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≥75

≥75

≥60

≥40

≤0.8

≤1.5

≥65

≥70

≤0.5

MgO≥3

≥1690

≥1730

≥1730

≥1790

≥1790

≥1790

≥1580

KD≥1650

Ta≥1450

Ta≥1400

Ta≥1320

Ta≥1350

KD≥1550

KD≥1650

Ta≥1640

1450℃×2h
0～+0.2

1500℃×2h
+0.1～-0.4

1500℃×2h
0～+0.3

1300℃×2h
0.7

≤22

≤24

≤24(22)

≤20

≤24

≤22(24)

≤21(23)

≤20

≤18

≤20

≤30

真密度
≤2.33
True
Density

真密度
≤2.34
True
Density

≥2.0

≥2.0

≥2.0

≥2.65

≥2.4

≥40

≥35

≥25(20)

≥35

≥30

≥35(25)

≥40(30)

≥65

≥90

≥50

≥15

≥35

≥20
(DIN51068)

≥20

殘余石英: ≤1.0%
Residue quartz

1050℃×25h
≤0.25
1050℃×(5-25)h
≤0.1

1050℃×25h
≤0.25
1050℃×(5-25)h
≤0.1

1500℃
×50h
≤0.5

1500℃×
(20h-50h)
≤0.2

≤1.28

≤1.30

≤0.6

≤0.6

≤0.6

爐底、爐壁
Furnace
bottom, wall

其它
Others

蓄熱室大墻、格子磚
Regenerator wall brick and checker

炭化室、燃燒室
Coking chamer,
combustion chamber

爐門
Door