Kev kuaj roj khov

(1) Cov khoom lag luam: Cov roj av roj tub yees, cov roj hluavtaws hluavtaws (POE, PVE, PAG, AB, thiab lwm yam), cov roj tub yees tub yees, cov roj cua txias txias, cov roj cia txias txias, cov roj cua txias compressor tshwj xeeb cov tub yees roj, hauv kev siv cov roj tub yees.

(2) Cov tub yees siv tau: ntau yam tub yees xws li R22, R134a, R404A, R410A, R32, thiab lwm yam. yog txuam nrog cov roj tub yees.

(3) Cov xwm txheej siv tau: Kev lees txais roj tshiab, hauv kev siv roj saib xyuas, kev txiav txim siab sib xws nrog cov tub yees, kev txheeb xyuas degradation, kev kuaj xyuas compressor, kev txiav txim siab zoo.

(1) Cov tsos mob thiab lub cev thiab tshuaj lom neeg
Cov tsos, chromaticity, kinematic viscosity, viscosity Performance index, ntom, flash point, ncuav point, ncuav point, noo noo cov ntsiab lus, mechanical impurities, acid nqi, tshauv ntsiab lus, residual carbon, insoluble teeb meem, volatility.

(2) Tsis tshua muaj kub thiab thermochemical zog
Tsawg kub fluidity, qis kub pib-nce, thermal stability, oxidation stability, tshuaj stability.

(3) Compatibility nrog cov tub yees
Compatibility nrog refrigerants, delamination, emulsification, nag lossis daus.

(4) Lubrication, tiv thaiv - hnav, thiab sealing kev ua tau zoo
Hnav tsis kam, plaub lub pob xeem, hnav qhov chaw txoj kab uas hla, lubricity, compatibility nrog sealing cov ntaub ntawv, rwb thaiv tsev (qee qauv).

(4) Kev tiv thaiv corrosion, xeb tiv thaiv thiab tu kev ua haujlwm
Copper corrosion, kua-theem corrosion, xeb kuj, huv si, impurity cov ntsiab lus, thiab pom kev ua tau zoo.

(5) Elemental thiab Deterioration Analysis
Cov khoom siv hlau, cov khoom siv ntxiv, cov khoom muaj kuab paug, thiab qib ntawm oxidation degradation.