Silicon Carbide Crucible

Unlike nozzles and other fluid fittings made of the same material, Silicon Carbide Crucible is made from high-purity silicon carbide powder through cold isostatic pressing and high-temperature sintering. It is specially developed for static high-temperature conditions such as metal smelting, material sintering, and high-temperature reactions. It has excellent high-temperature resistance, thermal shock resistance, and resistance to melt erosion, and is a high-end upgraded product to replace traditional graphite crucibles and clay crucibles.

Core compatible procurement regions and industry scenarios:

Europe: German precision casting, Swiss semiconductor materials, and Nordic non-ferrous metal smelting industry.

North America: US lithium battery and semiconductor material sintering, Canadian mining smelting

Southeast Asia: Aluminum, copper, and zinc non-ferrous metal smelting industries in Indonesia and Malaysia

Middle East: UAE precious metals smelting, Saudi Arabia non-ferrous metals casting projects

Australia: Mining and precious metal extraction, ceramic powder calcination industry

The products can be directly adapted to overseas non-ferrous metal smelting production lines, lithium battery positive and negative electrode material sintering furnaces, semiconductor powder calcination, chemical high-temperature reaction kettles and other equipment for matching, maintenance and replacement. They support cross-border supply in full boxes and containers, and come with export customs declaration and country of origin qualification documents.

Product Core Performance Advantages

As a high-performance silicon carbide refractory container, our Silicon Carbide Crucible has multiple performance advantages compared to traditional graphite, clay, and alumina crucibles. Its core selling points are as follows:

Ultra-high temperature resistance and excellent thermal shock stability : Long-term operating temperature can reach 1580℃, short-term temperature peak resistance is 1650℃, can withstand frequent alternating hot and cold shocks, and will not crack or deform under rapid cooling and heating cycles, suitable for intermittent and continuous furnace operation conditions.

High thermal conductivity and energy saving, improving smelting efficiency : The thermal conductivity can reach 120-150W/m・K, far exceeding that of traditional refractory crucibles. The heat transfer is fast and uniform, which can shorten the heating time by more than 30%, reduce smelting energy consumption, and improve the production efficiency of a single furnace.

Resistant to molten metal corrosion and does not contaminate materials : The material is dense and has low apparent porosity, which can resist long-term corrosion from molten metals such as aluminum, copper, and zinc, as well as acids, alkalis, and molten salts. No impurities are released, and the molten materials are not contaminated, ensuring product purity.

High structural strength and long service life: The cold isostatic pressing process makes the blank structure dense and uniform, with high mechanical strength and strong resistance to mechanical impact and thermal stress. Its service life is 5-8 times that of ordinary clay crucibles, which greatly reduces the frequency of replacement and consumable costs.

Full range of specifications, supporting customized development : covering multiple volumes from 50ml to 50L, supporting various shapes such as cylindrical, conical, square, and with lid, and can be matched with different brands and models of melting furnaces and sintering furnaces, directly adaptable without furnace modification.

Original factory quality control, stable and reliable delivery : All processes are handled in-house, and each batch undergoes comprehensive testing for dimensions, density, and temperature resistance. Standard specifications are kept in stock, supporting large-volume export orders. Please provide a complete quality inspection report and material certificate.

Silicon Carbide Crucible factory stock various sizes

Product Technical Parameters

Core application industries and operating conditions

Silicon carbide crucibles are primarily used in high-temperature melting and sintering applications, and their application areas are completely different from those of silicon carbide nozzles and wear-resistant liners. They are core high-temperature consumables in the metallurgical, new energy, and semiconductor industries.

Widely used in non-ferrous metal smelting, lithium battery positive and negative electrode material sintering, electronic ceramics and photovoltaic silicon material calcination, corrosive molten salt high-temperature reaction, special ceramic powder firing, laboratory high-temperature material testing and other scenarios, it can effectively solve the industry pain points of traditional crucibles such as insufficient temperature resistance, easy cracking, short life, and contamination of materials, and greatly improve production stability and product quality.

Silicon Carbide Crucible industrial melting furnace application

Original factory quality and cross-border service guarantee

Shandong Qishuai Wear-Resistant Equipment Co., Ltd. is a professional supplier of Silicon Carbide Crucibles products. With more than ten years of experience in the field of Silicon Carbide Ceramic refractory and wear-resistant products, we have mature capabilities in customized R&D, large-scale production and cross-border supply.

The factory adheres to a direct-from-the-factory model, eliminating middlemen and markups. All silicon carbide crucibles undergo independent control throughout the entire process of forming, sintering, and quality inspection, ensuring stable and controllable quality. We provide global B2B buyers with a one-stop service including free selection of operating conditions, customized size design, installation and usage guidance, and cross-border after-sales follow-up. We support sample testing, bulk customization, and project matching, responding to procurement quotation requests within 24 hours.

FAQ

Q1: What metals and materials can silicon carbide crucibles be used to melt?

It can be used for smelting most non-ferrous and precious metals such as aluminum, copper, zinc, silver, and gold. It can also be used for high-temperature sintering and reaction of lithium battery positive and negative electrode materials, electronic ceramic powders, magnetic materials, and molten salt chemical raw materials. It is not recommended for long-term use with strongly alkaline molten materials.

Q2: What are the advantages of silicon carbide crucibles compared to graphite crucibles?

Compared to graphite crucibles, silicon carbide crucibles have stronger oxidation resistance, no carbon precipitation to contaminate materials, longer service life, and do not require frequent application of protective coatings, resulting in lower maintenance costs. They are more suitable for smelting and sintering scenarios with high material purity requirements.

Q3: Can you customize silicon carbide crucibles of special sizes and shapes?

Full-dimensional customization is supported. Silicon carbide crucibles of different volumes, wall thicknesses, and shapes (square, conical, with spout, with lid, etc.) can be customized according to the customer's furnace size and loading requirements to match various non-standard furnace types and process requirements.

Q4: What is the delivery time for standard-sized crucibles?

Standard silicon carbide crucibles of commonly used volumes are kept in stock, and in-stock orders can be shipped within 48 hours; non-standard customized products have a production cycle of 10-15 working days, and can be prioritized according to project schedules to ensure timely delivery to overseas customers.

Q5: What supporting qualification documents can be provided for export procurement?

We can provide a complete set of original manufacturer technical specifications, material testing reports, certificates of conformity, product instruction manuals, packing lists, customs declaration documents, etc., free of charge, to meet all the needs of overseas customs clearance, project bidding, and final acceptance.

Precautions:

1.Storage: The crucible must be placed in a well-ventilated and dry place. If it gets damp, it will directly affect its normal use.

2.Handling: Handle with care when taking and transporting. Do not drop or roll on the ground, otherwise the protective layer on the surface can be easily scratched.

3.Baking preheating: Before use, the crucible must be thoroughly baked. The temperature should be gradually increased. Turn the crucible several times during baking to ensure that the entire crucible is heated evenly and that the moisture inside is completely dried. The final temperature should be above 500℃.

4.Furnace matching: The furnace must be matched with the crucible size, and the gaps left at the top, bottom and sides must meet the standards. The furnace lid must not press on the crucible body.

5.Using fire: When burning, do not let the flames shine directly on the crucible body and the bottom base.

6.Adding ingredients: Add ingredients slowly, and crushed materials are most suitable; do not fill the crucible too full or press it too tightly at once, otherwise the top of the crucible may crack.

7.Crucible tongs: The tongs used for loading and unloading the crucible must match the shape of the crucible, otherwise the crucible may be damaged when clamping.

8.Frequency of use: Use it continuously as much as possible to ensure that the crucible performs to its full potential.

9.Additive control: Do not add too many additives during smelting, as excessive amounts will significantly shorten the lifespan of the crucible.

10.For daily use: Rotate the crucible from time to time during the smelting process to ensure even heating and extend its lifespan.

11.Cleaning residue: When cleaning the slag and coke stuck inside and outside the crucible, tap lightly. Too much force can easily damage the crucible.

Silicon Carbide Crucible precautions