AWS E312-17 yog txhua txoj haujlwm thiab zoo ib yam li 312-16 tab sis -17 txheej muaj ntau silica thiab tsawg titani-um tsim cov nyhuv "Spray-Arc" thaum siv rau kab rov tav fillet welds.
Kev faib tawm:
AWS A5.4 E312-17
ISO 3581-A E 29 9 R 1 2
Kev piav qhia dav dav
Lub rutile-basic siab CrNi-alloyed tag nrho txoj hauj lwm electrode
Zoo heev rau kev kho welding
Tshwj xeeb tshaj yog tsim rau steels nyuaj rau weld, xws li armor daim hlau, austenitic Mn-steels thiab siab C-steels
Weldability zoo heev thiab nws tus kheej tso slag
Weldable ntawm AC thiab DC + polarity
Hom tam sim no: DC / AC +
Chemical Composition ntawm Inweld 312-17
| Fe | C | Cr | Ni | Mo | Mn | Si | P | S | N | Cu |
| Tshuav | 0.15 | 28.0 Nws | 8.0 ib | 0.75 ib | 0.5-2.5 hli | 0.90 ib | 0.04 ib | 0.03 ib | --- | 0.75 ib |
| -32.0 Nws | -10.5 |
Cov nqi ib leeg yog qhov siab tshaj plaws tshwj tsis yog tias tau teev tseg.
Kev piav qhia thiab kev siv
AWS E312-17 yog txhua txoj haujlwm thiab zoo ib yam li 312-16 tab sis -17 txheej muaj silica ntau dua thiab tsawg dua titanium tsim cov nyhuv "Spray-Arc" thaum siv rau kab rov tav fillet welds.Qhov no kuj tsim ib qho kev sib txuas nrog qhov zoo nkauj ripple uas yog tiaj tus rau concave.312-17 muaj qhov qeeb qeeb qeeb kom nws tuav tau zoo dua thaum siv cov txheej txheem rub.Kev xaiv zoo heev ntawm cov hlau nyuaj-rau-welding xws li cua-hardening hlau, nruab nrab thiab siab carbon steels.Lub zoo meej electrode siv qhov twg lub hauv paus hlau yog ib qho tsis paub qib ntawm hlau.Haum rau ntau daim ntawv thov sib txawv uas muaj manganese-hardening steel, armor steel, caij nplooj ntoos hlav steel, rail hlau, npib tsib xee clad steel, cuab yeej & tuag steel thiab aircraft steel.Feem ntau siv los ua ib qho hnav-tiv taus tsim thiab "buffer" txheej hauv cov ntawv thov nyuaj.Ua haujlwm hnyav txog li 200 Brinell.312-17 muaj qhov siab tshaj plaws tensile thiab yield zog ntawm tus qauv stainless hlau coated electrodes (duplex stainless tsis suav nrog).
Pom zoo Parameters
SMAW (DCEP - Electrode +)
| Hlau Dia | Amperage |
| 3/32 " | 50-80 |
| 1/8 " | 7-110 |
| 5/32" | 100-140 Nws |
