Makin Karfe: S890Q/S890QL/S890QL1 . Matsayin aiwatarwa: BS EN10025-04
Girman: 5 ~ 300mm x 1500-4500 mm x L
| Kayan abu | inganci | C | Mn | Si | P | S |
| S890Q / S890QL/ S890QL1 HSLA karfe farantin karfe | / | ≤0.20 | ≤1.70 | ≤0.80 | ≤0.025 | ≤0.015 |
| L | ≤0.020 | ≤0.010 | ||||
| L1 | ≤0.020 | ≤0.010 |
| Kayan abu | Ƙarfin haɓaka σ0.2 MPa | Ƙarfin ƙarfi mai ƙarfi σb MPa | Tsawaita 5 % | V Tasiri Hanyoyi masu tsayi |
||
| ≥6-50 | ＞50-100 | ≥6-50 | ＞50-100 | |||
| S890Q | ≥890 | ≥870 | 900-1060 | ≥13 | -20℃ ≥30J | |
| S890QL | -40℃ ≥30J | |||||
| Saukewa: S890QL1 | -60℃ ≥30J | |||||
S890QL Quenched da Ƙarfe Tsarin Tsari
Zafafa-Kafa
Zazzabi mai zafi sama da 580 ° C yana yiwuwa. Dole ne a yi quenching na gaba da zafin rai bisa ga sharuɗɗan bayarwa.
Milling
Hakowa tare da cobalt-alloyed high-gudun karafa HSSCO. Gudun yanke ya kamata ya zama kusan 17 - 19 m/min. Idan an yi amfani da na'urorin HSS, saurin yanke ya kamata ya zama kusan 3 - 5 m /min.
Yankan harshen wuta
Zazzabi na kayan ya kamata ya zama aƙalla RT don yankan harshen wuta. Bugu da kari, ana ba da shawarar yanayin zafi mai zuwa don wasu kauri na faranti: Don kaurin faranti sama da 40mm, preheat zuwa 100 ° C kuma don kauri sama da 80mm, preheat zuwa 150°C.
Walda
S890QL karfe ya dace da duk hanyoyin walda na yanzu. Zazzabi na kayan yakamata ya zama aƙalla RT don waldawa. Bugu da kari, ana ba da shawarar yanayin zafi mai zuwa don wasu kaurin faranti:
20mm - 40mm: 75°C
Sama da 40mm: 100°C
60mm ko fiye: 150°C
Wadannan alamomi sune daidaitattun dabi'u kawai, bisa manufa, alamun SEW 088 ya kamata a bi.
Lokacin t 8/5 ya kamata ya kasance tsakanin 5 zuwa 25 s, ya danganta da fasahar walda da ake amfani da su. Ya kamata annealing danniya annealing ya zama dole ga gini dalilai, wannan ya kamata a yi a cikin zafin jiki kewayon 530C-580C.
