Electrofusion Cooling Time: Yam Uas Yuav Tsum Paub Ua Ntej Tshem Clamps, Backfilling, lossis Kuaj

Ib qho txuas uas hnov txias thaum kov tseem tsis tau tiav tsim. Cov khoom tej zaum twb tsis ci lawm thiab qhov txuas zoo li ruaj khov, tab sis sab hauv tseem tab tom ua kom ruaj. Yog koj tshem cov clamps lossis muab hnyav rau lub raj sai dhau, qhov tawg tawg yuav txav, tso tseg ib qho tawg sab hauv, tsis pom, thiab nyob mus ib txhis.

Dab tsi tshwm sim thaum txias

Thaum hluav taws xob ntws, lub coil kub lub qhov txuas thiab lub raj nto kom lawv ob leeg tawg, thiab cov khoom nthuav dav muab siab rau qhov txuas. Thaum hluav taws xob nres, qhov siab ntawd yuav tsum tau khaws cia thaum melt qhuav thiab ob qho nto sib xyaw ua ke. Khaws kom ruaj khov thaum lub sijhawm no yog qhov hloov ib qho melted interface mus ua ib qho kev sib txuas zoo. Txhua qhov kev txav, hnyav ntxiv, lossis poob clamp pressure thaum lub sijhawm no tuaj yeem ua rau nws muaj teeb meem.

Two times, not one

Cov tuam txhab tsim khoom muab ob tus naj npawb rau txhua qhov txuas, thiab koj tsis tuaj yeem hloov lawv:

• Cooling time- ntev npaum li cas qhov txuas yuav tsum nyob ruaj thiab tsis raug kov ua ntej koj thiaj li tshem tau cov clamps
• Waiting time- ntev npaum li cas ua ntej qhov txuas raug kuaj siab, tapped, rov puv, lossis siv tau

Qhov thib ob yeej ntev dua qhov thawj. Tshem cov clamps thaum kawg ntawm lub sijhawm txias tsis txhais tau tias koj tuaj yeem sim tam sim ntawd.

Typical values by size

Cov lej tseeb los ntawm daim ntawv cim ntawm cov khoom siv lossis lub vijtsam ntawm lub cuab yeej. Daim ntawv hauv qab no qhia cov nqi uas koj yuav pom hauv cov phau ntawv qhia kev sib txuas, tsuas yog kom koj to taub txog qhov loj. Yog tias ib qho kev piav qhia ntawm qhov project lossis tus tsim khoom ntawm cov khoom siv hais tias yuav siv sijhawm ntev dua, qhov ntawd yog qhov koj yuav tsum ua raws.

Coupling size	Cia nws txias me ntsis ua ntej tshem clamp	Lub sijhawm tos ib txwm ua ntej siab kuaj tag nrho
Up to 32 mm	10 minutes	30 minutes
40 to 63 mm	10 minutes	20 minutes
90 to 110 mm	20 minutes	45 minutes
125 mm	25 minutes	60 minutes
3/4 nti mus rau 2 nti (txo qis)	30 minutes	-
3 txog 8 nti (conservative)	45 minutes	-
10 txog 12 nti (kev tiv thaiv)	60 minutes	-

Qhov txawv ntawm cov ncej tsis yog kev tsis sib haum. Cov txheej txheem rau cov raj me me qhia sijhawm luv dua, thaum cov txheej txheem ceev faj uas npog txhua qhov txuas hauv lub network hluav taws xob qhia txog lub sijhawm ntev tshaj plaws uas cov tuam txhab tsim khoom yuav xav tau. Hauv ib qho trench nrog cov raj loj sib txawv, ua raws li kab tiv thaiv tshem tawm kev kwv yees.

What lengthens cooling

Condition	Effect
High ambient temperature	Ua kom nws ruaj qeeb dua; nthuav ob zaug
Direct sun on the joint	Zoo ib yam, ntxiv rau qhov txias tsis sib npaug ib ncig ntawm lub voj voog
Qhov dav loj, phab ntsa tuab	Nws siv sijhawm ntev dua kom cua sov khaws cia hauv pawg ploj mus
Nkag mus rau hauv qhov tob nqaim	Cua ntsiag to ua haujlwm raws li kev thaiv cua; tsis txhob ceev faj vim tias qhov fittings hnov sov.

Dab tsi tiag tiag 'tsis muaj kev cuam tshuam' txhais tau li cas hauv lub neej txhua hnub

Nws txhais tau ntau dua li tsuas yog tsis kov qhov txuas xwb. Thaum nws txias, tsis txhob: tshem tawm lossis tso clamps, nqa lossis txav lub raj, puv ib ncig nws, compact, kov lub main, weld qhov txuas tom ntej ntawm tib qhov ntev yog tias nws yuav ua rau qhov no muaj kev ntxhov siab, lossis taug kev ntawm lub raj. Thaum cov raj raug sib dhos sai, qhov kawg feem ntau yog qhov ua rau cov neeg ua haujlwm poob-qhov txuas tom ntej nias thiab rub qhov uas twb ua tiav lawm.

Xyuas qhov txuas thaum lub sijhawm tas lawm

Thaum tshem cov clamps, xyuas qhov txuas ua ntej muaj dab tsi thaiv: cov cim melt yuav tsum sib npaug ob sab, cov cim tso yuav tsum nyob deb tib yam ntawm qhov qhov txuas, tsis txhob muaj melt ntws dhau ntug, tsis muaj qhov kub lossis npuas, thiab tsis muaj qhov chaw lossis kauj ruam thaum lub raj txuas nrog qhov txuas. Yog tias qhov twg tsis raug, koj txiav tawm es tsis txhob sim thiab cia siab tias yuav zoo.

Cov lus nug nquag nug

Kuv puas tuaj yeem txias lub joint nrog dej kom txuag sijhawm?

Tsis yog. Txias sai dhau yuav hloov txoj kev crystallisation ntawm cov khoom thiab ntxiv kev kub siab. Lub sijhawm txias muaj laj thawj thiab tsis tuaj yeem ceev faj.

Kuv qhov fitting tsis muaj qhov qhia melting. Kuv paub li cas tias nws melted ua ke?

Koj tuaj yeem xyuas cov ntaub ntawv voj voog ntawm lub cuab yeej thiab cov cim tso rau, tom qab ntawd cim qhov txuas nrog tus naj npawb vuam thiab lub sijhawm. Yog tsis muaj cov cim qhia, cov ntaub ntawv sau ua pov thawj.

Kuv puas tuaj yeem vuam qhov txuas tom ntej thaum qhov no txias?

Tsis yog tsuas yog thaum ua li ntawd tsis muab hnyav rau qhov txias txuas. Ntawm ib qho kab ncaj nrog kev txhawb nqa zoo, feem ntau ua tau; rau ib qho spool luv lossis tig, tsis tau.

Lub sijhawm txias puas hloov thaum caij ntuj no?

Cov tuam txhab tsim khoom feem ntau tsis txo nws thaum txias. Cov naj npawb tseem ceeb nyob li qub, thiab kev pheej hmoo tsuas yog mus rau theem npaj xwb.