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In this paper, the cold rolling process of high magnetic induction oriented silicon steel 27QG090 is explored and studied with the cold rolling testing system of pilot scale test platform as well as the microstructure and macroscopic XRD texture of samples after cold rolling in laboratory are analyzed with the Zeiss microscope and X-ray diffractometer. The study results showed that its microstructure after cold rolling with different reduction ratios was fibrous that elongates along the rolling direction and shear bands in the uneven deformation zone could be observed. Its texture after cold rolling in laboratory was mainly the α texture and a little {001}<110> rotated cubic texture as well as cold rolling specifications preferred 0.27 mm and 0.23 mm. The macro texture of cold rolled sheet for industrial trial production consists of α texture and a small amount of rotated cubic textures, which mainly concentrates in {114}<110> and {115}<110> textures so that the microstructure and texture are consistent with those of cold rolling in laboratory.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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