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142results about How to "Eliminate formation" patented technology

Removable moisture-wicking pillow case covering with Velcro(R) fastened oppositely-disposed, different sized openning thereinto

A removable moisture-wicking pillow case covering for a pillow for absorbing moisture and for maintaining the loft of the pillow upon which a person's places his or her sweat or perspiration on the head, neck and hair when in bed, or when laying down to rest, comprising a rectangularly-shaped sack having a volume which is slightly smaller than the volume of the pillow inserted and housed therein, the sack having four corners thereof rounded to eliminate the formation of sharp corners on the outside of the sack and for providing a means for registration of the pillow therein, the sack being made of a cloth base having a plurality of threads anchored therein and extending outwardly therefrom from about 3/16 to ⅜ of an inch and continuing through to the opposite side of the cloth base to form a plurality of relatively short loops extending therefrom, and having a pair of oppositely disposed openings into the sack along the seams thereof, one of the oppositely disposed openings being smaller than the other one, the peripheral lips of each of the openings having a pair of lipped portions having a Velcro® fastening system secured thereto so that when the lips are folded over 180 degrees and directed into the inside of the opening to the sack, the hook portion of the Velcro® fastening system when pressed together is operatively fastened to the oppositely-disposed loop portion of the Velcro® fastening system.
Owner:TAYLOR MICHAEL STEVEN

Iron and aluminum intermetallic compound and steel impulse fusion welding method

The invention discloses a method for fusion-welding iron-aluminum inter-metallic compounds and steel through pulses. The invention adopts Cr25Ni13Mo2Nb austenite steel welding wires as filling materials and inertia gas protection. The invention takes argon tungsten pulsed arc welding to weld the iron-aluminum inter-metallic compounds and carbon steel or stainless steel. The diameter of the austenite steel welding wires is 1.6-3.0 mm, the inertia gas protection is argon, the processing parameters of the argon tungsten pulsed arc welding are that base current is 70A-180A, pulse current is 100A-250A, pulse duration is 0.15s-0.60s, welding voltage is 12V-18V, argon flow is 10L/min-16L/min, the argon flow of back protecting gas is 2L/min-5L/min, and distance between a jet of a welding torch and a component is 6mm-12mm. The invention can weld the iron-aluminum inter-metallic compounds and the dissimilar materials of the steel to obtain welding connectors with non-cracks and non brittle phases under the condition of non-heating. The invention has the advantages of strong applicability, convenient operation, the invention is convenient for popularization and application, the invention is in particular suitable for welding the iron-aluminum inter-metallic compounds and the carbon steel or the stainless steel, and applied to weld the iron-aluminum inter-metallic compounds and other low-alloy structural steel and heat resistant steel.
Owner:SHANDONG UNIV

Zinc ion battery liquid metal composite negative electrode and preparation method and application thereof

The invention discloses a zinc ion battery liquid metal composite negative electrode and a preparation method and application thereof. The composite negative electrode comprises a zinc metal matrix and a liquid alloy layer, and the liquid alloy layer is arranged on the surface of the zinc metal matrix. The characteristic of low solubility of zinc metal in the liquid gallium-based alloy is utilized, the zinc metal can be used as an electrochemically inert liquid coating material, the liquid alloy layer is formed by coating the surface of the zinc metal matrix with the liquid gallium-based alloy, and zinc ion flow, close to the surface of the negative electrode, of electrolyte can be well homogenized. Meanwhile, zinc is in a saturated state in the liquid gallium-based alloy, so zinc in the circulation process finally uniformly nucleates and grows on the surface of the zinc metal matrix, and dendrites are prevented from being formed on the surface of the composite negative electrode. Meanwhile, by compounding with gallium and indium with high hydrogen evolution overpotential, the corrosion resistance of the composite zinc negative electrode can be improved, the problem of side reactions such as negative electrode corrosion hydrogen production in the zinc ion battery is relieved, the cycle life of the zinc ion battery is prolonged, and the use stability and safety of the battery are improved.
Owner:CENT SOUTH UNIV

Ultrasonic vibration micro-foaming injection moulding device and ultrasonic vibration micro-foaming injection moulding method for plastic inspection well

The invention relates to an ultrasonic vibration micro-foaming injection moulding device and an ultrasonic vibration micro-foaming injection moulding method for a plastic inspection well, and relates to the field of injection moulding machining for plastic inspection wells. The ultrasonic vibration micro-foaming injection moulding device comprises a fixed die plate, a movable die plate, a die core and hot runner system, an ultrasonic vibration device and a control system, wherein die cores comprise a main die core and a side pulling core, and a die cavity is arranged among the die cores, the fixed die plate and the movable die plate. According to the invention, a cavitation foaming effect of ultrasonic vibration on plastic is utilized, the die cavity is filled with a plastic melt through injection moulding to reach 85-90% of the volume of the die cavity at first, and then the plastic melt in the die cavity is subjected to overall ultrasonic vibration and cavitation micro-foaming through the main die core provided with an ultrasonic vibration mechanism, thus micro-foaming injection moulding machining for the plastic inspection well is realized. The ultrasonic vibration micro-foaming injection moulding device disclosed by the invention is simple to operate, high in moulding accuracy, and capable of saving plastic raw materials by 10-15%, reducing an injection moulding pressure by 60-80%, saving energy, avoiding or reducing generation of weld marks, enhancing the product strength and prolonging the service life.
Owner:江苏正林环保科技有限公司
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