(1) Radial cracking and annular cracking at the end of the wood section.
Cause: The heating rate (heating rate) is too fast, or the cooling rate is too fast.
Method: Reduce the heating or cooling rate.
(2), the plasticity of the wood segment is insufficient
Cause: The heating temperature is not high enough, or the hydrothermal treatment time is too short
Method: increase the heating temperature and prolong the hydrothermal treatment time
(3), the plasticity of the wood section is too large
Cause: The temperature is too high and the hydrothermal treatment time is too long
Method: Reduce heating temperature and shorten hydrothermal treatment time
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