I-Fusion-Bonded Epoxy Coatings Awwa C213 Standard

Incazelo emfushane:

I-Fusion-Bonded Epoxy Coatings kanye namaLinings for Steel Water Pipe and Fittings

Lena indinganiso ye-American Water Works Association(AWWA).I-FBE coatings isetshenziswa kakhulu kumapayipi amanzi ensimbi nokufakwayo, isibonelo amapayipi e-SSAW, amapayipi e-ERW, amapayipi e-LSAW amapayipi angenamthungo, izindololwane, ama-tee, izinciphisi njll. ngenjongo yokuvikela ukugqwala.

I-Fusion-bonded epoxy coatings ingxenye eyodwa ye-thermosetting ye-thermosetting eyingxenye eyomile okuthi, lapho ukushisa kusebenze, ikhiqize ukusabela kwamakhemikhali endaweni yepayipi lensimbi ngenkathi igcina ukusebenza kwezakhiwo zayo.Kusukela ngo-1960 kuqhubeke, izicelo ziye zanda zafinyelela kumasayizi amapayipi amakhulu njengezimbobo zangaphakathi nangaphandle zokufakwa kwegesi, uwoyela, amanzi namanzi angcolile.


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izinto ezibonakalayo ze-epoxy powder materials

Amandla adonsela phansi athile ku-23℃: ubuncane be-1.2 nobukhulu obungu-1.8
Ukuhlaziywa kwe-Sieve: ubuningi be-2.0
Isikhathi sejeli ku-200 ℃: ngaphansi kwama-120s

Ukuhlanza ukuqhuma kwe-abrasive

Izingxenye zensimbi ezingenalutho zizohlanzwa ngokuqhumisa ngokuhambisana ne-SSPC-SP10/NACE No. 2 ngaphandle uma kucaciswe ngenye indlela umthengi.Iphethini yehange lokuqhuma noma ukujula kwephrofayela kuzoba ngu-1.5 mil ukuya ku-4.0 mil(38 µm kuya ku-102 µm) ikalwa ngokuvumelana ne-ASTM D4417.

Ukushisa kuqala

Ipayipi elihlanziwe kufanele lishiswe ngaphambili ekushiseni okungaphansi kuka-260 ℃, umthombo wokushisa akufanele ungcolise indawo yepayipi.

Ubukhulu

Impushana enamathelayo izosetshenziswa epayipini elishiswe ngaphambilini ekugqinsileni okufanayo kwefilimu yokwelapha okungengaphansi kwamamitha ayi-12(305μm) ngaphandle noma ngaphakathi.Ubukhulu obukhulu akumele budlule u-16 mils(406μm) ngokwesilinganiso ngaphandle uma kunconywe umkhiqizi noma kucaciswe umthengi.

Ukuhlola ukusebenza kwe-epoxy ongakukhetha

Umthengi angase acacise ukuhlola okwengeziwe ukuze athole ukusebenza kwe-epoxy.Izinqubo zokuhlola ezilandelayo, zonke ezizokwenziwa emasongweni okuhlola amapayipi okukhiqiza, zingacaciswa:
1. I-cross-section porosity.
2. I-interface porosity.
3. Ukuhlaziywa kwe-Thermal (DSC).
4. Ukucindezeleka okungapheli (ukugoba).
5. Gcoba amanzi.
6. Umthelela.
7. Ukuhlolwa kwe-Cathodic disbondment.


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