Polyethylene yog siv dav hauv tsev neeg, thiab rau ntau nws tau dhau los ua qhov tsim nyog. Cov khoom siv no tsis tu thiab tsis yooj yim. Txawm li cas los xij, nws cov tswv qee zaum ntsib teeb meem nyuaj - yuav ua li cas kua nplaum polyethylene? Cia peb hais tias koj yuav tsum tau kho cov khoom lag luam lossis txuas pob qij zaj duab xis. Cov nplaum tshwj xeeb yuav tsis tiv taus ntawm no, vim hais tias cov nplaim yas ntawm cov hom yas tsis zoo (kev nplaum). Tab sis nws tseem tuaj yeem daws cov teeb meem no.
Nws yog qhov tsim nyog
- - ob daim kab xev ntawm ob sab;
- - soldering hlau lossis hlau;
- - ob daim hlau hlau;
- - ntaub paj rwb;
- - chromic anhydride lossis chromic ncov;
- - Cov kua nplaum BF-2 (phenolic butyral);
- - kua nplaum rau polyethylene;
- - kev tiv thaiv ib tug neeg txhais tau tias.
Cov Lus Qhia
Kauj ruam 1
Txuas cov nqaws ntawm yas qhwv nrog ob daim kab xev. Qhov no yog qhov yooj yim thiab nrawm uas txuas cov ntu ntawm cov khoom siv no ib leeg rau ib leeg. Txawm li cas los xij, tsis txhob cia siab rau cov glued qhov chaw los tiv nrog cov nra hnyav.
Kauj ruam 2
Weld polyethylene - tej zaum txoj kev siv ntau tshaj plaws los koom cov yeeb yaj kiab. Nws yuav tsum muaj kev saib xyuas, txij li thaum kho cov cua sov koj pheej hmoo rhuav tshem cov khoom. Peb qhov tseeb ua pov thawj tuaj yeem pom zoo: - Tso ob tog ntawm polyethylene los sib khi ntawm ob daim hlau hlau kom cov npoo ntawm ob ntu tiv thaiv me ntsis. Khiav cov hlau soldering dua lawv - cov hlau yuav tiv thaiv cov yas los ntawm curling. Tsis tas li ntawd, yog tias tsim nyog, koj tuaj yeem ua cov ntaub qhwv ntsej muag los ntawm kev kho cov dej taws rau cov npoo ntawm qhov chaw kom txuas tau; Hauv qhov no, cov ntu yuav tsum tau sib tshooj (tsawg kawg 1-1.5 cm). Nthuav cov kab sib txawv ntawm cov paj rwb npuag hauv qab txheej ntawm zaj duab xis thiab nyob rau sab saum toj thiab hlau lawv; - Koj tuaj yeem txuas cov polyethylene qhov chaw los ntawm dripping molten yas tso rau hauv lawv cov sib koom tes. Txoj kev no, koj tuaj yeem kho tsis tsuas zaj duab xis, tab sis kuj tseem yog lwm yam khoom yas.
Kauj ruam 3
Pom cov yas looj yas tsim nyog. Feem ntau ntawm cov nplaum yuav tsis ua hauj lwm rau koj. Qee cov khoom sib tov tuaj yeem siv, tab sis tsuas yog tom qab npaj cov yas yas - nws yuav tsum ua cov nquag txav mus los. Txhawm rau ua qhov no, koj yuav tsum tau nruab nrog "chav ntsuas" me. Yog li, tom qab siv tshuaj tov ntawm chromic anhydride (25%) ntawm polyethylene, kua nplaum BF-2 tuaj yeem siv. Koj tuaj yeem tau txais daim kev cai tswjhwm chromium hauv khw muag tshuaj lom neeg lossis los ntawm cov kws paub txog tshuaj lom neeg. Koj tuaj yeem hloov nws nrog chrome khaws.
Kauj ruam 4
Sim ua cov tshwj xeeb polyethylene nplaum xws li DP 8005 (cov txheej txheem lo rau cov plastics) lossis WEICON Yooj Yim-Sib tov PE-PP (cov nplaum ua rau polyethylene thiab polypropylene). Qhov peculiarity ntawm cov ntawv sau cia yog tsis muaj qhov xav tau ntawm kev pib ua ntej ntawm cov khoom. Cov dej sib xyaw hloov cov qauv ntawm cov txheej txheem polyethylene, tom qab uas nws ua raws li ib txwm ua.
