10 results about "Fiberboard" patented technology

Disclosed herein is a back-grooved laminate wood flooring in which a wood veneer of high pressure resin impregnation laminate (WPL) is laminated on a base selected from a vinyl chloride (PVC) resin layer, on oriented strand board (OSB), a high-density fiberboard (HDF) and a waterproof plywood. More specifically, the back-grooved laminate wood flooring comprises a WPL (20), an adhesive layer (40) and a base (10) (a polyvinyl chloride resin layer, OSB, HDF or waterproof plywood) wherein the WPL (20) includes a base-reinforcing layer (24), a natural veneer layer (23), a resin-impregnated overlay layer (22) and a surface UV coating layer (21) layered in this order from the bottom. The back-grooved laminate wood flooring further exhibits excellent soundproofing performance.

The invention relates to a magnesium calcium fire-proof plant fibre board and the preparation method thereof, and consists of 1 to 2.4 parts of abio-glue gelled material, 1.5 to 2.5 parts of plant fibres, 0.025 to 0.03 parts of cymene sodium silicate and 1.4 to 1.8 parts of stirring liquor. The invention adopting the method of heat pressing the half dry feed comprises the steps of preparation of material, stirring of the mixture feed, paving and pre-pressing, heat pressing and moulding and incising with fixed size. The products not contain formaldehyde and has the advantages of environmental protection, no poison, harm and crack, light weight and heat preservation, shrinking and small swelling modulus. The invention has good fire-proofing, water-proofing, antisepsis, moth-proofing, and weathering resistance, thereby thoroughly eliminating abuse reversing salting of the magnesium products. Moreover, the invention has the characteristic of the abio-material and combines the characteristics of wood including fine texture, strong natural tactile sensation, easily planning, cutting, fixing and sticking. The invention which has simple production technique and fast shaping speed needs not to be preserved and aired and has high intensity of breaking resisting and even density and not distort. The invention is applicable to the industries such as constructional material, package, transportation, decorating, etc.

The invention discloses a construction method for a concrete shear wall and belongs to the field of construction. The construction method is characterized in that an outer template of an outer wall of the shear wall is a disassembly-free template, one side surface of the disassembly-free template is connected with the concrete wall in a concretion mode, and the other side surface of the disassembly-free template is an outer wall surface of a building; the disassembly-free template is a heat insulation composite board; cement fiber plates or calcium silicate boards on both sides and a middle interlayer are bonded to form the heat insulation composite board, and the middle interlayer is made of heat insulation materials. The construction method for the concrete shear wall has the advantages that the construction cost is low, the construction duration is short, and constructions for the wall structure, the heat insulation structure and outer wall outer decorations are achieved at a time.

A fibreboard comprising dried plant fibres added with binder resins obtained from a reaction between a diisocyanate and a polyol derived from natural oils or fatty acids, and formed by pressing at a temperature range of 50° C. to 150° C.

The invention relates to an environment-friendly sealing plate, in particular to a completely-asbestos-free environment-friendly sealing plate and a method for preparation thereof, which mainly solve the technical problems that asbestos-free fiberboards in the prior art are mainly made of sepiolite, low in performance, especially leakage rate and strength index, difficult to meet the utilization requirements, and the like. The sealing plate comprises, by weight, 10%-20% of fluororubber, 25%-40% of artificial asbestos-free mineral fibers, 4%-13% of reinforced fibers, 35%-50% of filler and 0.5%-20% of vulcanization aids. The method includes subjecting the fluororubber, the artificial asbestos-free mineral fibers, the reinforced fibers, the filler and the vulcanization aids to mixing, roller forming, calendaring, edge cutting, vulcanizing, printing and packaging sequentially to obtain the finished environment-friendly sealing plate.

The invention discloses a resin coating and curing device for production of a glass fiber board. The resin coating and curing device comprises a glass fiber cloth roll material conveying roller, a coating box and a curing furnace, wherein the glass fiber cloth roll material conveying roller is arranged at an input end; a guide roller is arranged on the left side of the roll material conveying roller; the coating box is arranged on the left side of the guide roller; a feeding hole is formed in the top of the coating box; a coating roller is arranged in the coating box; a regulating roller is arranged on the left side of the coating box; a receiving box is arranged at the lower end of the regulating roller; the bottom of the receiving box is communicated with the sidewall of the coating box by a pipeline; the curing furnace is arranged on the left side of the regulating roller; a plurality of supporting rollers are arranged in the curing furnace and are connected with a conveying belt in a driving manner; the conveying belt is driven by conveying rollers arranged at the two ends of the curing furnace; the upper end of the curing furnace is connected with a heating air blowing device; the side end of the curing furnace is connected with an air absorbing purifying device. The resin coating and curing device disclosed by the invention is reasonable in structural design and can be used for conveniently and rapidly controlling the thickness of the glass fiber board and also ensuring that the content of volatile matter in the curing furnace is not too high.

The invention provides a resistance-double resonance composite sound absorbing profile. The resistance-double resonance composite sound absorbing profile comprises a resistance sound absorbing material, an aluminum fiberboard, a micro-perforated panel and a plate surface support frame which are independent from one another. According to the technical scheme provided by the invention, different noise frequency bands are inhibited for different noise source frequency spectrum features by adjusting material parameters and the process parameters of a cavity structure; and a low-frequency sound absorbing coefficient to 125 Hz can reach 0.54. An average sound absorption coefficient to a frequency band of 125 Hz-500 Hz can reach 0.77, and the minimum sound absorption coefficient to a frequency band of 250 Hz and 1,600 Hz can reach 0.36.

An adhesive used for moisture-proof fiberboards is disclosed. The adhesive comprises following raw materials by weight: formaldehyde, urea, resorcinol, oxidized starch, flour, polyvinyl acetate, an acid solution and an alkali solution. Beneficial effects of the adhesive are that comprehensive modification is performed through adding a small amount of the oxidized starch, the polyvinyl acetate and the resorcinol, curing time of the adhesive in fiberboard hot pressing is shortened, adhesive strength is increased, obvious characteristics including enhanced waterproofness, high mechanical strength, good dimension stability, and the like of the fiberboards are achieved, and problems that fiberboards under high-moisture environments are liable to expand and deform and strength is poor, and the like are overcome.

The invention provides a method for manufacturing a light-weight fiberboard. The method for manufacturing the light-weight fiberboard comprises the steps of debarking wood, chipping and screening to obtain wood chip; grinding the wood chip to respectively obtain coarse fibers and fine fibers; sequentially overlapping and laying fine fibers, coarse fibers and fine fibers to obtain a semi-finished fiberboard; sequentially performing prepressing, hot-press forming, cooling and conditioning to the semi-finished fiberboard to obtain the light-weight fiberboard. By using the method provided by the invention, the problem that the mechanical property of the fiberboard is caused to be decreased because the amount of used raw materials per unit volume is reduced in the prior art is solved and the obtained light-weight fiberboard is a three-layer light-weight fiberboard, wherein an upper surface layer and a lower surface layer are formed by the fine fibers and a core layer is formed by the coarse fibers. Therefore, under the situation that the total unit volume of the fiberboard is unchanged, by properly reducing the density of the core layer, the physical and mechanical properties of the fiberboards can be guaranteed and thereby a light-weight board which has a wider application range is produced.

The invention discloses a heating fiber box type resistance furnace with a rotating disc. A furnace door is hinged to the left side of the front face of a furnace body through a hinge, a stable mechanism is fixedly connected to the bottom of the furnace body, a cooling mechanism is fixedly connected to the bottom in the furnace body, and a heating mechanism is fixedly connected to the middle of the bottom in the furnace body. According to the heating fiber box type resistance furnace with the rotating disc, through the arranged heating mechanism, when a fiber plate is heated, the furnace dooris opened, the fiber plate is placed between a top rotating disc and a bottom rotating disc, at the moment, a heating pipe carries out heating, a motor is started to drive the top rotating disc, the placing plate and the bottom rotating disc to rotate, the fiber plate placed on the placing plate is evenly heated, and the problem that an existing heating device cannot effectively achieve comprehensive heating is effectively solved; and when the resistance furnace is not stable, through rotation of an adjusting column, under cooperation of a thread column and a thread hole, the thread column stretches out of and retracts into the thread hole of the adjusting column, and stable adjustment of the resistance furnace is achieved.