(1) Munguva yeextrusion process, tembiricha yemucheka wespiral simbi pombi inoramba ichiwedzera sezvo extrusion process inoenderera. Pakupera kweextrusion, kutonhora munzvimbo yemukati rusvingo rwechigadziko pedyo nekufa kweextrusion kwakakwirira, kusvika ku631 ° C. Iyo tembiricha yepakati lining uye yekunze cylinder haina kuchinja zvakanyanya.

(2) Munyika isiri kushanda, iyo yakanyanya kuenzana kushushikana kwespiral simbi pombi ndeye 243MPa, iyo inonyanya kutariswa pamadziro emukati epipepipe. Mune preheating state, iyo yakanyanya kukosha ndeye 286MPa, yakagoverwa pakati pemukati wemukati wemadziro emadziro. Pasi pemamiriro ekushanda, iyo yakanyanya kuenzana kushushikana ndeye 952MPa, iyo inonyanya kugoverwa munzvimbo yepamusoro-yekushisa kumucheto wepamusoro wemadziro emukati. Iyo nzvimbo yekumanikidza yekumanikidza mukati me spiral simbi pombi inonyanya kugoverwa munzvimbo yepamusoro-yekushisa, uye kugovera kwayo kwakangofanana nekugoverwa kwekushisa. Kushushikana kwekushisa kunokonzerwa nekusiyana kwekushisa kune simba guru pakuparadzirwa kwemukati wekutenderera kwe spiral steel pipe.

(3) The radial stress pane spiral simbi pombi. Munyika isiri kushanda, iyo spiral steel pipe inonyanya kukanganiswa ne prestress inopiwa nekunze prestress. Iyo spiral simbi pombi iri mu compressive stress state muradial direction. Iko kukosha kukuru ndeye 113MPa, iyo yakagoverwa pamadziro ekunze epiral simbi pombi. Mune preheating state, iyo yakanyanya radial pressure ndeye 124MPa, kunyanya yakanangidzirwa pazviso zvepamusoro uye nechepasi. Munzvimbo yekushanda, iyo yakanyanya radial pressure ndeye 337MPa, iyo inonyanya kuomeswa munzvimbo yepamusoro-yepamusoro pepipe yesimbi.