Manufacturing method of double-veneer flooring
A production method and veneer technology, which is applied in the field of plate processing, can solve problems such as flammability, threats to human health, and inability to buffer pressure, and achieve the effects of improving fire resistance, protecting bacterial infestation, and reducing noise
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[0008] Before the production of double veneers, we used the cold pressing process of latex white glue. Due to the poor moisture resistance, we could not meet the standard of the first-class board. Now the process is adjusted as follows:
[0009] Double veneer hot pressing process: board core→single-sided middle board→pre-pressing→sand core board→pasting middle board→pre-pressing→opening repair→hot pressing→sanding (1, 2)→sanding (1, 2) 2) → Paste the fireproof board → Pre-press → Hot press → Edge.
[0010] Double veneer glue mixing process: 50kg latex glue, 50kg urea-formaldehyde glue, 25-30kg flour, 2kg ammonium chloride, melamine.
[0011] Take a certain mass ratio of milky white glue and urea-formaldehyde glue, add it to the glue mixing tank and stir for 5-10 minutes; then add a certain mass ratio of flour, ammonium chloride, and melamine, stir for 10-30 minutes, and then it can be used.
[0012] Hot pressing temperature T=85~95℃; gauge pressure p=4MPa; time t=180s.
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