Wood microwave-impregnation modification process for solid wood floor heating

Abstract

Disclosed is a microwave-impregnating modified treatment process for wood for ground heating solid-wood flooring. The process comprises a. microwave treatment: putting wood in a microwave treatment device to undergo microwave treatment, wherein a microwave treatment process is carried out three times, and a treatment time interval is 1-3 min; regulating the radiation power to 2-5 KW the first time, the radiation time being 30-60 s; regulating the radiation power to 1-4 KW the second time, the radiation time being 20-40 s; and regulating the radiation power to 0.2-0.8 KW the third time, the radiation time being 8-15 s; b. cooling: carrying out cooling to reduce the temperature, and removing the wood from a tank when the temperature is reduced to 25-40°C; c. primary impregnation: impregnating the wood in an analytically pure water solution in a mass fraction of 20-30 % at an impregnation temperature of 50-70°C, taking out the wood and drying same after impregnating the wood for 25-35 h, wherein drying the wood is carried out until the water content reaches 8 %; d. secondary impregnation: putting the dried wood in a vacuum impregnating tank, regulating a vacuum degree to -0.20-(-0.10) MPa, maintaining the vacuum degree for 10-20 min, using a negative pressure to inject resin into a tank body at the same time, so that the wood is impregnated in the resin, and controlling the pressure to be 1-3 MPa and maintaining the pressure for 1-4 h; and e. obtaining the finished product: drying the wood and obtaining a final material.

Description

technical field

[0001] The invention relates to a wood modification treatment for solid wood floors for floor heating, in particular to a wood microwave-impregnation modification treatment process for solid wood floor heating, and relates to the field of wood floor and furniture manufacturing. Background technique

[0002] In recent years, with the improvement of people's consumption level, people pay more and more attention to high-quality home life experience, especially people's requirements for environmental protection and living environment comfort, the solid wood floor heating industry is also showing a warming trend. Timber is also in increasing demand. Due to the problems of conventional wood drying and modification for a long time, high energy consumption and serious pollution, in addition, some common solid wood materials cannot be used in floor heating environments due to their natural properties of shrinking when dry and expanding when wet, and their dimensions a...

Examples

Embodiment 1

[0029] Embodiment 1: Microwave processing equipment can adopt WBZ intelligent static microwave vacuum drying test, the technical parameters of equipment:

[0030] Rated power 8KW;

[0031] Output power 6KW (adjustable);

[0032] Microwave frequency 2450±50MHZ;

[0033] Maximum vacuum degree: ≤-0.08MPa;

[0034] Equipment size: 800×1500×1750mm;

[0035] Microwave leakage value <1mw / cm2 (national standard <5mw / cm2);

[0036] Power supply voltage: three-phase, 380V±5%, 50HZ;

[0037] Equipped with a vacuum system, the host of the equipment is 304 stainless steel;

[0038] Another vacuum impregnation tank (for resin impregnation).

[0039] Microwave modification process:

[0040] (1) Material selection: American southern pine, size 1000mm×135mm×30mm, initial moisture content 50-55%.

[0041] (2) Wood microwave-impregnation modification treatment process for solid wood floor heating floor with American southern pine:

[0042] 1. Put the southern pine board into the microwa...

Embodiment 2

[0048]Embodiment 2: wood microwave-impregnation modification treatment process for solid wood floor heating floor, specifically comprising the following steps:

[0049] a. Microwave: Put the wood into the microwave treatment equipment for microwave. The microwave treatment process is divided into 3 times, and the time interval between each treatment is 3 minutes; the first time adjusts the radiation power to 2KW, and the radiation time is 50s; the second time adjusts the radiation power to 3.5 KW, the radiation time is 20s; adjust the radiation power to 0.6KW for the third time, and the radiation time is 10s;

[0050] b. Cooling: cooling down, until the temperature drops to 25 ℃, out of the tank, when the moisture content of the wood reaches 10%;

[0051] c. One impregnation: impregnate the wood in an analytically pure aqueous solution of polyethylene glycol 1000 with a mass fraction of 30%, at an impregnating temperature of 50°C, take it out and dry it after impregnating for ...

technical field

[0001] The invention relates to a wood modification treatment for solid wood floors for floor heating, in particular to a wood microwave-impregnation modification treatment process for solid wood floor heating, and relates to the field of wood floor and furniture manufacturing. Background technique

[0002] In recent years, with the improvement of people's consumption level, people pay more and more attention to high-quality home life experience, especially people's requirements for environmental protection and living environment comfort, the solid wood floor heating industry is also showing a warming trend. Timber is also in increasing demand. Due to the problems of conventional wood drying and modification for a long time, high energy consumption and serious pollution, in addition, some common solid wood materials cannot be used in floor heating environments due to their natural properties of shrinking when dry and expanding when wet, and their dimensions a...

Examples

Embodiment 1

[0029] Embodiment 1: Microwave processing equipment can adopt WBZ intelligent static microwave vacuum drying test, the technical parameters of equipment:

[0030] Rated power 8KW;

[0031] Output power 6KW (adjustable);

[0032] Microwave frequency 2450±50MHZ;

[0033] Maximum vacuum degree: ≤-0.08MPa;

[0034] Equipment size: 800×1500×1750mm;

[0035] Microwave leakage value <1mw / cm2 (national standard <5mw / cm2);

[0036] Power supply voltage: three-phase, 380V±5%, 50HZ;

[0037] Equipped with a vacuum system, the host of the equipment is 304 stainless steel;

[0038] Another vacuum impregnation tank (for resin impregnation).

[0039] Microwave modification process:

[0040] (1) Material selection: American southern pine, size 1000mm×135mm×30mm, initial moisture content 50-55%.

[0041] (2) Wood microwave-impregnation modification treatment process for solid wood floor heating floor with American southern pine:

[0042] 1. Put the southern pine board into the microwa...

Embodiment 2

[0048]Embodiment 2: wood microwave-impregnation modification treatment process for solid wood floor heating floor, specifically comprising the following steps:

[0049] a. Microwave: Put the wood into the microwave treatment equipment for microwave. The microwave treatment process is divided into 3 times, and the time interval between each treatment is 3 minutes; the first time adjusts the radiation power to 2KW, and the radiation time is 50s; the second time adjusts the radiation power to 3.5 KW, the radiation time is 20s; adjust the radiation power to 0.6KW for the third time, and the radiation time is 10s;

[0050] b. Cooling: cooling down, until the temperature drops to 25 ℃, out of the tank, when the moisture content of the wood reaches 10%;

[0051] c. One impregnation: impregnate the wood in an analytically pure aqueous solution of polyethylene glycol 1000 with a mass fraction of 30%, at an impregnating temperature of 50°C, take it out and dry it after impregnating for ...