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What are the determinants of blind flange life?

2018-10-11 11:09:21   COMMENT:0 HITS:
  There are many factors affecting the service life of blind flange. Because of the high viscosity of material and poor chip breaking performance, it is easy to scratch the workpiece thread or break the edge of tap in the process of tapping with tap in France, which affects the processing efficiency and thread quality. In order to prolong the service life of taps and improve the quality of thread processing,

  In Steckel mill, the thermo-mechanical history of the whole length of the blind flange changes obviously, especially in the production of the blind flange, which will strongly affect the recrystallization degree, grain growth and precipitation of the finishing mill, and lead to drastic changes in the final microstructure and function of the whole length of the DN80 PN16 6 Inch Forged Stainless Steel Blind Flange. When grinding must maintain the original geometry of the front guide, it is best to use a tap shovel grinder for grinding. The best way to solve the problem is to customize the tap with a shorter base according to the specific requirements of the thread being processed.

  Use better tap material. The wear resistance and toughness of taps can be improved remarkably by adding special alloy elements into common high speed tool steels. Reasonable selection of cutting tool heat treatment methods to take into account the hardness and toughness of tap. Increase the tap angle properly. However, it should be noted that if the leading angle of the tap is too large, it is easy to cause the edge of the tap to collapse and the threads to be multi-edged. Titanium nitride coating on the surface of tap threads can significantly improve the wear resistance, heat resistance and lubricity of taps.

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