Method for processing lumber-core board

Abstract

The present invention relates to a production process of veneered strip-glued board. Said process includes the following steps: sawing raw material to obtain squared timber, drying, defining thickness and processing double faces, making strips by using multiblade saw, making board, coating adhesive, matching board, forced cooling, first sanding, sticking transverse single board, prepressing, hot-pressing, forced cooling, secondary sanding, sticking surface board, secondary prepressing, secondary hot-pressing, cutting edge, third sanding, sorting finished products and putting the finished products into storage. The urea-formaldehyde adhesive formula used in the adhesive-coating process is formed from (by weight portion) 100 portions of low-formaldehyde urea-formaldehyde resin, 20-35 portions of filling agent, 5-10 portions of formaldehyde trapping agent and 0.4-1.0 portion of solidifying agent.

Description

technical field

[0001] The invention relates to blockboards, in particular to a processing technology for blockboards. Background technique

[0002] In the existing blockboard processing technology, there are "one pressure and two sand" technology and "two pressure and two sand" technology. The "one press and two sand" process needs to go through the following process. This process mainly includes: log drying, core strips, panel machine gluing, stacking, sanding, planing, blank assembly and board (horizontal veneer, Table board), pre-heating, pre-heating, edge trimming, sanding, inspection and packaging process. The "two-press and two-sand" process needs to go through the following process, which mainly includes: log drying, core making, panel machine gluing, pre-pressing, hot pressing, trimming, sanding, gluing, assembly Blank matching, pre-heating, hot pressing, trimming, sanding, inspection and packaging process. The defects in the above two blockboard processing techn...