摘要:
A structural fabric suitable for lining pipes and pipes lined with the structural fabric. The fabric includes a strengthening layer laminated to a watertight layer. The strengthening layer may include carbon fiber bundles stitched to a watertight layer of woven glass fibers. In some embodiments, the strengthening layer includes lengthwise oriented carbon fiber bundles and widthwise oriented carbon fiber bundles bound together in a non-woven, non-crimp arrangement. The widthwise oriented bundles can have about three-times greater weight per unit area than the lengthwise oriented bundles. The watertight layer provides a watertight barrier when impregnated with the curable polymer, applied to the interior surface of the pipe, and cured. The watertight layer may include lengthwise and widthwise oriented bundles of glass fiber woven into one of a satin and twill weave.
摘要:
A fluid conduit comprises a wall defining a fluid flow path and a confinement feature within the wall and being configured to confine energy within a cavity, wherein at least a portion of the fluid flow path extends through the cavity. The confinement feature may be configured to confine electromagnetic energy. The fluid conduit may comprise an oscillator defined by the cavity and a positive feedback arrangement. The fluid conduit may be configured for sensing a property of a fluid present in or flowing through the fluid conduit or for use in sensing a property of a fluid present in or flowing through the fluid conduit.
摘要:
A flexible tubular duct for conveying corrosive fluids and used in the filed of petroleum extraction at sea. A flexible tubular duct includes at least one inner carcass (2) and a polymer sealing sheath (3). The inner carcass has a reinforcement metal profile (7) that is helically wound. The reinforcement metal profile (7) is made of an alloy having the following weight composition: 30 to 32% of Ni; 26 to 28% of Cr; 6 to 7% of Mo; 0.10 to 0.3% of N; 0.015% of C; 2% at most of Mn; 0.5 to 1.5% of Cu; 0.5% at most of impurities, the remainder consisting of Fe.
摘要:
A multilayer insulation has first and second outer polymeric layers having respective first and second outer metallized surfaces and respective first and second bonding layers inner side thereof. A third metallized coating is between the outer first and second polymeric layers. An air cellular assembly is between the first bonding layer and the second bonding layer. The air-cellular assembly has a plurality of air-filled cells between a first air cellular film and a second air-cellular film. In one embodiment, the third metallized coating is directly bonded to the first bonding layer, the second bonding layer, or a third bonding layer. Another embodiment has a total polymeric thickness of from 7 to 20 mils, a total thickness of from 1.5 to 4 centimeters, and an intrinsic normalized R-Value per inch of at least 2.9. A climate control duct can be surrounded by the multilayer insulation laminate.
摘要:
A glass-fiber reinforced plastic pipe comprises a pipe body and an inner core fixedly provided on an inner wall of the pipe body, wherein an upper end of the inner core is lower than an upper end of the pipe body, so that a first heat-insulating space is formed between the upper ends of the inner core and the pipe body, and a lower end of the inner core is higher than a lower end of the pipe body, so that a second heat-insulating space is formed between the lower ends of the inner core and the pipe body. Due to the inner core as a reinforce structure, the shear resistance strength of the glass-fiber reinforced plastic pipe is improved without increasing the thickness of the pipe wall, and furthermore the mechanical performance of a supporting device of the cryogenic pressure vessel is improved.
摘要:
An object of the present invention is to provide a multilayered pipe having a layer comprising a resin composition containing EVOH, which is unlikely to exhibit the occurrence of cracking in the EVOH layer due to oxidative degeneration and has excellent gas barrier property even during long-term usage at high temperatures, and also to provide a resin composition for obtaining the multilayered pipe. The present invention relates to a resin composition containing 0.001 to 5 parts by mass of an antioxidant (B) and 0.00001 to 0.3 parts by mass of a conjugated polyene compound (C) having a molecular weight of 1000 or less, relative to 100 parts by mass of an ethylene-vinyl alcohol copolymer (A).
摘要:
Described is a chromatography a chromatography apparatus that includes a microfluidic substrate, a coupler and a sealing fitting. The microfluidic substrate can include one or more chromatography columns, such as analytical columns or trap columns, and an inlet in communication with the one or more chromatography columns. The coupler is diffusion bonded to the surface of the microfluidic substrate so that an opening in the coupler is aligned to the inlet in the microfluidic substrate. The sealing fitting includes a heat-resistant sealant disposed in the opening of the coupler and in contact with the surface of the substrate. The coupler and sealing fitting enable a compact fluid-tight connection to the inlet of the microfluidic substrate that exhibits high tensile and torsional strength, and does not require the use of adhesives.
摘要:
A method and apparatus for conducting an electrical current between a first transport member and a second transport member. In one illustrative embodiment, a coupling assembly comprises a first fitting associated with a first end of a first transport member, a second fitting associated with a second end of a second transport member, and a seal. The seal is configured for placement around the first fitting and the second fitting when the first end of the first transport member is positioned relative to the second end of the second transport member. The seal is further configured to seal an interface between the first transport member and the second transport member. The seal is comprised of a material configured such that the seal has a level of conductivity within a selected range and such that a conductive pathway is formed between the first transport member and the second transport member.
摘要:
An insulator having an inner surface for covering an exhaust system of an internal-combustion engine includes a cover member having a surface, a joint member formed on the surface of the cover member, and a mat member made of material including at least one of ceramic fibers and glass fibers, the mat member being attached to the cover member through binding of the fibers to the joint member, and the mat member being exposed to form the inner surface.
摘要:
Provided is a steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. In the steel sheet for manufacturing a pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on a surface of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 μm thus having corrosion resistance against fuel vapor. In the pipe and the fuel supply pipe, a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on an inner surface of a pipe formed of a steel sheet, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 μm. In a fuel supply pipe 20 for supplying fuel to a fuel tank 23, the fuel supply pipe includes: a large-diameter pipe portion 21 through which the fuel passes; and a small-diameter pipe portion 22 which makes an upper portion of the large-diameter pipe portion and a lower portion of the large-diameter pipe portion communicate with each other for ventilation, and a Fe—Ni diffusion layer and a softened Ni layer which is provided on the Fe—Ni diffusion layer are formed on an inner surface of at least the small-diameter pipe portion, and a thickness of the softened Ni layer is set to a value which falls within a range of 0.9 to 8.1 μm.