How to quickly identify the quality of preservative wood
Tips: When the moisture content of raw materials in the 30% -100% or more, due to the wood cell wall and cell cavity filled with water, preservative infiltration filled cell cavity is very slow and difficult; when the wood kiln dry or dry to moisture content 20 % Below, when the preservative will quickly fill the wood cell wall and cell cavity.
Second, speed up the production cycle.
Third, increase the rate of output, less a process to reduce costs.
Fourth, some domestic engineering side is not ordering habits and delivery time is very rapid, in order to meet customer requirements led to some factories cut corners, simplify the production process to complete the order;
Outdoor environment selection and maintain the appearance of the effect
□ steam drying 20% ??of the following re-pressurized wood preservative can effectively reduce the deformation of the wood in the outdoor deformation of the degree of shrinkage;
□ construction should be the moisture content of preservative wood control in 25% of the following construction.
□ After painting the outdoor coating paint can reduce the chance of cracking and deformation of wood.
Tips: Due to the special nature of the outdoor environment, there will be some cracking of the anti-corrosion wood, it is recommended to use the drying material and then the pressure of the anti-corrosion wood (inspection of anti-corrosion wood factory whether large-scale drying kiln is the basis of quality assurance) Reduce the chance of cracking deformation (see details of the construction maintenance recommended maintenance column)
Identification of Antiseptic Wood Quality
□ In addition to a small number of natural anti-corrosion of wood, the current vacuum pressure treatment of softwood treated as wood preservative, and in the natural environment life of 20-50 years; other ways such as brushing, soaking and so on A temporary solution, can not achieve the purpose of true anti - corrosion;
□ with moisture content ≤ 20% drying material after the sausage saw, the sapwood part of the preservative will penetrate 85% -100% (but the oil and heart material penetration will be more difficult);
□ with moisture content ≥ 30% wet wood direct pressure treatment of wood sawing, which part of the wood color, preservatives can not effectively penetrate the wood cells.
□ Brush soaking is similar to the coloring effect, sawn wood after showing the true color.
Domestic anti-corrosion timber is a new industry, most of the factories in the selection will use non-drying plate, the main reason:
One, no drying equipment.
1, the color, in the meat part of the ancient wood preservative preservative in the copper and green grass.
2, through the sawing of wood to see whether the penetration of preservative in the sapwood in the depth of the corresponding level to determine whether the qualified wood preservative.
A small preservative wood is not necessarily the best quality, usually small pieces of wood preservative wood smaller, heartwood, easy to crack, deformation coefficient.
