Ntxiv nrog rau cov txheej txheem electrofusion nws tus kheej, qhov ua tau zoo ntawm kev sib koom ua ke ntawm electrofusion yog nyob ntawm kev rov ua kom cov yeeb nkab (yog tias cov yeeb nkab yog distorted los yog oval), npaj cov khoom sib koom ua ke, ua kom cov yeeb nkab thiab fittings zoo, thiab xyuas kom meej tias tsis muaj kev txav mus los thaum lub sij hawm. txheej txheem fusion.
Pipe Re-Rounding
Cov kav dej deformed lossis oval yuav tsum tau rov ua kom zoo dua kom ntseeg tau tias lawv haum rau cov khoom siv hluav taws xob thiab qhov kev sib tw ntawm cov yeeb nkab thiab lub qhov (socket) yog ib txwm zoo ib yam. Rau cov kav dej loj, qhov no yuav tsum tau siv cov khoom siv hydraulic rov ua dua. Rau me me thiab nruab nrab diameters, kev txwv thiab kev sib haum xeeb clamps siv los tuav cov yeeb nkab nyob rau hauv qhov chaw thaum lub sij hawm electrofusion txheej txheem feem ntau yog txaus los rov qab cov yeeb nkab mus rau qhov yuav tsum tau degree.
Kev npaj ntawm Joint Surfaces
Tag nrho saum npoo ntawm cov yeeb nkab uas yuav tsum tau muab tso rau hauv lub electrofusion haum yuav tsum tau stripped los yog scraped siv lub cuab yeej tsim nyog (raws li kev pom zoo los ntawm cov chaw tsim khoom haum). Nws raug nquahu kom siv cov cuab yeej stripping es tsis yog siv tes scraper vim qhov no ua kom tag nrho cov yeeb nkab nto raug tshem tawm mus rau qhov tob ntawm kwv yees li 0.2 hli. Qhov no txaus los tshem tawm cov khoom oxidized, qias neeg los yog cov khoom tsis huv. Txawm hais tias siv cov yeeb nkab stripper yog siv sij hawm ntau dua li tus ntiv tes scraper, nws yuav tshem tawm qhov chaw ntawm cov yeeb nkab uas yuav raug electrofused. Txawm li cas los xij, ib txhais tes scraper yog qhov tseem ceeb rau kev npaj kawg ntawm cov yeeb nkab. Lwm yam khoom siv xws li cov ntaub ntawv hlau, cov ntaub qhwv, emery lossis ntawv xuab zeb yuav tsum tsis txhob siv.
Tom qab stripping, stripped nto yuav tsum tau muab so nrog ib tug tso cai isopropyl cawv-soaked yeeb nkab rag, raws li pom zoo los ntawm cov yeeb nkab los yog haum chaw tsim tshuaj paus, kom tshem tawm tej plua plav seem. Methylated ntsuj plig, acetone, methyl ethyl ketone (MEK) los yog lwm yam kuab tshuaj yuav tsum tsis txhob siv los so lub scraped nto, vim lawv yuav tso ib tug residue uas yuav cuam tshuam rau fusion txheej txheem. Qhov chaw npaj yuav tsum qhuav tag ua ntej yuav mus.
Lub electrofusion haum nws tus kheej yuav tsum nco ntsoov khaws cia rau hauv ib lub hnab yas kaw kom txog thaum ua ntej cov yeeb nkab npaj tau muab tso rau hauv qhov haum. Qhov no yog los tiv thaiv kev kis kab mob ntawm fusion nto. Yog hais tias sab hauv ntawm lub fitting lub puab nto yog kab mob nyob rau hauv ib co txoj kev, nws yuav tsum tau ntxuav kom huv si nrog ib tug yeeb nkab rag soaked nyob rau hauv isopropyl cawv thiab tso cai kom qhuav ua ntej cov yeeb nkab yuav tsum tau muab tso rau.
Kev siv cov kav dej tuav thiab kev sib dhos ua ke
Raws li lub npe qhia, qhov khoom siv no yog siv los xyuas kom meej tias ob qho tib si cov yeeb nkab thiab cov khoom siv hluav taws xob tau raug ua kom zoo ua ntej cov txheej txheem fusion pib, thiab tom qab ntawd tuav ruaj khov rau hauv txoj haujlwm ntawd kom txog thaum tag nrho cov txheej txheem fusion tiav. Txawm hais tias ECU tuaj yeem ua tib zoo txiav tawm ntawm qhov sib koom ua ke thaum lub sijhawm cua sov ntawm cov txheej txheem tiav, lub clamp yuav tsum nyob twj ywm rau hauv qhov chaw kom txog thaum lub caij txias dhau. Qhov no yog los xyuas kom meej tias cov polyethylene uas tau yaj thaum lub sij hawm cua sov theem txias thiab hardens nyob rau hauv lub sib koom tes. Thaum kawg ntawm theem cua sov, ECU yuav tsum ceeb toom rau tus neeg teb xov tooj ntawm lub sijhawm txias uas yuav tsum tau ua. Xwb, lub sij hawm txias yuav tsum tau cim rau ntawm qhov sib koom ua ke los yog muab rau hauv cov ntaub ntawv nrog rau kev sib koom ua ke.
Yog tias ua kom raug, qhov sib koom ua ke yog qhov tsawg kawg yog muaj zog raws li cov yeeb nkab qub thiab yuav tiv taus tag nrho cov khoom siv thaum nruab hnub thiab ua haujlwm.
