34results about How to "Improve the ability to resist external damage" patented technology

The invention relates an approach to produce artificial pumice. It is burned by nether materials: inorganic material, sodium hydroxide, borax, Paris white, carbon dust and isinglass. Thereinto, inorganic material is selected from minerals or clay. It follows nether steps: mixing above materials in terms of given ratio, cracking blending to 60-200 items and loading into a module to bake.

The invention discloses an electrified railway-used bar-shaped column type porcelain polymer composite insulator. The composite insulator comprises a porcelain core bar with more than one porcelain umbrella skirt. Two ends of the porcelain core bar are adhered with metal fittings via an adhering agent. The external surface of the porcelain core bar is covered with a polymer sheath with more than one polymer umbrella skirt. The surface of the porcelain core bar is processed via a coupling agent. The sheath and the umbrella skirt are solidified via high temperature and formed in one step on the porcelain core bar via an overall injection or pouring process. The umbrella skirt on the sheath comprises more than one large umbrella-shaped protrusion which is coaxially arranged with the porcelain core bar. The umbrella of the large umbrella-shaped protrusion is from 30mm to 60mm after the umbrella stretches out. The electrified railway-used bar-shaped column type porcelain polymer composite insulator which is pollution-flashover-resistant, bird-pecking-resistant and wind-and-sand-resistant is high in pollution flashover voltage so that crack and break in the process of using can be prevented. Meanwhile, the electrified railway-used bar-shaped column type porcelain polymer composite insulator has characteristics of being bird-trouble-resistant, wind-and-sand-resistant, external-force-damage-resistant and assistant in climbing and stepping.

The invention provides a connecting structure and a connecting method for an expansion joint water-stop belt of a hydraulic concrete member. The connecting structure comprises a protection layer and a sealing filling layer, wherein an expansion joint at the broken part of the water-stop belt is filled with the sealing filling layer; the protection layer coats the sealing filling layer and the outer side of the end of the broken part of the water-stop belt, and is combined with the end. A seam on the broken part is preferably enclosed by the sealing filling layer, so that the protection layer can be supported as required. The protection layer can be molded directly by coating a flexible film material on site in order to be tightly combined with the end of the water-stop belt. An activating agent and a bonding agent are preferably coated between the protection layer and the water-stop belt. The connection problem at the broken part of the expansion joint water-stop belt of the hydraulic concrete member can be solved. Compared with the process of replacing the water-stop belt by chiseling in the conventional way, the connecting method is simple and feasible; moreover, the water-stop belt has perfect performance after being connected.

The invention discloses an anti-aging and anti-wrinkle composition and a preparation method thereof as well as cosmetics and a preparation method thereof, and relates to the technical field of skin care products, the anti-aging and anti-wrinkle composition comprises the following components: 10-30 parts of supramolecular elastin, 3-15 parts of a distiller's grain extract, 3-15 parts of a bifidus yeast fermentation product lysate, 1-10 parts of a rehmannia extract, 1-10 parts of a kapok extract, 1-5 parts of glucan and 1-5 parts of schizophyllan. 1 to 5 parts of soy isoflavone and 0.1 to 3 parts of ergothioneine. The anti-aging and wrinkle-removing composition disclosed by the invention has an excellent anti-oxidation effect, and is capable of scavenging free radicals, delaying senescence, repairing damaged collagen and collagen fibers, tightening skin and removing wrinkles; the distiller's grain extract and the bifidus yeast fermentation product lysate are rich in moisturizing factors, and deep moistening is achieved. The supramolecular elastin is obtained through modification by a supramolecular technology, so that the solubility of the elastin can be increased, the surface skin barrier is disturbed, the permeation effect is greatly improved, and the absorption of the elastin is promoted.

The invention discloses a compression connected type double-umbrella-shaped or three-umbrella-shaped disk-shaped suspension-type composite string insulator unit which comprises a core rod, hardware fittings arranged at the two ends of the core rod, and a protective sleeve arranged on the outside of the core rod in a covering mode. A double-umbrella-shaped or three-umbrella-shaped umbrella skirt extending along the circumference direction of the protective sleeve is arranged on the protective sleeve. The hardware fittings are connected to the core rod in a compression mode. Sealing structures are formed on outer surfaces of the hardware fittings after high-temperature solidification. The compression connected type double-umbrella-shaped or three-umbrella-shaped type disk-shaped suspension-type composite string insulator unit has the advantages of preventing bird troubles, resisting to sand blown by wind, resisting to damage by external force and being capable of assisting climbing.

The invention relates to a micromolecular hyaluronic acid stock solution. The micromolecular hyaluronic acid stock solution comprises the following components in parts by weight: 8-10 parts of a skinconditioning agent, 3-5 parts of a skin repellent, 8-10 parts of a hydrating agent, 1.5-2.5 parts of an antioxidant, 0.05-0.15 part of a chelating agent and 70-80 parts of a solvent. The invention also discloses a preparation method of the micromolecular hyaluronic acid stock solution. The preparation method comprises the following steps of S1, cleaning equipment; S2, heating the solvent and the hydrating agent to 80-90 DEG C, and performing heat insulation; S3, performing vacuum homogenizing; S4, performing vacuum constant-temperature defoaming; S5, performing cooling to 45 DEG C, adding theskin conditioning agent, the skin repellent, the antioxidant and the chelating agent, and performing vacuum and uniform stirring; S6, performing cooling to 38 DEG C, performing half-part inspection, and discharging qualified products; and S7, performing filling to obtain finished products. The micromolecular hyaluronic acid stock solution disclosed by the invention has the advantages of being simple in technology, convenient to use, safe and reliable, and free from substances harmful to human bodies; and besides, natural extracts are massively used, so that using safety can be well guaranteed,damage to human bodies and skin can be reduced, and the micromolecular hyaluronic acid stock solution has the effects of regulating skin fat secretion, keeping moist and tenderizing and whitening skin.

The invention discloses a polymer disc-shaped insulation piece for a disc-shaped suspension type insulator string element and a manufacturing method of the polymer disc-shaped insulation piece, wherein the polymer disc-shaped insulation piece for the disc-shaped suspension type insulator string element comprises an umbrella skirt, a glue mounting portion with a hollow cavity which is in the shape of an inverted cone is arranged in the center of the umbrella skirt, and the polymer disc-shaped insulation piece for the disc-shaped suspension type insulator string element is made of hydrophobic cycloaliphatic epoxy resin. According to the polymer disc-shaped insulation piece for the disc-shaped suspension type insulator string element and the manufacturing method of the polymer disc-shaped insulation piece, the hydrophobic cycloaliphatic epoxy resin is utilized, and therefore the wind and sand resistant ability and the external force damage resistant ability of the polymer disc-shaped insulation piece are enhanced, and damage to the polymer disc-shaped insulation piece due to pecking of birds can be prevented. Meanwhile, engineering personnel can step on the umbrella skirt in a certain range in a construction process when necessary, and therefore construction is benefited, and the safety factor of the engineering personnel in the construction process is increased.

The invention discloses a cementing type composite insulator chain element with a double-umbrella-shaped and three-umbrella-shaped disk suspension type polymer. The element comprises a steel cap fitting, a steel leg fitting, an insulation core part, a polymer protecting sleeve and a polymer umbrella skirt. A cavity with the U-shaped section is formed in the steel cap fitting. The steel leg fitting is provided with a conical head portion matched with the cavity. The conical head portion of the steel leg fitting is arranged in the cavity of the steel cap fitting. The insulation core part is arranged between the conical head portion and the cavity. A cementing part is arranged in the center portion of the insulation core part and is an inverted-cone-shaped cavity. The outer surface of the insulation core part is covered with the polymer protecting sleeve. The outer surface of the polymer protecting sleeve is provided with the polymer umbrella skirt of a double-umbrella-shaped or three-umbrella-shaped structure. The conical head portion of the steel leg fitting and the cementing part are cemented into a whole through adhesive. The cavity of the steel cap fitting and the cementing part are cemented into a whole through the adhesive. The element can prevent bird damage, resist sand wind, prevent external force damage and assist in climbing and treading.

The present invention discloses an anti-creeping aluminum alloy power cable with high performance. The anti-creeping aluminum alloy power cable comprises a drawing single aluminum alloy conductor and stranded aluminum alloy conductors; each stranded aluminum alloy conductor is extruded with a shielding layer, a silane crosslinking insulating layer, a semiconduction shielding layer and a lapping copper strip shielding layer to form shielding conductor units; each shielding conductor unit forms a cable core unit through stranding, and the cable core unit includes filler and nonhygroscopic flame retardation materials; and the interlock armour is performed on the cable core unit, and the outermost layer is extruded with an oversheath. The anti-creeping aluminum alloy power cable with high performance is able to improve the anti-creeping performance of the aluminum alloy stranded conductor in an originally created aluminum alloy core arrangement mode, a stranded mode and a heat treatment mode.

The invention discloses a preparation method and application of toughened high-thermal-conductivity filler based on thermosetting resin, and belongs to the technical field of functional thermosetting resin filler preparation. The preparation method comprises the following steps: firstly, grafting and modifying a functionalized carbon material by using isocyanate, and then bonding with nitrile rubber to obtain the filler for improving the performance of the thermosetting resin. The filler prepared by the invention can effectively improve the toughness and heat conductivity of the material, so that the heat conductivity coefficient of the epoxy resin E-51 is improved to 0.3813 W/m.K, and the elastic modulus is improved to 1744.6 N/mm < 2 >.

The invention relates to a flame-retardant and cold-resistant power feeding and signal cable and a preparation method thereof. The flame-retardant and cold-resistant power feeding and signal cable includes a center conductor, a liner layer, two or more sets of three-core twisted pair conductors, two or more sets of two-core twisted pair metal shielding conductors, an isolation layer and an outer sheath layer, wherein the liner layer wraps the center conductor, the three-core twist pair conductors and the two-core twisted pair metal shielding conductors are located at the periphery of the linerlayer, the isolation layer wraps the three-core twisted pair conductors and the two-core twisted pair metal shielding conductors, and the outer sheath layer is located outside the isolation layer. The flame-retardant and cold-resistant power feeding and signal cable of the invention has the advantages of compact structure, stable performance, high torsion resistance, high tensile resistance, highflexibility, high stability, small dielectric loss, strong transmission signal capability, high anti-interference performance, high reliability in transmitting weak analog signals or digital signals,and can be widely used in systems or devices for the detection and control of power generation, metallurgy, petroleum, chemical, textile sectors and other sectors and can be used under harsh field conditions under temperature of -50 to 100 DEG C.