摘要:
The invention concerns a method for preparing a shaped composite, comprising the preparation of a mixture into which there are introduced fragments of mineral wool comprising a sizing composition comprising a sugar, a non-cementitious silica carrier separate from the wool, a non-cementitious alkali carrier separate from the wool, and water, the non-cementitious silica carrier and the non-cementitious alkali carrier forming, with the water, a mineral binder that gradually solidifies around the solid particles contained in the mixture, then the shaping of the mixture into a shaped composite, in particular into briquettes. The invention also concerns a method for producing mineral wool, which involves producing a molten mass that is transformed into mineral wool by means of a drawing device, the shaped composite being introduced as a vitrifiable batch into a melting chamber such as a cupola furnace.
摘要:
In a system for internal insulation of buildings, in particular of slanted roofs with a wooden basic construction including rafters and/or beams and slats or profile strips arranged thereon at a distance attachment devices are used which are configured in two components, namely a base element and an attachment element adjustable relative thereto, wherein the relative positioning of attachment element and base element is fixable.
摘要:
Die Erfindung betrifft ein Vakuumdämmelement (10) aus einer mit einer ersten Umhüllung (18) gasdicht umhüllten inneren Füllkammer (12) und einer zweiten, äußeren gasdichten Umhüllung (28) die eine oder zwei äußere Füllkammern (32) ausbildet. Die innere Füllkammer (12) enthält ein grobporöses oder grob strukturiertes Dämmmaterial (14), Wasserstoffgas und ein mit Gettermaterial gefülltes Heizelement (16) zur Absorption und Desorption von Wasserstoff und weist eine schaltbare Wärmeleitfähigkeit auf.
摘要:
The invention relates to a method for manufacturing pipe shells (24') of bound mineral wool, wherein a web section (17) of a mineral wool web is wound around a winding core (1) and wherein the pipe shell (24) thus formed is set by the action of heat. The winding core (1) has a polygonal cross-section, wherein the pipe shell (24) also obtains a polygonal cross-section during winding. Furthermore, the winding core (1) is driven at inconstant angular speed, wherein the angular speed of the winding core (1) varies as a function of the effective distance of the region of the web section (17) which meets the outer circumferential face from the axis of rotation of the winding core (1), so that the tensile forces acting on the web section (17) during the winding process vary at a lesser degree and are in particular substantially constant. The invention further relates to an appropriate device, a winding core (1) as well as a pipe shell (24'). Thus, there are provided a method and a device for manufacturing such pipe shells (24') with non- circular cross-section by means of which the manufacturing effort is reduced as compared to prior art.
摘要:
This method, which aims to determine the heat loss coefficient K of a room, comprises steps that involve: - applying, in a room, over two successive time periods (D k )k = 1 or 2, a heating power P k to heat the room, carrying out a measurement campaign measuring at least one temperature inside the room T ik at close time intervals, and determining the outside air temperature T ek at close time intervals, in which the heating power P 1 over the first period D 1 is such that the following parameter (I): is less than or equal to 0.8, while the heating power P 2 over the second period D 2 is substantially zero; - for each time period D k , selecting a time interval Δ tk for which the change T ik ( t ) is substantially linear; - determining, over each time interval Δ t 1 or Δ t 2 , the slope a 1 or a 2 of the tangent to the curve T ik ( t ); - deducing the value K calc of the heat loss coefficient K of the room from slopes a 1 and a 2 .
摘要:
In a system for internal insulation of buildings, in particular of slanted roofs with a wooden basic construction including rafters and/or beams and slats or profile strips arranged thereon at a distance attachment devices are used which are configured in two components, namely a base element and an attachment element adjustable relative thereto, wherein the relative positioning of attachment element and base element is fixable.