30CrMo uamea paipa uamea

Fa'amatalaga Puupuu:

Fa'amatalaga o gaosiga:

O le lautele pito i fafo o le paipa uamea 20-426

Uamea mafiafia puipui paipa o 20-426

Fa'atomuaga o oloa:

① O numera e lua i le amataga o le numera uʻamea o loʻo faʻaalia ai le carbon content o le uamea, ma le averesi o le carbon content o ni nai afe, e pei o le 40Cr, 30CrMo alloy paipa uʻamea

② O elemene faʻafefiloi autu i le sila, sei vagana ai nisi elemene microalloying, e masani ona faʻaalia e le tele o pasene.Afai e itiiti ifo i le 1.5% le aofaʻi o mea faʻapipiʻi, naʻo le faʻailoga elemene e masani ona faailogaina i le numera uʻamea, ae le o le anotusi.Ae ui i lea, i tulaga faʻapitoa, e faigofie ona fenumiai, o le numera "1" e mafai ona makaina pe a uma le elemene elemene, e pei o le numera uʻamea "12CrMoV" ma le "12Cr1MoV", o le chromium anotusi o le muamua o le 0.4-0.6%, ma o le mea mulimuli e 0.9-1.2%.O isi mea uma e tutusa.A o le averesi elemene elemene anotusi ≥1.5%, ≥2.5%, ≥3.5%…… “, o le faailoga elemene e tatau ona faailoga pe a uma le anotusi, e mafai ona faaalia e pei 2, 3, 4…… Etc. Mo se faataitaiga, 18Cr2Ni4WA.

③ Alloy elemene e pei o le vanadium V, titanium Ti, alumini AL, boron B ma sese lalolagi RE i le uamea e aofia i elemene microalloying.E ui lava e maualalo tele le anotusi, e tatau lava ona makaina i luga o le numera uʻamea.Mo se faʻataʻitaʻiga, i le 20MnVB sila.Vanadium e 0.07-0.12% ma boron e 0.001-0.005%.

④ "A" e tatau ona faʻaopopo i le pito o le numera uʻamea o le uʻamea maualuga-maualuga e iloagofie ai mai le uʻamea maualuga maualuga.

⑤ Fa'atatau fa'apitoa fa'apipi'i u'amea fausaga, sila numera prefix (po'o suffix) fa'atusalia le fa'amoemoega o le fa'ailoga sila.Mo se faʻataʻitaʻiga, o le 30CrMnSi uamea faʻapitoa e faʻaaogaina mo faʻamau faʻailoga ua faʻaalia o le ML30CrMnSi.

Tekinolosi gaosiga:

1. Taavale vevela (extrusion seamless paipa uʻamea): lapotopoto faagaau avanoa → faamafanafana → perforating → tolu-maualuga taʻavale diagonal, taʻavale faifaipea po extrusion → aveese → sizing (po o le faaitiitia) → malulu → faʻasaʻo → hydrostatic suʻega (poʻo asiasiga) → maka → teuina

2. Toso malulu (taavale) paipa u'amea lamolemole: lapotopoto faagaau avanoa → faamafanafana → perforation → ulutala → annealing → pickling → suauu (palapala apamemea) → multi-pass ata malulu (taavale malulu) → paipa avanoa → vevela → fa'asa'o → su'ega hydrostatic (su'esu'ega) → fa'ailoga → teuina