摘要:
A ventilation duct includes an envelope lined on the inside by insulation panels. The panels have a lining on the side of the flow channel of the duct and on at least one part of at least one of transverse edges of the duct. This lining extends over at least one part of each of both sides of the edge and is integrated with the panel. Z shaped sections may be used to hold adjacent panels.
摘要:
A mineral wool article including a mineral wool layer, at least a region of which extends from at least one surface of the mineral wool layer into the mineral wool layer to an impregnation depth t. The region of the mineral wool layer includes individual fibers and is impregnated with an impregnating substance which adheres to the fibers and encloses the fibers without sealing gaps defined between the fibers so as to permit the surface of the mineral wool layer to retain an open surface structure. The gaps between the fibers in the region include bridge formations of the impregnating substance, which bridge formations are configured to permit air to penetrate through the mineral wool layer without essentially being impeded and to trap solid particles and thereby prevent emergence of the particles from the surface of the mineral wool layer. The impregnating substance provides the article with a soft and warm touch.
摘要:
An apparatus for defibrating optically dense glass melts, such as a glass melt from basalt by the jet process, is proposed which is equipped with a feeding mechanism (1) for the melt and defibrating aggregates (2), the feeding mechanism (1) having a feed channel (3) and a subsequent distributing channel (4) with outlet ports (5) to the defibrating aggregates (2). To homogenize the glass temperature in the area before the defibrating aggregates (2) the feed channel (3) has on the bottom side at least in the area adjacent the distributing channel (4) a warming device (8) serving as a thermal barrier or active insulation and advantageously formed as an electric resistance heating device.
摘要:
A wall structure for interior sound and thermal insulation of rooms. The wall structure comprises at least one insulating member (26a, 26b, 26c) and fastening profiles (10, 28) consisting of metal. These are intended partly for the mutual affixing of members laterally, partly for affixing of each member to floor and ceiling. Especially, each member comprises a soft insulating sheet and a thereto fastened, rigid support sheet. The fastening profiles intended for affixing of the member to floor and ceiling are of L-type and the fastening profiles (28) intended for mutual affixing of members are of T-type. One portion of each L-profile is intended for installation to floor and ceiling respectively and the other for installation in an area between the insulating sheet of the member and its support sheet. The support sheet is intended to face the interior of a room, the two portions of each T-profile projecting on both sides of the main part of the T-profile (28) being intended for positioning in the corresponding areas between insulating sheets and support sheets of members (26b, 26c) intended for mutual affixing.
摘要:
A bituminous mixture, comprising from 0.5 to 20% by weight mineral wool in admixture with bitumen, the fibers of said mineral wool prior to any chemical or mechanical treatment, being equal to at most 7 per 5 grams, and said fibers being treated with a non-ionic finish.
摘要:
For obtaining mineral fibers from a thermoplastic material having a high melting point, and more precisely for the regulation of the flow rate and temperature of the stream of molten material distributed on the fiber-drawing machine, the molten material is conveyed via a reservoir where the flow rate is regulated and the height of the molten material at the base of the tapping aperture is controlled by inclining the reservoir. Preferably the molten material is subject to a basic heating process which raises its temperature close to the fiber-drawing temperature and, in the vicinity of the tapping aperture, it is subject to additional heating in order to adjust the temperature precisely.
摘要:
The invention relates to the reception of fibers under fibering machines to obtain a mat of mineral wool. It proposes assigning to each fibering machine its own collecting zone, the surfaces of the collecting zones increasing in the direction of the increase of base weight. The invention also proposes a device characterized by the presence of two reception drums for three fibering machines.
摘要:
A bituminous mixture, comprising from 0.5 to 20% by weight mineral wool in admixture with bitumen, the fibers of said mineral wool prior to any chemical or mechanical treatment, being equal to at most 7 per 5 grams, and said fibers being treated with a non-ionic finish.
摘要:
For measuring the flow rate of a thin stream of molten materials such as that of glass, the diameter of the thin stream is measured, as is the velocity. The velocity is measured on the basis of the measurement of the time separating the successive appearance of an emission sequence emitted at first and second points on the path of the molten material. A correlation is then established between the sequences and the time interval corresponding to the passage of the same irregularities at the two selected points identified by this correlation.
摘要:
Fibres, particularly glass or rock wool fibres coated with a modified polyvinyl alcohol-based polymer and suitable for use as a base material to produce a surface coating on a backing by a simultaneous spraying of the coated fibres mixed with water and a cross-linking agent. A method of producing the fibres to make them suitable to be sprayed in the manner described is also provided.