5results about How to "Good filling effect" patented technology

This invention discloses a method for preparing high-entropy ceramic matrix composites using a reactive infiltration process, belonging to the technical field of ceramic matrix composites. The steps are as follows: at least four single-component carbides are ball-milled and mixed with a carbon source, then dispersed in a dispersion liquid to obtain a slurry; continuous fibers are woven into a preform, and an interface layer and a matrix layer are deposited to obtain a semi-dense composite material; the slurry is introduced through vacuum or pressure impregnation; and a high-entropy carbide matrix is ​​generated in situ and densified by reactive infiltration after embedding with a transition metal and its alloy. This invention solves the problems of long process cycles, high porosity, high cost, and insufficient introduction of high-entropy ceramics in existing processes, achieving rapid densification and improving the material's high-temperature stability, oxidation resistance, and ablation resistance. It is suitable for the large-scale production of thermal protection materials for hypersonic vehicles.

The utility model discloses multi-specification paint bucket filling equipment belongs to paint bucket filling equipment field, including bottom frame, and bottom frame bottom is equipped with support, and the rotatable installation of a plurality of straight line array distribution's conveying roller is equipped in bottom frame, and the top of bottom frame is equipped with top plate, and the both sides between top plate bottom and bottom frame are all fixedly connected with stand, and the both sides of bottom frame are all fixedly installed with the first mounting plate of showing " L " shape, and the clamping assembly is equipped between two first mounting plates, the top of top plate is equipped with the mounting hole, and the fixed mounting of tank body is equipped in mounting hole, and the fixed mounting of mounting box is equipped in the top of tank body, and the lateral wall of tank body upper segment is equipped with inlet pipe, and the support plate is equipped between four stands. The utility model discloses the lateral wall of filling pipe passes through the setting of apron, and the filling pipe is driven lifting through telescopic component, makes filling pipe place in paint bucket and makes apron and paint bucket top contact, plays the role of plugging paint bucket port, helps to avoid the phenomenon of paint splashing, is favorable to the filling effect of paint.

The application discloses a kind of buried copper block circuit board and its manufacturing method, the manufacturing method includes: the two outer layers of core plate are copper foil layer, and window position A is provided on the non-line area of one outer layer;Core plate is double-sided inner layer pattern production, to make inner layer circuit pattern and pad on the two outer layers of core plate respectively, and make a plurality of flow blockings on one outer layer of core plate, which are surrounded outside window position A;The insulating layer is covered on the two outer layers of core plate, and window position B is provided on the insulating layer adjacent to flow blocking, which is opposite to window position A;Based on window position, insulating layer and core plate are windowed;After the copper block gap with rough surface is placed in window, it is compressed and handled, and in the process of compression, the flow of colloid in window is controlled by flow blocking, so that copper block is firmly combined with insulating layer and core plate together.The manufacturing method is simple and reasonable, easy to implement, the reliability and stability of the obtained circuit board product are high, and the market demand is met.

The utility model discloses a gabbion high quality construction device belongs to water conservancy, pumped storage, municipal engineering technical field. The method promotes construction quality through the cooperation of shaped steel cover box, anti -deformation board and U type buckle. The shaped steel cover box is the open rectangular steel frame of top and bottom, is equipped with vertical reinforcing bars and horizontal reinforcing bars in four sides, is equipped with T type groove, trapezoidal groove and lifting lug on the surface, the anti -deformation board is inserted into the T type groove of shaped steel cover box through back T type rail, and gabbion is supported to prevent packing deformation, and U type buckle is installed on the upper portion of shaped steel cover box, and gabbion is fixed simultaneously. Its construction process is: site grading, shaped steel cover box hoisting positioning, gabbion is put into and is fixed with lead wire on the hook rod, screening and washing stone, mechanical packing, cover gabbion, remove shaped steel cover box. The method realizes gabbion fast positioning, deformation control and mechanization operation, and solves the problem of low traditional construction efficiency and poor quality.

The utility model relates to a kind of recycled concrete aggregate chemical slurry vacuum impregnation device, belong to concrete processing technical field.Mainly including rack, impregnation tank, stirring assembly, vacuum pump, filter screen cylinder, liquid supply pump, drain pipe and annular bulkhead;Through the cooperation design of filter screen cylinder and annular flow guide cavity, make chemical slurry pass through the aperture of filter screen cylinder and enter inside and contact with recycled aggregate uniformly, combined with the synergistic effect of stirring assembly and vacuum pump, realized the depth penetration of chemical slurry under vacuum negative pressure, significantly improved the filling effect of slurry to aggregate surface pore, effectively solved the problem of concrete strength decline caused by insufficient slurry penetration of traditional device, simultaneously, through the accurate temperature control function of heating cavity and temperature sensor, further increase the fluidity of slurry, thereby improve the impregnation quality and efficiency.