11results about How to "Avoid slag inclusions" patented technology

The invention provides an inertia friction welding auxiliary machining device for dissimilar materials and a working method of the inertia friction welding auxiliary machining device, and belongs to the technical field of friction welding. The problem that in the prior art, the heat preservation effect cannot be improved at any time of welding according to the process requirement is solved. The device comprises a main shaft side box body, a main shaft side clamp, an external blowing assembly, a main shaft side to-be-welded piece, a movable sliding table box body, a lathe bed, a tailstock side clamp, a tailstock side to-be-welded piece and a heating mechanism, the main shaft side box body is installed on one side of the lathe bed, and the movable sliding table box body is installed on the other side of the lathe bed in a sliding mode through a movable sliding table rail; the main shaft side clamp is installed in the main shaft side box body through the main shaft fixing seat, the external blowing assembly is arranged on the outer side of a welding area of a main shaft side to-be-welded piece, the tailstock side clamp is installed in the movable sliding table box body through the tailstock fixing seat, and the heating mechanism is arranged on the outer side of the welding area of the tailstock side to-be-welded piece. The device is mainly used for protecting the welding area of friction welding.

The application discloses an integrated stair formwork reinforcing device, which comprises a shell for accommodating internal components and arranged along the length direction of a stair formwork; an adjusting assembly comprising two groups of arm rods one, arm rods two pivotally connected with the arm rods one and arm rods three pivotally connected with the arm rods two, the arm rods one and the arm rods two being arranged across the width direction of the stair formwork after being unfolded, and the arm rods three being arranged perpendicularly to the surface of the stair formwork and across the thickness of the stair formwork after being unfolded; and a fixing assembly comprising a plurality of pairs of pull screws for connecting the arm rods three on the same side above or below the stair formwork; the arm rods one and the arm rods two are fixed together with the arm rods three to fix the stair formwork; and the arm rods one, the arm rods two and the arm rods three are all accommodated in the shell when the stair formwork does not need to be reinforced. The application has the advantages of simple structure, convenient operation, fast formwork reinforcing, high construction efficiency and suitability for construction of stair formworks of different sizes.

The utility model provides a vertical film removing device of a circuit board, which comprises a rack, a clamp and a film removing mechanism, the rack comprises a bottom frame and an upper frame arranged above the bottom frame, a liquid medicine box is arranged in the bottom frame, a filtering mechanism is arranged in the liquid medicine box, a reaction tank is arranged in the upper frame, and the film removing mechanism is arranged in the reaction tank. The clamp moves in the reaction tank in a vertical state through the conveying mechanism, the film removing mechanism is arranged in the reaction tank and comprises two spraying discs symmetrically arranged on the two sides of the clamp with the clamp as the center, each spraying disc comprises a plurality of spraying pipes evenly distributed in the conveying direction of the clamp, the spraying pipes are vertically arranged and provided with a plurality of evenly-distributed nozzles, and the nozzles are arranged on the spraying discs. And the nozzle and the spray pipe are obliquely arranged. According to the utility model, the film is removed by adopting a vertical film removing mode, the nozzles are obliquely arranged, the film at a dead angle position or a position with smaller line width and line distance can be thoroughly removed, slag inclusion is avoided, and a circulating system of liquid medicine is formed through the liquid medicine tank, the spraying disc and the reaction tank, so that resources are saved.

The invention relates to the technical field of welding, in particular to a buckle welding device. According to the buckle welding device, the buckle can be welded conveniently. A buckle welding device comprises a supporting frame and a welding device body, universal wheels are arranged on the lower side of the supporting frame, the welding device body is connected to the rear lower portion of the supporting frame in a clamped mode, an elastic rope is connected between the welding device body and the supporting frame, the buckle welding device further comprises a fixing mechanism and a stabilizing mechanism, the fixing mechanism is arranged on the front upper portion of the supporting frame, and the stabilizing mechanism is arranged on the front lower portion of the supporting frame. The first extrusion part and the second extrusion part move towards the inner side, a buckle can be fixed in the welding process, people do not need to hold the buckle with hands, therefore, people can conduct welding work conveniently, meanwhile, the welding safety can be improved, the stability of the supporting frame can be improved through a suction cup in the welding process, and the welding efficiency is improved. And people are assisted in welding work.

The utility model relates to the technical field of air compressor rotor forming, in particular to efficient forming equipment for an air compressor rotor, the surface of the other fixing plate is rotationally connected with a right mold through a pin shaft, and the surface of the left mold is fixedly communicated with a feeding pipe. The rack moves to drive the first gear to rotate so as to drive the second gear to rotate, and the second gear rotates to drive the rotating shaft to rotate, so that the left mold and the right mold can swing back and forth, blockage and a gas cavity are not easily caused, casting molding can be performed within a short time, and the working efficiency is improved; the transmission rod moves to drive the movable frame to slide along the sliding groove machined in the protruding part of the inner wall of the second shell, the movable frame moves to drive the transverse rod to slide along the through hole machined in the second shell, so that the flow speed during feeding can be controlled through the baffle, air holes generated due to too fast casting or slag inclusion and cold shut generated due to too slow casting can be prevented, and the working quality is improved.

The invention discloses a rotary electrolytic equipment, wherein a driving motor drives a small gear shaft to drive a large gear to rotate. The upper and lower plate small springs and upper and lower rotary roller bearings are respectively installed in the rotary roller bearing grooves on both sides of the upper and lower plates of a rotary bracket of a rotary bracket; the large gear is screwed to the lower plate of the rotary bracket. A lower anode positioning column with a lower anode positioning hole is provided at the center of the lower end cover. The upper end cap of the upper end cover is provided with an upper anode positioning column with an upper anode positioning hole. The rotary roller, the upper and lower ends are correspondingly tightly fitted on the upper rotary roller bearing and the lower rotary roller bearing; the anode is inserted in the upper anode positioning hole and the lower anode positioning hole. The cathode is sealed and fixedly connected with the upper and lower end covers. The cathode liner, the upper end is inserted between the cathode liner pressure ring and the cathode, and the lower end is inserted between the cathode and the lower end cover. While improving production efficiency and reducing system investment cost and operation cost, the equipment also brings great benefits to the recycling and treatment of electrolytic solution.

The invention provides a die-casting forming assembly, a die-casting machine and a die-casting forming method, and can be applied to the technical field of die casting. The die-casting forming assembly comprises a die unit, an injection unit and a first heating unit, the die unit comprises a male die core and a female die core, the male die core and the female die core form a cavity in a die assembly state, the cavity is communicated with the injection unit, and cooling runners allowing cooling liquid to flow are formed in the male die core and the female die core; the injection unit is used for injecting the metal slurry in a semi-solid state into the cavity; wherein the first heating unit is used for heating the metal slurry in the cavity, so that the metal slurry in the cavity is kept in a semi-solid state; and the cooling unit is used for introducing cooling liquid into the cooling runner after injection filling is completed, so that the metal slurry in the cavity is cooled and formed. The die casting with uniform crystallization, compact structure and uniform surface quality can be obtained, and the surface quality of the die casting is effectively improved.

The utility model relates to an off-line verification device for a closed safety valve, and belongs to a safety valve inspection and detection device. The bottom of the oil jack is fixedly connected with the upper portion of the base flat plate through a bolt, a piston of the oil jack penetrates through the verification platform, and the top of the piston of the oil jack is fixedly connected with the lower portion of the verification disc. The clamping hook is in sliding connection with the clamping hook slide way of the verification platform, and the lower end of the sealing cover is arranged above the base flat plate and located between the inner sealing ring and the outer sealing ring. The sealing device has the advantages that the structure is novel, the safety valve is clamped through the clamping device, the sealing device formed by the sealing cover, the inner sealing ring and the outer sealing ring is safe and reliable in a closed environment, the sealing pressure test and the leakage rate test are met, the defect of manual detection is overcome, the requirement for transformation and upgrading of detection equipment is met, and the precise verification function is enhanced.

The invention relates to an alloy steel hot-rolled coil plate for a bearing as well as a preparation method and application of the alloy steel hot-rolled coil plate. The coil plate comprises the following components in percentage by weight: 0.95-1.15% of C; 0.15% to 1.30% of Si; 0.20% to 1.20% of Mn; 0.015% to 0.080% of Al; p < = 0.012%; s < = 0.009%; 1.25% to 5.0% of Cr; 0 to 1.00% of Mo; 0 to 0.50 percent of V; 0 to 0.50 percent of Ni; 0 to 0.060 percent of Nb; cu: less than or equal to 0.080%; ti: less than or equal to 0.005%; h: < = 0.0002%; n < = 0.008%; o: < = 0.0012%; as: less than or equal to 0.010%; less than or equal to 0.002% of Pb; ca is less than or equal to 0.003%, and the balance is Fe and impurity elements. The steel has the advantages of good comprehensive performance and capability of meeting the use requirements of the bearing steel.

The utility model provides a circuit board defilming spray tray structure, which comprises a clamp and two spray trays symmetrically arranged on two sides of the clamp by taking the clamp as a center, a circuit board is loaded on the clamp and moves in a vertical state between the two spray trays through a conveying mechanism, each spray tray comprises a plurality of spray pipes uniformly distributed along the conveying direction of the clamp, and the spray pipes are arranged on the clamp. The spray pipes are vertically arranged, a plurality of uniformly distributed nozzles are arranged along the vertical direction, the spray pipes are parallel to the circuit board on the clamp, the nozzles and the spray pipes are obliquely arranged, and the inclination directions of the nozzles on the adjacent spray pipes are staggered. According to the utility model, the film is removed by adopting a vertical film removing mode, and the nozzles are obliquely arranged and do not vertically spray on the circuit board, so that an etching resistance agent layer at a dead angle position or a position with smaller line width and line distance of the circuit board can be completely removed, slag inclusion is avoided, and the film is ensured to be clean and thorough.

The present invention provides a high-pressure defilming device for circuit boards, including a frame, a fixture, a defilming module, a filter module 1, and a filter module 2. The frame includes a bottom frame and an upper frame arranged above the bottom frame, a reaction tank is arranged inside the upper frame, and a medicine water tank is arranged inside the bottom frame. The fixture moves in a vertical state in the reaction tank through a conveying mechanism. The defilming module is arranged in the reaction tank, including two spray discs symmetrically arranged on both sides of the fixture with the fixture as the center; the filter module 1 is used for coarse filtration of the suspension, and the filter module 2 finely filters the suspension through multiple filtrations; the defilming liquid after filtration and purification is connected to the defilming module, and the medicine water tank, the filter module 1, the filter module 2 and the defilming module form a filtering circulation system for the defilming liquid. The present invention uses inclined spraying to remove the membrane, and the defilming is clean and thorough; and the defilming module is integrated with the filtering device, so as to realize the recycling of the defilming liquid, save resources, and is suitable for defilming of various circuit boards, with a wide range of uses.