He maha ngā wā ka pātai mai ngā kaihoko ki a mātou mēnā ka roa te wā e whakanohoia ana ngā wira polyurethane, ka puta te koroheketanga, te ngāwari ki te pakaru me ētahi atu āhuatanga, ehara tēnei i te raruraru wira, he āhuatanga noa.
Tuatahi, ngā take tawhito o te caster polyurethane
He maha ngā take o te koroheketanga o ngā whakarewa polyurethane. I te nuinga o te wā, ko ngā tino take o te koroheketanga o ngā whakarewa polyurethane ko te waikura, te hihi ultraviolet, te haumākū, te pāmahana teitei, te pāmahana iti, ngā whakarewa matū me ētahi atu āhuatanga taiao, tae atu ki te mekameka ngota polymer o tōna ake hanganga me te pumau matū me ētahi atu āhuatanga.
Tuarua, te pānga koroheketanga o te caster polyurethane
Ka rerekē ngā āhuatanga ā-tinana me ā-matū o ngā rewa polyurethane, ka kitea he tae pōuri ake, he pakaru te mata, he heke te pakeke, he iti te ngāwari. I te kaha haere o te pakeketanga, ka ngaro haere te mahi a ngā rewa polyurethane, ā, ka mutu, ka kore e ranea ngā rauemi. I roto i ngā mahi whaihua, pērā i ngā rauemi hiri hanga, ngā hua hiako horihori, ngā nohoanga motuka me ētahi atu mara, ka raru pea ngā rewa polyurethane kua tawhito.
Tuatoru, mēnā ka ārahi te koroheketanga o te polyurethane ki te whakangawari i ngā rauemi
I muri i te koroheketanga o te mīhini whakarewa polyurethane, ka heke te pakeke me te ngāwari o te rauemi, ka arahi pea tēnei ki te whakangawari o te rauemi, engari ehara i te mea koinei anake te huarahi e kitea ai te koroheketanga. Hei tauira, ko te hekenga o ngā āhuatanga pēhi o ngā mīhini whakarewa polyurethane ka arahi pea ki te whakarerekētanga o te rauemi i raro i te kaha. Ko te tikanga, ka rerekē ngā tohu mahi ā-tinana pēnei i te pakeke me te ngāwari o ngā mīhini whakarewa polyurethane i mua me muri i te koroheketanga, koinei tētahi o ngā tohu tino nui o te nui o te koroheketanga o te rauemi.
Wā tuku: Mei-28-2024