Using rolling pressure on sawmill slabs of Chinese fir (<i>Cunninghamia lanceolata</i>) to form a combing processing blank

DU Chun-gui; LIU Zhi-kun; ZHANG Qi-sheng

Volume 25 Issue 3

Jun. 2018

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DU Chun-gui, LIU Zhi-kun, ZHANG Qi-sheng. Using rolling pressure on sawmill slabs of Chinese fir (Cunninghamia lanceolata) to form a combing processing blank[J]. Journal of Zhejiang A&F University, 2008, 25(3): 267-271.

Citation:

DU Chun-gui, LIU Zhi-kun, ZHANG Qi-sheng. Using rolling pressure on sawmill slabs of Chinese fir (Cunninghamia lanceolata) to form a combing processing blank[J]. Journal of Zhejiang A&F University, 2008, 25(3): 267-271.

Using rolling pressure on sawmill slabs of Chinese fir (Cunninghamia lanceolata) to form a combing processing blank

1.
School of Engineering, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China

Received Date: 2007-06-04
Rev Recd Date: 2008-01-04
Publish Date: 2008-06-10

Abstract

To probe optimal combing technologies and to design and manufacture the best possible rolls for a combing machine, sawmill slabs of Chinese fir(Cunninghamia lanceolata) were rolled radially without in cross direction. Thickness, moisture content, and compression rate were studied by forming combing processing blank using rolling pressure. Results showed that 1) thickness, moisture content, and compression rate with better rolling pressure technology meant a compression rate and moisture content about 50%. Also, 2) after rolled pressure treatment, the thickness of the slab decreased and the width increased. In addition, 3) after rolled pressure, Chinese fir cells had various distortions, for instance cell compress and a diminished cell cavity, but the cell wall was not destroyed, nevertheless, later most of the cells returned to normal.
- forestry engineering,
- sawmill slab of Chinese fir,
- rolling pressure,
- combing process,
- blank,
- Chinese fir oriented laminated stick lumber(CFOLSL)

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Using rolling pressure on sawmill slabs of Chinese fir (Cunninghamia lanceolata) to form a combing processing blank

1. School of Engineering, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China

Received Date: 2007-06-04

Rev Recd Date: 2008-01-04

Publish Date: 2008-06-10

Key words:

forestry engineering /
sawmill slab of Chinese fir /
rolling pressure /
combing process /
blank /
Chinese fir oriented laminated stick lumber(CFOLSL)

Abstract: To probe optimal combing technologies and to design and manufacture the best possible rolls for a combing machine, sawmill slabs of Chinese fir(Cunninghamia lanceolata) were rolled radially without in cross direction. Thickness, moisture content, and compression rate were studied by forming combing processing blank using rolling pressure. Results showed that 1) thickness, moisture content, and compression rate with better rolling pressure technology meant a compression rate and moisture content about 50%. Also, 2) after rolled pressure treatment, the thickness of the slab decreased and the width increased. In addition, 3) after rolled pressure, Chinese fir cells had various distortions, for instance cell compress and a diminished cell cavity, but the cell wall was not destroyed, nevertheless, later most of the cells returned to normal.

Using rolling pressure on sawmill slabs of Chinese fir (Cunninghamia lanceolata) to form a combing processing blank

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通讯作者: 陈斌, bchen63@163.com

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Using rolling pressure on sawmill slabs of Chinese fir (Cunninghamia lanceolata) to form a combing processing blank

1. School of Engineering, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China

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Using rolling pressure on sawmill slabs of Chinese fir (Cunninghamia lanceolata) to form a combing processing blank

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Using rolling pressure on sawmill slabs of Chinese fir (Cunninghamia lanceolata) to form a combing processing blank

1. School of Engineering, Zhejiang Forestry College, Lin'an 311300, Zhejiang, China

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