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587results about How to "Increase internal pressure" patented technology

Low-temperature two-step method for preparing composite anatase type titanium dioxide visible light catalyst

The invention discloses a low-temperature two-step method for preparing a composite anatase type titanium dioxide visible light catalyst, and belongs to the visible light catalyst. The preparation method comprises the following steps of: 1, adding titanium-containing precursor into alcohol, uniformly mixing and then adding a dopant, fully stirring, then adding an inhibitor and de-ionized water respectively, and performing water bath heating to prepare colloid containing titanium and doping element; and 2, cooling the prepared colloid to room temperature, transferring into a high-pressure-resistant container, adding a thermal decomposition type compound into the colloid, then quickly sealing the container, heating to perform reaction, preserving heat, obtaining precipitate after the reaction is finished, filtering the precipitate and washing with the de-ionized water and then drying to prepare the composite anatase type titanium dioxide visible light catalyst. The method has the advantages that: 1, the catalyst is prepared under the condition of 80-100 DEG C, and the energy consumption is favorably reduced during preparation; and 2, subsequent high-temperature treatment is not required in the method, the defect of high probability of losing the doping element through the high-temperature treatment is avoided, and the photo-catalytic performance is favorably improved.
Owner:CHINA UNIV OF MINING & TECH

Composite inner and outer hydraulic pressure forming method for high-branch height thin-wall three-way pipe

ActiveCN102921792AReduce frictionImprove axial critical wrinkling stressInternal pressureHigh pressure
The invention discloses a composite inner and outer hydraulic pressure forming method for a high-branch height thin-wall three-way pipe, belongs to the technical field of inner high pressure forming and aims to solve the problem that the branch height of the formed three-way pipe is limited in the conventional inner high pressure forming method. The method comprises the following steps of: filling liquid media inside a pipe billet and discharging gases through a supercharger, and moving a left-side punch and a right-side punch forwards to finish pipe end seal, so that inner pressure of the pipe billet is insufficient, and the pipe billet deforms; filling liquid media on the outer side of the pipe billet through holes on a die, wherein outside hydraulic pressure is sealed by a sealing groove on the die and a sealing ring on the punch, so that the pipe billet has plastic deformation under the action of inner pressure, outer pressure, axial feeding of the left and right punches and retreating of the branch punch, and obtaining the high-branch height three-way pipe. Compared with the traditional inner high pressure forming method, the method has the advantages of high branch pipe height and high pipe surface quality, and is particularly suitable for thin-wall three-way pipe forming.
Owner:抚顺三方机械制造有限公司

Universal air-cushioning material

InactiveUS20070131575A1Broad mutual contact areaStable cushioning functionBagsSacksCushioningWadding
The invention intends to cheaply provide a cushioning material that can pack articles to be packed different in shapes and dimensions with a simple structure and stably and that can withstand transportations for long periods under severe conditions. A universal air cushioning material is formed in such a manner that side portions forming end portions of above and below and left and right external frames of two superposed rectangular synthetic resin films made of a same raw material are thermally fused and, between the side portions, an intermediate portion thereof is arbitrarily thermally fused in accordance with a dimension and shape of the article to be packed to dispose a plurality of partitioned peripheral portions; at arbitrary positions in the vicinity of the side portions of the peripheral portions, at least a pair of notches is disposed horizontally symmetrically in accordance with a dimension and shape of the article to be packed and, in the peripheral portions, at least one air passage port is disposed to form a plurality of mutually communicated air chambers to enable to arbitrarily vary a contact area between the air chambers and the article to be packed or an inner wall of the transporting vessel; to at least one of the air chambers an air inlet port is disposed to inject air from the air inlet port to expand an entirety of the air chambers; and thereby an inside thereof is pressed against the article to be packed and an outside thereof is pressed against an inner wall of the transporting vessel.
Owner:ABE TOMEMATSU

Fuel-cell power generation system for supplying hydrogen by hydrolyzing magnesium hydride

The invention relates to a fuel-cell power generation system for supplying hydrogen by hydrolyzing magnesium hydride. The fuel-cell power generation system comprises the combination of hydrogen generation by hydrolyzing MgH2 and a proton membrane fuel cell. The fuel-cell power generation system utilizes a Kipps apparatus principle and can realize a hydrogen generation immediate supplying/stopping technology. A hydrolysis reactor water bath (1) is communicated with a fuel cell cooling water bath (7) by a pipeline; working residual heat of a fuel cell set is used for heating a reactor to carry out hydrolysis reaction. In the working process, the water baths are communicated to keep the working temperature of a hydrolysis reactor and the working temperature of a fuel cell constant so as to be good for carrying out the reaction. The hydrolysis reactor is connected with a proton exchange membrane fuel cell by a pipeline; water generated by the working of the proton membrane fuel cell can be balanced with water consumed by hydrolyzing the MgH2 so as to realize the cyclic utilization of the water; theoretically, the water does not need to be injected from the outside. A hydrolysis reaction product, namely magnesium hydroxide sediments, can be filtered and recycled by a hydrolysis reactor filtering machine and is industrially utilized to reduce the cost.
Owner:HARBIN INST OF TECH AT WEIHAI
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