Provided in the present invention is a PVC plastic-wood ventilation window, wherein a transmission mechanism for driving a plurality of slats to rotate synchronously is provided inside one vertical frame, the plurality of slats are rotatably connected and assembled between two vertical frames, and a horizontal frame is assembled and connected at each of the top and bottom of the two vertical frames. Compared with the prior art, in the present invention, when the included angle between an inclined surface and a vertical surface is 18.43°, the component of force in the horizontal direction is weakened, and the force received by the slats that attempts to rotate the slats is smaller. Therefore, the included angle being designed to be 18.43° allows the slat to be less likely to rotate, thereby reducing the push-open rate. When the slats are driven by an external force to rotate, the direction of the force is exactly opposite, and in this case, a labor-saving pulley system formed by a large pulley, a small pulley and a fixed pulley is converted into a laborious pulley system, such that the slats are less likely to be pushed open, thereby reducing the probability of the slats being pushed open, reducing the push-open rate of the slats, and further reducing the push-open rate.
A process of polyvinyl chloride (PVC) cladding wood includes step 1, putting a PVC mixture into a high-speed mixer, and then cooling through a rubber powder cooler to obtain a powder; step 2, adding the powder to a granulator for granulation to produce PVC particles with uniform particle size; step 3, heating a profile to be cladded at an average speed in an extruder, melting with the PVC particles, and extruding out by a co-extrusion die to form a profile with PVC material coating on a surface of the profile; step 4, after cooling by a cooling tank, forming and tracting, cutting; the process of PVC cladding wood is completed. The process of PVC cladding wood involved in the present invention attaches the PVC coating to the outer surface of a pure wood or a wood-like profile.
B29C 48/154 - Coating solid articles, i.e. non-hollow articles
B29B 9/08 - Making granules by agglomerating smaller particles
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
B29C 48/12 - Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
B29C 48/79 - Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling of preformed parts or layers
B32B 21/08 - Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resinLayered products essentially comprising wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, next to another layer of a specific substance of fibre-reinforced resin
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
(1) Balustrades; building materials, namely, cellular PVC trim; cement partitions for buildings; door jambs, not of metal; fences, not of metal; folding doors, not of metal; non-metal door panel; outdoor blinds, not of metal and not of textile; pre-fabricated houses not of metal; prefabricated houses [kits], not of metal; shutters, not of metal; thermoplastic fence; windows, not of metal
balustrades, not of metal; folding doors, not of metal; windows, not of metal; outdoor blinds, not of metal and not of textile; shutters, not of metal; palings, not of metal; Prefabricated non-metal buildings; Door panels, not of metal; Door jambs not of metal; Building materials of plastics material; Non-metal partitions for building.
