Ohun elo ati igbekale ti ASTM A1045 Structural Steel Pipe

ASTM A1045 Igbekale Irin Pipeni gbogbo igba wulo si awọn ohun elo ti seamless, irin pipe.Paipu irin alailabawọn ti pin si GB8162 ati GB8163, eyiti o jẹ awọn iṣedede meji ti o wọpọ ni Ilu China.Sibẹsibẹ, ASTM A1045Igbekale Irin Pipeni GB8162 nikan, eyiti o jẹ ohun elo ti o wọpọ fun ṣiṣe ẹrọ.

ASTM A1045 paipu irin jẹ erogba alabọde ti o wọpọ ati paipu irin tempered pẹlu awọn ohun-ini ẹrọ ti o dara, lile lile ati irọrun lati kiraki lakoko pipa omi.Awọn ẹya kekere yẹ ki o parun ati ki o tutu, ati pe awọn ẹya nla yẹ ki o jẹ deede, ni akọkọ lo lati ṣe iṣelọpọ awọn ẹya gbigbe agbara giga, bii impeller turbine ati piston compressor.Ọpa, jia, agbeko, kokoro, ati bẹbẹ lọ.

ASTM1045 erogba, irin pipeni nipa 0.45% erogba, iwọn kekere ti manganese, ohun alumọni, ati bẹbẹ lọ, ati imi-ọjọ kekere kan ati akoonu irawọ owurọ ti paipu irin igbekalẹ erogba to gaju.

Ooru itọju otutu: normalizing 850, quenching 840, tempering 600. ASTM1045 irin ni a ga-didara erogba igbekale, irin pẹlu kekere líle ati ki o rọrun lati ge.A maa n lo mimu bi awọn awoṣe, awọn pinni, awọn ọwọn itọsọna, ati bẹbẹ lọ, ṣugbọn o gbọdọ jẹ itọju ooru.1. ASTM1045 irin jẹ oṣiṣẹ ti líle rẹ ba tobi ju HRC55 (to HRC62) lẹhin piparẹ ati ṣaaju ki o to tutu.Lile ti o ga julọ ni ohun elo iṣe jẹ HRC55 (pipapa igbohunsafẹfẹ giga-giga HRC58).2. Ilana itọju ooru ti carburizing ati quenching ko ni lo fun ASTM1045 irin.Awọn ẹya ti o pa ati iwọn otutu ni awọn ohun-ini ẹrọ ti o dara ati pe a lo ni lilo pupọ ni ọpọlọpọ awọn ẹya igbekale pataki, ni pataki awọn ọpa asopọ, awọn boluti, awọn jia ati awọn ọpa ti n ṣiṣẹ labẹ awọn ẹru yiyan.Sibẹsibẹ, líle dada jẹ kekere ati pe ko ni sooro.líle dada ti awọn ẹya le dara si nipa quenching ati tempering + dada quenching.Itọju Carburizing jẹ lilo ni gbogbogbo fun awọn ẹya ẹru iwuwo pẹlu resistance abrasion dada ati resistance abrasion mojuto, ati resistance abrasion rẹ ga ju ti quenching ati tempering + quenching dada.Akoonu erogba oju rẹ jẹ 0.8-1.2%, ati mojuto rẹ jẹ gbogbo 0.1-0.25% (0.35% ni awọn ọran pataki).Lẹhin itọju ooru, dada le gba líle ti o ga pupọ (HRC58-62), ati mojuto ni líle kekere ati ipadabọ ipa.Ti o ba ti lo ASTM1045 irin fun carburizing, lile ati brittle martensite yoo han ninu mojuto lẹhin quenching, padanu awọn anfani ti carburizing itọju.Ni lọwọlọwọ, akoonu erogba ti awọn ohun elo ti n gba ilana carburizing ko ga, ati pe agbara mojuto le de giga pupọ nipasẹ 0.30%, eyiti o ṣọwọn ninu ohun elo.0.35% ko tii ri awọn apẹẹrẹ eyikeyi, ati pe o ṣafihan wọn nikan ni awọn iwe-ọrọ.Awọn ilana ti quenching ati tempering + ga-igbohunsafẹfẹ dada quenching le ṣee lo, ati awọn yiya resistance ni die-die buru ju ti carburizing.Eto itọju ooru ti a ṣeduro fun irin 45 ti a sọ pato ni boṣewa GB/T699-1999 jẹ 850 ℃ normalizing, 840 ℃ quenching ati 600 ℃ tempering.Awọn ohun-ini ti o ṣaṣeyọri ni pe agbara ikore jẹ ≥ 355MPa.Agbara fifẹ ti irin 45 ti a sọ ni GB/T699-1999 boṣewa jẹ 600MPa, agbara ikore jẹ 355MPa, elongation jẹ 16%, idinku agbegbe jẹ 40%, ati agbara ipa jẹ 39J.

1b17ac95829d3f259b14451c18e9e3f
3b611195fffd4417fe3f823f024bcf2
6e69deb53ed4f5e99534a7ec4d7edfc

Akoko ifiweranṣẹ: Oṣu Kẹsan-24-2022