Ukuthengiswa kwewaranti yomkhiqizi wepayipi lensimbi ye-alloy engu-30CrMo
I-16Mn iyinsimbi yesakhiwo esine-alloy ephansi: okuqukethwe kwekhabhoni kungu-0.1% - 0.25%, futhi izakhi eziyinhloko ze-alloy manganese, i-silicon, i-vanadium, i-niobium ne-titanium yengezwa; Ingqikithi yayo ye-alloy ingaphansi kuka-3%. Ngokusho kwamandla, ihlukaniswe yaba amazinga amane: 300, 350, 400 kanye 450MPa. Ngokuyinhloko kukhona u-q295, Q345, Q390, Q420 kanye no-Q460 "Q" isiqalo esingusonhlamvukazi wesiShayina se-Pinyin segama elithi "Qu" esikhiqizayo, futhi inombolo elandelayo iyiphoyinti elincane lokukhiqiza lomkhiqizo (σ s) Izimpawu ezilandelayo zithi ihlukaniswe yaba u-a, B, C kanye no-d ngokusho kokuqukethwe kwezakhi zokungcola (isulfure ne-phosphorus) ensimbi kusukela phezulu kuya phansi kanye nokushintsha kwekhabhoni ne-manganese. Phakathi kwazo, izinsimbi zeBanga A no-B zivame ukubizwa nge-16Mn.
Ngokusho kwamandla, ihlukaniswe yaba amazinga amane: 300, 350, 400 kanye 450MPa.
Kukhona ikakhulukazi q295, Q345, Q390, Q420 kanye Q460.
16Mn ipayipi lensimbi engenamthungo
16Mn ipayipi lensimbi engenamthungo
Ipayipi lensimbi elingenamthungo elingu-16Mn liwuhlobo lwempahla. Ipayipi lensimbi elingenamthungo lalibizwa ngokuthi ipayipi lensimbi elingenamthungo.
Indlela yamanje yile: Q345B ipayipi lensimbi engenamthungo. Izinto ezifanayo yi-Q345C, Q345D ne-Q345E. Uphawu lwebanga lekhwalithi a, B, C, de lubonisa izidingo ezihlukene zokuhlolwa komthelela. Izinga lokushisa lokuhlola umthelela lingu-+20 ° 0 ° kuya ku-20 ° 40 ° ngokulandelana. I-16Mn iyimpahla yepayipi yensimbi engenamthungo.
I-ABCD ikhombisa izinga lekhwalithi Q235. Ibanga lekhwalithi lihlukaniswe ngamabanga amane A, B, C kanye no-D. ukusuka ku-a kuye ku-D kubonisa ikhwalithi ukusuka kokuphansi kuye phezulu.
Izidingo zamaleveli ekhwalithi ahlukene zimi kanje:
A - hlinzeka ngo-s, P, C, Mn, Si chemical composition kanye ne-Fu, FY δ 5 ( δ 10) , 1800 ukuhlolwa okugoba okubandayo kunganikezwa ngokuya ngezidingo zomthengi, kodwa awukho ukulawulwa kwamandla okunomthelela, kanye nokuqukethwe kwekhabhoni futhi okuqukethwe kwe-manganese akuthathwa njengezimo zokulethwa.
B - hlinzeka ngo-s, P, C, Mn, Si chemical composition kanye ne-Fu, FY δ 5 ( δ 10) , ukugoba okubandayo 180 'ukuhlolwa. Iphinde inikeze amandla anomthelela AK ≥ 27j kokuthi + 200C - ngaphezu kwezidingo zekilasi B, iphinde inikeze amandla omthelela AK ≥ 27j ku-00C.
C - ngaphezu kwezidingo zeleveli B, amandla omthelela AK ≥ 27j at - 200C nawo anikeziwe. E -- ngaphezu kwezidingo zeleveli B, amandla omthelela AK ≥ 27j ku - 400C nawo anikeziwe.
