Phello ea vulcanization ho sebopeho le thepa:
Ts'ebetsong ea tlhahiso ea lihlahisoa tsa rabara, vulcanization ke mohato oa ho qetela oa ts'ebetso.Ts'ebetsong ena, rabara e na le letoto la liphetoho tse rarahaneng tsa lik'hemik'hale, e fetoha ho tloha mohahong o lekaneng ho ea mohahong o bōpehileng joaloka 'mele, e lahleheloa ke polasetiki ea rabara e tsoakiloeng le ho ba le elasticity e phahameng ea rabara e amanang le sefapano, kahoo e fumana mokhoa o babatsehang oa' mele le oa mechine. thepa, ho hanyetsa mocheso Ts'ebetso, ho hanyetsa solvent le ho hanyetsa ha kutu ho ntlafatsa boleng ba tšebeliso le mefuta e mengata ea tšebeliso ea lihlahisoa tsa rabara.
Pele ho vulcanization: sebopeho sa linear, intermolecular interaction by van der Waals force;
Thepa: polasetiki e kholo, bolelele bo phahameng, le ho qhibiliha;
Nakong ea vulcanization: molek'hule e qalisoa, 'me karabelo ea lik'hemik'hale ea lik'hemik'hale e etsahala;
Ka mor'a vulcanization: sebopeho sa marang-rang, intermolecular le litlamo tsa lik'hemik'hale;
Sebopeho:
(1) Tlamo ea lik'hemik'hale;
(2) Boemo ba bonto e kopanyang;
(3) Degree ea cross-linking;
(4) Khokahano e fapaneng;.
Thepa:
(1) Thepa ea mochine (matla a ho lelefatsa kamehla. Ho thatafala. Matla a tsitsitseng. Elongation. Elasticity);
(2) Lintho tse bonahalang
(3) Ho tsitsa ha lik'hemik'hale ka mor'a vulcanization;
Liphetoho tsa thepa ea rabara:
Ho nka rabara ea tlhaho e le mohlala, ka keketseho ea tekanyo ea vulcanization;
(1) Liphetoho tsa thepa ea mochine (elasticity. Tear strength. Elongation strength. Tear strength. Thatness) ea eketseha (elongation. Compression set. Mokhathala mocheso moloko) fokotseha.
(2) Liphetoho tsa thepa ea 'mele, ho kenella ha moea le ho fokotseha ha metsi, ho ke ke ha qhibiliha, ho ruruha feela, ho ntlafatsa ho hanyetsa mocheso.
(3) Liphetoho tsa botsitso ba lik'hemik'hale
Keketseho ea botsitso ba lik'hemik'hale, mabaka
a.Karabelo ea li-cross-linking e etsa hore lihlopha kapa liathomo tse sebetsang ka lik'hemik'hale li se hlole li le teng, ho etsa hore ho be thata hore ts'ebetso ea botsofali e tsoele pele.
b.Sebopeho sa marang-rang se sitisa ho ata ha limolek'hule tse tlase, ho etsa hore ho be thata hore li-radicals tsa rabara li hasane.
Khetho le Boikemisetso ba Maemo a Rubber Vulcanization
1. Khatello ea Vulcanization
(1) Khatello e lokela ho sebelisoa ha lihlahisoa tsa rabara li senyeha.Sepheo ke ho:
a.Thibela rabara hore e se ke ea hlahisa li-bubble le ho ntlafatsa compactness ea rabara;
b.Etsa hore thepa ea rabara e phalle 'me u tlatse hlobo ho etsa lihlahisoa tse nang le mekhoa e hlakileng
c.Ntlafatsa ho khomarela pakeng tsa lera ka 'ngoe (sekgomaretsi lera le lesela lera kapa lesela lera kapa tšepe lera, lesela lera le lesela lesela) ka sehlahiswa, le ho ntlafatsa thepa ea' mele (tse kang ho hanyetsa flexural) ea vulcanizate.
(2) Ka kakaretso, khetho ea khatello ea vulcanization e lokela ho khethoa ho latela mofuta oa sehlahisoa, foromo, polasetiki le lintlha tse ling.
(3) Ha e le hantle, melao e latelang e lokela ho lateloa: polasetiki e kholo, khatello e lokela ho ba e nyenyane;botenya ba sehlahisoa, palo ea lihlopha, le mohaho o rarahaneng o lokela ho ba kholoanyane;khatello ea lihlahisoa tse tšesaane e lokela ho ba nyenyane, esita le khatello e tloaelehileng e ka sebelisoa
Ho na le mekhoa e 'maloa ea vulcanization le khatello ea maikutlo:
(1) Pompo ea hydraulic e fetisetsa khatello ho hlobo ka vulcanizer e bataletseng, ebe e fetisetsa khatello ho motsoako oa rabara ho tloha hlobo.
(2) Ho hatelloa ka ho toba ke mokhoa oa vulcanizing (joalo ka mouoane)
(3) Ho hatelloa ke moea o hatelitsoeng
(4) Ente ka mochine oa ente
2. Vulcanization mocheso le ho phekola nako
Mocheso oa vulcanization ke boemo ba mantlha ba karabelo ea vulcanization.Mocheso oa vulcanization o ka ama ka kotloloho lebelo la vulcanization, boleng ba sehlahisoa le melemo ea moruo ea khoebo.Mocheso oa vulcanization o phahame, lebelo la vulcanization le potlakile, 'me katleho ea tlhahiso e phahame;ho seng joalo, katleho ea tlhahiso e tlaase.
Ho eketsa mocheso oa vulcanization ho ka baka mathata a latelang;
(1) E baka ho phatloha ha ketane ea limolek'hule tsa rabara le phetoho ea vulcanization, e bakang phokotso ea thepa ea mochini oa motsoako oa rabara.
(2) Fokotsa matla a masela lihlahisoa tsa rabara
(3) Nako ea ho chesa ha motsoako oa rabara e khutsufatsoa, nako ea ho tlatsa e fokotsehile, 'me sehlahisoa se haelloa ke karolo ea sekhomaretsi.
(4) Hobane lihlahisoa tse teteaneng li tla eketsa phapang ea mocheso pakeng tsa ka hare le ka ntle ho sehlahisoa, e leng se tla fella ka vulcanization e sa tšoaneng.
Nako ea poso: May-18-2022