Dab tsi yog cov txheej txheem tseem ceeb ntawm 15crmo seamless steel yeeb nkab?
Kub dov lossis cov txheej txheem kos duab Txias nqus kos duab txhim kho kev puas tsuaj los ntawm kev deformation txias, thiab cov txheej txheem yog kub dov lub billet → phosphating → kho kom sov → kev kho cua sov → kev kho cua sov → Kev Kho Mob Kub. Lub ntsiab tseem ceeb tswj cov ntsiab lus yog qhov kub perforation (1150 degree) thiab qhov kawg rolling kub ntau dua lossis sib npaug rau 850℃kom zam dhau grainening.
Cov txheej txheem kev kho cua sov li cas ntawm 15crmo steel yeeb nkab?
Dab tsi (900℃~ 930 degree) + tempering (620℃~ 650 degree) yuav tsum ua. Li cas los hloov cov nplej, thiab tempering tshem tawm kev ntxhov siab thiab txhim kho kev nyuaj. Thaum lub phab ntsa tuab yog ntau dua 30mm, nws yog qhov tsim nyog yuav tsum tau cua sov hauv ntu kom tiv thaiv deformation. Kev kho tshav kub tom qab Weld (PWHT) kub tau sib xws nrog Tempering (620℃~ 650 degree), thiab rwb thaiv tsev lub sij hawm yog suav li 2.5min / hli.
Yuav ua li cas nrog Weld ntawm 15crmo welded steel yeeb nkab?
Submerged arc vuam (pom) los yog tungsten inert roj vuam (gtaw) yog siv, thiab cov vuam cov khoom yog R307 (E5515-B2). Preheat 250 Qib ~ 300℃ua ntej vuam, kub siab yog tsawg dua lossis sib npaug nrog 300 tawm tsam kub, thiab dehydrogenation kub yog ua tam sim ntawd tom qab vuam (300℃× 1h). Pwhat yuav tsum tau ua thaum kawg kom tsis txhob embrittlement ntawm weld cheeb tsam. Tus weld xav tau 100% kev xeem tshuab (RT) lossis ultrasonic kuaj (U).
Dab tsi yog qhov yuav tsum tau zoo rau 15crmo steel kav?
Qhov saum npoo yuav tsum muaj qhov tsis xws luag xws li cov kab nrib pleb, quav, thiab nti, thiab khawb me ntsis nrog qhov tob tsawg dua lossis sib npaug. Cov nplai oxide nyob rau sab hauv thiab sab nraud phab ntsa yuav tsum tau sandblasted lossis pickled tshem tawm. Cov kav dej kub yuav tsum tau tua cov peed peed ntawm phab ntsa sab hauv kom txo qis ntawm oxide nplai thaum lub sijhawm ua haujlwm. Lub xeev tus me nyuam feem ntau sandblasted tom qab kev kho cua sov, thiab tiv thaiv cov roj xeb tuaj yeem siv rau cov cai tshwj xeeb.
Yuav ua li cas tswj cov qhov tseeb ntawm 15Cro steel kav?
Cov txheej txheem hla kev ua kom ntev nrog GB / T 17395 txheem: kub dov raje ± 0.25%, txias kos cov raj ± 0.2 hli. Phab Ntsa Thickness kam kam rau: kub dov ± 10%, txias drawn ± 5%. Ovrality tsawg dua los yog sib npaug rau 80% ntawm cov txheej txheem hla kev thev taus. Daim ntawv thov tseem ceeb (xws li cov raj boiles) yuav tsum tau 100% kev sim ntsuas tshiab (thiab) kom ntseeg tau cov phab ntsa tuab.
