Anti-corrosion steel pipe hpe wan sau, tsi mawan, shingra wan sau hpaga lam ni hta grai lang ma ai. Shi a madung npawt tara gaw, laksan ladat ni hku nna, n-gun n rawng ai lam hpe pat shingdang na matu hte shi a daw jau ai lam hpe jat wa na matu re. Application ladat hta madung hku nna madung lahkam masum lawm ai: ntsa lam hpe tsi lajang ai, shingnip shingna lang ai, jep joi ai lam ni hpe galaw ai.
1. Nlung madin hte tsi lajang ai lam
Anti{0}}corrosion steel pipe hpe lang ai shawng nnan na lahkam gaw, n-gun n-gun, sau, oxide layers ni hpe yeng seng kau na matu, ntsa hpe atsawm sha jasan jaseng ra ai. Common ladat ni hta sandblasting (Sa2.5 (sh) dai hta jan ai) shing nrai chemical pickling ni lawm nna, coating adhesion hpe grau kaja hkra galaw na matu, npu na n-gun n rawng ai lam hpe hkam la lu na matu. Anti-corrosion tsi lajang ai lam hpe hkying hkum 4 laman hta lang nna, secondary oxidation hpe makawp maga ra ai.
2. Hkrang shapraw ai lam
Anti-corrosion steel pipe a matu, epoxy nhprang wan n-gun, 3PE (masum-layer polyethylene), FBE (fusion bonded epoxy powder) ni lawm ai.
Epoxy coal tar: brush (sh) spray hte jai lang ai, dai hta coat lahkawng lawm ai: primer hte topcoat, 0.6mm hta grau kaba ai (sh) maren sha rai nga ai. Curing hpe hkying hkum 24 tup hka lim ai shara hta ra ai. Lup makoi da ai pipeline ni a matu htuk manu ai.
FBE Antinorrosion: Epoxy powder hpe n-gun n rawng ai hku hka lim kau ai majaw, n-gun kaba ai shara ni hta hka lim mat nna, n-gun ja ai shingnip langai mi byin pru wa ai. Dai n-gun gaw 400-1000μm rai nna, grai kaja ai n-gun ja ai hpe ninghkap lu ai.
3. Quality
Hpang jahtum, n-gun ja ai hku jep joi ai lam ni ra ai, dai hta, myi hte mu lu ai hku jep joi ai lam (bubbles hte cracks ni a matu), n-gun shadawn ai lam hpe shadawn ai), nhtoi htoi ai hpe sawk sagawn ai lam (hka lim ai lam n nga ai hpe kam na matu), hte adhesion chyam dinglik ai lam ni lawm ai. N-htuk ai shara ni hpe lawan ladan gram lajang ra ai, dai hku galaw yang, kaja ai anticosion hpe galaw ra ai.
Sadi maja ai lam: Paint hte skin lapran matut mahkai lam n byin hkra, operation galaw ai shaloi makawp maga ai arung arai ni hpe bu hpun u. Ambient nbung katsi ai lam gaw 5℃hte 40℃lapran rai ra ai, 85% npu na hka lim ai lam mung rai ra ai. Kaja ai hku galaw ai gaw, n-gang pipe ni a n-gun hpe grai shatsaw ya lu ai majaw, bungli masing a shim lum lam hte asak galu hkra galaw ya lu ai.
