Prepreg yowunikira sikuti imangokhala ndi ntchito yabwino yomanga, komanso imalimbana ndi dzimbiri ku ma acid, ma alkali, mchere ndi zinthu zina zachilengedwe, komanso mphamvu yabwino yamakina ikatha kuuma, monga FRP yachikhalidwe. Makhalidwe abwino awa amapangitsa kuti prepreg yowunikira ikhale yoyenera kugwiritsa ntchito mankhwala, matanki osungira mafuta, mapaipi omwe ali pamwamba pa nthaka ndi pansi pa nthaka, ndi zina zotero, kuti apange zida zotsutsana ndi dzimbiri zomwe zimagwira ntchito bwino kwambiri.
1. Kugwiritsa ntchito thanki yosungiramo mafuta yoteteza dzimbiri
Poyerekeza ndi njira yokonza zinthu zolumikizirana, chifukwa chopangira kuwala chimatha kupangidwa kukhala mapepala kapena mipukutu, ndipo pali mafilimu apulasitiki pamwamba ndi pansi, kusinthasintha kwa solvent panthawi yomanga kumakhala kochepa, zomwe zimapangitsa kuti malo omangawo akhale otetezeka komanso otetezeka. Chopangira kuwala chosakonzedwa ndi chofewa ndipo chimatha kudulidwa kapena kudulidwa malinga ndi zosowa za polojekitiyo kenako nkuchigwiritsa ntchito mwachindunji. Chimachiritsidwa ndi kuwala kwa UV. Nthawi yochizira ndi mphindi 10 mpaka 20 zokha. Sichikhudzidwa kwambiri ndi chilengedwe ndipo chingagwiritsidwe ntchito chaka chonse. Ntchito yomanga, ingagwiritsidwe ntchito nthawi yomweyo ikatha kukonzedwa, zomwe zimachepetsa kwambiri nthawi yomanga komanso ndalama zogwirira ntchito.
Ku siteshoni ya mafuta ya PetroChina Chongming No. 3, chipangizo choyeretsera mafuta chokonzedwa ndi MERICAN 9505 chinagwiritsidwa ntchito kukonzanso mkati mwa thanki yosungiramo mafuta. Mikhalidwe yoyenera yomangira ikuwonetsedwa pachithunzi chili pansipa. Kulimba kwake kumatha kufika madigiri 60, ndipo kumakhala ndi kukana dzimbiri bwino.
2. Kugwiritsa ntchito mankhwala oletsa dzimbiri mu payipi yobowola yolunjika
Kuboola molunjika ndi njira yomangira mapaipi mumakampani opanga ukadaulo wauinjiniya. Kumagwiritsidwa ntchito kwambiri popanga mafuta, gasi wachilengedwe ndi mapaipi ena a boma. Momwe mungatetezere chidebe chakunja choletsa dzimbiri panthawi yoboola molunjika mapaipi nthawi zonse chakhala vuto lalikulu pantchito yomanga mapaipi. Mapaipi ambiri osinthasintha amagwiritsidwa ntchito poboola molunjika, ndipo kuuma kwa gawo loletsa dzimbiri pamwamba pa thupi la mapaipi sikokwanira. Panthawi yokoka, gawo loletsa dzimbiri nthawi zambiri limasweka kapena m'mphepete mwa zinthu zomangira zimakhala zopotoka kapena zosweka, zomwe zimakhudza mphamvu yoletsa dzimbiri ndipo zimaika pachiwopsezo chitetezo cha mapaipi. Poganizira mavuto omwe ali pamwambapa, prepreg yokonzedwa bwino ingagwiritsidwe ntchito ngati gawo loteteza gawo lakunja la mapaipi. Zinthu zake zazikulu ndi kuuma kwakukulu, kukana kukanda ndi kukana kukangana, zomwe zimatha kuteteza bwino gawo loletsa dzimbiri.
Kuyerekeza kwa chikwama choteteza kuwala musanagwiritse ntchito payipi yobowolera yolunjika komanso mutagwiritsa ntchito kwawonetsedwa pachithunzi chotsatirachi:
Zitha kuoneka bwino kuchokera ku kuyerekeza kuti gawo la prepreg lokonzedwa ndi kuwala lili ndi mphamvu yabwino yoteteza paipi ndipo limapangitsa kuti payipiyo isagwe ndi dzimbiri.
3. Kugwiritsa ntchito thanki yosungiramo mafuta ndi gasi polimbana ndi dzimbiri
Matanki ambiri osungiramo mafuta ndi gasi ndi matanki achitsulo. Popeza mafuta ndi gasi nthawi zambiri amakhala ndi zinthu zowononga, dzimbiri la matanki achitsulo ndi lalikulu kwambiri. Mwachitsanzo, kutentha kwambiri mu thanki, mpweya woipa monga mpweya wosungunuka, hydrogen sulfide ndi carbon dioxide zimasinthasintha ndikuyambitsa dzimbiri lamphamvu pamwamba pa thanki, zomwe zimapangitsa kuti pamwamba pa thanki pakhale kuwonongeka kwakukulu, zomwe sizimangoyambitsa kutayika kwakukulu kwa mafuta ndi gasi, komanso zimawonjezera chitetezo. Kuti matanki osungiramo mafuta ndi gasi agwiritsidwe ntchito mosamala, kukonza kapena kusintha pamwamba pa thanki kumafunika nthawi zambiri. Njira yachikhalidwe yokonzera denga la thanki ndikusintha mbale yachitsulo ya thanki yachitsulo, zomwe zimafuna kuti thanki iyimitsidwe, iyeretsedwe, gawo lomanga lipange njira zotetezera, ndipo dipatimenti yachitetezo ivomereze zigawo ndi zigawo. Nthawi yomanga ndi yayitali ndipo mtengo wokonzanso ndi wokwera. Komabe, pogwiritsa ntchito prepreg yowunikira kuwala, pamwamba pa thanki yomwe ilipo imagwiritsidwa ntchito ngati template, ndipo imapangidwa ndikudulidwa pamalopo, ndipo imalumikizidwa ndi pamwamba pa thanki yachitsulo yoyambirira kuti ipange yonse. Potengera kulimba kwa pamwamba pa thanki yoyambirira, mphamvu ya gawo lophatikizana imachulukitsidwa ndipo ingagwiritsidwe ntchito ngati njira yatsopano yokonzanso denga la matanki osungira mafuta ndi gasi.
Kuwonjezera pa minda yolimbana ndi dzimbiri yomwe yatchulidwa pamwambapa, ma prepreg oletsa dzimbiri angagwiritsidwenso ntchito m'minda yolimbana ndi dzimbiri monga dziwe losambira m'malo obisika, mapaipi apansi panthaka, matanki osungiramo zinyalala m'malo otayira zinyalala, malo osungiramo sitima, ndi kukonzanso malo opangira magetsi. Pakadali pano, mapepala ambiri oletsa kuwala omwe ali pamsika ndi zinthu zochokera kunja, ndipo mtengo wake ndi wokwera, zomwe zimalepheretsa kugwiritsidwa ntchito kwawo. Komabe, ndi chithandizo cha boma, chidwi cha msika, komanso ndalama zambiri zofufuzira ndi chitukuko, padzakhala mitundu yambiri yosiyanasiyana ya mapepala oletsa kuwala omwe amagwiritsidwa ntchito m'magawo osiyanasiyana.
Nthawi yotumizira: Meyi-25-2022
