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Liquid penetration testing is used to check various opening defects on the surface of castings

Liquid penetration testing is used to check various opening defects on the surface of castings

2021-07-21 14:21:26.000

Liquid penetration testing is used to check various opening defects on the surface of castings, such as surface cracks, surface pinholes and other defects that are difficult to find with the naked eye. The commonly used penetrant inspection is color inspection, which is to wet or spray a colored (usually red) liquid (penetrant) with high penetrating ability on the surface of the casting.

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Since the horizontal continuous casting process can

Since the horizontal continuous casting process can

2021-07-21 14:20:56.000

In the machine tool manufacturing industry, horizontal continuous cast iron profiles are used to manufacture milling machines,

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Application analysis of cast iron profiles

Application analysis of cast iron profiles

2020-12-18 14:40:00.000

Since the horizontal continuous casting process can obtain a relatively dense matrix structure, the oil pressure resistance and air tightness of horizontal continuous casting profiles are higher than other engineering materials. It can be said that the use of horizontal continuous casting profiles to make hydraulic parts is an ideal material so far . In addition to high production rate and low production cost, it also has better machining performance than steel. This is because in the cutting process, the cutting resistance is reduced due to continuous chipping.

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Surface and internal quality inspection methods of castings

Surface and internal quality inspection methods of castings

2020-12-18 14:38:00.000

The inspection of castings mainly includes size inspection, visual inspection of appearance and surface, chemical composition analysis and mechanical performance test. For castings that require more important requirements or are prone to problems in the casting process, non-destructive testing is also required. It can be used for ductile iron castings. Non-destructive testing techniques for quality testing include liquid penetration testing, magnetic particle testing, eddy current testing, radiographic testing, ultrasonic testing, and vibration testing.

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