7 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.

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 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.

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.