On Developing Plywood Production and Expanding Plywood Species in Heilongjiang Province
The use of plywood is an important way to save wood. According to calculation: 2.5m~3 logs can produce 1m~3 plywood, which can replace 3.5m~3 sawn timber. The sawn timber yield is calculated by 70%. 3.5m~3 is equivalent to 5m~3 logs, that is, 1m~3 logs can be made into plywood, which can top 2m~3 logs. If the large log cores left in the first rotation are re-rotated with a small veneer machine to produce small size plywood, the utilization ratio of logs can be increased by about 5%, thus saving more logs. From this point of view, the development of plywood production has the important significance of saving wood. The present situation of plywood production in Heilongjiang Province has a history of several decades. There are three large-scale plywood factories with an annual production capacity of 60,000 Li in the early 1970s. In recent years, some special plywood equipment has been introduced from abroad, and the technical force is relatively strong. Urea-formaldehyde resin and phenol-formaldehyde resin binder are widely used, which can produce plywood of more than three plywood till shipboard, and high-grade plywood of various specifications.
The above contents are purely personal and professional views and analysis, and do not represent industry views and official views. Please make your own analysis based on official opinions.如无特殊说明，文章均为本站原创，转载请注明出处。If there are no special instructions, the articles are original, if you want to use or reproduce, please indicate the original source www.plywoodinspection.com,If you find that our articles infringe on your copyrights and interests, please email us at firstname.lastname@example.org in time and we will delete it at the first time.