摘要:
A part includes a continuous fiber substantially encased in a formation material. The fiber and formation material are arranged in a plurality of alternating layers such that the formation material of a first one of the alternating layers adheres to the formation material of a second one of the alternating layers over the length of the continuous fiber. The part may include a thin-walled hollow member such as a duct. In some embodiments a part comprises a continuous fiber prepared by an additive manufacturing process comprising the steps of: depositing a composite material on a print bed using a print head, the composite material comprising a continuous fiber and a formation material in intimate contact with the continuous fiber; moving the print head and/or the print bed during the depositing of the composite material; and consolidating the composite material.
摘要:
An apparatus (1) and method for introducing a foil (10) to be laminated to an inner surface (15) of an elongated duct (6), wherein the foil is providable on an axle (2), the axle being movable from a first position outside of the duct, where the foil is provided on the axle, to a second position inside the duct where the foil is in position for lamination to the inner surface of the duct.
摘要:
A fire-rated exhaust duct system comprising a modular configuration or structure. The fire-rated exhaust duct system comprises a plurality of exhaust duct sections. Each of the exhaust duct sections is configured to be joined or connected with other exhaust duct sections in the field or at an installation site, e.g. in building housing a kitchen facility or a laboratory facility to form longer sections or runs for exhaust duct system.
摘要:
A coating material in laminate form, intended for an insulation system for installation elements such as pipes, containers, and ventilation ducts. The insulation system includes a surface that the coating material must cover. The coating material has an outer, first layer made of metal foil, for example an aluminum foil, having a thickness within the 20 to 100 mm and more preferably 30 to 60 mm range, together with a plastic layer placed between the metal foil first layer and the surface of the insulation system.
摘要:
A heat dissipating apparatus in an electrical device includes a air duct. The air duct includes an air inlet and an air outlet. A plurality of ventilation members are attached to the air inlet and the air outlet thereof. Each ventilation member defines a number of ventilation holes of a certain size calculated to keep EMI out. A coated layer formed on an inner surface of the air duct to shield electromagnetic waves which may be generated by the electrical components of the device.
摘要:
At a climate, respectively ventilating channel, for the inner-and/or outer lining, insulating elements with a temperature resistance to observe normative demands of the fire resistance categories are being used, whose fiber composition features an alkali/earth alkali mass relation of
摘要翻译:在气候条件下,分别是通风通道,对于内衬和/或外衬,正在使用具有耐温度性能的耐火性等级的绝缘元件,其耐热等级的碱/碱碱质量关系为 1,其纤维结构由平均几何纤维直径<=4μm确定,其总密度在20至120kg / m 3的范围内,其结合剂部分为 在4.5至7重量%的范围内,或以0.5至1重量%范围内的丝网垫的形式。
摘要:
A semi-rigid, flexible duct including a pair of coaxial sleeves, namely an inner sleeve and an outer sleeve disposed parallel to and about the inner sleeve and a resilient wound element disposed between the sleeves. Each of the inner sleeve and the outer sleeve includes a first layer having metallic properties and at least one of them further includes a second, plastic layer bonded to the first layer. The wound element imparts corrugations to the two sleeves, such that the duct is extendible between a compacted configuration suitable for storage and for shipping and an extended configuration suitable for installation in a gas transport arrangement. All of the layers of both the inner sleeve and the outer sleeve are of a thickness predetermined to together render the duct substantially rigid when in an extended configuration and predetermined to together enable the duct to maintain its substantial rigidity upon extension from a compacted configuration.
摘要:
Water-resistant fibrous air duct insulation products and methods for making such products. The products may include a duct board or a duct tube including a first layer of resin-bonded fibrous mat having a second layer of durable, preferably non-woven, facing material adhered thereto, wherein the facing material defines the air stream surface for the board or tube. The duct board or tube is preferably rendered water-repellent at the air stream surface by incorporating a hydrophobic agent into the adhesive used to adhere the second layer to the first layer.
摘要:
The invention relates to an insulation system for pipes, containers, ventilation ducts and like installation parts which have an outer surface temperature which periodically is below the dew point of the ambient air. The insulation system comprises a thermally insulating layer and a vapour barrier arranged on one side of the thermally insulating layer. The insulation system has a hygroscopic material which is arranged between the vapour barrier and the thermally insulating layer, which hygroscopic material is at least partially connected with the vapour barrier. A combination of the vapour barrier and the hygroscopic material is connected with the thermally insulating layer in such a manner that the hygroscopic material partially makes contact with the thermally insulating layer.
摘要:
A multi-layer duct for distributing air in air conditioning systems for vehicles, in particular for aircrafts, includes at least one layer of a prepreg of resin reinforced with glass fibre fabric and at least one layer of a prepreg of resin reinforced with a hybrid fabric of glass and carbon fibres. The layers are superimposed coaxially. A fixing element is also provided for securing an air distribution duct to the structure of an aircraft, having a saddle-shaped body comprising a base portion for fixing to the structure of the aircraft. The base portion is connected to a pair of arms having respective curved portions at their free ends for fixing by adhesive to the external surface of the duct. The curved portions are shaped so as to mate with the surface of the duct.