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In order to improve the dimensional stability of the wood and the surface finishing performance, and enhance the protection of surface coatings for wood, and extend the service life of wood products, and to expand the scope of application of the fast-growing poplar wood, metal processing the papers of the fast-growing poplar wood, used mainly positive the cross experimental method, under different temperature, pressure, time, aspen specimens was immersed into the molten low-melting alloy, and to determine the optimal process parameters, and to observe the microstructure of the metal poplar measured its dimensionally stable , all the shrinkage of water absorption and compressive strength parallel to grain, film adhesion performance, the conclusions are summarized as follows: 1. factors affecting the impregnation effect, pressure and dwell time of significant temperature effects significant impregnation effect with increasing pressure, pressure and time of growth and obvious. The optimal parameters for 0.5Mpa, 85 ℃, 1h. 2 was observed at room temperature and under atmospheric pressure metalization poplar microstructure found in the low-melting alloy in the metal specimen Poplar solid form is still present, and mainly exists in the conduit and the cell chamber of poplar, in the transverse plane showing silver highlights, silver filamentous long exist in the longitudinal sections. 3 aspen specimens after metalization process dimensional stability is improved. Reduce moisture absorption, moisture absorption rate than the material significantly reduce moisture barrier rate increased with the increase of the initial mass density increases, the overall upward trend; linear expansion were lower radial expansion rate to 70% of the material to 90%, tangential expansion rate of 60% -70% of the material, string radial linear expansion ratio from 2.37 times the material is reduced to about 1.93 times tangential linear resistance to the expansion and contraction of the radial linear anti- swelling and shrinkage of 1.2-4 times. 4. Poplar specimens after metal processing, with increasing density, compressive strength of the parallel to grain, as a whole showed an increasing trend, the increase is about 1.5 times the material density, parallel to grain compressive strength with good linear regression relationship, the correlation coefficient R2 is 0.9375, the regression equation y = 8.1633x 41.507 5. the metal the Poplar surface of distilled water contact angle of the material significantly increased, Description Poplar processing material of distilled water infiltration reduced, the surface free energy to be reduced. Material, treated wood, the surface of distilled water contact angle and time are very good exponential regression relationship. Compared with the material, the film adhesion of the treated wood Poplar improve a grade. By aging resistance of the experimental treatment, the metal of aspen specimens still has a higher level of film adhesion.
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