Title:
LFT-D IN-MOLD FILM COATING PROCESS FOR BUILDING FORMWORK
Document Type and Number:
WIPO Patent Application WO/2021/237376
Kind Code:
A1
Abstract:
The present invention relates to the technical field of building formwork manufacturing, and specifically discloses an LFT-D in-mold film coating process for a building formwork. The process comprises: using polypropylene and glass fibers as raw materials, and adding same to an extrusion device so as to extrude a mixed material; introducing a mirror sheet into an oven for heating and softening; installing a mold in a frame-type pressing machine, feeding the mixed material in a mold cavity, and then covering the softened mirror sheet above the mixed material in the mold cavity; and driving the mold to be closed by means of the frame-type pressing machine, and performing compression molding. The present invention has simple steps of film coating process and good molding effects. A mirror-covered building framework is formed by using polypropylene and glass fibers as raw materials, extruding the mixed material by means of an LFT-D process, and then the mirror material, after softened, entering the pressing machine together with the mixed material, and performing compression molding. The mirror-coated building framework has the advantages of being wear-resistant, prolonging the service life and being easy to demold, improves the construction efficiency, and reduces the construction cost.
Inventors:
CHEN DINGYAO (CN)
SHI ZHIWEI (CN)
SHI ZHIWEI (CN)
Application Number:
PCT/CN2020/091943
Publication Date:
December 02, 2021
Filing Date:
May 23, 2020
Export Citation:
Assignee:
JIANGSU XINXIANG MECH & ELECTRICAL CO LTD (CN)
International Classes:
B32B17/10; B29C48/92; B32B27/04; B32B27/32; B32B33/00; B32B37/10; B32B38/00
Domestic Patent References:
| WO2013117743A1 | 2013-08-15 |
Foreign References:
| CN111038032A | 2020-04-21 | |||
| CN211729885U | 2020-10-23 |
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