Ndai prat na hpaga lam hte gawgap ai lam hta n mai garan ginhka ai npawt nhpang arung arai langai hku nna, madung n-gang pipe ni hta jai lang ai lam amyu myu hte bungli amyu myu nga ai, npawt nhpang gawgap ai lam kaw nna jak rung ni hpe galaw shapraw ai du hkra ahkyak ai shara ni hpe shinggrup da ai. Ndai laika buk gaw, npawt nhpang n-gang pipe a lachyum hpe tsun shaleng ai hku nna hpang nna, shi a laksan jai lang ai lam a npawt nhpang, hpaji masa, hpaji masa ni, madung lit ni hpe loi loi hte sawk sagawn na re.
I. Basic Steel Pipes ni a lachyum hte garan ginhka ai lam
Basic steel pipe ni gaw, madi shadaw ai hkrang ni, hka hpe htawt sit ai, shing nrai, jak rung arung arai ni a matu lang ai magri pipe ni hpe madung tawn nna tsun ai. Shanhte hpe madung hku nna carbon n-gang, alloy steel, shing nrai, stainless steel hte galaw da ai. Hpaga lam hpe madung tawn nna, shanhte hpe lahkawng garan nna, n-gun n rawng ai n-gang pipe ni hte welded steel pipe ni hpe garan mai ai. Seamless steel pipe ni hpe hot rolling (sh) katsi ai sumla hkrung galaw ai lam ni hku nna hpaw nna, n-gun kaba hte n-gun hpe ninghkap lu ai atsam nga ai. Dai ni hpe law malawng gaw, n-gun kaba ai{4}}}} pressure ntsin htaw sa ai lam (sh) jak rung ni a matu lang ma ai. Welded steel pipe ni hpe shinggrup da ai hte shingkyit shingkyit ni hte hpaw da ai. Shanhte gaw loi mi sha n-gun n law ai- cost rai nna, npu na- pressure ntsin htaw sa ai lam (sh) nta gap ai lam ni a matu grai lang ma ai.
Shanhte a jai lang ai lam hpe madung tawn nna, madung n-gang pipe ni hpe structural steel pipe ni (nta gap ai pipe ni zawn re ai), hka htung ni hpe htawt sit ai hka htung (ga shadawn, sau hte wan sau pipe ni zawn re ai), n-gang pipe ni (hydraulic cylinder ni a matu pipe zawn re ai) ni hku nna grau nna garan mai ai. Ndai garan ginhka ai lam gaw, arung arai ni hpe lata ai lam, bunghku n-gun hpe hkrang shapraw ai lam, ntsa lam hpe hkrak sha dawdan ya ai.
II. Foundation Steel Pipe hpe jaw ai lam ni
1. Gawgap ai lam hte mung shawa hpaji lam
Gawgap ai lam hta, foundation steel pipe hpe scaffolding, formwork hpe madi shadaw ai, structural framing hku nna grau lang ma ai. Shi a n-gun kaba hte weldability gaw aten kadun (sh) prat tup madi shadaw ai hkrang masa ni a matu kaja dik ai lata la ai lam langai mi rai nga ai. Ga shadawn, n-gun ja ai{{3}rise gawgap ai lam hta grai lang ai steel pipe scaffolding gaw, gawgap ai lam a shim lum lam hpe hkam la lu na matu, n-gun n-gun a n-gun{{4}rise gawgap ai lam hta madung tawn ai. Hka lawng npawt nhpang hte hka htung ni hpe madi shadaw ai lam ni zawn re ai mung shawa hpaji masing ni hta mung, lamu ga n-gun kaba ai hte n-gun ja ai lit ni hpe gun hpai nga ai.
2. Sau hte Gas hpaga lam
N-gun atsam hte seng ai hta n-gun rawng ai pipe hpe madung jai lang ai gaw, n-gun kaba ai- kaw na hka n-gun hpe htaw sa ai lam re. Sau hte wan sau sun galaw ai lam hta, galu kaba ai{2}} tsan ai shara ni kaw nna sau htu ai shara ni de du hkra, n-gun ja ai steel pipe hta yawng ngu na daram sha kam hpa nga ai. Ndai zawn re ai n-gang pipe gaw, n-gun n-gun n-rawng ai hpe ninghkap lu ai atsam (API 5L madang zawn re ai), n-gun kaba ai n-gun hpe ninghkap lu ai atsam (MPa shi kaw du hkra), n-gun n law ai-} n-gun n-gun n-gun n-gun (polar makau grup yin ni a matu hkan sa mai ai) zawn re ai grai sawng ai ra kadawn ai lam ni hpe hkan sa ra ai. Kade nna ai aten hta, shale gas hpe rawt jat wa ai majaw, tsaw ai{9}} n-gun kaba ai steel pipe ni gaw, shanhte a galaw shapraw ai atsam grai law ai hte hparan mai ai manu ni a majaw, shale gas pipeline network ni a matu, madung lata la ai lam tai wa sai.
3. Machinery galaw shapraw ai lam hte tinang hkrai galaw ai bungli
Machinery sector hta, madung n-gang pipe ni hpe hydraulic system piping galaw na matu raw materials hku nna lang chye ai, shaft sleeves ni hpe shadut ai, hkrak ai arung arai ni hpe lang chye ai. Ga shadawn, gawgap ai jak ni hta hydraulic cylinder ni hpe katsi ai-dwn hkrak ai n-gang pipe ni hte galaw chye ai, shanhte a kata bunghku ni a jahtum gaw system a n-gun hpe hkrak hkra hkra machyi shangun ai. Mawdaw galaw ai hta, exhaust pipe hte steering system bracket zawn re ai arung arai ni mung, n-gun n law ai hte n-gun n law ai hpe ninghkap lu ai atsam ra ai lam ni hpe hkan sa ai, galvanized (sh) stainless steel pipe ni hpe grai lang ai.
4. Hka hpe makawp maga ai lam hte Municipal Engineering
Mare kaba hka jaw ai shara ni, hka lim ai shara ni, wan hkru makawp maga ai pipeline ni yawng gaw n-gang pipe ni hpe madung tawn ai. Ductile iron pipe ni gaw grau grau nna masha ni ra sharawng wa ai raitim, n-gang pipe ni gaw, n-gun kaba ai- myit npyaw ai hka hpe htawt sit ai lam a matu galai shai mai ai lam langai mi naw rai nga ai. Kade nna ai aten hta, plastic-}lined composite steel pipe ni gaw, htunghking n-gang pipe ni a n-gun n rawng ai manghkang hpe lai di lu nna, mare kata na hka n-gun hte hka lim ai lam hta shanhte hpe jai lang ai lam hta grai rawt jat wa ai hpe mu lu ai.
III. Hpaji masa hte seng ai hkrang masa hte lata la ai lam a madung lam ni
Madung n-gang pipe ni a madung bungli galaw ai lam hpe madun ai lam ni hta, tensile n-gun, n-gun jaw ai lam, galu kaba wa ai lam, n-gun ja ai lam ni hpe hkra machyi shangun ai lam ni lawm ai. Ga shadawn, gawgap na matu Q235B steel pipe gaw 235 MPa hta grau nna Greater a n-gun hpe lu la ra ai, API 5CT steel pipe gaw panglai hkin-gau ntsa na shara ni a matu 40 J hte maren (sh) dai hte maren sha galaw ra ai. Pipe hpe lata ai shaloi ahkyak ai lam ni gaw:
Htingbu htingbyen ni a lam ni: Salt spray n-gun yawm ai- hpe hkam sharang lu ai stainless steel pipe (316L zawn re ai) hpe panglai hkin-gau ginra ni hta grau ra sharawng ai.
Load Conditions: dynamic loads ni hpe hkan sa ai structure ni a matu, n-gun rawng ai hte n-gun rawng ai n-gang pipe hpe lata la ra ai.
Sut masa: Conventional welded steel pipe hpe manu jahpu hpe shayawm na matu non{0}}} a matu lang mai ai.
IV. Htawm hpang na rawt jat galu kaba wa ai lam ni
Arung arai hpaji hta rawt jat wa ai hte maren, madung n-gang pipe ni gaw grau tsaw ai bungli galaw lu ai atsam hte grau nna laklai ai lam ni de rawt jat wa nga ai. Ga shadawn, nano{1}} hpe nsam bang da ai n-gang pipe ni gaw, n-gun hpe ninghkap lu ai atsam hpe grai kaja hkra galaw ya nna, lung seng htu ai jak ni a matu mung htuk manu ai. Fiber- hpe n-gun n law ai hte n-gun n law ai hpe kayau kaya hpawng de da ai, n-gun atsam arung arai nnan ni hta pru wa nga ai. Dai hta n-ga, digital galaw shapraw ai hpaji masa ni (laser-welded steel pipe zawn re ai ni) gaw, galaw shapraw ai atsam hte quality hpe hkang zing ai lam hta rawt malan lam ni hpe rawt jat wa shangun nga ai.
Daw dan lam
Lamu ga npawt nhpang kaw nna, transoceanic sau hte wan sau pipeline ni du hkra, npawt nhpang n-gang pipe ni gaw, dai ni na shinggyim wuhpawng hpe shanhte a kam mai ai bungli galaw ai lam hte galaw sa wa ai lam hpe madi shadaw ya nga ai. Shanhte a shingdu labau hte arawn alai ni hpe chye na ai gaw, engineering arung arai ni hpe lata ai lam hta madung rai nga ai sha n-ga, hpaga lam amyu myu hta hpaji masa rawt jat galu kaba wa na matu ahkyak ai lahkam langai mung rai nga ai. Arung arai nnan ni hte galaw shapraw ai lam ni hta rawt jat lam ni nga wa ai majaw, npawt nhpang n-gang pipe ni a jai lang ai lamu ga jarit ni gaw matut nna jat wa na re.
