Puas yog 630 stainless hlau sib nqus?
Tso lus
Yog tias koj tab tom nrhiav 630 stainless hlau (tseem hu ua 17-4PH lossis UNS S17400) rau aerospace, roj thiab roj, pwm tsim, lossis cov khoom siv tshuab ua kom muaj zog, cov lus nug feem ntau yog: Puas yog 630 stainless hlau sib nqus? Nws cov hlau nplaum puas cuam tshuam rau nws qhov kev ua tau zoo lossis ua raws li cov qauv tsim nyog?
Kab lus no yuav piav qhia txog cov khoom sib nqus, tus nqi, qhov zoo, thiab kev yuav khoom ntawm 630 stainless hlau los ntawm kev xav ntawm tus kws tshaj lij kev muag khoom.
Dab tsi yog630 stainless hlau (17-4PH)?
630 stainless hlau yog nag lossis daus -hardening martensitic stainless hlau uas muaj chromium, npib tsib xee, thiab tooj liab. Nws nta siab zog thiab hardness, zoo corrosion kuj, thiab zoo heev dimension stability tom qab kev kho cua sov. Cov ntaub ntawv muab khoom muaj xws li daim hlau thiab cov ntawv, puag ncig thiab tiaj tus, forgings, thiab raj.
Puas yog 630 Stainless Hlau Sib Nqus?
Yog lawm, stainless hlau 630 (17-4 PH) yog hlau nplaum vim tias nws yog martensitic stainless hlau, txhais tau tias nws muaj cov qauv siv lead ua teb rau cov hlau nplaum, txawm tias nws lub zog sib nqus hloov nrog kev kho cua sov, ua kom sib nqus ntau dua tom qab kev laus. Thaum qee cov hlau tsis muaj hlau tsis muaj hlau nplaum (xws li austenitic qib 304/316), 17-4 PH muaj nuj nqis rau nws cov khoom sib nqus thiab cov khoom sib nqus, ua rau nws tsim nyog rau kev siv cov hlau nplaum siv.
| Qhov xwm txheej | Sib nqus cwj pwm |
|---|---|
| Kev daws teeb meem Annealed (A) | Me ntsis sib nqus / tsis muaj zog teb |
| Hnub nyoog (H900, H1025, H1150) | Nruab nrab kom muaj zog sib nqus |
| Hauv - kev pabcuam tom qab machining | Sib nqus (vim nrog lub siab kawg) |
Puas yog cov hlau nplaum ntawm 630 stainless hlau cuam tshuam nws cov kev tiv thaiv corrosion?
630 stainless hlau (17-4PH) yog martensitic nag lossis daus-hardening stainless hlau thiab yog inherently sib nqus. Txawm li cas los xij, nws qhov kev tiv thaiv corrosion feem ntau yog nyob ntawm cov ntsiab lus chromium (kwv yees li 15-17.5%) thiab muaj peev xwm tsim cov yeeb yaj kiab passivation; magnetism tsis ncaj qha cuam tshuam rau corrosion kuj. Txawm li cas los xij, nyob hauv qhov ntsuas kub ntawm qhov ntsuas kub (450-850 degree) tuaj yeem ua rau nag lossis daus ntawm Cr₂₃C₆, ua rau chromium depletion ntawm cov ciam teb nplej thiab txo cov corrosion kuj, uas tsis cuam tshuam rau cov hlau nplaum.
Puas yog 630 stainless hlau muaj zog dua 316 stainless hlau?
Yog; Nyob rau hauv tib lub sijhawm, lub zog tawm los ntawm 630 tom qab nag lossis daus hardening (xws li H900) tuaj yeem ncav cuag 1275 MPa, uas yog qhov siab dua li ntawm 170-205 MPa ntawm 316. Lub zog tensile kuj yog ntau dua ob npaug. Yog li, 630 yog qhov muaj zog ntau dua hauv cov ntawv thov uas xav tau lub zog siab.
Dab tsi yog qhov kev kho cua sov zoo rau 630 stainless hlau?
Kev kho cua sov zoo feem ntau suav nrog kev daws teeb meem ntawm 1040 ± 10℃tom qab dej quenching, thiab tom qab ntawd laus ntawm 480℃rau 4 teev nrog cua txias (H900 mob) kom ua tiav qhov sib npaug ntawm lub zog thiab tawv. Yog tias yuav tsum muaj qhov hnyav dua, qhov kub ntawm qhov kev laus tuaj yeem txo qis rau 450℃lossis lub sijhawm laus tuaj yeem txuas ntxiv, tab sis nws yuav tsum raug zam kom tsis pub dhau 620℃txhawm rau tiv thaiv sigma theem los nag los ntawm kev puas tsuaj rau cov khoom.
630 stainless hlau puas tuaj yeem siv rau hauv kev lag luam aerospace?
Yog; vim nws lub zog muaj zog (yield zog tuaj yeem ncav cuag ntau dua lossis sib npaug ntawm 1275 MPa hauv H900 tus mob) thiab kev ua haujlwm qaug zog zoo, 630 feem ntau yog siv rau hauv kev siv aerospace rau shafts, fasteners, gears, thiab cov khoom siv. Txawm li cas los xij, cov txheej txheem kev kho cua sov yuav tsum tau tswj nruj me ntsis kom tsis txhob muaj nag lossis daus ntawm sigma, uas tuaj yeem txo qhov toughness thiab corrosion kuj.
Yog tias koj muaj qhov yuav tsum tau ua rau 630 stainless hlau, peb txais tos koj xaj. GNEE muaj cov khoom muag loj ntawm cov khoom nrov rau koj xaiv. Nws tuaj yeem ua tiav rau hauv ntau hom khoom siv, nrog rau daim hlau, coils, raj, tuav, xov hlau, thiab lwm yam. Rau cov ncauj lus kom ntxaws txog cov tshuaj lom neeg thiab cov qauv dawb, thov hu rau peb lub Hoobkas tam sim ntawd. Peb muab cov nqi sib tw thiab kev pabcuam zoo heev.Email:info@gneestainless.com
