Cov PPR Cov Yeeb Ncuab Polyethylene Dab Tsi?

Cov tshuaj polyethylene los ntawm polyethylene raj yog tsw, tsis muaj kuab lom, xyaw, tau zoo heev uas tsis muaj kev kub cev (yam tsawg kawg siv qhov kub tau mus txog -70 ~ 100 ° C), muaj cov tshuaj ruaj khov zoo, thiab tiv taus feem ntau cov kua qaub thiab alkali corrosion Cov tshuaj tsis haum nrog cov oxidizing khoom), tsis muaj cov kua dej nyob hauv cov dej kub, tsis muaj dej txaus, tab sis vim yog txoj kab ntawm PPR leeg, nws yuav qeeb qeeb rau qee cov organic solvents, thiab tsis txaus, thiab muaj hluav taws xob zoo cov khoom; Nws tseem ceeb heev rau cov kev ntxhov siab (tshuaj lom neeg thiab txhua yam ua haujlwm) thiab muaj kev kub nyhiab thaum laus. Qhov ntawm polyethylene nws txawv ntawm hom tsiaj thiab nyob ntawm seb feem xyuam rau cov qauv hauv molecular thiab ceev. (1) LDPE: qhov siab ceev polyethylene, kev kub siab polyethylene (2) LLDPE: tsis tshua muaj density polyethylene (3) MDPE: nruab nrab ntom polyethylene, bimodal re (4) HDPE: siab ceev polyethylene, tsis tshua muaj siab polyethylene (5) UHMWPE: ultra (7) ethylene copolymer: ethylene-propylene copolymer (yas), EVA, ethylene-butene copolymer, copolymers ntawm ethylene-lwm olefins (xws li octene POE, polyethylene polyethylene (PEX) cyclic olefin), ethylene-unsaturated ester copolymers (EAA, EMAA, EEA, EMA, EMMA, EMAH) nrog cov pob taw ntawm molecular ntawm 3,000,000-6,000, Cov txheej txheem polyethylene ntawm 000 yog hu ua ultra high molecular weight polyethylene (UHMWPE). Ultra high molecular phom polyethylene yog muaj zog heev thiab yuav siv tau ua ib lub cev muaj tej cuab yeej. Cov yeeb nkab ntawm cov yeeb nkab thiab kev siv Polypropylene Piping (PPR) (1) PPR yeeb nkab (thooj) rau cov cua kub thiab dej. Tus qauv hluav taws xob muaj qhov zoo ntawm txoj kev yooj yim thiab kev kho yooj yim, kev tiv thaiv thiab kev tiv thaiv ib puag ncig, lub cev nyhav, qhov tsis zoo ntawm lub cev, kev tiv thaiv kev kub hnyiab, kev tiv thaiv kev tiv thaiv, kev ua kom zoo txuag kev kawm thiab kev ua haujlwm ntev. Lub kab taub yog ib qho loj loj dua li cov diam duab. Yog PPR32 zoo li DN25, PPR63 muaj sib npaug rau DN50. Cov kab taub yog muab cais ua DN20, DN25, DN32, DN40, DN50, DN63, DN75, DN90, DN110. Cov yeeb nkab fittings muaj nyob rau hauv ntau hom tees, lauj tshib, yeeb nkab ferrules, reducers, yeeb nkab plugs, yeeb nkab clamps, nkhaus, thiab hangers. Dej xa cov dej yog muab faib ua ob ntu, qhov dej txias yeeb nkab yog ib qho hlua khoob ntsuab, thiab cov kav dej kub yog lub kav hlau liab. Lub valve muaj PPR pob valve, ntiaj teb valve, npauj npaim valve, qhov rooj valve, thiab tooj liab hauv cov khoom PPR. (2) PPR xa txuas kev sib txuas muaj xws li welding, kub yaj thiab ntsia hlau txuas. Ntawm lawv, qhov kev sib txuas ntawm kub-tshaj yog qhov txhim khu feem ntau, kev khiav hauj lwm yooj yim, airtightness zoo, thiab lub zog muaj zog yog siab. Cov kev txuas yeeb nkab siv ib txhais tes tuav fusion splicer rau qhov kub ntxhov kev txuas. Tshem cov plua tshauv thiab txawv teb chaws los ntawm cov kav dej thiab cov khoom ua ntej siv. Thaum lub teeb liab ntawm lub tshuab teeb thiab stabilizes, dlhos yeeb nkab kom txuas nrog (piece) DN <50 kub="" kub="" qhov="" tob="" 1-2mm,="" dn=""><110 kub="" kub="" qhov="" tob=""> Thaum kev cob cog rua, lub raj xa ntawv xaus rau hauv lub tsho kub uas tsis muaj kev sib hloov mus rau qhov chaw tob tshaj plaws. Thaum tib lub sijhawm, lub raj tso rau hauv lub taub hau cua kub tsis muaj cua sov, thiab tom qab thaum cua sov lub sijhawm mus txog, lub raj thiab lub raj raug tshem tawm ntawm lub qhov tso cua sov thiab lub cua sov lub taub hau, thiab lub raj yog ceev thiab tsis -votatingly thiab evenly ntxig rau hauv qhov tob yuav tsum tau, thiaj li hais tias Ib hom flange yog tsim nyob rau hauv lub sib koom tes. Cov pob txha tshiab khi tau txhawm rau hauv lub sijhawm tso cua sov uas tau teev tseg, tab sis kev sib tw yog txwv tsis pub. Thaum lub yeeb nkab thiab cov yeeb nkab ua kom sov, ntau cua kub yuav tsum tau tiv thaiv kom cov thickness nyias. Lub yeeb nkab yog deformed nyob rau hauv cov yeeb nkab phom. Cov kev sib hloov yog txwv tsis pub dhau lub sij hawm kub yaj cannula and calibration. Yuav tsum tsis muaj qhov nplaim taws ntawm qhov chaw ua haujlwm, thiab nws yog txwv tsis pub siv cov kav xa hluav taws xob qhib. Thaum cov xim yeeb nkab thiab cov yeeb nkab uas sib sib zog ua ke, cov quab yuam yuav tsum yog lub teeb kom tiv thaiv lub luj tshib los ntawm dabtsi yog khoov. Tom qab qhov kev sib txuas tiav, lub yeeb nkab thiab cov yeeb nkab yuav tsum muab kaw kom txaus rau lub sijhawm txaus, thiab tom qab txias rau ib qho twg, tus tes yuav raug tso tawm. Thaum cov yeeb nkab ntawm PP-R txuas nrog cov yeeb nkab ntawm hlau, PP-R yeeb nkab nrog hlau ntxig yuav tsum raug siv ua qhov kev hloov. Cov yeeb nkab ntawm cov yeeb nkab thiab PP-R yeeb nkab txuas nrog lub qhov kub thawv kub, thiab txuas nrog cov hlau fittings lossis cov cuab yeej kho vaj tse ntawm cov khoom ua kom huv. Thaum siv txoj hlua khau, ib daim ntaub nplaum yuav tsum siv los ua tus muab cov ntaub so. Yog tias tus kais dej txuas nrog lub pas pas dej, lub lauj kaub puab (hauv sab hauv) yog nruab rau ntawm qhov kawg PPR raj. Lub sijhawm thaum siv lub PPR yeeb nkab, tsis txhob siv zog ntau dhau los kom tsis txhob raug puas tsuaj rau threaded fittings thiab ua rau ntu ntawm qhov sib koom tes. Kev txiav tawm kuj tuaj yeem raug txiav los ntawm cov yeeb nkab tshwj xeeb: cov kav hlais muag yuav tsum muab kho kom haum rau lub taub ntawm lub yeeb nkab kom raug txiav. Thaum txoj kev sib hloov yog txiav, lub zog yuav tsum sib npaug li qub. Tom qab txiav, qhov kev ua tiav ntawm qhov kev sib tw tiav yuav tsum raug siv rau qhov pob txha. Thaum cov yeeb nkab tu nrho, qhov seem yuav tsum yog mus rau txoj hlua thiab qhov dawb ntawm cov kab npoo.