Aratau hononga o te paipa ahi: miro, awaawa, flange, me ētahi atu. Ko te paipa maitai epoxy ā-roto, ā-waho hoki mō te tiaki ahi he paura kapia epoxy ārai-waikura taumaha kua whakarerekētia, he ātete pai ki te waikura matū. He tino whakaoti rapanga pērā i te waikura waikura mata me te tauine pakitara o roto o ngā hua rite i muri i te whakamahinga roa, kia kore ai e aukati i roto e pā ki te whakamahinga, kia pai ake ai te roa o te ora ratonga o ngā paipa tinei ahi motuhake. Nā te tāpiri o ngā rauemi ārai mura ki ngā rauemi paninga, ka pai ake te ātete pāmahana o te hua ki te whakataurite ki ētahi atu hua rite. Nō reira, kāore e pā ki te whakamahinga ina piki tere te pāmahana taiao. He pai ake te roa ratonga me te mahi o ngā paipa ahi paninga ā-roto, ā-waho hoki i ērā o ngā paipa piauau. He whero te tae.

He tohunga tā mātou wheketere ki te whakaputa i ngā paipa ahi, ngā paipa rino piauau, ngā paipa paninga paura, ngā paipa paninga paura me ngā paipa rino 6-inihi. Whakamahinga: te tuku wai ahi, te tuku hau me te pūnaha paipa kawe reo pahuka. Ka paahitia te kounga o te hua e ngā tikanga tuku iho, ā, ka paahitia hoki ngā whakamātautau maha i mua i te wehenga atu i te wheketere. Ka tutuki i ngā paerewa kounga ā-motu me te ao.

(1) Ngā āhuatanga hangarau teitei. He kaha te piripono o te kapia epoxy me te hanganga ngota ngota kiato, nō reira he teitei ake ōna āhuatanga hangarau i ngā kapia thermosetting whānui pērā i te kapia phenolic me te polyester kāore i te mākū.

(2) Ko te paninga o ngā paipa ahi kua pania ki te kirihou he kapia epoxy, he kaha te piri. Kei roto i te pūnaha whakamaroke kapia epoxy he rōpū epoxy, he rōpū hydroxyl, he here ether, he here amine, he here ester me ētahi atu rōpū polar me te kaha nui, e hoatu ana ki ngā hua whakamaroke epoxy he piri pai ki te konganuku, ki te uku, ki te karāhe, ki te raima, ki te rakau me ētahi atu papa polar.

(3) He iti te whakahekenga o te whakamaroke. Ko te tikanga 1% ~ 2%. Ko tētahi o ngā momo he iti rawa te whakahekenga o te whakamaroke i roto i ngā kapia whakamahana (ko te kapia phenolic he 8% ~ 10%; ko te kapia polyester kore mākū he 4% ~ 6%; ko te kapia silicone he 4% ~ 8%). He tino iti hoki te tauwehenga whānui raina, ko te tikanga 6 × 10-5/℃. Nō reira, he iti noa te rerekētanga o te rōrahi i muri i te whakamaroke.

(4) He mahi toi pai. Kāore te kapia epoxy e whakaputa i ngā matū iti i te wā e whakamaroke ana, nō reira ka taea te hanga i raro i te pēhanga iti, i te pēhanga pā rānei. Ka taea te mahi tahi me ngā momo matū hei whakaputa i ngā paninga e pai ana ki te taiao pērā i te paninga kore-whakarewa, te paninga totoka teitei, te paninga paura me te paninga wai-tūturu.

(5) He pai te ārai hiko. He kapia epoxy he kapia whakamahana me ngā āhuatanga ārai-pūmau pai.

(6) He pai te pumau me te ātete matū tino pai. Kāore e ngāwari te pirau o te kapia epoxy, kāore he kawakawa, he tote me ētahi atu poke. Mena ka rongoatia tika (hiritia, kia kore e makuku, kia kore hoki e werawera), ko te wā rokiroki he 1 tau. I muri i te rā paunga, ki te tika te tirotiro, ka taea tonu te whakamahi. He tino pumau te matū o te matū whakaora epoxy. He pai ake tōna ātete ki te waikura ki te kawakawa, te waikawa, te tote me ētahi atu mea i te kapia polyester kore-mākū, te kapia phenolic me ētahi atu kapia thermosetting. Nō reira, he whānui te whakamahinga o te kapia epoxy hei paninga ārai-waikura. Nā te mea he hanganga whatunga toru-ahu te kapia epoxy kua rongoatia, ā, ka taea te ātete ki te whakakī o te hinu, he whānui te whakamahinga i roto i te pakitara o roto o ngā tāke hinu, ngā waka hinu me ngā waka rererangi.

Pikitia 1 paipa ahi

Pikitia 1 paipa ahi (5 ngā wahi)

(7) Ko te ātete wera o te matū whakaora epoxy he 80 ~ 100 ℃ te tikanga. Ko ngā momo kapia epoxy ātete wera ka eke ki te 200 ℃, neke atu rānei.