AWS E312-17 yog txhua txoj haujlwm thiab zoo ib yam li 312-16 tab sis -17 txheej muaj ntau silica thiab tsawg dua titani-um tsim cov nyhuv "Spray-Arc" thaum siv rau ntawm kab rov tav fillet welds.
Kev faib tawm:
AWS A5.4 E312-17
ISO 3581-A E 29 9 R 1 2
COV LUS QHIA TXOG
Ib qho rutile-basic high CrNi-alloyed txhua qhov chaw electrode
Zoo heev rau kev kho vuam
Tsim tshwj xeeb rau cov hlau uas nyuaj rau vuam, xws li cov phaj hlau tiv thaiv, austenitic Mn-steels thiab cov hlau C siab
Kev vuam zoo heev thiab kev tso tawm slag tus kheej
Weldable ntawm AC thiab DC + polarity
Hom tam sim no: DC/AC+
Cov Tshuaj Lom Zem ntawm Inweld 312-17
| Fe | C | Cr | Ni | Mo | Mn | Si | P | S | N | Cu |
| Qhov Nyiaj Tshuav | 0.15 | 28.0 | 8.0 | 0.75 | 0.5-2.5 | 0.90 | 0.04 | 0.03 | --- | 0.75 |
| -32.0 | -10.5 |
Cov nqi ib leeg yog qhov siab tshaj plaws tshwj tsis yog tias tau teev tseg lwm yam.
Kev piav qhia thiab daim ntawv thov
AWS E312-17 yog txhua txoj haujlwm thiab zoo ib yam li 312-16 tab sis -17 txheej muaj ntau silica thiab tsawg dua titanium tsim cov nyhuv "Spray-Arc" thaum siv rau ntawm kab rov tav fillet welds. Qhov no kuj tsim cov weld deposit nrog cov ripple zoo nkauj uas yog ntau tiaj tus rau concave. 312-17 muaj qeeb qeeb khov slag muab nws cov yam ntxwv zoo dua thaum siv cov txheej txheem rub. Kev xaiv zoo heev rau cov hlau nyuaj-rau-weld xws li cua-hardening hlau, nruab nrab thiab siab carbon hlau. Lub electrode zoo meej siv qhov twg lub hauv paus hlau yog qib tsis paub ntawm cov hlau. Haum rau ntau yam kev siv sib txawv uas muaj manganese-hardening hlau, armor hlau, caij nplooj ntoos hlav hlau, tsheb ciav hlau hlau, nickel clad hlau, cuab yeej & tuag hlau thiab dav hlau hlau. Feem ntau siv ua hnav-resistant build-up thiab "buffer" txheej hauv cov ntawv thov tawv-facing. Ua haujlwm hardens txog li 200 Brinell. 312-17 muaj lub zog tensile thiab yield siab tshaj plaws ntawm cov qauv stainless hlau coated electrodes (duplex stainless tsis suav nrog).
Cov Kev Ntsuas Pom Zoo
SMAW (DCEP - Electrode+)
| Txoj kab uas hla ntawm hlau | Amperage |
| 3/32” | 50-80 |
| 1/8” | 7-110 |
| 5/32” | 100-140 |
