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43results about How to "Simplify soldering steps" patented technology

New welding process method for connecting joints between branch pipe and main pipe of steel structure in ocean engineering

The invention discloses a new welding process method for connecting joints between a branch pipe and a main pipe of a steel structure in ocean engineering. The new welding process method includes thefollowing steps that blanking and assembling are conducted, blanking and groove machining are conducted on the branch pipe, connecting joint ends between the branch pipe and the main pipe are assembled, and the groove angle, the assembly gap and truncated edges of the connecting joint ends between the branch pipe and the main pipe meet preset assembly technical requirements; bottom sealing weldingis conducted, and metal powder cored wires are adopted for semi-automatic gas shielded welding; filling welding is conducted, and flux-cored wires are adopted for semi-automatic gas shielded welding;and covering welding is conducted, and the flux-cored wires are adopted for semi-automatic gas shielded welding. Semi-automatic gas shielded welding is adopted in the welding process, the welding wire only needs to be replaced once, the welding steps are greatly simplified, the problems of constantly changing welding equipment and welding rods are avoided, the labor intensity of welding is reduced, the welding efficiency is improved, and thus the welding cost of the steel structure joints is greatly reduced.
Owner:OFFSHORE OIL ENG QINGDAO +1

Valve plug of height adjustment reversing valve and girth welding process thereof for height adjustment system of coal mining machine

The invention discloses a valve plug of a height adjustment reversing valve and a girth welding process thereof for a height adjustment system of a coal mining machine. The valve plug comprises a valve plug body, a left plug head and a right plug head; the left plug head and the right plug head are respectively provided with a left annular boss and a right annular boss the outer diameter of whichare the same with the outer diameter of the valve plug body; and the left annular boss and the valve plug body as well as the right annular boss and the valve plug body are respectively fastened and connected through a circular ring-shaped soldering joint which is arranged along the valve plug body radially. The girth welding process comprises the following steps: 1. groove treatment; 2. preheating before welding; 3. girth welding; and 4. heat preservation after welding. The valve plug and the process provided by the invention have the advantages of reasonable design, simple welding steps, good welding quality and long service life of valve plug manufacturing, are convenient to operate, and multiple actual problems of small operation space, smaller effective welding cross section area, lower strength, poor welding quality and higher rejection rate, is inconvenient to operate, the welding quality of the valve plug is not easy to control and the like in welding for the existing valve plug can be solved effectively.
Owner:XIAN COAL MINING MACHINERY

Flute-shaped pipe welding machine and welding method thereof

The invention discloses a flute-shaped pipe welding machine and a welding method thereof. The flute-shaped pipe welding machine comprises a box body and a conveying belt; the conveying belt is arranged on one side of the box body; a rotating mechanism and a shielding mechanism are arranged in the box body; the rotating mechanism is rotatably connected to the center of the box body, and the shielding mechanism is arranged in the box body; the shielding mechanism divides the interior of the box body into a feeding and discharging bin, a welding bin, a cooling bin and a detection bin; an opening mechanism is arranged in the feeding and discharging bin; a welding mechanism is arranged in the welding bin; a cooling mechanism is arranged in the cooling bin; and a detection mechanism is arranged in the detection bin. The method comprises the steps of flute-shaped pipe clamping and feeding, welding box clamping, flute-shaped pipe welding, flute-shaped pipe cooling and flute-shaped pipe detection. According to the flute-shaped pipe welding machine and the welding method thereof provided by the invention, flute-shaped pipes can be welded at multiple stations at the same time, the welding efficiency of the flute-shaped pipes is improved, meanwhile, the process steps can be shortened, and the welding precision and welding quality of the flute-shaped pipes are improved.
Owner:XINCHANG KECHUANG AUTOMATION EQUIP

Efficient titanium alloy laser-electric arc composite heat source pipeline welding process

The invention provides an efficient titanium alloy laser-electric arc composite heat source pipeline welding process. The efficient titanium alloy laser-electric arc composite heat source pipeline welding process comprises the following steps that a groove is processed according to the plate thickness of a to-be-welded workpiece, greasy dirt at a welding part is cleaned, and the surface of the to-be-welded workpiece is kept dry; spot welding fixing is conducted on the to-be-welded workpiece before formal welding according to the size of the to-be-welded workpiece; a laser-TIG electric arc composite main mode is selected for welding; whether cold filling wire / cosmetic welding exists or not is determined according to the groove form of the to-be-welded workpiece, and if yes, a welding wire with the preset diameter is selected for filling according to the preset wire feeding speed; high-quality welding seam forming of longitudinal and circular seams of a pipeline is achieved through thin plate single-layer welding and thick plate multi-layer and multi-pass welding of the to-be-welded workpiece; and after welding, weld seams which do not meet the standard are polished, and splashes are removed. The welding steps are simplified, the welding mode is simple, material selection is accurate and standard, and the titanium pipe welding quality can be guaranteed.
Owner:JIANGSU TONGYU STEEL PIPE GRP +1

Vacuum pumping welding device and method for pressure vessel

The invention discloses a vacuum pumping welding device and method for a pressure vessel. The vacuum pumping welding device for the pressure vessel comprises a frame, a placement chamber provided witha placement cavity and arranged on the frame, a pressure vessel clamp arranged in the placement cavity, a vacuum pumping mechanism communicating with the placement cavity, and a laser welding machinearranged on the frame and used for hermetically welding the pressure vessel, wherein the pressure vessel clamp comprises a lower jaw plate arranged in the placement cavity, a first drive motor for driving the lower jaw plate to rotate, and an upper jaw plate rotationally arranged in the placement cavity along its own axis and positioned on the upper side of the lower jaw plate, and a drive component used for driving the upper jaw plate to move close to or far from the lower jaw plate. The vacuum pumping welding device for the pressure vessel is simple in structure, simple in the vacuum pumping welding process of the pressure vessel, low in cost, and good in hermetically welding effect. The vacuum pumping welding method for the pressure vessel is simple in vacuum pumping welding step of the pressure vessel, and good in hermetically welding effect.
Owner:THERMOS JIANGSU HOUSEWARES

Lithium battery and assembly method

The lithium battery comprises a shell, a battery cell, a positive electrode cover plate, a positive electrode insulating sheet, a positive electrode current collecting structure and a negative electrode current collecting structure, the shell is a hollow cylindrical tube, the positive electrode end is open, the negative electrode end is closed, an assembly through hole A is formed in the center of the surface of the negative electrode end, the positive electrode cover plate is installed on the positive electrode current collecting structure, and the positive electrode insulating sheet is installed on the battery cell. The positive electrode insulation sheet is installed on the positive electrode current collecting structure and located between the positive electrode cover plate and the positive electrode current collecting structure, the battery cell positive electrode face is welded to the positive electrode current collecting structure, the battery cell negative electrode face is welded to the negative electrode current collecting structure, and the negative electrode current collecting structure is connected with the shell negative electrode end through an assembly through hole A. The invention has the beneficial effects that the current collecting columns are arranged on the current collecting plates, so that the connection between the current collecting columns and the current collecting plates is enhanced, the internal resistance of the battery is further reduced, and the current is increased; and the insulating sheet and the cover plate are directly mounted on the current collecting column, so that the welding steps are reduced, and the technological process is simplified.
Owner:英能基(成都)科技有限公司

Efficient laser-electric arc composite heat source high-strength steel pipeline straight seam welding process

The invention provides an efficient laser-electric arc composite heat source high-strength steel pipeline straight seam welding process which comprises the following steps that a groove is machined according to the plate thickness of a to-be-welded workpiece, greasy dirt at a welded part is removed, and the surface of the to-be-welded workpiece is kept dry; spot welding fixing is conducted on the to-be-welded workpiece before formal welding according to the size of the to-be-welded workpiece; a laser-MAG electric arc composite main mode is selected for welding, mixed gas of 82% of Ar and 18% of CO2 is selected as protective gas, and a high-strength steel welding wire with the diameter ranging from 1.0 mm to 1.6 mm is selected as a welding wire; the to-be-welded workpiece is subjected to multi-layer and multi-pass welding with different welding modes and parameter matching on each layer, and high-quality forming of a straight welding seam of a pipeline is achieved; and polishing and cleaning are conducted on the periphery of the welding seam after welding. According to the efficient laser-electric arc composite heat source high-strength steel pipeline straight seam welding process, the welding steps are simplified, the welding mode is simple, material selection is accurate and standard, and the titanium pipe welding quality can be guaranteed.
Owner:JIANGSU TONGYU STEEL PIPE GRP +1

A kind of welding tool for pump valve installation and its welding method

The invention discloses a welding tool for pump valve mounting. The welding tool comprises a base, a rotating base, a box body, a first mounting base, a second mounting base, a dust collection box anda suction pressure tank. The rotating base is rotatably mounted in the top side of the base, a first hydraulic rod is mounted on the center of the bottom of the rotating base, sleeves are arranged atthe positions, on the periphery of the first hydraulic rod, in the rotating base, a mounting plate is arranged at the position, above the rotating base, of the telescopic end of the first hydraulic rod, guide rods are arranged on the periphery of the bottom of the mounting plate, the guide rods penetrate through the sleeves, one end of the rotating base is provided with a first mounting base, anda first servo motor is arranged on one side of the first mounting base. A pump valve is rapidly mounted and fixed, the pump valve can be conveniently subjected to multi-angle adjusting in the weldingprocess, the welding step is simplified, welding operation is facilitated, through stretching out and drawing back of a fourth hydraulic rod, dust treatment is finished, noise pollution is greatly reduced, and the whole treatment manner is environment-friendly, sanitary and free of pollution.
Owner:合肥华升泵阀股份有限公司

Technology of welding air cylinder cover aluminum sheet for automobile

The invention discloses a technology of welding an air cylinder cover aluminum sheet for an automobile. The technology comprises the following steps of: step a. removing oil stains, aluminum scraps and oxidation films on parts to be welded of the end face and edge of an aluminum alloy sheet to be welded in the range of 20mm by using acetone and a rotary file so as to show metallic luster; step b.sticking a protective film on the sheet, wherein no bubbles are allowed in the protective film, and no protective film is stuck in the range of 3-5 mm from a welding part to the interior; step c. checking whether the surface of a workpiece is wet, and if the surface of the workpiece is wet, welding after drying; step d. selecting 3-6cm as the length of spot welding according to the size of a welding structural component; step e. carrying out abutting joint of an I-shaped groove, and welding by selecting welding wires with the diameter of 1.2mm, the welding current of 130-150A and the welding voltage of 19-22V at the gas flow rate of 10-18L per minute and the welding speed of 350-500mm per minute; and step f. polishing unaesthetic welded joints, and clearing splashes. According to the technology, welding steps are simplified, a welding mode is simple, the material selection is accurate and standardized, and the welding quality of steel pipes can be ensured.
Owner:安徽省佳隆汽车配件有限公司

Welding tool for pump valve mounting and welding method thereof

The invention discloses a welding tool for pump valve mounting. The welding tool comprises a base, a rotating base, a box body, a first mounting base, a second mounting base, a dust collection box anda suction pressure tank. The rotating base is rotatably mounted in the top side of the base, a first hydraulic rod is mounted on the center of the bottom of the rotating base, sleeves are arranged atthe positions, on the periphery of the first hydraulic rod, in the rotating base, a mounting plate is arranged at the position, above the rotating base, of the telescopic end of the first hydraulic rod, guide rods are arranged on the periphery of the bottom of the mounting plate, the guide rods penetrate through the sleeves, one end of the rotating base is provided with a first mounting base, anda first servo motor is arranged on one side of the first mounting base. A pump valve is rapidly mounted and fixed, the pump valve can be conveniently subjected to multi-angle adjusting in the weldingprocess, the welding step is simplified, welding operation is facilitated, through stretching out and drawing back of a fourth hydraulic rod, dust treatment is finished, noise pollution is greatly reduced, and the whole treatment manner is environment-friendly, sanitary and free of pollution.
Owner:合肥华升泵阀股份有限公司
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