Shaving board making process
A particleboard and wood technology, applied in the field of particleboard manufacturing, can solve the problems of high sizing amount and increased production cost, and achieve the effects of reducing formaldehyde emission, extending the industrial chain and reducing costs
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Embodiment 1
[0021] The method for manufacturing particle board of the present invention, comprises the steps:
[0022] (1) Manufacture of wood scraps from Castanopsis coronis small-diameter wood;
[0023] (2) 0.3m of wood scraps obtained in step (1) 3 1m 3 In a pot with industrial water, heat to 60°C and cook for 120 minutes, so that the quality of the extracted wood extract accounts for 3-4.5% of the total wood scrap;
[0024] (3) drying and sorting the wood scraps processed in step (2);
[0025] (4) Mix urea-formaldehyde resin adhesive to the sorted wood scraps, and the sizing amount is 7%;
[0026] (5) slab paving, pre-pressing, and hot-pressing forming to obtain the particleboard of the present invention.
[0027] After determination, the formaldehyde release amount in the particleboard of the present invention is only 7.9mg / 100g, and the strength reaches or exceeds the requirements of the national standard GB / T 4897-2003 (the physical and mechanical performance index of the parti...
Embodiment 2
[0029] The method for manufacturing particle board of the present invention, comprises the steps:
[0030] (1) use the Eucalyptus eucalyptus wood as raw material to manufacture wood scraps;
[0031] (2) 0.7m of the wood scraps obtained in step (1) 3 1m 3 In a pot with industrial water, heat to 100°C and cook for 20 minutes, so that the quality of the extracted wood extract accounts for 3-4.5% of the total wood scrap;
[0032] (3) drying and sorting the wood scraps processed in step (2);
[0033] (4) Mix urea-formaldehyde resin adhesive to the sorted wood scraps, and the sizing amount is 6%;
[0034] (5) slab paving, pre-pressing, and hot-pressing forming to obtain the particleboard of the present invention.
[0035] After measurement, the amount of formaldehyde released in the particleboard of the present invention is only 7.2mg / 100g, and the strength reaches or exceeds the requirements of the national standard GB / T 4897-2003 (physical and mechanical performance indicators...
Embodiment 3
[0037] The method for manufacturing particle board of the present invention, comprises the steps:
[0038] (1) Using masson pine small-diameter wood as raw material to produce wood scraps;
[0039] (2) 0.1m of the wood scraps obtained in step (1) 3 1m 3 In a pot with industrial water, heat to 80°C and cook for 70 minutes to realize that the quality of the extracted wood extract accounts for 3-4.5% of the total wood scrap;
[0040] (3) drying and sorting the wood scraps processed in step (2);
[0041] (4) Mix the modified urea-formaldehyde resin adhesive to the sorted wood scraps, and the sizing amount is 8%;
[0042] (5) slab paving, pre-pressing, and hot-pressing forming to obtain the particleboard of the present invention.
[0043] After determination, the formaldehyde emission in the particleboard of the present invention is only 6.9mg / 100g, and the strength reaches or exceeds the requirements of the national standard GB / T 4897-2003 (the physical and mechanical performa...
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