摘要:
A bushing system may include a bushing that is configured to receive a molten material. The bushing may include a plate defining a first plurality of apertures through which the molten material flows. The plate may include a longitudinal axis, as well as a first side wall and a second side wall disposed on a side of the plate opposite the first side wall. The first side wall and the second side wall may extend at an upward angle from the plate. The plate may also include a plurality of ribs extending along at least a portion of the plate. The bushing system may also include a tip plate coupleable with the bushing. The tip plate may be configured to receive the molten material from the bushing and may define a second plurality of apertures through which the molten material flows to form fibers.
摘要:
A bushing for fiberizing molten material, such as molten glass, having a screen mounted in the bushing spaced above the tip or orifice plate with a central portion of the screen having a significantly lower percent of hole area than the percent of hole area in end portions of the screen. This bushing improves fiberizing efficiency in channel positions of a fiberizing operation. Also, such a screen can be laid on top of a conventional screen to convert a normal bushing to a channel position bushing. Methods of using these types of bushings to improve fiberization in the channel positions and for modifying conventional bushings for other uses are also disclosed.
摘要:
A screen comprises an electrically conductive elongate inner screen plate. The inner screen plate has at least one elongate fold therein and at least two elongate divergent surfaces on opposing sides of the fold. Each divergent surface has an upper end and opposing edges tapering downward from the upper end. The upper ends of the divergent surfaces diverge from one another. Each of the divergent surfaces has a plurality of holes therein. The screen further comprises at least two electrically conductive outer screen plates. The outer screen plates are attached to the edges of the divergent surfaces and extend between the divergent surfaces. Each of the outer screen plates has a plurality of holes therein. Another embodiment of the invention is directed toward a glass fiber bushing system comprising a bushing body and a screen within the bushing body. The bushing body has opposing end plates. The screen comprises opposing ends. Each of the ends has an upper portion and a lower portion. The upper portion of each of the ends is attached to one of the end plates. The lower portion of each of the ends is spaced apart from the end plates.
摘要:
A bushing for drawing glass fibers and its use. The bushing is made of at least two different metallic materials from the group comprising platinum, platinum-iridium alloy, platinum-ruthenium alloy, and platinum-rhodium alloy, such that null;(a) the sidewalls are made of platinum or platinum-iridium alloy or platinum-ruthenium alloy or platinum-rhodium alloy, (b) the tip(s) are made of platinum or platinum-rhodium alloy, (c) the power supply terminals are made of platinum or platinum-rhodium alloy, and (d) the tip plate is made of platinum-iridium alloy or platinum-ruthenium alloy or platinum-rhodium alloy. If the sidewalls and the tip plate are made of platinum-iridium or platinum-ruthenium alloy, they have a coating of platinum or platinum-rhodium alloy at least on their exterior surface.
摘要:
A bushing assembly/support structure arrangement is provided. The arrangement comprises a bushing assembly and a support structure. The bushing arrangement includes a bushing main body comprising at least first and second side walls and a tip plate extending between the side walls. The tip plate contains a plurality of orifices through which molten mineral material flows prior to being attenuated into fibers. The bushing assembly further comprises a first support rail coupled to the main body first side wall, and at least one first bracket having an intermediate member coupled to the main body first side wall. The support structure comprises a bushing frame, and at least one first support strap. The support strap has a first end fixedly coupled to the bushing frame and second end extending toward a first location on the support rail adjacent the first bracket for supporting the bushing assembly.
摘要:
Provided is a glass fiber prepared by combining two glasses, preferably at least one of which is biosoluble, in a core/sheath arrangement. Such an arrangement can provide fibers potentially stronger than those of single glasses, while also having a permanent twist or curl to impart improved loft and recovery to blankets or mats comprised of them. Preferably, the core is offset from the center of the fiber. In one embodiment, the glass fibers of the present invention comprise a core and a sheath, where the core glass of the structure contracts as it cools to a greater extent than the sheath glass of the structure. Benefits are achieved in this manner, preferably with regard to biosoluble fibers.
摘要:
A system for melting and delivering glass to a work area such as spinners for making fiberglass includes a melter with heaters so arranged that the nullhot spotnull in the molten glass is located away from the walls and corrosion sensitive parts so that the various elements of the melter wear out at substantially the same time. The system is further provided with a dual exhaust arrangement when the melter, conditioner and forehearth are located on the same floor of the plant, the first exhaust being at the juncture of the melter and conditioner, and the second being an alternating replacement for one of the heating/cooling orifices and mechanisms in the conditioner, so as to effectively limit the amount of corrosive volatiles reaching the forehearth.
摘要:
An insulating flow block having a plurality of bores extending therethrough to permit the flow of molten fiberizable material through the block, a bushing assembly having a bushing block with one or more bores extending through a peripheral region thereof to divert a portion of a supply of molten fiberizable material from a central region of the bushing block to the peripheral region of the bushing block, and a bushing positioned in general registry with the bore of the peripheral region of the bushing block to facilitate the flow of molten fiberizable material to a peripheral region of the bushing is disclosed.
摘要:
A bushing including a tip plate having an orifice region including orifices to permit flow of a molten fiberizable material therethrough; a reservoir for supplying molten fiberizable material to the orifices; and a substantially planar perforated plate positioned within the reservoir generally parallel to and substantially coextensive with the orifice region of the tip plate, the perforated plate including a central region and a peripheral region surrounding the central region, each of the central region and the peripheral region of the perforated plate having a plurality of openings to permit flow of molten fiberizable material therethrough, wherein average head loss of molten material flowing through the central region of the perforated plate is greater than average head loss of molten material flowing through the peripheral region of the perforated plate.
摘要:
Bushings and bushing assemblies for supplying molten vitreous material in the form of exudations to be attenuated into filaments include a heat resistant cushioning material is provided under at least a portion of the flange portion of the bushing to thereby accommodate any thermal expansion of the bushing with respect to the insulation castable refractory material used to cement the bushing in place. The end walls of the bushing are contoured to thereby uniformly distribute the operating stresses occurring in the area of the junction of the flange and the side walls and the end walls of the bushing when the bushing is heated.