Electromagnetic flowmeter yog ib qho cuab yeej uas siv lub hauv paus ntsiab lus ntawm electromagnetic induction los ntsuas qhov ntws ntawm cov kua hluav taws xob raws li lub zog hluav taws xob raug ntxias thaum cov kua hluav taws xob hla dhau ntawm qhov chaw sib nqus sab nraud.
Yog li yuav ua li cas xaiv cov khoom siv hauv ob sab hauv thiab electrode?
Kev xaiv cov khoom siv hauv ob sab phlu
■ Neoprene (CR):
Ib qho polymer tsim los ntawm emulsion polymerization ntawm chloroprene monomer. Cov roj hmab molecule no muaj cov tshuaj chlorine atoms, yog li muab piv nrog rau lwm cov roj hmab lub hom phiaj: Nws muaj zoo heev los tiv thaiv oxidation, tiv thaiv ozone, tsis-flammable, self-extinguishing tom qab hluav taws kub, roj kuj, hnyav kuj, acid thiab alkali tsis kam, thiab laus. thiab roj tsis kam. Zoo nruj thiab lwm yam zoo.
✔ Nws yog tsim rau kev ntsuas dej ntawm cov kais dej, dej hauv dej, dej hiav txwv thiab lwm yam xov xwm.
■ Polyurethane roj hmab (PU):
Nws yog polymerized los ntawm polyester (los yog polyether) thiab diisocyanamide lipid compound. Nws muaj qhov zoo ntawm kev ua haujlwm siab, lub zog zoo, siab elasticity, siab hnav tsis kam, tsim kua muag ua haujlwm, kev laus ua haujlwm, ozone tsis kam, hluav taws xob tiv thaiv thiab hluav taws xob zoo.
✔ Nws yog qhov tsim nyog rau kev ntsuas ntsuas ntawm slurry media xws li pulp thiab ore pulp.
■Polytetrafluoroethylene (P4-PTFE)
Nws yog ib qho polymer npaj los ntawm polymerization ntawm tetrafluoroethylene ua monomer. Dawb waxy, translucent, tshav kub tsis kam, txias tsis kam, yuav siv tau nyob rau hauv -180 ~ 260 ° C mus sij hawm ntev. Cov khoom no muaj cov yam ntxwv ntawm cov kua qaub thiab alkali tsis kam, tsis kam mus rau ntau yam organic solvents, tsis kam rau boiling hydrochloric acid, sulfuric acid, aqua regia, concentrated alkali corrosion.
✔ Yuav siv tau rau corrosive acid thiab alkali ntsev kua.
■Tom ntej: Polyperfluoroethylene propylene (F46-FEP)
Nws muaj cov tshuaj lom neeg ruaj khov zoo heev thiab cov hluav taws xob zoo heev, nrog rau cov tsis muaj nplaim taws, zoo hluav taws xob thiab cov khoom siv kho tshuab. Nws cov khoom siv tshuaj yog sib npaug rau polytetrafluoroethylene, nrog lub zog compressive thiab tensile lub zog zoo dua li polytetrafluoroethylene.
✔ Yuav siv tau rau corrosive acid thiab alkali ntsev kua.
■Copolymer ntawm tetrafluoroethylene thiab perfluorocarbon ntawm vinyl ether (PFA)
Cov khoom siv hauv ob sab phlu rau electromagnetic flowmeter muaj cov khoom siv tshuaj zoo ib yam li F46 thiab lub zog tensile zoo dua F46.
✔Yuav siv tau rau corrosive acid thiab alkali ntsev kua.
Xaiv cov khoom siv electrode
| 316l ua | Nws yog tsim rau cov dej phwj hauv tsev, dej phwj tuaj, dej zoo, dej phwj hauv nroog, thiab lwm yam, thiab tsis muaj zog corrosive acid-base ntsev daws. |
| Hastelloy (HB) | Haum rau non-oxidizing acids xws li hydrochloric acid (concentration tsawg dua 10%). Sodium hydroxide (concentration tsawg dua 50%) sodium hydroxide alkali tov ntawm tag nrho cov concentrations. Phosphoric acid lossis organic acid, thiab lwm yam, tab sis nitric acid tsis haum. |
| Hastelloy (HC) | Mixed acid thiab tov tov ntawm chromic acid thiab sulfuric acid. Oxidizing ntsev xws li Fe +++, Cu ++, seawater, phosphoric acid, organic acids, thiab lwm yam, tab sis tsis haum rau hydrochloric acid. |
| Titanium (Ti) | Muaj feem xyuam rau chlorides (xws li sodium chloride / magnesium chloride / calcium chloride / ferric chloride / ammonium chloride / aluminium chloride, thiab lwm yam), ntsev (xws li sodium ntsev, ammonium ntsev, hypofluorite, potassium ntsev, seawater), nitric acid (tab sis tsis suav nrog fuming nitric acid), alkalis nrog concentration ≤50% ntawm chav tsev kub (potassium hydroxide, sodium hydroxide, barium hydroxide, thiab lwm yam) tab sis tsis muaj feem xyuam rau: hydrochloric acid, sulfuric acid, phosphoric acid, hydrofluoric acid, thiab lwm yam. |
| Tantalum electrode (Ta) | Haum rau hydrochloric acid (concentration ≤ 40%), dilute sulfuric acid thiab concentrated sulfuric acid (tsis suav nrog fuming nitric acid). Muaj feem xyuam rau chlorine dioxide, ferric chloride, hypofluorous acid, hydrobromic acid, sodium cyanide, lead acetate, nitric acid (xws li fuming nitric acid) thiab aqua regia uas nws qhov kub thiab txias yog qis dua 80 ° C. Tab sis cov khoom siv electrode no tsis haum rau alkali, hydrofluoric acid, dej. |
| Platinum electrode (Pt) | Muaj feem xyuam rau yuav luag txhua cov kua qaub ntsev ntsev (xws li fuming nitric acid, fuming sulfuric acid), tsis siv rau: aqua regia, ammonia ntsev, hydrogen peroxide, concentrated hydrochloric acid (> 15%). |
Cov ntsiab lus saum toj no tsuas yog siv rau kev siv xwb, thov xa mus rau qhov kev sim tiag tiag. Tau kawg, koj tuaj yeem sab laj peb. Peb yuav muab qee cov lus qhia rau koj.
Peb lub tuam txhab kuj tsim cov khoom seem rau cov cuab yeej siv, xws li electrodes, hlau diaphragms, grounding rings, diaphragm flanges, thiab lwm yam.
Thov nias mus saib cov khoom muaj feem xyuam, ua tsaug.(Whatsapp/Wechat: +86 156 1977 8518)
Post lub sij hawm: Jan-05-2023