Hka jaw ai hte hka lim ai, wan-sat ai pipeline ni, n-gang npawt nhpang ni hpe madi shadaw ai ni hpe gawgap ai hta, galvanized n-gang pipe ni hpe grai lang ma ai. Raitim, zinc n-gun yawm mat ai, n-gun yawm mat ai, npawt nhpang n-gun n-gun yawm mat ai, buga na zinc layer htum mat ai zawn re ai manghkang ni gaw law law lang byin chye ai. Ndai lam ni gaw hkrang hpe hkra machyi shangun ai sha n-ga, n-gang pipe ni a n-gun hpe lawan ladan hkra machyi shangun nna, shanhte a prat hpe kadun shangun ai. Dai majaw, galvanized steel pipe ni hta zinc n-gun yawm mat ai madung lam ni gaw hpa ni rai kun? Hkyak hkyak byin wa ai shaloi-site kaw gara hku hparan ra na kun? Bai nna, ayan gawgap ai aten hta gara hku pat shingdang mai na kun?
Shawng nnan, madung masa lahkawng hpe kadun dawk tsun dan u:
Zinc n-gun n law ai: buga shara kaw n-gun n rawng ai (sh) kaji ai- shara kaw n-gun rawng ai, zinc layer gaw ntsa lam hku sha garan mat nna, steel pipe substrate gaw n hkrat sum ai sha naw nga ai.
Zinc grai sum mat ai: shara kaba- hta magri pru wa ai, zinc layer gaw daw daw hku htum mat ai, n-gun n rawng ai hte rau, pitting pyi pru wa ai.
Dai hpang, masa lahkawng hpe shingdaw nna sawk sagawn yu u:
Zinc loi mi sum mat ai: Ndai lam gaw htaw sa ai lam hta n-gun n rawng ai, -n-gun ja ai welding, buga ginra hta shingjawng ai, kaji kajaw n-gun n rawng ai, hte kaga lam ni a majaw byin chye ai; dai hpe galaw na matu loi ai hte shara kaw nan hkrak gram lajang mai ai; gram lajang ngut ai hpang, shawng na hkrang shapraw ai lam hpe madung hku nna bai gram lajang ya ai.
Zinc grai sum mat ai: Ndai gaw galvanizing galaw ai hta n kaja ai lam ni, n-gun ja ai acid (sh) alkali n-gun ja ai, aten galu-katsi ai, shing nrai, welding galaw ai shaloi grai hkra machyi ai majaw byin chye ai; shi hpe hparan na matu grau yak ai, n-gun n rawng ai hpe shaw kau nna zinc jat bang ra ai, grai sawng ai masa hta pipe hpe galai ra ai; gram lajang ngut ai hpang, asak kadun mat nna, ayan gram lajang ra na re.
Hpang jahtum, jai lang ai mabyin masa ni hte maren sawk sagawn yu u:
Scenario 1: Gawgap ai shara kaw na n-gun kaji ni kaw na aten kadun laman zinc htum mat ai → Kaji ai shara ni hta katsi ai galvanizing paint hpe bang u, dai gaw gap na matu lawan ai, manu n law ai, aten masat hpe n hkra ai.
Scenario 2: Welding joint ni hta -area kaba hta zinc n-gun yawm mat ai → Shawng nnan grind galaw nna n-gun n-gun hpe shaw kau ra ai, dai hpang zinc-rich paint hpe yawng hpe bang ra ai, n rai yang n-gun grai law ai hte welding n-gun ni kaw na pru wa na masa nga ai.
Scenario 3: Shinggan kaw na aten galu-katsi ai shara ni hta Zinc n-gun yawm mat ai → Hot-dip galvanized pipe ni hpe lang na hpe ra sharawng ai, hpang de gram lajang ai manu hpe shayawm lu na matu gawgap ngut ai hpang makawp maga na matu topcoat hpe bang na.
Tsun ga nga yang, galvanized steel pipe ni hta zinc sum mat ai hpe hparan na matu madung tara gaw: zinc kaji kajaw sum mat ai shaloi, aten dep shara hpe gram lajang na; grai sawng ai zinc sum mat ai majaw, n-gun hpe tsep kawp shaw kau nna, bai-galvanize galaw u. Ndai manghkang hpe npawt nhpang hku nna pat shingdang na matu, ahkyak ai lam masum hpe hkang ra ai: langai, pipe ni hpe mari ai shaloi, galvanization a quality; lahkawng, htaw sa ai hte jung ai aten hta makawp maga ai lam; masum, welding galaw ngut ai hpang aten dep gram lajang ai lam. Dai lam yawng hpe atsawm sha hparan ai hku nna sha, galvanized steel pipe ni a service life hpe grau galu hkra galaw lu na re.
