Medium crucible is an experimental container with moderate capacity and flexible design, designed for medium-scale sample processing, routine experimental needs or multi-functional application scenarios.
- Core Features
Capacity range
Standard size: usually between 500mL and 2000mL (some laboratory customized models may be larger).
Applicability: Suitable for processing samples ranging from grams to kilograms, taking into account both experimental efficiency and resource consumption.
Material selection
Ceramics: Alumina, silicon carbide, etc., which are resistant to high temperatures and have strong chemical stability.
Metal: platinum, molybdenum, nickel-chromium alloy, etc., suitable for ultra-high temperature or high purity experiments.
Composite materials: Ceramic-based composite materials that combine heat resistance and mechanical strength.
Design Advantages
Moderate opening: convenient for sample loading and removal while reducing heat loss.
Uniform wall thickness: ensures uniform heating, suitable for long-term high-temperature experiments.
Modularity: Some crucibles can be equipped with heating jackets or sensors to achieve automatic control.
- Application Scenarios
| field | Specific applications |
| Material synthesis | Molten metal alloys, ceramic precursors, suitable for batch preparation or directional solidification experiments. |
| Chemical analysis | Sample pretreatment (such as digestion, ashing) and element quantitative detection. |
| Metallurgical Industry | Metal smelting and alloying treatment, the single processing capacity can reach kg. . |
| Heat Treatment | Ceramic sintering, metal annealing, crucibles can withstand rapid heating and cooling. |
| New Energy Research | Battery material synthesis (such as lithium-ion battery positive electrode materials) and solid electrolyte preparation. |
- Technical advantages
Balance between efficiency and cost
A single experiment can process 500g-2kg of sample, which not only reduces the number of experiments but also avoids waste of resources.
Strong compatibility
It can be adapted to a variety of heating equipment (such as muffle furnace, induction furnace) to meet different experimental needs.
Durability
Ceramic crucibles can be reused more than 100 times, and metal crucibles have a longer lifespan.
- Typical Cases
Metal alloy melting
Aluminum alloy was melted in a muffle furnace using a 1000mL alumina crucible, with a single processing capacity of 1kg and a composition uniformity of 99.5%.
Battery material synthesis
1500mL nickel-chromium alloy crucible is used for high temperature solid phase reaction to prepare positive electrode materials for lithium -ion batteries, with a 20% increase in yield.
Environmental sample processing
800mL quartz crucible is used for soil sample digestion, with a single processing volume of 500g , meeting the needs of ICP -OES analysis.
- Selection Basis
Experimental requirements
If high-temperature melting is required, choose ceramic or metal crucibles; if rapid temperature rise and fall is required, choose silicon carbide crucibles.
Modular crucibles with sensors are selected for automated control.
Sample volume
Sample volume 500g-1kg: Choose 1000mL crucible;
Sample size 1kg-2kg: Choose a 1500-2000mL crucible.
Cost and lifespan
Ceramic crucibles are low cost but need to be replaced regularly; metal crucibles are high cost but durable.
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