Gas Stove Burner
The burner is the most important part of a gas stove, and there are many types. A properly designed burner can greatly improve the thermal efficiency of the stove and achieve the purpose of energy saving. The stove can be divided into two parts: the stove base and the fire cover.
The base of the burner is generally made of brass alloy or aluminum alloy casting, and a small part is made of stainless steel or cast iron. However, stainless steel is prone to brittleness during the process of sudden cooling and heating, while cast iron has good oxidation resistance. Weak, so they are not good burner materials. Generally, the most controversial ones are brass burners and aluminum alloy burners.
Brass material is an alloy of pure copper and zinc. The melting point varies according to the content of copper and zinc. Generally, the melting point of brass materials above H62 (that is, containing 62% copper and the remaining content is zinc) is above 930°C. Pure brass materials have different melting points. The melting point of aluminum is 660.37°C, so I think most of the current rumors on the Internet are that brass fire caps are better than aluminum alloy fire caps. They say that copper stove heads are not easy to deform, have a high melting point, and are corrosion-resistant. This is not the case. of.
The melting point of pure aluminum is indeed much lower than that of brass, but why do many big brands now use aluminum alloy burner bases? For example, Kexin gas stove manufacturer produces and sells stoves, Kexinnuo and other famous brand products. First of all, the burner base will not be burned by the flame and generate too much heat. We all know that the burner base plays a role in evenly distributing gas and supporting the fire cover above. And although the melting point of pure aluminum is low, its alloy material is not necessarily the same. The melting point of aluminum-manganese alloy is around 700°C, and the melting point of silicon-aluminum alloy is lower than 800°C, so it is not a bad idea to use these alloy materials on the burner base. .
What's more, during the oxidation process, aluminum will produce a dense oxide film on the outer surface. The melting point of this oxide is as high as 2000 degrees Celsius, which prevents continued oxidation. Manganese or silicon increases the melting point and stiffness of the aluminum alloy, and the aluminum alloy can also compensate for the Brass does not have the characteristics of toughness and low coefficient of thermal expansion and contraction, and the surface can be bright for a long time. It will not turn black like brass after being burned for a period of time. Of course, the brass burner head also has a black matt surface and is durable. The high-temperature porcelain film coating plays a role in preventing the appearance of the burner, so it is wrong to simply say that the aluminum alloy burner head is easy to deform.
We can see that both aluminum alloy and brass are excellent materials for stove heads. They cannot be absolutely denied or affirmed. We still have to make conclusions based on different styles.
