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According to the use requirements of prefabricated steel structure residence, the 420 MPa grade high-strength weather-resistant anti-seismic special hot-rolled H beam with thick gauge is developed independently with the peritectic steel design of microalloy composition system of low carbon, copper and nickel as well as near-net-shape casting technology of beam blank and universal rolling technology of section steel, which is mainly applied for stand column of frame structure for steel structure residence. The subcracks and intermediate cracks inside flange of ingot blank as well as surface defects of finished product caused by rolled-in scale during rolling process are eliminated through optimizing the continuous casting and rolling processes. All the mechanical properties of finished product could satisfy the requirements of technical agreement as well as the dimension and surface quality could satisfy the requirements of standard GB/T 11263—2017 so that its stable bulk supply is realized.
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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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