An optical fiber draw system and method of coating an optical fiber. The system includes a furnace for heating an optical fiber preform, a draw assembly for drawing the optical fiber at a draw speed greater than 50 meters per second, a first coating applicator for applying a first coating onto the fiber, and a first curing assembly comprising a first plurality of light sources comprising light-emitting diodes for partially curing the first coating. The optical fiber draw system also includes a second coating applicator for applying a second coating onto the fiber on top of the first coating, and a second curing system comprising a second plurality of light sources for curing the second coating, wherein the first coating is further cured in the range of 15-50 percent after leaving the first curing assembly.

An optical fiber draw system and method of coating an optical fiber. The system includes a furnace for heating an optical fiber preform, a draw assembly for drawing the optical fiber at a draw speed greater than 50 meters per second, a first coating applicator for applying a first coating onto the fiber, and a first curing assembly comprising a first plurality of light sources comprising light-emitting diodes for partially curing the first coating. The optical fiber draw system also includes a second coating applicator for applying a second coating onto the fiber on top of the first coating, and a second curing system comprising a second plurality of light sources for curing the second coating, wherein the first coating is further cured in the range of 15-50 percent after leaving the first curing assembly.

A manufacturing method of a metal-coated glass fiber according to the present invention includes: drawing a glass fiber from a bushing nozzle of a glass melting furnace; discharging, from an orifice of a metal melting furnace in which a metal for forming a metal coating layer is melted, a molten metal in a dome shape or substantially spherical shape; and bringing the glass fiber into contact with the molten metal, wherein the metal melting furnace has on a wall surface thereof two orifices to discharge two droplets of the molten metal such that end portions of the two droplets abut or overlap each other to define a recess therebetween, and wherein the metal coating layer is formed on the glass fiber by passing the glass fiber downward through the recess and bringing the glass fiber into contact with both of the two droplets.

A method of producing a glass briquette in which reclaimed glass fines are mixed with a binder material to create a mixture. The mixture is subsequently compressed in a chamber to form a briquette having the shape of the interior of the chamber. The reclaimed glass includes glass fines of a size of smaller than 10 mm. The method is performed without melting the glass fines such that the resulting briquette contains the discrete glass fines held in the binder and may be used as a furnace ingredient for later glass product production. The glass briquette may contain other batch ingredients required in the production of glass.

A method of producing a glass briquette in which reclaimed glass fines are mixed with a binder material to create a mixture. The mixture is subsequently compressed in a chamber to form a briquette having the shape of the interior of the chamber. The reclaimed glass includes glass fines of a size of smaller than 10 mm. The method is performed without melting the glass fines such that the resulting briquette contains the discrete glass fines held in the binder and may be used as a furnace ingredient for later glass product production. The glass briquette may contain other batch ingredients required in the production of glass.

A resin coating device includes: a resin application portion having an insertion hole through which a glass fiber is inserted in an axial direction, and applying a resin onto an outer circumference of the glass fiber in the insertion hole; a ?.sub.x rotation mechanism rotating the resin application portion with a ?.sub.x axis orthogonal to a central axis of the insertion hole as a central axis of rotation; and a ?y rotation mechanism rotating the resin application portion with a ?.sub.y axis orthogonal to both of the central axis of the insertion hole and the ?.sub.x axis as a central axis of rotation, wherein the ?.sub.x rotation mechanism and the ?.sub.y rotation mechanism are configured such that a center point of rotation, which is an intersection of the ?.sub.x axis and the ?.sub.y axis, is located within the insertion hole.

A resin coating device includes: a resin application portion having an insertion hole through which a glass fiber is inserted in an axial direction, and applying a resin onto an outer circumference of the glass fiber in the insertion hole; a ?.sub.x rotation mechanism rotating the resin application portion with a ?.sub.x axis orthogonal to a central axis of the insertion hole as a central axis of rotation; and a ?y rotation mechanism rotating the resin application portion with a ?.sub.y axis orthogonal to both of the central axis of the insertion hole and the ?.sub.x axis as a central axis of rotation, wherein the ?.sub.x rotation mechanism and the ?.sub.y rotation mechanism are configured such that a center point of rotation, which is an intersection of the ?.sub.x axis and the ?.sub.y axis, is located within the insertion hole.

A method for manufacturing an optical fiber coats a first resin on a glass fiber drawn from a glass base material, and cures the first resin to form a first coating. The method includes causing the glass fiber to travel at a first velocity during a first time period, increasing the velocity from the first velocity to a second velocity during a second time period following the first time period, and maintaining the velocity at the second velocity during a third time period following the second time period. A relationship 1.0<TB2/TB1<=11.0 stands, where TB1 denotes a thickness of the first coating in the increasing, from a start of coating the first resin to a time when the velocity reaches a third velocity higher than the first velocity and lower than the second velocity, and TB2 denotes a thickness of the first coating in the maintaining.

A method for manufacturing an optical fiber coats a first resin on a glass fiber drawn from a glass base material, and cures the first resin to form a first coating. The method includes causing the glass fiber to travel at a first velocity during a first time period, increasing the velocity from the first velocity to a second velocity during a second time period following the first time period, and maintaining the velocity at the second velocity during a third time period following the second time period. A relationship 1.0<TB2/TB1<=11.0 stands, where TB1 denotes a thickness of the first coating in the increasing, from a start of coating the first resin to a time when the velocity reaches a third velocity higher than the first velocity and lower than the second velocity, and TB2 denotes a thickness of the first coating in the maintaining.

The present invention relates to a heat conservation-insulating material which is coated with a UV film and has maximized heat efficiency, wherein: the material uses a thermosetting water-soluble acrylic adhesive to ensure the minimum uniform coating film thickness required for corrosion prevention of a pipe and strength reinforcement during curing and allow easy installation with flexibility and sufficient working time before the installation; and a surface of the insulating material is UV-coated and thermosetting-coated by dual-cure curing method so that even a part where light or ultraviolet rays cannot penetrate can be cured, a heat conservation-insulating material having vivid colors can be obtained even when dye and pigment are added to realize various colors, and the cutting processability is excellent to enable a uniform coating on various surfaces, such as metal, plastic, glass, ceramics, stone, wood, and various building materials, or even on sharply bent shapes.