ʻO ke kaʻina hana hoʻoheheʻe o ka mea PVC

ʻAʻole kūʻai ʻia nā mea PVC, he anti-inflammatory, paʻakikī a ikaika, kūpaʻa kemika maikaʻi, shrinkage rate o 0.2-0.6%, hoʻohana nui ʻia nā huahana i nā mea uila, nā mīkini, ke kūkulu ʻana, nā mea e pono ai i kēlā me kēia lā, nā mea pāʻani, nā ʻāpana, no nā ʻano o ʻO nā mea PVC, ka nānā ʻana o ke kaʻina hana hoʻoheheʻe huahana penei:

一、Nā waiwai o nā mea PVC

ʻAʻole maikaʻi ke kūpaʻa wela o PVC, kokoke i ka mahana wela a me ka decomposition wela, ʻino ka neʻe ʻana, ke ʻano o ka maʻalahi o ka hana ʻana i nā hemahema maikaʻi ʻole, ʻaʻole maikaʻi ke kūpaʻa wela o ka PVC, ʻoi aku ka maʻalahi o ka puhi ʻana, ke kinoea waikawa a me ka corrosion o ka mold, ka hana ʻana. hiki ke hoʻohui i ka plasticizer e hoʻonui i kona wai, - pono e hoʻohui i nā mea hoʻohui e hoʻohana ai, kona ikaika, insulation uila, kūpaʻa kemika maikaʻi.

二、 Mold a me ka hoʻolālā puka

I mea e hoʻopōkole ai i ka pōʻaiapili injection, ʻoi aku ka maikaʻi o ka pōkole o ke awa injection, ʻo ke ʻano o ke keʻa e like me ke ʻano o ka māla, ʻo ke anawaena haʻahaʻa o ke awa injection he 6 mm, i loko o ka cone māla, ka kihi o loko o 5 degere, ʻoi aku ka maikaʻi. me nā pūnāwai anu, hiki i nā pūnāwai anu ke pale i ka hoʻoheheʻe maikaʻi ʻana i nā mea semi-solid i loko o ka lua, a e hoʻopilikia kēia mau mea i ka hoʻopau ʻana i ka ʻili a me ka ikaika o ka huahana.

Pono ka pali ma waena o 0.50 a me 10 e hōʻoia i ka loaʻa ʻana o nā lako hoʻokuʻu i ka lua.He 0.03-0.05mm ka hohonu ka nui o ka puka makani a 6mm ka laula, a i ʻole 0.03-0.05mm ka wehe ʻana a puni kēlā me kēia pine ejector.Pono e hana ʻia ka make me ke kila kila a i ʻole ka chrome paʻakikī.

三, kaʻina hana hoʻoheheʻe PVC

ʻO ka PVC he mea paʻa wela.ʻO ka hoʻohaʻahaʻa ʻana a i ʻole ka ʻohi nui ʻana e hoʻoheheʻe ʻia a hoʻolaha wikiwiki ʻia, no ka mea, ʻo kekahi o nā huahana decomposition (e like me ka waikawa a i ʻole HCI) e loaʻa i ka hopena catalytic, e hopena i ka decomposition hou o ke kaʻina hana, a e hoʻopau ka waikawa i ka metala a hoʻololi.Inā ʻeha ia, e ʻili ka pale pale o ka metala, e hoʻoheheʻe ʻia, ʻoi aku ka pōʻino i ke kino o ke kanaka.ʻO ka lākiō maʻamau ka lōʻihi-anawaena he 18 ~ 24: 1, ʻo ka lākiō ʻekolu-pae ʻo 3: 5: 2, a ʻo ka lākiō hoʻopiʻi ʻo 1.8 ~ 2.Hoʻomaopopo ʻia ka hohonu o ka ʻaʻa screw ma ka ʻāpana hānai e like me kēia:

Pono e lohi ka wikiwiki o ka injection, inā ʻaʻole e hoʻohaʻahaʻa ka ʻako nui i ka mea.I ka hoʻohana ʻana i ka UPVC no ka hana ʻana i nā huahana paheʻe mānoanoa loa, pono e hoʻohana ʻia nā wikiwiki injection multi-level.Inā ʻōlinolino nā ʻōniʻoniʻo ʻulaʻula mai ka ʻīpuka, ʻo ia ke kiʻekiʻe o ka wikiwiki o ka injection.wikiwiki.

Pono ka piko o ka wili e loaʻa i kahi kihi kūloko o 25-30 degere.Ke kau ʻia ka wili, ʻo ka mamao ma waena o ka piko a me ka nozzle he 0.7 ~ 1.8mm.Pono e hana ʻia ka wili me ke kila kila a i ʻole chrome-plated.

1)Screw gasket: Aia ka screw gasket ma waena o 2 ~ 3mm, a ʻoi aku ka nui o ka manawa nui

2)Injection Volume: ʻAʻole pono ka manawa noho maoli ma mua o 3 mau minuke.

3) Hoʻonohonoho wela o ka pahu:

ʻO nā mahana i hāʻawi ʻia no ka ʻike wale nō, a ua hana ʻia nā hoʻoponopono kūpono e like me nā kūlana maoli o ka mīkini a me nā mea maka, ʻoi aku paha ma mua o ka pae i ʻōlelo ʻia.

ʻO ka mahana o ka ʻāpana hānai waena ma ka ʻāpana mua o ka nozzle mold (0C) 30-60 170-190 160-180 150-170

ʻO ka nui o ka injection i hoʻohana ʻia no 140-160 he 20 ~ 85% o ka nui o ka injection theoretical o ka mīkini.ʻO ka liʻiliʻi o ka nui o ka injection i hoʻohana maoli ʻia, ʻoi aku ka lōʻihi o ka manawa paʻa o ka mea a ʻoi aku ka nui o ka pōʻino ma hope o ka wela.cin.com

4) Barrel noho manawa:

Ma lalo o ke kaohi o ka mahana o 2000C (mea hao), hiki ke kiʻekiʻe ka manawa noho o ka barela ma mua o 5 mau minuke, ke 2100C ka mahana.

5) ʻO ka wikiwiki o ka injection:

Pono e lohi ka wikiwiki o ka injection, inā ʻaʻole, e hoʻohaʻahaʻa ka mea ma muli o ka ʻohi nui ʻana.Pono e hoʻohana ʻia ka wikiwiki o ka injection i ka wā e hoʻohana ai i ka UPVC e hana i nā huahana pā mānoanoa loa.Inā loaʻa nā ʻōniʻoniʻoni ʻulaʻula mai ka puka mai, ʻo ia ke kiʻekiʻe o ka wikiwiki o ka injection.wikiwiki.