242results about How to "Strong fire resistance" patented technology

The present invention is wear-resistant wood-plastic floor board and its production process, and belongs to the field of decoration material technology. Polyvinyl chloride resin or plastic material is added with waste wood powder or fiber material powder, active calcium carbonate, assistant, stuffer, etc, and the mixture is pelletized, and further treated through extruding, molding, vacuum cooling, settling, drawing and cutting to form the basic wood-plastic board. The basic wood-plastic board is polished, groove milled and covered with surface decoration layer to form the wear resistant wood-plastic floor board product. The wear resistant wood-plastic floor board is beautiful, wear resistant, fireproof, waterproof, non-skid, anticorrosive and environment friendly and has high strength, heat insulation, electrical insulation and other advantages.

The invention discloses a fire-resistant silicon rubber, which is prepared by the following raw materials by weight: 100 parts of silicon rubber, 0.1 to 3 parts of hydrogen-containing silicone oil, 2 to 15 parts of hydroxy silicone oil, 10 to 30 parts of pyrogenic silica, 10 to 30 parts of silicon epitaxy material, 20 to 50 parts of nanomontmorillonite, 10 to 30 parts of silicon carbide, 1 part of vulcanizing agent and less than 50 ppm of platinum compound calculating at the platinum quantity compared with the silicon rubber. The invention also provides a preparation method of the silicon rubber and a fire-resistant cable prepared with the silicon rubber. The fire-resistant silicon rubber has the performances such as stable fire resistance and good insulation performance, and has simple preparation method. The cable which is prepared with the fire-resistant silicon rubber has simple structure and convenient process. Particularly the reliability of the fire-resistant cable can be greatly improved.

The present invention relates to an abrasion-resistant plastic floor board and its production process. Said process includes the following steps: using waste and old plastic powder as main raw material, adding active calcium carbonate and plastic filling agent as auxiliary raw material, mixing them and extruding them to obtain plastic foamed granules, die-pressing and forming, cooling, setting, drawing and cutting so as to obtain the invented plastic base plate, then sticking plastic protection film on its surface, so that the invented plastic floor board finished product can be made up.

The invention relates to an expansion type environment-friendly halogen-free high-flame retardant and fire-resistant cable and a method thereof. The cable is characterized in that: each core sequentially consists of conductors, a silicon rubber insulating layer, a filler, a flame retardant oxygen separation layer, an aluminum-plastic composite tape insulation layer and an expansion type fire-resistant outer protective layer made of low-smoke halogen-free flame retardant polyolefin from inside to outside, and adopts a fire-resistant cable structure formed by combining the expansion type fire-resistant outer protective layer made of the low-smoke halogen-free flame retardant polyolefin, the aluminum-plastic composite tape insulation layer and the silicon rubber insulating layer; and a flame retardant oxygen separation layer structure is formed by a halogen-free high-flame retardant material coated with metal hydrates. The preparation method comprises the following steps of: drawing single lines, performing annealing, twisting the conductors, insulating silicon rubber, cabling, and preparing the flame retardant oxygen separation layer, the aluminum-plastic composite tape insulation layer and the expansion type refractory outer protective layer made of the low-smoke halogen-free flame retardant polyolefin. The cable provided by the invention is easy to process, the external diameter of the cable is smaller than that of the traditional cable by 2 to 4 millimeters, and the structure can be obviously lightened.

The invention discloses a water-based coating which is characterized by comprising the following components by weight parts: 20-30 parts of water, 20-25 parts of an acrylic emulsion, 0.3-0.5 part of a wetting agent, 0.1-0.3 part of a de-foaming agent, 15-20 parts of titanium dioxide, 10-15 parts of talcum powder, 0.3-0.5 part of a fireproof agent and 0.2-0.4 part of an antibacterial agent. The coating disclosed by the invention is reasonable in composition, low in cost, good in compatibility among the components, environment-friendly, mildew-proof and flame-retardant, and has excellent application values; a natural antibacterial agent and an inorganic antibacterial agent are mixed for use, so that the problems of poor stability due to single use of the natural antibacterial agent or pollution caused by single use of an organic antibacterial agent and high cost due to single use of the inorganic antibacterial agent are solved; due to combined use, the mildew-proof effect is more lasting; the film-forming drying time is short, the hardness is good, and the extensibility and the heat resistance are good.

The invention discloses a magnesium oxide board which is prepared by extruding a reinforced material and slurry into a sheet through forming equipment, wherein the reinforced material is composed of a non-woven fabric and a fiberglass mesh or other reinforced materials; the slurry comprises the following components in parts by mass: 100 parts of magnesium oxide with the magnesium content of at least 85% and the activity degree of at least 62%, 80-90 parts of anhydrous magnesium chloride water solution with the concentration of 10-40 baume degrees, 10-15 parts of lightweight filler A, 15-20 parts of lightweight filler B, 1-5 parts of silicon dioxide and 1-10 parts of foaming agent; the particle size of magnesium oxide is 250-400 meshes; preferably, the lightweight filler A is one or more selected from perlite, polyphenyl granules, gangue and vermiculite, and the lightweight filler B is one or more selected from wood flour, straw, rice husk and bamboo fiber; more preferably, the lightweight filler A is hole-closed perlite, and the lightweight filler B is straw sawdust of 80-100 meshes. The invention also discloses a preparation method of the magnesium oxide board. The magnesium oxide board prepared according to the invention is high in strength, not easy to get damp, strong in fire resistance and free of cracks after being fired at high temperature; in addition, the preparation method of the magnesium oxide board disclosed by the invention is short in time.

The invention discloses a fabricated frame strip steel bracket long column and a construction method of the fabricated frame strip steel bracket long column. The column body is a composite column consisting of three parts, namely steel pipe outer reinforced concrete, a steel pipe and steel pipe inner concrete; the steel pipe and the steel pipe inner concrete penetrate through the whole long column; the steel pipe inner concrete is subjected to primary prefabrication to form a steel pipe concrete column; concrete at a steel pipe outer joint or total concrete is poured in advance at the second time; a steel bracket is welded with the steel pipe. The long column has the advantages that 1, a multi-layer frame column is manufactured into a long column, the manufacture is simple, and the installation is convenient; 2, the column body is a composite column, the compression bearing capacity and shear capacity of the column are 2-4 times that of a reinforced concrete column with the same section, and the bearing capacity and anti-seismic property of the frame column are obviously improved; 3, the steel bracket is arranged and can be connected with a steel beam or a cast-in-place reinforcedconcrete beam, and the connection is convenient and reliable; and 4, high-strength concrete in the steel pipe is prefabricated in a factory, and the construction cost of the column is greatly reducedcompared with that of a conventional composite column. Therefore, the long column is suitable for various multi-story and high-rise prefabricated buildings and is wide in market prospects.

The invention discloses a refractory flame-retardant silicone rubber sheath material for cables and a preparation method thereof. The refractory flame-retardant silicone rubber sheath material for cables is prepared from the following raw materials in parts by weight: 70-90 parts of methylvinyl silicone rubber, 15-25 parts of epichlorohydrin rubber, 10-20 parts of bisphenol A polycarbonate, 2-3 parts of zinc oxide, 3-4 parts of 2-thiolbenzimidazole, 4-6 parts of microcrystalline wax, 1-2 parts of stearic acid, 3-5 parts of dimethyl silicone oil, 10-15 parts of nano silicon nitride, 20-30 parts of gas-phase silica white, 8-12 parts of calcined argil, 3-6 parts of fiberglass, 5-10 parts of alundum powder, 5-10 parts of epoxy soybean oil, 0.3-0.6 part of dicumyl peroxide, 1-2 parts of triallyl cyanurate and the like. The sheath material has the characteristics of stable fire resistance, favorable insulating property, high mechanical strength and the like, has excellent flame retardancy, oil resistance, freezing resistance, acid/alkali resistance, radiation aging resistance, wear resistance and other properties, and is completely reliable and durable.

The invention relates to a processing method of fire resistant mica tapes, which is characterized in that a diluted peptizing agent is uniformly immersed into the front and reverse faces of fiber cloth, then mica paper is flatly spread on the surface of a mucilage layer on the upper side of fiber cloth, thus forming a mica layer which is again put in an adhesive groove so as to cause the peptizing agent to uniformly immerse into the surface of the mica layer, then the fiber cloth is flatly spread on the surface of the mucilage layer formed on the upper side of the mica layer, thereby obtaining mica tapes without composite forming; and then cut and drum are carried out on the mica tapes after drying and then the preparation is completed. The structure of the mica tapes prepared by using the method is characterized by at least three fiber layers, at least two mica layers and at least one mica layer arranged between the two fiber layers. The preparation method can effectively increase the viscosity between the fiber layer and mica layer which are not separated, and the method not only improves the whole fireproofing and insulating property leading to more stable fireproofing property but also has the advantages of impact resistance, water durability and the like.

The invention discloses ablation-resistance resin for a resin film infusion process and a preparation method thereof, for solving such defects of the existing thermosetting resin substrate as poor processing property, high cost, poor heat resistance (low carbon yield) when used in ablating material in the resin film infusion process. According to the invention, thermoplastic polyurethane and boron phenolic resin take a synergic effect to improve the processing property and heat resistance and a preparation method of a resin film (sheet) having resistance to ablation heat and meeting requirements of the resin film infusion process is further obtained. A composite material made by using the film sheet has ablation resistance and oxidation resistance and also has the advantages of low cost, excellent heat resistance, and excellent processing property, can be widely applied to preparation of protective material, carbon material and anti-wear material having ablation heat resistance and can be used in the most advanced fields such as aerospace and electronics technology.

The invention relates to the field of ceramic composite sheet material production processes, and discloses a ceramic composite sheet material and a production process thereof. The ceramic composite sheet material includes an insulation layer and a decorative layer, the insulation layer and the decorative layer both include base materials, the insulation layer further includes a foaming agent, thedecorative layer further includes zirconium silicate, and the base materials are prepared from the components in parts by mass: 20-30 parts of kaoline, 10-15 parts of kieselguhr, 5-8 parts of talcum powder, 3-5 parts of clay, 5-8 parts of a lead-zinc tailing, 8-12 parts of a fluxing agent, 2-4 parts of the foaming agent and 1-3 parts of the zirconium silicate. The service life of the composite sheet material can be prolonged.

The invention provides a quickly-vitrified fire resisting cable material. The fire resisting cable material is prepared from the following raw materials in parts by weight: 40-50 parts of ethylene-vinyl acetate copolymer, 30-40 parts of polyethylene, 20-35 parts of natural rubber, 30-40 parts of butadiene styrene rubber, 4-6 parts of a compatilizer, 1-2 parts of zinc oxide, 20-30 parts of argil, 10-15 parts of kaolin, 5-6 parts of medical stone, 6-7 parts of garnet, 1-2 parts of 3-aminopropyl trimethoxy silane, 3-4 parts of rapeseed oil, 1-2 parts of pentaerythritol, 1-2 parts of melamine cyanurate, 1-2 parts of molybdenum trioxide, 4-6 parts of ammonium molybdate, 1-2 parts of copper oxide, 1-2 parts of polytetrafluoroethylene micropowder, 10-12 parts of DIBP (diisobutyl phthalate), 6-8 parts of tributyl acetocitrate, 2-4 parts of epoxyoctyl stearate, 1-2 parts of a crosslinking agent TAIC (triallyl isocyanurate), 1-2 parts of ferrocene, and 12-15 parts of a modified filler. The fire resisting cable material is high in fire resistance. At high temperature, the fire resisting cable material can be quickly vitrified to protect the normal use of a cable. Meanhwile, the fire resisting cable material is environment-friendly and high in weather resistance.

The invention relates to a production technology of a fire-resistant power cable. The production technology comprises the steps of copper wire drawing, copper wire softening, wrapping of a mica tape on the surface of the softened copper wire to form a fire-resistant layer, extrusion of an upper teflon insulating layer out of the copper wire wrapped with the fire-resistant layer through a fluorine plastic extruder for preparation of core wires, cooling of the core wires, pair twisting of the core wires for formation of a cable, extruding formation of the cabled core wires and flame-retardant low-smoke flame-retardant polyolefin insulation sheath material through a single-screw extruder and power cable coiling and storage. The preparation technology is simple and easy to control and realize, and the power cable prepared by the production technology has excellent electrical transmission performance and mechanical tensile performance, higher flame-retardant and fire-resistant capacity and long service life.

The invention discloses a ceramic silicone rubber fireproof bus duct. The bus duct comprises conductors arranged side by side, each conductor is wrapped in an insulating film coating and a ceramic silicone rubber coating successively, all the conductors are installed in an inner casing in a sealed manner, an outer casing is arranged outside the inner casing, and alumina silicate fibrofelt is filled between the inner casing and the outer casing. The bus duct can satisfy routine performance requirements for power transmission and distribution safety, insulation and heat insulation performance and fireproof performance are very high, structural design is ingenious and reasonable, it is ensured that the whole bus duct has sufficient insulation and machinery performance, the structure is compact, the size is small, the weight is low, the bus duct is suitable for onsite installation on different space occasions, manufacture and installation are very convenient, and the installation quality is ensured.

The invention relates to a fireproof anticorrosion cable tray and a processing technology thereof, and belongs to the technical field of distribution equipment. The fireproof anticorrosion cable traycomprises a box, a box cover, an extinguishing device and a heat radiation device, the upper and lower surfaces of the box cover are provided with first and second smoke sensors respectively, and theheat radiation device is arranged in the sidewall of the box; the fire extinguishing device comprises a carbon dioxide gas cylinder, an internal nozzle and external nozzles, the internal nozzle is arranged in the inner sidewall of the box, the external nozzles are arranged over the box cover, and a carbon dioxide gas cylinder is communicated with the internal and external nozzles via a pipeline; and the heat radiation device comprise a silica gel heat conducting sheet, a first heat conducting plate and a second heat conducting plate, and one side surface of the second heating conducting plateis provided with metal radiating fin. Due to cooperation among the first smoke sensor, the second smoke sensor and the extinguishing device, the fireproof anticorrosion cable tray can extinguish fireactively, and the fireproof anticorrosion cable tray is much safer.

The invention discloses fire-proof paint. The fire-proof paint consists of, linseed oil 100-120 parts, organic silicon resin 50-60 parts, dimethylbenzene 10-12 parts, asbestos 1-2 parts, magnesium hydrate 2-4 parts, water glass 6-10 parts and acrylic resin 2-4 parts. The fire-proof paint can overcome shortcomings of traditional paint, and ingredients of the paint can enable the paint to have a strong fireproof function.