35results about How to "Good anti-leakage" patented technology

The invention belongs to the building material technique field, in particular relates to a building thermal insulating mortar. The building thermal insulating mortar is characterized in that the mortar is composed of dry powder and water, the dry powder and water are present in a weight ratio of 1:1.3, when in use, the dry powder is added to the water and agitated evenly; and the dry powder is mixed by materials of modified cement, modified fly ashes, a re-dispersible latex powder, wood fibers, polypropylene fibers, calcium formate, hydroxypropyl methylcellulose, hydrophobic agent, multi-functional auxiliary agent and modified expanded perlite, materials of the dry powder include: 500 parts of modified cement, 160 parts of modified fly ashes, 25 parts of re-dispersible latex powder, 3 parts of wood fibers, 1 part of polypropylene fiber, 5 parts of calcium formate, 6 parts of hydroxypropyl methylcellulose, 1 part of hydrophobic agent, 3 parts of multi-functional auxiliary agent and 300 parts of modified expanded perlite by weight. The building thermal insulating mortar has advantages of strong heat preservation, firm bonding with wall bodies, compression resistance, superior tensile performance, good weathering resistance, environmental protection, and excellent waterproofing, anti-cracking and shedding prevention properties.

The invention relates to a suction liquid feeding electronic cigarette. The suction liquid feeding electronic cigarette comprises a shell, an oil storage bin, a heating body, a cigarette holder, a one-way valve, a heating body wire and a battery. The suction liquid feeding electronic cigarette is characterized in that a separating plate is arranged to divide the electronic cigarette into a positive air pressure area and a negative air pressure area. Two holes including an air hole and an oil hole are formed in the separating plate; one end of the air hole is close to the cigarette holder, and the other end of the air hole is connected with the atmosphere through a shell; and the end, close to the cigarette holder, of the oil hole is connected with the other end, close to a heating body, of the oil hole through the one-way valve and the oil storage bin. When smoking is carried out, tobacco liquid is injected into the heating body due to air differential pressure to generate smoke. The suction liquid feeding electronic cigarette has the beneficial effects that the good heat efficiency is obtained; the good tobacco liquid feeding control is achieved; the good seepage prevention is achieved; and the good cost performance is achieved.

The invention relates to a surface mounting type diode and particularly relates to a chip mounting type diode used for visible light/infrared light/ultraviolet light emission pipe products and photoelectric receiving pipe products. The chip mounting type diode comprises a plastic shell, a chip, a packaging colloid, metal leads and at least one metal lead frame, wherein a concave reflection grooveis formed in the plastic shell through injection molding, the chip is arranged at the bottom of the reflection groove, and the packaging colloid is arranged above the reflection groove and seals the reflection groove. The surface mounting type diode provided by the invention improves the light emission efficiency and the photovoltaic conversion efficiency, solves the problem of poor optical properties caused by adopting a planar structure for packaging in the prior art, and simultaneously can greatly reduce the energy consumption.

The invention discloses an ultrahigh-safety ceramic wire and cable design and method. The invention relates to the technical field of ceramic electric wires and cables. A ceramic cable main body and an easy-to-disassemble installation mechanism are included, the upper and lower sides of the outer wall of the ceramic cable main body are both provided with wear-resistant protection mechanisms, and the easy-to-disassemble installation mechanism is located in the middle of the outer wall of the ceramic cable main body. According to the ultrahigh-safety ceramic wire and cable design and method, anoxygen barrier layer, a steel wire rope, a ceramic layer and an insulating layer are arranged; the overall toughness of the ceramic wire cable can be effectively enhanced through the steel wire rope;the ceramic layer can effectively guarantee the fireproof and insulating functions, the insulating layer is prepared through low-smoke halogen-free irradiation crosslinking, the insulating layer can effectively separate an external object from the copper core, an electric leakage phenomenon can be effectively avoided, and stable utilization of the ceramic wire and cable can be effectively guaranteed.

The invention relates to the technical field of building materials, in particular to a prestressed concrete cylinder pipe preparation method. The method comprises the following operating steps including bell and spigot manufacturing; steel cylinder manufacturing; hydrostatic test performing; welding repair; pipe core forming; pipe core maintenance; surface mending; pipe core water curing; wire winding; guniting; appearance mending; and finished product stacking. According to the prestressed concrete cylinder pipe preparation method, the inner wall of a mould shell and the outer wall of a mouldinner core are coated with a concrete parting agent, the parting agent is high in hydrophobicity, oil film is thick, and the good double effects of good demoulding performance and expense saving areachieved; air can be isolated through an arranged outer epoxy resin coating layer and an inner epoxy resin coating layer, inside metal materials are protected, and meanwhile, the characteristics of compactness, water resistance, good leakage resistance and high strength are achieved; and through arranged reinforcing ribs, the concrete pipe surface bearing capability and impact strength are improved, and effective results are achieved by means of the lowest economic cost.

The invention discloses a chlorinated polyethylene waterproof coiled material and its preparation method. The material adopts chlorinated polyethylene as the base material, and thermoplastic polyolefin, a filling agent and other auxiliaries are also added. An extrusion calendaring molding method is employed to prepare the chlorinated polyethylene waterproof coiled material, which has multiple excellent comprehensive economic and technical performance indicators of excellent waterproofness, leakage resistance and weatherability, high tensile strength, high elongation, aging resistance, strong deformation adaptability, wide temperature adaptation range, high binding strength, long service life, easy construction and low cost, etc., thus being able to be used in bridge floor concrete of passenger dedicated lines, subways, roads, ports and wharfs, large underground projects, and other waterproof projects.

The present invention relates to a fibre impervious crack-resisting concrete, and its ingredients and admixing quantities are: 1. general Portland cement; (2). medium sand; (3) stone; (4) water-reducing agent; (5) slag powder, internal admixing quantity is 5%-50%, optimum admixing quantity is 20%-30%; (6) flyash, internal admixing quantity is 5%-50%, optimum admixing quantity is 40%-50%; (7) water-proofing agent, internal admixing quantity is 0.5%-5.0%, optimum admixing quantity is 2.5%; (8) expansion agent UEA, internal admixing quantity is 6%-12%, optimum admixing quantity is 8%-10%, one selected from water-proofing agent and expansion agent can be admixed; and (9) polypropylene fibre, external admixing quantity is 0.1-2.0 kg/cu.m, optimum admixing quantity is 1Kg/cu.m.

The invention discloses a carbon fiber reinforced resin powder material. The material comprises main raw materials and auxiliary materials; the main raw materials comprise, by mass, 50-60 parts of polyacrylonitrile carbon fibers, 40-50 parts of asphalt-based carbon fibers, 30-40 parts of IM8 carbon fibers, 10-15 parts of phenolic resin, 12-15 of epoxy resin and 13-15 parts of thermoplastic resin;and the auxiliary materials comprise, by mass, 5-8 parts of an antioxidant and 3-5 parts of a catalyst. The epoxy resin has strong adhesion, normal temperature operability, simple constructability andother good workability, and the thermoplastic resin has heat softening and cold hardening performances, so the main raw materials can improve the high temperature resistance and the corrosion resistance, and make the powder material have excellent thermodynamic performances; and the raw materials have low prices, so the powder material can be massively produced, thereby the practicality of the carbon fiber reinforced resin powder material is improved.

A special material used for cables with high shock resistance and prepared from recovered waste polyethylene and a preparing method thereof are disclosed. The special material includes 50-75 parts of a recovered cable material as a base, and 5-10 parts of chlorinated polyethylene, 5-10 parts of an ACR shock-resistant modifier, 5-10 parts of coloring carbon black, 10-30 parts of anhydrous calcium sulfate having a size of 400 meshes and 2-5 parts of an auxiliary agent are added. The special material is prepared through steps of extrusion, wire drawing, water cooling and granulation. The special material has a plurality of excellent comprehensive economic and technical performance indexes, such as excellent thermoplastic elastomer performance, waterproofness, seepage resistance, good weatherability, high tensile strength, high shock resistance, a high elongation percentage, a high friction coefficient, high deformation adaptability, a wide temperature adaptation range, using convenience, long service lifetime, easy construction and a low cost. Considerable economic benefit and social benefit can be generated. More importantly, waste is turned into things of value, energy is saved, and the special material and the method are low in carbon and environment friendly.

The invention provides environment-friendly and corrosion-prevention coating for buildings and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing silanol modified acrylate-styrene-acrylic emulsion; and secondly, adding polypropylene wax emulsion, pigments and fillers, a corrosion-prevention agent and an auxiliary agent to prepare the coating. The emulsion is the silanol modified acrylate-styrene-acrylic double-component emulsion; the silanol modified emulsion is a film forming substance, and the weather resistance, durability and elasticity of the coating are remarkably improved; the double-component emulsion is used as the film forming substance of a corrosion-prevention material, has the characteristics of good denseness, water resistance and anti-leakage performance, high strength and the like, and also has more excellent adhering property, oil resistance and anti-ageing performance; furthermore, the corrosion-prevention agent is also added into the system so that the corrosion-prevention performance of the coating is improved and the coating can resist mist fog for 3500 h and is not foamed and rusted; and moreover, the polypropylene wax emulsion with special anti-pollution factors is added so that the prepared coating has an obvious anti-pollution effect.

The invention relates to a passive automatic-control liquid flowmeter. A limiting rotary shaft of a quantification mechanism is fixed on a rotary gear and connected with a quantification spring. A rotary shaft gear is linked with a combination ratchet which is linked with and drives transition gears. A positioning wheel of a positioning control mechanism is fixed on a limiting rotary shaft. A positioning groove is formed in the positioning wheel. A positioning block is arranged on a closing board and matched with the positioning groove to control the closing board to open and close. A water inlet of a meter body is provided with an inner valve cavity with an opening in the longitudinal direction. The closing board and the opening of the inner valve cavity are closed. The closing board is fixed in the meter body and can rotate. A reset spring is arranged outside of a cavity hole of the inner valve cavity and connected with the closing board. The passive automatic-control liquid flowmeter has following beneficial effects: due to the fact that the inner valve cavity is arranged in the meter body and the closing board is transversely arranged in a cavity port of the inner valve cavity in the meter body, the closing board cannot be seen from a liquid inlet of the flowmeter; the closing board cannot be prided laterally from the liquid inlet; a sealing effect is improved; and water is prevented from being stolen and leaked.

The invention discloses permeating and curing inorganic mineral color dry powder paint for a highway bridge. The permeating and curing inorganic mineral color dry powder paint is prepared from, by weight, 20-40 parts of Portland cement, 15-25 parts of vinyl acetate copolymer, 15-25 parts of styrol copolymer, 8-12 parts of organosilicon compound, 10-20 parts of inorganic filler, 2-6 parts of coupling agent, 1-3 parts of curing agent, 2-6 parts of fortifier, 1-3 parts of inorganic adhesive, 1-3 parts of antibacterial agent, 4-8 parts of mineral colored stone and 3-5 parts of pigment. The permeating and curing inorganic mineral color dry powder paint for the highway bridge has good anti-leakage, antibacterial and anti-mold effects, is good in weather resistance, acid and alkali resistance and flame retardant effect, free of toxicity and smell, and releases no harmful substances; the preparing method is simple and low in preparing cost, and the color dry powder paint can effectively avoid alkali efflorescence and desquamation problems, prolongs the service life of the highway bridge when used in the highway bridge and is worthy of popularization.