Alumina ceramic crucible for melting metal in laboratory
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Advantages of Alumina ceramic crucible
1. High Thermal Stability: Alumina ceramic crucibles boast remarkable heat resistance, capable of withstanding extreme temperatures encountered during metal melting processes.
2. Chemical Inertness: The inert nature of alumina ensures minimal interaction between the alumina ceramic crucible material and the molten metal, preserving the integrity and purity of the sample being analyzed.
3. Mechanical Strength: Alumina ceramic crucibles exhibit excellent mechanical strength, resisting thermal shock and physical damage during handling and thermal cycling.
4. Uniform Heating: The homogeneous thermal conductivity of alumina ensures uniform heating of the alumina ceramic crucible contents, facilitating even melting and homogenization of the molten metal.
Applications of Alumina ceramic crucible
1. Metal Analysis: Alumina ceramic crucibles are widely used in analytical chemistry laboratories for melting and analyzing metal samples, including elemental analysis, alloy characterization, and impurity determination.
2. Material Synthesis: In material science research, alumina ceramic crucibles serve as essential vessels for synthesizing and processing metal-based materials, such as nanoparticles, ceramics, and composites, through controlled melting and solidification processes.
3. Casting and Molding: Industries involved in metal casting and molding utilize alumina ceramic crucibles for melting and pouring molten metals into molds, enabling the production of intricate components with desired shapes and properties.
4. Research and Development: Alumina ceramic crucibles play a crucial role in research and development activities aimed at exploring new metallurgical processes, investigating material properties, and advancing technological innovations in various industries.
How to use alumina crucibles correctly
In our forging and experimental processes, crucibles are commonly used equipment. In order to ensure the normal use of the product, it is necessary to master the correct usage method. Below is a brief introduction.
When there is a solid to be heated with high heat, use a crucible. When using alumina ceramic crucibles, the crucible cover is usually placed diagonally on the crucible to prevent heated objects from jumping out and allow air to freely enter and exit for possible oxidation reactions. The crucible, due to its small bottom, usually needs to be placed on a mud triangle to be heated directly by fire. The crucible can be placed directly or diagonally on an iron tripod, and can be placed on its own according to experimental needs.
After heating, do not immediately place the alumina ceramic crucible on a cold metal tabletop to prevent it from cracking due to rapid cooling. It should not be placed immediately on wooden tabletops to prevent scalding or fire. The correct approach is to leave it on an iron tripod for natural cooling, or place it on an asbestos mesh to allow it to cool slowly. Please use crucible pliers for the retrieval of the crucible.
Alumina crucible (cone) | |||||
Item NO. | SPEC: TOD x BOD x ID x H | Volume (ml) | Shape | Note | |
1 | 066# | 34/20 x 29 x 40 | 20 | cone | |
2 | 229# | 40/24 x 36 x 38 | 25 | cone | |
3 | 077A# | 60/40 x 56 x 70 | 130 | cone | |
4 | 204# | 68/34 x 61.6 x 56.5 | 125 | cone | |
5 | 232# | 78/46 x 74 x 90 | 300 | cone | |
6 | 211# | 100/77 x 94 x 80 | 400 | cone | |
7 | 072# | 90/70 x 82 x 130 | 600 | cone | |
8 | 233# | 95/85 x 85 x 110 | 500 | cone | |
9 | 077B# | 120/77 x 108 x 160 | 1400 | cone | |
10 | 263# | 40/22 x 36 x 48 | 40 | cone | |
11 | 340# | 56/30 x 50 x 45 | 52 | cone | |
12 | 400# | 50/30 x 46 x 50 | 65 | cone | |
13 | 271# | 34/28.5 x 23.5x 33/8 | 15 | cone | |
14 | 441# | 45/30 x 80 | 70 | cone | |
15 | 445# | 22.479 x 14.859 x Th2.36 | 2 | cone | |
16 | 446# | 24.003 x 11.557 x Th2.413 | 1.8 | cone | |
17 | 499# | 85/45 x 79 x 70 | 230 | cone | |
18 | 516# | 28.6 x 12.7 x Th2.36 | 5 | cone | |
19 | 567# | 41.48 x 23.37 x Th2.39 | 15 | cone | |
20 | 615# | 37.59 x 17.02 x Th2.49 | 10 | cone | |
21 | 619# | 46.99 x 17.27 x Th2.36 | 15 | cone | |
22 | 650# | 29/7 x 14 x 30/1 | 1.5 | cone | |
23 | 667# | 29/18 x 34 | 10 | cone | |
24 | 668# | 58/35 x 68 | 100 | cone | |
25 | 669# | 79/42 x 93 | 250 | cone | |
26 | 676# | 110/75 x 80 x Th3 | 515 | cone | |
27 | 667B# | 29/19 x 34 | 10 | cone | |
28 | 668B# | 58/35 x 68 | 100 | cone | |
29 | 669B# | 79/42 x93 | 250 | cone | |
30 | 676B# | 110/75 x 80 x Th3 | 15 | cone | |
31 | 741# | 46.6/25.5 x 41.3 x 52 | 50 | cone | |
32 | 754# | 50/41 x 50 x Th8 | 20 | cone | |
33 | 755# | 170 x 40 x Th8 | 470 | cone | |
34 | 795# | 126/110 x 116 x 130 | 1075 | cone | |
35 | 874# | 77.2/37.06 x 71 x 96 | 270 | cone | |
36 | 934# | 83/48 x 108 x Th3-4 | 330 | Arc-shaped | |
37 | 935# | 83/48 x 108 x Th3-4 | 570 | Arc-shaped | |
38 | 211B# | 100/77 x 80 x Th3-4 | 400 | Arc-shaped | |
39 | 567B# | 41.48/28.95 x 23.88 x Th2.38 | 15 | cone | |
40 | 969# | 65/33 x 60 x 55 x Th2-2.5 | 105 | Arc-shaped | |
41 | 972# | 70/45 x 85 x Th3 | 200 | Arc-shaped | |
42 | 977# | 25/15 x 30 x Th1-1.5 | 10 | Arc-shaped | |
43 | 987# | 125 x 210 x Th7-10 | 1300 | cone | |
44 | A30# | 18/14 x 15 x 22/3.5 | 1.8 | cone | |
45 | A45# | 124 x 161 | 1500 | Arc-shaped | |
46 | A48# | 42/34 x 22 x Th2.8 | 1350 | cone | |
47 | A99# | 45/34 x 75° x 28.7 | 17 | cone | |
48 | B14# | 35/25 x 29 x Th2 | 10 | cone | |
49 | 447# | 29.464 x 14.732 x Th2.3622 | cone | ||
50 | 452# | 42.5 x 19.5 x Th2.4 | cone | ||
51 | 562# | 10 x 8 x 35 | |||
52 | 615B# | 37.59/15° x 17.02 x Th2.49 | cone | ||
53 | B100# | 38/27 x 47 x Th2-2.5 | cone | ||
54 | C21# | 23.88/21.84 x 12.7 x Th2.03 | cone | ||
55 | C24# | 81/40 x 72 x 120 | Arc-shaped | ||
56 | C48# | 36/26 x 42 | Arc-shaped | ||
57 | C59# | 48/30 x 52 | Arc-shaped | ||
58 | C85# | 48/32 x 54 | Arc-shaped | ||
59 | C90# | 34.57/17.78 x 142.47/2.49 x Th2.49 | cone | ||
60 | C91# | 15.75/11.18 x 80.52/2.54 x Th1.27 | cone | ||
61 | D24# | 34/15° x 19.5 x Th2.4 | cone | ||
62 | D61# | 22/20 x 18.5/17.5 x 20 | cone |
Alumina ceramic performance index (Notice of Correct in Leakeage Rate)
NO. | Property | Unit | Alumina |
1 | Al2O3 | % | >99.3 |
2 | SiO2 | % | — |
3 | Density | g/cm3 | 3.88 |
4 | Water absorption | % | 0.01 |
5 | Compressive strength | MPa | 2300 |
6 | 20℃ leakage rates | Torr・L/sec | >10-11=1.33322×10-12Pa・m3/sec |
7 | Twisting in high temperature | mm | 0.2 allowed in 1600℃ |
8 | Bonding in high temperature | not bonded in 1600℃ | |
9 | 20—1000℃ coefficient of thermal expansion | mm.10-6/℃.m | 8.2 |
10 | Thermal conductivity | W/m.k | 25 |
11 | Electric insulation strength | KV/mm | 20 |
12 | 20℃direct current insulation resistance | Ohm/cm | 1014 |
13 | High-temperature insulation resistance | 1000℃ MΩ | ≥0.08 |
1300℃ MΩ | ≥0.02 | ||
14 | Thermal shock resistance | 4 times not cracked in 1550℃ | |
15 | Maximum working temperature | ℃ | 1800 |
16 | Hardness | Mohs | 9 |
17 | Flexural strength | Mpa | 350 |
Our factory
Jinzhou Yunxing Industrial Ceramics Co., Ltd. was established in 2000, mainly producing various types of tubular ceramic products and various industrial parts with alumina content above 99.3%. The factory covers an area of 4000 square meters.
The company's main products are: alumina ceramic tubes, alumina ceramic crucibles, alumina ceramic rods, alumina ceramic boats, alumina ceramic plates, alumina ceramic parts, etc.
The company currently has 3 1800 ° C high-temperature furnaces and 2 1400 ° C low-temperature kilns independently designed and manufactured. The molding process is mainly based on grouting molding, and has other molding process equipment such as extrusion and hot die casting.
The company has 105 employees, including one senior ceramic engineer, three engineers, six overseas sales staff, and four professional after-sales staff.
FAQ
Q1.Why alumina ceramic crucible is used?
A1.Used as a material for industrial furnaces due to its ability to maintain its hardness at high temperatures. Used as a protector for high-temperature thermal couples. Used as a material for the chemical industry due to its high corrosion resistance.
Q2.What is the use of ceramic crucible?
A2. Alumina ceramic crucibles are crucial pieces of chemical equipment used for melting down materials, an effective way to reuse scrap items.Ceramic crucibles make it easier to recycle metallic materials because they can easily be cast into new objects or combined into new alloys.
Q3.What is an alumina ceramic crucible made of?
Sintered alumina ceramic curcibles ideal for very high temperature applications up to 1700°C. It is resistant to chemical attacks from most acids and alkaline solutions as well as hydrogen and other reducing gases, with the exception of : High concentration hydrofluoric acid.
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