Kufunika kwa mapaipi owonera awiri ndi ma polyurethane owoneka bwino mu chitoliro cha chitoliro
Chitoliro chowalaamatanthauza chitoliro chomwe chapangidwa kawiri powirikiza kupanga cholumikizira, cholimba kwambiri. Chitoliro chamtunduwu nthawi zambiri chimagwiritsidwa ntchito pomanga mapaipi papaipi pomwe kuwotcherera mtundu ndi nyonga ndi kotsutsa. Njira yotentha yowirikiza kawiri imaphatikizapo kugwiritsa ntchito njira zoweta kuti zitheke mapaipi awiri limodzi kuti awonetsetse kulumikizana kwamphamvu komanso kosazungulira. Sikuti izi zimangowonjezera mphamvu zonse za chitoliro ndi kulimba kwa chitolirochi, zimachepetsa chiopsezo cha zofooka zomwe zikuyenda ndi kutayikira.
Polyirethane chitoliro chokhazikikaKomabe, kumbali inayo, ndi chitoliro chomwe chimakhala ndi chophimba cholumikizira cha polyurethee chomwe chimapereka chitetezero chowonjezera ku chilengedwe, Abrasion, ndi kuwukira kwa mankhwala. Chingwecho chimayikidwa mkati mwa chitolirocho kuti chikhale chotchinga pakati pa madzimadzi omwe amatengedwa ndi chitsulo cha chitoliro cha chitoliro. Mapaipi a Polyirethane amakhala opindulitsa makamaka pamapaipi omwe amagwiritsidwa ntchito kunyamula zinthu kapena kugwira ntchito mwamphamvu zachilengedwe. Zingwe za polyiretha sizingofikitsa moyo wa mapaipi anu, zimachepetsa chiopsezo cha kutayikira ndi kukonza ndalama.
Katundu wamakina
Grade 1 | Gires 2 | Giredi 3 | |
Zopatsa kapena zolimbitsa mphamvu, min, MPA (PSI) | 205 (30 000) | 240 (35 000 000) | 310 (45 000,000) |
Kukhala mphamvu, min, MPA (PSI) | 345 (50 000) | 415 (60 000) | 455 (66 0000) |
Kuphatikiza apo, mphamvu yopangaMapaipi a Sporsionndizokwera kwambiri kuposa mapaipi achitsulo osawoneka. Chitoliro chopanda chosaka, kapangidwe kake kazipanga kumaphatikizapo kuyamikira chibilo chokhazikika kudzera mu ndodo yopangidwa ndi mafuta, zomwe zimapangitsa pang'onopang'ono komanso njira yovuta kwambiri. Mosiyana ndi izi, chitoliro chowoneka bwino chimatha kupangidwa m'magawo akuluakulu komanso kutalika kwake, zomwe zimapangitsa kuti zikhale zazifupi komanso kuchuluka kwa mphamvu. Izi zikuwonetsetsa kuti likhale losakhazikika pamapaipi apamwamba kwambiri mu nthawi yayifupi, ndikupangitsa kuti kukhala yankho lodalirika komanso lopulumutsa nthawi yopulumutsa mafakitale osiyanasiyana.
Ubwino wina wofunika kwambiri wa mapaipi owoneka bwino ndi omwe amakana kwambiri kukakamiza ndi kupsinjika kwamakina. Ma welds amapereka kukhazikika kwina, kulola mapaipi awa kuti apirire zovuta zapamwamba kuposa mapaipi osawoneka. Katunduyu ndi wofunikira kwambiri pakugwiritsa ntchito mafuta m'mafakitale ndi mafuta, pomwe ma pipelines amatengera zovuta zakunja ndi zakunja. Pogwiritsa ntchito mapaipi owoneka bwino, makampani amatha kutsimikizira mayendedwe abwino komanso oyenera a zinthu zofunika izi.

Mu chitoliro chikukuritsa, kuphatikiza pa chitoliro chazithunzi ndi chitoliro cha polyirethane chimapereka zabwino zambiri. Choyambirira komanso chofunikira kwambiri, kugwiritsa ntchito chikuto chowala chowirikiza kawiri kumachepetsa kupatuka kwa chitoliro cha chitolirochi, kuchepetsa mwayi wowuzira ndi kulephera kopitilira. Izi ndizofunikira kwambiri m'mafakitale omwe mapaipi akukakumana ndi zovuta zambiri komanso kutentha. Kuphatikiza apo, kugwiritsa ntchito mapaipi okhala ndi polsurethane kumapereka chitetezo chowonjezera kuwonongeratu kuwonongeka ndikuvala, kupititsa patsogolo kulimba kwa chitumbuwa ndi moyo wamoyo.
Kuphatikiza apo, kugwiritsa ntchito chitoliro cha chitoliro chowirikiza kawiri ndi poureurethain kumatha kupereka ndalama zothandizira pa mapaipi. Mphamvu yokwezedwa ndi kukhazikika kwa chitoliro chazithunzi chowirikiza chimatha kuchepetsa kufunikira kokonza pafupipafupi ndikukonzanso nthawi ndi ndalama pakapita nthawi. Momwemonso, zotetezera zoperekedwa ndi chitoliro choperekedwa ndi polyeline zimatha kukulitsa moyo wautumiki, potero kuchepetsa m'malo ndikukonzanso.
Pomaliza, kugwiritsa ntchito mapaipi owiritsa awiri ndi mapaipi a polyirethane ndikofunikira mu kuwala kwa chitoliro. Zina sizingawonetsetse kukhulupirika ndi mphamvu za paipi, komanso zimapereka chitetezo chokwanira kuwonongedwa, Abrasion ndi kuwukira kwa mankhwala. Mwa kuphatikiza ukadaulo wapamwamba kwambiriwu m'masitepe apakati pa mapaipi, ogwiritsa ntchito amatha kukwanitsa kudalirika, kugwiritsa ntchito ndalama ndi kuchuluka kwa mapaipi awo.