Ga iyara irin yika bar

M2 High Speed Steel (M2) is a tungsten-molybdenum high speed steel with a well balanced composition suitable for a wide variety of applications.  World wide, the M2 type is by far the most popular high speed steel having replaced T1 high speed in most applications because of its superior properties and relative economy.

Awọn ohun elo:Twist drills, taps, milling cutters, reamers, broaches, saws, and knives.

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OHUN ENIYAN KAN

AGBARA ỌRUN

· iwuwo: 0.294 lb/in3 (8138 kg/m3)

· Walẹ pato: 8.14

· Modulu ti Rirọ: 30 x 106 psi (207GPa)

· ẹrọ: 50-60% ti a 1% erogba, irin

Awọn ilana Itọju gbigbona

OLÁLÁ

Gbona: To minimize distortion and stresses in large or complex tools use a double preheat. Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1100°F (593°C) equalize, then heat to 1450-1550°F (788-843°C). For normal tools, use only the second temperature range as a single preheating treatment.

Iṣeduro (Oru Giga): Ooru ni kiakia lati preheat.
For Cutting Tools:
Ileru: 2200-2250°F (1204-1232°C)
Iyọ: 2175-2225°F (1191-1218°C)
Lati mu lile pọ si, lo iwọn otutu ti o kere julọ.
Lati mu líle gbigbona pọ si, lo iwọn otutu ti o ga julọ.
For punches, dies, and tools that require maximum
toughness without hot hardness:
Ileru: 2075-2175°F (1175-1191°C)
Iyọ: 2050-2150°F (1121-1177°C)

Pipa: Gaasi titẹ, epo gbona, tabi iyọ. Fun gaasi titẹ, iwọn piparẹ iyara si isalẹ 1000°F (538°C) ṣe pataki lati gba awọn ohun-ini ti o fẹ. Fun epo, pa a titi di dudu, ni iwọn 900 ° F (482°C), lẹhinna dara ni afẹfẹ ti o duro de 150 -125°F (66-51°C). Fun iyọ ti a tọju ni 1000-1100°F (538-593°C), dọgbadọgba, lẹhinna dara ni afẹfẹ simi si 150 -125°F (66-51°C).

Gbigbọn: Ibinu lẹsẹkẹsẹ lẹhin quenching. Iwọn iwọn otutu ti o wọpọ jẹ 1025-1050°F (552-566°C). Duro ni iwọn otutu fun wakati 2, lẹhinna afẹfẹ dara si iwọn otutu ibaramu. A nilo iwọn otutu meji. Fun awọn apakan agbelebu nla, ati ni pataki fun awọn ofo lati eyiti awọn irinṣẹ yoo ge nipasẹ okun waya EDM, iwọn otutu mẹta ni a gbaniyanju gidigidi.

ANEALING

Annealing gbọdọ ṣee ṣe lẹhin iṣẹ gbona ati ṣaaju ki o to tun-lile.

Ooru ni oṣuwọn ti ko kọja 400°F fun wakati kan (222°C fun wakati kan) si 1525-1550°F (829-843°C), ki o si mu ni iwọn otutu fun wakati 1 fun inch (25.4 mm) ti sisanra, wakati 2 o kere ju. Lẹhinna dara laiyara pẹlu ileru ni oṣuwọn ti ko kọja 50°F fun wakati kan (28°C fun wakati kan) si 1000°F (538°C). Tẹsiwaju itutu agbaiye si iwọn otutu ibaramu ninu ileru tabi ni afẹfẹ. Lile abajade yẹ ki o jẹ 248 HBW tabi isalẹ.