Qhov 7018 electrode yog ib qho ntawm feem ntau siv cov pas hlau vuam (smaw) electrodes, muaj txiaj ntsig rau nws cov hlau muaj zog, cov khoom siv me me nrog cov hlau me me - allloy steel. TusTam sim no yuav tsum khiav A 7018 electrodeNyob ntawm nws lub cheeb, tab sis lwm yam xws li kev sib koom ua ke tsim, puag ncig hlau kuj ua lub luag haujlwm. Hauv qab no yog cov ncauj lus kom ntxaws tawg ntawm cov kev xaiv tam sim no, nrog rau cov kev txiav txim siab tseem ceeb rau kev teeb tsa qhov tam sim no.
Cov Ntsiab Lus: Electrode Diam
Lub cheeb ntawm 7018 electrode yog qhov tseem ceeb tshaj plaws ntawm tam sim no. Duav hlau loj yuav tsum tau ua dua tshiab rau yaj kom zoo, thaum lub cev nqaij daim tawv me yuav tsum tau tsawg dua kom tsis txhob muaj kev kub ntxhov thiab hlawv los ntawm cov hlau hauv paus. Ntawm no yog tus qauv tam sim no yog rau ib txwm muaj 7018 diamiters:
| Lub cheeb tsam uas hla hluav taws xob (ntiv) | Lub cheeb tsam uas hla hluav taws xob (millimeters) | Tam sim no ntau yam (amperes) |
|---|---|---|
| 1/8" | 3.2 hli | 70 – 140 A |
| 5/32" | 4.0 hli | 110 – 210 A |
| 3/16" | 4.8 hli | 160 – 275 A |
| 1/4" | 6.4 hli | 250 – 350 A |
Cov nplhaib no yog cov lus qhia dav dav. Piv txwv li:
Ib qho 1/8 "(3.2 hli) 7018 electrode ua haujlwm zoo rau nyias rau nruab nrab {{} goose}
Ib tug 3/16 "(4.8 mm) electrode, siv rau thicker hlau (3/8" rau 1/2 "+), feem ntau ua tau zoo tshaj plaws ntawm 180-240 A.
Lwm yam cuam tshuam rau cov chaw tam sim no
Thaum lub cheeb ua uas lub taub yog thawj tam sim no raws li cov hloov no kom ntseeg tau tias muaj kev ruaj khov Arc, thiab Weld Bead Cov Qauv:
1. Base Hlau Thickness
Nyias luj(piv txwv li, 1/8 "tuab): siv qis kawg ntawm cov electrode txoj kev kub tam sim no kom tsis txhob kub. Rau 1/8" "Hlau, 70-100 Ib Tus Neeg Ruaj Ntseg
Tuab luj hlau(piv txwv li, 1/2 "+): Siv lub sab saud los ua kom tiav kom ua tiav. A 3/16" 7018 ntawm tuab cov hlau yuav xav tau 220-275 A.
2. Vuam Txoj Haujlwm
7018 tau cais raws li "txhua {{- txoj hauj lwm" hluav taws xob, lossis overhead vuam (piv rau cov kab rov tav (muab piv rau cov kab rov tav
Tiaj / Kab Rov tav: Siv tau cov ntau tam sim no rau txoj kab uas hla, raws li lub ntiajteb txawj nqus pab tswj lub pas dej weld.
Ntsug / Nyiaj Siv Ua Haujlwm: Txo tam sim no los ntawm 10-15% los tiv thaiv cov molt weld pas dej ntawm sagging lossis dripping. Rau ib tug 5/32 "7018 hauv txoj hauj lwm ntsug, 100-180 ib (hloov ntawm 110-210 a) zoo dua.
3. Arc Cwj Pwm
Qhov 7018 electrode muaj qhov tsawg- hydrogen flux txheej, uas yuav tsum tau aruaj khov, me ntsis lub zog arcTxhawm rau hlawv flux kom zoo thiab zam qhov porosity. Cov cim qhia tias tsis muaj tseeb muaj xws li:
Tsawg heev: Daim ARC SPUTTASS, nkag mus yog ntiav, thiab flux yuav tsis yaj tusyees (tawm ntawm slag uas yog qhov nyuaj tshem tawm).
Siab heev: ARC yog qhov tseem ceeb, lub pas dej Weld tseem loj heev (ua rau hlawv-
4. Polarity
Thaum tsis yog "qhov tam sim no", 7018 electrodes xav tauncaj qha tam sim no rov qab polarity (DCRP)(tseem hu ua DC electrode zoo, DC +). Siv DC ncaj polarity (DCSP) lossis AC tuaj yeem txo arc stability, txawm yog tam sim no} Yog li ntseeg tau tias koj lub tshuab yog teem rau DCRP.
Lub ntsiab
Qhov tam sim no xav tau los khiav ib 7018 electrode txiav txim siab los ntawm nws txoj kab uas hla, nrog txoj kev sib txawv li hauv qab no:
- 1/8 "(3.2 hli): 70-140 a
- 5/32 "(4.0 hli): 110-210 a
- 3/16 "(4.8 hli): 160-275 a
- 1/4 "(6.4 hli): 250-350 a
Kho raws li lub hauv paus ntawm cov hlau tuab (thicker=dua tam sim no), txoj hauj lwm (ntsug=tam sim no), thiab arc stability), thiab arc ruaj khov. Nco ntsoov pib nyob rau hauv nruab nrab ntawm ntau, xeem rau ntawm cov packing hlau, thiab tweak kom txog thaum arc yog qhov nkag mus yog qhov txaus, thiab cov weld hlaws lom zem.
