Spiral chitoliro, yomwe imadziwikanso kuti spiral steel pipe kapena spiral welded chitoliro, ndi chitsulo chochepa cha carbon structural steel kapena low-alloy structural chitsulo chingwe chokulungidwa mu chubu chopanda kanthu pa ngodya ina ya helical (yotchedwanso kupanga ngodya), yomwe imadziwikanso kuti spiral chubu kapena thupi lozungulira. Kunja kwa chubu cha spiral chubu ndi pafupifupi 30 nanometers, mkati mwake ndi pafupifupi 10 nanometers, ndipo phula pakati pa ma spirals oyandikana ndi pafupifupi 11 nanometers.

Kodi ndi njira ziti zodziwira ngati mipope yowotcherera yozungulira m'mimba mwake yayikulu ili yoyenera?

1. Kuyang'anira ndi njira yakuthupi: njira yoyang'anira thupi ndi njira yoyezera kapena kuyang'ana pogwiritsa ntchito zochitika zina zakuthupi.

2. Kuyesa kwamphamvu kwa chotengera choponderezedwa: Kuphatikiza pa kuyesa kolimba, chotengera chokakamiza chimafunikanso kuyesa mphamvu. Nthawi zambiri pali mitundu iwiri ya mayeso a hydrostatic ndi kuyesa kwa mpweya. Onse amayang'ana kulimba kwa ma welds m'zombo ndi mapaipi omwe amagwira ntchito mopanikizika. Kuyesa kwamphamvu kwa mpweya kumakhala kosavuta komanso kofulumira kuposa kuyesa kwa hydraulic. Pa nthawi yomweyo, lalikulu m'mimba mwake wozungulira welded chitoliro pambuyo mayeso sayenera kutsanulidwa, amene makamaka oyenera mankhwala ndi ngalande zovuta. Komabe, chiwopsezo cha mayeso ndi chachikulu kuposa cha mayeso a hydrostatic. Pakuyesa, njira zofananira zachitetezo ziyenera kutsatiridwa kuti mupewe ngozi pakuyesedwa.
3. Kuyesa kwa Hydrostatic: Chitoliro chilichonse chozungulira chozungulira chachikulu chiyenera kuyesedwa ndi hydrostatic pressure test popanda kutayikira. Kuthamanga kwa mayeso kumawerengedwa motere: P = 2ST / D.
Mu chilinganizo, S-kupsyinjika mayeso Mpa wa hydrostatic mayeso, ndi kupsyinjika mayeso a hydrostatic mayeso amasankhidwa malinga 60% ya zokolola mtengo wotchulidwa mu lolingana zitsulo Mzere muyezo.

4. Kuweruza kuchokera pamwamba, ndiko kuti, kuyang'ana maonekedwe, ndi njira yosavuta komanso yogwiritsidwa ntchito kwambiri yoyendera. Ndi gawo lofunikira pakuwunika komaliza. Ndiko makamaka kupeza zolakwika pa weld pamwamba ndi dimensional zopatuka. Nthawi zambiri, imawunikiridwa ndi maso amaliseche, mothandizidwa ndi ma templates, ma geji, magalasi okulitsa ndi zida zina. Ngati pali cholakwika pamwamba pa weld, pali kuthekera kwa cholakwika mkati mwa weld.