Corrosion yemavharuvhu inowanzo nzwisiswa sekukuvadzwa kwezvinhu zvesimbi zvevharuvhu pasi pekuita kwemakemikari kana electrochemical nharaunda. Sezvo chiitiko che "corrosion" chichiitika mukudyidzana kwesimbi nemhoteredzo yakatenderedza, nzira yekuparadzanisa simbi kubva kune yakatenderedza kana kushandisa zvimwe zvisiri{1}}metallic synthetic zvinhu ndiko kutariswa kweanti-kuora.
Muviri wevharuvhu (kusanganisira chivharo chevhavha) yevharuvhu inotora huremu hwakawanda hwevharuvhu uye inogara ichisangana nepakati. Nokudaro, valve inowanzosarudzwa kubva kune zvinyorwa zvemuviri wevhavha.
Kuora kwemuviri wevharuvhu hakupfuuri mafomu maviri, anoti kemikari corrosion uye electrochemical corrosion. Mwero wekuora kwayo unotarwa netembiricha, kudzvanywa, makemikari zvimiro zvepakati, uye kushorwa kwekupokana kweiyo valve body material. Corrosion rates inogona kukamurwa kuita makirasi matanhatu:
1, kukwana kwekusagadzikana kwekuora: chiyero chekuora chiri pasi pe0.001 mm / gore;
2. Kunyanya kusagadzikana kwekuora: Kuparara kwehuwandu 0.001 kusvika 0.01 mm / gore;
3, kusagadzikana kwemarara: chiyero chekuora che 0.01 kusvika 0.1 mm / gore;
4, ichiri kusimba kusagadzikana: chiyero chekuora 0.1 kusvika 1.0 mm / gore;
5, kushomeka kwekusagadzikana: chiyero chekuora che1.0 kusvika 10 mm / gore;
6, kwete ngura: ngura yakakura kupfuura 10 mm / gore.
Iyo anti-kuora kwemuviri wevharuvhu ndiyo yakanyanya sarudzo chaiyo yezvinhu. Kunyangwe iyo dhizaini yekudzivirira yakapfuma kwazvo, hazvisati zviri nyore kusarudza iyo chaiyo, nekuti dambudziko rekuora rakanyanya kuoma. Semuyenzaniso, sulfuric acid inoparadza zvakanyanya kune simbi pazvishoma, uye inogadzira simbi pakakwirira. Passivation firimu inogona kudzivirira ngura; hydrogen inongoratidza kukora kwepamusoro kune simbi pasi pekupisa kwakanyanya uye kudzvanywa; kana gasi reklorini riri munzvimbo yakaoma, iyo corrosion performance haina kukura, asi kana paine humwe hunyoro, iyo corrosion performance yakasimba kwazvo, uye zvinhu zvakawanda hazvigone kushandiswa{4}} Kuomerwa pakusarudza iyo valve body material iri mukuti hazvibviri kufunga nezvedambudziko rekuora chete, asiwo kugona kutsungirira kumanikidza uye tembiricha iri nyore, kana kuri nyore kutenga, kana kudziya kwehupfumi. Saka inofanira kuva-moyo wakaoma.
Inoteverwa nematanho ekuisa, senge lining lead, lining aluminium, lining engineering mapurasitiki, lining rabha rabha uye akasiyana ekugadzira rabha. Kana mamiriro ezvenhau achibvumidza, iyi inzira yekuchengetedza.
Zvakare, pasi pemamiriro epasi uye tembiricha, kushandiswa kwezvisiri-metallic valve body materials zvinogona kushanda zvakanyanya mukudzivirira ngura.
Mukuwedzera, iyo yekunze yevharuvhu zvakare iri pasi pekuora kwemuchadenga, uye zvinhu zvesimbi zvinowanzo chengetedzwa nependi yebhurashi.
Hangzhou Xiaoshan Chuangye Metal Processing Factory
Wedzera:Zixia Village, Xintang Street, Xiaoshan District, Hangzhou City, Zhejiang Province, China
Bata nesu:Yali Yu
Tel:86-571-82793342
Fax:86-571-82778852
Nharembozha:86-13967182887
E{{0}mail:ada.huang@hzxscy.cn
