I. Challenges faced by China's automobile casting inspection technology
From the point of view of modern casting at the end of the 20th century, the evaluation of casting quality has been given a new concept. The quality of castings should be considered in terms of product quality, process quality and casting design quality.
Product quality
The quality of the cast product includes surface quality, intrinsic quality and quality of use. The surface quality mainly includes: dimensional accuracy, shape tolerance, surface roughness, surface hardness, weight tolerance, lumen cleanliness and surface casting defects; internal quality mainly includes: chemical composition, metallographic structure, metallurgical defects, physics Mechanical properties, and the degree of reliability inside the casting (detected by non-destructive testing), in recent years, there are also grain size (number of eutectic groups), eutectic saturation, density, purity and continuity; the main quality of use: cutting Performance, welding performance, running performance, wear resistance, corrosion resistance, temperature resistance, working life and other working conditions, and its indicators are constantly improving.
This article was published in Metalworking, Thermal Processing, 2009, Issue 07
From the point of view of modern casting at the end of the 20th century, the evaluation of casting quality has been given a new concept. The quality of castings should be considered in terms of product quality, process quality and casting design quality.
Product quality
The quality of the cast product includes surface quality, intrinsic quality and quality of use. The surface quality mainly includes: dimensional accuracy, shape tolerance, surface roughness, surface hardness, weight tolerance, lumen cleanliness and surface casting defects; internal quality mainly includes: chemical composition, metallographic structure, metallurgical defects, physics Mechanical properties, and the degree of reliability inside the casting (detected by non-destructive testing), in recent years, there are also grain size (number of eutectic groups), eutectic saturation, density, purity and continuity; the main quality of use: cutting Performance, welding performance, running performance, wear resistance, corrosion resistance, temperature resistance, working life and other working conditions, and its indicators are constantly improving.
This article was published in Metalworking, Thermal Processing, 2009, Issue 07
Extruded Heat Sink,Extruded Aluminum Heatsink,Aluminium Heatsink Extrusion,Heatsink Extrusion Profiles
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