摘要:
A net is provided having a plurality of net members, the net members being arranged in a lattice structure and having a thickness (D1). The net is further provided with attachment devices having a thickness (D2) which are connected to the net members, the thickness (D2) of the attachment devices being larger that the thickness of the net members (D1) at least at the places of connection through which loads are transmitted between the net members and the attachment devices. The ratio between the thickness of the net members and the thickness of the attachment devices (D1/D2) is at least 1.15. The net is useful as a barrier net to secure an off-limits area and as a cargo net to restrain cargo movement on a platform of a pallet.
摘要:
The invention relates to a flexible article having resistance against ballistic impacts wherein said article comprises a stack of at least two unconnected plies, each ply containing at least two connected monolayers containing polymeric tapes and wherein said monolayers are free of any matrix material.
摘要:
The invention relates to a gel spun, ultrahigh molecular weight polyethylene (UHMWPE) multifilament yarn characterized in that said yarn comprises individual monofilaments having a coefficient of variation of their linear density, hereafter CVintra, of less than 30%, wherein the CVintra of a monofilament was determined from linear density values corresponding to a number of 20 representative lengths randomly extracted by cutting from said monofilament and using Formula 1 wherein χi is the linear density of any one of the representative lengths extracted from the monofilament under investigation and Formula 1A is the averaged linear density over the n=20 measured linear densities of said n=20 representative lengths. The invention also relates to a gel spun UHMWPE multifilament yarn characterized in that the yarn has a coefficient of variation in linear density between the monofilaments comprising said yarn, hereafter CVinter, of less than 50%. The invention also relates to a gel spinning process of producing thereof characterized in that a chamber is present before the spinning plate such that no further partitioning of the UHMWPE solution takes place before said solution being finally partitioned into individual monofilaments by the spinning plate and in which chamber the solution has a residence time τ at a constant throughput of UHMWPE solution of at least 5 sec. The invention also relates to a rope, net, medical cable or a composite comprising the yarns of the invention.
摘要:
A biocompatible medical component comprising•a hybrid fabric comprising i. at least one type of second fibre, and ii. at least one type of first fibre, and•a structural component, wherein the Young's modulus of said second fibre is at least 125% of the Young's modulus of the first fiber.
摘要:
The invention relates to a gel spun, ultrahigh molecular weight polyethylene (UHMWPE) multifilament yarn characterized in that said yarn comprises individual monofilaments having a coefficient of variation of their linear density, hereafter CVintra, of less than 30%, wherein the CVintra of a monofilament was determined from linear density values corresponding to a number of 20 representative lengths randomly extracted by cutting from said monofilament and using Formula 1 wherein χi is the linear density of any one of the representative lengths extracted from the monofilament under investigation and Formula 1A is the averaged linear density over the n=20 measured linear densities of said n=20 representative lengths. The invention also relates to a gel spun UHMWPE multifilament yarn characterized in that the yarn has a coefficient of variation in linear density between the monofilaments comprising said yarn, hereafter CVinter, of less than 50%. The invention also relates to a gel spinning process of producing thereof characterized in that a chamber is present before the spinning plate such that no further partitioning of the UHMWPE solution takes place before said solution being finally partitioned into individual monofilaments by the spinning plate and in which chamber the solution has a residence time τ at a constant throughput of UHMWPE solution of at least 5 sec. The invention also relates to a rope, net, medical cable or a composite comprising the yarns of the invention.
摘要:
Bone fixing devices include (I) a surgical cable having a first end and a second end and (II) at least a first fixing plate and a second fixing plate. The first and second fixing plates are respectively provided with first and second central holes and first and second rings surrounding the first and second holes. The circumference of each fixing plate defines an outer edge of its respective ring and an inner edge of the ring being adjacent to the hole it surrounds. The first fixing plate is in a stacked position on top of the second plate so as to define a gap therebetween with the plates and the holes at least partly overlapping each other. The cable ends follow a continuous trajectory running around and between the plates and through the holes in such way that by drawing the cable ends the cable is tensioned around the bone parts so as to and fixate the same.
摘要:
Fixing device comprising (I) a surgical cable (16) having a first and a second end and (II) at least a first (2) and a second (4) fixing plate having a first (6) resp. second (8) central hole and a first (10) resp. second (12) ring surrounding said first resp. second hole, the circumference (20) of each fixing plate forming an outer edge of its ring and an inner edge of its ring being adjacent to the hole it surrounds, the first fixing plate being in a stacked position on top of the second plate leaving a gap (26) between the plates and the holes at least partly overlapping each other, wherein in the ring of one of the fixing plates in its surface facing the other fixing plate a continuous groove (50) is present running between the outer edge and the inner edge of said ring and in the ring of the other fixing plate, in its surface facing the one of the fixing plates a ridge (52) is present matching with said groove, and wherein the cable ends follow a continuous trajectory running around and between the plates and through the holes in such way that by drawing the cable ends the cable is tensioned around the bone parts and fixate these.
摘要:
Artificial intervertebral disc, comprising a nucleus of flexible material with the shape of a flattened body, with a lower and an upper side connected by a lateral surface, having a rounded-preferably circular or ellipsoid-shape, around which at least substantially radially oriented windings of a traction-resistant fibre have been applied. The fibres have a tensile strength of at least 1 GPa and a modulus of at least 10 GPa.
摘要:
The invention relates to a laminate composed of two, three, four or more metal sheets. The metal sheets, which may for instance be of an aluminum alloy, are bonded together by means of adhesive layers. In the adhesive layers there are embedded poly-paraphenylene terephthalamide or carbon threads having a high modulus of elasticity. In the unloaded state of the laminate in its entirety there is a compressive stress in the range of 0 to 200 or 300 N/mm.sup.2 in each metal sheet and a tensile stress in each layer with threads. The material according to the invention is in the first place meant for use in the field of aircraft or spacecraft engineering. However, it also may with advantage find application in various other fields of engineering where high demands are made on static, dynamic fatigue properties and damage tolerance.
摘要:
The invention relates to a reinforcing liner comprising load-bearing yarns of a first type characterized in that the liner further comprises load-bearing yarns of a second type having a creep rate {acute over (ε)}2 of at least 10 times higher than the creep rate {acute over (ε)}1 of the yarns of first type, i.e. {acute over (ε)}2≥10×{acute over (ε)}1, wherein the creep rates are measured on the yarns at a temperature of 20° C. and under an applied load of 600 MPa. The invention also relates to a pressure vessel comprising thereof.