A semi-dry airflow forming process for fiberboard

Abstract

The invention discloses a semi-dry airflow forming preparation process of fiberboard, which belongs to the field of fiberboard preparation technology. A plurality of guide rods are set up on the mold, and the guide rods are movably sleeved with air-guiding overflow rubber balls, which are interrupted to both ends of the mold. On the one hand, the introduced air flow is conducive to the preliminary dispersal of the agglomerated fibers; The agglomeration member breaks up the agglomerated fibers mechanically during the movement, further improving the fiber carding effect, and intermittently applies a magnetic field under the mold to make the magnetic deagglomeration member reciprocate up and down, which not only effectively adjusts the breaking depth, but also realizes Under pressure, with the overflow of the rubber material and airflow, the rubber material is evenly attached to the fiber filaments, which improves the adhesive molding effect, and the air bubbles formed at the air guide overflow rubber ball are easy to blow away the small agglomerates.

Description

technical field [0001] The invention relates to the field of fiberboard preparation technology, more specifically, relates to a semi-dry airflow forming preparation technology of fiberboard. Background technique [0002] Fiberboard is a wood-based panel made of wood fiber or other plant fiber, applied with urea-formaldehyde resin or other suitable adhesives. The production process of fiberboard is divided into three types: wet method, dry method and semi-dry method. The wet production process uses water as the carrier of fiber transportation. Its mechanism is to make use of the friction force generated by the interweaving of fibers, the bonding force generated between the surface molecules of the fibers and the cementing force generated by the fiber content to make a certain strength. fiberboard. The dry production process uses air as the fiber transport carrier. The fiber preparation is a one-time separation method. Generally, no fine grinding is required, and adhesives n...

AI Technical Summary

Problems solved by technology

[0003] However, in the production of semi-dry fiberboard, because the fiber has not been dried, the moisture content of the fiber is high, and it is difficult to control to a uniform constant value. The fiber is easy to agglomerate during molding and preparation. If the agglomerated fiber is not broken up, it will cause product damage. Uniformity is difficult to guarantee

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