摘要:
The invention relates to a method for reinforcing an existing base structure with at least one reinforcing structure (1) so as to form a support structure, having the following steps: producing the at least one reinforcing structure (1), connecting the at least one reinforcing structure (1) to the base structure such that the at least one reinforcing structure (1) is connected to the base structure in a connection position, and the base structure together with the at least one reinforcing structure (1) forms the support structure. The base structure is to be inexpensive and reliably reinforceable with little technical complexity using reinforcing structures (1). This is achieved in that the at least one reinforcing structure (1), in particular all of the reinforcing structures (1), is or are made of a composite material comprising fibers and a matrix by means of pultrusion and/or extrusion, and a pultrusion unit (6) and/or an extrusion unit (7) is moved in space such that the at least one reinforcing structure (1), in particular all of the reinforcing structures (1), is or are pultruded and/or extruded onto the base structure at the respective required connection position after the pultrusion and/or extrusion.
摘要:
Die vorliegende Erfindung betrifft einen Verbund aus zwei Festkörpern, die über eine Kontaktfläche adhäsiv miteinander verbunden sind, wobei die Adhäsion durch eine oberflächige Feinstrukturierung bewirkt wird und die Kontaktflächen beider Festkörper des Verbundes eine Feinstrukturierung aufweisen.
摘要:
The invention relates to a method for manufacturing a wheel comprising a step (a) during which a liquid to be polymerised is cast into a first mould (5) so as to solidify same into a tubular preform (4), with main axis (XX'), the first mould (5) comprising modelling cores in order to form recesses (9), of the rib type, in the radial thickness (E4) of the tubular preform; followed by a cutting step (b), during which the tubular preform (4) is cut perpendicular to the main axis (XX') thereof, and secant to the recesses (9), so as to obtain a tubular preform section forming a rim (10); followed by an overmoulding step (d), during which said rim (10) is placed in a second mould, concentrically with a central supporting member, such as a bushing or a shaft, and a polymer filling material is injected so as to create an intermediate disc that provides the attachment of the rim to the central supporting member.
摘要:
The invention relates to a process for manufacturing an ophthalmic lens element equipped with an insert (1), this ophthalmic lens element comprising a front face and a back face, comprising steps consisting in: providing a first portion or intermediate product (2, 2″) made of a first material comprising a first and second frontal face (2A, 2B, 2A″, 2B″), said second face forming the back or front face of said ophthalmic lens element; placing the insert (1) on said first face of said intermediate product; depositing a second material in liquid form on said first face of the intermediate product (2, 2″) so as to cover at least partially said insert with said second material; and solidifying said second material in order to form an integral second portion (4) of said intermediate product. According to the invention, said first material is organic.
摘要:
A composite element for the realization of protection devices of parts of the human body includes a matrix, a reinforcing element, at least partially embedded in the matrix, wherein the reinforcing element has at least one opening shaped so as to define an undercut between the matrix and the reinforcing element, such undercut being suitable for determining a mechanical constraint between the matrix and the reinforcement element.
摘要:
A method of manufacturing a bar member 22 including a pipe 10 and metal members 17, 18 includes: a step of forming a core member including a metal ring 16 having an outer peripheral face 16A subjected to face roughening and a mandrel; a step of winding glass fibers 50 around the outer peripheral face 16A; a step of winding a carbon fiber prepreg 26 around the core member; a step of forming the pipe 10 externally fitted and fixed to the outer peripheral face 16A by baking and curing the carbon fiber prepreg 26; a step of pulling the mandrel out of the pipe 10; and a step of screwing together the metal members 17, 18 and the metal ring 16.
摘要:
A plastics moulding process is provided in which a first (2) and a second plastic part (3) are moulded such that a contact surface is formed between the two parts. The first part (2) is moulded firstly and, whilst at least the contact surface is still in a liquid or plastic state, an attachment promoting powder (16) that is compatible with, and has the characteristic of attaching to, the plastic of the first part (2), is applied to it. Thereafter, the second part (3) is moulded so as to contact the first part at the contact surfaces such that as it solidifies, it attaches to the attachment promoting powder (16) and thereby to the first part (2). The second part (3) may be a plastic foam filling for a hollow first part (2). The attachment promoting powder (16) may be a suitable grade of diatomaceous earth or a natural or synthetic equivalent.
摘要:
The present invention relates to a multi-layer heat-shrinkable tubular sleeve which can be used to re-insulate and screen the connection between cables such as energy cables, a belonging cable connection using such a multi-layer sleeve and to a method for fabricating the multi-layer heat-shrinkable tubular sleeve according to the present invention. The multi-layer heat-shrinkable tubular sleeve (100, 100') comprises at least one hold-out layer (102, 108) formed from a heat-shrinkable material and at least one electrically insulating inner layer (104) formed from an elastomeric material, wherein said hold-out layer comprises an electrically conductive layer (102). Said elastomeric inner layer (104) comprises a plurality of essentially ring-shaped, electrically conductive stress control elements (106) which are distanced from each other in a longitudinal direction and are embedded into the elastomeric inner layer (104) at a surface that is brought into contact with a cable in a mounted state.
摘要:
A method of pre-treating an electrically conductive substrate (12) for bonding a non-metallic material (14) thereon is provided. The method includes: (a) placing the substrate (12) in a laser range of a laser source (16); and (b) irradiating a surface (18) of the substrate (12) with a laser light (24) from the laser source (16), thereby forming a micro-structure (20) on the substrate surface (18). The micro-structure (20) has at least one of: a) an I/Ra ratio of at least 0.2 μm -1 , I being the surface index, Ra being the average roughness; or b) an I/Rz ratio of at least 0.03 μm -1 , I being the surface index, Rz being the average peak-to-valley distance. An electrically conductive substrate (12), a metal insert (12, 603) for use with a solid insulation component (704, 706, 712, 714), an insulator-conductor assembly (26), and a gas-insulated switchgear station (700) are also provided as well as use of an insulator-conductor assembly (26, 600) in an electrical power system (700).