Me pēhea te hanga kirihou kapia epoxy me ōna whakamahinga i roto i te umanga hangahanga
He rauemi pūmua rongonui te kapia epoxy nā te mea he kaha piripono teitei, he ātete matū pai, ā, he kaha miihini teitei ake i muri i te whakapakeketanga. I roto i te mahi, ko te kupu "kirihou kapia epoxy" e pā ana ki te hua whakamutunga o te epoxy kua whakapakeketia (kua whakamaroketia) hei hanga i tētahi rauemi totoka kaha, pakari, rite ki te kirihou. I roto i te umanga hanga, he whānuitia te whakamahinga o te epoxy hei piripiri hanganga, hei paninga papa, hei tiaki raima, tae atu ki te rauemi whakatika me te whakakaha mō ngā hanganga. Ka matapakihia e tēnei tuhinga te hanga kirihou mai i te kapia epoxy—mai i te whiriwhiri rauemi, te whakaranu, te ringihanga, me te whakamaroke—me ōna tono i roto i te umanga hanga.
He aha te Resin Epoxy?
He pūnaha wāhanga-rua te kapia epoxy: te kapia (wāhanga A) me te whakapakeke (wāhanga B). Ina whakaranua ngā mea e rua i roto i tētahi ōwehenga motuhake, ka puta he tauhohenga matū polymerization (whakawhiti hononga), ka huri te wai hei totoka mārō. Mā tēnei tukanga ka puta he "kirihou" epoxy. Kāore i rite ki te kāpia noa, e maroke ana nā te mimiti, ka whakapakeke te epoxy nā te tauhohenga matū, ka hua ake he hua kaha ake, he ātete ake e ātete ana ki te wai me ētahi matū.
I roto i te hanganga, he maha ngā wā ka whiriwhiria te epoxy nā te mea:
1. He tino piri ki te raima, te konganuku, te rakau me ētahi momo kōhatu.
2. He iti te mimiti ina whakapakeketia.
3. Te ātete ki te pakū me te ātete ki ētahi hinu/matū.
4. Ka taea te hanga: ka taea te whakamātotoru ake, te wai ake, te tere ake/te puhoi ake te whakapakeke, te whakaranu rānei ki te whakakī.
Ngā Rauemi me ngā Utauta mō te Hanga Kirihou Resin Epoxy
I mua i te tīmatanga, whakaritea ngā rauemi me ngā taputapu e whai ake nei:
Bahan
– Te kapia epoxy (A) me te whakamārō (B) e ai ki te waitohu/momo kua tīpakohia.
– Tae (kāore e hiahiatia) hei tae.
– Whakakī (whiringa): hei tauira, paraoa silica, poihau iti, paura kōhatu, onepu kiripaka pai, muka rānei, i runga i ngā hiahia. I roto i te hanganga, he maha ngā wā ka whakamahia te whakakī hei whakanui ake i te kaha pēhi, hei whakaiti i ngā utu, hei whakahaere rānei i te matotoru.
– He mea tuku (kāore e hiahiatia) mēnā he pokepokea hei tango ngāwari.
Tool
– Ngā pauna matihiko (e taunakitia ana) me ngā kapu ine rānei hei whakarite kia tika te ōwehenga.
– Ipu whakaranu (kirihou matotoru, karāhe whakaranu motuhake rānei).
– He spatula/he hoe whakaoho.
– He pokepokea ai, he mata mahi rānei hei paninga.
– He pū wera/rama iti (kāore e hiahiatia) hei āwhina i te tango i ngā mirumiru.
– Ngā taputapu tiaki whaiaro: karapu nitrile, mōhiti tiaki, kopare/manawa mēnā e tika ana, me te hauhautanga pai mō te mahi.
Ngā Hipanga hei Hanga Kirihou Resin Epoxy
1) Whakatauhia te whāinga me te whiriwhiri i te momo epoxy
Ko te taahiraa tuatahi ko te whakatau i te hua whakamutunga:
– Kei te hiahia koe ki te waihanga i tētahi mea totoka/maka (hei tauira, he tauira, he panera, he wāhanga rānei)?
– Kei te hiahia koe ki te hanga paninga mō ngā papa, mō ngā mata raima rānei?
– Kei te hiahia koe ki te hanga i tētahi piripiri/whakakī pakaru?
Ko te whakamahinga o te hua e whakatau ana i te momo epoxy (te matotoru, te roa o te mahi/te roa o te ipu, te ātete ki te UV, te ātete ki ngā matū). Mō ngā wāhi e kitea ana e te rā, me pania te epoxy ki te paninga o runga (hei tauira, te polyurethane) nā te mea he maha ngā epoxy ka kōwhai haere nā te pānga ki te UV.
2) Te whakarite i te wāhi mahi me te pokepokea ai
Kia tino mōhio kei te wāhi mahi:
– Maroke, ma, ā, kia pai te hauhautanga.
– Te pāmahana pumau (ko te 20–30°C te mea pai rawa atu, i runga i ngā whakaritenga o te hua).
– Kore puehu mō te āhua maeneene o te mata.
Ki te whakamahi koe i te pokepoke, kia tino mohio koe:
– Horoia, kia ōrite hoki te tānga.
– Whakamahia he matū tuku mēnā e tika ana hei ārai i te piri pūmau o te epoxy.
3) Inehia kia tika te ōwehenga o te kapia me te whakapakeke.
Ko te hapa nui rawa atu a te hunga tīmata ko te whakamahi i te ōwehenga whakaranu hē. Whāia ngā tohutohu a te kaihanga—tērā pea ka whakawhirinaki ki te taumaha, ki te rōrahi rānei. Ko te whakamahi i te tauine matihiko te mea tika ake.
Ka taea e te ōwehenga hē te hua:
– Kāore te epoxy e whakapakeke rawa (piripiri).
– He iti te kaha, ā, he ngāwari ki te pakaru.
– He mata hinuhinu, he mata pakarukaru rānei.
4) Whakaranua kia tika te kapia me te whakapakeke.
Ringihia te kapia me te whakapakeke ki roto i te ipu, kātahi ka whakaoho mārire engari kia tino pai mō te 2–5 meneti (i runga i te nui). He tikanga pai:
– Whakaohokia kia porowhita, kātahi ka "waru" i ngā pakitara me te raro o te ipu i ētahi wā.
– Kaua e whakaoho kaha rawa, kei puta ai he maha o ngā mirumiru hau.
Mō ngā mahi nui, whakamahia te tikanga whakaranu takirua: kia oti te whakaranu, whakawhitihia te ranunga ki tētahi ipu hou, ka whakaohokia anō mō te wā poto. Mā tēnei ka whakaitihia te tūponotanga o ngā kai kāore i whakaranua kia tau ki ngā kokonga o te ipu.
5) Tāpirihia he tae, he whakakī rānei (whiringa)
Ki te hiahia koe ki te tae, tāpirihia he tae e tika ana. Mō te whakakī hanga:
– Tāpirihia mārire, mārire hoki, me te whakaoho tonu.
– Kia tino mohio kei pupū.
– Whakarerekētia te matotoru kia rite ki te whakamahinga (hei tauira, mō te whakapiri i ngā kapiti, ka taea te hanga i te ranunga kia rite ki te whakapiri; mō te whakakī ka taea te hanga kia wai ake).
Kia mahara: ki te nui rawa te tāpiri o te whakakī ka pā ki te kaha whakamutunga, ki te wā rānei e whakapūmau ana, nō reira me whakamātau noa i te tuatahi.
6) Te ringihanga, te paninga rānei ki te mata
Hei hanga i te kirihou epoxy hei mea totoka:
– Ringihia mārire te ranunga ki roto i te pokepoke.
– Ki te nui te rōrahi, ringihia kia maha ngā wāhanga hei whakaiti i te wera o te tauhohenga (he exothermic te epoxy).
Mō te paninga hangahanga:
– Kia tino rite te mata o te raima (te āhua o te mata, kāore he puehu, kāore he hinu).
– Whakatakotoria ki te roera/whakaōrite kia rite ki te matotoru e hiahiatia ana.
7) Tangohia ngā mirumiru hau (mēnā e tika ana)
Ka puta ake ngā mirumiru i te whakaohooho, i ngā pūwero rānei o te mata. Me pēhea te whakaiti i ēnei:
– Whakamahia he pū wera/rama mārama i te tawhiti haumaru, me te neke tere i runga i te mata.
– Mahihia i te pāmahana e tika ana; ki te iti rawa te pāmahana ka nui ake te matotoru, ā, ka mau te hau.
8) Te tukanga whakamaroke (whakapakari)
Kia oti te paninga, waiho kia maroke te epoxy mō te wā kua tohua. Ngā mahi whānui:
– Te wā paninga: ka tīmata te matotoru.
– Kore-piri: mata kore-piri.
– Te ora katoa: ka tutuki te kaha mōrahi (tērā pea ka 3–7 ngā rā, kei te hua te āhua).
I te wā e whakamaroke ana:
– Āraia te puehu me te wai.
– Āraia ngā kawenga miihini wawe.
Ngā Whakamahinga o te Resin Epoxy i roto i te Ahumahi Hanga
1) Papa epoxy
Ko ngā papa epoxy e whakamahia whānuitia ana mō ngā wheketere, ngā whare putunga, ngā hōhipera, me ngā papa waka. Ngā Painga:
– Ātete ki te pakū, ā, he ngāwari ki te horoi.
– Ātete ki ētahi turuturu hinu/matū.
– Ka taea te hanga i te mata kia kore e paheke ki te kirikiri.
2) Ngā piripiri hanganga me te hononga raima
Ka whakamahia te epoxy hei hono i te raima tawhito ki te raima hou, hei hono rānei i ngā pereti maitai ki te raima. I roto i ngā whakahoutanga hanganga, he mea nui te epoxy ki te whakapakari i ngā hononga me te whakapai ake i te hanganga.
3) Werohanga pakaru
Mō ngā pakaru raima hanganga, ka taea e te epoxy werohanga te whakakī i te āputa me te "hiri" i te pakaru. Nā te iti o te matotoru, ka taea e te epoxy te uru ki roto i ngā pakaru angiangi, te whakapakeke, me te whakahoki mai i te kaha o te huānga.
4) Te whakapūmau me te taunga
Ka whakamahia te grout epoxy mō:
– Kia pumau te turanga mīhini, kia ātete hoki ki te wiri.
– Ngā pūtu punga (ngā punga matū) i roto i te raima/kōhatu.
He pai te piri o te epoxy, ā, he pai hoki te ātete ki ngā kawenga kume/kutikuti.
5) Paninga ārai-waikura mō te maitai me te raima
I roto i ngā taiao kaha pērā i ngā whare matū, i ngā takutai moana rānei, ka tiakina e ngā paninga epoxy ngā mata mai i te waikura me te pirau. Mō te raima, ka āwhina te epoxy ki te whakaiti i te urunga o te wai me ngā katote pūhaumāota, ka taea ai te whakatere i te waikura whakakaha.
6) Te whakatikatika me te whakapiri i te mata
Ka taea te whakamahi i te ranunga o te epoxy me te onepū/whakakī quartz hei whakatika i ngā mata pakaru, pakaru, kua tawhito rānei. He pakari te hua, he tere te hoki ki te mahi, ā, he pai te piri ki te papa.
Ngā Tohutohu Haumaru me te Kounga
– Whakamahia ngā taputapu tiaki whaiaro (PPE): ngā karapu nitrile me te hauhautanga e tika ana.
– Kaua e "whakapae" i te ōwehenga, engari me ine tonu.
– Ngā whakamātautau iti i mua i ngā kaupapa nunui, inā koa mēnā ka tāpirihia he whakakī/ngā tae.
– Kia aro ki te hototahitanga ki te taiao (UV, pāmahana, matū).
– Whāia te pepa raraunga hangarau (TDS) me te pepa haumaru (SDS) o te hua.
Te Katinga
Ko te hanga kirihou kapia epoxy he tukanga whakakotahi i te kapia me te whakapakeke i te ōwehenga tika, ka whakaranu pai, kātahi ka tukua kia whakamaroke hei totoka kaha. Mā te tikanga tika, ka taea e te epoxy te whakaputa i tētahi rauemi "kirihou" tino pono mō ngā mahi hanga - mai i ngā paninga papa me ngā werohanga kapiti ki ngā piripiri hanganga me te whakakī ki te tiaki ārai-waikura. Ko ngā kī ki te angitu kei roto i te whakarite mata, ngā ōwehenga whakaranu tika, te whakahaere mirumiru, me te piri ki ngā wā whakamaroke.
Ki te hiahia koe, ka taea e au te whakarerekē i tēnei tuhinga hei putanga hangarau ake (e whakarārangi ana i ngā tawhā pēnei i te roa o te wā e whakamahia ana te kohua, te matotoru o te paninga, ngā paerewa whakarite mata raima) me tētahi putanga rongonui ake rānei mō te kaipānui whānui.
