303Se Stainless Hlau (UNS S30323): Selenium-Txhim kho dawb-Machining Specialist

 

Dab tsi yog cov tshuaj muaj pes tsawg leeg, cov yam ntxwv tseem ceeb, thiab kev npaj siv 303Se stainless hlau?
303Se yog raws li tus qauv 303 austenitic muaj pes tsawg leeg (17-19% Cr, 8-10% Ni) tab sis suav nrog ntxiv ntawm 0.15-0.35% selenium, feem ntau nrog cov tshuaj sulfur cov ntsiab lus. Lub selenium hloov cov duab ntawm sulfide inclusions, ua rau lawv ntau globular. Cov yam ntxwv tseem ceeb no ua rau luv luv, nkig chips thiab ib qho zoo heev machined nto tiav. Nws npaj siv yog rau high-ceev, precision machining ntawm complex qhov chaw xws li fittings, fasteners, valve Cheebtsam, thiab me me mechanisms qhov tsawg kawg nkaus tom qab machining tiav yog xav tau.

Selenium tshwj xeeb txhim kho kev ua haujlwm zoo li cas piv rau tus qauv 303?
Selenium txhim kho nti tswj thiab nto tiav. Nyob rau hauv tus qauv 303, sulfur tsim elongated manganese sulfide inclusions uas tej zaum yuav ua rau stringy chips. Cov selenium- hloov kho cov kev suav nrog hauv 303Se txhawb kev ntxuav cov nti tawg, uas tiv thaiv "noog lub zes" nyob ib puag ncig cov cuab yeej hauv kev teeb tsa tsis siv neeg. Qhov no tso cai rau siab dua machining speeds thiab pub, txo downtime rau nti clearing, thiab ua ib tug smoother nto ncaj qha los ntawm lub cuab tam, feem ntau tshem tawm qhov yuav tsum tau rau ib tug thib ob polishing hauj lwm.

Hauv kev lag luam twg thiab rau qhov twg yog 303Se cov khoom uas nyiam?
303Se yog qhov nyiam nyob rau hauv kev lag luam uas xav tau siab - ntim ntau lawm ntawm precision- cov khoom siv nrog cov khoom zoo nkauj zoo nkauj. Qhov no suav nrog kev lag luam tsheb rau sensor vaj tse thiab cov khoom sib txuas, kev lag luam kav dej rau siab -kawg faucet internals thiab valve stems, hydraulic / pneumatic kev lag luam rau precision spools, thiab cov khoom siv dav dav rau cov khoom siv ua haujlwm zoo. Nws yog qhov tseem ceeb tshwj xeeb tshaj yog thaum ib feem xav tau ob qho tib si kev siv tshuab thiab ua tiav zoo rau kev sib khi los yog lub hom phiaj zoo nkauj.

Dab tsi yog kev lag luam tawm - tawm ntawm kev tiv thaiv corrosion thiab weldability?
Zoo li txhua yam dawb -machining stainless hlau, 303Se muaj kev lag luam tawm - tawm. Cov selenium thiab sulfur inclusions me ntsis txo corrosion kuj piv rau 304, ua rau nws tsis haum rau hnyav tshuaj los yog marine ib puag ncig. Ntau qhov tseem ceeb, nws tsis pom zoo rau kev vuam. Cov kev suav nrog ua rau muaj kev pheej hmoo ntawm kub tawg hauv qhov vuam thiab cua sov- thaj tsam cuam tshuam, uas tuaj yeem ua rau cov porosity thiab txo qis kev sib koom ua ke thiab corrosion kuj.

Tus kws kho tshuab lossis tus neeg yuav khoom yuav tsum paub meej dab tsi ua ntej muab 303Se?
Ua ntej, paub meej tias qib kev xaiv yog UNS S30323 los xyuas kom meej cov selenium ntxiv. Sib tham txog qhov yuav tsum tau ua kom tiav thiab kev ua haujlwm tau zoo nrog koj tus neeg muag khoom kom paub tseeb tias 303Se yog qhov kev xaiv zoo tshaj 303 lossis 303Cu. Xyuas kom tus neeg muag khoom muab cov khoom sib xws, homogeneous tsim nyog rau kev ua haujlwm siab - ceev. Thaum kawg, xyuas kom meej tias qhov kawg ntawm qhov kawg -siv ib puag ncig yog me me txaus rau nws cov peev xwm tiv thaiv corrosion, thiab tsis tas yuav tsum muaj vuam hauv daim ntawv thov zaum kawg.