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zhangxiaosan
Legenda soseske
Pridružen/-a: 27.09. 2016, 06:54
Prispevkov: 1069
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 Objavljeno: 17 Jan 2017 08:24 Naslov sporočila: Wood flooring companies need innovative sales model |
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<p>Wood-plastic composites have the advantage that the performance of these two different materials can be ideally combined together. Plastic extrudates filled with wood flour (sawdust) or wood fibers have so far been mainly used in the construction sector, such as for balcony covers and for windows, doors and railings. The most important market in the United States, in 2000, produced about 200,000 tons of wood-plastic composites. The global annual growth rate is 25%. The main advantage of these composites is their wide design range, the production of waste-free and approximately wood-like appearance. Up to now, the use of wood fiber / plastic composites in injection molding has not been common, although they have a number of advantages. </p>
<p>The quality requirements associated with residual moisture content and homogeneous mixing are generally higher than those required for profile extrusion, especially when processing or producing thin-walled plastic parts in hot runner molds.Production of granular wood fiber / plastic compound development projects, with the injection of the required high-quality. Quality is dominated by two factors:The processing of wood fiber and wood species;</p>
<p>Process control in the production of composites in a twin screw kneader.One condition for the production of wood fiber / plastic composites having good mechanical properties by kneading high grade wood fiber materials is that the quality of the wood fibers is kept excellent. The wood fiber used for pelletizing must be classified as technical fiber by quality. The starting material for the production consists of selected coarse shavings. Large quantities of sawdust do not meet the quality requirements.Planer wood in the wood factory was ground into a technical wood fiber, with the largest possible length-to-diameter ratio. At the end of the milling process, the wood fibers are passed through a sieve, and the specific length distribution is classified by fiber length. Wood pellets used in injection molding generally between the length of 200 to 400mm, in special circumstances can reach 3000mm.</p>
<p>wpc park fence in good quality<br />
bamboo flooring for screened porch<br />
deck drawing for 22ft around pool</p> |
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