Seamless simbi pipe itambo refu yesimbi ine hollow cross-section uye isina seam dzakatenderedza. Pamusana pekusiyana kwemaitiro ayo ekugadzira, ine simba guru uye rakanaka rinopikisa. Mapombi esimbi asina musono akaunzwa panguva ino anosanganisira zvinhu zviviri uye zvakatemwa: 15CrMoG giredhi, yakatarwa 325×14 uye.12Cr1MoVGgiredhi, tsanangudzo 325 × 10.

Hunhu uye kushandiswa kwe15CrMoGpombi yesimbi
15CrMoG isimbi yechromium-molybdenum alloy, iyo huru yemakemikari zvikamu izvo zvinosanganisira carbon (C), chromium (Cr), molybdenum (Mo), nezvimwewo. Nyaya iyi ine simba guru, yakanaka oxidation resistance uye kupisa kwekushisa kwepamusoro, kunyanya mukupisa kwepamusoro uye kudzvinyirira kwakanyanya. Uye zvakare, 15CrMoG zvakare ine yakanaka welding performance uye processability.

Uses
Mapaipi esimbi asina musono akagadzirwa ne15CrMoG anonyanya kushandiswa kupisa kwepamusoro uye kudzvanywa kwepombi nemidziyo, uye anoshandiswa zvakanyanya mundima dzinotevera:

Indasitiri yemagetsi: boiler superheaters, reheaters, misoro uye mapaipi makuru ehutsi mumagetsi emagetsi emagetsi.
Chemical industry: pombi masisitimu epamusoro-tembiricha reactor mumakemikari emidziyo.
Indasitiri yePetroleum: mapaipi ekupisa kwepamusoro uye anotsinhanisa kupisa mune zvekunatsa.
Iyi pombi yesimbi inogona kuchengetedza yakanakisa mechanical zvivakwa pakupisa kwepamusoro, uye inonyanya kukodzera kune tembiricha yekushanda kwenguva refu iri pakati pe500°C ne580°C.
Hunhu uye kushandiswa kwe12Cr1MoVG simbi pombi
12Cr1MoVG ndeyepamusoro-mhando chromium-molybdenum-vanadium alloy simbi inoratidzwa nekusimba kwepamusoro, yakanaka inokambaira kuramba, uye kusimba kwakasimba uye oxidation kuramba. Kuenzaniswa ne15CrMoG, inowedzera zvishoma vanadium (V), iyo inowedzera kuvandudza kwayo kwepamusoro-tembiricha kuramba uye kugadzikana.
Uses
Mapaipi esimbi asina musono akagadzirwa ne12Cr1MoVG anowanzo shandiswa munzvimbo dzepamusoro-tembiricha uye dzakanyanya-kudzvanywa, uye huwandu hwadzo hwekushandisa hunosanganisira:
Energy field: yakakwirira-tembiricha superheaters, reheaters uye mapaipi mumagetsi emagetsi emagetsi uye zvidyarwa zvemagetsi enyukireya.
Petrochemical indasitiri: yakakwirira-tembiricha uye yakakwirira-kumanikidza kemikari michina uye mapaipi.
Boiler kugadzira: kugadzira yakakwira-kudzvanya boiler machubhu emidziyo ine yakanyanya kushanda zvinomanikidza.
Iyi mhando yepombi yesimbi inokodzera kushandiswa kwenguva refu pakushanda tembiricha inodarika 570 ° C uye ine yakasimba zvakanyanya creep resistance uye ductility.
Iyo 15CrMoG simbi pombi ine zvirevo zve 325 × 14 uye 12Cr1MoVG simbi pombi ine yakatarwa ye 325 × 10 vane zvavanotarisa. Ose ari maviri epamusoro-inoshanda seamless simbi mapaipi uye anoshandiswa zvakanyanya mumhando yepamusoro-tembiricha uye yakanyanya-kudzvanywa maindasitiri akadai sesimba, petrochemicals, uye makemikari. Zvichienderana nemamiriro ekushandisa, vashandisi vanogona kusarudza imwe yakanyatsokodzera simbi pombi zvinhu kusangana nekugadzirwa kwezvinodiwa.