摘要:
A cable-stranding apparatus includes a stationary guide, a motor, a driven guide, and a controller electrically coupled to the motor. The stationary guide is configured to guide strand elements in a spaced-apart configuration and to pass a core member. The motor is operatively associated with a guide driver. The driven guide is disposed at least partially within the guide driver so as to rotate therewith. The driven guide is configured to receive the strand elements from the stationary guide, individually guide the strand elements received from the stationary guide, and to further pass the core member. The controller is electrically coupled to the motor and configured to control the rotational speed and direction of the motor.
摘要:
The present invention is directed to a method of treating a reinforcement cord, comprising the steps of A) atomizing a mixture of at least one polymerizable monomer, a halogenated saturated hydrocarbon, and a carrier gas to form an atomized mixture; B) generating an atmospheric pressure plasma from the atomized mixture; and C) exposing the reinforcement cord to the atmospheric pressure plasma under conditions suitable to form a polymer strongly bonded to the tire cord and capable of bonding to rubber.
摘要:
A process for producing a support belt for an elevator system includes steps of: placing at least one cable-shaped tension support in position; embedding the tension support in a first belt layer made from a first plasticizable material to produce a partial belt having a first outer surface and a surface which forms a connecting plane, wherein parts of the tension support project out of the connecting plane and at least parts of the projecting portion of the tension support are covered by the first plasticizable material; and integrally forming a second belt layer made from a second plasticizable material on the connecting surface of the partial belt and the projecting portions of the tension support so as to produce a support belt having the first outer surface on the side of the first belt layer and a second outer surface on the side of the second belt layer.
摘要:
Organofunctional silanes are applied to metal surfaces using an oil bath. Metal is immersed in an oil bath containing approximately 2% silane and an oil dispersible hygroscopic liquid, such as glycerol. In one embodiment, the metal is a tire cord. Water vapor entrained in a carrier gas can also be bubbled into the oil silane bath.
摘要:
In the stranding machine 22, a rotating force about a wire material drawing direction (X-direction) is applied to a plurality of wire materials 18A to 18C drawn from bobbins 14A to 14C by rotation of a rotating body 30 arranged on a position apart from the bobbins 14A to 14C in the wire material drawing direction (X-direction), so that a stranded wire is formed. Therefore, the plurality of wire materials 18A to 18C does not rotate in the bobbins 14A to 14C at a stranded point 26 of the plurality of wire materials 18A to 18C. As a result, when the plurality of wire materials 18A to 18C is coated with unvulcanized rubber 88 in the rubber coating section 28, the plurality of wire materials 18A to 18C does not cross the inside of the unvulcanized rubber. For this reason, the unvulcanized rubber 88 sufficiently fills spaces between the plurality of wire materials 88, and sufficiently adheres to the surface of each of the wire materials 18A to 18C.
摘要:
Disclosed are high strength wellbore electric cables, which are formed from a plurality of strength members. The strength members are formed from several stranded filament wires which may be encased within a jacket of polymeric material. The strength members may be used as a central strength member, or even layered around a central axially positioned component or strength member, to form a layer of strength members. Cables of the invention may be of any practical design, including monocables, coaxial cables, quadcables, heptacables, slickline cables, multi-line cables, etc., and have improved resistant to corrosion, torque balancing, and gas migration from a wellbore to the surface.
摘要:
Disclosed are high strength wellbore electric cables, which are formed from a plurality of strength members. The strength members are formed from several stranded filament wires which may be encased within a jacket of polymeric material. The strength members may be used as a central strength member, or even layered around a central axially positioned component or strength member, to form a layer of strength members. Cables of the invention may be of any practical design, including monocables, coaxial cables, quadcables, heptacables, slickline cables, multi-line cables, etc., and have improved resistant to corrosion, torque balancing, and gas migration from a wellbore to the surface.
摘要:
An elevator load bearing assembly (40) includes a plurality of synthetic or polymer cords (42) within a urethane jacket (44). The cords are prestretched and the jacket prevents the stretched cords from relaxing. The inventive arrangement provides a load bearing assembly (40) that has little or no elastic or construction stretch.
摘要:
To improve a tensile strength without impairing flexibility and adhesion strength to concrete, and to form thick coating in a surface layer part for preventing a basis material from being exposed by a damage of the coating, a method of forming double coatings on a prestressing strand includes a primary painting process after a pre-treatment process, in which a resin coating is formed only in the surface layer, a secondary painting process in which respectively individual state resin coating is formed on outer peripheral face of each of the core wire and the surrounding wires under a loosened and separated state, thereby forming a double coating in each surrounding wire, and a finishing process of tightening and retwisting the surrounding wires about the core wire to an original state. The obtained prestressing strand has the double coating portions only in the surface layer thereof and enough flexibility and adhesion strength to concrete.
摘要:
An elevator load bearing assembly includes a plurality of cords within a jacket. The cords are spaced from an exterior surface on the jacket such that the spacing remains generally constant along the length of the belt. The jacket has a smooth, uninterrupted exterior surface for contacting sheaves as the belt moves in the elevator system. A method of making the inventive belt assembly is disclosed. The inventive belt assembly minimizes the possibility for generating an annoying, audible sound and vibration during elevator operation.