Electrofusion Fitting Vuam Txoj Cai
Electrofusion fittings ua tiav kev sib txuas los ntawm cov khoom siv polyethylene melting los ntawm cov hlau tsis muaj zog, zoo ib yam li siv rab phom kub kua nplaum rau cov yas. Thaum lub sij hawm pib vuam, cov khoom siv molecular chains rearrange los tsim ib tug ntom qauv. Yog tias yuam kom rov ua kom sov, cov qauv molecular qub yuav raug rhuav tshem, uas ua rau muaj qhov porosity lossis tsis tiav welds, ntau yam zoo li rov ua kom sov chocolate poob nws qhov ci.
Peb Qhov Tseem Ceeb Ntawm Kev Vuam Thib Ob
Strength Attenuation: Rov ua cua sov hloov cov khoom siv crystallinity, uas tuaj yeem txo qhov sib koom ua ke ntawm ntau dua 30%.
Sealing Failure: Ib txheej oxide yooj yim tsim nyob rau hauv thaj tsam molten, ua rau nws nyuaj rau lub qhov txhab kho kom zoo, zoo ib yam li cov pob txha ua rau ntawm qhov txhab.
Uncontrolled Deformation: Localized overheating tuaj yeem ua rau ntau tshaj ellipticity hauv qhov haum, ua rau muaj qhov tshwm sim zoo ib yam li "lub raj mis yas ci."
Cov xwm txheej tshwj xeeb tuav kev daws teeb meem
Thaum tsim nyog kho, xav txog cov kev daws teeb meem no:
Txiav cov seem puas thiab siv flange txuas, zoo li "patching" cov yeeb nkab.
Siv lub tes tsho kho tshwj xeeb rau kev txhawb nqa hauv zos.
Rau cov uas tsis yog -siab- cov kav dej, kev kho ib ntus tuaj yeem ua tiav nrog cov khoom siv epoxy resin composite.