148results about How to "Fast welding" patented technology

The invention discloses a car instrument panel IP tube welding and machining all-in-one machine. The car instrument panel IP tube welding and machining all-in-one machine comprises a welding station and a machining station; the welding station comprises a sleeve vibration feeding machine, a first gasket vibration feeding machine, a second gasket vibration feeding machine, an overturning feeding mechanism, a welding gun supporting assembly, a workpiece clamping mechanical arm mechanism, a first workpiece welding rotation assembly and a second workpiece welding rotation assembly; the machining station comprises a truss robot, a first lathe, a second lathe, a transposition device and a receiving device. By means of the car instrument panel IP tube welding and machining all-in-one machine, full-automatic welding and full-automatic machining of a car instrument panel IP tube are achieved, and the production efficiency is improved.

The invention discloses a method for quick positioning of a fiber core fault. A system is used for performing fiber core fault quick-positioning on an optical cable network system comprising a machine room, connection equipment and optical cables. The method comprises the steps that firstly, for 11 data models of an optical cable fiber core connection relation, uniform, normal and standard management to optical cable network resource data is realized; for a practical optical cable network, actual measurement is performed, so as to obtain attribute data in network resources and topological relation data among the resources; the data is stored into a database model established in the first step, and geographic data in the network resources is obtained at the same time; then a connection relation forming link of an optical cable fiber core is established; after a fault distance and a fiber core in failure are measured through an optical time domain reflectometer, a route relation among the optical cables of the whole link can be established by taking the tendency of the fiber core as a basis, and a fault point can be quickly and accurately positioned.

The invention provides a squeezing detection control method for consumable electrode arc welding along with short circuit which can increase squeezing detection precision. The method includes a step of detecting a droplet squeezing phenomenon by checking that a change in a voltage or resistance between the consumable electrode and base material reaches a squeezing detection reference value (Vtn), and a step of executing output control for rapidly decreasing a welding current (Iw) passing through a short-circuited load when the squeezing phenomenon is detected, so that arc re-striking occurs in a state of low current (Ia). The squeezing detection reference value (Vtn) is set to a first value (Vtn1) during the electrode positive polarity (EP), and set to a second value (Vtn2) during the electrode negative polarity (EN). The second value (Vtn2) is different from the absolute value of the first value.

The invention discloses a method for quick querying and locating of an optical cable link relation. The method is used for conducting quick querying of the optical cable link relation for an optical cable network system which comprises a machine room, a connection device and optical cables. The method comprises the steps that eleven data models aiming at the connection relation between optical cable fiber cores are established; actual testing is conducted on an actual optical cable network, attribute data of resources in the network and data of the topological relation between the resources are acquired and stored in database models established in the first step, and geographic data of the resources in the network are acquired; a link for formation of the connection relation between the optical cable fiber cores is established, and route analysis is conducted on the link. The established eleven data models can establish the route relation between the optical cables in the whole link on the basis of the direction of the fiber cores, and therefore the purpose that complete route analysis and resource locating are conducted on the fiber cores is achieved, fault removal personnel can be helped to conduct quick locating on faulted fiber cores, and the maintenance working efficiency is improved.

The invention relates to the technical field of materials for electronic device welding and specifically discloses a kind of performed solder containing soldering flux and a preparation method thereof. The performed solder containing the soldering flux comprises a soldering material and the soldering flux wrapped in the soldering material; the mass percent of the soldering material is 95%-99.9%, and the mass percent of the soldering flux is 0.1%-5%. The preparation method of the performed solder containing the soldering flux comprises the steps of preparing the soldering flux; smelting and casting an ingot of the soldering material; conducting charging and extruding the ingot of the soldering material into a preform body; rolling the perform body into a material strap; and cutting the material strap. By adopting the performed solder provided by the invention, the deficiencies of dipping the liquid soldering flux and externally applying the solid soldering flux are made up; the soldering flux can reduce the surface tension of the molten soldering material, facilitates wetting and spreading of the performed solder, promotes welding, prevents secondary oxidation of the performed solder and has an auxiliary heat conduction effect as a thermal bridge. By means of the performed solder containing the soldering flux, the welding quality is effectively improved, the good welding effect is achieved, the stability of the welding process can be guaranteed, and the production efficiency can be improved.

The invention provides a photovoltaic cell piece series welding device and method. The method comprises the steps that a solder strip of a certain length is pulled out; the front end and the rear end of the solder strip are clamped, and the solder strip is delivered forwards to a preset position in the clamped mode; photovoltaic cell pieces are grabbed and placed on the solder strip located at the preset position; the relative positions of the photovoltaic cell pieces and the solder strip are prefixed; the photovoltaic cell pieces and the solder strip are delivered to a welding area to be welded. In the solder strip delivery process, the front end and the rear end of the solder strip are well located, the phenomenon that the rear end of the solder strip is curled or bent after the solder strip is cut off can be effectively avoided, the welding efficiency and the welding quality are improved, and the welding process can be more efficient and quicker.

The invention relates to a large heat input energy welding high-strength EH36 steel plate which is made of the following components in percentage by weight through smelting: 0.06-0.18% of C, 0.15-0.50% of Si, 1.10-1.60% of Mn, less than or equal to 0.012% of P, less than or equal to 0.003% of S, 0.10-0.40% of Ni, 0.010-0.030% of Nb, less than or equal to 0.010% of Al, 0.010-0.030% of Ti, 0.001-0.010% of Ca and the balance of Fe and inevitable impurities. The maximum thickness of the steel plate is 100mm, the yield strength of the steel plate is greater than or equal to 355MPa, the tension strength of the steel plate is greater than or equal to 510MPa, and the low-temperature impact absorption energy KV2 of the steel plate at minus 40 DEG C is greater than or equal to 150KJ. A production method of the steel plate comprises the following steps: carrying out smelting, LF/RH (Ladle Furnace/Ruhrstahl Heraeus) refining, continuous casting, heating, rolling, and rapid cooling, thereby obtaining a finished product of the steel plate. The steel plate produced by using the method provided by the invention has the characteristics of high purity, high strength, good low-temperature impact resistance, good toughness when the maximum input line energy is 300KJ/CM, and the like, can be widely applied to fields such as shipbuilding, bridges and building structures, and has wide application prospects.

The present invention relates to an optical cable for communication network, and specifically to a UV optical cable which comprises a central reinforcement, a plurality of optical fiber bundles twisted around the central reinforcement, and the sleeves coated on the peripheral surface of the plurality of optical fiber bundles. Each optical fiber bundle is formed by a plurality of optical fibers which are alternately fixed in the UV curing resin with a beam shape. The invention uses the UV optical fiber bundle as an optical fiber unit. The clearance between the optical fibers in the UV optical fiber bundle is filled by UV cured resin. The diameter of optical cable is greatly reduced. The density of optical cable is increased. The optical cable for communication network has the advantages of small diameter, light weight, high production rate, convenient and quick welding, etc. The pipe wiring of optical cable in the building greatly saves the resource of pipe and furthermore facilitates the optical fiber branching without cutting off the optical fiber. The optical cable of the invention is a novel optical cable for aiming at the FTTH communication network construction.

The invention relates to the technical field of automobile manufacturing equipment, in particular to a modular design method and a modular design structure of a welding fixture for trial-manufacture sample vehicles, which solve the problems of incapability of recycling, long design and manufacturing period and high manufacturing cost of sample vehicle trial-manufacture fixture parts of automobiles in the prior art. The welding fixture comprises a base and a fixture unit arranged on the base; structural members with the same functions in the welding fixture for the trial-manufacture sample vehicles are formulated into standard or standard series parts in the process of design and development to form a fixture module series, so that the standard or standard series parts are recycled in the development of the welding fixture for new type trial-manufacture sample vehicles and the welding fixture for small-lot vehicles, and non-standard parts in the fixture are subjected to structural design; and the standard parts and the non-standard parts in the welding fixture for the trial-manufacture sample vehicles are matched to form novel and complete welding fixture equipment for the trial-manufacture sample vehicles. Through the modular design method and the modular design structure, the aims of shortening the design and manufacturing period, recycling general and standard parts and reducing manufacturing cost are fulfilled.

The invention discloses full-automatic electric welding mechanical equipment. The full-automatic electric welding mechanical equipment comprises a supporting base. Wheels are arranged at the bottom end of the supporting base. A welding part fixing supporting device is arranged at the upper end of the supporting base and comprises a fixing frame, a screw, a hand wheel and a pair of clamping blocks.A supporting column is arranged on the right side of the welding part fixing supporting device. The full-automatic electric welding mechanical equipment has the beneficial effects that the arranged welding part fixing supporting device can well fix a component needing to be welded, and the distance between arc grooves can be adjusted according to the first clamping block and the second clamping block; in addition, through an arranged telescopic air cylinder and an arranged stepping motor, a welding gun device can move up and down, welding rod replacement is convenient, the welding gun devicecan conduct local welding through the stepping motor, welding limitation is reduced, and welding of the special welding position is improved.

The invention discloses a sheet metal screen surface frame of a rear projection television, including that the sheet metal is bent and butt jointed to form a surface frame strip of the rectangle screen surface frame; a folded rear cover fixing strip is arranged on the surface frame strip and is vertical to the inner side of the fold edge of the plane of the screen surface frame; a plurality of rear cover locking screw holes are in staggered arrangement on the rear cover fixing strip; a plurality of double folding screen layering strip fixing bases are in staggered arrangement on the surface frame strip and is in parallel with the inner side of the fold edge of the plane of the screen surface frame; a plurality of screw hole for locking the screen layering strips are in staggered arrangement on the screen layering strip fixing bases. The invention also discloses a manufacturing method of the sheet metal screen surface frame of the rear projection television. The sheet metal screen surface frame and the manufacturing method adopt the common sheet metal, use the sheet metal process to manufacture screen surface frame of the large-size rear projection television, saves the mould cost and the non-ferrous materials in the traditional process greatly and reduces the production cost; thereby, the market competitive power of the large-size rear projection television is improved.

The invention discloses an ocean engineering module structure welding method based on a VR technology. The method comprises the following steps: digital models of real workpieces are built through 3Dscanning, and corresponding 3D solid models are generated; a real welding process is caught by using a camera, and a projector is used for visual displaying on the 3D solid models; skilled welding workers finish the welding process through observing molten bath images and operating a virtual welding gun; a welding robot finishes real welding through welding parameters of the virtual welding gun; an external monitoring system transfers welding information in the robot welding process to a computer; the computer forms speed-current relation models through welding data; and primary welding workers finish welding through operating a virtual welding device according to the speed-current. The method performs virtual-real welding on ocean engineering module structures, so that profile steel and pipelines in the ocean engineering modules are welded more quickly and accurately, and the personal safety and the welding efficiency are guaranteed in the welding process.

A joint construction for a column of steel pipes comprises a long steel pipe 1 of a first thickness t and a second steel pipe 2 of a second thickness T which is greater than that of the first. The steel pipes 1,2 are formed by either cold or hot forming to have the same outer shape and diameter, and they are welded together from the outside in an arrangement in which an end surface of the long pipe 1 is opposed to an end surface of the short pipe 2 which has no bevelled portion. An inner collar 3 can be included in the joint construction and may be positioned inside the long pipe 1 so that it can be abutted against the end surface of the short pipe 2. The pipes 1,2 may either be quadrangular or cylindrical.

The invention relates to a rod piece welding machine, particularly relates to an automatic welding device for a large rod piece box beam, and belongs to the technical field of mechanical devices. The machine comprises a walking mechanism, a door frame, a welding arm lifting mechanism, a welding seam servo tracking mechanism, a welding gun three-dimensional adjusting mechanism, an operation platform, a carrier platform, a welding flux conveying recycling system and the like. The door frame is installed on the walking mechanism, the welding arm lifting mechanism is installed on the door frame, the welding seam servo tracking mechanism is installed on the welding arm lifting mechanism, the welding gun three-dimensional adjusting mechanism is arranged on the welding seam tracking mechanism, the operation platform is installed on the welding arm lifting mechanism, the carrier platform is installed on the door frame, and the welding flux conveying recycling system is installed on the welding arm lifting mechanism. The rod piece welding machine is simple, compact and reasonable in structure and capable of accurately and quickly achieving welding of different rod pieces and different box beams, greatly reduces labor intensity of workers, and is high in automation degree, high in welding accuracy, low in cost and convenient and flexible to use.

The invention relates to low-carbon silicon-manganese high-strength steel containing Cu and a production method of the steel. The low-carbon silicon-manganese high-strength steel containing Cu comprises the following chemical components by weight percent: 0.18-0.22% of C, 1.3-1.5% of Si, 1.3-1.8% of Mn, 0.4-0.55% of Cu, 0.32-0.4% of Ni, less than or equal to 0.05% of P, less than or equal to 0.03% of S and the balance of Fe and unavoidable impurities. The production method comprises the following steps: smelting according to the chemical components, and forging a casting blank into a slab; performing hot rolling on the slab to obtain a final rolling plate; and performing heat treatment process to obtain the high-strength steel. By adopting the method, the retained austenite volume fraction in the steel is increased, the mechanical property is improved, and the bad influence on the smelting and casting process by adding plenty of Mn is avoided. The production method is simple and practicable and the cost is low.

This invention relates to a seal structure of turbine nozzles, in which the prolonged lines of lower welding groove faces between a nozzle chamber and a nozzle set meet at point E of Y central axes of a nozzle and the distance H between point E to the central point O of the nozzle is 1100mm, and the included angle between the lower groove face and Z1 direction line over point E is 40deg., prolonged lines of the upper groove faces between the chamber and the set meet at point F of the Y-oriented central axes of the nozzle and F is above E, the distance between them is 5mm and the included angle between the upper groove face and the Z2 line over point F is 40deg., which finishes two seams of a nozzle at one run with electronic beams.

The invention relates to a brazing method for an aluminum target and a copper-containing back plate. The brazing method includes using different solders to perform an infiltration treatment on the aluminum target and the copper-containing back plate, and then combining the two. After the welding process is completed, the welding strength of the aluminum target material and the copper-containing backing plate obtained by the method of the present invention is significantly improved, and the welding strength is 70 to 100 MPa, and the welding bonding rate is also significantly improved. Recycle.

The invention discloses an automatic centering welding deice for bolts of a shell liner of a mixing machine. The device comprises a left centering bracket, a right centering bracket, a height adjusting mechanism and a pitch adjusting mechanism, wherein the height adjusting mechanism and the pitch adjusting mechanism are arranged on the left centering bracket and the right centering bracket; the height adjusting mechanism comprises adjusting bolts and nuts; eight adjusting bolts are symmetrically arranged on four front and rear corners of the left centering bracket and the right centering bracket respectively; and the nuts are mounted on the adjusting bolts and upper and lower surfaces of the left centering bracket and the right centering bracket. The height of the adjusting bolts on the four corners of the left centering bracket and the right centering bracket in the device are determined by the length of the liner bolts and are adjusted by upper and lower double nuts; the space between front, middle and rear centering dies on the left centering bracket and the right centering bracket are adjusted according to the space between the same row of liner bolts on the shell liner; and the space between the left centering bracket and the right centering bracket is adjusted by waist-shaped holes of a connecting rod according to the pitch of two rows of holes of the shell liner. The device can guarantee welding precision and quality and also can greatly increase the welding speed so as to meet the maintenance quality and the project duration requirement.