12 results about "Tooth layer" patented technology

The invention provides a preparation method of a multilayer zirconia false tooth and the multilayer zirconia false tooth, and the preparation method of the multilayer zirconia false tooth comprises the following steps: dividing a target false tooth into a plurality of tooth layers, and determining a powder formula of a reference layer in the plurality of tooth layers; by taking the powder formula of the reference layer as a reference, determining powder formulas corresponding to other tooth layers except the reference layer in the plurality of tooth layers; preparing powder of each tooth layer according to the powder formula of each tooth layer; and spreading the powder of each tooth layer into a mold according to a preset sequence, compacting, and processing to obtain the multilayer zirconia false tooth. According to the invention, the powder formula of the reference layer in the plurality of tooth layers is determined, and the powder formulas of other tooth layers are determined based on the powder formula of the reference layer, so that after the zirconia porcelain block is divided into multiple layers, the color of each tooth layer is not easy to deviate on the whole tooth.

According to the scheme, the low-temperature-resistant cable tie comprises a tooth layer and a back bottom layer with the thickness ratio being 1: 1-2, the tooth layer comprises tooth particles and a tooth base, and the tooth base is connected with the back bottom layer; the tooth layer comprises the following components in parts by mass: 70-80 parts of nylon and 20-30 parts of a toughening agent A; and the back bottom layer comprises the following components in parts by mass: 60-80 parts of nylon and 20-30 parts of a toughening agent B. According to the scheme, the ribbon of a double-layer structure is designed, the problem of fracture caused by tensile stress concentration of the back bottom layer during low-temperature use can be better solved, a stress buffering effect is achieved at the junction, and the prepared low-temperature-resistant ribbon can still be used at the temperature of 70 DEG C below zero.

A main body of the multi-layer transmission gear comprises a gear shaft, a gear hub, a power input tooth layer and a power output tooth layer. The gear shaft is provided with a front end shaft and a rear end shaft which are arranged at the circle center positions of the two end faces of the gear hub respectively. The gear shaft is provided with a large shaft body and a bearing mounting shaft body, and the diameter of the large shaft body is larger than that of the bearing mounting shaft body; the gear hub is a cylinder; the power input tooth layer and the power output tooth layer are arranged on the side face of the gear hub. Teeth of the power input tooth layer are similar to T-shaped teeth, and protrusions on the two sides of the tail ends of the teeth are similar to semi-cylinders.

The utility model belongs to the technical field of standard prepared teeth, and particularly relates to a standard prepared tooth model and a prepared tooth training device. The tooth comprises a tooth body, the tooth body is sequentially provided with an outer-layer tooth body and an inner-layer tooth body along the tooth preparation direction, the hardness and the thickness of the outer-layer tooth body are matched with those of enamel, and the hardness of the inner-layer tooth body is matched with that of dentin; meanwhile, a tooth preparation layer with a specified thickness is arranged from the surface of the outer-layer tooth body to the direction of the inner-layer tooth body, a middle floating layer with a specified thickness is arranged from the tooth preparation layer to the direction of the inner-layer tooth body, and a tooth body area in the middle floating layer forms a base layer; at least two of the tooth preparation layer, the middle floating layer and the base layer are made of fluorescent materials which can be developed under ultraviolet rays, and color differences exist among fluorescent colors of different layers. According to the utility model, the operation is convenient, and the purpose of quickly and recessively judging the tooth preparation result can be realized through a unified standard.

The invention provides a high-strength composite material sabot and a preparation method thereof, and belongs to the technical field of shelling and armor-piercing bullets. The sabot comprises a main stress structure, the main stress structure comprises a plurality of laying layer sets, each laying layer set is formed by a tooth part layer and a middle layer attached to the tooth part layer, and the multiple laying layer sets are connected in a laying layer mode in the stress direction of the sabot; and the middle layer and the tooth part layer are made of unidirectional carbon fiber materials. The middle layer is attached to the tooth part layer, so that the middle layer can effectively enhance the strength of the tooth part layer, and the pressure bearing capacity of the tooth part structure is improved. When the sabot is stressed, the stress can be uniformly dispersed by the middle layer, so that the tooth part layer is prevented from being damaged due to overlarge local stress; layering connection is carried out between the layering groups along the stress direction of the sabot, and the interlayer direction of the sabot is parallel to the stress direction, so that the product is effectively prevented from cracking along the interlayer, and the strength of the sabot is improved.

The utility model discloses an efficient emulsifying and homogenizing head which comprises a homogenizing device, materials are discharged from a homogenizing outlet after being ground by the homogenizing device, a material suction device is arranged at a material inlet of a homogenizing inlet, the material suction device can suck the materials into the homogenizing inlet at a high speed, and the materials have high flow speed under the action of the material suction device, so that the material processing efficiency is improved; the material suction device comprises a material suction shaft and a plurality of material suction paddles, the material suction device is simple in structure and can efficiently suck materials, the material circulation speed of the homogenizing device is increased, and the machining efficiency of the homogenizing head is improved; the outer rotating tooth layer is respectively tangent to the outer fixed tooth layer and the inner fixed tooth layer, the inner rotating tooth layer is tangent to the inner fixed tooth layer, and the double tooth layers are tangent, so that the grinding precision of the homogenizing head is improved, and the emulsification fineness is improved; the height of the outer fixed tooth layer is equal to that of the homogenizing rotor, and the side face of the homogenizing rotor is fully surrounded by the side face of the homogenizing stator, so that the grinding precision of the homogenizing head is improved, and the emulsification fineness is improved.

The present disclosure relates to the technical field of strapping machines, and one embodiment of the present disclosure provides a tension adjusting device of an intelligent controlled strapping machine, which comprises a connecting plate and a conveying wheel, the conveying wheel is rotationally connected to the connecting plate, a guide limiting assembly is arranged on the connecting plate, a limiting wheel is rotationally connected to the surface of the connecting plate, a tension adjusting assembly is arranged on the limiting wheel and the connecting plate, the tension adjusting assembly comprises a pair of driven tooth layers, the driven tooth layers are arranged around the outer surface of the limiting wheel, the surface of the limiting wheel is provided with a pair of driving tooth layers, the surface of the limiting wheel is provided with a clamping groove around, and the surface of the connecting plate is provided with a pair of sliding grooves. Through the above technical scheme, the technical problem that the existing ordinary strapping machine in the related art / prior art cannot meet these diversified needs due to the lack of tension adjusting function and can only be strapping at a fixed tension, which is easy to cause excessive wear of the strapping component, is solved.

The utility model relates to the technical field of building decoration structures, and discloses a decorative cover multi-angle adjusting and connecting system which comprises a stand column, a connecting rod and a connecting rod. The connecting piece is fixed with the upright post; the connecting piece is provided with an adjusting column, and a first tooth layer is arranged on the peripheral wall of the adjusting column; the plug connector is provided with an adjusting pipe; a second tooth layer is arranged on the inner peripheral wall of the adjusting pipe; the first tooth layer is clamped and matched with the second tooth layer, and the adjusting column is inserted into the adjusting pipe, so that the connecting piece is detachably connected with the inserting piece; the decorative cover is fixed with the plug connector; the adjusting column correspondingly adjusts the mounting angle of the adjusting pipe and the adjusting column based on the deviation angle of the decorative cover; the multi-angle adjusting connecting system for the decorative cover is suitable for installation of decorative covers with different deviation angles, the purpose of multi-angle installation of the decorative cover is achieved, the mold opening cost of a conventional connecting system with different angles is reduced, the cost is reduced, the construction period is shortened, and practicability is high.

A main body of the gear comprises a power input end, a gear hub and a power output tooth layer. The power input end of the power input device is arranged at the circle center position of the end face of the gear hub; the gear hub is a cylinder; the power output tooth layer is arranged on the side face of the gear hub. Teeth of the power output tooth layer are similar to a square shape, and tooth crests are semicircular structural members; the diameter of the circle of the semicircular structural member of the tooth top of the tooth of the power output tooth layer is equal to the width of the tooth; the arc of the semicircular structural part on the tooth top of the power input tooth layer tooth faces the arc of the semicircular structural part of the adjacent tooth.

A main body of the gear comprises a gear hub, a tooth layer and a gear shaft, the gear shaft is arranged at the circle center of the end face of the gear hub and is a cylinder. The tooth layer is arranged on the side face of the gear hub. Teeth of the tooth layer are similar to a square strip shape, and tooth crests are semicircular structural parts. The tooth layer is divided into a power output tooth layer and a power input tooth layer; teeth of the power input tooth layer are in a shape similar to a square strip, and tooth crests are semicircular structural parts. The diameter of the arc of the tooth semicircular structural part of the power input tooth layer is larger than the width of the tooth strip-shaped part. Teeth of the power output tooth layer are similar to a square strip shape, and tooth crests are semicircular structural parts; and the arc diameter of the semicircular structural part of the tooth crest of the tooth of the power output tooth layer is equal to the width of the tooth strip-shaped part.

This utility model relates to the field of textile machinery technology, specifically to a large ding toothed disc, including a toothed disc body and a tooth layer integrally formed on the outer wall of the toothed disc body. The lower surface of the toothed disc body is integrally formed with a lower positioning boss, and the toothed disc body is also provided with a number of fixing bolt holes.

A parameter recommendation module is used to propose a recommendation for dental restoration material parameters. The recommendation takes into consideration final tooth color influencing factors such as underlying tooth stump color and color of restoration fastening material such that at least one output restoration characteristic value needed to achieve a final user-specific tooth color for at least one tooth layer of the restoration is proposed.