U-Rob Koltz no-Dave Meyer baxoxa ngezici ze-ferritic (magnetic) kanye ne-austenitic (non-magnetic) zezinsimbi ezingenasici ezishiselwe.Izithombe ze-Getty
Umbuzo: Ngishisela ithangi elenziwe ngensimbi engagqwali engu-316, elingenazibuthe.Ngiqale ukushisela amathangi amanzi ngocingo lwe-ER316L futhi ngathola ukuthi amashisela anozibuthe.Ngabe kukhona okungalungile engikwenzayo?
IMPENDULO: Cishe akukho okumele ukhathazeke ngakho.Kuyinto evamile ukuthi amashidi enziwe nge-ER316L ahehe uzibuthe, futhi kuvame kakhulu ukuthi amashidi namashidi agoqiwe angu-316 angahehi uzibuthe.
Ama-alloys e-iron akhona ngezigaba eziningana ezihlukene kuye ngokuthi izinga lokushisa kanye nezinga le-alloying, okusho ukuthi ama-athomu ensimbi ahlelwa ngendlela ehlukile.Izigaba ezimbili ezivame kakhulu i-austenite ne-ferrite.I-Austenite ayiyona i-magnetic kuyilapho i-ferrite inguzibuthe.
Ku-carbon steel evamile, i-austenite iyisigaba esikhona kuphela emazingeni okushisa aphezulu, futhi njengoba insimbi iphola, i-austenite ishintsha ibe yi-ferrite.Ngakho-ke, ekamelweni lokushisa, i-carbon steel iyimagnetic.
Amamaki amaningana ensimbi engagqwali, okuhlanganisa i-304 ne-316, abizwa ngokuthi ama-austenitic stainless steels ngoba isigaba sawo esiyinhloko siyi-austenite ekamelweni lokushisa.Lezi zinsimbi ezingenasici ziqina zibe yi-ferrite futhi ziguqule zibe i-austenite uma zipholile.Amapuleti ensimbi engagqwali ye-Austenitic kanye namashidi aqhutshwa imisebenzi yokupholisa nokugingqika elawulwayo, ngokuvamile eqinisekisa ukuthi yonke i-ferrite yenziwe i-austenite.
Maphakathi nekhulu lama-20, kwatholakala ukuthi lapho Welding austenitic engagqwali steels, ukuba khona ezinye ferrite ku weld metal kuvimbela microcracking (ukuqhekeka) okungenzeka lapho insimbi filler kuyinto austenitic ngokuphelele. insimbi engagqwali welds kungaba futhi ukukala izinga ukukhangwa kazibuthe.
I-316 inezinhlelo zokusebenza lapho ukunciphisa amandla kazibuthe e-weld kubalulekile, kodwa lokhu akuvamile ukuthi kudingeke emathangeni.Ngithemba ukuthi ungaqhubeka nokunamathisela ngaphandle kokukhathazeka.
I-WELDER, eyake yabizwa ngokuthi i-Practical Welding Today, ibonisa abantu bangempela abenza imikhiqizo esiyisebenzisayo nesisebenza ngayo nsuku zonke.Lo magazini ususebenzele umphakathi wokushisela eNyakatho Melika iminyaka engaphezu kwengu-20.
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