87results about How to "Good washing effect" patented technology

The embodiment of the invention provides a printed circuit board cleaning machine, belonging to the technical field of printed circuit cleaning. The cleaning machine comprises a chassis, a master control system, a backing water treatment system, a cleaning system, a drying system, a waste water treatment system and a water detection system; the systems are all arranged in the chassis, the main control system is electrically connected with other systems and controls the operation of other systems; wherein, a water inlet and a water outlet are arranged on the backing water treatment system, the water outlet of the backing water treatment system is connected with the cleaning system, and the water outlet of the cleaning system is connected with the waste water treatment system; the drying system is connected with an air inlet of the cleaning system; the detection ends of the water detection system are respectively arranged on the water outlet ends of the backing water treatment system and the cleaning system, which are used for detecting the effluent water of the backing water treatment system and the cleaning system. The cleaning machine has the advantages of high cleaning efficiency, good cleaning effects, cleaning water saving and environmental protection.

A delay valve able to automatically remove the water scale is composed of valve body, valve core module and valve cover. It features that its flexible damping valve core consisting of two half-open dampers and spring is combined with the steel needle and big and small sealing membranes to form a multi-sealing scheme, realizing the float, flexible and delayed water discharge, automatically controlled sealing, and automatically removing water scale.

The invention belongs to the washing machine field and especially relates to a cyclic spray control method and a washing machine. The washing machine comprises an inner cylinder, an outer cylinder anda cyclic spray system. The cyclic spray system cyclically sprays washing water to the inner cylinder and/or the outer cylinder to scour and wash the inner wall of the inner cylinder and/or the outercylinder. The control method comprises the following steps that the washing machine makes the cyclic spray system start; the washing water is cyclically sprayed to the inner cylinder and/or the outercylinder; and the inner wall of the inner cylinder and/or the outer cylinder is scoured and washed. The method and the washing machine have advantages that the cleaner washing water after clothes washing is used to wash the dirty areas of the cylinder wall of the inner cylinder and/or the inner wall of the outer cylinder of the washing machine, cost is reduced, water resource wastes are decreased,and environmental protection performance is achieved; and through arranging a detection unit used for detecting the turbidity value of the washing water, according to the detected turbidity value ofthe washing water, the cyclic spray system is controlled to be started, and control precision is high and reasonable.

The present invention discloses a cleaning powder. Its composition includes (by wt%) 65-80% of food additive (dicarbonate) (GB1887-1998), 10-20% of detergent powder (GB9985-2000) and 5-20% of pulverin. Said invention is suitable for dry-cleaning and water-washing various blots, grease stains and medical ointment contaminations. Besides, said invention also provides its preparation method.

The invention relates to the field of coal mining equipment, in particular to an electromagnetic type jigging machine. The electromagnetic type jigging machine comprises a machine frame, a passing tank is installed above the machine frame, an ore supply pipe is installed at one end of the passing tank, and a discharge outlet is formed in the other end of the passing tank; the bottom of the passingtank communicates with two taper hoppers; and supports are installed inside the taper hoppers and provided with electromagnets, the supports are downwards connected with the bottoms of the taper hoppers through sliding rods, a vibrating plate is arranged below each support and provided with positioning holes allowing the corresponding sliding rods to penetrate through, the inner walls of the positioning holes are attached to the outer walls of the sliding rods, and magnets are installed on the vibrating plates. According to the electromagnetic type jigging machine, vibration is carried out inside the taper hoppers by effectively adopting an electromagnetic vibrating mode, and washing is conducted on coal mine through vertical alternating medium fluid; and compared with the traditional mode that the taper hoppers vibrate by adopting a cam to achieve the vertical alternating medium fluid, vibration is small, the machine is not prone to being damaged, the service life of the machine is prolonged, noise generated in the production process is low, and harm to the auditory system of field personnel is reduced.