13 results about "Fire-resistance rating" patented technology

The invention relates to the technical field of fireproof door leaves, and particularly discloses an integrally-formed hollow fireproof door leaf and a process thereof.The integrally-formed hollow fireproof door leaf comprises a fireproof door leaf core body, two layers of ash silicon plates are arranged on the two opposite sides of the fireproof door leaf core body, and a decorative surface layer is arranged on the surface of the side, away from the fireproof door leaf core body, of each ash silicon plate; a hinge side grey silicon plate strip is arranged between the two layers of grey silicon plates at one end of the fireproof door leaf core body, and a light hollow channel is formed in the fireproof door leaf core body. A series of structures are arranged, the forced requirement of the latest fireproof door for raw materials is met, halogenation is avoided, the A1-level fireproof performance can be achieved through a thin door body, the surface of the frame can be decorated, the weight of the door body can be customized, the material density of the door core part is adjustable and controllable, the structure is stable, performance is stable, and deformation caused by damp is avoided; the slurry is similar to the raw material components of the frame plate, the contact interface is firmly bonded, and the hollow structure can reduce the weight of the door body.

This invention discloses an insulated flame-retardant cable structure, comprising a cable core and an external protective tube covering the cable core. The external protective tube includes several rigid protective tube units, flexible fire-resistant hinges connecting adjacent rigid protective tube units, and an outer sleeve covering the rigid protective tube units and the flexible fire-resistant hinges. The rigid protective tube units and flexible fire-resistant hinges are alternately connected in series to form a flexible structure. Compared to integral armored cables, this invention, through its composite structure of alternating rigid protective tube units and flexible fire-resistant hinges, achieves excellent flexibility while maintaining a high fire resistance rating, completely overcoming the difficulties of laying rigid structures. Compared to purely flexible flame-retardant cables, its segmented rigid-flexible composite structure achieves structural fire-resistant integrity under flame conditions, avoiding the fatal weakness of single polymer sheaths shrinking, melting, and cracking upon exposure to fire, leading to the collapse of the fire resistance line.

This invention belongs to the technical field of metal composite panels, specifically relating to a fire-resistant composite aluminum strip and its preparation method. The fire-resistant composite aluminum strip comprises an upper aluminum strip, a middle fire-resistant material, and a lower copper strip. The middle fire-resistant material comprises the following components by weight: 30-40 parts ethylene-vinyl acetate copolymer; 20-25 parts epoxy resin; 15-20 parts styrene-maleic anhydride copolymer; 10-15 parts linear low-density polyethylene; and 8-10 parts highly flame-retardant basalt fiber. The middle fire-resistant material provided by this invention has good mechanical properties, bonding properties, and excellent flame-retardant properties. Using it for bonding aluminum and copper strips can yield a composite aluminum strip with good bending strength and a high fire resistance rating, achieving an A1 fire rating, making it particularly suitable for fields with high flame-retardant requirements.

The utility model belongs to bridge engineering technical field discloses a kind of anchorage mass concrete curing device, including anchorage embedded part, heat preservation and moisture retention layer and fixed connection component, water-retaining curing film has sufficient moisture reserve and can slow-release own moisture evaporation, effectively reduce concrete moisture evaporation outward, prevent shrinkage crack caused by water loss, with long-term moisturizing effect;Fireproofing layer is attached to the side of water-retaining curing film away from mass concrete structure, with heat insulation capacity, prevent external high temperature or sudden drop in temperature directly act on concrete surface, buffer temperature difference change, reduce the risk of temperature crack caused by thermal stress;It has fireproof function simultaneously, with good fire resistance rating;Heat preservation and moisture retention layer is detachably fixedly connected with anchorage embedded part by fixed connection component, realize reliable, reusable fixed connection between curing layer and concrete structure, it is convenient to disassemble and reuse, improve service period, reduce construction cost.

The invention discloses an intelligent loading acceptance system and method for fire resistance of a building structure, and the system comprises a fire resistance acceptance scheme generation module which is used for obtaining the fire resistance grade requirement of a building component, and formulating a fire resistance acceptance scheme of the building component; the high-temperature simulation and loading module is used for simulating the thermal stress and load action of the building in the fire disaster; the sensor monitoring module is used for monitoring building component reaction data of the building structure in the testing process in real time and storing the data in the fire simulation experiment database; the fire resistance evaluation module is used for evaluating the fire resistance of each building component in the key test area; and the fire resistance acceptance and display module is used for generating a fire resistance acceptance report of the building component. Through the technical method provided by the invention, the acceptance process is optimized, the structural safety of the high-rise building under the fire condition is enhanced, and a more scientific, efficient and reliable fire resistance evaluation scheme is provided for the building industry.

The utility model discloses a low temperature place composite thermal insulation structure which comprises a protective layer, a thermal insulation layer, a vapor barrier layer, a first plastering layer, a base layer and a second plastering layer, the first plastering layer is arranged on the first side face, facing the normal temperature side, of the base layer, and the second plastering layer is arranged on the second side face, facing the low temperature side, of the base layer; the vapor barrier layer is laid on the second plastering layer, the heat preservation layer is arranged on the vapor barrier layer, and the protection layer is arranged on the heat preservation layer. The composite heat preservation structure for the low-temperature place is stable and reliable in heat preservation performance and fire-fighting fire resistance rating, good in fire-fighting fire resistance rating and thermal performance, and capable of effectively solving the problem that the thermal performance and the fire-fighting performance of a conventional single heat preservation material cannot meet the requirement for the good performance.

This invention belongs to the field of coating technology, and specifically relates to a fire-retardant coating material for color-coated aluminum sheets and strips and its preparation method, comprising the following raw materials in parts by weight: 35-40 parts epoxy resin base, 25-30 parts composite modified flame retardant, 5-10 parts modified reinforcing filler, 3-6 parts char-forming accelerator, 1-2 parts dispersant, 0.5-1 part defoamer, 15-20 parts solvent, and 2-4 parts wear-resistant additive; wherein, the composite modified flame retardant is prepared by first modifying melamine cyanurate, then reacting it with a prepolymer synthesized from diethanolamine and adipic acid, and adding ammonium polyphosphate and expandable graphite; the modified reinforcing filler is prepared by treating silica with a silane coupling agent, and then reacting it with chitosan and zinc nitrate. This coating material, through the synergistic effect of its components, exhibits excellent fire resistance, adhesion, corrosion resistance, and bending resistance, and is suitable for surface protection of color-coated aluminum sheets and strips, effectively improving the fire resistance rating and service life of aluminum sheets and strips.

The utility model relates to a concrete energy storage prefabricated cabin, which is structurally characterized in that a concrete energy storage prefabricated cabin unit comprises a concrete energy storage prefabricated cabin body, a concrete fireproof door and an energy storage battery pack, a concrete fireproof door is arranged at an opening in the front face of the concrete energy storage prefabricated cabin body, and a plurality of layers of energy storage battery packs are evenly placed in the concrete energy storage prefabricated cabin body at intervals from top to bottom. The utility model has the advantages that the structural design is reasonable, a lithium battery energy storage steel structure in the prior art is changed into a concrete structure, the fire-resistant grade can be effectively improved, and the problem that the lithium battery energy storage steel structure cannot meet the standard fire-resistant grade due to low fire-fighting fire-resistant grade is effectively solved; and a certain fireproof interval is not required to be reserved like a steel structure, and the lithium battery can be stacked, so that the energy storage occupied area of the lithium battery can be effectively reduced.

This invention discloses a water-based coating with fire-retardant and thermal insulation functions, its preparation method, and its application, relating to the field of water-based coatings. This water-based coating with fire-retardant and thermal insulation functions, through an innovative raw material ratio, combines inorganic and organic flame retardants, along with surface-treated insulating glass microspheres and a specific ratio of inorganic hybrid emulsion, successfully enabling the coating to simultaneously possess excellent fire-retardant and thermal insulation properties. Test results of Examples 1-3 show that the coatings all achieve a 1-hour fire resistance rating, with the lowest thermal conductivity reduced to 0.042 W / (m·K), far exceeding the performance of the control example, which only possesses basic fire-retardant functions and insufficient thermal insulation performance. When this multifunctional coating is applied to building exteriors, industrial equipment surfaces, and vehicle interiors, it can effectively prevent the spread of fire, ensure personnel safety, reduce energy consumption, and improve energy efficiency.

The invention discloses an aerogel felt cold insulation structure special for the low-temperature field and a construction method thereof, the aerogel felt cold insulation structure has the advantages of low heat conduction, strong moisture-proof and water vapor-blocking functions, no stress corrosion to stainless steel, high fireproof grade and the like, is especially suitable for cold insulation working conditions of-196 DEG C to 150 DEG C, and can be applied to the field of cold insulation. And the pertinence of working conditions and the advancement of performance are relatively high.

The invention provides a composite intumescent flame retardant and a preparation method thereof. The composite intumescent flame retardant provided by the invention is prepared from the following components in parts by weight: 30-50 parts of a phytic acid derivative; 20 to 40 parts of MPP (modified polypropylene); 5 to 15 parts of modified nanosheets; and 10-20 parts of a hydrogen bond cross-linking agent. The design of a flame-retardant system is realized through'covalent grafting-hydrogen bond crosslinking-nano synergy '. The thermal stability of the composite material is improved by utilizing Si-O covalent bonds grafted with phytic acid; a hydrogen bond is formed by-NH2 in the melamine pyrophosphate and-COOH in the polyamide oligomer, and a cross-linked carbon layer is formed during combustion, so that the plasticizing defect of polyamide is overcome; and the montmorillonite is combined with a P = O bond hydrogen bond in the phytic acid derivative, so that the nanosheet is catalyzed to form carbon at high temperature and can be decomposed into a SiO2 / Al2O3 ceramic layer, and the thermal stability and interfacial compatibility of polyamide are improved. When the composite intumescent flame retardant is used for modifying a polyamide composite material, the limit oxygen index and the fireproof grade of the polyamide material can be remarkably improved under the condition of low addition amount.

The invention relates to a wall element (1) for building structures, having an outer layer (6), an insulating layer (4) made of a biological material, and an inner layer (5). A high degree of fire resistance is achieved in that supporting beams (3) for supporting the insulating layer (4) are arranged between the outer layer (6) and the insulating layer (5), and in that at least one retaining grid (11) for retaining the insulating layer (4) is provided in the region of the outer layer (6), said retaining grid being fastened to the supporting beams (3). The combination of a clay layer (10) with an embedded metal grid (11a) results in the highest fire resistance rating. The invention also relates to a method for producing such a wall element.

Fire resistant gypsum panels are provided herein, with assemblies including the same, and methods for making the same. A gypsum panel includes a set gypsum core and a mat facing material. The set gypsum core includes a fire resistant additive. The fire resistant additive consists essentially of clay, or a non-intumescent fire resistant additive. The panel displays an acceptable fire rating without requiring the use of vermiculite or intumescent materials.