2results about How to "No static electricity" patented technology

The invention provides a closed expansion water tank and a cleaning method thereof, and relates to the technical field of expansion water tanks, the closed expansion water tank comprises a tank body, the tank body is divided into four cavities through three partition plates with holes in the tank body, an access hole is machined in an upper panel of the tank body, a flange is welded to the access hole, and the access hole is blocked through a cover plate. The cleaning method comprises the steps that sodium bicarbonate is made into 30-120-mesh composite material crystal particles through a special technology, and the hardness of the crystal particles is Morse 2.3-3.0; the crystal particles are driven by air pressure through an access hole formed in the upper portion of the tank body, and dirt is removed from the interior of the expansion water tank through blasting, impact, friction, stripping and cutting generated at the moment of collision in a physical flexible striking mode. A new cleaning technology is adopted, the scrapped expansion water tank is recycled, and recycling of waste products is achieved; no dust is generated in the cleaning process, and food-grade products are free of chemical pollution.

The utility model discloses a double -faced cleaning device of electronic PCB board detection, including electric conveyer belt, the upper and lower surface of electric conveyer belt all is provided with the placement groove for placing PCB board, and the upper and lower end of PCB board all is provided with fan, and one side of one of fan is provided with the press stick piece, the press stick piece includes connecting rod and press stick, and one end of connecting rod sets up press stick, and the outer surface of press stick is rolling connection with the upper surface of PCB board. The utility model starts electric conveyer belt and places PCB board in the placement groove, and after moving to between two fans, will be the dust impurity of fan clean surface, compares traditional brush cleaning, can avoid scratching to PCB board surface, and at the same time will not produce static electricity to PCB board friction, the upper and lower end of PCB board all is provided with ion wind stick, is used for eliminating the static electricity on PCB board surface before cleaning, and at the same time with the dust catcher two combination avoids dust again being adsorbed by PCB board.