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Commonly Used Metallographic Inspection Standards Metallographic inspection standards began to actively adopt international standards in the 1980s, and it was not until 2010 that they really began to participate in the formulation and revision of international standards in this field. At present, ... Read More
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Metallographic Inspection Helps Machinery Industry Metallographic inspection is to observe the internal structure of metal machinery parts through various metallographic means, and conduct qualitative, semi-quantitative or quantitative inspections on grain size, shape, type, microstructure, relative ... Read More
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Metallographic Inspection and Evaluation of Quenched and Tempered Structure High-strength bolts should ensure that they are fully austenitized during quenching, the quenched structure is uniform, and there is no undissolved ferrite and non-martensite structure. The metallographic inspection of the ... Read More
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Metallographic Inspection of Fastener Bolts after Quenching and Tempering High-strength bolts have good comprehensive mechanical properties and high toughness after quenching and tempering (quenching and high-temperature tempering). Commonly used steels are low-carbon and medium-carbon high-quality ... Read More
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Metallographic Sample Preparation Example The metallographic sample preparation example shared this time is EN-AW-5083 aluminum alloy sample. The three samples sent by the customer are cut into 30mm*30mm cuboids by iqualitrol iCut-460Z automatic precision cutting machine, two each for hardness ... Read More
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Annealing Treatment of Cold Heading Wire for Fasteners Annealing process control points: (1) Full annealing requires heating to 28 ℃ above Ac3, carbon steel should be 30-50 ℃ above Ac3, and alloy structural steel should be 50-80 ℃ above Ac3. (2) Spheroidizing annealing: medium carbon steel and low ... Read More
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Fundamental Parameters of Optics The following list includes the fundamental parameters that must be evaluated in optics: Field of View (FoV): total area that can be viewed by the lens and imaged onto the camera sensor. Working distance (WD): object to lens distance where the image is at its ... Read More
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The 24th China International Industry Fair China International Industry Fair (CIIF) is the longest-running national-level industrial event. Since its launch in 1999, CIIF has been staged in autumn annually in Shanghai for more than 20 sessions successfully. CIIF is dedicated to the promotion of ... Read More
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Determination and Control of Spheroidizing Annealing Structure of Low and Medium Carbon Steel For most fastener products (bolts, screws, studs, rivets, etc.), soft annealing or spheroidizing annealing is required. Spheroidizing annealing is a process method to obtain fine-grained (spherical) ... Read More
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Microstructure and Mechanical Properties of Titanium Alloys Microstructure of Titanium Alloys Titanium alloys have a variety of hot working processes and have very complex phase changes. There are many types of organizations, including dual-state organization, three-state organization, equiaxed ... Read More
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