Five-Point Type B Test Block of Penetration

Applications & Features of Five-point B type Block

• Penetration testing PT can detect surface defects of non-magnetic materials, providing a supplementary means for magnetic particle testing. Penetration testing method, which involves using a liquid dye on the surface of the test material and keeping it on the surface for a predetermined period of time. The dye can be a colored liquid that can be recognized under normal light, or a yellow/green fluorescent liquid that requires special light to appear. This liquid dye enters the cracks on the surface opening of the material due to capillary action. Capillary action always occurs during the retention of the dye until excess dye is completely washed away. At this point, a certain imaging agent is applied to the surface of the material being tested, penetrating into the cracks and coloring them, thereby revealing. Qualified testing personnel can analyze the visible traces. Penetration testing can be widely used to detect surface opening defects in most non absorbent materials, such as steel, non-ferrous metals, ceramics, and plastics. For complex shaped defects, it can also be comprehensively tested in one go.

  
  

• Our company has produced aluminum alloy A-type test blocks, three-point B-type test blocks, and five point B-type test blocks in accordance with the requirements of JB/T6064-2015 and NB/T47013-2015 standards. The crack lines of the test block are clear and visually displayed, which can accurately test the ability of penetrant testing agents and penetrant testing processes to detect small defects.

  
  

Dimension of  Five-point B type test block

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