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Production Process Of Sealing Top Of Doors And Windows
Feb 17, 2018


The manufacture of sealing tops is divided into three processes, including velvet, plastic extrusion fusion, ultrasonic welding plastic. The raw materials of sealing tops are composed of BCF polypropylene expanded silicon filament, polypropylene warp and weft, polypropylene resin, polypropylene plastic sheet or non-woven fabric.

Process: warping, digging, weaving velvet belt, plastic, slitting, solder, finished products. Equipment configuration generally by: warping machine, high-speed velvet belt machine, extrusion joint machine, ultrasonic welding machine. The traditional seal tops are made of two parts, which are woven by velvet and plastic extrusion. The high performance sealing tops are formed on this basis through the ultrasonic welding molding. Why: Seal top of the manufacture of the introduction of ultrasonic technology, it laid the foundation of its high sealing performance? This should be analyzed from both manufacturing and use. The formation of sealed tops, in addition to the plastic film to play a fixed role, the sealing effect of the fluff is essentially a plush woven fabric, this fluff and weft form a V-shaped weave structure, along the warp to each of the V-shaped hairs have a certain gap, this gap is reflected in the push-pull window is along the upper part of the fan and the side, can not prevent the infiltration of rainwater. When the plastic film is welded, top of the latitude is to be shielded, it is this shielding in the use of plastic windows, air, water can not be more and more, the addition of the vertical effect of the pile after the increase in the upper and the lower part of the box formed a closer combination, thereby multiplying the sealing performance. To sum up, the addition of the piece to overcome the lack of gaps in the fabric of the machine, and only the ultrasound-free technology to make it complement each other, the use of high acoustic wave is the essence of the same material for molecular fusion welding, so as to overcome the traditional soldering iron heating method of aging adhesive phenomenon.