1352 results about "Galvanization" patented technology

The invention discloses a machine vision-based intelligent detection method for steel galvanized surface defects, which comprises the following steps: S1, acquiring and preprocessing a steel galvanized surface image to obtain a standardized image; s2, constructing a specular reflection probability graph according to the brightness distribution and the gradient magnitude, and calculating a reflection intensity value; s3, calculating a structure tensor matrix, determining a main direction angle and an anisotropic consistency coefficient, and generating a direction feature matrix; s4, establishing a multi-scale direction adaptive phase kernel function, and performing phase modulation in a frequency domain by adopting an improved phase stretching transformation algorithm; s5, inverse Fourier transform is executed, and a phase response matrix is extracted; s6, performing weighted fusion to obtain a comprehensive phase response diagram; and S7, setting a threshold value according to the noise variance and the statistical characteristics, executing binarization and morphological processing, and outputting a defect region and boundary coordinates. According to the invention, high-precision identification and boundary positioning of steel galvanized surface defects are realized.

The invention discloses an intelligent evaluation method for coating adhesion of a hot-dip galvanized steel pipe, and relates to the technical field of intelligent quality control of galvanized steel pipes, and the method comprises the following steps: constructing a galvanization process time sequence multi-dimensional data set by fusing static attributes of a steel pipe, time sequence process parameters of a galvanization production process and coating thickness measurement data; based on an improved signal volatility analysis method, interface reaction dynamic characteristics and cooling process dynamic characteristics are extracted; implicit microstructure features are generated through a feature cross structure guided by material science and physical information; and realizing continuous numerical prediction and grade probability output of the adhesion of the plating layer by using the implicit space representation regression model based on the antagonistic auto-encoder. According to the method, interpretable mapping between the microstructure and the coating adhesive force in the galvanization process is achieved, the coating adhesive force prediction accuracy and evaluation reliability are improved, and a decision basis can be provided for process adjustment and quality risk pre-control in the production process.

The invention discloses an intelligent information acquisition method and system for a steel pipe galvanizing production line, and relates to the technical field of information acquisition optimization. An intelligent information acquisition system for a steel pipe galvanizing production line comprises a steel pipe galvanizing production information acquisition module and a steel pipe galvanizing production optimization module. According to the method, the metal vapor concentration, the iron-zinc alloy layer frequency spectrum signal and the zinc liquid temperature data are collected at high frequency, and the dynamic zinc explosion risk coefficient is quantitatively analyzed, so that real-time early warning of a potential zinc explosion event is realized; compared with a traditional method depending on macroscopic temperature or concentration observation, the zinc explosion risk can be recognized in advance, the occurrence probability of zinc explosion accidents is remarkably reduced, and production safety is improved; according to the system, galvanizing production parameters, galvanizing liquid components, production microscopic signals and steel pipe state data can be collected at the same time, full-process and multi-dimensional data coverage is achieved, information integrity is guaranteed, and a reliable basis is provided for production monitoring and analysis.

The invention discloses a zinc skin and zinc powder cleaning device for a galvanized sheet, which relates to the field of galvanized sheet coating cleaning, and comprises a zinc skin and zinc powder removing box arranged between an outlet of a sheet galvanizing cooling section and a tension roller, and two sheet guide parts symmetrically arranged in the zinc skin and zinc powder removing box, the supporting guide roller is arranged in the zinc skin and zinc powder removing box and located between the two plate guide parts, the swinging zinc removing device is arranged with the supporting guide roller as the circle center, and the zinc slag sucking and removing device and the air injection zinc removing device are further included. According to the device, the removal rate of zinc skin and zinc powder on the surface of the galvanized plate is high, meanwhile, zinc slag can be recycled in time, the removed zinc slag is prevented from secondarily polluting the plate surface, meanwhile, the tool bits which work alternately can prevent the tool bits from being overheated during continuous work, and the service life of the tool bits is prolonged.

A modular system for use in construction, including a first panel, placed vertically, and a second panel, placed horizontally, each provided with a galvanized reinforcement (3) filled with a layer of insulating material. The galvanized reinforcement includes a first net, a second net and a third net transversal to the other two nets to join them. The modular system further comprises an anchoring system between the first panel and the second panel. This anchoring system includes at least one first bracket inserted in the first panel and in the second panel at the respective first nets, and at least one second bracket inserted in the first panel and in the second panel at the respective second nets.

A galvannealed steel sheet includes: a cold-rolled steel sheet having a chemical composition containing Si in an amount of 0.1 mass % or more and 3.0 mass % or less; and a galvannealed layer formed on one or both surfaces of the cold-rolled steel sheet. An Fe-based electroplating layer is absent between the galvannealed layer and the cold-rolled steel sheet. In an emission intensity profile, a value of (ISi,Fe) / (ISi,bulk) is 0.90 or less, where (ISi,Fe) denotes an average Si intensity in a range from an interface between the galvannealed layer and the cold-rolled steel sheet to +0.5 μm towards the cold-rolled steel sheet, and (ISi,bulk) denotes an average Si intensity in the cold-rolled steel sheet. An average value of C concentration in a range of 10 μm to 20 μm in a thickness direction from the interface between the galvannealed layer and the cold-rolled steel sheet is 0.10 mass % or less.

The invention discloses an energy-saving type multifunctional galvanizing furnace for hot galvanizing, relates to the technical field of metal surface treatment, and aims to solve the technical problem that the galvanizing quality of a workpiece is affected due to the fact that the temperature of molten zinc on the surface of a current open type galvanizing furnace is unstable. The lifting mechanism is arranged at the top of the galvanizing furnace, the lifting mechanism comprises two cover plates for blocking an opening of the galvanizing furnace, a driving assembly for controlling the two cover plates to move in opposite directions and a hanging bracket for clamping and limiting a workpiece, and the hanging bracket can control the workpiece to ascend and descend through the displacement of the two cover plates. The driving assembly is used for controlling the two cover plates to move in the opposite directions, synchronous linkage of workpiece lifting is achieved, a furnace body opening can be tightly plugged in a non-operation state, the furnace body opening is automatically opened when workpieces are galvanized, the proper opening size can be automatically adjusted according to the sizes of the workpieces, the size of the furnace body opening is automatically adjusted, and the service life of the furnace body is prolonged. And heat loss is reduced, and the workpiece surface galvanizing quality is improved.

The present application relates to the technical field of automobile bolt plating, in particular to a hot galvanizing device for automobile bolts, which comprises a processing table, a galvanizing cylinder, a control case, a driving assembly, a lifting assembly and a hanging plate, etc., one side of the processing table is provided with a side plate, the arc-shaped groove on the side plate cooperates with the moving assembly driven by the first motor, so that the base is automatically at the lowest point in the loading and unloading stations, the galvanizing station is precisely aligned with the galvanizing cylinder, the bolts are independently hung through the annular frame, the hanging plate adopts a detachable clamping structure, the second motor drives the bolts to rotate at a constant speed, cooperates with the arc-shaped protrusions at the bottom of the galvanizing cylinder to make the bolts reciprocate and jump, and the lifting assembly controls the immersion depth of the bolts, the device solves the problems of bolt occlusion, collision and uneven plating in the traditional frame soaking process, and through the independent hanging, stable rotation and jumping design, the surface precision of the bolts and the uniformity of the plating layer are ensured.

The utility model belongs to the technical field of tunnel engineering construction, and discloses an assembly type corrugated steel plate preliminary bracing structure for a vertical shaft, which comprises an assembly type corrugated steel plate layer and a plurality of anchor rods, the assembly type corrugated steel plate layer is formed by splicing a plurality of corrugated steel plate units, and one end of each anchor rod is fixed on surrounding rock. The other end of the anchor rod is fixedly connected with the corrugated steel plate unit, and a grouting layer is filled between the assembly type corrugated steel plate layer and the surrounding rock, so that the complex links of material field processing, layered concrete spraying and the like are reduced, and the construction process is greatly simplified; in terms of construction pollution, a large amount of dust generated by sprayed concrete is avoided, the construction environment is improved, the corrugated steel plate layer cooperates with the anchor rod, the grouting layer, the reinforcing mesh and the like to form a stable supporting system, the arc-shaped corrugated steel plate body is attached to the surrounding rock, the zinc coating enhances corrosion resistance, and the foam pad improves the durability of the structure. The tunnel supporting target which is efficient, environmentally friendly, economical, stable and reliable is achieved on the whole.

The invention provides an intelligent control method and system for steel pipe galvanizing process equipment, and relates to the technical field of production intelligent control. The method comprises the steps of collecting a process operation original data set of galvanized steel pipe production and constructing a plurality of process order groups, generating a plurality of order state sequences and identifying a plurality of order fragments of each order state sequence, and constructing a qualified sample set and a risk sample set, extracting a plurality of statistical features respectively corresponding to each order fragment in the qualified sample set and the risk sample set, performing order type division on the plurality of order fragments, constructing a risk order set and a stable order set corresponding to the plurality of order fragments, traversing the qualified sample set and the risk sample set, and obtaining a stable order set; a plurality of candidate recovery paths of each order state sequence are constructed and fused to generate a plurality of process optimization motif libraries, and control optimization of the steel pipe galvanizing process equipment is achieved based on the process optimization motif libraries. The intelligent control level of the steel pipe galvanized product production process is improved.

The invention discloses a galvanized steel pipe surface characteristic prediction method based on process modeling, and relates to the technical field of intelligent manufacturing process optimization, and the galvanized steel pipe surface characteristic prediction method comprises the following steps: basic data acquisition, process state characteristic modeling, dynamic process diagram modeling, physical data dual-drive mixing and surface characteristic prediction. Adopting a derived feature construction method based on an embedded mechanism kernel equation to form process intermediate state variable enhanced data; by establishing a dynamic process diagram model, the state transfer and evolution process between steel pipe procedures is represented; a residual learning mechanism of a physical model and a data-driven model is combined, physical consistency constraint is introduced, a dual-drive fusion prediction framework is constructed, and multi-target surface characteristic hybrid prediction is realized; according to the method, high-precision and multi-target prediction of the characteristics such as the surface thickness, the adhesive force and the smoothness of the galvanized steel pipe is achieved, and the prediction stability and the physical interpretability under the complex galvanizing process are effectively improved.

The invention discloses a production method of a high-yield 1000MPa-grade ultrahigh-strength galvanized dual-phase steel strip. The production method comprises a smelting-continuous casting process, a hot rolling process, an acid pickling and cold rolling process, a continuous hot galvanizing process and a finishing process. The steel comprises the following chemical components in percentage by mass: 0.11%-0.15% of C, less than or equal to 0.40% of Si, 2.60%-2.85% of Mn, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.015%-0.060% of Alt, 0.10%-0.30% of Cr, 0.025%-0.040% of Nb, 0.010%-0.025% of Ti, 0.0008%-0.0020% of Ca, less than or equal to 0.0070% of N and the balance of Fe and impurities. The galvanized dual-phase steel strip which is high in yield, ultrahigh in strength and good in corrosion resistance and meets the characteristic requirements of safety, low energy consumption and light weight in the automobile industry.

The invention relates to a copper-aluminum-based anti-electromagnetic interference cable conductor with a multilayer composite shielding structure, which comprises a conductor core layer, and is characterized in that the conductor core layer comprises a central bearing core and an inner conductor, the central bearing core is formed by twisting aramid fibers and galvanized steel wires, the inner conductor sleeves the outer side of the central bearing core, and the inner conductor comprises three layers of aluminum alloy wires; the three layers of aluminum alloy wires are alternately and reversely twisted, the sliding nesting layer is arranged on the outer side of the inner-layer conductor in a sleeving mode, six copper-aluminum composite half pipes are spliced to form a complete circular ring, T-shaped sliding grooves are formed in the splicing positions of the adjacent copper-aluminum composite half pipes, two conductive sliding blocks are arranged in the T-shaped sliding grooves, the conductive sliding blocks are made of beryllium copper elastomer materials, and the heads of the conductive sliding blocks are provided with gold-plated heads. And the outer conductor sleeves the outer side of the sliding nesting layer and is formed by bunch-stranding annealed soft copper wires in the same direction. According to the invention, excellent bending resistance of the cable is realized, wire breakage of the conductor can be avoided under a repeated bending condition, a conductive path of the conductor core layer is kept continuous and stable in the whole process, and interruption of electric energy or signal transmission caused by bending is prevented.

The invention discloses a production method of a high-structural-strength insulating steel tape armored multi-core power cable. The power cable comprises a conductor unit and an insulating layer from inside to outside, wherein the conductor unit is formed by twisting and pressing a conductor with a copper base material, the conductor unit is wrapped outside the conductor, the overlapping rate of the conductor unit is larger than or equal to 50%, and the insulating layer is formed by semi-conductive ceramic silicone rubber and / or crosslinked polyethylene. The double-layer wrapping tape is composed of ceramic silicone rubber filling strips and assists the insulating core wires to be twisted into a cable and is of a filling structure; an inner sheath made of a ceramic silicone rubber material; the composite armor layer is composed of an inner-layer galvanized steel band and an outer-layer stainless steel band; the buffer layer is composed of an aramid fiber woven mesh or a ceramic fiber belt; and the outer sheath is composed of ceramic silicone rubber or a low-smoke halogen-free flame-retardant material of which the oxygen index is greater than or equal to 40. The cable is high in structural strength, good in temperature resistance and high in impact resistance, high-temperature mechanical locking is achieved through tension-controlled double-layer reverse wrapping, and the performance of the cable is greatly improved.

The invention discloses a quality detection device for galvanized steel pipe production, and relates to the technical field of testing or analyzing materials by measuring physical properties of the materials, and the quality detection device comprises an integral support frame, a transportation pipeline mechanism, a pipeline internal rotation detection mechanism, a propulsion transmission mechanism, an external detection mechanism moving part and a pipeline external detection mechanism, the conveying pipeline mechanism is installed at the bottom of the overall supporting frame, the pipeline internal rotation detection mechanism is connected with the propelling transmission mechanism and can stretch into the galvanized steel pipe body, and an external detection mechanism moving part is fixed to the top of the overall supporting frame. The pipeline external detection mechanism is connected with the external detection mechanism moving part and surrounds the outer side of the galvanized steel pipe body.

The invention relates to a copper-aluminum composite plate and a preparation method thereof, and belongs to the technical field of metal composite materials. The preparation method comprises the following steps: S1, carrying out microstructuring treatment on the surface of a copper plate to form a rough structure formed by micron-sized pits and bulges on the surface of the copper plate to obtain a microstructured copper plate; s2, depositing a zinc intermediate layer on the surface of the microstructured copper plate through a magnetron sputtering technology to obtain a galvanized copper plate; s3, the zinc middle layer of the galvanized copper plate is attached to the aluminum plate, and the copper-aluminum composite plate is obtained through hot pressing, rolling and heat treatment in sequence; the copper-aluminum composite board has excellent interface bonding strength and toughness.

The present application relates to a kind of aluminum alloy conductor, composite steel core aluminum stranded conductor and preparation method thereof, it is related to wire and cable technical field.The preparation method of aluminum alloy conductor includes: aluminum alloy rod is according to single pass less than 1.1 The drawing of 12 passes~15 passes is carried out, and the conductor is obtained;The conductor after drawing is heated to 160~170 ℃ and kept for 440~460 min, and then furnace cooling is obtained, to obtain aluminum alloy conductor.The composite steel core aluminum stranded conductor includes: the composite steel core of stranding structure, the aluminum stranded conductor layer of multiple stranding structures is included outside composite steel core;Composite steel core includes galvanized steel wire and the above-mentioned aluminum alloy conductor.Aluminum alloy conductor adopts more pass drawing process and specific heat treatment, has more excellent conductivity, yield strength, elongation and tensile strength.Prepared composite steel core aluminum stranded conductor with it can significantly reduce sag.

The invention belongs to the technical field of wire production, and particularly relates to a production process of a 95MnNbA steel wire for an ultrahigh-strength traction rope, which comprises the following steps: 1) taking a 95MnNbA steel wire rod as a raw material; 2) drawing a semi-finished product: performing circulating water cooling on a winding drum and a die box of a wire drawing machine in the drawing process, and controlling the temperature of a die to be lower than 90 DEG C; 3) heat treatment: ensuring that the wire temperature is in a range of 925-935 DEG C, and keeping the lead bath temperature in a range of 550-560 DEG C; 4) pickling the steel wire after heat treatment; (5) hot galvanizing, wherein the zinc temperature is controlled within the range of 450-460 DEG C; 11-12 passes are adopted for drawing of a wire drawing machine, the single-pass compression ratio of the first pass is controlled to be 15%-17%, the total compression ratio is controlled to be 85%-92%, the average compression ratio of all the passes is controlled to be 16%-18%, and a special wire drawing die is used as a wire drawing die of the last three passes.

The utility model provides a multi -section type prevents and arranges smoke air pipe, including galvanized air pipe, the both ends of galvanized air pipe are installed and air pipe fixed end board no.

The cage comprises a main body frame module which is composed of 80 * 80 * 6 mm galvanized square tube main beams arranged at intervals of 3 m along an arc line and 299 * 10 mm seamless steel tube core bearing columns, the underground burial depth is 6 m, and the overground height is 6.3 m; the safety protection module comprises a vertical face double-layer composite net composed of an inner layer 20 * 20 mm mesh polyethylene net and an outer layer 20 * 20 * 3 mm white steel protection net, and a top net pulled and reinforced by steel wire ropes. In the core function area, a tidal creek is reserved; the intelligent management module comprises a dome camera and a time control LED lamp; the underground foundation module is of a reinforced concrete pipe and gravel filling structure. The main body frame is matched with the underground foundation to form a high-strength support matched with the wetland, the height on the ground is 6.3 m, the physiological characteristics of the red-top crane are accurately matched, and take-off and escape are completely eradicated; the double-layer composite net realizes double protection of collision injury prevention and natural enemy prevention; retaining a tidal creek to guide autonomous foraging; and manual intervention is reduced through intelligent monitoring and illumination simulation.

The utility model relates to the technical field of high-pressure cleaning devices, and provides a high-pressure water cleaning device for a hot-dip galvanized steel plate. The water recycling pool is arranged on the surface of one side of the supporting frame, and a filtering plate is arranged in the water recycling pool; the water storage barrel is arranged on the surface of one side of the supporting frame, one end of the water storage barrel is provided with a high-pressure water pump through a water pipe, the high-pressure water pump is fixedly installed on the surface of the supporting frame, and a water spraying pipe is arranged on the inner wall of one side of the supporting frame. When a second driving motor on the surface of the connecting plate works, a first gear at the output end drives a second gear to rotate slowly, so that a galvanized steel plate on the surface is driven to rotate, and meanwhile, a sliding column on the surface of the second gear is embedded in a limiting ring in a sliding mode to conduct limiting work; and the surface of the galvanized steel sheet is comprehensively cleaned, and the working efficiency is improved.

A galvanized steel pipe groove rolling auxiliary supporting device belongs to the technical field of groove rolling machines and comprises a base, supporting legs, a telescopic mechanism, a platform and lateral supporting mechanisms, the supporting legs are arranged at the bottom end of the base, the base is connected with the platform through the telescopic mechanism, a first roller assembly is arranged at the top of the platform, and the lateral supporting mechanisms are arranged on the two sides of the platform. And the lateral supporting mechanism is provided with a second roller assembly. The levelness and the height of the platform can be conveniently adjusted, so that the platform is suitable for the complex construction ground and the machining requirements of steel pipes with different heights, the distance between the first rolling wheel and the second rolling wheel can be adjusted, so that the platform is suitable for machining of the steel pipes with different outer diameters, bottom constraint supporting is provided, and the machining efficiency is improved. Lateral constraint supporting is further provided, the stability of the steel pipe in the machining process is guaranteed, and therefore the groove pressing quality can be improved.

The utility model discloses an FFU operation inspection test frame, and relates to the FFU operation inspection technology field, the FFU operation inspection test frame comprises a support, the top end of the support is provided with an upper protection net, the support comprises a plurality of galvanized square tubes and a plurality of fixed angles, the galvanized square tubes and the fixed angles are welded and fixed, the number of the galvanized square tubes and the fixed angles is more than one, and the number of the upper protection net is more than one. A plurality of baffles are arranged on the back face of the support, a plurality of filters are arranged at the front ends of the baffles, a plurality of FFUs are arranged at the front ends of the filters, lead screws are arranged at the front ends, close to corners, of the baffles, and the lead screws and the baffles are welded and fixed. The problems that short circuit or poor contact, fire and the like may be caused by factors such as heat and line connection during long-term operation, long-term verification is often carried out on a ceiling keel frame, the verification mode is troublesome in installation, and problems are not easy to deal with in the first time after occurring are solved.

The present application relates to a hot-rolled steel sheet and a galvanized steel sheet comprising same, and a method for manufacturing a hot-rolled steel sheet and a method for manufacturing a galvanized steel sheet comprising same. According to the present application, it is possible to provide a hot-rolled steel sheet having high strength and excellent ductility without performing rapid cooling, a galvanized steel sheet comprising same, and a method for manufacturing a hot-rolled steel sheet and a method for manufacturing a galvanized steel sheet comprising same.

This application provides a zinc-containing multi-element alloy, its preparation method, a zinc plating method, and metal coated parts, relating to the field of hot-dip galvanizing technology. The chemical composition of the zinc-containing multi-element alloy provided in this application, by weight percentage, includes: 0.005%~0.4% Al, 0.4%~2.0% Ni, 0.1%~0.5% Mn, 0.001%~0.05% Ti, 0.01%~0.1% rare earth metals, and 0.001%~0.05% Si, with the balance being Zn and unavoidable impurities. This application obtains a zinc-containing multi-element alloy by synergistically designing the types and contents of various trace elements such as Al, Ni, Mn, Ti, rare earth elements, and Si. This zinc-containing multi-element alloy achieves a comprehensive effect of improved Ni utilization efficiency, controlled zinc-iron alloy layer growth, and uniform coating structure, thereby significantly improving the corrosion resistance of the coating while reducing its thickness.

The invention relates to the technical field of steel pipe grinding, in particular to a hot-dip galvanized steel pipe wall galvanized layer thickness adjusting system which comprises a bottom plate, electric sliding rails, a bidirectional electric guide rail, a grinding machine and the like, the two electric sliding rails are installed at the top of the bottom plate, and the bidirectional electric guide rail is installed between sliding blocks of the two electric sliding rails; and grinding machines for grinding the two ends of the steel pipe are mounted at the bottoms of two sliding blocks of the two-way electric guide rail. Steel pipes can be conveyed rightwards through the feeding conveyor and conveyed into the V-shaped groove for loading, zinc coatings at the two ends of the steel pipes can be ground through the grinding machine, after grinding is completed, the conveying frame continues to rotate, and the ground steel pipes can gradually get close to the discharging conveyor and roll to the discharging conveyor for unloading; feeding and discharging are automatically carried out, the production continuity is higher, and therefore the production efficiency can be improved, and the continuous and efficient production requirement is met.

The utility model discloses a kind of automatic post-treatment equipment of bolt hot galvanizing, belong to metal surface treatment technical field, it includes the mechanical arm for grabbing work, centrifuge and truss manipulator for throwing away excess zinc liquid, the mechanical arm and centrifuge are all located truss manipulator side, the mechanical arm is located centrifuge rear, cooling pool, passivation pool and blanking conveyor are respectively installed below the truss manipulator, and the passivation pool is located cooling pool and blanking conveyor adjacent side, wherein, it further includes zinc plating basket for containing workpiece, the zinc plating basket outer diameter is less than centrifuge inner diameter, in the utility model, adopt mechanical arm, truss manipulator and blanking conveyor and other automation equipment, the seamless docking of bolt hot galvanizing post-treatment process equipment is realized, to effectively improve the automation degree of device whole, to greatly reduce manual operation, greatly avoid the situation of low production efficiency and low capacity caused by manual operation.

The utility model discloses a surface treatment device for a slotted bolt. The surface treatment device comprises a galvanizing bath, the lifting mechanism is arranged at the bottom of the galvanizing bath; the rotating mechanism is arranged at the upper end of the lifting mechanism and comprises a supporting frame connected with the lifting mechanism, a rotating bearing frame is installed on the supporting frame through a toothless type slewing bearing, a galvanizing basket is placed on the bearing frame, a circle of annular bevel gear is arranged on the bearing frame around the galvanizing basket, and a rotating driving bevel gear is arranged on the inner wall of the galvanizing tank. The driving bevel gear is located above the annular bevel gear and corresponds to the annular bevel gear, and the driving bevel gear is driven by a motor to rotate; the limiting mechanism is arranged on the bearing frame and is connected with the galvanized basket; according to the utility model, a workpiece can be directly centrifuged in the galvanizing bath after being galvanized, so that a plating solution is prevented from being scattered everywhere when the workpiece is transferred.

This invention provides a laser welding machine for repairing galvanized steel pipes, relating to the field of laser welding machine technology. It includes a welding station and a laser welding torch, the laser welding torch being movable on the welding station. The machine also includes a butt clamping mechanism, a welding pool, a pre-weld treatment mechanism, and a gas flow treatment mechanism. Two clamping platforms are slidably connected to the welding station, and these platforms can drive the galvanized steel pipe to rotate. The welding pool is located on the welding station between the two clamping platforms. The pre-weld treatment mechanism can perform grinding pre-treatment on the area of ​​the galvanized steel pipe to be welded. The gas flow treatment mechanism consists of clamping arm assembly one and clamping arm assembly two, rotatably connected to both sides of the pre-weld treatment mechanism. During welding, clamping arm assembly one and clamping arm assembly two can clamp the welding position of the galvanized steel pipe and use gas flow to carry away zinc vapor from the molten pool. This solves the technical problem in related technologies where zinc metal on the surface of galvanized steel pipes evaporates into zinc vapor during welding, affecting welding quality.