45results about How to "Good fire resistance and heat resistance" patented technology

A closed type cable or the like protection and guide device that reduces noise generation due to the generation of sliding contact sound during operation prevents entry of fine chips and wear powders of metal into the cable or the like protection and guide device. Scattering of contact wear powders, which are generated by sliding contact between components of the cable or the like protection and guide device, into the operation space can be prevented and a maintenance of the device is reduced. A cable or the like is included in a flexible support to be protected and guided from a fixed end side mounting member toward a movable end side mounting member and the entire outer surface of the flexible support except for an inlet and an outlet of the cable or the like is covered with a heat resistant tubular cloth cover.

The invention provides a fire-proofing shock-resisting loss-preventing undercut anchor and a connecting structure thereof. A metal anchor rod of the undercut anchor comprises a loss-preventing anchoring segment. The undercut anchor further comprises a fixing sleeve; by the affection of a tool, the fixing sleeve is pressed against a connecting part, an inner hole of the fixing sleeve is tightened and wrapped outside the loss-preventing anchoring segment, and a bumpy inner-hole surface matching with loss-preventing lines on the surface of the loss-preventing anchoring segment is formed simultaneously; permanent connection is formed and welding is emitted. The front end of the fixing sleeve is provided with a convex ring or a projection which is extruded into a clearance between the wall of a hole, for the metal anchor rod penetrating, of a building appendant between the metal anchor rod so as to form tight extrusion or interference fit. Permanent and firm connection and loss prevention of the undercut anchor can be realized and the welding is omitted, connecting strength is increased greatly, and labor force and cost can be saved. Drifting-preventing and positioning relationship between the anchoring sleeve and the building appendant is brought in, structure is simple, and using effect is good. The invention further provides a solution for fire proofing and heating resisting of the undercut anchor, and the undercut anchor is adaptable to various fire resisting areas.

The invention provides a lightweight microporous autoclaved aerated concrete floating body material, and relates to a novel environment-friendly fine chemical material. According to the invention, a calcium material and a silicon material are adopted as main raw materials; a gas-forming material, a regulating material, and an air-entraining agent are doped in; and through processes such as a hydration reaction, mold casting; pre-curing and blank-forming, cutting and shaping, autoclave curing, fetching, and processing, the autoclaved aerated concrete product is produced. The product has a dry density lower than 395kg/m<3>, a compressive strength higher than 2.1Mpa, an average pore size lower than 0.36mm, and a qualification rate higher than 96%. Through adding a small amount of the saponin concrete air-entraining agent, a water-to-material ratio during the production process, unit aluminum powder gas-forming amount, and casting stability can be substantially improved. Also, product volume, strength and quality can be substantially improved. The material provided by the invention has the advantages of innovative concept, rich raw materials, simple process, low cost, convenient implementation, and good popularization value. The product can be used as a novel environment-friendly energy-saving material in processing and construction of floating bodies, pontoons, artificial rafts, floating wave absorption embankments and cages, and heat-resistant fireproof layers.

The invention discloses a rod-shaped connected composite self-insulating building block and a production method thereof, which are characterized in that the building block is composed of an outer concrete slab and a middle foam concrete slab, wherein the outer concrete slab is prepared from cement, fine aggregates, fly ash, fiber-yarns and water by blending, the middle foam concrete slab is formed by cutting a large-sized plate prepared from cement, fly ash, light aggregates, a foamed foaming agent and water by blending, and the middle of the middle foam concrete slab is provided with a through hole. The production method of the building block comprises the following steps: preparing a large-sized foam concrete plate, cutting the large-sized plate according to a design size, and arranging a through hole on the large-sized plate; casting a bottom concrete slab in a building block mold; putting a foam concrete slab on a baseplate, filling concrete in the through hole, and casting a top concrete slab; and demoulding the building block, carrying out piled maintenance on the building block, and laying the building block. By using the method, foam concrete and the outer concrete slab are closely attached, so that the thermal insulation properties of the building block are improved; and the building block has the advantages of light weight, energy conservation and environmental friendliness.

The invention provides a B07 grade autoclaved sand aerated concrete block prepared by adding saponin air entraining agents. An autoclaved aerated concrete block product is prepared by using cement, lime and sand as main raw materials, doping a small quantity of gas generating agents, regulating agent and air entraining agents and carrying out hydration reaction, molding by pouring, billet forming by precuring, forming by cutting, autoclaved curing and processing out of a kettle. The autoclaved sand aerated concrete block is characterized in that the dry density, compressive strength, mean pore diameter and percent of pass of the product are respectively less than 698kg/m<3>, more than 7.59MPa, less than 0.45mm and more than 95% and are higher than the requirements, which are formulated in the national standards, of superior products of the B07 grade autoclaved aerated concrete block, so that the B07 grade autoclaved aerated concrete block is a single wall material capable of meeting more than 65% of energy saving requirements in cold regions in China. By adding a small quantity of saponin concrete air entraining agents, the ratio of water to materials, unit aluminium powder gas generation quantity and pouring stability in the production process as well as the volume, strength and quality of the product can be obviously increased. The B07 grade autoclaved sand aerated concrete block is novel in conception, rich in raw materials, simple in process and low in cost, is environment-friendly and energy-saving, is convenient to implement and has greater popularization performance.

The invention provides a chemical anchor bolt, a connecting structure for fixing a building attachment by using the chemical anchor bolt and a mounting method. A metal anchor rod of the chemical anchor bolt is provided with an anti-loosening anchor section and a fastening sleeve, wherein the fastening sleeve tightly presses a connected part under the action of a tool, and an inner hole is shrunk to tightly wrap the anti-loosening anchor section and simultaneously form a concavo-convex inner hole surface matched with anti-loosening stripes on the surface of the anti-loosening anchor section to form weldless permanent connection; a convex ring or a bump is arranged at the front end of the fastening sleeve, and is squeezed into a gap between the hole wall of a hole, through which the metal anchor rod penetrates, of the building attachment and the metal anchor rod to form squeezing or interference fit. The chemical anchor bolt can be used for realizing permanent firm connection without welding, loosening is avoided, the fastening strength is greatly strengthened, all uncertain factors influencing chemical gum are eliminated, the aim of safety is actually fulfilled, and the mounting labor and the mounting cost can be reduced; a fireproof and heat-resistant solution to the chemical anchor bolt is also disclosed, so that the chemical anchor bolt is applied to various fire zones.

The invention provides a high-safety undercutting anchor bolt and a connecting structure thereof. The undercutting anchor bolt comprises a fastening sleeve, and a metal anchor rod of the undercutting anchor bolt is provided with an anti-loose anchoring section. Under the action of a tool, the fastening sleeve tightly presses a connected part, an inner hole of the fastening sleeve shrinks to tightly wrap the anti-loose anchoring section, an concave-convex inner hole surface matching with an anti-loose stripe on the surface of the anti-loose anchoring section is formed, and accordingly permanent connection without welding is formed. A sleeve and an expansion component are two split independent elements, the sleeve of the undercutting anchor bolt is a plastic part, and one or multiple axial grooves are formed in the middle and the front of the outer wall of the sleeve. The undercutting anchor bolt has the advantages that permanent firm connection can be realized without welding, loosening is prevented, connection strength is improved greatly, anti-seismic requirements are met, and labor and cost can be saved; flexible anti-seismic measures are applied, so that anti-seismic performance is improved; by the aid of radial deformability of the sleeve and avoidance of the axial grooves, local bends in holes are penetrated to realize reliable connection, and cost is saved as reperforating is avoided.

The invention provides a drifting-proof blind rivet bolt and a connecting structure of a building appendage. The blind rivet bolt is provided with a fixing sleeve, and a metal rivet rod of the blind rivet bolt is provided with a dropping-proof riveting segment corresponding to the fixing sleeve; under the action of a tool, the fixing sleeve is pressed against a connecting part, an inner hole of the fixing sleeve is tightened and wrapped outside the dropping-proof riveting segment, and a bumpy inner-hole surface matching with dropping-preventing lines on the surface of the dropping-proof riveting segment is formed simultaneously; permanent connection is formed and welding is omitted. According to the drifting-proof blind rivet bolt, permanent and firm connection and dropping prevention can be realized, connecting strength is improved greatly, the requirement on shock absorption is met, and labor force and cost can be saved. Drifting-preventing and positioning relationship between the fixing sleeve and the building appendage is brought in, structure is simple, and using effect is good. The invention further provides a solution for fire proofing and heat resisting of the drifting-proof blind rivet bolt, and the drifting-proof blind rivet bolt is adaptable to various fire resisting areas.

The invention discloses an elastic fireproof wallboard which comprises a base layer, a frame layer, an adhesive layer, a plastering mortar layer, an insulation layer, a latex layer, a decorative coating and an abrasion-resistant layer. The base layer is covered by the frame layer. The frame layer is composed of a plurality of workpieces which are arranged in parallel or in a staggered mode and form filling cavities. The filling cavities are filled with filler. The frame layer is covered by the adhesive layer. The adhesive layer is covered by the plastering mortar layer. The plastering mortar layer is covered by the insulation layer. The insulation layer is covered by the latex layer. The upper surface of the latex layer is coated with the decorative coating made of decorative paint. The upper surface of the decorative coating is coated with the abrasion-resistant layer made of transparent abrasion-resistant paint.

The invention provides an autoclaved aerated concrete lightweight porous filling material, relating to green chemical preparation of aerated concrete and belonging to the field of novel environment-friendly fine chemical materials and green building materials. The autoclaved aerated concrete product is prepared by using calcium and siliceous materials as main raw materials, doping gas generating agents, regulating agents and air entraining agents, and carrying out hydration reaction, mold forming by pouring, blank forming by procuring, forming by cutting, autoclaved curing, out-kettle processing and other processes. The dry density, compressive strength, mean pore diameter and percent of pass of the product are respectively less than 236kg/m<3>, more than 0.59MPa, less than 0.48mm and more than 90%. By adding a small quantity of saponin concrete air entraining agents, the ratio of water to material, unit aluminium powder gas evolution and pouring stability in the production process and the volume, strength and quality of the product can be obviously increased. The filling material is novel in conception, rich in raw materials, simple in process and low in cost, is convenient to implement and has greater generalization performance. The product is a novel filling material and has the applications of sound absorption and insulation, heat insulation and floating on water surfaces.

The invention discloses a fireproof building exterior wall panel, which comprises a base layer, a fireproof layer and a wear-resistant decorative layer arranged sequentially from inside to outside; wherein the raw materials of the fireproof layer include: 97-100 parts of modified phenolic resin, melamine 22-25 parts of formaldehyde resin, 9-12 parts of liquid nitrile rubber, 14-17 parts of polyphenylene ether ketone, 0.9-1.2 parts of silane coupling agent, 13-16 parts of jute fiber, 5-8 parts of potassium titanate fiber, 23-26 parts of white carbon black, 21-24 parts of montmorillonite, 15-18 parts of foaming agent, 3-6 parts of foaming aid, 24-26 parts of hydrated zinc borate, 2-3 parts of anti-aging agent. The preparation method of the modified phenolic resin is as follows: react hydroquinone with diphenyl chlorophosphate to obtain the first material; react the first material with lauryl aldehyde to obtain the second material; Ammonium molybdate is reacted to obtain modified phenolic resin.

The invention provides a B06-grade autoclaved sand aerated concrete block prepared by adding saponin air entraining agents. The autoclaved aerated concrete block is prepared by using cement, lime and sand as main raw materials, doping gas generating agents, regulating agents and air entraining agents, and carrying out hydration reaction, mold forming by pouring, blank forming by procuring, forming by cutting, autoclaved curing and out-kettle processing. The dry density, compressive strength, mean pore diameter and percent of pass of the product are respectively less than 596kg/m<3>, more than 5.12MPa, less than 0.45mm and more than 97%. By adding a small quantity of saponin concrete air entraining agents, the ratio of water to material, unit aluminium powder gas evolution and pouring stability in the production process and the volume, strength and quality of the product can be obviously increased. The block is novel in conception, rich in raw materials, simple in process and low in cost, is convenient to implement and has greater generalization performance. The block is an environment-friendly and energy-saving wall material and can be applied to processing and construction of non-load-bearing walls, wallboards and roofing boards of buildings.

The invention discloses a novel fireproof plugging structure for civil air defense engineering, belongs to the technical field of fireproof plugging structures, and aims to solve the problem that oncean existing fireproof plugging structure at a pipeline continuously bears a high temperature of more than 300 DEG C, a load gradual losing effect is achieved, and smoke leakage is caused. An engineering pipeline is fixedly mounted in a heat-insulation fireproof curtain wall, a fireproof plugging mechanism is fixedly mounted at the joint of the engineering pipeline and the heat-insulation fireproof curtain wall, and an outer elastic fireproof sealant is arranged at the joint of the outer wall of the fireproof plugging mechanism and the heat-insulation fireproof curtain wall; an inner elastic fireproof sealant is arranged at the joint of the inner wall of the fireproof plugging mechanism and the heat-insulation fireproof curtain wall, a ceramic heat-resisting ring is arranged in the fireproof plugging mechanism and fixedly connected with the inner wall of the fireproof plugging mechanism through the inner elastic fireproof sealant, and air holes are formed in the ceramic heat-resistingring; and the plurality of air holes are formed.