The silicon carbide crucible is a bowl shaped container with a deep ceramic bottom. When solid is heated by fire, crucible must be used, because it can withstand high temperature more than glassware. This is also the reason why the silicon carbide crucible is used by the public. First of all, the use of the silicon carbide crucible is introduced, hoping to help everyone.

　　The crucible usually does not fill the melt too much to prevent the heat from jumping out and allowing the air to pass in and out freely to allow for possible oxidation. Because the bottom of the crucible is very small, it is usually needed to be heated directly by the fire on the mud triangle. The crucible can be placed on the iron tripod by either positive or oblique, and can be set up according to the requirements of the experiment. The crucible must not be placed on the cold metal table immediately after heating so as to avoid its rupture due to rapid cooling. You can't put it on the wooden table immediately to avoid burning the desk or causing fire. The correct method is to cool the holder on the iron tripod or to cool it on the asbestos net.

　　In some solid in high temperature processing, we need to use the crucible, because compared to ordinary glass crucible can withstand higher temperatures, here mainly recommended silicon carbide crucible, following on from the North carbon graphite products manufacturers to introduce the industrial value of silicon carbide crucible.

　　As the name suggests, the main raw material of silicon carbide crucible is silicon carbide, and the main characteristic of SiC crucible is due to silicon carbide. SiC is also called emery, chemical formula is SiC, it is made of quartz sand, petroleum coke (or coal tar), sawdust and other raw materials through the resistance furnace high temperature smelting materials. SiC content in silicon carbide is about 95% of the black silicon carbide has a strong toughness, high temperature characteristics, silicon carbide crucible is made of the black silicon carbide, silicon carbide crucible at high temperature in the process of using low thermal expansion coefficient, for rapid heating and cooling has good anti strain performance, good to have pH the corrosion resistance is a good chemical stability of the products. Silicon carbide crucible has good performance in metallurgical, mechanical, chemical and other industrial sectors depending on its good performance.

　　The performance of the silicon carbide crucible is good. It has good performance in metal smelting and alloy smelting, and has excellent technical and economic results in industry.

　　Beijing Great Wall Co., Ltd is dedicating on crucible over decade and hope to supply the best to our dear clients.

　　The crucible is a bowl shaped container with a deep bottom. The general graphite crucible can not guarantee the safety in the high temperature environment, and the conductive speed is slow so that it is not conducive to the experiment. When a solid is heated by a fire, it is necessary to use a graphite crucible. Because it is more able to withstand high temperatures than glass vessel, the current silicon carbide crucible is widely used.

　　We don’t put too full the melting stuff in the silicon carbide crucible usually when it is used so as to prevent the heat from jumping out and let the air be free to get in and out for possible oxidation reaction. Because the bottom of the crucible is very small, generally it need to be in the mud triangle in order to heat by the fire directly. The crucible is placed on the iron triangle frame with a positive discharge or an inclined release, and the demand of the experiment can be arranged on the self. it shall not be placed on a cold metal table immediately after the crucible is heated to prevent it from cracking due to sharp cooling. It also can not be placed on the wooden desktop immediately in order to avoid hot to the desktop or cause a fire. The correct approach to the iron tripod on the natural cooling, or placed on the asbestos network to make it slowly cooling.

　　How to choose a good quality silicon carbide crucible?It has a high temperature resistance because silicon carbide crucible is mainly used for melting metal, so the correct selection of a silicon carbide crucible is particularly important. With the naked eye to check the appearance of silicon carbide crucible to see if there are cracks carefully and if there is a clear rift on it so as to avoid unnecessary damage in the work. We also can use caliper to measure the smoothness of a crucible, and the digital Standard Specification for a lot of difference, should be careful to buy. The good silicon carbide crucible can not only accelerate the work efficiency, but also can save consumption, will not cause unnecessary waste.

　　Our silicon carbide crucible using the international latest technology of isostatic pressing method and strict quality assurance testing system, we select high quality refractory raw materials, high-tech formula and developed a new generation of high quality silicon carbide crucible . It has the product volume density, high temperature resistant, fast heat, acid and alkali resistant erosion, high temperature strength and antioxidant characteristics of higher performance, the service life is three times the clay graphite crucible.