Ntxuav cov kauj ruam thiab sib dhos cov cai rau valve degreasing

1. Ntxuav cov kauj ruam rau valve degreasing:

Lub degreased qhov chaw ntawm lub valve yuav tsum tau kho nyob rau hauv cov txheej txheem hauv qab no ua ntej sib dhos:

(1) Raws li qhov yuav tsum tau ua, qee qhov valve yuav tsum tau polished tsis muaj machining burrs ntawm qhov chaw;

(2) Degrease tag nrho qhov chaw valve;

(3) Pickling thiab passivation yuav tsum tau ua tom qab degreasing (tus neeg saib xyuas tsis muaj phosphorus);

(4) Tom qab pickling thiab passivation, yaug nrog dej purified yam tsis muaj reagent residue (cov kauj ruam no yog tshem tawm rau carbon steel qhov chaw);

(5) Txhua qhov valve yuav tsum tau muab so qhuav nrog cov ntaub tsis-woven, thiab qhov chaw ntawm qhov chaw xws li ntaub plaub yuav tsum tsis txhob khaws cia, los yog tshuab ziab nrog cov nitrogen huv si;

(6) So txhua qhov valve nrog cov ntaub tsis-woven los yog cov ntawv lim lim uas muaj cov tshuaj analytical ntshiab cawv kom txog thaum tsis muaj xim qias neeg.

2. Kev sib dhos yuav tsum tau ua rau degreasing li qub

Cov khoom ntxuav ntawm lub degreasing valve yuav tsum tau muab kaw thiab khaws cia rau kev teeb tsa. Cov kev cai rau cov txheej txheem installation yog raws li nram no:

(1) Lub degreasing valve installation rhiav yuav tsum huv si, los yog ib ntus huv si cheeb tsam (xws li tshiab muas xim strip daim ntaub los yog yas zaj duab xis) yuav tsum tau tsim kom tsis txhob muaj plua plav nkag mus rau lub valve installation.

(2) Cov neeg ua haujlwm sib dhos yuav tsum hnav cov paj rwb huv si, cov kaus mom ntshiab paj rwb, tsis muaj plaub hau to, huv khau thiab hnab looj tes yas (degreasing).

(3) Cov cuab yeej sib dhos yuav tsum tau degreased thiab ntxuav ua ntej degreasing valve los ua kom huv.