Inkampani Shandong Weichuan Metal Prodducts Co., Ltd.

I-S355j2h iwaranti yomkhiqizi wamapayipi ensimbi engenamthungo

Incazelo emfushane:

I-S355J2 iwumkhiqizo wensimbi ojwayelekile waseYurophu ogoqelwe ngokushisayo. Ezinye izinto ezikuchungechunge olufanayo, njenge-s355jo, njll.


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Incazelo

I-S355J2 izothobela i-en10025-2:2004 (Izinga elidala (en10025:1990)

C: ≤0.22; Isimo: ≤0.55; UMn: ≤1,60; P: ≤0.025; S: ≤0.025; Usayizi: ≤0.55;

-20℃: ≥27.

(Mpa): ≤16mm: ≥355: 16—40: ≥345; 40—63: ≥335; 63—80: ≥325;

80—100: ≥315; 100—150: 295; 150—200: ≥285; 200—250: ≥275; 250—400:≥265.

S355j2h seamless steel pipe manufacturer warranty sales

Ukugoqa okushisayo, ukugingqika okulawulwayo, ukujwayelekile, njll.

I-S355jo iwumkhiqizo wensimbi ojwayelekile ogoqiwe wase-Europe ojwayelekile.

I-S355jo isebenzisa izinga le-en10025-2:2004 (Izinga elidala (en10025:1990)
Izinga lokushisa lokucisha lepayipi lensimbi elisezingeni eliphansi lingu-A3 + (30 ~ 50) ℃. Ngokuvamile, umkhawulo ophezulu uthathwa. Izinga lokushisa eliphakeme lokucisha lingasheshisa isivinini sokushisa sepayipi yensimbi enezinga lokushisa eliphansi, inciphise i-oxidation engaphezulu futhi ithuthukise ukusebenza kahle komsebenzi. Ukuze wenze i-homogenize ye-austenite ye-workpiece, isikhathi esanele sokubamba siyadingeka. Uma ukulayishwa kwesithando somlilo kukhulu, isikhathi sokubamba sidinga ukunwetshwa ngendlela efanele. Uma kungenjalo, ubulukhuni obanele bungenzeka ngenxa yokushisa okungalingani. Kodwa-ke, uma isikhathi sokubamba siside kakhulu, ukungalungi kokusanhlamvu okuqinile kanye ne-oxidation decarburization engathi sina kuzovela, okuzothinta ikhwalithi yokucisha. Sikholelwa ukuthi uma inani lokushaja likhulu kunalelo elishiwo kumadokhumenti enqubo, isikhathi sokushisisa nokubamba sidinga ukunwetshwa ngo-1/5.

Ngenxa yokuthi ukuqina kwepayipi lensimbi elisezingeni eliphansi liphansi, ingxube ye-brine engu-10% enezinga eliphezulu lokupholisa izosetshenziswa. I-workpiece kufanele icime kahle ngemva kokungena emanzini, kodwa ingabandi kahle. Uma ipayipi lensimbi engu-45# enembile lipholiswe kahle emanzini anosawoti, ucezu lokusebenza lungase luqhekeke, okubangelwa ukuguqulwa okusheshayo kwe-austenite ibe i-martensite lapho ucezu lokusebenza lupholiswe cishe ku-180 ℃, okuholela ekucindezelekeni okweqile kwesakhiwo. Ngakho-ke, lapho ipayipi lensimbi elicishiwe lezinga lokushisa eliphansi lipholiswa ngokushesha kule ndawo yokushisa, indlela yokupholisa kancane kufanele yamukelwe. Njengoba izinga lokushisa lokuphuma kwamanzi linzima ukuliqonda kahle, kufanele lisetshenziswe ngokuhlangenwe nakho. Lapho ukuzamazama kwe-workpiece emanzini kuyeka, amanzi okukhipha angakwazi ukupholisa umoya (ukupholisa amafutha kungcono). Ngaphezu kwalokho, i-workpiece kufanele ihambe kunokuba i-static lapho ingena emanzini, futhi yenza ukunyakaza okuvamile ngokusho kwejometri ye-workpiece. I-static cooling medium and static workpiece iholela ebukhuni nokucindezeleka okungalingani, okuholela ekuguquguqukeni okukhulu ngisho nokuqhekeka kocezu lokusebenza.

Ukuqina okucinyiwe kwepayipi lensimbi lezinga lokushisa eliphansi elicishiwe kanye nezingxenye ezithambile kufanele zifinyelele ku-hrc56 ~ 59, futhi ithuba lesigaba esikhulu liphansi, kodwa akumele libe ngaphansi kuno-hrc48. Uma kungenjalo, kusho ukuthi i-workpiece ayizange icinywe ngokuphelele, futhi isakhiwo se-sorbite noma ngisho ne-ferrite singase sivele esakhiweni. Lesi sakhiwo sisagcinwe ku-matrix ngokushisa, okungakwazi ukufeza inhloso yokucisha nokuthambisa.

Ukuze izinga lokushisa eliphezulu lezinga lokushisa eliphansi lepayipi lensimbi licime ngemva kokucisha, izinga lokushisa lokushisa ngokuvamile lingama-560 ~ 600 ℃, futhi imfuneko yobulukhuni i-hrc22 ~ 34. ububanzi bubanzi uma kuqhathaniswa. Kodwa-ke, uma umdwebo unezidingo zobulukhuni, izinga lokushisa lokushisa lizolungiswa ngokuvumelana nezidingo zomdwebo ukuze kuqinisekiswe ubulukhuni. Isibonelo, amanye amapayipi ensimbi e-shaft anezinga lokushisa eliphansi adinga amandla aphezulu nobulukhuni obuphezulu; Kwamanye amagiya nezingxenye ze-shaft ezinokhiye, izidingo zokuqina ziphansi ngoba kufanele zigaywe futhi zifakwe ngemuva kokucisha nokushisa. Isikhathi sokubamba sokushisa sincike ezidingweni zokuqina kanye nobukhulu bomsebenzi wokusebenza. Sikholelwa ukuthi ubulukhuni ngemva kokushisa buncike ekushiseni okushisayo futhi abuhlangene kangako nesikhathi sokushisa, kodwa kufanele bungene kabusha. Ngokuvamile, isikhathi sokubamba se-workpiece singaphezu kwehora elilodwa.


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