41results about How to "Realize all position welding" patented technology

The invention relates to the technical field of welding devices, in particular to a crawling welding robot. The robot comprises an adjustable magnetic adsorption module, wheel-covered travelling mechanisms, a crawling machine frame and a welding load device, wherein the welding load device is arranged on the crawling machine frame; the wheel-covered travelling mechanisms are arranged at the two opposite ends of the crawling machine frame and are used for providing crawling power for the crawling machine frame; and the adjustable magnetic adsorption module is arranged on the crawling machine frame and is arranged between the two wheel-covered travelling mechanisms. According to the robot, the wheel-covered travelling mechanisms are arranged so as to realize rail-free and guide-free crawling, moving on a large and medium-sized plane or the surface of a cambered surface welding structural part is realized, vertical crawling on walls is realized, welding operation can be conducted during forward moving or backward moving, full-position welding of large and medium-sized structural parts can be realized, the welding auxiliary time can be obviously reduced, and the production efficiency is high; and the magnetic adsorption force is adjusted through the adjustable magnetic adsorption module, the crawling on flat plates and large-curvature arc plates can be realized, and working environment adaptability is high.

The invention belongs to the technical field of laser welding, and in particular relates to an all-position laser welding system and a welding method, comprising a control system connected with a laser welding head, a tooling platform for carrying welding parts, and a laser transmitter for providing welding energy for the laser welding head ; The incident end is installed on the rotating part of the rotating disk. By setting the incident end on the rotating part of the rotating disk, the laser welding head can be driven by the rotating disk, and when the laser beam is emitted, the laser beam emitted by the laser welding head can rotate ±450 degrees around the rotation axis of the rotating disk , to realize all-position butt welding of thin-walled tubes with a diameter of 5-12 mm; the present invention installs the rotary disk on a position that can drive the laser welding head to perform linear motion on the x-axis, y-axis and z-axis of the three-dimensional coordinate system The moving assembly can adjust the position of the laser welding head, so that the rotation axis of the laser welding head can be on the same line as the axis of the welded pipe.

A gas-shielded flux-cored wire for arc welding, characterized in that the flux core composition includes the following components and mass percentages: TiO2? 20-22%, SiO21-4%, ZrO21-2.5%, Al2O31-3%, MgO ? 1.5%, AlF35~9%, NiF25~6%, Na2SiF61~6%, Ti3Al? 3~4%, Fe3Al4~6%, Co1~2%, the balance is Fe. The flux-cored welding wire of the present invention has excellent technological properties such as low hydrogen content in weld metal diffusion, small spatter, and few defects such as pore cracks, and the welded joint has excellent low-temperature impact toughness and excellent corrosion resistance, and is especially suitable for marine engineering equipment Welding of high-strength steel with a yield strength of 700MPa in the manufacturing industry.

The invention discloses a metal powder-cored flux-cored welding wire for X80 low-alloy high-strength pipeline steel welding, which is composed of a carbon steel strip and a metal powder core. , nickel powder, ferromolybdenum, ferroboron, magnesium powder, rare earth fluoride and the balance of iron powder. The present invention is characterized by adopting Ni-Mo-Ti-B alloy system, which is used for root welding, filling and capping welding of X80 low-alloy high-strength pipeline steel, and is especially recommended for root welding, with fast melting speed and good deposition High efficiency, all-position welding can be realized, the content of diffusible hydrogen is extremely low, and KV2 (‑45°C) is greater than 100J.

The invention relates to a manual arc welding electrode used for welding low-nitrogen and nonmagnetic naval steel. The technical solution is: the manual arc welding electrode is composed of 70-80wt% high-alloy steel core and 20-30wt% coating; the preparation method is to add water glass to the chemical components of the coating, stir, press It is produced by coating on the surface of high alloy steel core. Composition and mass content of high alloy steel core: C is 0.03-0.05%, Si is 0.2-0.4%, Cr is 23-25%, Mn is 8-10%, Ni is 17-20%, N is 0.25% ~0.45%, P≤0.006%, S≤0.003%, the balance is Fe and unavoidable impurities. The composition and mass content of the coating: 45-47% for marble, 20-23% for fluorite, 3-5% for lithium fluoride, 2-4% for quartz sand, 10-12% for rutile, nitrided Manganese is 6-8%, and the rest is iron powder. The welding seam metal formed by welding the low-nitrogen non-magnetic naval steel provided by the invention has the advantages of non-magnetism, high strength, good ductility and seawater corrosion resistance.

A special ultra-low hydrogen electrode for welding E911 steel high-pressure steam pipelines and a preparation method thereof. The invention belongs to the technical field of welding materials. The purpose of the invention is to ensure the uniform distribution of alloy elements in the welding seam of the E911 steel high-pressure steam pipeline, and to ensure the stability of the mechanical properties of long-term operation. The electrode of the present invention is prepared from a welding core and a coating, the coating is formed by mixing coating powder and potassium sodium water glass, and the coating powder is composed of 20 to 40 parts of calcite, carbonic acid 2-10 parts of barium, 17-28 parts of fluorite, 1-8 parts of quartz, 1-7 parts of rutile, 0.5-2 parts of soda ash, 1-6 parts of ferrosilicon, 1-5 parts of electrolytic manganese, 0.5-5 parts of metal chromium powder 5 parts, 0.5-4 parts of medium-carbon ferrochromium, 0.5-4 parts of metal molybdenum powder, 2-15 parts of iron powder, 0.5-2 parts of aluminum-magnesium alloy, 2-5 parts of metal tungsten and 0.5-3 parts of ferro-titanium boron made. Method: uniformly mix the coating powder with potassium sodium water glass, then press-coat it on the welding core, then dry it at room temperature, dry it at low temperature and dry it at high temperature in sequence to obtain the welding rod.

The invention discloses a high-toughness titanium alkaline type seamless flux-cored wire suitable for all-position welding. The flux-cored wire is composed of a low-carbon steel strip at the peripheryand flux core powder inside; and the flux core powder comprises the following components, by weight percentage: 30-40% of rutile, 1-2% of aluminum oxide, 2-4% of dehydrated feldspar, 1-3% of quartz,1-3% of zircon sand, 1-2% of rare earth oxide, 1-2% of silicon powder, 0.2-0.4% of ferroboron, 6-8% of nickel powder, 8-15% of metal manganese, 4-9% of magnesium powder and the balance iron powder andinevitable impurities. According to the flux-cored wire, a titanium alkaline slag system is adopted, the proportion of alloy elements is optimized, the content of mineral powder is adjusted, and under the protection of CO2 gas, horizontal, transverse and vertical position welding can be realized; the mechanical property is stable, the impact power at 40 DEG C below zero reaches 100J, the crack resistance is good, diffusible hydrogen is low, the moisture resistance is strong, the seawater corrosion resistance is good, and the anti-cracking ability is good.