7results about How to "Filled tightly" patented technology

This invention relates to the field of polymer materials technology, specifically to a method for preparing and applying a rigid polyimide foam reinforced with aluminum honeycomb. The method for preparing the rigid polyimide foam reinforced with aluminum honeycomb provided by this invention includes steps such as surface pretreatment of the aluminum honeycomb core material and fixing the pretreated aluminum honeycomb core material into a molding die. The rigid polyimide foam material reinforced with aluminum honeycomb obtained by this invention not only possesses high specific strength and high specific stiffness, but also inherits the excellent properties of polyimide foam such as high temperature resistance, flame retardancy, low smoke, and thermal insulation. The introduction of the aluminum honeycomb skeleton also improves the material's impact resistance and dimensional stability, making it an ideal multifunctional integrated lightweight structural material with promising application prospects.

The utility model provides a kind of steel structure factory building stand column foundation connecting structure, including bearing platform, bearing column, anchor bolt being embedded in the top surface peripheral side of bearing column, shear slot being set in the top surface central position of bearing column, reinforcing steel ring being ringed and set on the inner wall of shear slot, H-shaped steel stand column, hollow square steel column being connected with the bottom plate of H-shaped steel stand column;Wherein, the bottom plate of H-shaped steel stand column is provided with the pouring hole being communicated with the inside of square steel column, the sidewall of square steel column is provided with several guide holes, H-shaped steel stand column is installed and fixed in the top of bearing column by its bottom plate and anchor bolt cooperation, and leveling gap is reserved between the bottom plate of H-shaped steel stand column and the top of bearing column, square steel column is inserted into reinforcing steel ring in shear slot, and micro-expansion fine stone concrete layer is poured in leveling gap and the aperture of shear slot.The utility model structure is simple, and construction is convenient, and the problem that existing steel structure factory building stand column and bearing platform junction is easily corroded and poor in shear capacity is preferably solved.

This invention relates to the field of tunnel secondary lining technology, and discloses a concrete construction testing device and its construction testing method. The concrete construction testing device includes a testing pipe, a cross-shaped overflow groove at the upper end of the testing pipe, a capping mechanism, a pressure-bearing venting mechanism, a pressure-bearing sealing mechanism, a ring pressure sensor, and a limiting nut. This invention uses the capping mechanism and the pressure-bearing venting mechanism to completely seal the cross-shaped overflow groove on the testing pipe. When grouting is injected into the arch, the pressure-bearing venting mechanism releases the gas until the concrete slurry enters the testing pipe. As the pressure applied by the concrete to the pressure-bearing venting mechanism gradually increases, the pressure-bearing venting mechanism squeezes the pressure-bearing sealing mechanism. The pressure-bearing sealing mechanism gradually expands under pressure, increasing the friction between itself and the inner wall of the testing pipe until it stops moving downwards. The concrete can then fully and densely fill the entire arch space.

The application relates to the technical field of pile foundation construction, in particular to a bored pile post-grouting construction process, which comprises the following steps: S1, a preparation stage: determining the type, proportion and preparation method of grouting material, preparing grouting equipment and performing necessary preparation work on a construction site; S2, grouting hole treatment: firstly, the reserved grouting hole needs to be cleaned and treated to ensure the permeability and sealing property of the hole; S3, grouting equipment setting: installing the grouting equipment; S4, grouting injection: prefabricated cement slurry or other grouting material is injected into the pile or the soil layer around the pile through the grouting pipeline until the filling reaches the position required by the design; S5, grouting slurry solidification: waiting for the grouting slurry to be fully solidified to form an integrated structure which is well combined with the pile body and the surrounding soil body. The application has the effect of improving the bearing capacity of the pile foundation.

The utility model discloses a kind of profiled thin-wall embedded anti-knock structure and reinforced concrete full prefabricated bathroom bottom basin structure, it is related to the field of fabricated building.The anti-knock structure includes profiled thin-wall body, its at least two adjacent side is equipped with the concave-convex structure containing groove and through-hole, groove is trapezoidal and / or dovetail shape, through-hole is arrayed and contains multiple hole type, groove bottom wall is also equipped with through-hole;Full prefabricated bathroom bottom basin structure includes the anti-knock structure and prefabricated floor, anti-knock annular is located at floor edge and integrally pours, and inside side element anti-knock is equipped on floor.The utility model is formed by concave-convex structure and cast-in-place concrete to form three-dimensional mechanical occlusion, strengthen connection strength and shear resistance, reduce leakage risk, improve construction efficiency, applicable to fabricated building.

The utility model relates to hot isostatic pressing equipment technical field, concretely is a kind of heating device for hot isostatic pressing equipment, it mainly includes heating furnace, the bottom end fixed mounting of heating furnace has base, the inside of heating furnace is connected with heating wire, and the top end of heating furnace is connected with top cover, vibration adjusting component includes heating pipe, and the bottom end of heating pipe is connected with protection box, the outside of protection box is connected with outer tube, and the bottom end of outer tube is equipped with vibration motor, the pressing replacement component includes connecting rod, the bottom end of connecting rod is connected with compacting plate, and the top end of connecting rod is connected with connector. The heating device for hot isostatic pressing equipment of the application is filled into heating pipe by raw material, then the vibration motor of bottom end vibrates, drives guiding rod and outer tube to shake, so that the material inside heating pipe is vibrated, and the material filling is more compact, and the compacting plate at top is compressed to adjust, improve product processing quality.

The utility model discloses a sleeve pile joint structure for an underground diaphragm wall. The sleeve pile joint structure comprises a secant pile, a first jet grouting pile and a second jet grouting pile, the secant piles are arranged between every two adjacent sections of underground diaphragm walls, one side of each secant pile is connected with the first section of underground diaphragm wall in a secant mode, and the other side of each secant pile is connected with the second section of underground diaphragm wall in a secant mode. The first jet grouting piles are arranged at the joints of the secant piles and the first underground diaphragm wall section, and the second jet grouting piles are arranged at the joints of the secant piles and the second underground diaphragm wall section. Wherein the first jet grouting piles and the second jet grouting piles are located on the soil facing sides of the two adjacent sections of underground diaphragm walls, and the first jet grouting piles and the second jet grouting piles are connected in an engaged mode; the joint is simple in structural design, high in construction efficiency, stable in performance, light in construction disturbance and small in occupied area, and the axial surface environment is powerfully protected.