Bang Bien Tinh Go 2

B¶ng 4 -1: NhiÖt ®é thuû tinh ho¸ cña thµnh phÇn chñ yÕu v¸ch tÕ bµo gç NhiÖt ®é thuû tinh ho¸ Tg (0C) Tr¹ng th¸i kh« Tr¹ng th¸i ít 134 ~ 235 77 ~ 128 167 ~ 217 54 ~ 142 231~ 253 222 ~ 250

Thµnh phÇn gç Lignin Hemi Celluloze Celluloze

B¶ng 4 - 2: §iÒu kiÖn xö lý v¸n b»ng h¬i níc nãng §é dµy

Thêi gian (min) xö lý ë nhiÖt ®é (0C) kh¸c

ph«i

nhau

Lo¹i gç

Gç Yu

Thuû khóc liÔu

110 40 50 70 80

(mm) 15 25 35 45 15 25 35 45

120 30 40 60 70 80 90 100 110

130 20 30 50 60 60 70 80 90

140 15 20 40 50 40 50 60 70

B¶ng 4 - 3: §iÒu kiÖn mÒm hãa cao tÇn cña gç

Lo¹i gç Feng yuang Zhe shu

§é dµy v¸n (mm)

§é Èm ban ®Çu (%)

MËt ®é cêng suÊt (W/cm3)

Thêi gian gia nhiÖt ®¹t chÊt lîng tèt nhÊt (min)

15

98

1.2

2

15

45

1.2

3

B¶ng 4 - 4: KÕt qu¶ uèn gç gia nhiÖt Viba Lo¹i gç

D

BQ

L L L R L L

≈3.0 <1.6 ≈2.5 <2.3 ≈2.9 <3.0

Gç l¸ réng NhËt B¶n

L R L L L L R R R L L L L L 300 450 600 R

<2.4 <1.8 ≈3.0 ≈3.0 <1.9 <2.0 <1.7 <1.5 <1.8 <1.9 <1.8 ≈2.8 ≈3.8 ≈3.8 ≈3.8 ≈2.0 ≈2.0 ≈2.0

L L R L L R R R

<5 5~20 <1.7 <5 5~20 ≈2.3 <1.9 <1.8

L L L L L L L L L L L L L L L

≈10.0 ≈14.2 ≈9.5 ≈18.7 ≈9.4 ≈15.0 ≈9.3 ≈14.0 ≈14.3 ≈9.4 ≈14.3 ≈14.9 ≈5.0 ≈9.8 <5.0

B¶ng 4 - 5: TÝnh n¨ng uèn cña mét sè lo¹i gç.

L L L

1: 2.5 1: 4 1: 5.7

L L L L L L L L L R L L L R L L L L R R R R L L L L L L L R R R R L L L L L L L L L L L L L

1: 10 1: 11 1: 2 1: 2 1: 2.5 1: 8 1: 3.0 <1: 1.6 1: 2.5 <1: 2.3 1: 2.9 <1: 3.0 <1: 2.4 <1: 1.8 1: 3.0 <1: 1.9 <1: 1.9 <1: 2.0 <1: 1.7 <1: 1.5 <1: 1.8 <1: 1.8 1: 2.8 1: 3.8 1: 3.8 <1: .5 1: 5-20 <1: 5 1: 5-20 1: 2.3 <1: 1.7 1: 1.9 1: 1.8 1: 10 1: 14.2 1: 9.5 1: 18.7 1: 14.3 1: 9.4 1: 14.3 1: 14.9 1: 14.9 1: 15.0 1: 5 1:9.8 <1: 5