4results about How to "Smooth and rounded surface" patented technology

This invention relates to the field of overhead power transmission conductor technology, and in particular to a tenon-and-mortise interlocking ultra-high strength aluminum alloy steel core conductor and its preparation method. The conductor comprises an ultra-high strength steel core and an outer ultra-high strength aluminum alloy conductive layer. The ultra-high strength steel core is a G3A grade galvanized steel core, and the ultra-high strength aluminum alloy conductive layer is composed of 3-4 layers of S / Z type tenon-and-mortise interlocking wires concentrically stranded. The S / Z type tenon-and-mortise interlocking wires are a single-layer, single-wire concave-convex interlocking structure. This invention optimizes the Mg-Si-Zr-RE-B multi-element alloy composition system, achieving a Mg to Si mass ratio of 1.0-1.4, and combines this with a "solution-cold drawing-double-stage aging" process. This maintains high conductivity while increasing tensile strength to ≥360MPa, achieving an excellent match of high strength and high conductivity, and significantly improving strength while ensuring unchanged conductivity.

The utility model relates to the technical field of cable conductors, in particular to an energy-saving consumption-reducing monofilament mixed stranded cable conductor, which comprises a conductor, the conductor comprises a plurality of buckle type special-shaped monofilaments and a plurality of circular monofilaments, the cross section of each circular monofilament is circular, and the buckle type special-shaped monofilaments are interlocked and meshed. The utility model has the following advantages: (1) buckle type special-shaped monofilaments and round monofilaments with specific specifications are produced, the number of filaments is small, the number of times of wire drawing and die changing is small, the production efficiency can reach the round monofilament wire drawing capacity and production efficiency on the premise that two wire drawing machines are matched, the capacity is high, the requirement on equipment is low, and the requirement on the operating skill of workers is not high; and (2) low-oxygen copper and oxygen-free copper are adopted, only the inner-layer circular monofilament needs to be replaced when the resistor richness is too large or too small, the inner-layer circular monofilament is easy to repair, the later-period out-of-period problems are few, the after-sale cost is reduced, and copper material consumption can be saved to the maximum extent.

The invention belongs to the technical field of traditional Chinese medicine preparations, and discloses a collateral dredging pill which comprises collateral dredging extract fine powder, an enteric coating layer and a gastric-soluble film coating layer. The invention also discloses a preparation method of the pill, which comprises the following steps of: preparing the vein and collateral dredging extract into small pills or granules, coating the enteric coating, further preparing the pills, and coating the stomach-soluble film coating to obtain the pill. Compared with traditional collateral dredging granules and pills, the collateral dredging enteric-coated pill preparation can effectively improve the drying speed of the pill, is regular in appearance, good in fluidity and small in weight difference, can reduce the bad smell of the preparation under the condition that a flavoring agent is not used, improves the medication compliance of a patient, can be accurately positioned to disintegrate, release and absorb, and has a good application prospect. Meanwhile, the stability of the medicine is improved. As an upgraded and updated new product of traditional collateral dredging granules and pills, the traditional Chinese medicine composition has a wide market development prospect.

The utility model discloses a polyester silk anti-ultraviolet treatment device, which relates to the technical field of polyester silk, and comprises a base, the top of the base is fixedly connected with a support plate, the top of the support plate is fixedly connected with a treatment agent box, one side of the treatment agent box is provided with a through hole, and the inner wall of the through hole is connected with a rubber sleeve in an attached manner; the inner wall of the rubber sleeve is connected with polyester silk in an attached mode, and the inner wall of the treating agent box is fixedly connected with a limiting rod. By adopting the treating agent box, the limiting rod and the saline water box, a layer of protective film can be formed on the surface of the polyester yarn when the polyester yarn is put into the treating agent, so that the resistance of the polyester yarn to ultraviolet rays is improved, the limiting rod is arranged at the lower position in the treating agent box, and the polyester yarn penetrates through the bottom of the limiting rod; the polyester yarn can be better soaked in the treating agent, the problem that traditional polyester yarn cannot resist ultraviolet rays well is solved, the practicability of the device is greatly improved, and the service life of the polyester yarn is prolonged.