Ngwakọta nke antifreeze na ihe onwunwe ya
Ihe
Nkọwa zuru oke na akụrụngwa
Ngwakọta qualitative nke antifreeze adịghị iche na analogues si mba ọzọ. Ndịiche dị naanị na pasentị nke akụrụngwa. Ebe oyi na-ekpo ọkụ nwere mmiri distilled ma ọ bụ deionized, etanediol ma ọ bụ propanediol alcohols, ihe mgbakwunye mgbochi corrosion na ihe esiji. Na mgbakwunye, a na-ewebata reagent (sodium hydroxide, benzotriazole) na defoamer, polymethylsiloxane.
Dị ka ihe na-ekpo ọkụ ndị ọzọ, antifreeze na-ebelata okpomọkụ nke mmiri kristal ma na-ebelata mgbasawanye nke ice mgbe ọ kwụsịrị. Nke a na-egbochi mmebi nke jaketị nke sistemu jụrụ oyi n'oge oyi. Ọ nwere mmanu mmanu na mgbochi corrosion.
Kedu ihe agụnyere na antifirizi?
A maara ọtụtụ iri na abuo antifirizi "ntụziaka" - ma na inorganic inhibitors na carboxylate ma ọ bụ lobrid analogues. The kpochapụwo mejupụtara antifreeze kọwara n'okpuru ebe, nakwa dị ka pasent na ọrụ nke chemical components.
- Glycols
Monohydric ma ọ bụ polyhydric alcohols - ethylene glycol, propanediol, glycerin. Mgbe ị na-emekọrịta ihe na mmiri, a na-ebelata ebe na-ekpo ọkụ nke ngwọta ikpeazụ, na-esikwa esi mmiri mmiri na-amụba. Ọdịnaya: 25-75%.
- Mmiri
A na-eji mmiri eme ihe. Isi coolant. Na-ewepụ okpomọkụ site na ebe ọrụ ọkụ. Pasent - site na 10 ruo 45%.
- Anya
Tosol A-40 na-acha anụnụ anụnụ, nke na-egosi ebe na-ekpo ọkụ (-40 Celsius C) na ebe isi nke 115 Celsius. Enwekwara analogue na-acha uhie uhie nwere ebe kristal nke -65 Celsius. Uranine, sodium nnu nke fluorescein, na-eji dị ka agba agba. Pasent: ihe na-erughị 0,01%. Ebumnuche nke agba agba bụ iji anya chọpụta ọnụọgụ coolant na tank mgbasawanye, ma na-ejekwa ozi iji chọpụta ntanye.
Ihe mgbakwunye - corrosion inhibitors na defoamers
N'ihi ọnụ ala dị ala, a na-ejikarị eme ihe ngbanwe inorganic. Enwekwara ụdị nke coolants dabere na organic, silicate na polymer composite inhibitors.
| Ihe mgbakwunye | Класс | Ihe |
| Nitrites, nitrates, phosphates na sodium borates. Alkali metal silicates
| Inorganic | 0,01-4% |
| Acids carboxylic acid abụọ, atọ na nnu ha. A na-ejikarị succinic, adipic na decandioic acid eme ihe. | Organic | 2-6% |
| Silicone polymers, polymethylsiloxane | Polymer composite (lobrid) defoamers | 0,0006-0,02% |
A na-ewebata defoamers iji belata ụfụfụ nke antifirizi. Ụfụfụ na-egbochi ikpo ọkụ ma na-emepụta ihe ize ndụ nke mmetọ nke bearings na ihe ndị ọzọ na-emepụta ihe na ngwaahịa corrosion.
Ogo antifirizi na ndụ ọrụ
Site n'ịgbanwe agba nke antifreeze, onye nwere ike ikpe ikpe steeti coolant. Ọhụrụ mgbochi friza nwere agba anụnụ anụnụ na-egbuke egbuke. N'oge ọrụ, mmiri mmiri na-enweta tint na-acha odo odo, mgbe ahụ agba na-apụ n'anya kpamkpam. Nke a na-eme n'ihi mmebi nke corrosion inhibitors, nke na-egosi mkpa ọ dị iji dochie coolant. Na omume, ndụ ọrụ nke antifirizi bụ 2-5 afọ.
