13 results about "Fiber posts" patented technology

The invention discloses a high-strength waterproof heat-preservation composite board which comprises an upper surface layer, a lower surface layer and a heat-preservation core material arranged between the upper surface layer and the lower surface layer, and further comprises a three-dimensional skeleton which is embedded in the heat-preservation core material, is used for providing a mechanical supporting frame for the whole composite heat-preservation board and can be actively repaired when being damaged. The three-dimensional framework is composed of a Z-direction fiber column, an integrated upper surface net layer and an integrated lower surface net layer, the upper surface net layer and the lower surface net layer are connected to the upper end and the lower end of the Z-direction fiber column, a cavity is formed in the Z-direction fiber column, and the cavity is filled with repairing fluid. A force transmission network is constructed through cooperation of three-dimensional framework gradient distribution and a dislocation anchoring system, the overall rigidity is ensured, meanwhile, the edge stress area is enhanced, interlayer stripping is avoided, and the bending resistance and impact resistance are improved. The surface microcapsules and the internal Z-direction fiber column repairing fluid form a dual self-healing mechanism, so that full-scale repairing from microcracks to through damage is realized, the durability of the material is improved, and the maintenance cost of the whole life cycle is reduced.

The application relates to an adjustable partition water distribution separation frame for a hollow fiber column type membrane module assembly, comprising a fixed frame and a movable frame radially movably installed on the fixed frame, the fixed frame comprising a tube body and a plurality of sets of outer partition pieces separating the peripheral area of the tube body into a plurality of partitions, and the movable frame comprising a plurality of sets of inner partition pieces corresponding to the plurality of sets of outer partition pieces, each set of inner partition pieces being arranged to be radially movably installed on the adjacent two sets of outer partition pieces of the fixed frame, so that each partition is converted between a minimum membrane filament loading state and a maximum membrane filament loading state. The application first partitions through the outer partition pieces, and then secondly partitions the first partition through the movement of the inner partition pieces on the fixed frame, so as to adjust the membrane filament loading area of the first partition, thereby matching the required membrane filament loading amount.

A method of installing a fiber post for a post and core dental restoration uses a fiber post system which has a plurality of fiber posts having at least two distinct diameters for the fiber posts and at least two preformed fiber post lengths for the fiber posts. Each fiber post containing a visible depth marker indicative of where the post should be placed above and below root orifice, whereby the fiber post selected is configured to be based upon the root length of the specific tooth obturated, yielding proper post space preparation apically for cementation and coronally for foundational core build up. The resulting implanted post eliminates or minimizes post manipulation during tooth preparation to create a mono-block of core material around the post during cementation and build up resulting in no disruption of either bond during preparation.

The application discloses a detachable digital guide plate for assisting fiber post and resin core repair and a manufacturing method. The detachable digital guide plate comprises a base guide plate and a post core guide plate assembled through a mortise and tenon joint structure. The guide plate is manufactured by using digital technology, fully considering the complexity and individual differences of the root canal morphology of natural teeth, and setting the post core position with the expected repair effect as the target, effectively assisting the accurate positioning and forming of the post core in the tooth defect repair, the fiber post bonding and the resin nucleation, especially suitable for the complex repair treatment of the multi-abutment row joint crown or fixed bridge. Not only can the guide plate assist the accurate positioning and bonding of the fiber post, but also can control the nucleation space position and shape of each post core, effectively assist the multi-abutment to obtain the common positioning channel, reduce the clinical operation difficulty, improve the operation accuracy and the quality of the oral repair treatment, and reduce the tooth preparation time of the clinician at the chair.

The utility model relates to the field of hollow fiber column type membrane modules, in particular to a shredding and pouring lifting device of a hollow fiber column type membrane module. The shredding and pouring lifting device of the hollow fiber column type membrane module comprises a rack, the rack comprises a plurality of stand columns and transverse supporting rods, membrane filament lifting columns are arranged on the stand columns in a sliding mode, each membrane filament lifting column comprises a vertical movable rod and a connecting rod, a U-shaped sliding rail is arranged on each vertical movable rod, and the transverse supporting rods are arranged on the vertical movable rods. A membrane shell lifting column is movably arranged in the U-shaped sliding rail, a first steel cable winch and a second steel cable winch are arranged on the stand column, a first steel cable is arranged between the first steel cable winch and the membrane shell lifting column, and a second steel cable is arranged between the second steel cable winch and the connecting rod.

The utility model discloses an epoxy asphalt concrete bridge deck pavement structure which comprises a bridge deck steel plate, a three-dimensional drainage transition layer, an epoxy asphalt bonding layer and an epoxy asphalt concrete layer which are sequentially arranged from bottom to top. By means of the three-dimensional drainage transition layer formed by the transverse corrugated steel plates and the vertical permeable fiber columns, efficient drainage is achieved, accumulated water on the bridge deck is effectively prevented from permeating, and by means of a mechanical anchoring system formed by the inverted-T-shaped anchoring parts and the perforated steel plate net, interlayer connection strength is enhanced, stability of a pavement structure is improved, and the pavement structure is more stable. By adding the nano silicon dioxide modified transition layer, the interface bonding force is further improved, so that the pavement system is firmer and more durable, strong bearing capacity, good durability and excellent driving performance of the bridge deck are ensured, and the problems that the traditional bridge deck pavement waterproof depends on the compactness of the material, but water is easy to permeate to cause delamination and influence the performance, the steel screen welding and fixing efficiency is low, and the service life is short are solved. The corrosion is accelerated; and the service life is shortened.

A method of installing a fiber post for a post and core dental restoration uses a fiber post system which has a plurality of fiber posts having at least two distinct diameters for the fiber posts and at least two preformed fiber post lengths for the fiber posts. Each fiber post containing a visible depth marker indicative of where the post should be placed above and below root orifice, whereby the fiber post selected is configured to be based upon the root length of the specific tooth obturated, yielding proper post space preparation apically for cementation and coronally for foundational core build up. The resulting implanted post eliminates or minimizes post manipulation during tooth preparation to create a mono-block of core material around the post during cementation and build up resulting in no disruption of either bond during preparation.

The invention relates to a bionic adhesive pad based on a bee foot pad adhesive force regulation mechanism, comprising: an adhesive pad skeleton (2) made of a hyperelastic material and having an arched belt-shaped structure; the bionic adhesive pad body (1) wraps the adhesive pad framework (2), and a mucus cavity (12) and a fiber structure (13) are arranged in the bionic adhesive pad body (1); the mucus cavity (12) is located in the middle layer of the bionic adhesive pad body (1) and used for storing and releasing mucus. The fiber structure (13) is arranged on the lower layer of the bionic adhesive pad body (1) and comprises fiber column structures distributed in an array mode. According to the invention, efficient regulation and control of the adhesive force are realized, and the adhesive has rapid and reversible adhesion-desorption capability, strong environmental adaptability and wide application range.

The present invention relates to an adjustable partitioned water distribution partition frame for a hollow fiber column membrane module, comprising a fixed frame and a movable frame. The fixed frame is provided with multiple partitions for loading membrane fibers. The movable frame is movably mounted on the fixed frame to separate each partition, thereby enabling each partition to switch between a minimum membrane fiber loading state and a maximum membrane fiber loading state. The present invention uses an outer partitioning member to perform a primary partitioning operation, and then uses an inner partitioning member to move on the fixed frame to perform a secondary partitioning operation on the primary partition, thereby adjusting the membrane fiber loading area of ​​each partition to match the required membrane fiber loading amount.

The present invention relates to an adjustable partitioned water distribution partition frame for a hollow fiber column membrane module, comprising an external fixed frame and an internal movable frame. The external fixed frame is provided with multiple partitions for loading membrane filaments, and the internal movable frame is configured to be rotatably mounted on the external fixed frame to separate each partition, thereby enabling each partition to switch between a minimum membrane filament loading state and a maximum membrane filament loading state. The present invention uses an external partitioning member to perform a primary partitioning operation, and then rotates the internal partitioning member on the external fixed frame to perform a secondary partitioning operation on the primary partition, thereby adjusting the membrane filament loading area of ​​the primary partition to match the required membrane filament loading state.

The invention discloses a hole array composite armor filled with wound fiber columns and a preparation method of the hole array composite armor. Circular blind holes, circular through holes, regular quadrangular blind holes, regular quadrangular through holes, conical through holes, stepped through holes, combined hole shapes and high-strength anti-elastic fiber columns filled in the corresponding hole shapes are designed. The invention further discloses a preparation method of the composite armor filled with the wound fiber columns and provided with the circular blind hole array, the conical through hole array and the stepped through hole array. Compared with a traditional hole array armor, the hole array armor plate has the advantages that the winding fiber column and the polyurea elastomer coating are added, the anti-elasticity performance of the center of the hole with poor anti-elasticity performance in the hole array armor plate can be enhanced, the overall anti-elasticity performance of the hole array armor plate is improved, the winding fiber column can be supported and restrained, and the anti-elasticity performance of the hole array armor plate is improved. The anti-bullet fiber column cannot lose efficacy due to insufficient friction force when being impacted by bullets, so that the anti-bullet fiber column is ensured to be better stressed in the length direction of the fiber; meanwhile, the polyurea elastomer can reduce the residual speed of the bullet.

This invention relates to the field of fiber needle punching technology, specifically disclosing a high-efficiency carding and needle punching device for basalt fibers, comprising a loosening and feeding mechanism, a pre-coiling mechanism, a carding and web-forming mechanism, a cross-laying mechanism, and a needle punching and consolidation mechanism arranged sequentially. This invention uses hookless needles, effectively eliminating bending stress sources. When the needle penetrates the fiber web at high speed, the micro-rough structure on the needle surface generates static friction with the fibers, dragging a portion of the fibers along the needle punching direction into the fiber web. When the needle withdraws, because the frictional resistance between the fiber and the surrounding fiber web is greater than the frictional force between the needle and the fiber, the fiber is retained inside, forming vertical fiber columns, achieving entanglement and solidification. Since the fibers are only subjected to tensile and shear stress throughout the process, they do not undergo rapid bending, thereby effectively reducing the fiber breakage rate.

The present application relates to a kind of hollow fiber column membrane module, including pressure-resistant membrane shell, a pair of adjustable partition water distribution partition, center tube and multiple groups of membrane filaments, multiple groups of membrane filaments are arranged around center tube and are filled in corresponding adjustable partition water distribution partition respectively at both ends, and form end seal by resin glue centrifugal casting on both ends of pressure-resistant membrane shell;Adjustable partition water distribution partition includes fixed frame and movable frame, multiple partitions for one-to-one corresponding filling multiple groups of membrane filaments are provided on fixed frame, movable frame is movably installed on fixed frame to separate each partition before centrifugal casting, so that each partition can be converted between minimum membrane filament filling amount state and maximum membrane filament filling amount state.The present application is first partitioned by outer partition piece, then the first partition is secondly partitioned by the movement of inner partition piece on fixed frame, so as to adjust the membrane filament filling area of each partition, so as to match the required membrane filament filling amount.