I. Nā pilikia o ka ʻili
1. ʻO ka ʻili ʻōpala, ʻaʻole maʻemaʻe, a ʻaʻole hoʻi i ʻōlinolino: Nalo ka ʻili o ka paipu i ka luster e pono ai ke silicone, a ʻike ʻia ka ʻili a i ʻole ka ʻili ʻalani -e like me ke kino ke hoʻopā ʻia.
Ke kumu:
Pilikia hui pū ʻia: ʻAʻole hui like ʻia ka hui ʻana o ka lāʻau, me nā ʻāpana ʻōpala a i ʻole nā puʻupuʻu. ʻAʻole maikaʻi ka hoʻopuehu ʻana o ka hui ʻōpala.
Pilikia waiwai: Ua hoʻohana ʻia nā mea hana hou ʻia mai ka mīkini a i ʻole ka hui ʻana o nā pūʻulu lāʻau like ʻole, i hopena i ka hoʻohālikelike ʻana.
Nā ʻāpana kaʻina hana kūpono ʻole:
1) haʻahaʻa haʻahaʻa haʻahaʻa: ʻO ka plasticization maikaʻi ʻole o ka hui lāʻau, ka wai maikaʻi ʻole, a me ka hiki ʻole ke hoʻokuʻu mālie i ka make. He haʻahaʻa loa ka mahana o ke poʻo make a make paha: E maʻalili koke ka ʻili o ka hui lāʻau i ka wā e puka ai i waho o ka make, a lilo ia i ʻili ʻala.
2) ʻOi aku ka wikiwiki o ka wiliwili: Noho ka hui ʻana i loko o ka pahu no ka manawa pōkole, e hopena i ka lawa ʻole o ka plasticization. I ka manawa like, hiki i ka wela nui i hana ʻia e ka ʻako ʻako ʻia ke kumu e hoʻoheheʻe mua ʻia ai kekahi o ka hui lāʻau lapaʻau (scorch).
3) Nā pilikia mold: E ʻike pololei ʻia nā haumia, ka lepo a i ʻole ka pōʻino i loko o ka make ma ka ʻili o ka paipu.
2. ʻO nā pōpō a me nā pinhole
1. ʻIke ʻia nā ʻōhū liʻiliʻi a i ʻole nā puka i loko a i ʻole ma ka ʻili o ka pā paipu.
Ke kumu:
ʻO ka wai i loko o nā mea maka: Ua mālama pono ʻole ʻia nā mea maka a me nā mea hoʻohui (e like me ka masterbatches kala) a hoʻopaʻa ʻia i ka makū mai ka lewa. I ka wā ki'eki'e-e ho'oku'u 'ia ana ka wela, ua mahu ka wai, a lilo i mau 'ōhū. Hoʻokomo ʻia ka ea i ka wā o ka hui ʻana: I ka hui ʻana i loko o ka wili ākea a i ʻole ka hui ʻana i loko, ʻaʻole hiki ke hoʻokuʻu ʻia ka ea i huki ʻia i loko.
Hoʻopuka kaʻina hana: Extruder vacuum hāʻule: Ua lako pono nā extruders o kēia manawa me nā mea hoʻoheheʻe e hoʻoneʻe i ka ea a me nā mea hoʻoheheʻe mai ka hui lāʻau ma mua o ka extrusion. Inā ʻaʻole lawa ka degere a i ʻole paʻa ka sila, ʻaʻole hiki ke kipaku ʻia nā ʻōhū.
ʻOi aku ka wikiwiki o ka vulcanization: I ka wā o ka vulcanization, ʻaʻole hiki ke pakele ka ʻili i nā loulou a paʻa, a ʻo ke koena o ka ea a i ʻole ka haʻahaʻa -molecular{2}}mea hiki ʻole ke pakele i loko, e hana ʻia nā ʻōhū.
2, Nā pilikia e pili ana i ka nui a me ke ʻano
1. Unstable ana (fluctuations ma waho anawaena / loko anawaena / paia mānoanoa)
Phenomenon: Ma ka pūʻulu like a i ʻole ka paipu like, ʻoi aku ka nui o nā ana i ka pae hoʻomanawanui.
Ke kumu:
1) ʻAʻole kūlike ka wikiwiki extrusion i ka wikiwiki traction: ʻO kēia ke kumu nui. Inā ʻoi aku ka wikiwiki o ka traction ma mua o ka extrusion speed, e emi ana ke anawaena paipu a ʻoi aku ka lahilahi o ka pā. ʻO ka mea ʻē aʻe, e mānoanoa a mānoanoa. Lapa paʻa ʻole ka hāʻawi ʻana: ʻO ka hānai pono ʻole ke alakaʻi i nā loli i ke kaomi extrusion.
2) Ka hoʻololi ʻana o ka mahana: ʻO nā wela paʻa ʻole i ka barela a me ke poʻo make e hoʻopili i ka viscosity a me ka wai o ka hui ʻana, e alakaʻi ana i nā loli i ka nui o ka puka.
3) Ka emi ʻana o ka vulcanization like ʻole: Hiki i ka fluctuation o ke kumu hoʻohui huila a me nā kūlana vulcanization paʻa ʻole (ka wela, ka manawa) hiki ke alakaʻi i nā helu hōʻemi like ʻole ma hope o ka vulcanization, a laila pili i ka nui hope.
4) ʻO ka hoʻolālā ʻana a i ʻole ka hana ʻana i nā pilikia pololei: ʻAʻole ʻae ʻia ma waena o ke kumu o ka mold ponoʻī a me ka make.
2. Poor poepoe (elliptical, curved)
Phenomenon: ʻAʻole poepoe ka ʻāpana -kea o ka paipu, a i ʻole, ua ʻāwili ka paipu holoʻokoʻa.
Ke kumu:
1) ʻAʻole concentric ka make a me ka make kumu: ʻO kēia ke kumu pololei o ka ellipticity a me ka eccentricity.
2) ʻAʻole kūpono ke kaomi extrusion o ka hui kīpē: ʻO ka hoʻolālā ʻana o ke kahawai kahe o loko o ke poʻo make ʻaʻole kūpono, e hopena i ka paʻi like ʻole o ka hui lāʻau e kahe ana i nā wahi like ʻole.
3) ʻAʻohe ʻoluʻolu: Ma mua o ke komo ʻana i ka pahu vulcanizing, inā e hoʻokau ʻia ka paipu i ka ikaika kūloko ma ke kāʻei conveyor a i ʻole he ʻokoʻa ʻokoʻa ka wela o ka wai kūloko i loko o ka pahu wai hoʻoluʻu, e hoʻopiʻi a deform ka paipu.
4) ʻO ka haʻalulu nui i ka wā o ka wili ʻana: ʻO ka huki nui ʻana i ka wā o ka wili ʻana e palahalaha i ka paipu ʻaʻole i maʻalili a hoʻonohonoho.
3, Nā Pono Kino a me nā pilikia o loko
1.Low waimaka ikaika a maʻalahi e haki
Phenomenon: Hiki i nā paipu ke nahā a nahā paha i ka wā e hoʻāʻo ʻia ai ke kulou a me ka tensile.
Ke kumu:
1) ʻAʻole lawa ka vulcanization: ʻAʻole kiʻekiʻe ka mahana o ka vulcanization a i ʻole ka manawa pōkole, e hopena i ka lawa ʻole o ka crosslinking density a me nā kaulahao molekala i hana ʻole i kahi ʻano pūnaewele paʻa.
2) He haʻahaʻa loa ka paona molekala o ka pāpaʻi maka, ʻaʻole lawa ka nui o nā mea hoʻoikaika ikaika (e like me ka silica) a ʻaʻole like ka hoʻopuehu ʻana.
3) Hoʻohui nui: Hiki i nā manawa hui lōʻihi ke kumu i ka haki ʻana o ke kaulahao molekala a hōʻemi i ka ikaika.
4) Hoʻohaumia: Hoʻohui ʻia nā mea haumia ʻē aʻe a i ʻole nā ʻaila ʻaila i loko o ka pūhui ʻōpala, e hana ana i nā wahi koʻikoʻi.
2.Large paʻakikī deviation
Phenomenon: ʻAʻole kūlike ka paʻakikī o ka huahana i hoʻolālā ʻia, a i ʻole ka paʻakikī o ka pūʻulu like o nā huahana.
Ke kumu:
1) Ke kaupaona pololei ʻole o ke ʻano: ʻoi aku ka hewa o ke ʻano o ka vulcanizing agent a me ka reinforcing agent.
2) Hoʻohui like ʻole: alakaʻi i kahi kaulike ʻole i ka ʻāpana o nā ʻōkuhi kūloko.
3) Nā kūlana vulcanization kūpono ʻole: E hoʻonui ka vulcanization i ka paʻakikī, ʻoiai ʻaʻole lawa ka vulcanization e hopena i ka paʻakikī haʻahaʻa.
4, Nā pilikia kiko'ī ma ke kaʻina hana ʻenehana
1.Viscous a maikaʻi ʻole ka paʻi
Phenomenon: I ka paʻi ʻana i nā lepili ma nā paipu silikoni, ʻaʻole pili ka ʻīnika.
Ke kumu:
1) Ka hoʻohaumia ʻana o ka ʻili: Aia kahi mea hoʻokuʻu mold a i ʻole ka momona momona ma ka ʻili o ka paipu silicone.
2) ʻO ka ikehu haʻahaʻa haʻahaʻa: ʻO Silicone ponoʻī kahi mea me ka ikehu haʻahaʻa haʻahaʻa. Me ka ʻole o ka mālama ʻana i ka ʻili (e like me ka mālama halo, ka mālama ʻana i ka lapalapa), paʻakikī ke hoʻopaʻa ʻia me ka inika.