Corrosion bụ otu n'ime ihe ndị dị mkpa na-akpatavalvụ urukurubụba mmebi. N'imevalvụ urukurubụba nchebe,valvụ urukurubụba Nchedo corrosion bụ ihe dị mkpa ị ga-atụle. Maka metalvalvụ urukurubụbas, ọgwụgwọ mkpuchi elu bụ ụzọ nchebe kachasị mma na-akwụ ụgwọ.
Ọrụ nkeigwevalvụ urukurubụba mkpuchi elu
01. Ọta
Mgbe a na-ekpuchi elu ígwè ahụ na agba, n'elu igwe dịpụrụ adịpụ na gburugburu ebe obibi. Enwere ike ịkpọ mmetụta nchebe a. Ma a ghaghị ịkọwapụta na akwa akwa akwa enweghị ike ịrụ ọrụ nchebe zuru oke. N'ihi na polymer dị elu nwere ụfọdụ permeability nke ikuku, mgbe mkpuchi ahụ dị oke mkpa, pores nhazi ya na-ekwe ka ụmụ irighiri mmiri na ikuku oxygen gafere n'efu. Adụ-akaravalvụ urukurubụbas nwere ihe siri ike chọrọ na ọkpụrụkpụ nke mkpuchi epoxy n'elu. Enwere ike ịhụ na maka ọtụtụ mkpuchi ọnụ ahịa dị ukwuu karịa nchara nchara na-enweghị mkpuchi. Iji mee ka ihe na-adịghị mma nke mkpuchi ahụ dịkwuo mma, ihe mkpuchi mgbochi na-eme ka ọ bụrụ ihe na-emepụta ihe nkiri na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-eme ka ikuku dị ala na ihe siri ike nke nwere nnukwu ihe nchebe, ma n'otu oge ahụ, a ghaghị ịbawanye ọnụ ọgụgụ nke mkpuchi mkpuchi. nke mere na mkpuchi ahụ nwere ike iru ụfọdụ ọkpụrụkpụ ma bụrụ nnukwu ma na-enweghị porous.
02. Mgbochi corrosion
Site n'imeghachi ihe ndị dị n'ime ime nke mkpuchi ahụ na ígwè ahụ, a na-agafe n'elu ígwè ma ọ bụ ihe nchebe na-emepụta iji meziwanye mmetụta nchebe nke mkpuchi ahụ.valvụ urukurubụbaseji maka ihe pụrụ iche chọrọ ga-aṅa ntị na nhazi nke agba iji zere mmetụta ọjọọ dị njọ. Na mgbakwunye, nkedo ígwèvalvụ urukurubụba eji na pipeline mmanụ, ngwaahịa na-emebi emebi nke a na-emepụta n'okpuru ọrụ nke ụfọdụ mmanụ na ihicha ncha nke ncha ígwè nwekwara ike ịrụ ọrụ nke ndị na-egbochi corrosion organic.
03. Electrochemical nchebe
Electrochemical corrosion n'okpuru ihe nkiri na-eme mgbe mkpuchi dielectric permeable batara na kọntaktị na elu igwe. Jiri ọla nwere ọrụ dị elu karịa ígwè dị ka ihe ndochi na mkpuchi, dị ka zinc. Ọ ga-arụ ọrụ nchebe nke anode àjà, na ngwaahịa corrosion nke zinc bụ isi zinc chloride na zinc carbonate, nke ga-ejupụta oghere nke akpụkpọ ahụ ma mee ka akpụkpọ ahụ sie ike, nke na-ebelata corrosion nke ukwuu ma mee ka ndụ ọrụ dịkwuo ogologo.valvụ urukurubụba.
Ihe mkpuchi a na-ejikarị eme ihe maka ọlavalvụ urukurubụbas
01.valvụ urukurubụba Ozu epoxy resin mkpuchi
Nwere njirimara ndị a:
Nguzogide corrosion
Ogwe nchara nwere epoxy nwere ezigbo nguzogide corrosion, na ike nkekọ na kọnk na-ebelata nke ukwuu. Ọ dabara maka ọnọdụ mmepụta ihe na gburugburu iru mmiri ma ọ bụ mgbasa ozi ike ike.
ike adhesion
Ọnụnọ nke polar hydroxyl na ether bond dị n'ime agbụ molekụla nke resin epoxy na-eme ka ọ na-arapara nke ukwuu na ihe dị iche iche. Epoxy resin nwere obere shrinkage n'oge a na-agwọ ọrịa, na nrụgide dị n'ime ya na-emepụta dị ntakịrị, na mkpuchi elu nchebe adịghị mfe ịdapụ ma daa.
Njirimara eletrik
Sistemụ resin epoxy gwọrọ bụ ihe mkpuchi mkpuchi mara mma nke nwere akụrụngwa dielectric dị elu, nguzogide ntapu elu yana nguzogide arc.
ebu na-eguzogide
Usoro epoxy gwọrọ na-eguzogide ọtụtụ ebu ma enwere ike iji ya na ọnọdụ okpomọkụ siri ike.
02.valvụ urukurubụba efere nylon efere ihe
Ibé akwụkwọ naịlọn na-eguzogide nrụrụ nke ukwuu ma ejirila ya mee ihe nke ọma n'ọtụtụ ngwa dị ka mmiri, apịtị, nri, na ịsa mmiri.
mmekọahụ n'èzí
Ihe mkpuchi naịlọn nwere ike ịgafe ule ịgba nnu nnu, na mkpuchi ahụ ewepụbeghị mgbe etinyere ya n'ime mmiri mmiri ruo ihe karịrị afọ 25, n'ihi ya, ọ dịghị corrosion na akụkụ ígwè.
iguzogide abrasion
Nwere ezigbo nguzogide mmebi.
mmetụta iguzogide
Enweghị ihe ịrịba ama nke peeling n'okpuru mmetụta siri ike.
Oge nzipu: Nov-24-2022
