50 results about "Mouth repair" patented technology

The invention discloses a novel dental prosthesis CAD / CAM / SLM-3D printing compound method. The method comprises the steps that a CAD / CAM / SLM-3D printing compound system which is composed of an optical scanning measuring instrument or a contact type scanning measuring instrument, computer-aided design software of a dental prosthesis, a miniaturized metal 3D printer and a numerical control milling machine is adopted to prepare a metal prosthesis, an existing dental CAD / CAM system is combined with a metal 3D printing technology, respective numerical control machining methods are organically combined, and the effect is extremely achieved. The automated production efficiency of the dental metal prosthesis, especially the complex dental metal prosthesis is greatly improved, traditional cumbersome processes for manually making a dental prosthesis are omitted, the making quality and stability of the prosthesis are improved, the purpose of rapid, accurate and personalized making is achieved, and the urgent needs of patients missing teeth are well met.

The invention discloses a neck-edge line extraction method based on a simple crown prosthesis mesh model of a false tooth. The neck-edge line extraction method comprises the following steps: scanning a tooth model, and generating a corresponding triangular mesh model and a corresponding point cloud model; analyzing the whole tooth model by adopting an analytical method based on curvature change rate coefficients, and determining the curvature of curvature calculation points and the curvature change rate coefficients through a local quadratic function fitting surface method; carrying out feature point screening on irregular-shaped triangles and regular triangles of the triangular mesh model respectively, and then generating feature lines according to the screened feature points; obtaining a tooth axle wire, automatically setting the initial points of neck-edge lines through the tooth axle wire, and then screening out a target neck-edge line from the feature lines by adopting an automatic iteration method in a mean direction; carrying out fitting and smoothening on the target neck-edge line so as to complete the extraction of the neck-edge line. The neck-edge line extraction method has the advantages of high extraction precision, reliability, high degree of intellectualization and low noise, and can be widely applied to the field of dental prosthesis.

The invention relates to a construction method for enabling a cable to pass through a barrier. The construction method for enabling the cable to pass through the barrier sequentially includes following steps: firstly, confirming a pipe hole path so as to obtain the total length and the specification of a cable sleeve, prefabricating the cable sleeve by sections, threading a steel wire lead rope through the cable sleeve in advance, clearing the inner wall of the cable sleeve section by section, and performing anticorrosion and mouth repairing on the cable sleeve after a qualified pressure test on the cable sleeve is completed; then, performing a simulation experiment, obtaining a slide friction coefficient of the cable sleeve, figuring out the maximum slide traction resistance, judging whether the maximum slide traction resistance is larger than permissive pull force of the cable, and if yes, installing idler wheel hoops for a second experiment so as to obtain a rolling friction coefficient of the cable sleeve, figuring out the maximum rolling traction resistance during the cable passing process, and confirming specifications of traction facilities of a main steel wire rope and the like; finally, drilling pipe holes, enabling the cable to pass through the cable sleeve, using a winching to tow the cable, using an excavator to assist in cable feeding, feeding the cable in the cable sleeve for a section after installing each batch of the idler wheel hoops until the whole cable completely passes through the cable sleeve, and performing a performance test on the cable which passes through the cable sleeve after two end mouths of the cable sleeve are blocked. The construction method for enabling the cable to pass through the barrier can substantially reduce passing resistance of the cable, and is safe and reliable.

The invention belongs to the technical field of the artificial tooth processing of the dental restoration industry, and particularly relates to a double-cooking device of full-automatic artificial tooth engraving and milling machine, which comprises an electric spindle, and an inner clamping sleeve and an outer clamping sleeve which are used for fixing the electric spindle, wherein a joint and a support are respectively arranged on the side wall of the inner clamping sleeve, the joint is respectively connected with an air blowpipe and a cooling water pipe, a dust suction pipe is installed on the support, an air pipe is arranged at the top end of the dust suction pipe, a filter screen is arranged below the electric spindle, a water tank is arranged at the bottom of the filter screen, and is connected with a water circulating pump, a water pipe is arranged on the water circulating pump, the rear end of the water pipe is connected with the cooling water pipe. The invention has the beneficial effects that: the double-cooking device has a simple structure, is convenient to use, and can select the appropriate cooling mode according to different processing materials, and the working quality and efficiency are improved.

The invention relates to a mouth repairing method for continuously molding three PE repaired mouth anticorrosion layers of a pipeline and an integrated mouth repairing machine. The mouth repairing method comprises the following steps that: the outer circumference of a steel tube section along a repaired mouth is subjected to heating of a steel tube, heating of a lap, coating of primer, winding and rolling of an anticorrosion belt, heating of the repaired mouth anticorrosion layer, the rolling of the repaired mouth anticorrosion layer and other working procedures and is provided with corresponding working procedure parts thereof, so that each working procedure part continuously operates to form the three PE repaired mouth anticorrosion layers according to the sequence of the working procedures when each working procedure part rotates along the outer circumference of the steel tube. The integrated mouth repairing machine has a cirque tubular structure which can be sleeved on a pipeline and can be opened and closed; a fixed ring rack of the machine is supported and fixed on the outer circumference of the repaired mouth pipe section; a rotary ring frame rack and the fixed ring rack are in circumferential guiding connection through a circumferential guiding mechanism; working procedure parts are arranged on the circumference of the rotary ring rack according to the sequence of the working procedures; and the rotary ring rack is driven by power to rotate along the pipeline to drive each working procedure part to perform continuous rotating operation along the outer circumferenceof the pipeline.

The invention belongs to a field of preparation and application technology of porcelain materials in mouth repairing field, in particular to a preparation method for a grads porcelain material with nickel chrome as a metal floor. A porcelain powder which takes leucite as a main crystalling phase is synthesized and the weight percentage for the components of the powder relates to 66.67 percent of SiO2, 16.57 percent of Al2O3, 12.81 percent of K2, 2.64 percent of Na2, and 0.89 percent of others. Grads adjusting components are added in the porcelain powder and the weight percentage of the components relates to 30 to 40 percent of Ni, 10 to 20 percent of Cr, 0 to 10 percent of NiO and 40 to 50 percent of Cr2O3. The porcelain powder added with the grads adjusting components is molded with a layer accumulation method and is agglomerated. The prepared component grads porcelain material is characterized by easing the heat stress between gold and porcelain and improving the intensity, and lays a foundation for the clinic application of mouth porcelain repairing.

The invention relates to a joint engineer pipeline patch antisepsis heat-shrinking sleeve that includes outside of the base material and heat shrinking belt sheet material made up of the inner layer of hot-melt adhesive covered on the outside of the base material. The feature is that the head and the end of the heat-shrinking sleeve are connected together to form a circle, and welding the connecting place to heat shrinking sleeve by ultrasonic welding machine. By using the invention, the manufacturing efficiency, mechanization degree, and cracking resistance would be improved.

The invention discloses a support device of a pipe repaired mouth heat shrinkage sleeve, and belongs to the field of oil and gas storage and transportation. The device comprises a control module, and a slide module slidingly connected with the control module; the control module and the slide module are absorbed on the outer wall of a pipe through fixed pieces; the slide module is positioned between the outer wall of the pipe and the heat shrinkage sleeve, and is used for supporting the heat shrinkage sleeve; and the control module is positioned out of an area covered by the heat shrinkage sleeve, and is used for controlling the slide module to slide in a direction near the control module until the slide module slides out of the heat shrinkage sleeve in the shrinkage process of the heat shrinkage sleeve. The support device of the pipe repaired mouth heat shrinkage sleeve improves the pipe mouth repair efficiency, solves the problems of low pipe mouth repair efficiency and weak mouth repair effect in related technologies, and is applied to pipe mouth repair.

The invention relates to a method for preparing nanometer composite resin mouth repair material. Wherein, it comprises that: prepare water-mellow system; hydrolyzing the silane coupler in acetic acid catalyst to be water-mellow system with coupler; modifying the surface of inorganic nanometer stuff; adding the nanometer inorganic powder into the water-mellow system to be dispersed by ultrasonic wave; washing and drying to obtain the modified inorganic nanometer stuff; preparing resin substrate; adding resin monomer into some dilute agent to be diluted, to form resin substrate; preparing nanometer composite resin; in shade, adding the resin substrate into light initializer and share initializer, to be mixed and added with modified inorganic nanometer stuff; mixing and removing the bubble, to obtain the final product. The invention has simple process and short time, while the product has high mechanical strength.

The invention discloses a mask of a head-imitating mold for oral teaching. The mask is characterized in that the mask is sleeved outside the head-imitating mold and is provided with a cavity; an occluder and a tooth model are contained in the cavity; the mask is provided with an open mouth; and the tooth model is exposed in the open mouth. The mask has the following beneficial effects: as the mask is sleeved outside the head-imitating mold and is made of materials similar to the human face skin texture, the head-imitating mold is more lifelike; the open mouth of the mask is enlarged, and the edges of the mouth are reinforced, so that the mouth is more durable; the upper edge of the mask ensures that the water for treatment can not overflow when the head-imitating mold imitates flat lying treatment; a human Frankfort plane corresponding to the upper edge of the mask and a human ala-tragus plane corresponding to the ala of the mask serve as reference planes for oral restorative treatment; the jaw of the mask is provided with a drain cavity and a drain hole for draining the water for treatment; and in conclusion, the mask of the head-imitating mold for oral teaching enables the head-imitating mold used for oral medicine teaching practice to be more lifelike and be convenient for practice operation.

The invention belongs to a field of preparation and application technology of porcelain materials in mouth repairing field, in particular to a preparation method for a grads porcelain material with nickel chrome as a metal floor. A porcelain powder which takes leucite as a main crystalline phase is synthesized and the weight percentage for the components of the powder relates to 66.67 percent of SiO2, 16.57 percent of Al2O3, 12.81 percent of K2O, 2.64 percent of Na2O, and 0.89 percent of others. Grads adjusting components are added in the porcelain powder and the weight percentage of the components relates to 30 to 40 percent of Ni, 10 to 20 percent of Cr, 0 to 10 percent of NiO and 40 to 50 percent of Cr2O3. The porcelain powder added with the grads adjusting components is molded with a layer accumulation method and is agglomerated. The prepared component grads porcelain material is characterized by easing the heat stress between gold and porcelain and improving the intensity, and lays a foundation for the clinic application of mouth porcelain repairing.

Disclosed is a CAD / CAM / SLM-3D combined printing method for dental restorations. A CAD / CAM / SLM-3D combined printing system, constituted by an optical scanning measurement instrument or a contact scanning measurement instrument, computer-aided design software for dental restorations, a miniaturized metal 3D printer, and a numerically controlled milling machine, is used to prepare a metal restoration, combining the existing dental CAD / CAM system with a metal 3D printing technique to combine the respective numerically controlled processing methods thereof so as to maximize the effects. The method can improve the automatic production efficiency of metal dental restorations, especially complex metal dental restorations, and eliminate the cumbersome procedures in the traditional manual manufacture for dental restorations. Thus the method improves the manufacturing quality and stability of restorations, achieving the purpose of rapid, accurate and personalized manufacturing, and better satisfying the urgent requirements of patients with tooth loss.

The invention relates to a rapid plugging method for a fiberglass pipeline with water and pressure. The method comprises the following steps of: manufacturing a rubber ring (4) for a damaged mouth (5) on the fiberglass pipeline (1); tightly adhering a semicircular fiberglass water sealing belt to the rubber ring (4) to form a mouth-repairing reinforced plate (6); respectively coating and clamping one tension tighten device (2) out of the fiberglass water sealing belt near two sides to seal an opening of the damaged mouth (5); artificially winding and pasting fiberglass alkali-free roving cloth and unsaturated polyester resin at a mouth-repairing area (7) at the right middle of the repaired mouth reinforced plate (6) of the fiberglass pipeline (1) until a mouth-repairing area is solidified and reaches a bearing capacity; respectively releasing the tension tighten devices (2) at both left and right ends at the damaged mouth (5); and respectively winding and pasting the fiberglass alkali-free roving cloth and the unsaturated polyester resin at the left and right end heads of the ready-made mouth-repairing area (7) in the middle until the new formed mouth-repairing area (7) which integrates the existing cure. On the premise of ensuring the normal operation of the damaged pipeline, the fiberglass pipeline is plugged rapidly and efficiently.

The invention discloses an air-jet loom profiled steel reed defect mouth repairing process which comprises the following steps of: (1) checking the two ends of a profiled steel reed airflow groove, and determining the defect mouth position of the profiled steel reed airflow groove; (2) adopting a grinding tool to grind the defect mouth position of the profiled steel reed airflow groove to and forth along the profiled steel reed length direction until the two edges of the defect mouth are in smooth transition; (3) rubbing a ground surface (which is caused by grinding) to and fro by using a honing stick so as to remove defective wools of the ground surface; (4) using an abrasive belt to penetrate through a gap between profiled steel reed sheets within a ground surface range, and utilizing the friction of the abrasive belt and the side walls of the profiled steel reed sheets to remove residual defective wools; and (5) polishing the ground surface of a profiled steel reed on an air sand blaster, and ensuring the ground surface to be smooth and fine. With the adoption of the repairing process, the profiled steel reed can be repaired, and the repaired profiled steel reed can satisfy the normal use of an air-jet loom.

A semi-noble metal casting alloy for prosthetic dentistry consists of Au 55.0-60.0wt%, silver 20.0-25.0wt%, Cu 10.0-14.0wt%, Pd 3-8.0wt%, Pt 0-3.0wt%, Zn 0-4.0, iridium 0-0.3. Its advantages include low cost, high mechanical and corrosion resistant performance.

A glass fibre reinforced composite resin adhesive bridge for repairing the back teeth deficiency in oral cavity features that a rectangular supporting frame is additionally arranged at the proper position in occlusal region and a rectangular hollow supporter is additionally arranged at the proper position in the connection region. Its advantages are high strength and high load-bearing power.