Puas tau koj puas tau saib qhov kev ua haujlwm hauv av tsis ua haujlwm?
Nws pib nrog me ntsis corrosion. Ib qho xoob clamp. Ib qho kev sib txuas uas ib zaug dhau qhov kev sim siab tab sis tam sim no qhia 0.5 ohms ua 0.01. Ces ib tug xob laim hits, thiab qhov txuas tsis muaj zog vaporizes. Koj cov khoom siv? Fried. Koj substation? Offline. Koj lub koob npe nrov? Kev puas tsuaj. Kuv tau pom qhov xwm txheej tiag tiag ua si tawm ntawm cov chaw sib kis thiab cov chaw lag luam thoob plaws tebchaws. Tus neeg ua txhaum yuav luag ib yam: ib tug substandard sib koom ua ke ntawm grounding conductor thiab lub ntiaj teb electrode. Mechanical clamps thiab bolted kev sib txuas zoo zoo ntawm daim ntawv tab sis ua tsis tiav hauv daim teb. Lawv corrode, lawv loosen, thiab lawv qhia tawm tsam qhov twg yuav tsum tsis muaj. Yog vim li cas cov engineers paub txog xaiv tooj liab clad hlau rau grounding nrog exothermic welding. Nws tsis yog ib txoj kev zoo xwb; nws yog tib txoj kev mus tas li.
Dab tsi yog Copper Clad Steel thiab Vim Li Cas Nws Tseem Ceeb rau Grounding?
tooj liab clad hlau (CCS) yog raws nraim li nws suab: ib tug hlau core nrog ib tug metallurgically bonded tooj liab txheej txheej. Cov hlau muab lub zog tensile rau koj - qhov tseem ceeb thaum tsav cov pas nrig rau hauv cov av pob zeb lossis ncua ntev ntawm cov yees. Cov tooj liab muab tshwj xeeb hluav taws xob conductivity (feem ntau 40% IACS los yog siab dua) thiab unmatched corrosion kuj. Ua ke, lawv tsim ib tug neeg xyuas pib hauv av uas outlass ntshiab tooj liab nyob rau hauv ib puag ncig hnyav thiab raug nqi tsawg dua. Rau kev siv grounding, koj feem ntau pom CCS rods hauv diameters los ntawm 12.5 mm rau 25 mm, nrog tooj liab thickness xws li los ntawm 0.25 mm rau 0.50 mm (ASTM B227 qhia qhov loj me no). Cov tub ntxhais steel nqa cov khoom siv thauj khoom; txheej tooj liab nqa qhov tam sim no. Thiab thaum koj koom nrog CCS nrog exothermic welding, koj tau txais ib daim ntawv cog lus uas yog molecularly fused - tsis muaj huab cua sib txawv, tsis muaj galvanic corrosion, tsis muaj degradation dhau sijhawm.
Vim li cas Exothermic Vuam Beats Txhua Txoj Kev Koom Tes
Cia kuv ua blunt: mechanical clamps, crimping, thiab bolting tag nrho muaj qhov chaw hauv kev teeb tsa ib ntus, tab sis lawv tsis muaj kev lag luam nyob rau hauv ib qho kev ruaj ntseg hauv av. Ib tug clamp cia siab rau. Kev ntxhov siab ua rau lub sijhawm, tshwj xeeb tshaj yog nrog kub cycling. Crimping ua haujlwm tsuas yog tias lub cuab yeej zoo kawg nkaus calibrated thiab tus neeg teb xov tooj txawj. Bolting qhia txog cov hlau tsis sib xws, uas caw galvanic corrosion. Exothermic vuam, ntawm qhov tod tes, siv tshuaj tiv thaiv (aluminium hmoov thiab tooj liab oxide) los tsim molten tooj liab ntawm tshaj 2000 ° C. Qhov no molten tooj liab ntws mus rau hauv pwm, nyob ib ncig ntawm cov conductors thiab fuse lawv mus rau hauv ib leeg, homogenous sib koom ua ke. Qhov tshwm sim yog ib qho kev sib txuas nrog qis tsis kam tshaj cov conductors lawv tus kheej. Nws tsis tuaj yeem corrode, tsis tuaj yeem xoob, thiab tuaj yeem ua txhaum tam sim no mus txog 100 kA tsis poob. Kuv tus kheej tau sim cov pob qij txha ua 30 xyoo dhau los uas tseem ntsuas hauv qab 0.001 ohms ua.
Step-by-Step: Yuav Ua Li Cas Exothermic Vuam ntawm Copper Clad Steel
Koj tuaj yeem kawm cov txheej txheem no hauv ib tav su. Tab sis koj yuav tsum ua raws txhua kauj ruam precisely. Hla lub pwm ntxuav cov kauj ruam yuav ua rau koj muaj qhov ntxeem tau. Siv qhov tsis ncaj ncees lawm ntawm cov ntaub ntawv muab tub lim yuav ua rau koj tsis muaj zog weld. Nov yog cov txheej txheem uas kuv qhia rau kuv cov neeg ua haujlwm.
Kauj ruam 1: Npaj cov pwm thiab ntxuav cov neeg ua haujlwm
Tshem tag nrho cov av, roj, thiab oxidation ntawm tooj liab nto ntawm CCS. Siv txhuam txhuam-tsis txhob siv cov ntawv xuab zeb, uas tuaj yeem embed abrasive hais. Rau CCS rods, txhuam qhov chaw uas lub vuam yuav tsim. Tom qab ntawd ntxuav cov pwm kab noj hniav nrog txhuam txhuam kom tshem tawm cov khoom seem ntawm cov welds yav dhau los. Xyuas kom cov pwm halves kaw nruj nreem. Ib qhov sib txawv 0.5 mm yuav ua rau molten tooj liab to.
Kauj ruam 2: Xaiv qhov raug CCS txoj kab uas hla thiab tooj liab Thickness
Qhov no yog qhov uas ntau tus neeg mus yuam kev. Rau ib tug raug substation av kab sib chaws, IEEE 80 pom zoo kom tsawg kawg yog tus neeg xyuas pib hla ntu raws li qhov ua txhaum tam sim no thiab lub sijhawm. A 12.5 mm txoj kab uas hla CCS pas nrig nrog 0.5 mm tooj liab thickness yuav lis txog 10 kA rau 1 thib ob. Rau cov dej ntws siab dua, nce mus rau 16 mm lub 20 mm txoj kab. Lub thickness tooj liab tseem ceeb dua rau corrosion tiv thaiv hauv av txhoj puab heev. Yog tias koj cov av pH hauv qab no 5 los yog saum toj no 9, siv yam tsawg kawg nkaus 0.5 mm tooj. Rau ib txwm loam, 0.25 mm yog txaus.
Kauj ruam 3: Muab cov khoom siv thiab cov khoom ntim rau hauv pwm
Ntxig CCS pas nrig thiab tus neeg xyuas pib tooj liab (los yog lwm tus CCS pas nrig) rau hauv pwm. Xyuas kom lawv sib txuas lus ruaj khov rau hauv kab noj hniav. Tom qab ntawd ncuav lub exothermic welding muab tub lim khoom (feem ntau yog ib pob ntawv ntsuas ua ntej ntawm 25 grams rau kev sib koom ua ke) nyob rau hauv lub crucible. Muab cov hlau disk tso rau sab saum toj ntawm qhov muab tub lim. Kaw lub hau pwm. Xyuas kom tseeb tias cov pwm yog clamped ruaj ntseg.
Kauj ruam 4: Ignite qhov Reaction
Kauj ruam 5: Tshawb xyuas qhov sib koom ua ke
Kev kuaj pom thawj zaug. Ib tug zoo weld yog du, ci iab, thiab dawb ntawm porosity. Cov tooj liab yuav tsum ntws sib npaug ntawm ob qho tib si conductors. Siv rab riam los txhuam qhov saum npoo - yog tias nws flakes, lub weld tsis muaj zog. Rau cov kev siv tseem ceeb, ua ib qho kev xeem tsis kam siv lub micro-ohmmeter. Qhov kev sib koom ua ke yuav tsum tsawg dua qhov tsis kam ntawm qhov sib npaug ntawm tus neeg xyuas pib. NDT (kev kuaj ultrasonic) yog xaiv tau tab sis pom zoo rau cov tshuab muaj kev ntseeg siab zoo li cov nroj tsuag hluav taws xob.
Ntawm no yog ib daim ntawv qhia ceev uas qhia txog cov kauj ruam thiab cov ntsiab lus tseem ceeb:
| Kauj ruam | Kev ua | Cov ntsiab lus tseem ceeb |
|---|---|---|
| 1 | Ntxuav pwm thiab conductors | Siv hlau txhuam; zam cov ntawv xuab zeb; kuaj pwm qhov sib txawv < 0.5 mm |
| 2 | Xaiv CCS loj | Txoj kab uas hla 12.5-25 mm; tooj liab thickness 0.25-0.50 mm raws li tam sim no thiab av pH |
| 3 | Muab cov conductors thiab muab tub lim | Xyuas kom ruaj khov; siv ua ntej ntsuas 25 g ib kit (kho rau cov pob qij txha loj) |
| 4 | Ignite | Sawv 1 m tawm; tos 30 s tom qab flash; tshem tawm slag |
| 5 | Tshawb xyuas thiab kuaj | Pom kev: du, ci iab; kev xeem tsis kam: < conductor kuj; Optional NDT |
Kev Tiv Thaiv Kev Nyab Xeeb: Tsis txhob hla cov no
Exothermic welding muaj cov tshuaj tiv thaiv uas ua rau kub kub thiab cov hlau molten. Hnav tsom iav kev nyab xeeb, hnab looj tes tawv, thiab tes tsho ntev. Ua qhov vuam nyob rau hauv qhov chaw uas muaj qhov cua zoo - cov tshuaj tiv thaiv tso tawm cov pa roj carbon monoxide thiab aluminium oxide plua plav. Tsis txhob welded ze ntawm cov khoom siv hluav taws xob. Khaws ib lub tshuab tua hluav taws nyob ze. Yog tias koj siv flint igniter, khaws cia deb ntawm koj lub ntsej muag. Kuv tau pom cov hlau kub kub ya tawm ntawm cov pwm uas tsis raug kaw kom zoo. Ib txwm muab ob npaug rau-kos lub clamp.
Compatibility nrog lwm cov khoom siv hauv av
Copper clad steel welds zoo nkauj rau cov tooj liab ntshiab, galvanized hlau, thiab stainless hlau - muab rau koj siv cov khoom muab tub lim kom raug. Rau tooj liab-rau-steel pob qij txha, siv cov khoom siv tooj liab. Rau stainless hlau, Yuav tsum muaj nickel-based filler. Tsis txhob sib tov fillers. Cov txheej txheem exothermic welding tsim ib daim ntawv cog lus uas yog hluav taws xob tas mus li thiab tsis muaj galvanic hlwb. Qhov no yog qhov zoo tshaj plaws ntawm cov clamps, uas tsim ib tug bimetallic corrosion site.
Cov qauv koj yuav tsum ua raws
Koj lub hauv av yuav tsum ua raws li IEEE 80 (substation grounding), ASTM B227 (CCS rod specifications), thiab UL 467 (grounding thiab bonding khoom). Cov qauv no qhia qhov tsawg kawg nkaus tus neeg xyuas pib qhov ntau thiab tsawg, kev txwv kev sib koom tes, thiab cov txheej txheem kuaj. Kuv pom zoo kom ib txwm qhia UL-listed exothermic weld cov khoom siv thiab CCS rods uas tau raws li ASTM B227. Nws cawm koj ntawm kev lav phib xaub thiab ua kom lub cev ua haujlwm raws li tsim.
Vim Li Cas Koj Yuav Tsum Ua Tam Sim No
Txhua hnub koj ncua kev txhim kho koj cov kev sib txuas hauv av yog ib hnub koj cov cuab yeej muaj kev cuam tshuam. Ib qho hluav taws xob sib tsoo tuaj yeem ua rau ntau lab nyob rau lub sijhawm poob. Copper clad steel rau grounding nrog exothermic welding tsis yog tus nqi; nws yog kev nqis peev hauv kev ntseeg siab. Kuv tau siv txoj kev no rau ntau pua txoj haujlwm, los ntawm me me telecom yees mus rau loj substations, thiab txhua qhov kev sib koom ua ke tseem ua tau zoo tsis muaj kev puas tsuaj ntau xyoo tom qab.
Tsis txhob khom rau clamps uas yuav ua tsis tau. Tsis txhob cia siab rau bolted kev sib txuas uas yuav corrode. Xaiv qhov kev daws teeb meem mus tas li. Hu rau peb pab neeg hnub no xaj koj cov tooj liab clad steel rods thiab exothermic vuam cov khoom siv. Peb yuav pab koj xaiv qhov tseeb diameters, tooj liab thicknesses, thiab cov ntaub ntawv muab tub lim rau koj cov av tshwj xeeb thiab cov khoom thauj tam sim no. Mus saib peb lub vev xaib lossis hu rau peb ntawm 1-800-555-0199 pib. Koj qhov grounding system tsim nyog qhov zoo tshaj plaws.
Tus neeg muab khoom
Hlau Phaj 4U yog ib tug ntseeg thoob ntiaj teb hlau composite vaj huam sib luag tsum & chaw tsim tshuaj paus nrog nws kim heev kev nyob rau hauv muab super high-zoo stainless hlau, npib tsib xee alloy, tooj liab, thiab titanium steel composite phaj. Lub tuam txhab xa tawm mus rau ntau lub teb chaws, xws li USA, Canada, Teb chaws Europe, UAE, South Africa, lwm. Raws li tus thawj coj tawg ua ke clad phaj tsim tawm, Hlau Phaj 4U dominates kev lag luam. Peb pab neeg ua haujlwm tshaj lij muab cov kev daws teeb meem zoo tshaj plaws los pab txhim kho kev ua haujlwm ntawm ntau yam kev lag luam, xws li cov hlab ntsha siab, kub exchangers, kev tsim nkoj, thiab chemical processing, tsim nqi, thiab yooj yim daws nrog ntau yam kev cov nyom. Yog hais tias koj tab tom nrhiav rau hlau composite panels los yog bimetal clad daim hlau, thov koj xav tiv tauj peb!