ʻO nā ʻāpana hoʻoheheʻe ʻana o ka pahu hau PVC i ka uea wela

ʻO ka uea hoʻomehana PVC, i kapa ʻia ʻo ka uea wela, ʻike ʻia hoʻi ʻo PVC heating wire, ka hoʻohana kūloko o ka nickel-chromium alloy, Constantan alloy, copper-nickel alloy e like me ka mea hoʻomehana hoʻomehana, ka hoʻohana ʻana o ka PVC insulation layer, mānoanoa ʻāpana kala koho. , ka palena wela o ka huahana o 105 ° C, lōʻihi 80 ° C ma lalo o ke ola lawelawe a hiki i 8-12 mau makahiki, ʻoi aku ka maikaʻi o ka tensile huahana a me ka hana kulou, hiki iā ia ke kū i ka ikaika huki o lalo o 35KG.

ʻOiai ʻo 105 ° C wale nō ke kūpaʻa mahana o ka uea hoʻomehana PVC, ke koho mau nei kekahi mau hale hana PVC uea wela no ka defrosting pahu hau. ʻO ka mea nui no ka mea he polystyrene (PS) ka mea pale PVC, hiki ke hoʻopili pololei ʻia me nā mea polystyrene (PS) me ka ʻole o ka pōʻino. Loaʻa i kēia mea ke kūpaʻa haʻahaʻa haʻahaʻa haʻahaʻa, kūpono loa i nā manawa e pono ai ke hoʻopili pololei ʻana me nā mea polystyrene, e like me kekahi mau liner friji. Eia nō naʻe, hiki i ka pale wela kiʻekiʻe o kēia mea ke hiki i 70 ° C, no laila hoʻohana wale ʻia i nā manawa haʻahaʻa haʻahaʻa. ʻAʻole ʻoi aku ma mua o 8W/m.