68results about How to "Meet environmental needs" patented technology

The invention relates to a high driving range all-electric logistics vehicle structure. Refitting is carried out through a microcalorie chassis 1, a power battery pack is composed of a large battery box and two small battery boxes, and a vehicle-mounted battery charger and a DC-DC converter are of an integrated structure to form an integrated component 21; the front battery box 2 is installed under a cab, and a vehicle control unit 27 is installed below a copilot seat; a driving motor 5, a driving motor controller 20, a high voltage distribution box 19, the integrated component 21 and an electric vacuum pump are installed below the chassis; the front battery box 2 is installed behind a front bridge, the driving motor 5 is installed between a beam II and a beam III, the second rear battery box 13 and the first rear battery box 23 are installed between the beam III and a beam IV through a rear battery box rear support 22, and a rear support 16 is installed between a beam V and a beam VI. By means of the high driving range all-electric logistics vehicle structure, an electric logistic vehicle has the advantages of being high in driving range, safe and stable in driving and large in vehicle capacity.

The invention relates to a bird song detection based bird preventing platform for a transmission line. The platform comprises a bird preventing windmill contraction device, a speech recognition chip, a robot main body and an ultrasonic detection sensor, wherein the speech recognition chip is used for detecting types of bird songs nearby the transmission line; the bird preventing windmill contraction device is used for controlling contraction or pushing-out of a bird preventing windmill main body; the robot main body is carried on the transmission line, connected with the bird preventing windmill contraction device, the speech recognition chip and the ultrasonic detection sensor respectively, and used for controlling operation of the bird preventing windmill contraction device according to a detection result of the speech recognition chip; the ultrasonic detection sensor is used for detecting the distance of a barrier at the transmission line in front of the robot main body. With the adoption of the platform, birds harmful to the transmission line can be accurately and effectively prevented from staying nearby the transmission line.

The embodiment of the invention discloses a method capable of inducing an incoming call of a mobile phone and performing reminding processing. The method comprises the following steps of: inducing an electromagnetic wave generated by the incoming call of a mobile terminal and transmitting an electromagnetic wave signal to a digital signal processor (DSP) chip for processing; performing filtering processing on electromagnetic wave information by using the DSP chip and analyzing whether the electromagnetic wave is the electromagnetic wave generated by the incoming call of the mobile terminal or not; and if judging that the electromagnetic wave is the electromagnetic wave generated by the incoming call of the mobile terminal, transmitting the judging result to a central processing unit where a display screen is positioned, and reminding a user of the incoming call. The embodiment of the invention also discloses a system capable of inducing the incoming call of the mobile phone and performing the reminding processing. By implementing the method and the system, the user cannot ignore the incoming call of the mobile phone when focusing on a television program excessively, so that the loss caused by missing an important business incoming call or other important incoming calls can be avoided.

The invention discloses a method for feeding dairy cows by using a micro-ecological fermentation bed. The micro-ecological fermentation bed is arranged in a dairy cow living quarter and a pit of which the size is equal to that of the dairy cow living quarter, wherein the depth of the pit is between 0.6 and 1.2 meters; and a padding prepared by fermenting an organic material and a compound microbial agent is arranged in the micro-ecological fermentation bed. The method has the advantages of high capability of decomposing wastes such as dairy cow mature and the like and capabilities of meeting the environmental requirement of the growth of the dairy cows, improving the disease resistance of the dairy cows and remarkably lowering feeding cost.

The invention provides an automatically opened and closed rainwater grate. The automatically opened and closed rainwater grate comprises a rainwater grate module and a control circuit controlling opening / closing of the rainwater grate; the movable baffle of the rainwater grate module is embedded with or released from every drainage port of a grate component through protruded units to achieve opening and closing of the rainwater grate, which are driven by a driving device; the control circuit is used for controlling connection and disconnection of a rainfall control circuit and a fine weather control circuit according to detected rainfall signals to achieve control over forward or backward rotation of the motor of the driving device as well as automatic opening and closing of the rainwatergrate. The automatically opened and closed rainwater grate can ease the condition of clogging of drainage pipes and achieve good drainage effects.

The present invention provides an automatic audio / video control system designed to control an audio / video output device; the audio / video output device can at least produce a video source or audio source; the automatic audio / video control system comprises an ambient sensor designed to sense the intensity of signals from the video / audio source and output audio / video sensing signals, and an audio / video analyzer, which is electrically connected to the ambient sensor and the audio / video output device and designed to output audio / video control signals according to the audio / video sensing signals to regulate the intensity of the audio / video source. The control system sense variations of the ambient environment by means of the ambient sensor, analyzes and compares with the internal signals in the system, and output appropriate feedback signals to regulate the intensity of the audio / video source of the audio / video output device automatically, so as to attain best audio / video effect. The control system meets people's demand for easy use, environmental compatibility, and individualization for electronic products.

The invention provides a water-cooling containment simulation device, which comprises a containment body, wherein the containment body comprises an upper seal head, a cylinder body and a lower seal head, the upper seal head, the cylinder body and the lower seal head are sequentially combined to form a sealed space inside the containment body; a water jacket body end plate is arranged on the cylinder body and fixes a water jacket body outside the cylinder body; a cooling water inlet pipe and a cooling water outlet pipe are arranged on the water jacket body, so that cooling water flows into and out of the water jacket body. Therefore, the cooling water flows into and out of the water jacket body to take away heat produced in the containment body, thus the water cooling effect of the reactor containment is simulated.

The invention discloses an intelligent temperature measuring and transporting robot. The intelligent temperature measuring and transporting robot comprises a driving base, wherein a supporting box ismounted at the top end of the driving base, storage boxes are movably mounted on the outer surface of the front end of the supporting box through sliding rails, reserved grooves are formed in the outer surfaces of the top ends of the storage boxes, and electric extendable rods are mounted at the rear ends of the storage boxes. According to the intelligent temperature measuring and transporting robot, firstly, a thermal imager is mounted at the front end of a rotating head so that temperature measuring can be carried out on multiple persons at the same time, and the temperature detecting efficiency is improved; secondly, a camera is mounted at the front end of a detector so that the faces of users can be shot and recognized, then, shot facial data is compared with previously-entered facialdata so that articles can be prevented from being mistakenly taken, and the accuracy of the article distribution is improved; and thirdly, a temperature control device is mounted in the supporting boxso that drugs inside the different storage boxes can be temperature-controlled and stored, and the requirement of the special drugs on the environment is met.

The invention relates to a portable device assisting a switch cabinet to get in position. The device comprises a hydraulic mechanism consisting of a main oil cylinder, a return oil cylinder and an oil storage cylinder which are integrally arranged in a horizontal '-' shape; one end of a piston rod of a piston installed in the return oil cylinder extends out of the end part of the return oil cylinder, the main oil cylinder is provided with a manual power element; the tail part of the oil storage cylinder is provided with a joint which is connected with extension rods by bolts, the tail part of the extension rod is provided with a skid-proof seat; the piston rod is a hollow tube which is screwed with an adjusting screw rod through internal screw threads, extension rods are all hollow tubes and are connected into a whole by the bolts. The invention plays an assistant role for installing large electric devices, installation persons can very conveniently adjust the horizontal displacements of the large electric devices, such as centrally-mounted switch cabinets, a protection screen and the like, thereby the installation quality of the electric device is ensured and potential safety hazards are eliminated.

The invention relates to a power transmission line bird-preventing platform based on birdsong detection. The bird-preventing platform comprises bird-preventing windmill retracting equipment, a voice recognition chip, a robot body and an ultrasonic detection sensor, wherein the voice recognition chip is used for detecting the type of birdsong near a power transmission line; the bird-preventing windmill shrinkage equipment is used for controlling retract or pushout of a bird-preventing windmill body; the robot body is carried on the power transmission line, is connected with the bird-preventing windmill retracting equipment, the voice recognition chip and the ultrasonic detection sensor and is used for controlling operation of the bird-preventing windmill retracting equipment according to detection results of the voice recognition chip; the ultrasonic detection sensor is used for detecting the distance between the robot body and an obstacle on the portion, in front of the robot body, of the power transmission line. By means of the bird-preventing platform, it can be accurately and effectively avoided that flying birds harmful to the power transmission line stay nearby the power transmission line.

The invention discloses a method for increasing the population quantity of wild adoxophyes braconidae by suspending a rice moth larva container. The method comprises the following steps of (1) singlysuspending the rice moth larva container; (2) artificially releasing the adoxophyes braconidae, and suspending the rice moth larva container; and (3) inspecting a population of the adoxophyes braconidae. According to the method for increasing the population number of the wild adoxophyes braconidae by suspending the rice moth larva container, the adoxophyes braconidae in the field natural environment is trapped or the adoxophyes braconidae is trapped and artificially released by artificially suspending the rice moth larva container in the field, so that field parasitic hosts, propagation conditions and shelters are provided for survival of the adoxophyes braconidae, establishment of the field population of the adoxophyes braconidae is ensured, the number of individuals of the population isincreased, and the effect of biological pest control of parasitic wasps is achieved.

The invention discloses a general airplane tandem hybrid power system. The system comprises a generator, a rotor engine connected with the generator and used for driving the generator to generate power, a driving motor used for providing driving force for propellers and a power battery used for providing electricity for the driving motor. By means of the system, each item of performance indicatorof a general airplane is effectively met, energy consumption is saved, the environmental pollution is reduced, and energy crisis is relieved.

The invention discloses a diesel engine silencer used for high-power agricultural machinery, aiming at overcoming the problems of the prior art that the working efficiency of workers and the body health of people are affected. The silencer comprises a silencer air inlet pipe, a silencer shell, a No.1 micro-perforated panel, a micro-perforated pipe, an expansion chamber clapboard, a No.2 micro-perforated panel and a silencer exhaust pipe. The No.1 micro-perforated panel is arranged on the left side in the silencer shell and is welded with the inner wall of the silencer shell, the expansion chamber clapboard is arranged on the right side of the No.1 micro-perforated panel and is welded with the inner wall of the silencer shell, the No.2 micro-perforated panel is arranged on the right side of the expansion chamber clapboard and is welded with the inner wall of the silencer shell, the silencer air inlet pipe is arranged in a front center through hole of the silencer front end cover in the silencer shell, the right end of the silencer air inlet pipe is welded with the center part of the No.1 micro-perforated panel, two ends of the micro-perforated pipe and the No.1 micro-perforated panel are welded width the expansion chamber clapboard, and the silencer exhaust pipe is arranged and welded in a rear center through hole of the silencer rear end cover.

The hyperbolic shock insulating energy dissipater includes mainly one set of parallel separated base plates and bearing plates, and crossed tracks connected through connectors. It has hyperbolic hole and sliding shaft structures for locating and limiting in the connection parts. The present invention has shock insulating design and selective dampers, and thus can insulate horizontal and vertical vibration energy transfer and absorb vibration energy in simplified structure and reduced size.

The invention discloses a preparation method of a deep sea glass buoyage. The preparation method comprises the following steps: a) selecting a glass composition suitable for the deep sea environment, dosing according to the formula and melting into high-temperature molten glass; b) pouring the molten glass into a preheated mould, pressing with a punch and rolling to obtain a half glass buoyage, and quickly transferring the rolled half glass buoyage into an annealing furnace for annealing treatment; and c) performing follow-up processing and polishing of the moulded half glass buoyage to obtain a complete product. In the preparation method disclosed by the invention, the composition and specification / dimension of the glass buoyage can be determined according to different requirements of the ocean environment, and the prepared glass buoyage can meet the needs for different ocean depths and environments. The whole production process is simple and convenient to operate, the production efficiency is high, and the method is suitable for large-scale industrial production.

The invention relates to the technical field of hanging frames, in particular to an underground pipeline hanging frame system. The underground pipeline hanging frame system comprises a hanging seat and a pipeline clamp. A frame body is connected with the lower side of the hanging seat. The lower end of the frame body is connected with a rapid insertion device. The rapid insertion device comprisesa connection base, a plurality of wedge blocks, a locking sleeve and an unlocking sleeve. The wedge blocks are rotationally connected to the upper end of the connection base. The locking sleeve and the unlocking sleeve are sequentially and rotationally arranged on the outside of the outer circle face of the connection base in a sleeving manner from top to bottom and correspond to the wedge blocks.The pipeline clamp is inserted into the connection base from the lower end. The locking sleeve and the unlocking sleeve cooperatively rotate and drive the outer ends of the wedge blocks to rotate, sothat the inner ends of the wedge blocks rotate into or retreat out of the pipeline clamp, and then the pipeline clamp and the rapid insertion device are mutually locked or loosened. According to theunderground pipeline hanging frame system, by arranging the rapid insertion device, when the pipeline is assembled or disassembled, it is just needed to cooperatively rotate the locking sleeve and theunlocking sleeve, disassembling bolts is not needed on a construction site, rapid assembly and disassembly of the pipeline clamp can be achieved, and convenience and rapidness are achieved.

The invention relates to the technical field of environment monitoring. The LoRa wireless temperature and humidity monitor comprises a main control MCU, a temperature and humidity sensor and a LoRa wireless transmission chip, the temperature and humidity sensor is connected and communicated with the main control MCU through a serial port, and the LoRa wireless transmission chip is connected and communicated with the main control MCU through an SPI; wherein the LoRa wireless transmission chip is connected with the LoRa base station through the LoRa WAN gateway, and the LoRa base station is communicated with the monitoring center server through WIFI to realize monitoring; according to the invention, the LoRaWAN network is mainly used for data transmission. The detector adopts the MCU + LoRa+ temperature and humidity sensor mode design, the main control chip sends data collected by the sensor out through the LoRa chip, the data are uploaded to the background through the LoRa base stationand finally sent to the monitoring mechanism to be used for monitoring the environment temperature and humidity so as to meet special environment requirements, and high creativity is achieved.

The invention discloses an automatic harmful gas monitor in a residential environment, comprising a harmful gas monitor which is connected with a front-end processor through a communication network; the front-end processor is connected with a central management mainframe with a function of acousto-optic alarm; and the harmful gas monitor is connected with a controlling device of a ventilation device. The automatic harmful gas monitor in a residential environment is of reasonable structure and excellent working performance.

The invention provides a multi-version differentiated function customization implementation method for an application program, which comprises: obtaining a to-be-packaged application program source code, receiving a packaging command, and automatically generating a self-defined configuration file through configuration information in a gradle script according to the packaging command; executing thepackaging command to generate application program packages of different function versions, wherein the application program packages of different function versions comprise pre-configured function configuration files, and the function configuration file comprises each function configuration item content of different versions of application program packages; when the application program packages ofthe different function versions are operated, respectively reading the self-defined configuration file and the function configuration file, dynamically changing the behavior of the application program, and meeting the requirement for differentiated function customization of the multiple versions. The application programs of different versions can be packaged without manually intervening and modifying the configuration file, and the function difference of the application program software is dynamically realized.

The invention discloses a live bacterium cultivation and examination box for medical examination. The live bacterium cultivation and examination box comprises a box body, a cultivation box body is arranged in the box body, an aeration pipe is arranged in the cultivation box body, heat dissipation water pipes are arranged in the cultivation box body, heat dissipation fins are arranged on the heat dissipation water pipes, a culture medium mixing box body is arranged on one side of the cultivation box body, a fixed liquid pumping pipe is arranged in the cultivation box body, the upper end of thefixed liquid pumping pipe is connected to an electric push rod through a fixing frame, the upper end of the fixed liquid pumping pipe is connected to an examination box body through a rubber pipe, anexamination box water pump is arranged in the examination box body and is connected to the rubber pipe, and a display screen and a control keyboard are arranged on the surface of the examination box body. The live bacterium cultivation and examination box has the advantages that the live bacterium cultivation and examination functions can be achieved, different environmental conditions for the live bacterium can be maintained and adjusted, the environment requirements of different live bacterium can be met, on-line real-time detection can be realized, the control is convenient, and the use isconvenient and rapid.

The invention discloses a high-pressure gas generating device and a high-pressure accurate combustion characteristic testing system, and relates to the field of fuel premixed combustion characteristicresearch testing devices. The high-pressure gas generating device comprises a shell, a high-pressure cylinder body, a piston device and a purifying device, wherein the piston device is provided witha leather cup capable of reciprocating in the high-pressure cylinder body, actual atmosphere can be directly pressurized into high-pressure gas through the reciprocating motion of the leather cup, a cooling device is arranged inside the high-pressure cylinder body and the shell, and high-pressure gas which is high in pressure, clean and suitable for meeting the requirement of a fuel premixing characteristic research experiment can be directly generated in combination with the purifying device. The high-pressure accurate combustion characteristic testing system comprises a bullet containing bullet body, a high-pressure air inlet system, a gas fuel inlet system and a liquid fuel inlet system, and the blending combustion experiment of various gas fuels and liquid fuels can be achieved. The high-pressure air inlet system comprises the high-pressure gas generating device, and higher and more stable initial pressure for premixed combustion can be achieved.

The present invention discloses a space-saving orchard shelter convenient for switching sun-shading and rain-sheltering functions. The space-saving orchard shelter convenient for switching sun-shadingand rain-sheltering functions comprises support rods, a rotating frame, tensioning steel cables, a winding mechanism and a sun-shading and rain-sheltering switching mechanism; the number of the support rods are plural; the rotating frame comprises a rotating shaft, two side rods and a cross rod; two ends of each tension steel cable are respectively fixed at an end of the cross rod and a top end of the corresponding support rod; the winding mechanism comprises a fixed pulley, a winding wheel component and a winding steel cable; and the sun-shading and rain-sheltering switching mechanism is arranged between the rotating shaft and the cross rod and can also realize the switching of the sun-shading and rain-sheltering functions. The single-side supporting sun-shading and rain-sheltering shelter saves spaces; and the sun-shading and rain-sheltering switching mechanism can realize switching of the sun-shading and rain-sheltering functions, different protection forms are selected according to different demands, when need not conducting sun-shading and rain-sheltering, the winding mechanism draws and lifts the rotating frame to form an opening structure, and the space-saving orchard shelter does not need demolishing after setting up and is excellent in use effects.

The invention relates to the technical field of excavators, in particular to an electric excavator. The electric excavator comprises a power mechanism, a swing mechanism, a steering mechanism, a traveling mechanism, a battery pack, and a central control module. The power mechanism is controlled by electrical power to effectively save hydraulic oil energy. The swing mechanism, the steering mechanism, and the traveling mechanism are correspondingly provided with hydraulic control modes and electric control modules to meet different operating environments and operating requirements. The hydraulicenergy can be reasonably saved without affecting the operation of the excavators.

The invention discloses an automotive brake pump side wiring harness protection box which comprises assembling fasteners, assembling fasteners, fixing holes, a wiring board, a guide groove, a lower wiring harness protection box cover and an upper wiring harness protection box cover. The assembling fasteners and the assembling fasteners are installed on two sides of the lower wiring harness protection box cover and two sides of the upper wiring harness protection box cover respectively, and assembly is achieved through 1 / 2 of the assembling fasteners. The wiring board is arranged at the tail end of the lower wiring harness protection box cover and used for fixing a wiring harness to the wiring harness protection box and preventing the wiring harness from moving and meanwhile is provided with a wiring trough for wiring of the wiring harness. After the upper wiring harness protection box cover and the lower and the wiring harness protection box cover are assembled, the wiring harness protection box is fixed to a fireproof wall through the fixing holes and is prevented from moving. The automotive brake pump side wiring harness protection box has the advantages of being convenient to use, simple in structure, excellent in fixing effect and protection effect and low in cost.

The invention discloses an outboard pre-operation platform of an LNG ship enclosure system. The pre-operation platform comprises a material storage and transportation platform, a constant-temperatureand constant-humidity room and a cabin entering platform; the material storage and transportation platform is arranged at the position, directly facing the temporary process hole, outside an LNG cabin; the constant-temperature and constant-humidity room is arranged on the material storage and transportation platform; and the cabin entering platform is in communication with the constant-temperatureand constant-humidity room and the temporary process hole. According to the outboard pre-operation platform of an LNG ship enclosure system, a reliable outboard constant-temperature and constant-humidity enclosure system pre-operation environment is provided, and the construction is more efficient and safer.

The invention discloses a pre-emphasis drive circuit based on a cascade pseudo-differential structure. The drive circuit comprises a biasing circuit, a first MOS transistor, a second MOS transistor, athird MOS transistor, a fourth MOS transistor, a fifth MOS transistor, a sixth MOS transistor, a seventh MOS transistor, an eighth MOS transistor, a ninth MOS transistor, a tenth MOS transistor, an eleventh MOS transistor and a twelfth MOS transistor, wherein all the first MOS transistor, the second MOS transistor, the third MOS transistor, the seventh MOS transistor, the eighth MOS transistor and the ninth MOS transistor are P-type MOS transistors; all the fourth MOS transistor, the fifth MOS transistor, the sixth MOS transistor, the tenth MOS transistor, the eleventh MOS transistor and thetwelfth MOS transistor are N-type MOS transistors. The drive circuit provided by the invention has the advantages that output flexibility is high on the basis of a simple circuit structure, differentpre-emphasis voltage drive signals can be output as needed, and different environment requirements are met.

The invention belongs to the technical field of head bands, and particularly relates to a micropore ventilation head band for a mask. The micropore ventilation head band comprises a connecting belt, afirst bandage and a second bandage; the connecting belt is in an arc shape, one end of the connecting belt is connected with one end of the first bandage, the other end of the connecting belt is connected with one end of the second bandage, a nylon buckle is connected to the port of the end, away from the connecting belt, of the first bandage, a nylon buckle is arranged at the port of the end, away from the connecting belt, of the second bandage, the nylon buckle is directly buckled on the mask, the connecting belt, the first bandage and the second bandage are integrally molded, a first auxiliary belt is arranged at the middle section of the first bandage, a nylon buckle is arranged at the end, away from the first bandage, of the first auxiliary belt, a second auxiliary belt is arranged at the middle section of the second bandage, a nylon buckle is arranged at the end, away from the second bandage, of the second auxiliary belt, the upper surfaces of the connecting belt, the first bandage, the second bandage, the first auxiliary belt and the second auxiliary belt are filled with micropores, and the pore diameter of the micropores is 0.2-0.5 mm.

The invention belongs to the technical field of fusion reactor penetration piece, and more specifically relates to a double-layer electrically-charged waterway penetration piece used on a fusion reactor atmosphere side. According to the double-layer electrically-charged waterway penetration piece, a first layer electrical isolation constraint structure is arranged in a second layer electrical isolation constraint structure concentrically to form an electrical isolation constraint structure; an insulation cavity is composed of the first layer electrical isolation constraint structure and the second layer electrical isolation constraint structure; the right end of the first layer electrical isolation constraint structure and the right end of the second layer electrical isolation constraint structure are arranged on a separating plate; the center of the separating plate is provided with a through hole; the left end of an external sleeve pipe is welded on the left side surface of the separating plate; the external sleeve pipe and the through hole on the separating plate are designed to be concentric; an ITER flange is provided with a plurality of bolt holes; the ITER flange is arrangedon a constraint barrier CP flange atmosphere side using ITER flange fastening bolts; a fourth ceramic tube is arranged in the external sleeve pipe; the left end of the fourth ceramic tube is designedto pass through the separating plate center through hole, the first layer electrical isolation constraint structure, an ITER flange center through hole, and a CP flange center through hole, and stretch into a vacuum side; an electrically-charged water pipe is arranged in the fourth ceramic tube, and is used for communicating the vacuum side and the atmosphere side.

The invention relates to the technical field of circuit breakers, and concretely relates to a transmission position detection structure of a miniature automatic reclosing circuit breaker. The transmission position detection structure includes a shell, wherein a circuit breaker main body is arranged in the shell 1; the circuit breaker main body comprises a driving motor, a PCB, a transmission gearand a circuit breaker handle mechanism. The circuit breaker handle mechanism comprises a handle gear, the driving motor is in transmission connection with a transmission gear through a gear transmission mechanism, a sensing gear which is coaxially arranged with the transmission gear is fixedly installed on the transmission gear, the sensing gear is meshed with the handle gear, and a switching-on and switching-off signal detection module is arranged in the shell. By arranging the opening signal detection module composed of a Hall switch and a microswitch, automatic switching can be carried outto work in high-temperature, high-humidity and high-intensity magnetic field environments, and the reliability and stability of the product are greatly improved.

The invention provides a manufacturing method of a steam generator forge piece for a sodium-cooled fast reactor. The manufacturing method comprises the following steps that a steel ingot raw materialis selected; the selected steel ingot raw material is smelted; the smelted steel ingot raw material is forged into the forge piece for forming a main body of the steam generator by using a forging process; heat treatment is carried out on the forge piece; and physical and chemical tests are carried out on the forge piece subjected to heat treatment, wherein the step that the smelted steel ingot raw material is forged into the forge piece for forming the main body of the steam generator by using the forging process comprises the step of carrying out a free forging process and a moulding bed forging process on the smelted steel ingot raw material. According to the manufacturing method of the steam generator forge piece, the forge piece which is complex in structure and can meet the environment requirement of the sodium-cooled fast reactor can be manufactured, so that a basic guarantee is provided for research, development and use of the sodium-cooled fast reactor steam generator.