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In induction melting, the difference between quartz crucible and graphite crucible mainly lies in the heating method and melting range.
The main differences are as follows：
The quartz crucible is a white cup, and the graphite crucible is a black cup.
The quartz crucible is non-conductive, so it will not heat up by itself when the intermediate frequency current passes. Only the metal material being melted will be heated during the heating process.
The graphite crucible is conductive, and it will heat itself when a high-frequency current passes through it. Metal materials are heated by their own induction heating.
Therefore, graphite crucibles are also used to heat non-metallic materials.
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Quartz crucibles are more resistant to high temperatures than graphite crucibles. The maximum temperature of the intermediate frequency melting furnace is 2600°C, equipped with a quartz crucible; the maximum temperature of the high-frequency melting furnace is 1600°C, equipped with a graphite crucible.
Quartz crucibles are suitable for melting iron, aluminum, stainless steel, platinum, gold, palladium, etc.
Graphite crucibles are suitable for melting copper, brass, gold, silver, zinc, lead, and other non-ferrous metals and their alloys.
A crucible is one of the core pieces of equipment that every blacksmith needs, whether they’re beginners or long-time professionals. However, with so many unique types and styles on the market, it can be difficult to choose the right one for you. Consider implementing these tips during your search for the right blacksmithing crucible.
Start by familiarizing yourself with the diverse types of blacksmith crucibles. These tools come in a variety of materials, and some are better for certain applications than others. For example, graphite crucibles are compatible with a variety of metals you may want to smelt. Meanwhile, ceramic styles are ideal for smelting precious metals.
Additionally, note that if you want to work with several metals in your shop, you’ll need an equal number of crucibles to smelt them. Smelting different metals with the same equipment can lead to dangerous reactions and even cause injuries.
Crucibles also come in a range of sizes, from small crucibles to larger molds. Before choosing these smelting tools, check their size and capacity. If you plan to smelt larger quantities of metal in one go, you’ll need a larger size to support the load. The size of a crucible usually refers to how many pounds or kilograms of a certain material it can hold. Pay attention to the size markings on the sides of these tools when examining them in person or viewing images online.
No matter what type of crucible you need, it’s important that you source it from a trustworthy source. Finding the right seller is just as important as finding the right tool. It’s always important to view a seller’s history and reviews, especially if you’re purchasing online or from a used selection. Thankfully, there are dedicated blacksmithing shops and sellers like Cast Master Elite to help you find everything you need for your craft, including high-quality crucibles.
Remember these tips for finding the right blacksmithing crucible as you search for tools for your next project. Fortunately, you don’t need to go far to find high-quality blacksmithing gear. Here at Cast Master Elite, we offer graphite crucibles for sale for artisan blacksmiths and hobbyists alike. Browse our online shop and blog to learn more.
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