Alumina Ceramic Crucibles and Corundum Ceramic Crucibles
Alumina ceramic crucibles, usually, we call crucibles with more than 95% alumina content as corundum crucibles.
Alumina ceramic crucibles and corundum ceramic crucibles include: arc alumina crucibles, square alumina crucibles, rectangular alumina ceramics crucibles, cylindrical ceramic crucibles, and various special-shaped alumina ceramics crucibles. We undertake all kinds of non-standard and special-shaped alumina corundum ceramic crucibles, please contact us! Corundum ceramic crucible series: suitable for various laboratory metal and non-metal sample analysis, and various industrial analysis.
Characteristics of alumina/corundum porcelain crucible:
1. High purity: Al2O3>99%, good chemical resistance
2. Good temperature resistance, long-term use at 1600℃, short-term use at 1800℃
3. Good resistance to rapid cold and heat, not easy to burst
4. High density of grouting molding, high purity alumina crucible, 99% alumina content
5. Used for evaporation, concentration or crystallization of solutions, and also for burning solid substances
[ The Basic Process Of Alumina/Corundum Crucible ]
At present, our factory's alumina crucibles with a capacity of 50KG-1000KG are all made in the form of pouring. The main material of the corundum crucible is neutral refractory corundum mullite. The corundum crucible is usually used at a temperature of 1600 degrees.
1. Open the mold according to the size of the drawing
2. Fully mix the aggregate and fine powder according to the formula
3. The slurry is poured into the mold and placed on a horizontal vibrating device to vibrate densely
4. Take off the outer mold after standing still for a period of time, and make it smooth by hand
5. Take off the inner mold and decorate the heart by hand
6. After being fully air-dried, it is fired in the kiln. The kiln temperature is based on the actual use temperature, that is to say, the kiln temperature must be higher than the actual use temperature
The above are large crucibles, and small cup-shaped crucibles are mainly formed by machine stamping.
The physical and chemical index of corundum crucible
Al2O3≥99
R2O≤0.2
Fe2O3≤0.1
SiO2≤0.2
Volume density (g/cm2) ≥3.80
Porosity (%) <1
Flexural strength (Mpa)> 350
Compressive strength (Mpa)> 12000
Dielectric constant ∑ (1MHz): 2
Maximum operating temperature (℃): 1800
[ Alumina Ceramic Crucibles Technical Parameters ]
|
Volume(ml)
|
Height(mm)
|
TopDiameter (mm)
|
BottomDiameter (mm)
|
|
5
|
25
|
27
|
15
|
|
8
|
30
|
27
|
15
|
|
10
|
27
|
28
|
18
|
|
15
|
30
|
33
|
20
|
|
20
|
35
|
38
|
20
|
|
25
|
40
|
40
|
22
|
|
30
|
42
|
47
|
25
|
|
50
|
47
|
50
|
30
|
|
100
|
60
|
65
|
35
|
|
150
|
65
|
75
|
40
|
|
200
|
70
|
80
|
40
|
|
300
|
85
|
90
|
40
|
|
500
|
122
|
90
|
45
|
|
950
|
160
|
100
|
60
|
|
1000
|
145
|
125
|
70
|
[ Corundum Dish ]
|
|
Diameter mm
|
High mm
|
Volume ml
|
|
75
|
28
|
60
|
|
80
|
35
|
75
|
|
100
|
40
|
125
|
|
110
|
40
|
150
|
|
127
|
46
|
250
|
|
143
|
50
|
400
|
|
160
|
60
|
500
|
|
190
|
65
|
1000
|
[ Corundum Ark ]
|
|
Ark
No.
|
Length
mm
|
Width
mm
|
High mm
|
|
72-77
|
73
|
12
|
9
|
|
88
|
85
|
13
|
10
|
|
92
|
90
|
14
|
10
|
|
97
|
93
|
16
|
11
|
[ Ark Semicircle ]
|
|
Semicircle No.
|
Length (mm)
|
Width (mm)
|
High (mm)
|
|
1
|
240
|
40
|
20
|
|
2
|
150
|
40
|
20
|
|
3
|
290
|
40
|
22
|
|
4
|
50
|
40
|
17
|
[ Ash Dish ]
|
|
No.
|
Top Length (mm)
|
Bottom Length (mm)
|
Top Width (mm)
|
Bottom Width (mm)
|
High (mm)
|
|
D-211
|
45
|
37
|
22
|
13
|
15
|
|
D-212
|
50
|
41
|
27
|
20
|
15
|
|
D-213
|
60
|
53
|
30
|
22
|
15
|
|
D-214
|
80
|
72
|
40
|
32
|
17
|
|
D-215
|
90
|
82
|
60
|
52
|
18
|
|
D-217
|
120
|
108
|
60
|
50
|
18
|
[ Cobustion Boat ]
|
|
No.
|
Length (mm)
|
High (mm)
|
Top Length (mm)
|
Bottom Length (mm)
|
|
D-95
|
72
|
9
|
11
|
6
|
|
D-96
|
77
|
9
|
12
|
7
|
|
D-97
|
88
|
10
|
13
|
8
|
|
D-98
|
95
|
10
|
15
|
9
|
|
D-99
|
97
|
11
|
17
|
10
|
[ Evaporating Dish With Handle ]
|
|
No.
|
Volume (ml)
|
Top Diameter (mm)
|
Bottom Diameter (mm)
|
High (mm)
|
|
D-78
|
30
|
50
|
30
|
30
|
|
D-79
|
40
|
56
|
34
|
32
|
|
D-79-1
|
50
|
60
|
36
|
34
|
|
D-80
|
70
|
66
|
40
|
39
|
|
D-81
|
100
|
80
|
52
|
45
|
|
D-82
|
125
|
86
|
53
|
46
|
|
D-83
|
150
|
90
|
54
|
48
|
|
D-84
|
200
|
96
|
56
|
52
|
|
D-85
|
250
|
108
|
65
|
60
|
|
D-85-1
|
300
|
110
|
66
|
62
|
|
D-87
|
500
|
132
|
80
|
70
|
|
D-88
|
700
|
140
|
82
|
75
|
|
D-89
|
1000
|
164
|
100
|
90
|
[ Volatile Determination Crucible ]
|
|
No.
|
Volume (ml)
|
Top Diameter (mm)
|
Bottom Diameter (mm)
|
High (mm)
|
|
D-75
|
20
|
32
|
20
|
43
|
|
D-76
|
25
|
37
|
22
|
46
|
|
D-77
|
30
|
40
|
24
|
50
|
[ Unglazed Crucible ]
|
|
Volume
(ml)
|
Top Diameter (mm)
|
Bottom Diameter (mm)
|
High (mm)
|
|
5000
|
165
|
100
|
265
|
|
1300
|
140
|
85
|
160
|
|
1000
|
135
|
80
|
150
|
|
750
|
115
|
65
|
150
|
|
500
|
105
|
65
|
170
|
[ Crucible Shelf ]
|
|
No.
|
Length (mm)
|
Width (mm)
|
High (mm)
|
Holes
|
|
D-900
|
160
|
100
|
40
|
6
|
|
D-901
|
160
|
150
|
40
|
9
|
Besides the above products, we also provide low wall crucibles, high wall crucibles, pores of crucibles, tight crucibles, double crucibles, roga crucibles, far infrared carbon crucibles, combustion tube, tapered tube, protection tube, threaded pipes, funnel, mortars, color plate, medicine shovel, clay triangle, acid resistant cylinder, staining VAT, experimental tank, corundum ball mill liner, alumina ceramic balls, corundum mortar, corundum tube, ect.
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