摘要:
A method of forming a reinforced pressure vessel includes the steps of providing a thin wall cylinder, wrapping the cylinder with at least one layer of prepreg reinforcing fiber, wrapping the cylinder with at least one layer of perforated shrink tape, applying heat to the shrink wrapped cylinder to squeeze the at least one prepreg fiber layer to force resin to weep through the perforated shrink tape and cure the resin, and allowing the resin to remain on the outer surface of the shrink tape to form a protective layer on the pressure vessel.
摘要:
To produce a flexible pipe body, a length of tensile armour element (300) of pre-preg composite material is fed towards a fluid-retaining layer (602). The tensile armour element (300) passes through a guide (604) an a pre-heater (606). The tensile armour element (300) is then applied to the fluid-retaining layer (602), being wrapped around the fluid-retaining layer (602) by virtue of the rotation of the layer (602), the linear translation of the layer (602), and the fixed position of the tensile armour element feed (601). The element (300) is fed to the fluid-retaining layer under a constant, predetermined controlled tension. Positioning head (608) helps to position the element (300) on the fluid-retaining layer (602). As tensile armour element is wound onto the pipe body, the pipe body continues to move in a, linear direction and the pipe body moves through an oven (610).
摘要:
A medical device includes a proximal end, a distal end sized for introduction into a body lumen, and a lumen extending between the proximal and distal ends. The tubular device includes an inner liner including a coating on an inner surface thereof, a reinforcing layer surrounding at least a portion of the liner; and an outer layer surrounding the reinforcing layer and inner liner. The liner and outer layer may include multiple sections having different properties than one another, adjacent sections attached together by seams, which may be offset from one another. Apparatus and methods for making tubular devices with coated liners are also provided.
摘要:
A high-pressure composite pipe of the present invention comprises an inner layer pipe made of a synthetic resin, and a reinforcing layer formed by spirally winding a stretched polyolefin resin sheet on an external circumferential surface of the inner layer pipe. The synthetic resin for the inner layer pipe or a heat-sealable resin is filled into a gap defined by the stretched polyolefin resin sheet, thereby avoiding penetration of water from a cut surface of the pipe. A method of the present invention for manufacturing a high-pressure composite pipe comprises the steps of: manufacturing an inner layer pipe made of a synthetic resin; spirally winding a stretched polyolefin resin sheet on an external circumferential surface of the inner layer pipe; filling the synthetic resin for the inner layer pipe, in a melted state, into a gap defined by the stretched polyolefin resin sheet, wherein the stretched polyolefin resin sheet is heated in the wound state so as to generate a shrinkage stress in the stretched polyolefin resin sheet; and fusing the stretched polyolefin resin sheet and the inner layer pipe together.
摘要:
A tape delivery end-effector apparatus is, in an exemplary embodiment, a multiple-channel system for applying materials in tape form to a tooling mandrel. The end-effector apparatus is mounted on a multi-axis fiber placement machine and uses the machine's computer controlled guidance system. A preset constant tension is independently applied to each tape unspooled from spool holders by a separate servo motor, servo amplifier and feedback transducer for each spool holder. The transducer continuously measures the tape spool diameter. Two sets of rollers guide the tapes to the mandrel.
摘要:
The present invention is directed to a contactor 10 having a microporous membrane 12 and a shell 14 surrounding the membrane. A shell has a fluoropolymer inner surface and a composite structural body. The fluoropolymer inner surface is integrated into the composite structural body.
摘要:
A fiber-reinforced plastic rod is formed out of a core material and a surface material, the core material consisting of high-strength continuous fiber and a parent resin, the surface material consisting of polypropylene fiber. This fiber-reinforced plastic rod is not deteriorated even when mortar and concrete are autoclave-cured.
摘要:
A rigidized fibre filter element is produced from a precursor fibre web according to various methods. The precursor fibre web contains heat-shrinkable fibres or binder fibres or both. The web is exposed to temperatures sufficiently elevated to cause shrinkage of the fibres or melting of the binder. After cooling the web, the filter elements produced are self-supporting, and may have densities up to 500 kg/m³ to improve filtration while retaining good functional characteristics for operating pressure drop and air permeability. Rigidized fibre filter elements can be constructed of one material, and thus may be suitable for recycling.
摘要翻译:根据各种方法,由前体纤维网制造刚性纤维过滤元件。 前体纤维网包含热收缩纤维或粘合剂纤维或两者。 纸幅暴露在足够升高的温度下,导致纤维收缩或粘合剂熔化。 冷却后,所生产的过滤元件是自支撑的,并且可以具有高达500kg / m 3的密度以改善过滤,同时保持操作压降和透气性的良好功能特征。 刚性纤维过滤元件可由一种材料构成,因此可适用于回收。
摘要:
Die Schweissmuffe weist einen Muffenkörper (1) aus einem thermoplastischen Material auf, an dessen Innenfläche (2) eine Widerstandsdrahtwicklung (3) angeordnet ist. Am Aussenumfang (5) des Muffenkörpers (1) ist durch Aufpressen ein Verstärkungsring (6) angeordnet, welcher durch das Aufweiten Umfangs-Spannungen aufweist. Diese Spannungen wirken radial auf den Muffenkörper (1) und erhöhen den für eine gute Schweissverbindung erforderlichen Schweissdruck.