37results about How to "There will be no false welding" patented technology

The invention relates to a welding fixture which comprises an upper pressure plate and a lower pressure plate, wherein the upper pressure plate and the lower pressure plate comprise central positioning holes which are arranged coaxially, the lower pressure plate is provided with a tooth block positioning hole, a tooth block mounting groove is arranged on the lower surface of the lower pressure plate and the welding fixture is characterized in that a tooth block positioning screw rod and a tooth block pressure spring are mounted between the upper pressure plate and the lower pressure plate. The welding fixture is simple in structure and can always keep the fastening connection between a tooth block and the welding surface of a basal body by high-temperature welding and avoid the phenomena of looseness and poor welding.

The invention relates to a marsh geophone which solves the technical problems that a connecting wire core of the existing marsh geophone is difficult to weld; the production efficiency is low during batch production; quality defects of cold solder joint, welding slags of welding spots and the like occur frequently; the maintenance is difficult; the stretching resistance between an outgoing cable and a geophone core is weak; and the welding spot is easy to snap and short out because of the twisting force. The marsh geophone is provided with an outer protecting shell, a geophone core, a supporting shock insulator, a sealing guide sleeve, a compression plug, a pressure pad, an outgoing cable and a tail core, wherein the supporting shock insulator, which is a tensile supporting shock insulator, is provided with a tensile notch and a tensile connecting circuit board; and the pressure pad is a torsion-proof pressure pad. The marsh geophone can be widely used for marsh and shoal geophones.

The invention discloses a welding process and an application device of a corrugated pipe assembly. The welding process includes steps that a, primary and secondary pieces are formed by welding; b, a corrugated pipe core is formed by welding; c, a corrugated pipe is formed by welding; d, the corrugated pipe assembly is formed by welding; a sealing performance test is performed. A corrugated pipe sealing device is characterized by comprising the corrugated pipe assembly, a casing, a stationary ring and a moving ring, wherein the left end of the casing is embedded into a groove face, the stationary ring is arranged in a step surface, the moving ring is attached to the end face of the stationary ring, and a contact face forms a sealing end face. The welding process and the application device of the corrugated pipe assembly have the advantages that the welding efficiency is high, the accuracy is good, the elastic compensation is stable, and the service life is long.

The invention discloses a welding tool and method for a copper woven belt and a copper lead. The welding tool comprises an upper arc-shaped piece, a lower arc-shaped piece, a locking bolt and a connecting device. According to the welding tool and method for the copper woven belt and the copper lead, firstly, the copper woven belt and the copper lead are fixed through the welding tool, the whole welding process of the copper woven belt and the copper lead can be completed by one person, and the welding cost is low; secondly, the area, exposed to air, of the copper woven belt is reduced during welding, so that the oxidation degree of the copper woven belt is reduced, tin materials can be conveniently accumulated, and then welding flux at the welding position is dense and fastened; and finally, the copper woven belt is pressed during welding, so that one side of the copper woven belt is smooth and full during welding, burrs and other edges and corners generated during welding are reduced,the situation of pseudo soldering is avoided, the welded copper woven belt and the copper lead can be conveniently assembled, the workload of operators is reduced, and better use prospects are brought.

The invention discloses an oil heater. A heating device (2) and a temperature controller (3) are connected to the bottom surface of a tank body (1); a groove (4) is arranged on the bottom surface of the tank body (1); the heating device (2) and the temperature controller (3) are located in the groove (4); a heat conducting plate (5) is arranged between the heating device (2) and the bottom surface of the groove (4); the shape of the heat conducting plate (5) is the same as that of the bottom surface of the groove (4); one plane of the heat conducting plate (5) is completely fitted with the bottom surface of the groove (4); and the heating device (2) and the temperature controller (3) are connected to the other plane of the heat conducting plate (5). The welding method of the oil heater comprises the following steps for welding the heating device (2) and the heat conducting plate (5): 1) preparing base solution and dry powder; 2) applying the base solution; 3) sprinkling the dry powder on the base solution; 4) turning on a soldering machine and preheating a cushion block of the soldering machine; 5) putting the heating device (2) and the heat conducting plate (5) on the cushion block; 6) pressing the heating device (2) and the heat conducting plate (5); and 7) applying gypsum paste. Compared with the prior art, the oil heater disclosed by the invention has the characteristics that the sound is lower during heating and the difference between the temperature measured by the temperature controller and the actual temperature of the oil is smaller.

The invention discloses a welding fixing device. The welding fixing device comprises a welding fixing device body composed of a tray, a base and a supporting rod, wherein the top of the tray is fixedly connected with the bottom of the base; a groove is formed in the top of the base; the bottom of the inner wall of the groove is fixedly connected with the bottom of the supporting rod; the supporting rod is sleeved with a first welding piece; a second welding piece is connected into the first welding piece in a sliding manner; the supporting rod comprises a rod body; a fixing mechanism and a correcting mechanism are arranged in the rod body; the fixing mechanism comprises a rotating rod; and a sliding mechanism is arranged on the top of the rotating rod. The invention relates to the technical field of welding. The welding fixing device solves the problems that due to transverse welding, welding defects such as unsmooth welding seams on the surface of a welding part, uneven and full fillet filling, base metal corrosion, over-burning blackening, undercut (pipe opening burning), overlap height, cracks, air holes and impurities are caused.

The present invention relates to a sulfur hexafluoride density relay and a density table C-shaped pipe. The pipe comprises a C-shaped pipe body, a pedestal and an end base, the pedestal and the end base are respectively connected with two ends of the C-shaped pipe body, and tin layers area arranged at the outer surfaces of the C-shaped pipe body, the pedestal and the end base. The making technology comprises the following steps: (1) performing pickling of the surfaces of the C-shaped pipe body, the pedestal and the end base, and removing the oxide and the impurity of the surface of the brass; (2) disposing the C-shaped pipe body, the pedestal and the end base into the dissolved tin liquor, and plating the tin layers on the surfaces of the C-shaped pipe body, the pedestal and the end base; and (3) connecting the pedestal and the end base with the two ends of the C-shaped pipe body through soldering. When the C-shaped pipe body is soldered with the pedestal and the end base, because there is a layer of tinning at the surface of the C-shaped pipe body, the pseudo soldering condition can not generate at soldering, and the efficiency and the reliability of the soldering are greatly improved.

The invention discloses a manufacturing method for an automobile central control box. A low-pressure casting mode is adopted to manufacture a central control box body with a water channel; a water channel cover plate with a water flow groove is flushed in a CNC mode; and then the water channel cover plate is welded to the water channel of the central control box body through friction welding, andthe welded water channel cover plate and the central control box body form a sealed cavity. The central control box body with the water channel is manufactured in the low-pressure casting mode, the water channel cover plate with the water channel is manufactured in the CNC mode, and the central control box body and the water channel cover plate are welded in the friction welding mode, a brand-newprocess is formed. When the process is used for manufacturing the central control box, the mold opening cost is low, the mold opening period is short, the process is simplified, the produced automobile central control box is good in air impermeability and mechanical performance, the production cost is saved, and the formed central control box is high in integration level.

The invention discloses a cleaning mechanism and a cleaning machine. The cleaning mechanism comprises a driving part, a first roller, a cleaning belt and a connecting mechanism; the cleaning belt is provided with a cleaning surface; the driving end of the driving part is fixedly connected with the first roller; two ends of the cleaning belt are connected with the connecting mechanism respectively so that the connecting mechanism can provide pulling force for the cleaning belt; the cleaning belt is wound on the first roller through the pulling force, and the cleaning surface deviates from the first roller; and the driving part drives the first roller to move between a first position close to workpieces and a second position away from the workpieces. According to the cleaning mechanism and the cleaning machine, residual dust after the electrode plates (workpieces) are cleaned can be removed, so that it is ensured that the condition of insufficient welding or welding failures is avoided during subsequent tab welding.

The invention discloses a plug-in type integrally-formed inductor, comprising a coil and a magnetic main body wrapping the outer side of the coil. A first welding pin and a second welding pin which extend downwards are arranged at the two ends of the coil respectively, a plurality of bosses are arranged at the bottom of the magnetic main body, and a plurality of heat dissipation grooves are formedbetween the bosses. According to the invention, the connector directly passes through the PCB in a plugging manner. The first welding pin and the second welding pin are firmly welded with the bottomsurface of the PCB, pseudo soldering is avoided, a high-requirement drop test can be passed, and the inductor is good in EMI resistance, large in saturation current, long in service life and small insize, and can be widely applied to automobile navigation, mobile phones, liquid crystal televisions, notebook computers, communication equipment and instruments.

The invention relates to the technical field of COF flexible printed circuit boards, and discloses a tin soldering oil smearing processing method for a COF flexible printed circuit board, and the method comprises the following steps: S1, carrying out the preliminary cleaning of the COF flexible printed circuit board; s2, wiping the cleaned COF flexible printed circuit board by using an alcohol cotton ball; s3, selecting a proper amount of soldering tin oil, and putting the soldering tin oil into a container; s4, heating the soldering tin oil placed in the container; s5, adding an activating agent during heating, and continuously heating; and S6, stirring during heating for fully mixing the activating agent and the soldering tin oil together. By improving an existing smearing method, the tin soldering oil is treated, a silk-screen printing film and a steel needle are used in the smearing process, it is guaranteed that the situation of insufficient soldering caused by bubbles cannot occur in the later-period welding process, and the purpose of a good later-period tin soldering effect is achieved.

The invention discloses a metal mask manufacturing method and a metal screen frame. The metal mask manufacturing method comprises the following steps of: step (1), processing a convex-concave structure on the upper surface of the metal screen frame; step (2), filling a hollow part of the metal screen frame with a filler, and combining the metal screen frame and the filler to form a combined frame;step (3), cleaning the combined frame; step (4), carrying out electric conduction treatment on the filler; step (5), coating the combined frame; step (6), carrying out exposure reaction on a part where an opening is required, of the coated combined frame; step (7), developing by using developing equipment, and exposing the metal screen frame and the filler on an unexposed part; step (8), electroplating the upper surface of the combined frame, wherein a plating layer gradually grows to a place of the combined frame, which is not covered by printing ink, and forming a metal mask on the electroplating layer; and step (9), removing the coating, to be specific, putting the electroplated combined product in coating removal equipment for coating removal, and dissolving the printing ink and the filler completely by coating removal liquid medicine in the coating removal equipment to form the metal mask finished product.

The invention relates to a cold-rolled tin-welded steel strip manufacturing and welding machining system which comprises a workbench, a pressing mechanism, a fixing mechanism and a butt-joint mechanism. Multiple sets of supporting frames are installed at the lower end of the workbench, the pressing mechanism is installed on the right side of the upper end of the workbench, the fixing mechanism is installed on the left side of the pressing mechanism, and the fixing mechanism is installed on the workbench. A butt joint mechanism is arranged on the left side of the fixing mechanism. By means of the cold-rolled tin-welded steel strip manufacturing and welding machining system, the problem that in the prior art, in the welding process of a steel coil, the whole steel coil needs to be moved, and operation is quite inconvenient can be solved; and the problems that the sequence of steel coil welding in the whole technological process is not considered in the prior art, although the welding problem is solved in the prior art, the position of the steel coil in the whole assembly line is not considered, the practicability is not achieved, and the welded steel coil does not adapt to the whole assembly line work can be solved.