PP-R Cov kav dej kub thiab dej txias

PP-R cov kav dej tsis yog tsuas yog muaj cov khoom tshwj xeeb ntawm cov kav dej yas zoo tib yam xws li xeb dawb, tsis muaj qhov ntsuas, tsis tshua muaj dej tsis kam, thiab kev siv hluav taws xob tsawg, tab sis kuj muaj lub neej ua haujlwm ntev, zoo kub tsis zoo cuam tshuam, kub deformation. tsis kam (90) degree ), thiab zoo kub yaj weldability. Thaum xa cov dej kub nrog qhov kub ntawm 70 degree thiab kev ua haujlwm siab ntawm 1.0Mpa, lub neej ua haujlwm tas mus li tuaj yeem ncav cuag 50 xyoo, ua rau nws cov khoom zoo tshaj plaws rau kev hloov cov kav dej galvanized.

PP-R cov kav dej kub thiab dej txias muaj tag nrho ntawm 54 cov khoom, muab faib ua 11 qhov tshwj xeeb los ntawm dn16-dn160. Cov khoom tau muab faib ua 5 qib siab raws li qhov siab: PN1.25 MPa, PN1.6 MPa, PN2.0 MPa, PN2.5 MPa, thiab PN3.2 MPa. Muaj 220 qhov kev txhawb nqa cov yeeb nkab fittings, thiab cov khoom siv rau cov dej hauv tsev thiab kev thauj mus los kub.

 

 

Kev tu cev zoo heev ntawm cov khoom

Cov molecular muaj pes tsawg leeg ntawm PP-R raw khoom tsuas yog tsim los ntawm carbon thiab hydrogen, thiab tsis muaj teeb meem los yog tshuaj lom cov ntsiab lus tam sim no. Cov khoom muaj kev nyab xeeb thiab huv si.

Cov khoom zoo heev

PP-R cov yeeb nkab dej kub thiab dej txias muaj kev ruaj ntseg zoo, nrog kev tawg siab txog li 6.0MPa.

Kev ua haujlwm zoo rwb thaiv tsev

Lub thermal conductivity ntawm PP-R kav yog 0.21 W / mK, tsuas yog 1/200 ntawm cov kav hlau steel, zoo muab rwb thaiv tsev rau cov kav dej thiab txo cov cua sov.

Kev ua haujlwm kub zoo: Vicat softening point ntawm PP-R pipeline yog 131.5 degree, thiab qhov siab tshaj plaws ua haujlwm kub tuaj yeem ncav cuag 95 degree. Cov khoom ua tau raws li qhov xav tau ntawm kev thauj mus los hauv dej kub.

Lub neej ua haujlwm ntev

PP-R cov kav dej kub thiab dej txias tuaj yeem muaj kev pab cuam lub neej tshaj 50 xyoo nyob rau hauv kev ua haujlwm kub ntawm 70 degree thiab ua haujlwm siab ntawm 1.

Ua tiav kev txhawb nqa yeeb nkab fittings

Muaj ntau tshaj 200 hom PP-R txhawb cov yeeb nkab fittings, nrog rau cov kev qhia tshwj xeeb xws li dn20 txog dn160, uas tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm ntau lub tsev siv dej.

Kev nyab xeeb thiab kev noj qab haus huv ntawm tooj liab qhov chaw

Siv 58-3 cov khoom siv tooj liab, nrog cov ntsiab lus txhuas tsawg dua 3%; Qhov saum npoo yog kho nrog npib tsib xee plating, uas tsis muaj kab mob; Cov ntsia hlau tooj liab yog kho nrog knurling, kom ntseeg tau tias lawv tsis clump los yog poob tawm thaum lub sij hawm installation.

 

 

Kev soj ntsuam zoo: cov yeeb nkab zoo PP-R dej muaj cov xim sib xws, tsis muaj lwm yam xim, du thiab du nto, thiab tsis muaj qhov tsis xws li npuas, pom kev nyuaj siab, grooves thiab impurities.

Kov kev ntxhib los mos: zoo PP-R cov yeeb nkab dej muaj qhov muag muag, kev ntxhib los mos thiab du nto, thaum pseudo PPR yeeb nkab yuav hnov ​​​​ntxhiab lossis mos, nrog cov khoom ntxhib.

Cov ntxhiab tsw: Cov khoom tseem ceeb ntawm PP-R raj yog polypropylene, thiab cov yeeb nkab zoo tsis muaj ntxhiab tsw, thiab cov yeeb nkab tsis zoo muaj qhov txawv txav, uas tej zaum yuav tov nrog polyethylene es tsis yog polypropylene.

Test hardness: PP-R raj muaj ib tug tej yam hardness, yog hais tias nws yuav yooj yim pinched deformation, nws yuav tsis yog ib tug zoo PP-R raj.

Ntsuas cov phab ntsa tuab: siv lub vernier caliper los ntsuas cov yeeb nkab phab ntsa tuab kom ntseeg tau tias cov yeeb nkab phab ntsa tuab yog tus qauv thiab sib xws.

Mloog lub suab: cia PP-R raj av ib txwm muaj, yog tias lub suab tsaws tsis zoo, qhov zoo dua; Yog hais tias lub suab tsaws yog qhov tseeb, nws yuav yog pseudo PPR raj.

Kev sim kub melting: zoo PP-R yeeb nkab yuav tsis tawm tsis xis nyob thiab tsis hnov ​​tsw thaum kub melting rau combustion. Thiab cov kav dej tsis zoo PP-R, vim tias sib xyaw nrog cov yas tsis zoo thiab lwm yam impurities, combustion yuav muaj ntxhiab thiab residue.

Kev sim cov hlau nplaum: cov tooj dag zoo (tsis muaj cov hlau hnyav xws li txhuas thiab hlau) tsis tuaj yeem nqus cov hlau nplaum, thiab cov tooj dag tsis zoo txhawm rau tiv thaiv cov tooj liab thiab PP-R kev laus, yuav tsum tau coated nrog npib tsib xee / chromium thiab lwm yam teeb meem sab nraud ntawm tooj liab. (cov hlau nplaum tuaj yeem nqus tau).

Test brittleness: Qhov zoo tshaj plaws imported PP-R tuaj yeem tawg, tshwj xeeb tshaj yog nyob rau ntawm qhov kub thiab txias, uas yog qhov kub thiab txias brittleness txiav txim los ntawm PP-R raw cov ntaub ntawv. Ntawm qhov tsis sib xws, qee qhov cuav thiab shoddy PP-R raj ntxiv nrog lwm cov ntaub ntawv raw tsis yooj yim tawg.

 

 

Cim npe nrov: pp-r kub thiab txias yeeb nkab, Tuam Tshoj pp-r kub thiab txias yeeb nkab lwm tus neeg, hoobkas