Vuam txheej txheem ntawm PE-RT yeeb nkab

Ob txheej txheej vuam yuav tsum tau siv rau PE-RT kav thiab PE-RT Hom II kav:
1, Ob lub ntsiab lus tseem ceeb yuav tsum tau muab sau tseg rau hauv cov txheej txheem kub yaj ntawm PE-RT kav:
1. Tswj qhov kub ntawm lub tshuab kub yaj ntawm 250-260 degree C;
2. Thaum ntxig PE-RT kav thiab fittings, lub sij hawm nyob rau hauv lub pwm lub taub hau yuav tsum luv luv thiab yuav tsum ceev ceev. Cov kav dej thiab fittings yuav tsum tau muab tso sai sai thaum lub sijhawm lawv rub tawm dua. Cov txheej txheem kev khiav hauj lwm ib txwm yog kho lub tshuab rau 255 degree C thiab npaj cov PE RT yeeb nkab fittings rau kub melting. Thaum qhov kub ntawm lub tshuab kub melting mus txog qhov ntsuas kub, tuav cov yeeb nkab ntawm koj sab laug thiab cov yeeb nkab ntawm koj sab tes xis nrog kev sib npaug sib npaug kom txog thaum ob txhais tes xav tias cov yeeb nkab fittings tau mus txog qhov tob ntawm lub qhov (socket). Ceev nrooj rub tawm lub taub hau pwm ntawm cov yeeb nkab fittings, thiab ceev nrooj ntxig cov yeeb nkab fittings rau hauv cov yeeb nkab fittings rau ib lub sij hawm ntawm lub sij hawm kom txog rau thaum qhov kub thiab txias txias ua ntej tso tes.
2, Kub yaj pob tw vuam txheej txheem rau PE-RT kav
1. Kho qhov chaw uas yuav tsum tau txuas. Kho cov kav dej PE-RT thiab cov khoom siv uas yuav tsum tau welded rau ntawm qhov chaw ntawm lub tshuab vuam. Qhov nruab nrab ntawm cov kav dej ruaj khov thiab cov khoom siv yuav tsum nyob rau tib lub dav hlau kab rov tav, thiab cov yeeb nkab phab ntsa yuav tsum sib tshooj kom tsis txhob siab thiab qis, sab laug thiab txoj cai misalignment.
2. Ua ntej milling lub ntsej muag kawg ntawm cov kav dej PE-RT, ntxuav cov yeeb nkab sab hauv thiab sab nraud ntawm qhov kawg ntawm 100mm nrog cov ntaub paj rwb huv. Tom qab ntawd kho lub milling cutter thiab thawb txoj kev taug kev mus rau zeb cov yeeb nkab kawg. Muaj ob qhov teeb meem yuav tsum nco ntsoov ntawm no. Ua ntej, lub zog yuav tsum tau maj mam muab tshem tawm ua ntej nres kom ntseeg tau tias cov yeeb nkab zoo kawg nkaus (tam sim ntawd tshem tawm ntawm lub zog milling cutter yuav tawm hauv lub plhaub ntawm cov yeeb nkab kawg), thiab qhov thib ob, los tiv thaiv cov pa phem thib ob ntawm cov yeeb nkab kawg ua ntej cua sov.
3. Ua ntej melting mating nto ntawm lub phaj cua sov, qhov kev sib tw yuav tsum tau kuaj xyuas dua. Yog tias pom qhov khoob lossis qhov tsis zoo, lawv yuav tsum tau kho los ntawm kev kho cov txiv ntoo fastening thiab lwm txoj hauv kev. Ua ntej, preheat lub tshav kub ntawm lub kub yaj lub taub qab vuam tshuab rau 210 ~ 220 degree, thiab ces yaj lub ntsej muag kawg ntawm PE-RT yeeb nkab. Lub sij hawm melting feem ntau yog phab ntsa thickness × 10 vib nas this. Nws yuav tsum raug sau tseg tias qhov ntsuas kub ntawm lub phaj cua sov tsuas yog siv tau raws li kev siv, thiab nws cov lus qhia qee zaum kuj txawv ntawm qhov xwm txheej tiag tiag vim qhov kub thiab txias ntawm nws tus kheej. Qhov kub yaj ua tau raws li cov qauv tsim tshwj xeeb raws li cov melting thiab curling ntawm cov yeeb nkab kawg. Lub thickness ntawm curling yuav tsum tsis txhob tsawg tshaj li 1/10 ntawm cov yeeb nkab phab ntsa thickness, thiab nws yog tsim nyog los ua kom tiav fusion ntawm ob kawg kom tau raws li tus qauv.
4. Tom qab ob qho tib si kub yaj (PE-RT yeeb nkab thiab PE-RT yeeb nkab lossis PE-RT yeeb nkab thiab PE-RT yeeb nkab fittings) ua tau raws li qhov yuav tsum tau ua fusion, tshem tawm cov phaj cua sov sai sai thiab siv zog ua kom ob qho tib si tag nrho. Tom qab siv lub zog, lub xauv lub buckle yuav tsum tau muab xauv tam sim ntawd kom tswj tau qhov kev sib txuas tas li ntawm qhov sib txuas kom txog thaum lub interface kub poob mus rau qhov kub thiab txias ua ntej lub siab tuaj yeem txo qis. Tshem tawm cov cuab yeej kho, thiab xyuam xim kom tsis txhob txav cov yeeb nkab thaum lub sij hawm txias txias los yog muaj zog sab nraud ua rau cov yeeb nkab. 5. Tom qab kho lub tshuab ntaus ntawv, tshuaj xyuas cov tsos ntawm fusion sib koom ua ke. Qhov siab thiab dav ntawm qhov kub melt circumferential forming yuav tsum zoo ib yam thiab zoo nkauj, nrog rau qhov siab ntawm 2-4mm thiab dav ntawm 4-8mm raws li tsim nyog.