ʻIke kekahi e hana ana i ka hana ʻana i ka PVC he ʻōnaehana lubrication kaulike maikaʻi ka valve palekana no ka pono o ka hana ʻana a me ka maikaʻi o ka huahana. Inā ʻoe e hana ana i nā paipu hoʻokahe wai, nā ʻaoʻao puka makani uPVC a i ʻole nā ​​​​​​hui uwea mana, ʻo ke ʻano lubrication kūpono e pili pololei i ka wikiwiki o ka laina, ka hoʻopau ʻana o ka ʻili a me ke kūlike o ka batch.

Akā, ke kū mai nei kahi nīnau: me ka nui o nā koho lubricant i loaʻa, no ke aha he mea hoʻohui nui ka calcium stearate i nā ʻano PVC? He aha ka mea e hoʻokaʻawale ai iā ia mai nā mea hoʻohui maʻamau ʻē aʻe e like me ka stearic acid a me ka PE wax?

Ma ʻō aku o ka Lubrication: 3 mau hana koʻikoʻi o ka Calcium Stearate

He lubricant hopena pālua ka calcium stearate, i hoʻokaʻawale nui ʻia he lubricant kūloko. Akā, ʻo kona waiwai i nā ʻōnaehana PVC e pili ana i ka hana ʻana, ke kūpaʻa a me ke ʻano:

Hoʻoponopono ʻana i ka Viscosity Melt

Ma ka hōʻemi ʻana i ka friction molecular kūloko i loko o ka PVC heheʻe, hoʻomaikaʻi maikaʻi ia i ka viscosity heheʻe a hoʻomaikaʻi i ke kahe ʻana o nā mea ma o nā lako extrusion. Hoʻopau pū ia i ka wela shear nui, hoʻemi i ka degradation kūloko a me ka scorching, a mālama i ka paʻa o ke kaʻina hana.

Hoʻopau ʻakika (Co-Thermal Stabilization)

He hana koʻikoʻi kēia ʻaʻole i loaʻa i nā lubricants maʻamau. Ma ke ʻano he mea hoʻopaʻa wela kōkua, hopu ia i ka hydrogen chloride (HCl) i hoʻokuʻu ʻia i ka wā o ka hoʻohaʻahaʻa wela PVC - e pale ana i nā media acidic mai ka hōʻino ʻana i nā lako a me nā ʻōmole, ʻoiai e hoʻolohi ana i ka ʻoki ʻana o ke kaulahao polymer a hoʻomaikaʻi i ka hana ʻelemakule wela lōʻihi.

Hoʻonui Hoʻokuʻu ʻana i ka Mold

Me nā waiwai lubricating waho akahai, hoʻomaikaʻi ia i ka hoʻokuʻu ʻana ma waena o ka mea a me ka lua mold a hoʻohaʻahaʻa i ka pilikia pipili. ʻAʻole e like me nā lubricants waho ikaika, ʻaʻole ia e hoʻoulu i ka pua a i ʻole ka exudation o ka ʻili, a mālama i ka ʻōlinolino a me ka maikaʻi o ka ʻike maka o nā ʻāpana i pau.

Ka Wehewehe ʻenehana: Pehea e ʻokoʻa ai nā Lubricants maʻamau 3

Hilinaʻi kahi ʻōnaehana lubrication ikaika i ka synergy o ka lubrication kūloko a me waho. He kuleana koʻikoʻi ko kēlā me kēia mea hoʻohui; ʻo ka huikau ʻana iā lākou e alakaʻi pinepine ai i ka hāʻule ʻana o ka hana ʻana:

ʻO Calcium Stearate: ʻO ka lubricant kūloko mua me ka lubricity waho nāwaliwali

Hana i loko o ka heheʻe e hoʻolaha i ka gelation like, ʻoiai e hāʻawi ana i ka omo ʻakika a me ka hoʻopaʻa like ʻana. Hoʻokumu ia i ke kumu o ka ʻōnaehana lubrication a ʻaʻole hiki ke hoʻololi maʻalahi ʻia.

ʻAkika Stearic: Lubrication waho maʻamau

Hana ma ka neʻe ʻana i ka ʻili heheʻe e hōʻemi i ka friction ma waena o ka mea a me nā ʻili pili metala. Hoʻohana wale ʻia a i ʻole ma ke keu, hoʻopaneʻe nui ia i ka manawa gelation a hoʻoulu pinepine i nā hemahema o ka ʻili e like me ka pua ʻana a me ka exudation.

PE Wax: Lubrication waho hana kiʻekiʻe

Hana kūikawā ʻia no ka hōʻemi ʻana i ka hoʻopili ʻana o ka metala, hoʻonui i ka ʻōlinolino o ka ʻili a hiki ke hoʻoikaika i ka wikiwiki o ka laina. ʻOi aku ia ma mua o ka waikawa stearic i nā mahana kiʻekiʻe, akā ʻaʻole hāʻawi i nā pono o ka omo ʻana o ka waikawa a i ʻole ka hoʻopaʻa ʻana i ka wela - ʻaʻole hiki ke pani i ka calcium stearate.

ʻO ka mea huna i ka hana paʻa: E kaulike i kāu lubrication

No nā ʻenekinia hana a me ka maikaʻi, ʻaʻohe mea lubricant honua - he ʻano hana kaulike maikaʻi wale nō.

Pono ka lubrication kūloko (e kau ana ma luna o ka calcium stearate) a me ka lubrication waho (e pili ana i ka PE wax a i ʻole ka stearic acid) e mālama i kahi ratio pololei. ʻO ka calcium stearate lawa ʻole, a i ʻole nā ​​​​huahana me ka nui o nā ʻāpana ma lalo o ke kūlana, e hoʻoulu pololei i ka hoʻopili ʻana o ka pauka, ka hoʻolaha ʻana o ka masterbatch maikaʻi ʻole a me nā piʻi kaomi maʻamau ʻole i loko o ka extruder, e hōʻeha ana i ka pono a me ka hua.

Ua hōʻoia ka ʻikepili hana nui e hāʻawi ana ka 325-mesh calcium stearate i ka dispersibility maikaʻi loa, ka gelation like a me ka laumania ʻoi aku ka maikaʻi, e lilo ia i koho makemake ʻia no ka hana PVC paʻa a kiʻekiʻe.

Hāʻawi mākou i ka calcium stearate papa kiʻekiʻe me nā kikoʻī kikoʻī o nā ʻāpana a me ka hana batch kūlike, loaʻa i nā hoʻouna piha pahu (FCL) e kākoʻo i nā laina hana PVC nui.

E ʻoluʻolu e hoʻouna i kahi leka pololei e noi ai i ka Pepa ʻIkepili ʻenehana piha (TDS) a i ʻole nā ​​​​​​hāʻawina hoʻāʻo.

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