Mundima yezvinhu zvemapombi eindasitiri, chiyero cheAmericaASME SA335/ASTM A335 P9Mapaipi esimbi asina musono ane chinzvimbo chakakosha nekuda kwehunhu hwawo hwakasiyana. Vanhu vazhinji vanoshamisika: P9 inogadzirwa nechinhu chipi? P9 yakafanana negiredhi ripi muchiyero chenyika? P9 inoenderana nechinhu chipi muchiyero chenyika? Inotevera mhinduro yakadzama kwauri.

I. Hunhu uye Minda yeMashandisirwo eP9 Material
Mutauro weAmerican ASME SA335/ASTM A335 P9 ipombi yesimbi isina musono yakagadzirwa neferritic alloy inoshanda mumamiriro ekushanda anodziya zvakanyanya. Chinangwa chayo chikuru chekugadzira ndechekupa mabhoyira anodziya zvakanyanya, ane pressure yakawanda uye ane ultra-high-pressure, uye inoshandiswa zvakanyanya mukugadzira zvinhu zvakakosha zvakaita semachubhu esuperheater, machubhu ereheater, machubhu egasi anotungamira uye machubhu makuru esteam. Muindasitiri yepetrochemical, kugadzirwa kwemaboyira anodziya zvakanyanya, masuperheater, maheat exchangers uye mapipe fittings hakugonewo kuita pasina machubhu eP9 ane temperature high-temperature. Inogona kuchengetedza hunhu hwakagadzikana hwemuviri nemakemikari munzvimbo dzinodziya zvakanyanya, ichivimbisa kushanda kwakachengeteka uye kwakanaka kwemidziyo ine chekuita nazvo.
II. Kuenzanisa P9 nemagiredhi eNational standard
Zvinhu zviri muAmerican standardASTM A335 P9Pombi yesimbi isina musono yakaenzana negiredhi re12Cr9Mo reChinese standard GB/T 5310. Kana tichienzanisa kubva pazvinhu zvakawanda zvakaita semakemikari, hunhu hwemakanika uye mamiriro ekutumira, zviviri izvi zvakafanana zvakanyanya uye zvinogona kushandiswa zvichichinjana. Mukugadzirwa chaiko kwemaindasitiri, kunzwisisa hukama uhwu hunoenderana kunogona kubatsira mabhizinesi kuve nekuchinjika kwakanyanya mukusarudza zvinhu uye kusangana nezvinodiwa zvepurojekiti pasi pemitemo yakasiyana.

III. Kuongororwa Kwakakwana Kwemitemo Yekushandisa
Mipimo yekushandisa mapaipi esimbi eP9 superalloy ndeiyi ASME SA335/SA335M uye ASTM A335/A335M, uye yakafanana nemiyero yenyika.GB/T 9948, GB/T 5310uye chiyero cheAmericaASTM A213Kunyatsotevedzera mitemo iyi mukugadzirwa kunoita kuti hunhu hwemapaipi esimbi asina musono eP9 alloy huve hwakasimba uye hwakavimbika, zvichiita kuti akwanise kusangana nezvinodiwa uye ashandiswe zvakanaka mumapurojekiti akasiyana-siyana emaindasitiri pasi rese.

Iv. Kuburitswa kweMakemikoro
Mapaipi esimbi asina musono eASTM A335 P9 alloy ekuAmerica ane mwero wakasimba wekuumbwa kwemakemikari:

C: ≤0.15. Kudzora kwakarurama kwehuwandu hwekabhoni kwakakosha zvikuru pakuenzanisa simba nekuoma kwesimbi.
Silicon: 0.25~1.00. Chinhu chesilicon chinobatsira kuwedzera simba nekuoma kwesimbi.
Mn: 0.30-0.60. Manganese inoita basa rakakosha mukuwedzera kusimba uye kuomarara kwesimbi.
P≤0.025. Kunyatso dzora huwandu hwephosphorus kunogona kuve nechokwadi chekuti simbi inoshanda zvakanaka.
S≤0.025. Kuwanda kwesarufa kwakaringana kunogona kuderedza kupwanyika kwesimbi inopisa.
Cr: 8.00-10.00. Chromium inowedzera zvakanyanya kuramba ngura uye kuramba simbi kuti isaoxidation.
Mo: 0.90-1.10. Molybdenum inowedzera simba, kuomarara uye simba rekupisa resimbi.
Zvinhu izvi zvinoshanda pamwe chete kuti mapaipi esimbi asina musono eP9 alloy ashande zvakanaka.

V. Kuratidzwa kweZvimiro zveMichina
Hunhu hwemuchina hwemapaipi esimbi asina musono eP9 alloy hwakanakawo zvikuru:

Simba rekudhonza ndiro ≥415Mpa, zvichiita kuti isatyoke kana yashandiswa simba rekudhonza.
Simba remushonga i ≥205Mpa, zvichiratidza kugona kwakanyanya kurwisa deformation.
Mwero wekureba kwe ≥22% unoratidza kuti chinhu chacho chine hunhu hwakasiyana hwe ductility.
Hunhu hwakadaro hwemakanika hunoita kuti ikwanise kushanda zvakanaka mumamiriro akasiyana-siyana ekushanda akaomarara. Saka, pombi yesimbi isina musono yeA335 P9 ine simba remakanika rakanaka kwazvo inogadzirwa sei? Dzvanya pane iyi link yevhidhiyo: Kugadzirwa kwepombi yesimbi isina musono yeA335 P9 alloy uye maitiro ekugadzira, kuti udzidze nezve maitiro ese anosanganisira kugadzirwa uye kurapwa kwekupisa.

Vi. Mamiriro Ekutumira uye Zviyero Zvekutsanangurwa
Mamiriro ekutumira: Kazhinji annealed zvizere kana isothermal annealed, yakajairika + yakanyoroveswa. Maitiro aya ekutumira anogona kuona kuti mapaipi esimbi anoshanda zvakanaka panguva yekutumira, zvichizadzisa zvinodiwa zvekugadzirisa nekushandisa zvinotevera.
Zvimiro nehukuru: Zvinofukidza huwandu hwe60.3-765*2-120. Zvimiro zvedhayamita zvakajairika zvinosanganisira 60.3, 73, 88.9, 114.3, 168.3, 219.1, 273.1, 323.9, 355.6, 406.4, 457.2, 508, 559, 610, 660, 711, uye 762. Ehe, mamwe masayizi anogonawo kugadziriswa zvichienderana nezvinodiwa nevatengi kuti vasangane nezvinodiwa zvakasiyana-siyana zvepurojekiti.
Kungave kuri kuti vatsva muindasitiri vanzwisise ruzivo rwezvinhu kana kuti nyanzvi dzisarudze zvinhu zvemapurojekiti, kunzwisisa kwakakwana kweAmerican standard ASME SA335/ASTM A335 P9 alloy seamless steel pombi kwakakosha zvikuru, izvo zvinogona kubatsira kufambira mberi kwakanaka kwemapurojekiti akasiyana-siyana eindasitiri.