Perforated Alumina Ceramic Plate (3×11 Holes), High-Temp Insulating Spacer
$390.00
- Outer Dimensions (L×W): 174×80mm; Hole Diameter: 5±0.2mm; 1pc/pack.
- This Alumina Ceramic Plate is manufactured using high-purity Al2O3 (>99%) through a slip-casting process, resulting in high density and smooth, even surfaces on both the interior and exterior. It is designed for long-term use at temperatures up to 1600°C.
Precautions for Using 99% Alumina Crucibles
Before the first use, the crucible should be placed in an oven at approximately 105°C for 120 minutes to remove moisture.
Do not use gasoline torches, acetylene torches, or alcohol lamps for direct heating to avoid cracking of the crucible due to uneven heating.
- The distance between the crucible and the heating element (such as carbon tubes, silicon carbide rods, heating wires, etc.) should be greater than 2 cm.
4. The rate of heating or cooling should not be too rapid. Below 1200°C, the rate should be less than 5°C per minute; above 1200°C, it should be less than 4°C per minute. For cooling, it is recommended to use controlled power cooling. Directly turning off the power at high temperatures may cause rapid initial cooling, potentially leading to cracking.
5. For large crucibles, it is advisable to avoid direct contact between the bottom of the crucible and the furnace floor. Use high-temperature resistant materials such as corundum plates to elevate the crucible, promoting air convection and extending the crucible's lifespan (as shown at right).
Destination
- UK
- the USA and Canada
- Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia (Slovak Republic), Slovenia, Spain, Sweden, and Switzerland
- Australia, China (Mainland), Hong Kong, Israel, Japan, South Korea, Liechtenstein, New Zealand, Singapore, Malaysia, Taiwan, and Thailand
- Argentina, Chile, Colombia, India, Monaco, Pakistan, Peru, Philippines, South Africa, Tunisia, Turkey, and Uruguay
- Rest of World
Shipping Times
We aim to process all in-stock orders within 3 business day, and unless requested otherwise, all items will be dispatched via courier. Average transit times are given below.
- China (Mainland), Hong Kong, Taiwan, and Singapore 1-2 working days
- EU/USA/Canada 3-5 working days
- Rest of World 4-6 working days
Please note that this does not take into account time taken to clear items through customs, as this varies from shipment to shipment.
If any items are out of stock or require manufacturing, then we will notify you of this and can arrange a partial shipment at no extra cost to you.
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Arc-shaped Corundum Crucible with Lid, for Muffle Furnace, 99 Alumina, 3ml-50ml
- This crucible is suitable for use in a muffle furnace for ash determination or high-temperature experiments and is capable of handling samples with 30% volatile matter and 50% ash content.
- This Arc-Shaped Crucible is manufactured using high-purity Al2O3 (>99%) through a slip-casting process, resulting in high density and smooth, even surfaces on both the interior and exterior. It is designed for long-term use at temperatures up to 1600°C.
High-Purity Alumina Cylindrical Crucible, Multiple Sizes in Stock, for Muffle Furnace, 370ml-7000ml
- These Cylindrical Crucibles are manufactured using high-purity Al2O3 (>99%) through a Slip Casting / Press Casting process, resulting in high density and smooth, even surfaces on both the interior and exterior. It is designed for long-term use at temperatures up to 1600°C.
- Usage Instructions: Heat and cool gradually with the furnace; Avoid sudden temperature changes (rapid heating or cooling); Do not expose to open flames; Not suitable for metal smelting.