摘要:
A textile sleeve constructed in accordance with one aspect of the invention provides fire protection to an oil or fuel fluid conveying conduit and meets the AS1055 Class A protection requirements at a zero flow rate and the AS1055 Class B protection requirements at a zero flow rate. The textile sleeve includes a single tubular textile wall formed from at least one of the group consisting of basalt, silica, ceramic and fiberglass yarn. The wall has an outer surface and an inner surface bounding a cavity sized for receipt of the fluid conveying conduit. A coating of silicone rubber is adhered to the outer surface of the wall, and a flame retardant additive is mixed with the silicone rubber to form a coating composition. The flame retardant additive is selected from the group consisting of at least one of zinc borate, magnesium hydroxide and aluminum hydroxide.
摘要:
A hybrid yarn filament and sleeve constructed therefrom for protecting elongate members against at least one of EMI, RFI or ESD is provided, along with methods of constructing the hybrid yarn filament and sleeves. The hybrid yarn filament has a nonconductive filament and at least one conductive wire filament overlying an outer surface of the nonconductive filament. The hybrid yarn filament is arranged in electrical communication with itself or other hybrid yarn filaments during construction of the sleeve to provide uniform shielding against EMI, RFI, and and/or ESD.
摘要:
A fabric sleeve and hybrid yarn filament used in construction of the sleeve for protecting elongate members against at least one of EMI, RFI or ESD, and methods of construction of the sleeve and hybrid yarn filament. The sleeve includes at least one interlaced hybrid yarn filament having a non-conductive filament and at least one conductive wire filament overlying an outer surface of the non-conductive filament. The hybrid yarn filament is arranged in electrical communication with itself or other hybrid yarn filaments to provide uniform shielding against EMI, RFI, and/or ESD.
摘要:
Heat transfer elements for rotary regenerative heat exchangers are formed with spacing ridges or notches having flow-disrupting indentations in the peaks of the notches formed at selected intervals to project into the flow channels. These projections interrupt the boundary layer and cause turbulence and mixing to enhance the heat transfer. Various methods of forming the indentations are disclosed.
摘要:
A zero-halogen flame-retardant compound and continuous materials extruded therefrom comprise poly(ethylene terephthalate) (PET), fire-retardant ingredients melamine cyanurate (MC) and melamine polyphosphate (MPP), and an organo titanate coupling agent. The coupling agent acts as a dispersion agent to the fine powders of PET, MC and MPP and also allows the resin of the fine powders to be compounded at a reduced temperature which prevents degradation of the PET. The compound can be extruded as a thin film, sheet or tubing, and also as a filament or yarn, including monofilaments and multifilaments, which can ultimately be used to construct a protective sleeve.
摘要:
A continuous halogen-free flame-retardant filament and method of forming thereof includes providing MC, a phosphorus compound, and PET, and then, forming a mixture of the MC, phosphorus compound, and PET. And lastly, extruding the mixture to form the halogen-free flame-retardant filament. The filament can be braided, woven or knitted into a variety of fabric constructions, such as, for example, sleeves for protecting wires.
摘要:
A zero-halogen flame-retardant compound and continuous materials extruded therefrom comprise poly(ethylene terephthalate) (PET), fire-retardant ingredients melamine cyanurate (MC) and melamine polyphosphate (MPP), and an organo titanate coupling agent. The coupling agent acts as a dispersion agent to the fine powders of PET, MC and MPP and also allows the resin of the fine powders to be compounded at a reduced temperature which prevents degradation of the PET. The compound can be extruded as a thin film, sheet or tubing, and also as a filament or yarn, including monofilaments and multifilaments, which can ultimately be used to construct a protective sleeve.
摘要:
A halogen-free flame-retardant compound and method of forming a continuous material therefrom includes compounding poly(ethylene terephthalate) (PET) with fire-retardant ingredients melamine cyanurate (MC) and melamine polyphosphate (MPP). The compound is then formed into pellets and/or extruded as a thin film or sheet, and also as a filament or yarn, including monofilaments and multifilaments.