Pehea ʻoe e ʻike ai i ka helu ahi o ka lole pale ahi?

Oxygen index detection method: ke ahi lole, pono e hoopau i ka nui o ka oxygen, aole like ka puhi, aole like ka nui o ka oxygen e pono ai e puhi, e like me ka hooholo ana o ka hoohana ana i ka oxygen haahaa i ke kaʻina o ka puhi mea, helu i ka ka waiwai index oxygen o ka mea, hiki ke hoʻoholo i ka hana hoʻopau ʻana o ka mea.

 

ʻO ke ʻano horizontal a me ke ala kūpaʻa nā ala maʻamau o ke ana ʻana i nā mea ahi. ʻO kāna kumu kumu: e hoʻopaʻa i ka ʻaoʻao o ka specimen, e hoʻohui i kahi lapalapa i makemake ʻia i ka hopena manuahi o ka specimen, e like me ke ana ʻana o ka laina hoʻoheheʻe laina (horizontal method) a me ke ahi a me ka lapalapa ahi manawa (vertical method) e hoʻopuka i ka hana hoʻopau lole pale ahi o ka specimen. ʻOi aku ka ikaika o ka hoʻāʻo kūpaʻa ma mua o ka ʻaoʻao 45° a me ka ʻaoʻao ākea.Mea hana lole pale ahi

 

Hoʻokaʻawale ʻia ke ʻano kuʻuna i ke ʻano o ka lōʻihi o ka pōʻino, ke ʻano ana o ka hana hoʻolaha ʻana o ka lapalapa ahi, ke ʻano hoʻāʻo ʻana o ka flammability vertical a me ke ʻano ana o ka hana ʻana o ka ʻili. Hiki ke hoʻohana ʻia ke ala kū pololei e hoʻāʻo ai i nā waiwai pale ahi o nā lole lole, nā lole kāhiko, nā hale lole, etc.Mea hana lole pale ahiHoʻohana nui ʻia ke ʻano tilt no ka lole hoʻonaninani o loko; Hoʻohana nui ʻia ke ʻano ākea no nā lole moena e like me ke kāpeti.Mea hana lole pale ahi

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Hoʻohana nui ʻia ke ʻano hoʻāʻo lole pale ahi no ka ʻike ʻana i ka lōʻihi o ka pōʻino, ka manawa hoʻomau mau a me ka manawa soldering o ka specimen. Ua hoʻomālamalama ʻia nā hiʻohiʻona o kahi nui i loko o ke keʻena hoʻopau i makemake ʻia me ke kumu hoʻāla i makemake ʻia no 12s. Ma hope o ka wehe ʻana i ke kumu hoʻāla, ʻike ʻia ka manawa hoʻopau mau a me ka manawa ʻā o nā mea hoʻohālike. Ma hope o ka pau ʻana o ka puhi ʻana, e ana ʻia ka lōʻihi o ka pōʻino e like me ke ʻano i kuhikuhi ʻia. E like me ka United States ASTMF1358-1995 "textile flame retardant performance standard ana ana - vertical method" a me Kina GB/T5456-2009 "Textile combustion performance vertical direction test specimen flame spread performance" a me GB5455-1997 "Textile combustion performance test vertically. ala" a me nā kūlana ʻē aʻe. Pono nā kūlana aupuni Kina e hoʻomau i ka manawa kuni ≤5s, manawa ʻāhu ≤5s, lōʻihi pōʻino ≤150mm. E like me ke kūlana pili o ka specimen a me ka lapalapa, hiki ke hoʻokaʻawale ʻia i ke ʻano kuʻekuʻe, ke ʻano inclined a me ke ʻano ākea.

 

ʻO ka helu o ka oxygen e pili ana i ka neʻe ʻana o ka oxygen i loko o ka lole pale ahi a hiki i kahi o ka ʻā. ʻO ka mea maʻamau, ʻoi aku ka kiʻekiʻe o ka oxygen index o ka lole, ʻoi aku ka kiʻekiʻe o ka oxygen e pono ai e puhi, a ʻoi aku ka liʻiliʻi o ke ahi; ʻO ka mea ʻē aʻe, ʻoi aku ka haʻahaʻa o ka index oxygen fabric, ma ka haʻahaʻa haʻahaʻa haʻahaʻa oxygen maʻalahi e hiki i ka ignition point. ʻO ka papa kuhikuhi oxygen ma lalo o 21 he mau lole hiki ke ahi, a ʻo ka helu oxygen ma luna o 28 he mau lole pale ahi.


Ka manawa hoʻouna: Oct-11-2022