Pehea e koho pono ai i ka valve

ʻO ka anti-corrosion oPane kinipopo keleaweʻO ke kino ke kumu nui i ke koho kūpono o nā mea.ʻOiai he nui nā mea anti-corrosion, ʻaʻole maʻalahi ke koho i ka mea kūpono, no ka mea paʻakikī loa ka pilikia o ka corrosion.ʻO kahi laʻana, ʻoi loa ka sulfuric acid i ke kila ke haʻahaʻa ka ʻike, a ke kiʻekiʻe ke kiʻekiʻe, hana ʻia ke kila.Hiki i ke kiʻi passivation ke pale i ka corrosion;Hōʻike wale ka hydrogen i ka corrosiveness ikaika i ke kila ma lalo o ke kiʻekiʻe wela a me ke kaomi kiʻekiʻe.ʻAʻole maikaʻi ka hana corrosion o ka chlorine i ka wā maloʻo, akā ʻoi loa ka corrosive inā loaʻa kahi haʻahaʻa, a ʻaʻole hiki ke hoʻohana ʻia nā mea he nui..ʻO ka paʻakikī i ke koho ʻana i nā mea kino valve ʻaʻole wale i ka noʻonoʻo ʻana i nā pilikia corrosion, akā ʻo nā mea pū kekahi e like me ke kūpaʻa ʻana a me ka pale ʻana i ka mahana, inā he kūpono ke kālā, a inā he maʻalahi ke kūʻai.No laila pono e makaʻala.

 valve pololei

ʻO ka lua, ʻo ia ka lawe ʻana i nā ana lining, e like me ka lining lead, lining aluminum, lining engineering plastics, lining natural rubber, a me nā ʻāpana synthetic like ʻole.Inā ʻae ʻia nā kūlana media, he ala hoʻokele waiwai kēia.

Eia hou, ma ke ʻano o ka haʻahaʻa haʻahaʻa a me ka mahana, ʻo ka hoʻohana ʻana i ka metala ʻole e like me ke ʻano o ke kino valve hiki ke hana maikaʻi loa i ka pale ʻana i ka corrosion.

Eia kekahi, ua ʻino ʻia ka ʻili o waho o ke kino valve e ka lewa, a ma ke ʻano maʻamau, pale ʻia nā mea kila e ka pena.

Hoʻomaopopo pinepine ʻia ka pōʻino o ka valve e like me ka pōʻino o ka mea metala o ka valve ma lalo o ka hana a kahi kemika a i ʻole electrochemical.Ma muli o ka hanana ʻana o ka "corrosion" i ka launa pū ʻana ma waena o ka metala a me ke kaiapuni a puni, pehea e hoʻokaʻawale ai i ka metala mai ke kaiapuni a puni a i ʻole ka hoʻohana ʻana i nā mea synthetic non-metallic ke kumu o ka pale ʻana i ka corrosion.

ʻO ke kino valve (me ka pāpale) o ka valve e noho ana i ka hapa nui o ke kaumaha o ka valve a pili mau me ka mea waena.No laila, hoʻokumu pinepine ʻia ke koho ʻana o ka valve ma luna o nā mea o ke kino valve.

ʻO ka corrosion o ke kino valve ʻaʻole i ʻoi aku ma mua o ʻelua ʻano, ʻo ia ka corrosion kemika a me ka corrosion electrochemical.ʻO ka nui o ka corrosion e pili ana i ka mahana, ke kaomi, nā waiwai kemika o ka waena a me ke kūpaʻa corrosion o ka mea kino valve.Hiki ke hoʻokaʻawale ʻia ka nui o ka corrosion i ʻeono pae:

1. Hoʻopau i ka pale ʻana i ka corrosion: ʻoi aku ka liʻiliʻi o ka corrosion ma mua o 0.001 mm / makahiki;

2. Kūleʻa loa i ka corrosion: ʻo ka nui o ka corrosion he 0.001 a 0.01 mm / makahiki;

3. ʻO ke kūpaʻa ʻino: ʻo ka nui o ka corrosion he 0.01 a 0.1 mm / makahiki;

4. ʻAʻole kūpaʻa ka corrosion: ʻo 0.1 a 1.0 mm ka nui o ka corrosion / makahiki;

5. Poor corrosion kū'ē: ka corrosion rate mea 1.0 i 10 mm / makahiki;

6. ʻAʻole kū i ka corrosion: ʻoi aku ka nui o ka corrosion ma mua o 10 mm / makahiki.


Ka manawa hoʻouna: Dec-13-2021