Kev xaiv cov khoom siv rau kev kho mob- qib txhaj tshuaj pwm yuav tsum ua raws li "Peb Nos" txoj cai: tsis yog- adsorbing, tsis yog -reactive, thiab yooj yim los ntxuav.
1. Cov ntaub ntawv zoo heev corrosion-resistant puag
Martensitic stainless hlau (xws li, 316L, 420SS) yog qhov kev xaiv. Muaj cov khoom xws li chromium thiab npib tsib xee, cov hlau no muaj kev tiv thaiv corrosion 5-8 npaug ntau dua li cov qauv pwm steels, ua rau lawv tiv taus cov tshuaj tua kab mob ntev ntev xws li kev kho mob - qib cawv thiab sodium hypochlorite. Piv txwv li, ib lub pwm siv los tsim IV cov khoom sib txuas ua los ntawm 316L stainless hlau pom tias tsis muaj xeb lossis corrosion pits ntawm nws qhov chaw tom qab kuaj 1,000-teev ntsev tshuaj tsuag.
Cov kev kho deg tawv tawv: Nqus quenching (ua tiav qhov hardness ntawm 52-56 HRC) thiab nitriding (nto hardness Ntau dua lossis sib npaug li 1000 HV) yog ua haujlwm los txhim kho khawb tiv thaiv, tiv thaiv cov av thiab cov kab mob los ntawm kev sib sau hauv microscopic khawb. Tom qab nitriding, qhov roughness ntawm lub syringe pwm tau raug txo los ntawm Ra 0.8 μm mus rau Ra 0.2 μm, ua rau nws nyuaj rau stains rau adhere thaum lub sij hawm ntxuav.
2. Ua tib zoo xaiv cov khoom tsis yog- hlau
Fluoroelastomers rau sealing rings: Thaum cov roj hmab zoo tib yam nyhav rau lub hnub nyoog thiab leach me me molecules, fluoroelastomers (xws li Viton) yog tshuaj resistant thiab tsis tso cov organic tebchaw. Thaum siv rau kev sib khi pwm sib cais kab, lawv xyuas kom meej tias muaj cov kab mob sib kis nyob rau hauv Chav Kawm 10,000 chav huv tseem qis dua 0.1 mg / m³.
Khoom noj khoom haus- qib roj nplua nyeem rau cov lus qhia: Cov roj nplua nyeem ib txwm muaj xws li sulfur lossis phosphorus; Yog li ntawd, cov pwm kho mob xav tau cov roj dawb (cov roj ntxhia) lossis cov roj silicone-raws li cov roj uas tau dhau ISO 10993 biocompatibility kuaj los tiv thaiv cov roj nplua nyeem ntawm cov khoom tiav.