5results about How to "Avoid slag inclusions" patented technology

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 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 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 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.