izindaba

Ukuhlolwa kwekhwalithi kweama-phenolic molding compounds(eyenziwe nge-phenolic resin matrix enezigcwalisi ezengeziwe, ama-curing agents, izinto zokugcoba, njll., ezisetshenziswa kakhulu ekubumbeni kokucindezela) kumele zimboze ubukhulu obuyinhloko okuhlanganisa ukubukeka, ukusebenza kokucubungula, izakhiwo zomzimba nezemishini, izakhiwo zokushisa, kanye nokumelana namakhemikhali ukuqinisekisa ukuhambisana nezidingo zokubumba kanye nokusebenza komkhiqizo. Izinto zokuhlola ezithile kanye nokucatshangelwa yilezi ezilandelayo:

Ukubukeka Okuyisisekelo Nokuhlolwa Kwekhwalithi Yokubonakala

Ukubukeka kusebenza njengesibonakaliso esinembile sokuhlolwa kwekhwalithi yokuqala, okubonisa ngqo ukufana kokuxuba izinto zokusetshenziswa kanye nokufakwa kwe-pellet (noma ukulungiswa kwempuphu) ngesikhathi sokukhiqiza. Izinto ezithile zokuhlola zifaka:

Umbala Nokufana

Imfuneko: Imikhiqizo engaphakathi kweqoqo elifanayo kumele ibonise umbala ohambisanayo ngaphandle komehluko wombala obonakalayo (kunokuqinisekiswa ngokuqhathanisa okubonakalayo namashadi ombala ajwayelekile noma ukulinganisa inani kusetshenziswa imitha yomehluko wombala).

Ukubaluleka: Ukwehluka kombala kungabangelwa ukwehluka kwe-resin batch, ukusabalala kokugcwalisa okungalingani, noma ukushintshashintsha kwezinga lokushisa, okuthinta ukuhambisana kokubonakala komkhiqizo wokugcina.

Isimo se-granule/Powder

Ama-granules: Hlola ukuma okuyisiyingi, ukungabikho kwe-agglomeration noma ukuphuka (izinga lokuphuka kumele libe yi-≤ inani elicacisiwe, ngokuvamile i-≤3%), kanye nokusatshalaliswa kosayizi wezinhlayiya ezifanayo (kunokuqinisekiswa ngokuhlaziywa kwesihlungo okujwayelekile; isib., amaphesenti angu-20-60 e-mesh kumele ahlangabezane nezindinganiso zenkampani).

Impuphu: Ayinazo izigaxa nezinto zangaphandle (isb., ukungcola kwensimbi, izigaxa zefayibha). Hlola usebenzisa isikrini se-mesh eyi-100; insalela kumele ibe ngu-≤0.5%.

Ukungcola kanye namaphutha

Hlola ngokubona noma ngengilazi yokukhulisa. Ukungcola okufana nokunqunywa kwensimbi, amatshe, noma izigaxa ze-resin ezingahlakazekile akuvunyelwe. Izindawo ze-granule/ze-powder kumele zingabi namabala kawoyela noma amabala esikhunta (ukuvimbela amabhamuza noma ukuqhekeka ngesikhathi sokubumba).

Ukuhlolwa Kokusebenza Kokucubungula

Ukusebenza kokucubungula kwamakhemikhali okubumba e-phenolic kunquma ngqo ukulula kokubumba kokucindezela kanye nesilinganiso sokukhiqizwa komkhiqizo. Izinto zokuhlola eziyinhloko zifaka:

1. Ukugeleza (Izici Zokugeleza Kokuncibilika)

Indlela Yokuhlola: Ngokuvamile Indlela Yobude Bokugeleza Okujikelezayo (nge-GB/T 14049-2008 “Izinhlanganisela Zokubumba Ze-Phenolic"). Faka inhlanganisela yokubumba ku-mold ejikelezayo ekushiseni okubekiwe (isb., 160-180°C) kanye nokucindezela (isb., 5-10 MPa), bese ulinganisa ubude be-spiral eyakhiwe ukuncibilika okugelezayo.

Izindlela Zokwahlulela: Ukuphambuka kobude bokugeleza ngaphakathi kweqoqo elifanayo kumele kube ≤±10%. Amanani athile kufanele afane nesakhiwo somkhiqizo (imikhiqizo eyinkimbinkimbi enezindonga ezincane idinga ukugeleza okuphezulu, kuyilapho imikhiqizo enezindonga ezinkulu idinga ukugeleza okuphakathi ukuze kuvinjelwe ukugcwala).

Ukubaluleka: Ukugeleza okuphansi kakhulu kungabangela ukugcwaliswa okungaphelele noma izikhala zamakhona emikhiqizweni; ukugeleza okuphezulu kakhulu kungaholela ekukhanyeni noma ekuchichimeni, okwandisa izindleko zangemva kokucubungula.

2. Isivinini Sokwelapha (Isikhathi Sejeli Nesikhathi Sokwelapha)

Isikhathi sejeli: Lilinganisa isikhathi kusukela ekushiseni kuya ekulahlekelweni kokugeleza (isimo sejeli) ekushiseni okucacisiwe (isb., 175°C) (nge-GB/T 14049). Ngokuvamile kuyadingeka: imizuzwana engama-50-150 (kulungiswe ngokusekelwe ekujikeni kwengxenye; izingxenye ezijiyile zidinga isikhathi eside sejeli ukuvimbela ukungomi kwangaphakathi).

Isikhathi Sokuphola: Kukala isikhathi esidingekayo sokupholisa ngokuphelele ekushiseni okucacisiwe kanye nengcindezi (okunqunywa izinguquko zobulukhuni kumasampula okuhlola abunjiwe; isib., ubulukhuni beBarcol obungu-80 noma ngaphezulu bubonisa ukupholisa okuphelele). Ngokuvamile isikhathi sejeli siphindwe kathathu kuya kahlanu.

Ukubaluleka: Ukwelapha ngokushesha okukhulu kungabangela ukucindezeleka kwangaphakathi kanye nokuqhekeka kwemikhiqizo; ukwelapha okuhamba kancane kakhulu kwandisa imijikelezo yokukhiqiza futhi kunciphisa ukusebenza kahle.

3. Izinga Lokuncipha (Ukuzinza Okulinganayo Ngemva Kokwakheka)

Indlela Yokuhlola: Bumba isampula ejwayelekile (isb., 120mm × 120mm × 3mm). Ngemva kokupholisa kufike ekushiseni kwegumbi, kala ubukhulu bangempela besampula. Qhathanisa lokhu nobukhulu besikhunta ukuze ubale izinga lokuncipha (Izinga Lokuncipha = (Ubukhulu Besikhunta – Ubukhulu Besifanekiso) / Ubukhulu Besikhunta × 100%).

Imigomo Yokwahlulela:Inhlanganisela yokubumba ye-phenolicUkuncishiswa ngokuvamile kusuka ku-0.4% kuya ku-1.2% (kuphansi ngezigcwalisi ezingaphili, kuphakeme kancane ngezigcwalisi eziphilayo). Ukuncishiswa kwenqwaba kumele kube ngu-≤±0.2% ukuvimbela ukuphambuka kobukhulu emikhiqizweni eqediwe.