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胶合板胶层温度变化规律的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1986年03期
Page:
10-17
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
TEMPERATURE VARIATIONS IN GLUELINES OF PLYWOOD DURING HOT PRESSING
Article ID:
1000-2006(1986)03-0010-08
Author(s):
Hua Yukun & Zhang Yang
Department of Wood Science and Technology
Keywords:
Plywood Glueline temperature Shear strength
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1986.03.002
Document Code:
A
Abstract:
Time duration of hot pressing determines not only the quality of the plye wood, but also the productivity of hot press. The required length of time duration of hot pressing chiefly depends on the rising speed of the temperature in the glueline. This paper deals with the regular patterns of the rising of temperature in the glueline during hot pressing and its relationship with the shear strength of the plywood. Our tests show: 1. The changes of temperature in the glueline can be divided into three stages: fast rising, slow rising and dropping. 2. After the temperature is raised to 100-, the glueline should be continuously heated for some time. However, excessive heating can decrease the shear strength of the plywood. 3. When thicker plies are used, lower temperatures should be applied.

References

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Last Update: 1900-01-01