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, China has led the formulation and revision of three international standards:
1) ISO 16574:2015 "Determination of troostite content in high carbon steel wire rod", based on my country's YB/T 169 standard, for the first time converted Chinese standards into international standards;
2) ISO4969:2015 "Steel Macroscopic Etching Test Method", based on my country's GB/T 226 standard, revised ISO4969:1980 and incorporated the "electrolytic corrosion method", which has the advantages of saving time and acid, easy operation, safety, and wide application range;
3) ISO 3887:2017 "Steel Determination of Decarburization Depth", was revised simultaneously with GB/T 224-2008; now it is the new national standard GB/T 224-2019 "Determination of Decarburization Depth of Steel", which greatly improves the accuracy of measuring the depth of decarburization.
The release and implementation of the above three international standards have won the recognition of experts from the same field around the world, promoted China's successful inspection methods to international sharing, and will provide strong technical support for the development of domestic and international trade and technological exchanges.
Bright and Dark Field Industrial Inspection Microscope with UIS optical system and Max 500X
Standard Configuration:
| Specification | |||
| Eyepiece | Wide field WF10X(field number:Φ22mm) | ||
| Infinity plan achromatic objective | iMet-230 Equipped with bright field objectives |
PL L5X/0.12 (Work distance):26.1 mm | |
| PL L10X/0.25 (Work distance):20.2 mm | |||
| PL L20X/0.40 (Work distance):8.80 mm | |||
| PL L50X/0.70 (Work distance):3.68 mm | |||
| iMet-230BD Equipped with bright & dark field objectives |
PL L5X/0.12 BD (Work distance):8.05 mm | ||
| PL L10X/0.25 BD (Work distance):7.86mm | |||
| PL L20X/0.40 BD (Work distance):7.23mm | |||
| PL L50X/0.70 BD (Work distance):1.75mm | |||
| Eyepieces tube | Trinocular inclined 30˚, can be shot in 100% light flux. | ||
| Epi- illumination system | iMet-230 | 6V30W halogen and brightness enable control | |
| iMet-230BD | 12V50W halogen and brightness enable control | ||
| Integrated field diaphragm, aperture diaphragm and (Y,B,G, ground glass) switching device. Push-pull type analyzer and polarizer. | |||
| Focus system | Coaxial coarse/fine focus system, with coarse focus knob tension adjustable device, minimum division of fine focusing: 2μm. | ||
| Nosepiece | Quintuple (Backward ball bearing inner locating) | ||
| Working stage | Base overall size:300mmX240mm | ||
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Mechanical stage overall size:185mmX140mm moving range:Transersal :35mm Longitudinal:30mm |
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Contact Person: Mr. Raymond Chung
Tel: 86-13711988687
Fax: 86-769-22784276
| Factory Address:No. 88 Jiaolian Yiheng Rd, Wanjiang District, Dongguan, China, 523046 | |
| Sales office:Room 301, Building No.1, No. 2 Jiaolian Yiheng Rd, Wanjiang District, Dongguan, China, 523046 | |
| +86--13711988687 | |
| sales@iqualitrol.com | |
