What are the main uses of alumina straight crucible?

　　 Alumina Straight Crucible As an important component of chemical instruments, it is a container for metal liquids and high-temperature heating, dissolving reactions, and refining, and is the basis for the smooth progress of chemical reactions. Alumina straight crucibles come in many models and specifications, and can be selected without restriction based on production scale, batch size, or type of smelting material, ensuring high applicability and purity of the smelting material.

　　1. After use, place it in a dry place to avoid intrusion; before use, it must be slowly baked to 500 degrees Celsius.

　　2. According to the capacity of the crucible, do not pack it too tightly to avoid thermal expansion of the metal.

　　3. When removing the molten metal, it is recommended to use a spoon to spread it out. Use tongs as little as possible. When using calipers and other tools, they should be consistent with the shape of the crucible. Avoid excessive local force to prevent shortening its lifespan.

　　4. Regarding service life, avoid direct spraying of strong oxidizing flames, which will shorten the life of the crucible due to oxidation of the raw materials.

　　The raw materials for tungsten production can be categorized into three main types. The first is crystalline natural graphite, the second is plastic refractory clay, and the third is calcined hard kaolin-type skeleton clinker. Since 2008, silicon carbide, alumina emery, ferrosilicon, and other high-temperature synthetic materials have been used to manufacture skeleton clinker. This clinker significantly improves product quality, density, and mechanical strength.

　　 Alumina Straight Crucible What are the main uses?

　　(1) Burning solid substances

　　(2) Solution evaporation, concentration, or crystallization (if an evaporating dish is available, an evaporating dish should be selected. Of course, a crucible can also be used for solution evaporation, concentration, or determination.)

　　Precautions for using alumina straight crucibles

　　(1) It can be heated directly, but cannot be suddenly cooled after heating; use tongs to remove it.

　　(2) Place the crucible on a clay triangle when heating.

　　(3) Stir during evaporation. Use residual heat for almost complete evaporation.

　　 Alumina Straight Crucible There are three types: ordinary graphite crucibles, shaped graphite crucibles, and high-purity graphite crucibles. Different types of graphite crucibles differ in performance, uses, and operating conditions, including raw materials, production methods, process technology, and product model specifications.

　　Alumina straight crucibles are mainly divided into three categories: the first category is the positive hole. Its specifications are "number". The second category is refined copper alloy, with 100 numbers for the prototype, and the third is steelmaking tungsten with 100 numbers.

　　Generally, the size is represented by sequential numbers (size), and a No. 1 crucible has a volume that can dissolve 1000 grams of brass, weighing 180 grams. When smelting different metals or alloys, the melting amount can be calculated by multiplying by the metal and alloy coefficient corresponding to the specific gravity and specification number.

　　The raw materials for alumina straight crucibles can be categorized into three main types. One is crystalline natural graphite, and another is plastic refractory material.

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