Ena ke ts'ebetso ea tlhahiso ea khoebo ea tlhahiso ea lebokose la lijo, o ka bua ka ho ithuta tsebo e nepahetseng earotomolding.
Rotomolding ke mokhoa o mocha le o tsoetseng pele oa tlhahiso ea ts'ebetso ea polasetiki, e khetholloang ka:
1, e loketseng ho sebetsalihlahisoa tse kholo tse sekoti, joalo katanka ea metsi, tanka ea oli, thepa e kholo ea boithabiso, lebota la ho itšehla thajana, joalo-joalo.
2,Litsenyehelo tsa ho sebetsa li tlase, haholo-holo litšenyehelo tsa hlobo ke 1/3 feela ea hlobo ea ente.Bofokoli ba eona ke tlhoko e phahameng ea lisebelisoa tse tala, 'me ho nepahala ha ts'ebetso ea sehlahisoa se felileng ho fokola ha ho bapisoa le ho bopa ente.
Mokhoa oa eona oa tlhahiso ke o latelang:
一,Tokisetso ea lihlahisoa tse tala
(一) Litlhoko tsa thepa e tala bakeng sarotomolding tlhahiso
1.melting index hangata ha e fete 5.0g/10min.
2.powder particles 30 ~ 60 mesh (likaroloana tse pota-potileng li ke ke tsa e-ba le palo e kholo ea mohatla le li-prism, likaroloana tsa flake).
3.omella.
(二) Litlhoko tsa thepa e tala bakeng satlhahiso ea polasetiki
LLDPE ea thapo e le 'ngoe e thata ho netefatsa litlhoko tse khethehileng tsa lihlahisoa (joalo ka mabokose a polokelo ea ntoa a hlahisoang ke k'hamphani ea rona), kahoo lisebelisoa tse kopantsoeng (tse tsejoang hape e le phetoho ea polasetiki) li sebelisoa ka kakaretso, joalo ka lisebelisoa tsa 7042 le UR644 tse nang le mokelikeli o motle. empa matla a sa lekaneng.Kahoo ho netefatsa boleng ba lihlahisoa tse ikhethileng, 7042, 6090, 500S kapa UR644, A760.Foromo e khethehileng ea lihlahisoa tse tala e fumanoa ka mor'a mashome a limilione a liteko tsa saense, e le lekunutu, e na le tokelo ea molao, mang kapa mang a ke ke a fetola foromo ntle le tlhahlobo.
Sehlahisoa se le seng se khethehileng se boetse se lokela ho ekeletsoa ho latela ts'ebetso ea sehlahisoa, tse ling tsa master, li-antioxidants, joalo ka tlhahiso ea 'mala ho ikopanya le moqolo oa sehlopha sa polasetiki.Sehlahisoa se sebelisoa ka ntle ka nako e telele, se eketsa li-antioxidants, tlhahiso ea lisebelisoa tse thibelang mollo, li-anti-aging agents, bahlahisi joalo-joalo.
(三) ts'ebetso e khethehileng ea theknoloji
1. Ho ea ka tlhophiso ea moeta-pele, mefuta eohle ea lisebelisoa tse tala le li-accelerator tse thathamisitsoeng ka foromo ea sehlahisoa li kenngoa ka har'a motsoako ke basebetsi ba khethiloeng ka ho khetheha, 'me motsoako o kopantsoe qalong ea motsoako.Nako ea ho kopanya ke > metsotso e 10 (motsoako o arotsoe ka motsoako o tloaelehileng le motsoako oa lebelo le phahameng, 'me ho kgothaletswa ho sebelisa mixer e phahameng haholo haeba letlole le lumela. Ntlha ea bohlokoa ea ts'ebetso ena ke karolelano e nepahetseng ea mefuta eohle ea lisebelisoa tse tala, tse tlamehang ho sebelisoa ka lisebelisoa tsa maemo a tšoanelehang.
2, mochini o sebetsang oa mochini oa granulation o nang le letsoho la disk motor pulley, mochini o ka matha habonolo, thepa ka mor'a ho kopanya batch mochining oa granulation, konopo ea motor joalo-joalo.Ka mor'a hore ammeter ea motlakase e phahame, koala konopo ea ho futhumatsa 'me u fetole mocheso oa sebaka sa ho futhumatsa.Khamphani ea ka e rekile mochini oa granulating o arotsoe ka libaka tse 'ne tsa ho futhumatsa, ho tloha ho hopper ho ea pele: sebaka ka seng, ka kakaretso 150 ℃.Sebaka sa bobeli ke 180 ℃.Ka mor'a ho qeta sebaka sa boraro 180 ℃.Nko ke 190 ℃.
Ka mor'a hore mochini oa thepa o fetisitsoeng o pholile ka tanka ea metsi, o kenngoa ka har'a granulator 'me mochine oa matla oa granulator o koetsoe.Mochini oa pelleting o tla hula ka bohona ka har'a sekoaelo sa thepa bakeng sa pelleting.Ho etsa mochini o sebetsang o lokela ho ela hloko ts'ebetso ea extruder, haeba ho lebeletsoe hore ho fumanoe hore ho na le ho lebeletsoe ho penya ka ntle, ho lokela ho khaoloa hang-hang mohloli oa motlakase 'me u lule ka mor'a hore mochine o khaotse ho sebetsa ka ho feletseng, ho fetoha ka letlooeng le lecha. (lerata la khale ntle le tšenyo ka mor'a mollo, le ntse le ka tsoela pele ho sebelisa), le buloa hape granulator ea extrusion, lisebelisoa tsa polasetiki tsa k'hamphani e le thepa e ncha, Ha e le hantle, e ka fetoloa hang ka letsatsi.Ka mor'a extrusion, thepa e lokela ho omisoa hantle moeeng ho ea ka boemo ba sebele ba thepa pele ho granulation.
Sepheo sa mokhoa ona ke ho fetola thepa e tala.Tlhokomeliso: Mocheso oa mocheso oa lisebelisoa tse tala o lokela ho fetoloa ho latela lisebelisoa tse fapaneng tse tala.
Extruder granulator e na le sekoti se habeli le sekoti se le seng, sehiloeng se batang le lintlha tse chesang, k'hamphani e sebelisa granulator e sehiloeng ka serame.
3. Ho sila phofo ke ts'ebetso e hlokahalang pele ho hlahisa tlhahiso hobane thepa e sebelisoang tlhahiso ea ho roala ke phofo, 'me thepa e tala e rekiloeng ke' maraka ke lisebelisoa tsa granule.Ka mor'a hore mochine oa granulator a hlahlobe hore na ha ho na lintho tse tsoang linaheng tse ling ka mochine, lisebelisoa tsa granular ka mor'a hore granulation li kenngoe ka har'a hopper, mochine oa ho sila o qala, 'me lebelo la ho fepa le lokisoa bakeng sa ho sila.Kamora ho sila, lisebelisoa tse tala li tla omisoa ka mokhoa o nepahetseng, 'me mocheso oa ho omisa ha oa lokela ho feta 30 ℃.
Ts'ebetso ena e lebisa tlhokomelo ho boleng ba phofo e sila, boholo ba likaroloana tsa 30 ~ 60 mesh, likaroloana tse pota-potileng, ha ho na metse, likhutlo, li-flake, li-trailing particles.
Nako ea poso: Oct-28-2022