42crmo Irin pipe

Apejuwe kukuru:

Sipesifikesonu iṣelọpọ:

Lode opin ti irin pipe 20-426

Irin paipu odi sisanra ti 20-426

Ifihan ọja:

Idi ti paipu irin alailẹgbẹ 42crmo: irin pataki fun Afara jẹ “42crmo”, irin pataki fun girder ọkọ ayọkẹlẹ jẹ “42CRmo”, irin pataki fun ọkọ oju omi titẹ jẹ “42Crmo”.Iru irin yii ni lati gbẹkẹle atunṣe akoonu erogba (C) lati mu awọn ohun-ini ẹrọ ti irin, nitorina, ni ibamu si akoonu erogba ti giga ati kekere, iru irin yii le pin si: kekere erogba irin - erogba. akoonu jẹ gbogbogbo kere ju 0.25%, bii 10, 20 irin, ati bẹbẹ lọ;Irin erogba alabọde – akoonu erogba ni gbogbogbo laarin 0.25 ~ 0.60%, bii 35, 45 irin, bblIru irin bẹẹ kii ṣe deede lo lati ṣe awọn paipu irin.

Sipesifikesonu ilana:

Gbona ṣiṣẹ sipesifikesonu

Alapapo otutu 1150 ~ 1200C, ti o bere otutu 1130 ~ 1180 °C, opin otutu> 850°C, φ> 50mm, o lọra itutu.

Normalizing sipesifikesonu

Normalizing otutu 850 ~ 900 ° C, jade ti lọla air tutu.

Ga otutu tempering sipesifikesonu

Iwọn otutu otutu 680 ~ 700 ° C, jade kuro ninu afẹfẹ adiro tutu.

Sipesifikesonu fun quenching ati tempering

Preheating otutu 680 ~ 700 ° C, quenching otutu 840 ~ 880 ° C, epo itutu, tempering otutu 580 ° C, omi itutu tabi epo itutu, líle ≤217HBW.

Sipesifikesonu fun líle ati toughing labẹ – otutu quenching

Pipa otutu 900°C, otutu otutu 560°C, lile (37±1) HRC

Sipesifikesonu fun fifa irọbi líle ati tempering

Quenching otutu 900°C, tempering otutu 150 ~ 180°C, líle 54 ~ 60HRC.