ʻO ka pīpī ʻana o ka epoxy a me ka uhi ʻana o Halar

I. He aha ka uhi ʻana i ka epoxy?

ʻO ka uhi ʻana i ka epoxy spray he uhi ʻelua ʻāpana me ka epoxy resin ma ke ʻano he mea hana kiʻiʻoniʻoni nui. Hoʻopili ʻia ia ma ka ʻili metala ma o ka pīpī ʻana a i ʻole ka palaki ʻana e hana i kahi papa pale. Hōʻike ʻia ia e ka hoʻopili ikaika a me ke kūpaʻa maikaʻi loa i ka ʻili cathodic. Hiki i kahi uhi hoʻokahi ke hoʻokō i ke kūkulu ʻana i ka mānoanoa (a hiki i 1250 microns) me ka ʻole o ka sagging. Hoʻōla ʻia ia i ka mahana o ka lumi a maʻalahi ke kūkulu. He kūpono ka uhi ʻana i ka erosion a me ka corrosion o nā laina pipeline, nā ipu, nā pamu a me nā valves a me nā lako ʻē aʻe, a hiki i ka mahana hana ke hiki i kahi 120°C.

II. He aha ka uhi ʻana o Halar?

ʻO Halar ka inoa kālepa o ka ECTFE (ethylene-chlorotrifluoroethylene copolymer) fluoropolymer powder coating, he mea hana kiʻekiʻe ia me ka fluorine. Hoʻopili ʻia ia ma luna o ka ʻili o nā substrates metala ma o ke kaʻina hana pīpī electrostatic, me kahi kiko heheʻe ma waena o 220-245°C a me ka mahana hoʻohana mau loa o 150°C.

III.He aha ka ʻokoʻa o ke kūpaʻa ʻana i ka pala kemika ma waena o nā mea ʻelua?

ʻOi aku ka piha o nā uhi Halar a ʻoi aku ka maikaʻi o ke kūpaʻa kemika. Hiki iā ia ke kū i ka aneane o nā waikawa ikaika, nā kumu ikaika a me nā mea hoʻoheheʻe oZrganic me kahi pae pH o 1-14. Hiki ke hoʻomoʻa mau ʻia i loko o nā kemika koʻikoʻi e like me 98% sulfuric acid i hoʻopaʻa ʻia a me 37% hydrochloric acid ma 121°C no 30 mau lā. ʻOi aku ka liʻiliʻi o nā loli o ke kaumaha o ka uhi ma mua o 1% a ʻaʻohe loli koʻikoʻi o nā waiwai mechanical. Loaʻa iā ia ka hydrophobicity maikaʻi loa a me ke kūpaʻa komo ʻana, hiki ke pale pono i nā media corrosive mai ke komo ʻana i ka uhi a hiki i ka substrate metala. ʻOiai he kūpaʻa kemika maikaʻi ko nā uhi epoxy, ʻoi aku ka nāwaliwali o ko lākou hiki ke kū i nā waikawa ikaika (e like me ka sulfuric acid, hydrochloric acid) a me nā mahana kiʻekiʻe ma mua o nā uhi Halar.

ʻEhā.ʻO wai ka mea ʻoi aku ka maikaʻi ma ke ʻano o ka hana o ka ʻili a me ke kūpaʻa?

He laumania loa ka ʻili o ka uhi ʻana o Halar (ʻo ka awelika o ka ʻoʻoleʻa ʻo Ra ma kahi o 22nm wale nō), ʻoi aku ka maikaʻi ma mua o ka uhi ʻana o ka epoxy. Hiki i ka ʻili laumania ke kāohi pono i ka hoʻopili ʻana a me ka hōʻiliʻili ʻana o nā ʻāpana a me nā paʻakai metala, hoʻemi i ka hoʻokumu ʻia ʻana o ka biofilm, hoʻemi i ka pilikia o nā pinholes, a hoʻonui i ka hilinaʻi anti-corrosion. Eia kekahi, he paʻa ka uhi ʻana o Halar, kū i ke kahakaha a kū i ka hopena, a he kūpaʻa UV ikaika, no laila ʻaʻole ia e mae a mae paha ke hoʻohana ʻia ma waho.

V. Pehea e koho ai i kahi hopena uhi kūpono?

Manaʻo ʻia e koho i ka uhi ʻana o Halar i ka wā——

1. Hoʻopili me ka waikawa ikaika, ka alkali ikaika a i ʻole nā ​​​​​​kemika ʻino i hui pū ʻia;

2. ʻOi aku ka mahana hana ma mua o 120 ℃ (ʻoi loa he 150 ℃);

3. Kaiapuni ultraviolet ikaika a i ʻole waho;

4. Pono kahi ʻili laumania loa e pale aku i ka pipili ʻana o nā ʻāpana;

Manaʻo ʻia e koho i ka uhi epoxy i nā kūlana aʻe:

1. Kaiapuni kūʻokoʻa a palupalu paha, ma lalo o 120°C ka mahana;

2. He pōkole ka manawa kūkulu a pono e hoʻoponopono koke ʻia;

3. He ʻano koʻikoʻi ke kaohi ʻana i nā kumukūʻai.

VI.Hopena

ʻO Tianjin Tanggu Wai-Seal Valve Co., Ltdhe hui loea loea e hiki ke hana kūikawānā kiwikā pepeke, nā kiwikā puka, nā kiwikā nānāa me nā huahana valve ʻē aʻe e like me kāu mau kūlana hana kikoʻī, a hāʻawi i nā hoʻonā pīpī e hoʻokō i nā koi anti-corrosion kikoʻī. Inā he pīpī epoxy a i ʻole ka uhi ʻana ʻo Halar, hiki iā mākou ke koho pololei i nā mea a kūkulu ʻepekema iā lākou e hōʻoia i ka paʻa a me ka hilinaʻi o ka valve i nā wahi ʻino. Welina mai e waiho i kāu mau koi kūlana hana, a e hana mākou i kahi valve i hoʻohui kūikawā ʻia a me ka hopena uhi no ʻoe.