He aha te rerekētanga i waenga i te rapa silicone me te EPDM?

I te wā e whiriwhiri ana i te rapa hei whakamahi, he maha ngā Kaihanga e hiahia ana ki te whiriwhiri i waenga i te silicone, i te EPDM rānei. He pai ake ki a mātou te silicone(!) engari me pēhea te ōrite o ngā mea e rua? He aha te EPDM, ā, ki te mea me whiriwhiri koe i waenga i ngā mea e rua, me pēhea tāu whakatau? Anei tā mātou aratohu tere mō te EPDM…

 

He aha te EPDM?

Ko te EPDM he whakarāpopototanga mō te Ethylene Propylene Diene Monomers, ā, he momo rapa hangai matotoru. Kāore e ātete ki te wera pērā i te silicone engari ka taea te tu atu i ngā pāmahana teitei tae atu ki te 130°C. Nā reira e whakamahia ana hei wāhanga i roto i te whānuitanga o ngā ahumahi tae atu ki te ahumahi, te hanga me te motuka. I ngā pāmahana iti iho, ka eke te EPDM ki te pūwāhi pakarukaru i te -40°C.

He rongonui hoki te EPDM hei rapa mō waho nā te mea he ātete ki te huarere tae atu ki te ātete waikawa me te kawakore. Nō reira, ka kitea pea e koe te whakamahinga mō ngā mea pēnei i te hiri matapihi me te tatau, ngā pepa ārai wai rānei.

He pai anō hoki te ātete o te EPDM ki te pakū, ki te tipu tapahi, me te ātete ki te haehae.

 

He aha atu anō ngā mea ka taea te tuku mai e te silicone?
Ahakoa he maha ngā āhuatanga o te silicone me te EPDM, pērā i te ātete pai ki te taiao, he maha anō hoki ngā rerekētanga nui, ā, he mea nui kia mōhiotia ēnei i a koe e whakatau ana i te hoko.

He ranunga waro, hauwai, hāora me te silicone te silicone, ā, he maha ngā painga o tēnei ranunga kāore i te EPDM. He ātete ake te silicone ki te wera, ka taea te tu atu ki ngā pāmahana tae atu ki te 230°C me te pupuri tonu i ōna āhuatanga ā-tinana. Heoi anō, he elastomer parakore hoki, nō reira he rongonui i roto i ngā ahumahi kai me te inu. I ngā pāmahana iti iho, ka nui ake te silicone i te EPDM, ā, kāore e tae ki te pūwāhi pakarukaru tae noa ki te -60°C.

He nui ake te totoro o te silicone, ā, he roa ake te whakaroa i te EPDM. Ka taea hoki te hanga kia rite te ātete ki te haehae ki te EPDM. Nā ēnei āhuatanga e rua i pai ai mō te whakamahi hei kiriuhi korehau i roto i ngā mīhini e whakamahia ana hei hanga panera rā me ngā tāonga kua whakakikoruatia, e kiia ana he mīhini hanga korehau.

He elastomer pumau ake te silicone, ā, nā reira, e whakaaro ana ngā kaihoko he pai ake te silicone hei otinga haumaru mō te wā roa. Ahakoa e kiia ana ko te silicone te mea utu nui o ngā mea e rua, he poto ake te roa o te ora o te EPDM i te silicone, nō reira me whakakapi pinepine. Ko te hua o tēnei, he nui ake te utu mō te wā roa i te silicone.

Hei whakamutunga, ahakoa ka pupuhi te EPDM me te silicone mēnā ka whakanohoia ki roto i te hinu mō ngā wā roa i ngā pāmahana tiketike, he ātete te silicone ki ngā hinu kai i te pāmahana rūma, koia i whakamahia ai i roto i te tukatuka hinu kai hei hiri me te gasket mō ngā mīhini tukatuka.

 

Me pēhea te whiriwhiri i waenga i ngā mea e rua?
Ahakoa he whakarāpopototanga noa iho tēnei aratohu poto i ētahi o ngā rerekētanga i waenganui i ngā mea e rua, ko te huarahi pai ki te whakatau ko tēhea rapa e hiahiatia ana e koe ko te mārama ki te kaupapa o te whakamahinga me te tono tika. Mā te tautuhi me pēhea te whakamahi, ngā āhuatanga ka pā ki a ia, me te āhua o tana mahi, ka mārama ake ai tō tirohanga ki te rapa hei whiriwhiri.

Me whakaaro hoki ki ngā āhuatanga pēnei i te kaha, te ngāwari me te taumaha e tika ana kia tu atu te rauemi, nā te mea he mea nui ēnei hei whakatau. Ina whiwhi koe i ēnei mōhiohio, ka taea e tā mātou aratohu whānui mō te Silicone Rubber vs EPDM te whakarato i ngā mōhiohio hohonu e hiahiatia ana e koe hei whakatau i tāu whakatau whakamutunga.

Mena kei te hiahia koe ki te kōrero mō ō hiahia kaupapa me tētahi o tā mātou tīma, kei reira tonu tētahi e wātea ana. Whakapā mai ki a mātou.