Flame-proof type compressed solid wood and production method thereof
A production method and technology of wood, which is applied in wood compression, wood treatment, humidity control of wood, etc., can solve the problems of poor dimensional stability of flame-retardant profiles, service life not resistant to decay, prone to mildew and blue stains, etc., to overcome wrinkle shrinkage and collapse, improve permeability, and reduce water content deviation
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Embodiment 1
[0035] (1) The first high-temperature and high-humidity rapid drying step: stack the 24mm thick masson pine fast-growing timber in the drying kiln, first open the humidification valve to quickly humidify the drying kiln and directly humidify to a relative humidity of ≥98%, so that the drying kiln Fill with water vapor, then keep the humidification valve open, keep the relative humidity ≥ 98%, and open the heating valve for the first time to quickly heat until the dry bulb temperature is 2°C higher than the wet bulb temperature and keep it for 5 hours, and continue to humidify to control the relative humidity in the drying kiln to 99~ 100%, heat up the dry bulb temperature in the kiln from 103 to 135°C, and dry the masson pine with a thickness of 24mm at 2°C for 2 hours for 3 days to reduce the moisture content of the wood to 6%.
[0036] (2) Atmospheric pressure flame retardant treatment step: prepare a water-soluble inorganic phosphorus-nitrogen-boron flame retardant with a so...
Embodiment 2
[0047] (1) The first high-temperature and high-humidity rapid drying step: stack the 100mm thick poplar fast-growing timber in the drying kiln, first open the humidification valve to quickly humidify the drying kiln and directly humidify to a relative humidity ≥ 98%, so that the drying kiln Fill the interior with water vapor, then keep the humidification valve open, keep the relative humidity ≥ 98%, and open the heating valve for the first time to quickly heat until the dry bulb temperature is greater than the wet bulb temperature by 2°C and keep it for 25 hours. Continuous humidification controls the relative humidity in the drying kiln to 99 ~100%, heat up the dry bulb temperature in the kiln from 103 to 135°C, and dry the poplar wood at a thickness of 100mm at 2°C for 10.5h for 15 days to reduce the moisture content of the wood to 12%.
[0048] (2) Flame retardant treatment step: prepare ammonium polyphosphate (APP) flame retardant with a solution concentration of 20% in the...
Embodiment 3
[0057] (1) The first high-temperature and high-humidity rapid drying step: stack the 30mm-thick poplar fast-growing timber in the drying kiln, first open the humidification valve to quickly humidify the drying kiln and directly humidify to a relative humidity ≥ 98%, so that the drying kiln Fill the interior with water vapor, then keep the humidification valve open, keep the relative humidity ≥ 98%, and open the heating valve for the first time to quickly heat until the dry bulb temperature is 2°C higher than the wet bulb temperature and keep it for 7 hours. Continuous humidification controls the relative humidity in the drying kiln to 99 ~100%, heat up the dry bulb temperature in the kiln from 103 to 135°C, and dry the poplar wood at a thickness of 100mm at 2°C for 4 hours for 7 days to reduce the moisture content of the wood to 9%.
[0058] (2) Flame retardant treatment step: prepare ammonium polyphosphate (APP) flame retardant with a solution concentration of 20% in the cemen...
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