CN1403251A

CN1403251A - Method of preventing rare hard timber from deforming

Info

Publication number: CN1403251A
Application number: CN 02146715
Authority: CN
Inventors: 包天伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-04
Filing date: 2002-11-04
Publication date: 2003-03-19
Anticipated expiration: 2022-11-04
Also published as: CN1173808C

Abstract

The present invention relates to the technology of household goods. The method of preventing rare hard timber from deforming includes adding paraffin into solvent, heating the mixture to dissolve paraffin, soaking timber clamped with some fixture for maintaining the shape into the solution heating the solution to 100-105 deg.c, maintaining, heating to 115-120 deg.c, maintaining for the second time, and cooling naturally. The said method makes the timber become stable in shape, so that the timber will not deform further after being produced into furniture. Furthermore, the timber thus processed has low water and fat content and fine surface and is favorable to painting, waxing and preventing mildew and moth.

Description

A kind of method that prevents famous and precious hardwood distortion

Technical field

The present invention relates to a kind of method that prevents famous and precious hardwood distortion, belong to technical field of living necessaries of humans.

Background technology

As everyone knows, as famous and precious hardwood such as red sandalwood, chicken wings, acid branch, old redwood, rosewoods, because its quality is hard, color is calm stable, made goods such as furniture, and color and luster is noble elegant, and corrosion-resistant, wear-resistant, durable in use, therefore extremely people's favor always.These famous and precious hardwood are the same with other solid wood, the moisture of timber inside and resin, constantly expand or contraction with the variation of temperature, humidity, make the timber easy deformation, after timber is made furniture or ornaments, lift up phenomenons such as song, cracking owing to the influence that is subjected to external environment conditions such as weather, thereby had a strong impact on the good looking appearance and the result of use of blackwood products.For this reason, in all age, craftsman attempt to take the whole bag of tricks that timber is carried out preliminary treatment manufacturing before the product always, to reduce water content and the fat content in the timber, stablize wood performance.Existing processing method has bubble method, oven drying method etc., but produces little effect, and these method long construction periods, and the timber wastage is big.

Summary of the invention

The objective of the invention is shortcoming, propose a kind of method that prevents the distortion of famous and precious hardwood, make redwood dewatering and defatting as far as possible before processing, prevent the purpose of being out of shape to reach at prior art.

The method that prevents famous and precious hardwood distortion that the present invention proposes comprises following each step:

1, add paraffin in solvent, the weight ratio of adding is a solvent: paraffin=1: 0.1-1.5.

2, said mixture is placed vessel in heating to paraffin dissolve, can not use naked light, constantly stir in the heating process.

3, the timber blank is put into above-mentioned solution, can blank be clamped, to remain stationary with anchor clamps.According to the water content of timber, the size of specification, in 2-10 hour, be warming up to 100 ℃-105 ℃, be incubated 2-10 hour.

4, be warming up to 115 ℃-120 ℃ again, be incubated 2-3 hour, naturally cool to 60 ℃-80 ℃, timber is taken out from solution, wait cooling fully back stand-by.

Solvent in the said method is solvent naphtha or petroleum product.

In the 4th step of said method, can continue to add solvent in the temperature-rise period,, make the solvent and the content ratio of paraffin be: solvent: paraffin=1: 0.1-1.5 to adjust the paraffin content in the solution.

The method that prevents famous and precious hardwood distortion that the present invention proposes, at timber because of characteristics moisture, that contain the fat easy deformation, timber is placed in the special solution heats, moisture in the timber is evaporated rapidly, solvent wherein makes the resin dissolves in the timber, and paraffin wherein enters when high temperature in the pore on timber top layer, is filled in the pore after the cooled and solidified, prevent that extraneous moisture from entering the inside of timber once again, thereby prevented the distortion of timber effectively.Utilize method of the present invention that famous and precious hardwood is carried out preliminary treatment, can in than short-term, make the distortion of timber reach stable, make and utilize pretreated timber Hepplewhite no longer to deform, thereby widened the suitable region of famous and precious hardwood greatly.And method of the present invention is simple for process, and processing cost is cheap, and timber after treatment is not only moisture, fat content is low, and wood surface is fine and smooth more, helps the furniture painting of making is waxed, and prevents from better that furniture from going mouldy to damage by worms.

The specific embodiment

Introduce embodiments of the invention below:

Embodiment 1:

Get 1 part of 5# white oil earlier, add 0.2 part in paraffin, this mixture is heated to 80 ℃, after paraffin dissolves, put into timber, temperature rise to 102 ℃ is incubated 3 hours, solution ratio is adjusted to 1 part of white oil, 0.8 part in paraffin, temperature rise to 115 ℃ is incubated 2 hours, and temperature is reduced to 72 ℃ naturally after 3 hours, takes out cooling.

Embodiment 2:

Get 1 part of 200# solvent naphtha, add 0.3 part in paraffin, this mixture is heated to 80 ℃, treat that paraffin dissolves after, put into timber, temperature rise to 105 ℃ is incubated 8 hours, and solution ratio is adjusted into 1 part of solvent naphtha, 0.1 part in paraffin is heated to 120 ℃, is incubated and naturally cools to 69 ℃ after 2 hours, takes out cooling.

Embodiment 3:

Get 1 part of kerosene, add 1.2 parts in paraffin, be heated to 85 ℃, put into timber, temperature rise to 117 ℃ is incubated 2 hours, naturally cools to 70 ℃ of taking-ups.

Result in the foregoing description after used timber title and specification and the processing for details see attached table, water content was handled after after normal temperature placement, oven dry, the fatigue test such as freezing, water content is all less than 6% all about 15% before used timber was handled.Its length of the timber of handling is shunk very little, so ignore, the magnification of thickness and the magnification of width are basic identical, therefore only lists width.

Instance number	The timber title	Original specification (long * wide * thick)	Handle the back width	Put 240 hours for 24-28 ℃	45 ℃ were dried by the fire 72 hours	-16 ℃ froze 2 hours	Magnification
Instance number	The timber title	Original specification (long * wide * thick)	Handle the back width	Put 240 hours for 24-28 ℃	45 ℃ were dried by the fire 72 hours	-16 ℃ froze 2 hours	Magnification	1	The Southeast Asia rosewood	300×250×10	?246.83	?247.01	?246.92	?246.25	-0.10％
2	The Southeast Asia Door frame	300×150×50	?144.51	?144.55	?144.51	?144.41	-0.09％	1	The Southeast Asia rosewood	300×250×10	?246.83	?247.01	?246.92	?246.25	-0.10％
2	The Southeast Asia Door frame	300×150×50	?144.51	?144.55	?144.51	?144.41	-0.09％	3	Southeast Asia acid branch wood	300×100×25	?98.41	?98.54	?98.53	?98.45	?0.09％

Claims

1, a kind of method that prevents famous and precious hardwood distortion is characterized in that this method comprises following each step:

(1) add paraffin in solvent, the weight ratio of adding is a solvent: paraffin=1: 0.1-1.5;

(2) said mixture is placed vessel in heating to paraffin dissolve;

(3) the timber blank is put into above-mentioned solution, in 2-10 hour, be warming up to 100 ℃-105 ℃, be incubated 2-10 hour;

(4) be warming up to 115 ℃-120 ℃ again, be incubated 2-3 hour, naturally cool to 60 ℃-80 ℃, timber is taken out from solution, wait cooling fully back stand-by.

2, the method for claim 1 is characterized in that wherein said solvent is solvent naphtha or petroleum product.

3, method as claimed in claim 2 is characterized in that wherein said petroleum product is white oil or kerosene.

4, the method for claim 1 is characterized in that continuing to add solvent in the temperature-rise period in wherein said the 4th step, to adjust the paraffin content in the solution, makes the solvent and the content ratio of paraffin be: solvent: paraffin=1: 0.1-1.5.

5, method as claimed in claim 4 is characterized in that wherein said solvent is white oil or solvent naphtha.