, and particularly relates to the technical field of energy storage, the pressure-bearing heat storage water tank comprises a tank body, and a temperature control mechanism and a cleaning mechanism are arranged in the tank body; the temperature control mechanism comprises an upper water distribution plate, the upper water distribution plate is arranged at the top end in the tank body, the upper water distribution plate is fixedly connected with the inner wall of the tank body, a hot water distribution pipe is arranged at the bottom of the upper water distribution plate, and one end, close to the upper water distribution plate, of the hot water distribution pipe penetrates through the upper water distribution plate and extends to the top of the upper water distribution plate. Through the arrangement of the water distribution holes in the upper water distribution plate and the lower water distribution plate, hot water and cold water can be uniformly input into and output from the tank body, and water flow in the tank body is kept stable and not mixed; a user can know the temperature and pressure change in the tank body, and the whole operation is simple and convenient.

The invention relates to a galvanized steel pipe inner wall blowing head which comprises a gland, a cylinder and an air head. The head of the air head is spherical. A bolt arranged on a center shaft of the air head is coaxial with the cylinder, and the gland is fixedly mounted through a fixing nut. The gland is coaxially and fixedly mounted on the cylinder and provided with an air inlet. An air cavity is formed by a closed space formed by the gland, the cylinder and the air head. A gap is reserved between the inner edge of the end of the cylinder and the spherical outer edge of the air head. A circle of flow blocking holes are formed in the outer edge of the air head at intervals. The galvanized steel pipe inner wall blowing head adopts the mode that the gap formed by the inner edge of the circular cylinder and the outer edge of the air head serves as a blowing hole, formed air flow is in an umbrella shape, the inner wall of a galvanized steel pipe can be uniformly blown, the blowing effect is good, and the flow is consistent; and a plurality of distribution holes are uniformly formed in the cylinder in the radial direction and enable air to be more uniformly input into the air cavity, airflow turbulence caused by a vortex formed in the air cavity is prevented, and the blowing effect is improved.

The invention relates to an efficient, safe and environment-friendly blasting device, belonging to the technical field of metallurgic combustion auxiliary facilities. The device comprises a tank body with a top provided with a feed opening and a nitrogen charging opening; the lower part of the tank body is in a reduced conical shape, while the bottom is provided with a fluidized bed; the tank body is internally provided with a discharge pipe; and the lower end of the discharge pipe is arranged above the fluidized bed, while the upper end penetrates through the side wall of the tank body. The blasting device is characterized in that homothermal labyrinths are filled in the middle of the tank body; and the homothermal labyrinths consist of metal strips which are intersected lengthways and transversely to form into grilles. As the homothermal labyrinths are made of metals with favorable thermal conductivity and are intersected lengthways and transversely to fill the middle of the tank body, an ideal homothermal effect can be obtained, and a local high temperature possibly existing in the middle of the tank body can be eliminated, thereby effectively avoiding combustion and explosion and ensuring use safety. In addition, the homothermal labyrinths are in favor of the uniform input of coal powder so that the blasting effect is better.

The invention discloses an underground transmission device for paper product processing leftovers, which comprises a processing body fixed on the ground, the processing body is provided with a leftover channel, a transmission cavity is opened in the ground, and a transmission chamber is provided at the outlet of the corresponding leftover channel on the ground. The leftover material feeding port connected to the chamber, the two ends of the inner wall of the transmission chamber are respectively connected with rotating rollers, and the two rotating rollers are connected by a transmission belt, and one of the rotating rollers is fixedly connected with a drive motor coaxially. The two ends of the output shaft and the other rotating roller are coaxially fixedly connected with a first bevel gear. In the present invention, by setting the drying mechanism, the first driving mechanism, the second driving mechanism and the hot air extraction mechanism, the leftover materials can be quickly dried, cooled and dissipated during the transportation process, and the subsequent drying and heat dissipation processes are omitted, which saves Cost, the Lord has improved the processing efficiency.

He invention provides a reactor comprising a reaction chamber having a catalytic surface in contact with reactants in said chamber; and a source for passing electrical current through said catalytic surface. The reactor can be used for dehydrohalogentation reactions, such as dehydrochlorination of HCFC-244bb to HFO-1234yf, and for reactions where zero valent metals are employed for catalysis. The invention further provides a process to prepare HFO-1234yf from HCFC-244bb using an electrically heated reaction chamber.

The invention discloses a vortex aerodynamic force rotary rolling additive manufacturing device and method. The vortex aerodynamic force rotary rolling additive manufacturing device comprises components of the vortex aerodynamic force rotary rolling additive manufacturing device, specific structures and requirements of the components and the steps of the vortex aerodynamic force rotary rolling additive manufacturing method. The device comprises a friction head main body part and a vortex aerodynamic system part, wherein the friction head main body part comprises a friction raised head, a friction head main body internally provided with a laval pipe, a vortex connecting device arranged at the upper end, and a chuck part connected with a bearing part of a machine tool; the vortex aerodynamic force system comprises a high-pressure gas cylinder, a feeding device and a gas heating device, is connected to the vortex connecting device through a guide pipe and is connected with the friction head. The device is clamped on a bearing, and the preparation steps of checking the stability and airtightness of the device, feeding and the like are carried out. The device can be used for additive manufacturing of single materials, gradient materials and composite materials. The device is simple in structure, high in automation degree, environment-friendly and easy to realize large-scale industrial production.

The invention discloses a manual tungsten-electrode argon arc welding process for a nickel alloy process pipeline. The manual tungsten-electrode argon arc welding process comprises the following steps: A, preparation before welding; B, fitting up; C, tack welding; D, examination before welding; E, manual welding, wherein a direct current straight polarity forehand welding is employed for multi-pass vertical-up welding, and the step E comprises the following substeps: E1) determining welding process parameters; E2) determining a welding position, an arc starting position and a welding direction of backing welding; E3) backing welding; and E4) forming a second layer of deposited metal and a rear layer of deposited metal on a backing welding deposited metal pass; F, examination of various objective factors of welding in the welding process; and G, examination after welding. When a grade N08825 nickel alloy process pipeline is welded by use of the welding process, such advantages as beautiful weld joint appearance, even weld lines, small heat input amount, dense structure, stable weld joint quality and low welding difficulty can be achieved.