O le paipa fa'apipi'i polyethylene u'amea fa'apipi'i e fai i le u'amea u'amea malulu ma le thermoplastics e fai ma mea mata, ma o paipa u'amea manifinifi puipui e fau mai i le argon arc butt welding po'o le plasma spiral welding e fa'aaogaina e fa'amalosi ai. O le pito i fafo ma totonu o mea e lua itu tu'ufa'atasi thermoplastics. O se ituaiga fou o paipa mamafa tu'ufa'atasi, Ona o le porous manifinifi-pa puipui uamea fa'amalosia paipa ua afifiina i le thermoplastic faifai pea, o lenei paipa tu'ufa'atasi e le gata e faatoilaloina le faaletonu ta'itasi o paipa u'amea ma paipa palasitika, ae o loʻo i ai foʻi le rigidity o paipa uʻamea ma le corrosion. tetee o paipa palasitika. O se vaifofo mo fale suau'u ma vaila'au. O se paipa fa'anatinati mana'omia o paipa maa'a tetele ma le vaeluagalemu i totonu o fanua o vaila'au, mea'ai, mining, kesi ma isi fanua. Ose fa'afou fa'atekonolosi ausia e foia ai le paipa autu o le fausiaina ma le sapalai o le vai. Ole ituaiga fou ole paipa tu'ufa'atasi ile 21stseneturi.
Fa'atinoga tumama
O le fa'asinomaga o le tumama ma le saogalemu o le paipa fa'apalapala palasitika fa'apipi'i fa'apipi'i e fetaui ma mana'oga o le GB9687 "Tulaga tumama mo Polyethylene Molded Products mo le afifiina o Mea'ai" ma le GВ/Т17219 "Tulaga Fa'avasegaina o le Saogalemu mo Mea Fa'asoa Suavai inu ma Meafaigaluega ma Mea Puipuia". O le mea sili e suitulaga i paipa u'amea ma paipa u'amea.
puipui malu i totonu ma fa'agaioiga ta'amilosaga
O le puipui i totonu o le mata uamea fusipa'u palasitika paipa tu'ufa'atasi e matua lamolemole, ma o le roughness atoatoa e na o le 1/20 o le paipa uamea. O le faʻaogaina o le gafatia i lalo o tulaga tutusa e tusa ma le 30% maualuga atu nai lo le paipa uʻamea.
Faʻamatalaga tele, faʻasesega ma le mamafa o le mamafa: faʻafetaui manaoga o le Matagaluega o le fausiaina o tulaga CJ/T181-2003 | |||||
Fa'aigoa pito i fafo le lautele ma le 'ese'ese | Ole mafiafia ole puipui ma le fa'aeseesega | Mai le lapotopoto | Ole mamafa ole igoa | S tau maualalo maualalo | Umi ma fa'asese |
Dn(mm) | En(mm) | Mm | Mpa | Mm | mm |
50+0.5 0 | 4.0+0.5 9 | 1.0 | 1.0 | 1.5 | 6000+20 0 9000+20 0 12000+20 0 |
60+0.6 0 | 4.5+0.6 0 | 1.26 | 1.0 | 1.5 | |
75+0.7 0 | 5.0+0.7 0 | 1.5 | 1.0 | 1.5 | |
90+0.9 0 | 5.5+0.8 0 | 1.8 | 1.0 | 1.5 | |
110+1.0 0 | 6.0+0.9 0 | 2.2 | 1.0 | 1.5 | |
140+1.1 0 | 8.0+1.0 0 | 2.8 | 1.0 | 2.5 | |
160+1.2 0 | 10.0+1.1 0 | 3.2 | 1.0 | 2.5 | |
200+1.3 0 | 11.0+1.2 0 | 4.0 | 1.0 | 2.5 | |
250+1.4 0 | 12.0+1.3 0 | 5.0 | 0.8 | 3.5 | |
315+1.6 0 | 13.0+1.4 0 | 6.3 | 0.8 | 3.5 | |
400+1.6 0 | 15.0+1.5 0 | 8.0 | 0.8 | 3.5 | |
500+1.7 0 | 16.0+1.6 0 | 10.0 | 0.6 | 4.0 | |
630+1.8 0 | 17.0+1.7 0 | 12.3 | 0.6 | 4.0 | |
Manatua: O le mamafa o le paipa tuʻufaʻatasia o le maualuga maualuga lea e faʻatagaina mo le paipa e felauaiga vai i le 20 ° C. Afai e suia le vevela, e tatau ona faʻasaʻo le mamafa o le galue e tusa ai ma le maualuga o le mamafa o mea eseese. S tau: o le mamao mai le pito i fafo o le faʻamalosi i le pito i fafo o le paipa. |
Manaoga fa'atino fa'aletino ma masini | ||
Poloketi | Fa'atinoga | |
Malosi mama, KN/m2 | >8 | |
Fa'aitiitiga umi (110°C, tausia 1h) | <0.3% | |
Su'ega eletise | vevela: 20°C; Taimi: 1h; Ole mamafa x2 | E le gau |
vevela: 80°C; Taimi: 165h; Malosi: Fa'aigoa fa'aigoa x2x0.71 (fa'aitiitiga fa'aitiitiga) | ||
Su'ega o le mamafa o le pa | Vevela: 20°C, pa'u mamafa≥fa'aigoa mamafa x3.0 | Pa'u |
Taimi fa'aosoina (200°C), min | >20 | |
Tete'e i le fa'avavevave o le fa'alauteleina o le mamafa (80°C, 4.0Mpa)/h | >1000 | |
Tete'e tau (ina ua uma ona maua le paipa≥3.5GJ/m2malosi matua) | Faʻafeiloaʻi manaʻoga o mea 2,3 ma le 4 i lenei laulau, ma e mafai ona faʻatumauina lelei le faʻatinoina o le uelo |