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公开(公告)号：DE2712413A1
公开(公告)日：1978-09-28
申请号：DE2712413
申请日：1977-03-22
Applicant: BASF AG
Inventor： HOLL NORBERT DIPL ING
Abstract: Machine for mfr. of polystyrene foam webs has continuously moving perforated conveyer belts with sidewalls defining a channel; heating and cooling chambers along the sidewalls; and an installation for the small-particle polymer to be charged to the channel. The conveyer belts, longitudinal supports and associated chambers form units of which the upper one is positively and lockingly connected with gantries whilst the lower unit can be vertically adjusted within the gantries. Rapid adjustment of thickness of foam web to be mfd. is possible. Such adjustment can be made, by remote control is desired, by one operator.
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Patent Agency Ranking
公开(公告)号：DE3144370A1
公开(公告)日：1982-07-01
申请号：DE3144370
申请日：1981-11-07
Applicant: BASF AG
Inventor： HOHWILLER FRIEDER ING GRAD , HOLL NORBERT DIPL ING , WEBER DIETER
Abstract: The invention relates to a process for foam-filling the cavities of hollow blocks with polystyrene foam. Prefoamed polystyrene foam particles are introduced into the cavities of the hollow blocks, where they are sintered together, both the introduction of the foam particles into the cavities and the sintering being carried out with the aid of steam.
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公开(公告)号：DE2557692A1
公开(公告)日：1977-06-30
申请号：DE2557692
申请日：1975-12-20
Applicant: BASF AG
Inventor： HOLL NORBERT DIPL ING
Abstract: Gas-press. regulating device, used partic. in mfr. of polystyrene mouldings in double-walled moulds includes a pneumatic feed increaser (sic) with 2-membranes which are arranged inside the feed increaser and controlled via a duct and a spring loaded double cone. The membranes are connected by an element provided with holes. An axially mobile plunger acts upon the element and carries, at its end nearest the mould, >=1 devices associated with the perforated inner wall of or outer wall of the mould. A line connects the mould with the feed increaser. Continuous monitoring of the foaming press. is possible during the cooling of the moulding until it is ejected from the mould. Direct heat transfer from the hot mould wall to the plastics foam is minimised. This reduces risk of surface flaws and gives prods. with uniform apparent density.
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公开(公告)号：DE3304329A1
公开(公告)日：1983-08-11
申请号：DE3304329
申请日：1983-02-09
Applicant: BASF AG
Inventor： HOLL NORBERT DIPL ING
Abstract: The invention relates to a process for producing cuboidal foam blocks by foaming and sintering of prefoamed, spherical expanded polystyrene particles in perforated metal moulds with the aid of dry saturated steam. In a first stage steam is blown into the mould successively onto two or four lateral surfaces in order to displace the air from the mould. In a second stage a steam pressure, which is adequate to produce the sintering of the particles, is subsequently built up in the mould.
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公开(公告)号：DE3200197A1
公开(公告)日：1983-07-14
申请号：DE3200197
申请日：1982-01-07
Applicant: BASF AG
Inventor： HOLL NORBERT DIPL ING , HOHWILLER FRIEDER DIPL ING
Abstract: The apparatus essentially consists of a filling station which has a storage container, on the bottom of which are arranged filling nozzles, the number and arrangement of which correspond to the cavities in the hollow blocks to be filled, and also of a sintering station. The sintering station contains a steam chamber formed from two diametrically opposite chamber sections and having steam supply lines together with shut-off members connected to said steam chamber. At least one of the chamber sections is vertically adjustable. To avoid stresses of thermal origin in the hollow blocks, the hollow blocks are foam-filled in a closed housing consisting of the chamber sections and lateral wall elements.
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