(1) Tom qab cov yeeb nkab polyethylene yog welded nrog pe kub yaj tshuab, qhov kev lees txais thib peb yuav tsum tau ua kom muaj zog, thiab qee qhov kev faib ua feem ntawm cov pob qij txha yuav tsum raug txiav kom tsim nyog rau kev tshuaj xyuas sab hauv.
(2) Tshawb xyuas cov ntaub ntawv vuam ntawm txhua qhov chaw vuam, tshwj xeeb tshaj yog pe tsis siv neeg kub yaj tshuab. Saib (Kev khiav hauj lwm ntawm Tsis Siv Neeg Kub Melt Vuam Tshuab) kom paub meej
(3) Tshawb xyuas qhov pom kev puas tsuaj ua ntej. Kev tshuaj xyuas thiab kev lees paub xws li cov neeg saib xyuas yuav tsum xaiv ib feem ntawm cov welds rau kev kuaj pom raws li kev tsim kho, thiab txhua tus welder yuav tsum tsis pub tsawg tshaj 5 welds.
(4) Kev ntsuas kev puas tsuaj ntawm kev sib tshuam yuav tsum tau ua rau txhua qhov haujlwm. Hauv kev kuaj kev puas tsuaj, qhov vuam tuaj yeem raug txiav rau hauv 4 daim los kuaj xyuas qhov sib xyaw ua ke. fusion tsis tiav yog suav tias yog tsis tsim nyog. Kev ntsuas tensile kuj tseem tuaj yeem ua kom pom tias lub zog tensile ua tau raws li tus qauv tsim thiab cov lus qhia tshwj xeeb.
