摘要:
A method, a device and a computer program for manufacturing a pre-insulated skeleton framing segment for a building to be constructed, wherein an assembly with a hollow space is provided, to which a data carrier is fitted including data from which a quantity of raw materials required for forming a foam insulation layer of a thickness in the hollow space can be determined, which quantity is calculated, and which raw materials are inserted in the hollow space, and foam and harden there during a period.
摘要:
A method, a device and a computer program for manufacturing a pre-insulated skeleton framing segment for a building to be constructed, wherein an assembly with a hollow space is provided, to which a data carrier is fitted including data from which a quantity of raw materials required for forming a foam insulation layer of a thickness in the hollow space can be determined, which quantity is calculated, and which raw materials are inserted in the hollow space, and foam and harden there during a period.
摘要:
A method for making a low density foamed article includes placing a desired amount of thermoplastic polyurethane foam beads in a cavity of an injection mold and closing the mold; combining in an extruder connected to the mold a molten polymer selected from the group consisting of thermoplastic polyurethane elastomers and thermoplastic ethylene-vinyl acetate copolymers with both a physical or chemical blowing agent other than a supercritical fluid present in an amount up to about 15 wt % based on molten polymer weight and a supercritical fluid that is at least one of about 0.1 to about 5 weight percent of supercritical CO2 based on molten polymer weight or about 0.1 to about 4 weight percent of supercritical N2 based on molten polymer weight, to form a mixture and injecting the mixture into the mold and foaming the mixture to form the low density foamed article.
摘要:
A method of manufacturing a filling for a seat consists in spraying a first polyurethane foam compound into a central part of a base of a mould, leaving the first foam compound to expand naturally so as to form a skin in contact with the air, injecting a second foam compound directly in contact with the skin and closing the mould, then allowing the second foam compound to expand, the first and second foam compounds being flexible foams.
摘要:
In order to provide an open-celled rigid polyurethane foam, which realizes a low material cost per unit volume of the foam and excellent surface smoothness because of its unique structure, and a thermal insulation material comprising the foam, an open-celled rigid polyurethane foam which has an open cell content of not less than 99% in a state that a skin layer is left on the foam is produced by foam molding, preferably multiple-stage compression molding, of foaming components containing a polyol component and an isocyanate component with an equivalent ratio of NCO/OH of about 0.55-0.95, and a blowing agent, preferably water, and a thermal insulation material is produced from the foam preferably subjected to a baking treatment by means of far-infrared ray exposure. Further, in order to provide a vacuum insulation material that does not result waste upon production, and provide good appearance and high reliability when used for products such as freezing and refrigerating apparatuses by using the aforementioned open-celled rigid polyurethane foam, a vacuum insulation material is produced by covering the foam as a whole with a container composed of a gas barrier film, reducing internal pressure of the container, and sealing the container to provide the vacuum insulation material.
摘要:
The invention relates to: composite elements comprising a thermoplastic material and a polyurethane adhering to said thermoplastic material; a method for producing same; and the use thereof.
摘要:
A process for insulating a register box in which the register box has a plurality of side panels arranged in a generally rectangular configuration and a duct opening through a wall that extends across the generally rectangular configuration, in which the process includes flowing an expandable polymeric material toward the plurality of side panels, placing the register box into or onto a support structure, introducing a liner over the flowed expandable polymeric material within the register box, and placing a form onto the liner in the register box so as to shape the expandable polymeric material within the register box. The form and the liner are then removed from the register box.
摘要:
The present invention relates to a method for manufacturing a fabric-integrated cross-linked foamed product, comprising the steps: preparing a mold having a cavity; filling the cavity of the mold with a molding material in an amount greater than the volume of the cavity of the mold; pressurizing and heating the mold; releasing pressure before the molding material of the mold begins to be cross-linked after having reached the softening point by the applied heat, and opening the mold; completely removing the molding material other than the molding material charged in the cavity of the mold, of the molten molding material in the opened mold; placing fabric on the upper surface of the mold the cavity of which is filled with the molding material; pressurizing and heating the mold to cross-link the molding material in contact with the fabric; and releasing pressure and rapidly opening the mold to foam the cross-linked molding material in contact with the fabric.
摘要:
The present invention relates to a process for constructing a composite molding in which a support, a decorative part, and a foam coating are present, which comprises the following steps: 1. providing a mold with a sealable mold cavity, 2. providing a shaping support made from a material A, where A encompasses wood, metal, alloys, and thermoplastics, 3. providing a separable decorative part made from a material B, encompassing leather, textile, film or foil, paper, microfiber, or a combination of two or more of the materials mentioned, where the material has a frontal side which extends over a surface of the mold cavity, and an unencumbered reverse side, 4. placing the support into the mold, 5. spraying a coating made from foam-formers over the reverse side of the support, while the decorative part is in the mold cavity, 6. completing the reaction of the foam-formers, 7. closing the mold cavity and bringing the support sprayed with foam-formers into contact with the decorative part, and finally 8. demolding the composite molding.
摘要:
In foam molding for molding a foam-molded article from a foaming material, heat is applied while controlling the amount of foaming of the foaming material, control of the amount of foaming of the foaming material is halted, heating of the foaming material is removed and the foaming material is molded into a desired shape. The foaming material can be molded into a prescribed shape and at high speed even if the molded article is a complicated one.