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34results about How to "Increase absorption" patented technology

Flow guide layer of paper diaper with lawn structure and preparation method of flow guide layer

The invention relates to a flow guide layer of a paper diaper with a lawn structure. The flow guide layer comprises a base cloth, an adhesive layer and an ultra-short fiber layer; the ultra-short fiber layer is a layer of low density ultra-short fibers vertically arranged, and through a method of static electricity implantation, the ultra-short fibers are evenly fixed on the base cloth. A three-dimensional structure is formed; gaps between the ultra-short fibers arranged vertically are large, when penetrating a surface layer to reach the flow guide layer, liquid longitudinally diffuses along the fibers more arranged on the base cloth in the longitudinal direction, after permeating down, the liquid can be quickly captured by a fluffy structure with a certain thickness, and after temporary storage, the liquid diffuses immediately, and is absorbed by a central layer; the fluffy flow guide structure can increase gross absorptive amount of the liquid, and accelerate liquid absorption of SAPin the longitudinal direction of a product, and possibility of return-permeating is reduced; less of fiber dosage is achieved; and collapse when the paper diaper is wet is reduced, utilization efficiency of the SAP is improved, and at the same time, the return-permeating is reduced.
Owner:上海纺织建筑设计研究院有限公司

Method for improving magnetic performance of copper-containing oriented silicon steel

The invention relates to a method for improving the magnetic performance of copper-containing oriented silicon steel. The method comprises the steps that S1, steel making, secondary refining and continuous casting are conducted, and then a plate blank with the following components including, by weight, 0.040%-0.055% of C, 3.00%-3.40% of Si, 0.1%-0.30% of Mn, 0.006%-0.030% of ALs, 0.4%-0.7% of Cu, 0.006%-0.012% of N, smaller than or equal to 0.025% of S and the balance Fe and inevitable impurities is obtained; s2, the plate blank is subjected to hot rolling and primary cold rolling; s3, after primary cold rolling, performing decarburization annealing under the protection of a nitrogen and hydrogen wet atmosphere with the temperature of 800-900 DEG C and the ratio of hydrogen partial pressure to water vapor partial pressure of 0.2-0.5, so that the oxygen content in the copper-containing oriented silicon steel is 700-900 ppm; s4, carrying out secondary cold rolling after decarburization annealing, and then carrying out cold coating of a magnesium oxide separant; and S5, after cold coating of a magnesium oxide separant, high-temperature annealing, discharging, stretching, flattening and annealing are carried out. According to the method for improving the magnetic performance of the copper-containing oriented silicon steel, the magnetic induction intensity B8 of the copper-containing oriented silicon steel is not smaller than 1.9 T, the magnetic performance of the copper-containing oriented silicon steel is improved, the profit per ton of steel is increased, and the application range of the copper-containing oriented silicon steel is widened.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Laser-loaded array catapulting process method

The invention discloses a laser-loaded array catapulting process method. The method comprises the steps of firstly, combining a whole to-be-catapulted object, an ablation coating, a binding agent anda light-transmitting back plate into a whole to obtain a catapulting module, compressing and emptying air between layers in the catapulting module, and then cutting the whole to-be-catapulted object on the catapulting module into independent to-be-catapulted individuals through an automatic machining platform. When the catapult module is moved to a proper position of a laser light path, the size of laser spots and pulse energy is set according to needs, the laser is started to emit laser, the next catapulted object can be catapulted by the laser when the catapult module is moved every time, and thus continuous and automatic array catapulting can be achieved. According to the array catapulting method, plasma emission is excited through the laser ablation coating, so that the tiny sheet-shaped to-be-catapulted material is catapulted by means of the counter-acting force of the laser ablation coating, and the array catapulting method is not limited by the material; an excellent acceleration effect is achieved, and the speed can reach 1000m/s or above within 0.2 microsecond; and the method is simple in preparation process, low in cost, easy to automate, high in accuracy and high in safety.
Owner:UNIV OF SCI & TECH BEIJING

Backward-tilting multi-wing centrifugal ventilator

The invention discloses a backward-tilting multi-wing centrifugal ventilator. The backward-tilting multi-wing centrifugal ventilator comprises a ventilator main body, wherein an explosion-proof motoris fixedly arranged on the outer surface of one side of the ventilator main body; a worm board is arranged at one side of the explosion-proof motor; a current collector is arranged inside the worm board; an impeller is fixedly arranged inside the current collector; a rotating shaft is arranged at the center inside the impeller; in addition, fan wings are fixedly arranged on the outer surface of the rotating shaft; a vertical baffle is fixedly arranged at the center of the outer surface at one side of each fan wing; a connecting port is formed in the upper end of the outer surface of one side of the worm board; an operation box is arranged on the outer surface of one side, close to the connecting port, of the worm board. The backward-tilting multi-wing centrifugal ventilator disclosed by the invention is provided with the vertical baffles, a dust outlet and a filtering plate; a suction force and a centrifugal force can be improved and an operation process is facilitated; in addition, air can be filtered and finally dust can be collected and discharged, so that a dust raising effect is effectively avoided and a better use prospect is brought.
Owner:JIANGSU HENGKANG ELECTRICAL
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