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Nri ngwaahịa ngwaọrụ ahụike: ihe ịchọrọ ịma

Mgbe ọ na-abịa na mmiri mmiri roba emulsion dipping ngwaahịa, a usoro nke usoro usoro mkpa ka emechaa iji hụ na kwesịrị ekwesị ịkpụzi, vulcanization na elu ọgwụgwọ izute ndị ahịa na ngwa ikpeazụ.
Ịkpụzi ihe nrịbama nwere ike rụpụta akụrụngwa ahụike na-adịgide adịgide nke ụdị dị iche iche, nha na ọkpụrụkpụ mgbidi, gụnyere mkpuchi nyocha, mgbịrịgba, akara olu, uwe ndị dọkịta na-awa, balloons obi na akụkụ ndị ọzọ pụrụ iche.
Igwe rọba eke nwere ezigbo nkwụghachi na ike dị elu, mana ọ na-ebukwa protein nke nwere ike ibute mmeghachi ahụ nfụkasị ahụ n'ahụ mmadụ. N'ụzọ dị iche, sịntetik neoprene na sịntetik polyisoprene adịghị akpata allergies. Neoprene nwere ike iguzogide ule nke ọtụtụ ihe; ọ na-eguzogide ọkụ, mmanụ (ọkara), ihu igwe, ozone cracking, abrasion na flex cracking, alkali and acid resistance. N'ihe gbasara mmetụta na mgbanwe, polyisoprene bụ ihe na-anọchi anya rọba eke ma nwee ihu igwe ka mma karịa latex roba eke. Otú ọ dị, polyisoprene na-achụ ụfọdụ ike nkwụsịtụ, nkwụsị anya mmiri, na nhazi mkpakọ.
Okwu ahụ bụ "impregnation" metụtara ọrụ n'ụdị impregnation. N'ezie, ka a na-eme usoro ahụ, a ga-etinye tebụl n'ime ihe ahụ. Ọ dị ezigbo mkpa iji hụ na nhazi rọba kwekọrọ na ntuziaka ngwaọrụ ọgwụ FDA na ihe achọrọ.
Enwere ike ịkọwa usoro impregnation dị ka usoro ntụgharị: a na-atụgharị rọba ahụ site na mmiri mmiri na-esi ike, wee gbanwee kemịkalụ ka ọ bụrụ netwọk nke vulcanized. Nke ka mkpa bụ na usoro kemịkalụ na-agbanwe rọba site na ihe nkiri na-esighi ike ka ọ bụrụ netwọk nke ụmụ irighiri ihe nwere ike ịgbatị na nrụrụ, ma ka na-alaghachi n'ụdị mbụ ya.
Usoro nke siri ike adịghị mkpa mgbe niile maka usoro "itinye" niile, mana ọ dị mkpa maka usoro nhazi anyị. Enwere ike ịgbanwe rọba site na mmiri mmiri gaa na nke siri ike site na ihicha ikuku, mana nke a na-ewe ogologo oge. A na-emepụta akụkụ ụfọdụ nwere mgbidi n'ụzọ dị otú a. Usoro siri ike na-eji kemịkalụ ịmanye ọnọdụ anụ ahụ a ka ọ gbanwee.
Coagulant bụ ngwakọta ma ọ bụ ihe ngwọta nke nnu, surfactant, thickener, na ihe ntọhapụ na ihe mgbaze (na-emekarị mmiri). N'ime usoro ụfọdụ, a pụkwara iji mmanya na-egbu egbu mee ihe. Mmanya ahụ na-ekupụ ngwa ngwa ma ọ dị ntakịrị ihe fọdụrụnụ. Ụfọdụ coagulant dabeere na mmiri chọrọ enyemaka nke oven ma ọ bụ ụzọ ndị ọzọ iji kpoo coagulant.
Akụkụ bụ isi nke coagulant bụ nnu (calcium nitrate), nke bụ ihe na-adịghị ọnụ nke na-enye ihe kachasị mma nke coagulation n'ụdị impregnated.
A na-eji surfactant mee ka mmiri dị n'ụdị a na-agbanye mmiri ma hụ na a na-emepụta mkpuchi dị nro nke coagulant n'ụdị ahụ.
A na-eji ihe ntọhapụ, dị ka calcium carbonate, na nhazi nke coagulant iji nyere aka wepụ akụkụ rọba a gwọrọ n'ụdị etinyere.
Isi ihe na-eme ka arụ ọrụ coagulant gụnyere mkpuchi otu, mkpofu ngwa ngwa, okpomọkụ ihe, ntinye na mgbake ọsọ, na mgbanwe dị mfe ma ọ bụ na-edozi ntinye uche calcium.
Nke a bụ ọkwa ebe rọba na-agbanwe site na mmiri mmiri gaa na nke siri ike. A na-etinye ihe na-emepụta kemịkalụ nke na-akwalite coagulation, coagulant, ugbu a na-etinye ya n'ụdị dị n'ime ma kpọọ nkụ.
A na-etinye ụdị ahụ, ma ọ bụ tinye ya n'ime mmiri rọba mmiri. Mgbe roba batara na kọntaktị anụ ahụ na coagulant, calcium dị na coagulant ga-eme ka rọba ahụ ghara ịdị n'otu ma gbanwee site na mmiri mmiri gaa na nke siri ike. Ogologo oge a na-emikpu ihe nlereanya ahụ, mgbidi ahụ na-abawanye. Mmeghachi omume kemịkalụ a ga-aga n'ihu ruo mgbe a ga-eripịa calcium niile site na coagulant.
Igodo nke ntinye latex gụnyere ọsọ mbata na ọpụpụ, okpomọkụ latex, ịdị n'otu nke mkpuchi coagulant, yana njikwa pH, viscosity na mkpokọta ihe siri ike nke rọba.
Usoro ịsa ahụ bụ usoro kachasị dị irè maka iwepụ kemịkalụ mmiri na-achọghị na ngwaahịa ikpeazụ. Oge kacha mma iji wepụ ihe ndị a na-achọghị na ihe nkiri a na-etinye n'ime ya bụ leaching tupu ọgwụgwọ.
Ihe ndị bụ isi ihe na-agụnye coagulant (calcium nitrate) na roba (natural (NR); neoprene (CR); polyisoporene (IR); nitrile (NBR)). Ọzịza na-ezughị ezu nwere ike iduga "ọsụsọ", ihe nkiri na-egbuke egbuke na ngwaahịa emechara, yana ihe ize ndụ dị ukwuu nke ọdịda adhesion na mmeghachi ahụ nfụkasị.
Igodo nke ịrụ ọrụ leaching gụnyere ogo mmiri, okpomọkụ mmiri, oge obibi na mmiri na-asọ.
Nzọụkwụ a bụ ọrụ nzọụkwụ abụọ. A na-ewepụ mmiri dị na ihe nkiri roba, na ka oge na-aga, okpomọkụ nke oven ga-arụ ọrụ ngwa ngwa ma malite usoro ọgwụgwọ ma ọ bụ vulcanization. Mgbe ị na-ebuli akụrụngwa anụ ahụ kachasị mma nke ụdị rọba dị iche iche, ọgwụgwọ oge na ọgwụgwọ okpomọkụ bụ isi ihe.
Enwere ọtụtụ nhọrọ maka ịgwọ elu akụkụ nke etinyere ka akụkụ ahụ ghara ịrapara. Nhọrọ gụnyere akụkụ ntụ ntụ, mkpuchi polyurethane, ịsacha silicone, chlorination na ncha. Ọ bụ maka ihe ndị ahịa chọrọ ma ọ bụ mkpa iji mee ka ngwaahịa ha gaa nke ọma.
Ịdenye aha ọgwụ imewe na outsourcing. Debe akwụkwọ, kekọrịta ma soro akwụkwọ akụkọ injinia ndị na-eduga taa.
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Oge nzipu: Ọgọst-16-2021

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