5results about How to "No splash" patented technology

The invention discloses an intelligent laser cladding system and method for a stainless steel plate of a bridge support, and aims to realize accurate and efficient cladding processing and improve the surface performance of a material. The system comprises a six-axis multi-joint robot, a laser tracker, a laser cladding head, a wire feeding mechanism and an electrical control system. The robot controls the laser cladding head to move, the laser tracker monitors and adjusts the cladding process, the laser cladding head provides laser energy, the wire feeding mechanism supplies cladding wires, and the electric control system coordinates all the components to work. The method comprises the steps of matrix pretreatment, cladding system parameter setting, intelligent laser cladding and cladding layer finish machining and polishing treatment. By accurately controlling conveying of laser beams and metal wires and motion parameters of all parts, intelligent high-quality cladding machining of workpieces made of different materials and in different shapes is achieved, and the device is suitable for cladding of stainless steel plates with planes, convex surfaces and concave surfaces. According to the system and the method, the cladding precision and efficiency are improved, the cost is reduced, and the system and the method have wide industrial application prospects.

The invention relates to the technical field of molten iron smelting, in particular to a method for smelting high-silicon and high-manganese molten iron under low iron loss, which comprises the following steps: loading high-silicon and high-manganese molten iron, scrap steel, iron blocks and slag steel into a converter; slag remaining operation is adopted for smelting, the slag remaining amount of an upper furnace is controlled, slag splashing furnace protection is conducted after tapping, the remaining slag serves as a slagging material for blowing of the next furnace, and a gun is lowered for sparking blowing; a solvent is added in the earlier stage of blowing, the solvent comprises lime, unfired dolomite and magnesium balls, the lance position in the earlier stage of blowing is controlled to be 2200 mm, and when the oxygen blowing amount is 4200-4600 m < 3 >, one-time lance lifting operation is carried out; and secondary gun lowering is carried out after primary gun lifting, the gun position is controlled to be 2100 mm, feeding is carried out after slag coming, splashing is pressed, the gun position is lowered, and carbon catching and steel tapping are carried out in the later period of blowing. The blowing process is stable and free of splashing, the final temperature and oxygen control are stable, and meanwhile, under the condition that the heat of the converter is not rich, ordinary steel in a refining route can be smelted through high-silicon high-manganese molten iron chemical heating.

This invention discloses a household absorption air conditioner / generator, belonging to the field of integrated refrigeration, air conditioning, and power generation technology. The device eliminates the traditional compressor, installing a 3-6KW direct-drive permanent magnet micro-generator in the original compressor location, equipped with a planetary or turbine gearbox. The core heat exchange component uses a graphite titanium plate heat exchanger, and the outer casing is made of titanium. Calcium chloride-ammonia water is used as the working fluid pair, with the fluids in the condenser and absorber in a gas-liquid two-phase state. An external liquid pump and solution pump are provided, and the plate condenser has a vacuum port; an external micro-vacuum pump draws a vacuum to reduce the vaporization temperature. The device achieves switching between cooling, heating, and standalone power generation modes via a circuit board, with the generator autonomously powered by a condenser fan. Its heat transfer coefficient reaches 6000-7000W / (m²・K), water consumption is only 5%-10% of traditional equipment, and energy efficiency is 60%-90%. Cooling and heating switching is achieved by reversing the external circulation pump. The product is suitable for areas without electricity, islands, deserts and other scenarios. It can be used for both military and civilian purposes, and can meet the dual needs of household air conditioning and daily electricity use. It is energy-saving, environmentally friendly and has a broad market prospect.

The present invention provides a DC welding control method and device, the method comprising: obtaining the transition time of the molten droplet, determining the molten droplet transition time deviation value based on the preset DC welding standard parameters; if the deviation value exceeds the first preset range, adjusting the arcing stage parameters, re-determining the deviation value, so that the deviation value is within the first preset range; obtaining the arcing time and arcing energy after parameter adjustment, and determining the arcing time deviation value and arcing energy deviation value based on the DC welding standard parameters; adjusting the short-circuit stage parameters according to the arcing time deviation value and the arcing energy deviation value. By adjusting the arcing stage parameters, the molten droplet transition time is reasonable, the arc is stable, and no large spatter is generated; by adjusting the short-circuit stage parameters to match the arcing stage, the force of the wire breaking at the moment of transition is small, and the amount of spatter generated during the welding process is further reduced, thereby reducing the later cleaning, improving the welding efficiency, and improving the welding effect.

The application discloses a double-flow-channel gas protection TIG welding gun, and relates to the technical field of welding devices.The welding gun comprises a tungsten electrode structure, a first pipeline structure, a second pipeline structure and a jet pipeline structure arranged in sequence from top to bottom, the first pipeline structure is provided with an outer protective gas inlet, the first pipeline structure is provided with a first outer protective gas channel, the second pipeline structure is provided with an inner protective gas inlet, the second pipeline structure is provided with a second outer protective gas channel and a first inner protective gas channel, the tungsten electrode structure is arranged in the jet pipeline structure, the tungsten electrode structure comprises a mounting seat and a tungsten needle, the jet pipeline structure and the mounting seat are provided with a third outer protective gas channel, the tungsten needle is arranged in the mounting seat, the length direction of the tungsten needle is perpendicular to the length direction of the first pipeline structure, the mounting seat and the tungsten needle are provided with the second inner protective gas channel, and one end of the tungsten needle extends out of the jet pipeline.The welding gun can realize double-gas protection, reduce spatter and form a beautiful weld.