115results about How to "Simple welding process" patented technology

The invention discloses a vision-based weld defect detection method and system, and relates to the technical field of weld defect detection, and the method comprises the steps: adjusting welding parameters when scene environment data in a welding region is monitored and obtained to be inconsistent with expectation; after heat distribution data of the welding part is collected, a distribution abnormal value is generated, whether the distribution abnormal value exceeds the expectation or not is judged, if yes, welding defects of the welding part are predicted, and welding process parameters are optimized according to predicted data; after surface defect data of the welding part are recognized and obtained, internal defects of the welding part are detected, and simulation test data are obtained after the performance of the welding part is tested; and taking the surface defect data, the internal defect data and the simulation test data as feedback, and giving a corresponding process optimization scheme through the welding process optimization knowledge graph. The current welding defect is subjected to preliminary defect detection, the detection result can be quickly obtained, and whether the welding position has the welding defect at present or not is verified.

The invention provides a ceramic rigid-flex circuit substrate and a preparation method thereof, and the method comprises the specific steps: S1, cleaning a ceramic substrate, and arranging a brazing metal transition layer on the surface of the ceramic substrate; s2, low-melting-point brazing filler metal is sprayed to the surface of the brazing metal transition layer of the ceramic substrate, and a multi-layer flexible circuit board is attached to the surface, sprayed with the low-melting-point brazing filler metal, of the aluminum nitride ceramic substrate to obtain an attached plate; and S3, placing the laminated board in a vacuum or protective atmosphere for welding to obtain the ceramic rigid-flex circuit substrate. The ceramic substrate is adopted, the brazing metal transition layer is introduced to the surface of the ceramic substrate, the welding process of the flexible circuit board and the ceramic substrate is optimized, the problems that heat conduction is difficult, interface thermal resistance is large and uneven or bonding strength is insufficient are effectively solved, and the overall performance and quality of a product are improved.

The invention discloses a butt weld welding process for a narrow space of a compact fusion reactor. The butt weld welding process comprises the following steps: (1) performing groove processing on a welding part of a workpiece and a rhombic compensation block; (2) the workpieces are relatively fixed, a rhombic compensation block is placed at the welding position, the welding seam gap between the rhombic compensation block and the adjacent workpiece is 0-4 mm, and the alignment tolerance of the two workpieces is 0-15 mm; (3) positioning and welding are carried out at the midpoints of the transverse welding seam and the longitudinal welding seam of the rhombic compensation block; (4) backing welding of transverse welding seams and longitudinal welding seams is conducted in an alternate stacking mode; (5) filling welding of transverse welding seams and longitudinal welding seams is conducted in an alternate stacking mode; the diamond compensation block is used for connecting the two workpieces in butt joint, the Y-shaped welding seam is formed through the machined groove, the compensation angle is achieved, the swing welding space and the welding view of manual welding in a narrow space are enlarged to a great extent, the operation difficulty and the labor intensity are reduced, and the welding seam quality is improved.

The invention discloses an integer slot concentrated full-pitch flat wire winding structure and a flat wire motor, and relates to the technical field of motors. Each branch of each phase of the integral-slot concentrated whole-pitch flat wire winding structure comprises one or more coil units, each coil unit is composed of four coil groups, each of the first coil group and the third coil group comprises a same-layer hairpin, the second coil group comprises N / 2-1 cross-layer hairpins, and each cross-layer hairpin comprises N / 2-1 cross-layer hairpins. The two effective conductors of the cross-layer hairpin are located on the adjacent layers of flat wires in different grooves, the fourth coil assembly is obtained by rotating the second coil assembly by m stator grooves in the circumferential direction, and m is the phase number of the winding motor. According to the invention, the stator adopts an integral pitch winding and is matched with a concentrated winding scheme that the number of slots per pole per phase is 1, so that the motor can obtain the maximum winding coefficient; only N / 2 + 1 types of hairpins are needed, and the types of the hairpins are reduced, so that the purposes of reducing the processing difficulty, the assembly complexity, the manufacturing cost and the maintenance difficulty of the flat wire winding are achieved.

The invention provides a perovskite crystal silicon laminated cell and a preparation method, the laminated cell comprises a perovskite top cell and a crystal silicon bottom cell, an overlapping area of the two cells is a working area of the laminated cell, and a non-overlapping area of the two cells is a non-working area of the laminated cell; and a top electrode welding strip and a bottom electrode welding strip are arranged at the bottom of the crystalline silicon bottom battery, correspond to the non-working area and are respectively connected with the perovskite top battery and the crystalline silicon bottom battery through a top electrode and a bottom electrode which are independent from each other. The top electrode and the bottom electrode are led to the same side of the laminated cell, so that the welding process of the laminated cell assembly can be simplified, and the preparation efficiency is improved; the positions of the top electrode welding strip and the bottom electrode welding strip correspond to the non-working area of the laminated cell, so that high temperature at a welding spot can be effectively prevented from directly contacting the working area of the laminated cell.

The invention discloses a double-gun symmetrical back-gouging-free welding method for engine base parts of a marine engine. The double-gun symmetrical back-gouging-free welding method comprises the following steps that firstly, the engine base parts are assembled; secondly, rivet welding fixing is conducted; thirdly, backing welding is conducted; 4, filling and cover surface welding are carried out; and after bottoming welding is completed, the engine base part is hoisted to a welding station, and corresponding filling and cosmetic welding are carried out at the flat welding position. The back-gouging-free welding method is reasonable in overall design and easy and convenient to operate, back-gouging-free welding can be achieved for welding of the bearing seat and the transverse web part, the welding process is simplified, the welding efficiency is improved, the production period is shortened, meanwhile, the machine seat part is not prone to deformation in the welding process, the welding quality is guaranteed, and the production cost is reduced. And great convenience is brought to the welding work of the engine base part.

The embodiment of the invention discloses a quartz glass and sapphire welding method, a quartz glass and sapphire welding system comprises laser welding equipment, the laser welding equipment is provided with a welding area, and the quartz glass and sapphire welding method comprises the steps that the surface of quartz glass and the surface of sapphire are cleaned; the quartz glass and the sapphire are stacked in a welding area of laser welding equipment so that the to-be-welded face of the quartz glass can be attached to the to-be-welded face of the sapphire; laser generated by the laser welding equipment is controlled to penetrate through the quartz glass, and the to-be-welded face of the sapphire is subjected to surface activating treatment; and laser welding equipment is controlled to weld the to-be-welded surface of the quartz glass and the to-be-welded surface of the sapphire subjected to surface activation treatment. Surface activation and welding can be carried out after the quartz glass and the sapphire are stacked in the welding area of the laser welding equipment, welding can be directly carried out after surface activation is completed, additional procedures or materials do not need to be added, and the welding technological process is simplified.

The invention relates to a cylindrical battery top cover assembly and an assembling method thereof, and a battery cell comprising the top cover assembly. The top cover assembly comprises a T-shaped pole terminal, an upper plastic part, a top cover sheet, an inclined plane sealing ring, a lower plastic part, a compression ring and a confluence disc, the disc part provides a wide welding surface, the cylinder is used for connecting the compression ring and the confluence disc, and the welding reliability and stability are enhanced. And the compression ring and the confluence plate are sleeved on the cylinder of the pole terminal and are firmly connected with the pole terminal in a laser welding manner. The design of the inclined plane sealing ring enables the sealing ring to distribute stress more uniformly when the sealing ring is stressed, sealing failure is avoided, the assembly method comprises the steps of stacking the assemblies, applying pressure to the confluence plate to compress the sealing ring, and welding the compression ring, the confluence plate and the pole terminal in the state that the sealing ring is compressed, so that efficient and stable connection among the assemblies is realized, and the assembly efficiency is improved. Therefore, the sealing performance, the electrical connection reliability and the long-term stability of the battery are improved.

The invention discloses a 800MPa-grade steel plate with ultralow cost and excellent weldability and a manufacturing method thereof. The 800MPa-grade steel plate comprises the following components in percentage by weight: 0.050-0.090% of C, less than or equal to 0.10% of Si, 1.60-2.00% of Mn, less than or equal to 0.013% of P, less than or equal to 0.0030% of S, 0.25-0.60% of Cr, 0.030-0.060% of Nb, 0.008-0.016% of Ti, 0.0008-0.0018% of B, 0.030-0.070% of Als, less than or equal to 0.0055% of N, 0.001-0.0040% of Ca and the balance of Fe and inevitable impurities. (% Als) / [(% N)-0.292 (% Ti)] is greater than or equal to 33; (% C) * [0.85 (% Mn) + 1.19 (% Als) + 9.33 (% P) + 12.05 (% S) + (% Si)] < = 0.16; and in Ca treatment, the Ca / S ratio is 1-3, and (% Ca) * (% S) is less than or equal to 1.5 * 10 <-3 >. On the basis that precious alloy elements such as Cu, Ni and Mo are not added, the high strength of 800 MPa is obtained at ultra-low cost, meanwhile, the toughness and weldability of the steel plate are also excellent, preheating is not needed before welding, stress relief heat treatment is not needed after welding, and the steel plate is particularly suitable for large steel structures and equipment such as engineering machinery and coal mine machinery.

The invention relates to the technical field of constructional engineering such as subways and tunnels, in particular to a latticed column water stop construction method. The technological process mainly comprises the steps of preparation before construction, pile head elevation treatment of a cast-in-place pile 2 below the latticed column, pile head waterproof treatment, machining of inner and outer water stop pieces, welding of the inner and outer water stop pieces, brushing of the water stop pieces and the latticed column with cement for capillary crystallization and construction of a bottom plate structure. The problem that underground water rises along the latticed column to penetrate through the structure is solved, a waterproof closed loop is formed, the underground water is prevented from rising along the latticed column to rust a structure body, the durability of the structure is improved, and the waterproof performance is improved.

The invention relates to a steel-UHPC combined bridge deck based on combined tenon connecting pieces and a construction method of the steel-UHPC combined bridge deck. The steel-UHPC combined bridge deck comprises a steel bridge deck slab, a steel tenon plate, a reinforcing mesh and a UHPC thin layer. The steel tenon plate is vertically fixed to the top face of the steel bridge deck, and the top of the steel tenon plate is provided with a tenon-shaped unit protruding upwards. The steel bridge deck slab is covered with the reinforcing mesh, and the tenon-shaped units are inserted into grids of the reinforcing mesh and fixed to the grids. UHPC concrete is poured on the steel bridge deck, the steel tenon plate and the reinforcing mesh to form a UHPC thin layer. The novel combined tenon connecting piece is applied, the limiting requirement of a UHPC thin layer on the height of the connecting piece can be met, the shearing resistance, the pulling resistance and the rigidity are higher, the number of the connecting pieces is small, the number of single pieces is small, the number of welding spots is small, the deformability in the UHPC is higher, it is ensured that the steel bridge deck and the UHPC are tightly combined, and the long-term use performance is better.

This application relates to a battery pack side beam structure, a battery box, and electrical equipment, belonging to the field of power battery technology. The battery pack side beam structure is connected to the top cover plate of the battery pack. The battery pack side beam structure includes a box beam body and a connecting plate. The box beam body includes an inner beam plate and an outer beam plate, which are connected and fixed together. The connecting plate is connected to one end of the box beam body near the top cover plate and extends away from the inner beam plate. The connecting plate has riveting holes. The outer beam plate is inclined towards the end of the connecting plate and has an inclined plate forming towards the inner beam plate. The inclined plate, the inner beam plate, and the connecting plate together enclose a connecting cavity with an opening on one side. The battery pack side beam structure provided by this application can solve the problems of high cost and easily affected sealing effect at the connection position between the side beam and the top cover in the battery pack box body in the prior art.

The utility model relates to the technical field of compressors, and particularly discloses a novel large-diameter piston component of a reciprocating compressor. A main body structure of the piston consists of a shaft side piston body and a cover side piston body which are connected through matching of a positioning seam allowance. The shaft side piston body comprises a shaft side core shaft, an end plate, an outer ring, a rib plate and a hoisting screw hole, and the cover side piston body comprises a cover side core shaft, an end plate, an outer ring, a rib plate and a hoisting screw hole. And the piston component is accurately positioned through the matched installation of the cover side positioning spigot and the shaft side positioning spigot. The piston body is fixed through welding, and connection is ensured through a full-welding double-face fillet weld and an inverted-groove annular weld. After welding, the welding quality is detected by ultrasonic waves so as to ensure that the welding quality meets the standard requirement. The piston component has the effects of being simple in structure, convenient and fast to manufacture, accurate in positioning, firm in structure and controllable in welding quality, and the performance and stability of the reciprocating compressor can be effectively improved.

The invention relates to a surfacing powder cored welding wire which is wear-resistant and has extremely low thermal crack sensitivity, and is used for the surfacing powder cored welding wire which is wear-resistant and has extremely low thermal crack sensitivity at the severely worn parts of a circulating fluidized bed boiler; the powder core components of the surfacing powder cored welding wire and their mass percentage ranges are as follows: C 0.2-0.5%, Cr 8-16%, Mo 1-3%, Ni 0.5-2%, Ti 0.2-1%, Nb 0.2-1%, Mn 1-2%, B 0.5-1.5%, Si 1-2.5%, RE 0.1-0.5%, TiB2 5-15%, Nb2N 3-5%, NaF 0-2%, CaF2 0-3.5%, K2CO3 0-2.5%, and Fe balance.

The present invention provides a 500MPa solid welding wire for solving the welding porosity of galvanized sheet in the automobile industry. The weight percentage of the components of the solid welding wire is: C: 0.07-0.11%, Si: 0.30-0.70%, Mn: 1.00-1.35%, Cr≤0.30%, P<0.010%, S<0.005%, Ti: 0.03-0.08%, O≤0.004%, N≤0.002%, and the balance is iron and inevitable impurities. The 500MPa solid welding wire for solving the welding porosity of galvanized sheet in the automobile industry of the present invention determines the element composition range of C, Si, Mn, S, P and the like. The welding wire of the invention is used to weld 500MPa galvanized sheet, improve the welding porosity of galvanized sheet, the weld metal has excellent low-temperature impact toughness, the process performance of all-position welding is good, the weld surface is smooth and uniform, the weld bead morphology is beautiful, and it is suitable for welding 500MPa galvanized sheet.

The system comprises a safety protection system, the safety protection system comprises a safety fence, an electrical cabinet, a digital welding machine, a robot control cabinet, a welding robot, a two-axis positioner and a tool clamp are installed in the safety fence, a visual monitor is arranged on the safety fence, and a control cabinet and a monitoring displayer are arranged outside the safety fence. An industrial personal computer is installed in the control cabinet, an operation displayer is arranged on the industrial personal computer, and a code scanning gun is installed on the control cabinet. A PLC is installed in the electrical cabinet, an expert process library is loaded in the PLC, a pipeline used for conveying protective gas is connected to the digital welding machine, a tool clamp is arranged on the two-shaft positioner, a magnetic attraction clamp used for clamping an aluminum alloy guide pipe is arranged at one end of the tool clamp, and a connector ring used for clamping a pipe connector is arranged at the other end of the tool clamp. The welding process technological parameters of each aluminum alloy guide pipe can be solidified, it is ensured that the welding parameters in the welding process are consistent, and the one-time welding qualification rate is effectively increased.

The invention provides a 500MPa-grade low-slag gas shielded solid welding wire for the automobile industry. The welding wire comprises the following chemical components in percentage by weight: 0.11-0.16% of C, 0.12-0.12% of S, 0.12-0.12% of Cr, 0.12-0.12% of Cr, 0.12-0.12% of 0.50% to 0.70% of Si; mn: 1.00 to 1.35%; plt; 0.015% of the total weight; the content of S is 0.005 to 0.015 percent, and the content of Cr + Ni + Mult; 0.15% by weight; 0.20% or less of Cu; the sum of the mass fractions of all the components is 100%, and the content of the Cu element comprises a welding wire copper plating layer. The welding wire is small in welding spatter, good in electric arc stability and all-position operability, basically free of slag and free of cleaning after welding, attractive in weld joint forming, excellent in welding process performance and excellent in weld joint metal mechanical performance.

The invention provides a chromium-free flux-cored wire as well as a preparation method and application thereof, and relates to the technical field of flux-cored wires. A flux core of the flux-cored wire comprises, by mass, 1%-3% of zinc, 8%-15% of silicon iron, 6%-10% of graphite, 3%-7% of boron sulfide, 6%-10% of high-carbon ferromanganese, 1%-5% of rutile, 1%-2% of aluminum, 1%-2% of magnesium, 6%-12% of ferroniobium and the balance iron. According to the chromium-containing flux-cored wire, the technical problems that in the prior art, a chromium-containing flux-cored wire pollutes the environment and causes risks to human health in the production and use process are solved, and the technical effects of reducing environment pollution, avoiding the risks to human health and exerting better welding process performance are achieved.

The utility model provides a kind of shell-plate fin heat exchanger, comprising: shell, the shell is cylindrical and the inside is limited with heat exchange cavity, and at the opposite ends in the axial direction of shell is respectively provided with air inlet and air outlet with heat exchange cavity communication;And heat exchange core, the heat exchange core is arranged in the heat exchange cavity of shell, and at the opposite ends of heat exchange core is respectively provided with heat storage medium inlet and heat storage medium outlet, especially, the heat exchange core is plate fin heat exchange core, including alternately arranged multiple air fins and multiple heat storage medium fins and multiple partitions, wherein, air in air fin channel and heat storage medium in heat storage medium fin channel flow along different direction.The shell-plate fin heat exchanger has the advantages of good pressure-bearing capacity of shell-and-tube heat exchanger and high efficiency, compact structure of plate fin heat exchanger, and simplifies welding process, reduces equipment weight.

The utility model relates to the technical field of tin soldering equipment, in particular to vertical ultrasonic tin soldering equipment which comprises an ultrasonic transmitting head, an ultrasonic amplitude-change pole, an ultrasonic transducer and a tin furnace, ultrasonic vibration generated by the ultrasonic transducer is conducted to the ultrasonic amplitude-change pole, then the ultrasonic vibration is conducted to the ultrasonic transmitting head through the ultrasonic amplitude-change pole, and the tin furnace is connected with the ultrasonic transmitting head through the ultrasonic amplitude-change pole. And the ultrasonic transmitting head is positioned in the tin furnace and is in direct contact with the tin liquid, so that the tin liquid generates a cavitation effect. According to the vertical ultrasonic tin soldering equipment, scaling powder is not used in the whole process, generation of harmful gas and waste water pollution are avoided, the vertical ultrasonic tin soldering equipment is environmentally friendly, tiny air holes and air holes cannot be generated in the welding process due to the fact that the scaling powder is not used, the welding quality is higher, the welding process is simplified, the production efficiency is improved, and the production cost is reduced.

The present invention discloses a nickel-chromium-molybdenum series nickel-based welding rod for welding liquefied natural gas (LNG) storage tanks, comprising a welding core and a coating, wherein the coating is pressed onto the surface of the welding core; the present invention improves the mechanical properties of the welding rod by enriching the coating with alloy elements such as chromium, molybdenum, manganese, niobium and tungsten for transition to the weld metal; adopts a new type of pure smelting technology to effectively control the content of impurity elements such as sulfur and phosphorus in the pure nickel welding core, and after rolling, drawing and coating, the welding rod has excellent processability for welding 9 nickel steel, the formed deposited metal and the weld area of ​​the weld joint have excellent low-temperature toughness, and various mechanical performance indicators such as tensile strength, low-temperature impact and three-point bending fully meet national standards.

The invention discloses a welding method of a titanium-steel bimetal composite structure and application of the welding method, and relates to the technical field of welding. The titanium-steel bimetal composite structure comprises a steel layer and a titanium layer, according to the welding method, the stepped U-shaped groove is designed in the steel layer, the titanium layer at the bottom is completely exposed, and contact between titanium and steel is completely isolated while full fusion of a welding seam is achieved; and besides, the U-shaped groove of the to-be-welded part is welded in a butt joint mode, mutual fusion between layers is effectively prevented through the reasonable and feasible welding sequence and the optimized welding technology, and therefore formation of Fe-Ti compounds between brittle metal is restrained, and the strength of the titanium steel composite structure connector is improved. The titanium-steel double-metal composite structure manufactured through the welding method is expected to be popularized and applied in the fields of marine equipment and petroleum.

The invention belongs to the technical field of welding materials, and particularly relates to a nickel-chromium-molybdenum alloy welding rod and a preparing method and using method thereof.The welding rod comprises a core wire and a coating, and cladding metal of the welding rod comprises, by weight, 0.03%-0.05% of C, 0.4%-0.7% of Mn, 15.5%-15.8% of Cr, 5.7%-5.9% of Ni, 0.8%-0.95% of Mo, smaller than or equal to 0.30% of Si, smaller than or equal to 0.020% of S, smaller than or equal to 0.030% of P and the balance Fe and inevitable impurities. According to the welding rod, the welding performance and various mechanical properties of the welding rod can be properly adjusted by adjusting the content of nickel, chromium and molybdenum, so that the welding rod can meet various heat treatment modes after welding, and the adaptability and universality of the welding rod are improved.

The invention relates to a light emitting balance design method of a double-sided light emitting LED light source module in the technical field of intelligent manufacturing, and the method comprises the steps: adjusting the parameters of an optical processing structure in a substrate according to the intensity distribution of light emitted from the front surface, and obtaining the initial uniform data of the light distribution of the back surface; acquiring a scattering point coordinate set from the back light distribution preliminary uniform data, and determining a scattering angle adjustment value for uniform scattering optical properties of a substrate material to balance light intensity gradient distribution; heat conduction related parameters are extracted from the overall double-face light emitting equilibrium design model, heat flow distribution is simulated according to the heat dissipation thermal attribute of the light emitting diode chip, and welding process optimization points are determined; and according to the welding process optimization points, generating a module design blueprint, verifying the light emitting efficiency of the double-sided light emitting balance design model, and if an efficiency improvement index meets a preset threshold value, outputting complete solution data.

The FPC flat cable comprises a cable body, a first bonding pad, a second bonding pad, a third bonding pad and a fourth bonding pad, the cable body comprises a main body part, a base body part and an extension part, a first circuit structure is arranged in the cable body, the outside of the cable body is connected with a second circuit structure, and the extension part can be bent relative to the base body part. The first bonding pad is vertical to the second bonding pad; part of the base body part can be bent relative to the main body part, so that the third bonding pad and the fourth bonding pad face the same direction. According to the FPC flat cable, the cable with the low shielding requirement is arranged inside, the cable with the high shielding requirement is arranged outside for welding, the first circuit structure is used for supplying power to a camera and an LED device at the head end of an endoscope, the second circuit structure is used for transmitting clock signals, a data annunciator and the like, the cables are distinguished according to the shielding requirement, and the shielding requirement is met. And shielding setting is facilitated. The camera module and the endoscope which are connected by adopting the FPC flat cable also have the above advantages.

The present invention belongs to the technical field of welding materials, and specifically provides a high-toughness flux-cored welding wire, comprising a carbon steel sheath and a flux core filled in the carbon steel sheath, wherein the flux core comprises, by mass percentage, 30-38% TiO2, 5-8% feldspar, 3-5% smelting agent, 2-3% sodium fluoride, 2-5% Si, 13-17% Mn, 4-6% Mg, 2-4% Ni, 0.45-0.75% B, 0.02-0.04% C, and the balance is Fe. The high-toughness flux-cored welding wire provided by the present invention controls the contents of Ni, C, Mn, B and other alloy elements in the weld metal by adjusting the components of the flux sheath, so that the deposited metal has excellent impact toughness in both the welded state and the heat-treated state, and when CO2 gas shielded welding is adopted, the low-temperature impact absorption energy at -40°C is greater than 80J, the tensile strength is higher than 490MPa, the elongation is greater than 22%, and the mechanical properties are stable. Moreover, flux-cored welding wire can be used for all-position welding, with excellent welding process performance, stable arc and beautiful weld formation.

The invention provides a stainless steel pipe welder capable of preventing weld joint oxidation, and relates to the technical field of welding equipment, the stainless steel pipe welder comprises a welding assembly, a cover body part, a trailing part and a gas supply assembly, the trailing part comprises a lower groove part, a refrigeration sheet and an upper groove part, the opening of the lower groove part faces a stainless steel pipe workpiece, and a first channel is formed between the lower groove part and the workpiece; the upper groove piece is fixedly connected to the side, away from the workpiece, of the lower groove piece, and a second channel is formed. The refrigeration sheet is clamped between the lower groove piece and the upper groove piece, the cold end faces the lower groove piece, and the hot end faces the upper groove piece; when protective gas in the cover body part flows to the trailing part, first protective gas and second protective gas are formed, and the first protective gas flows through the first channel, exchanges heat with the cold end of the refrigeration sheet and then is cooled, so that the dual functions of protection and cooling are realized; and the second protective gas flows through the second channel, exchanges heat with the hot end of the refrigeration sheet, and drives the outside air to perform forced heat dissipation on the hot end by utilizing the gas disturbance effect.

The invention provides a palm-shaped blank shaping device, and belongs to the technical field of palm-shaped bionic mold manufacturing. The palm-shaped blank shaping device comprises a base, a lower die, an upper die and a shaping unit, the lower die is mounted at the top of the base, and after the lower die and the upper die are closed, the first through groove and the second through groove define a shaping channel used for being matched with a palm-shaped blank; the shaping unit comprises an extrusion head and a linear driving unit, the extrusion head is connected with the power output end of the linear driving unit, the extrusion head can enter the shaping channel under the driving of the linear driving unit, and the extrusion head is a rotary body; the extrusion head is configured to enter the cavity of the palm-shaped blank from the wrist opening of the palm-shaped blank under the driving of the linear driving unit and shape the peripheral wall of the wrist opening, and the palm-shaped blank shaping device can shape the wrist opening of the palm-shaped blank into a perfect circle. And therefore, the welding process can be conveniently performed by adopting rotary friction welding subsequently.

The invention belongs to the technical field of neutron diffraction and stress measurement, and discloses a device and method for measuring in-situ stress in a myriawatt laser welding process based on a neutron source, and the device comprises a medium and thick wall component high-power welding module, an infrared thermometer, a mobile rotating platform and a neutron diffraction module, the medium-thickness wall component high-power welding module is installed on a box body of the in-situ measuring device, the medium-thickness wall component is arranged on the movable rotating platform, and the neutron diffraction module is arranged on the periphery of the in-situ measuring device. When the device is used, the movable rotating platform is adjusted to move a given point of a to-be-detected component to a position determined by the slit and the slit which are close to mutually vertical paths, so that a neutron beam passes through the given point of the component through the slit. Diffraction characteristic signals of different positions of the component are obtained through neutrons, online coupling of a component welding device and a neutron source is achieved, the stress field evolution law in the medium-thick-wall component cooling process can be detected in situ in real time, and the purpose of detecting and regulating the residual stress of the component in situ is achieved.

The invention discloses a hydraulically-driven valve element locking and dismounting device, belongs to the technical field of diaphragm pump assembling tools, and particularly relates to a quick locking and dismounting device for a diaphragm pump fluid end valve element. The hydraulic drive valve element locking and dismounting device is convenient to use, reduces the labor intensity and improves the working efficiency. The device comprises a frame and is characterized in that a horizontal moving tray is arranged at the bottom in the frame, and a positioning groove matched with a valve element is formed in the horizontal moving tray; a lifting adjusting support is arranged at the top of the frame, a clamping groove is formed in the middle of the lifting adjusting support, a limiting plate is correspondingly arranged above the clamping groove, a locking mechanism matched with the upper end of the valve element is arranged on the limiting plate, and a power head matched with the locking mechanism is arranged above the locking mechanism.