Continuous densification of wood with a belt press: the process and properties of the surface-densified wood
نویسندگان
چکیده
Thermo-mechanical densification of sawn timber results in improved mechanical properties, but densified wood remains a fairly expensive niche product, partially because high-cost batch processing. Densification continuous process could address this problem and was shown to be possible previous research. The outcomes were limited proofs-of-concept, due insufficient cooling capabilities the used equipment, resulting high spring-back. Therefore, novel using belt press densify full-sized has been conceived. ensures almost constant contact between heating elements. study aimed analyse how processing temperature, speed compression ratio affected density profile, spring-back, set-recovery, Brinell hardness, bending properties. Results showed increase concentrated close beneath surface with element approx. 20% Belt speeds above 2 m min?1 caused higher spring-back reduced time element. hardness increased by up 250% at 27% while properties unaffected. temperature critical factors consider for future optimisation belt-press process.
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ژورنال
عنوان ژورنال: Wood Material Science and Engineering
سال: 2023
ISSN: ['1748-0280', '1748-0272']
DOI: https://doi.org/10.1080/17480272.2023.2216660