CN107322734A

CN107322734A - The production method of solid wood profile

Info

Publication number: CN107322734A
Application number: CN201710782888.2A
Authority: CN
Inventors: 周奉捷
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-03
Filing date: 2017-09-03
Publication date: 2017-11-07

Abstract

The invention discloses a kind of production method of solid wood profile, including step：A. drying process；B. charing process；C. acetylation process；D. Balance Treatment.

Description

The production method of solid wood profile

Technical field

The invention belongs to decoration material field, and in particular to a kind of production method of solid wood profile.

Background technology

House decoration is widely present in life, with modern economy level and growth in the living standard, to house ornamentation environmental protection It is required that more and more higher, timber is increasingly valued by people as renewable resource, but the anisotropy of timber in itself, make Timber that warpage, cracking, deformation, perishable, easy mould, service life easily occur using process is short, particularly fast growing wood, these Defects in timber are more serious, so as to limit the use approach of timber.

Therefore, the dimensional stability of timber and the service life of prolonging wood are improved, is that those skilled in the art are badly in need of solution Technical problem certainly.

The content of the invention

For above technical deficiency, the invention provides a kind of production method of solid wood profile, solve in background technology The problem of existing section bar being previously mentioned is present.

The present invention is achieved in that a kind of production method of solid wood profile, including step：A. drying process；B. carbonize Processing；C. acetylation process；D. Balance Treatment.

Further, the step a drying process, is made on moisture content as little as 5.0%~8.0%, lumber thickness Moisture content deviation is less than 2.0%, and wood internal residual stress is less than 2.0%.

Further, the step b charing process, is by the neat stacking of timber and the mark at the top of timber heap by 1t/m2 Quasi- compression steel plate frame pouring concrete briquetting, is then charged into carbonization of wood equipment, is brought rapidly up and humidifies, temperature is increased to 80 DEG C ~90 DEG C, humidity humidification to relative humidity be 70%~80%, keep 2h~4h, then using staged temperature-rising method according to (10 DEG C~20 DEG C)/h speed is warming up to 125 DEG C~135 DEG C and keeps 2h~4h, and staged temperature-rising method is then used again, By temperature according to/h to 175 DEG C~200 DEG C of (8 DEG C~15 DEG C), and 2h~4h is kept at the maximum temperature, using injection after terminating When atomized water method allows in timber fast cooling to carbonization device below 120 DEG C of temperature, stop heating and atomized water spraying terminates charcoal Change, kiln discharge immediately when being naturally cooling to 40 DEG C~60 DEG C.

Further, the step c acetylation process, is that the timber after kiln discharge carries out S4S immediately, then stacking It is immediately sent to well be impregnated into impregnating autoclave in 70 DEG C~100 DEG C of acetylation process solution added with nano material silica, Impregnation process 0.5h~2h under normal pressure.

Further, the acetylation process solution includes 75%~95% acetic anhydride and 5%~25% acetic acid.

Further, the acetylation process solution also includes the silica imported using mechanical blending method, and consumption is accounted for The 0.1%~1.0% of acetylation process solution.

Further, after the step c impregnation process terminates, unnecessary acetylation process liquid is first pumped using normal pressure, Then the unreacted treatment fluid and byproduct of reaction acetic acid on timber and in tank are pumped using vacuumizing method again, pressure is 100KPa ~150KPa, takes out 5min~10min.

Further, unreacted treatment fluid and byproduct of reaction acetic acid on timber and in tank are being pumped using vacuumizing method Afterwards, pressure inside the tank is recovered to normal pressure, temperature keeps 20min~60min at 60 DEG C~80 DEG C in tank.

Further, the step d Balance Treatments are that the timber after acetylation process is immediately sent to carry out in balance room Balance Treatment, temperature be 30 DEG C~40 DEG C, relative humidity be Balance Treatment 4~7 days under conditions of 75%~85%, make timber Moisture content return to 4.0%~7.0%.

Beneficial effects of the present invention：The present invention can provide stabilization, corrosion resistant is weather-proof, volume recovery is high, production cost is low, use The solid wood profile of long lifespan.

Embodiment

In order that technical problems, technical solutions and advantages to be solved are more clearly understood, tie below Embodiment is closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only to explain The present invention, is not intended to limit the present invention.

A kind of production method for solid wood profile that the present invention is provided, including step：

A. drying process：The step a drying process, is to make moisture content as little as 5.0%~8.0%, lumber thickness Upper moisture content deviation is less than 2.0%, and wood internal residual stress is less than 2.0%.

B. charing process：The step b charing process, is by 1t/m2 by the neat stacking of timber and at the top of timber heap Standard press steel plate frame pouring concrete briquetting, is then charged into carbonization of wood equipment, is brought rapidly up and humidifies, temperature is increased to 80 DEG C~90 DEG C, humidity humidification to relative humidity be 70%~80%, keep 2h~4h, then using staged temperature-rising method according to (10 DEG C~20 DEG C)/h speed is warming up to 125 DEG C~135 DEG C and keeps 2h~4h, and staged temperature-rising method is then used again, By temperature according to/h to 175 DEG C~200 DEG C of (8 DEG C~15 DEG C), and 2h~4h is kept at the maximum temperature, using injection after terminating When atomized water method allows in timber fast cooling to carbonization device below 120 DEG C of temperature, stop heating and atomized water spraying terminates charcoal Change, kiln discharge immediately when being naturally cooling to 40 DEG C~60 DEG C.

C. acetylation process：The step c acetylation process, is that the timber after kiln discharge carries out S4S immediately, then Stacking is immediately sent to be impregnated into 70 DEG C~100 DEG C acetylation process solution added with nano material silica in impregnating autoclave well In, impregnation process 0.5h~2h at ambient pressure, the acetylation process solution include 75%~95% acetic anhydride and 5%~ 25% acetic acid, the acetylation process solution also includes the silica imported using mechanical blending method, and consumption accounts for acetylation The 0.1%~1.0% of processing solution.

After the step c impregnation process terminates, unnecessary acetylation process liquid is first pumped using normal pressure, then used again Vacuumizing method pumps the unreacted treatment fluid and byproduct of reaction acetic acid on timber and in tank, and pressure is 100KPa~150KPa, Take out 5min~10min.

D. Balance Treatment：The step d Balance Treatments are that the timber after acetylation process is immediately sent to enter in balance room Row Balance Treatment, temperature be 30 DEG C~40 DEG C, relative humidity be Balance Treatment 4~7 days under conditions of 75%~85%, make wood The moisture content of material returns to 4.0%~7.0%.

By above-described embodiment, the purpose of the present invention is reached by fully effective.One of ordinary skilled in the art It should be understood that the present invention includes but does not limit the content described in embodiment above.Any modification without departing from the present invention is all It is included within the scope of claims.

Claims

1. a kind of production method of solid wood profile, it is characterised in that including step：A. drying process；B. charing process；C. acetyl Change is handled；D. Balance Treatment.

2. the production method of solid wood profile as claimed in claim 1, it is characterised in that the step a drying process, is to make wood Moisture content deviation is less than 2.0% on material moisture content as little as 5.0%~8.0%, lumber thickness, and wood internal residual stress is less than 2.0%.

3. the production method of solid wood profile as claimed in claim 1, it is characterised in that the step b charing process, is by wood The neat stacking of material and the standard press steel plate frame pouring concrete briquetting that 1t/m2 is pressed at the top of timber heap, are then charged into the carbonization of wood In equipment, it is brought rapidly up and humidifies, temperature is increased to 80 DEG C~90 DEG C, and humidity humidification to relative humidity is 70%~80%, is protected 2h~4h is held, then 125 DEG C~135 DEG C is warming up to according to (10 DEG C~20 DEG C)/h speed using staged temperature-rising method and protects 2h~4h is held, staged temperature-rising method is then used again, by temperature according to/h to 175 DEG C~200 DEG C of (8 DEG C~15 DEG C), and 2h~4h is kept under maximum temperature, temperature in timber fast cooling to carbonization device is allowed using jet atomization water method after terminating At less than 120 DEG C, stop heating and atomized water spraying terminates charing, kiln discharge immediately when being naturally cooling to 40 DEG C~60 DEG C.

4. the production method of solid wood profile as claimed in claim 1, it is characterised in that the step c acetylation process, is Timber after kiln carries out S4S immediately, and then stacking is immediately sent to be impregnated into well 70 DEG C~100 DEG C in impregnating autoclave added with receiving In the acetylation process solution of rice materials silicon dioxide, impregnation process 0.5h~2h at ambient pressure.

5. a kind of production method of stable enhanced type solid wood profile as claimed in claim 4, it is characterised in that the acetylation Processing solution includes 75%~95% acetic anhydride and 5%~25% acetic acid.

6. the production method of solid wood profile as claimed in claim 5, it is characterised in that the acetylation process solution also includes The silica imported using mechanical blending method, consumption accounts for the 0.1%~1.0% of acetylation process solution.

7. the production method of the solid wood profile as described in claim 1 or 4, it is characterised in that in the step c impregnation process knots Shu Hou, first pumps unnecessary acetylation process liquid using normal pressure, then pumped again on timber using vacuumizing method and in tank not Reaction treatment liquid and byproduct of reaction acetic acid, pressure are 100KPa~150KPa, take out 5min~10min.

8. the production method of solid wood profile as claimed in claim 7, it is characterised in that pumped using vacuumizing method on timber After the unreacted treatment fluid and byproduct of reaction acetic acid in tank, recover pressure inside the tank to normal pressure, temperature is 60 DEG C~80 in tank DEG C keep 20min~60min.

9. the production method of solid wood profile as claimed in claim 1, it is characterised in that the step d Balance Treatments are second Timber after acylated processing is immediately sent to be balanced processing in balance room, temperature be 30 DEG C~40 DEG C, relative humidity be Balance Treatment 4~7 days under conditions of 75%~85%, make the moisture content of timber return to 4.0%~7.0%.