Njira yolumikizira chitoliro chamoto: ulusi, poyambira, flange, ndi zina zambiri. Chitoliro chachitsulo chamkati ndi chakunja cha epoxy choteteza moto ndikusinthidwa kolemetsa-ntchito yolimbana ndi dzimbiri epoxy utomoni wa ufa, womwe uli ndi kukana kwa dzimbiri kwa mankhwala. Imathetsa mavuto ambiri monga dzimbiri pamwamba ndi mkati mwakhoma makulitsidwe ofanana mankhwala pambuyo ntchito yaitali, kuti kupewa blockage mkati okhudza ntchito, kuti kwambiri patsogolo moyo utumiki wa mapaipi apadera ozimitsa moto. Chifukwa cha kuwonjezeredwa kwa zipangizo zoyaka moto muzovala, kukana kwa kutentha kwa mankhwalawa kumakhala bwino poyerekeza ndi zinthu zina zofanana. Choncho, sizidzakhudza kugwiritsidwa ntchito pamene kutentha kozungulira kumakwera kwambiri. Moyo wautumiki ndi magwiridwe antchito a mapaipi oyaka mkati ndi kunja ndi abwino kwambiri kuposa mapaipi opaka malata. Mtundu ndi wofiira.

Fakitale yathu imagwira ntchito popanga chitoliro chamoto, chitoliro chachitsulo chamalata, chitoliro chopaka ufa, chitoliro chopaka ufa ndi chitoliro chachitsulo cha inchi 6. Kugwiritsa ntchito: madzi amoto, gasi wopereka ndi thovu lapakati pamapaipi oyendera. Ubwino wa mankhwala umadutsa miyambo ndikudutsa mayesero angapo musanachoke ku fakitale. Tsatirani miyezo yapadziko lonse lapansi komanso yapadziko lonse lapansi.

(1) Makina apamwamba kwambiri. Utoto wa Epoxy umakhala ndi mgwirizano wamphamvu komanso wowundana wa mamolekyulu, motero mawonekedwe ake amakina ndi apamwamba kuposa utomoni wamba wa thermosetting monga phenolic resin ndi polyester wosaturated.

(2) Kupaka kwa chitoliro chamoto chophimbidwa ndi pulasitiki kumatenga utomoni wa epoxy, womwe umamatira mwamphamvu. Makina ochiritsa a epoxy resin ali ndi gulu la epoxy, gulu la hydroxyl, bondi ya ether, chomangira cha amine, chomangira cha ester ndi magulu ena a polar omwe ali ndi ntchito yayikulu, yomwe imapatsa epoxy mankhwala ochiritsidwa bwino kumamatira kuzitsulo, zoumba, galasi, konkire, matabwa ndi magawo ena a polar.

(3) Kuchepetsa pang'ono pochiritsa. Nthawi zambiri 1% ~ 2%. Ndi imodzi mwa mitundu yomwe ili ndi shrinkage yaying'ono kwambiri yochiritsa pakati pa ma resins a thermosetting (phenolic resin ndi 8% ~ 10%; unsaturated polyester resin ndi 4% ~ 6%; silicone utomoni ndi 4% ~ 8%). Mzere wowonjezera wowonjezera ndi wochepa kwambiri, nthawi zambiri 6 × 10-5/℃. Choncho, voliyumuyo imasintha pang'ono mutachiritsa.

(4) Kuchita bwino. Utomoni wa epoxy kwenikweni sutulutsa kutsika kwa ma molekyulu panthawi yakuchiritsa, kotero ukhoza kupangidwa pansi pa kupanikizika kochepa kapena kukhudzana. Imatha kugwirizana ndi machiritso osiyanasiyana kuti apange zokutira zokondera zachilengedwe monga zopanda zosungunulira, zolimba kwambiri, zokutira zaufa ndi zokutira zotengera madzi.

(5) Kusungunula kwamagetsi kwabwino kwambiri. Epoxy utomoni ndi thermosetting utomoni ndi zabwino antistatic katundu.

(6) Kukhazikika kwabwino komanso kukana kwamankhwala. Epoxy resin popanda alkali, mchere ndi zonyansa zina sizovuta kuwonongeka. Malingana ngati zasungidwa bwino (zosindikizidwa, zopanda chinyezi ndi kutentha kwakukulu), nthawi yosungiramo ndi 1 chaka. Pambuyo pa tsiku lotha ntchito, ngati kuwunika kuli koyenera, kumatha kugwiritsidwa ntchito. Epoxy kuchiritsa mankhwala ali ndi kukhazikika kwa mankhwala. Kukana kwake kwa dzimbiri kwa alkali, asidi, mchere ndi zina zambiri kuposa unsaturated polyester resin, phenolic resin ndi zina thermosetting resins. Chifukwa chake, epoxy resin imagwiritsidwa ntchito kwambiri ngati anti-corrosion primer. Chifukwa utomoni wochiritsidwa wa epoxy uli ndi mawonekedwe atatu a netiweki ndipo umatha kukana kulowetsedwa kwamafuta, umagwiritsidwa ntchito kwambiri mkati mwa khoma lamkati la akasinja amafuta, matanki amafuta ndi ndege.

Chithunzi 1 chitoliro chamoto

Chithunzi 1 chitoliro chamoto (5 zidutswa)

(7) The kukana kutentha kwa epoxy kuchiritsa pawiri zambiri 80 ~ 100 ℃. Mitundu yosamva kutentha ya epoxy resin imatha kufika 200 ℃ kapena kupitilira apo.