Ko te mīhini whakarewa polyurethane matua rino he momo mīhini whakarewa he rauemi polyurethane, e herea ana ki te matua rino maka, te matua maitai, te matua pereti maitai rānei, he marino, he puhoi te taumaha, he ohanga hoki, ā, he pai mō te nuinga o ngā taiao mahi.
Ko te rahi o ngā wira ahumahi i te nuinga o te wā kei waenga i te 4~8 inihi (100-200mm), ko ngā wira polyurethane te mea pai rawa atu. He pai ake te ātete o ngā wira polyurethane ki te pakū, he whānui te mahi whakarerekētanga, he rerekē ngā tikanga tukatuka, he whānui te whakamahinga, he pai te ātete ki te hinu, te ozone, te koroheketanga, te irahiko, te pāmahana iti, me ētahi atu, he pai te uruhanga oro, he kaha te kaha piri, he pai te hototahi ki te koiora me te hototahi ki te toto.
Ko ngā āhuatanga matua o ngā pereki polyurethane ko ngā mea e whai ake nei:
1. He whānuitanga mahi ka taea te whakarerekē. Mā te whiriwhiri i ngā rauemi mata me te whakarerekē i te tātai, ka taea te whakarerekē i roto i tētahi whānuitanga o ngā huringa i roto i te maha o ngā tohu mahi ā-tinana me ā-mīhini, kia tutuki ai ngā whakaritenga ahurei a te kaiwhakamahi mō te mahi o ngā hua. Hei tauira, ka taea te hanga i ngā elastomer polyurethane hei roera rapa tā ngohengohe me ngā roera maitai mārō hei whakatutuki i ngā hiahia o ngā kaiwhakamahi rerekē.
2. He ātete pai ki te pakū. I te aroaro o te wai, te hinu me ētahi atu āhuatanga mahi mākū, he maha ki te tekau ngā wā ka nui ake te ātete o ngā wira polyurethane ki te kakahu i ngā rauemi rapa noa.
3. Ngā momo tikanga tukatuka me te whānui o te whakamahinga. Ka taea te hanga i te elastomer polyurethane mā te tukanga whakakirihou, whakaranu me te whakamomona (e pā ana ki te MPU); ka taea hoki te hanga hei rapa wai, te hanga whakarewa, te rehu rānei, te hanga kohua me te hanga porowhita (e pā ana ki te CPU); ka taea hoki te hanga hei rauemi kirikiri me te hanga mā te werohanga, te whakaputa, te whakatārewatanga, te hanga pupuhi me ētahi atu tukanga (e pā ana ki te CPU).
4. Ātete ki te hinu, te ozone, te koroheketanga, te irahiko, te pāmahana iti, te tuku oro pai, te kaha piri kaha, te hototahitanga koiora pai rawa atu me te hototahi toto.
Heoi, he ngoikoretanga anō hoki ō ngā elastomers polyurethane, pērā i te wera nui o roto, te ātete ki te pāmahana teitei i te nuinga o te wā, inā koa te ātete kino ki te makuku me te wera, kāore e ātete ki ngā whakarewa porowhita kaha me ngā waikawa kaha me ngā kawakore.
Wā tuku: 12 o Ākuhata 2024