Butterfly valve material identification method

Now due to the development of science and technology and the progress of materials science, the materials of butterfly valves are more and more diverse. When the user chooses the butterfly valve, the material is often a very important indicator for its consideration. So in the case of not relying on the manufacturer's instructions, how should the user identify the material of the butterfly valve?

1. Chemical and spectral analysis

The use of chemical analysis to determine the content of various elements in the butterfly valve material is a very old method, and this method can be said to be very reliable according to long-term use. The spectral analysis refers to the butterfly valve material will emit spectrum under high temperature and high energy excitation, so the use of spectral analysis can also determine the butterfly valve material.

2. Spark identification When polishing metal materials, sparks are often generated due to intense friction. The identification of butterfly valve material is based on this method, grinding it, and identifying the composition of its material by identifying the characteristics of its spark.

3. The butterfly valve sample is cut, and the content of various elements in the valve material can be distinguished from the color, grain and other characteristics on the cross section, but this method often requires a certain metal material manufacturing experience to do it.