He whakarāpopototanga a BMC nōPūhui Whakarewa PapatipuI te reo Pākehā, ko te ingoa Hainamana ko te Bulk Molding Compound (e kiia ana hoki: unsaturated polyester glass fiber reinforced bulk Molding Compound) nā te ranunga tinana o te kapia wai, te kaihoko whakaheke iti, te kaihoko hono whakawhiti, te kaiwhakaoho, te whakakī, te muka karāhe poto me ētahi atu wāhanga. I roto i ngā āhuatanga pāmahana me te pēhanga, ka puta te tauhohenga polymerization i te hononga whakawhiti o te polyester unsaturated me te styrene. I raro i te pāmahana me te pēhanga, ka honoa te polyester unsaturated me te styrene ki te hononga whakawhiti me te whakamaroke mā te tauhohenga polymerization. Ko ōna āhuatanga miihini me ngā āhuatanga hiko tino pai, me te ātete wera me ngā āhuatanga tukatuka pai e whakamahia whānuitia ana i roto i ngā taputapu hiko, ngā taputapu, te hanga motuka, te rererangi, te kawe waka, me ngā ahumahi hanga.
Pūnaha whakatakotoranga
1. Kapia polyester kore-mākū: me te kapia motuhake smc/bmc, ko te nuinga he m-phenyl ake, he ātete pānga, he ātete waikura, he ātete pewa, he pai mō te hanga hua poraka, hua anisotropic rānei.
2. Kaihoko honohono; me te monomer styrene, ko te nui o te 30% ~ 40%, i runga i te ihirangi o ngā hononga takirua i roto i te polyester kore-mākū me te ōwehenga o ngā hononga takirua trans me ngā hononga takirua cis, he nui te ōwehenga o ngā monomer honohono, ka taea te whiwhi i te whakamaroke tino pai ake.
3. Ko te kaiwhakaoho me te kaihoko whakaora pāmahana teitei, tert-butyl peroxybenzoate (TBPB) no te kaihoko whakaora pāmahana teitei e whakamahia whānuitia ana, ko te pāmahana pirau wai o te 104 nekehanga te pāmahana whakarewa o te 135 ki te 160 nekehanga.
4. Ko ngā kapia kirihou wera he iti te whakaiti, ā, mā te whakamahi i te wera whakawhanui hei whakakore i te whakahekenga o te hanga. Ko te tikanga, me whakahaere te tere whakaiti o ngā hua i te 0.1~0.3%, nō reira me tino whakahaere te horopeta.
5. Ngā rauemi whakapakariKo te tikanga, ko te hononga e whakamahia ana he muka poto roa 6 ~ 12mm te tukatuka, he 6 te ātete mura, mā te whakamahi i te Al2O3.3H2O, me te tāpiri i tētahi iti o te ātete mura hou kei roto he ūkuikui, ā, ko te alumina waikura hoki te mea hei whakakī. Ka taea e ngā whakakī te whakaiti i te utu o te whakapai ake i ngā āhuatanga hiko me te ātete mura. Ko te konupūmā kāponāte te whakakī roa rawa atu e whakamahia ana, he pai te mahi whānui, ko te tikanga he paura iti, he pai te āhua i muri i te maimoatanga hononga, kātahi ka tāpirihia.
Te tukanga BMC
1. Kia tūpato ki te raupapa o te tāpiri rauemi. Mēnā ka whakaranua ki te mīhini pokepoke momo-z, he taputapu whakamahana kei te mīhini pokepoke, ahakoa he ōrite te ranunga, ka taea te kite i te tae o te whakapiri, te tae waro rānei, tata ki te 15 ~ 18 meneti.
2. Ka honoa te muka karāhe poto ki te mea whakamutunga, ka honoa wawe ki te maha o ngā muka whati, ka pā ki te kaha o te
3. Me penapena te rauemi BMC ki te pāmahana iti, ko te tikanga he 10 nekehanga Celsius, he teitei te pāmahana, he ngāwari te honohono me te whakamaroke i te kapia kore-mākū, ā, ka uaua te tukatuka i te hanga.
4. Te pāmahana whakapūtanga: 140 nekehanga pea, te pāmahana whakapūtanga o runga me raro 5 ~ 10 nekehanga, te pēhanga whakapūtanga 7mpa pea, te wā pupuri 40 ~ 80s/mm
Tātaritanga ahumahi
1. Te pakaru o te hua: he mea noa te pakaru o te hua, inā koa i ngā pāmahana iti o te takurua. Ko te mea e kiia nei ko te pakaru e pā ana ki ngā hua nā te ahotea o roto, te pānga o waho, ngā āhuatanga taiao me ētahi atu pānga ki te mata, ki ngā pakaru o roto rānei.
2. Otinga; inā koa mai i ngā rauemi mata, te ōwehenga me te tukanga hei whakaoti.
2.1 Te whiriwhiri me te tukatuka i ngā rauemi mata
1) Ko te kapia te pūtake o te bmc, te kapia polyester kāore i te mākū, te kapia vinyl ester,kapia phenolic, melamine, me ētahi atu. Ko te kapia te hua e whakamaroke ana, me te kaha taketake. Nō reira, ko te whakamahinga o te kapia motuhake smc/bmc, he kapia momo m-phenylene, he matotoru teitei ake te kapia m-phenylene i te momo o-phenylene, nō reira, hei tāpiri atu ki te kapia tonu he iti te whakahekenga, ka taea te tango i ngā monomer honohono atu, kia piki ake ai te kiato o te kiato, kia heke ai te tere whakahekenga.
(2) tāpirihia he iti te whakahekenga o te matū hiato; ko te tere whakahekenga o te kapia polyester kore-mākukū tae atu ki te 5 ~ 8%, ko te whakahekenga o te whakakī he nui ake i te 3%, ko te tere whakahekenga o te hua he nui ake i te 0.4% ki te pakaru, no reira tāpirihia he kapia thermoplastic, me te whakamahi i ngā kapia thermoplastic hei whakakore i te whakawhānui wera o te whakahekenga o te whakamahana o ngā wāhanga. Ko te pai ake o te whakaranu me te whakarewa i te pmma, te ps me te monomer styrene, ko te pai ake o te mutunga o te tāpiri o te pmma. Ka taea te whakahaere i te whakahekenga o te hua i te 0.1 ~ 0.3%.
(3) whakakī, ārai mura, muka karāhe; te roa o te muka karāhe – ko te tikanga he 6 ~ 12mm, i ētahi wā ka tutuki i ngā āhuatanga miihini teitei ki te 25mm; kia tutuki ai ngā whakaritenga o te rere o te hanga, ki te 3mm. Ko te ihirangi muka karāhe he 15% ~ 20% te tikanga; mō ngā hua mahi-teitei, ki te 25%. He iti ake te ihirangi muka karāhe BMC i te SMC, ka taea e koe te tāpiri atu i te whakakī, kia iti ake te utu hei hanga whakakī kore-waro. Hei hanga i te whakakī kore-waro, ārai mura, muka karāhe me te kapia, he iti ake te whakakotahitanga matū i waenga i te whakamahinga whānui o te kaihoko hononga silane i mua i te whakaranu, he pai te pānga KH-560, KH-570 hei hono i ngā rauemi totoka pai, micronized, pērā i te konupūmā kāponāte taumaha me te karaehe micronized, te rahi matūriki 1 ~ 10um (ōrite ki te 1250 mesh).
2.2 Ngā whakaritenga mō te taurite o te kapia turanga BMC, kaua e iti iho i te 20% te nui o te kapia turanga Bmc, ko te nui o te kapia e pā ana ki te nui o te kaihoko honohono, kāore e hiahiatia kia tāpirihia te nui o te kaihoko honohono ki roto i te kapia, ko te 35% te nui o te kapia, hei tāpiri atu ki te nui o te kaihoko whakaheke iti, ka whakawhirinaki hoki ki te nui o te kapia. He pai ake te whakamahi i te kaihoko whakaora pāmahana-tiketike TBPB, te whakakī me te aukati mura (konumohe hauwai) hei hono i te nui katoa o te 50%, he rua te nui o te kapia, ki te nui rawa te hononga ka pakaru te kaha o te hanganga, ka ngawari te pakaru!
2.3 Ngā āhuatanga o te tukanga whakaputa
(1) te whakaranu, tuatahi, i te whakaranu i te rauemi kia ōrite te whakaranu, ka tāpirihia he iti te taumaha motuhake ki te paura, kātahi ka tāpirihia he nui te taumaha motuhake, ka whakaranua te wai i te tuatahi, kātahi ka tāpirihia, ko te kaiwhakaoho te mea whakamutunga hei tāpiri, me tāpiri te whakamātotoru i mua i te pokepoke i te whakapiri kapia me te polystyrene. Ka tāpirihia te muka karāhe i roto i ngā puranga.
(2) Ngā āhuatanga o te tukanga whakarewa: ka pā tika ngā tawhā tukanga whakarewa ki te pai, ki te kino rānei o te hua. I te nuinga o te wā, ka piki ake te pēhanga whakarewa, ka heke te mimiti. Ki te tino teitei te pāmahana o te pokepokea ai, ka hanga he rārangi hanumi mata, kāore te rauemi i te ōrite, ka rerekē te ahotea o roto, ka ngāwari te pakaru. Mā te pupuri i te pēhanga mō te wā roa e tika ana ka ārai i te pakaru o ngā wāhanga.
(3) te pūnaha whakamahana-mua: he ngāwari te pakaru o ngā wāhanga pāmahana iti. Nō reira, me whakamahana te rauemi.
Wā tuku: Pipiri-10-2025
