8results about How to "Control splash" patented technology

The invention relates to the technical field of road construction, and provides a road maintenance crack repairing and flattening device which comprises a base, an inclined tamping assembly is arranged in the middle of the bottom end of the base and comprises a fixing plate fixedly arranged at the bottom end of the base, and a first driving chain wheel and two first rotating shafts are arranged on one side of the fixing plate; first connecting rods are arranged on the outer surfaces of the first rotating shafts, second connecting rods are arranged at the bottom end of the base, a third rotating shaft is arranged at the lower ends of the two first connecting rods, a fourth rotating shaft is arranged at the lower ends of the two second connecting rods, and mounting plates are arranged at one ends of the third rotating shaft and the fourth rotating shaft; arc-shaped plates capable of moving in an opening and closing mode are symmetrically arranged at the lower end of the mounting plate. According to the crack repairing and flattening device for road maintenance, the V-shaped structure capable of being adjusted to be opened and closed is matched with the inclined tamping assembly, multidirectional compaction and rapid surface leveling of a crack repairing material are achieved, and the compactness of a repairing layer and the flatness of a road surface are improved.

The invention relates to the technical field of quenching equipment, and in particular to a ductile iron grinding ball quenching equipment, comprising a quenching pool body, wherein the bottom inner wall of the quenching pool body is rotatably connected to a first turntable, the lower end outer surface of the quenching pool body is fixedly connected to a motor, the output end of the motor passes through the lower wall of the quenching pool body and is fixedly connected to the first turntable, the upper surface of the first turntable is fixedly connected to a plurality of telescopic units, the plurality of telescopic units are respectively located at the center and around the upper surface of the turntable, the upper parts of the plurality of telescopic units are hinged with an articulated frame, and the upper part of the articulated frame is fixedly connected to a ball receiving unit; the invention solves the problem that, when quenching ductile iron grinding balls, high-temperature grinding balls are usually poured from a quenching frame into a quenching pool through a pouring device, and at this time, the quenching liquid will splash the quenching oil to the area outside the quenching pool due to the sudden fall of the grinding balls and the temperature difference, which not only causes waste but also pollutes the working environment.

The application relates to the technical field of plastic particle processing, and discloses a granulating device for processing foamed materials, which comprises a first support, a die head, a flow uniformizing plate and a pelletizing assembly, the die head is fixedly connected with the first support; the flow uniformizing plate is fixedly connected with the surface of the die head where extrusion holes are located, a plurality of first through holes are formed in the flow uniformizing plate, the first through holes correspond to the extrusion holes of the die head in a one-to-one manner, and the depths of the plurality of first through holes decrease in turn along the radial direction of the flow uniformizing plate; the pelletizing assembly is used for pelletizing the pull strips extruded by the flow uniformizing plate. The first through holes with different depths provide differentiated flow resistance for the melt flow rate at different positions, so that the melt flow rate at the outlets of the first through holes tends to be uniform, that is, the instantaneous extrusion amount tends to be equal, thereby improving the uniformity of the diameters of the pull strips, improving the problem of uneven thickness of the pull strips caused by the extrusion amount deviation of the edge holes and the middle holes, and improving the size consistency of the granulating particles and the product quality.

The utility model relates to the technical field of kettle-bell grinding and polishing, in particular to a full-automatic grinding and polishing workstation for kettle-bells, which comprises a bottom plate and a sand blasting device, a protective shell is arranged on the upper side of the bottom plate, a controller is arranged on the front side of the protective shell, an electric cabinet is arranged on the upper side of the bottom plate, and a box plate is arranged on the front side of the protective shell. A limiting groove is formed in the upper side of the bottom plate, a conveying belt is arranged on the upper side of the protection shell, a plurality of grooves are formed in the outer side of the conveying belt, kettle-bells are arranged in the grooves, a kettle-bell bottom outer side grinding part is arranged on the upper side of the protection shell, a sand blasting supporting assembly is arranged on one side of the conveying belt, and a sand blasting assembly is arranged on the upper side of the bottom plate. The automatic sand blasting machine can meet the machining requirements of kettle bells of different specifications, fine grinding and comprehensive and uniform sand blasting treatment on the outer sides of the bottoms of the kettle bells are achieved through accurate mechanical structure design and an automatic control system, and the production efficiency and the product quality are improved.

The invention discloses a method for smelting cold-rolled quenched and tempered saw blade steel from high-silicon-titanium vanadium-containing molten iron. The method comprises the steps of desulfurization, converter smelting, LF refining and continuous casting. In the step of converter smelting, 6.25 to 9.09 kg / t of light-burned dolomite and 18.75 to 21.21 kg / t of machine-burned ore are added from smelting oxygen supply; the operation of small oxygen pressure and low lance position is adopted in the early stage of blowing, the oxygen pressure is controlled to be 0.60-0.75 Mpa, and the oxygen supply amount of a top lance is 30000-32000 Nm < 3 > / h; in the initial stage of C-O reaction, the gun lifting position is 300-400 cm; and when Si + Ti oxidation is finished and slag pieces are splashed outwards from the furnace mouth, the lance is lifted, oxygen supply is stopped, and earlier-stage slag is poured. According to the method, splashing caused by high silicon and high titanium and erosion to the converter lining are effectively controlled, the service life of the converter lining is prolonged, and accidents such as safety, smoking and environmental protection caused by splashing are reduced; and meanwhile, the yield of the casting blank is also ensured.

This invention discloses a spray gun and a cold spraying device incorporating the spray gun. The spray gun includes a spray gun body, a nozzle, a powder channel, a filter assembly, an air purifier, and a cooling structure. The nozzle is connected to one end of the spray gun body. The powder channel is disposed within the spray gun body, with one end connected to the nozzle and the other end having a powder inlet. The filter assembly is installed at the powder inlet. The air purifier is located at one end of the spray gun body and is sealed and connected to the powder channel. The cooling structure is integrated inside the spray gun body and fits snugly against the powder channel. The spray gun and cold spraying device of this invention effectively remove impurities from powder and air through the dual purification effects of the spray gun filter assembly and the air purifier. Simultaneously, the circulating cooling function of the cooling structure precisely controls the operating temperature of the spray gun, significantly extending the service life of the spray gun and equipment and ensuring long-term stable operation of the equipment.

The utility model discloses a guide wheel production paint spraying device which comprises a base, a mounting box, a shielding mechanism, a spraying mechanism, an adjusting mechanism, a second rotating motor and a placing mechanism, the mounting box is arranged on the base, a square open groove is formed in the front face of the mounting box, and a rotating door is arranged on the mounting box; the shielding mechanism is mounted on the mounting box and comprises a top ring, a cross rod and an arc-shaped plate, and the arc-shaped plate corresponds to the square open groove in position; the top ring is mounted at the top of the arc-shaped plate; the cross rod is mounted in the middle of the top ring; the spraying mechanism is arranged on the mounting box, and the adjusting mechanism is mounted on the mounting box; the spraying mechanism is mounted on the adjusting mechanism; and the placing mechanism is rotationally connected with the shielding mechanism. Therefore, liquid drop splashing in the paint spraying process is effectively controlled, diffusion of harmful chemical substances in the working environment is reduced, meanwhile, it can be guaranteed that the working table top is clean, and the cleaning and maintaining time is saved.

The present invention provides a composite magnetic field assisted ultra-high speed laser cladding processing method, comprising: providing a metal workpiece to be clad; loading the clad metal powder into a powder feeder; mounting the metal workpiece on an ultra-high speed laser cladding processing device and fixing it; turning on a transverse magnetic field generating device to generate a transverse magnetic field perpendicular to the axial direction of the laser beam; turning on a longitudinal magnetic field generating device to generate a longitudinal magnetic field along the axial direction of the laser beam; turning on the ultra-high speed laser cladding processing device, and completing the cladding processing process under the coordination of the transverse magnetic field and the longitudinal magnetic field. The present invention utilizes the force effect and thermal effect of the magnetic field to provide a composite energy field in the ultra-high speed laser manufacturing process so that the surface of the material is subjected to thermal and mechanical synergy, and can control or even eliminate manufacturing defects such as cracks and pores in the cladding layer, thereby optimizing the coating surface quality and comprehensive performance of the ultra-high speed laser cladding layer.