ASTM A53 A795 API 5L Purogiramu yemapaipi esimbi yekabhoni makumi mana

Mapaipi esimbi yekabhoni eSchedule 40 anorongwa zvichienderana nezvinhu zvinosanganisira chiyero cheukobvu hwedhayamita nemadziro, simba rezvinhu, dhayamita yekunze, ukobvu hwemadziro, uye kugona kumanikidzwa.

Kurongwa kwehurongwa, senge Chirongwa 40, kunoratidza musanganiswa chaiwo wezvinhu izvi. Pamapaipi eChirongwa 40, anowanzova neukobvu hwemadziro huri pakati nepakati, zvichiratidza kuenzana pakati pesimba nehuremu. Huremu hwepaipi hunogona kusiyana zvichienderana nezvinhu zvakaita semhando chaiyo yesimbi yekabhoni inoshandiswa, dhayamita, uye ukobvu hwemadziro.

Kuwedzera kabhoni musimbi kunogona kukanganisa huremu, uye huwandu hwakawanda hwekabhoni hunowanzoita kuti pave nemapaipi akareruka. Zvisinei, ukobvu hwemadziro nedhayamita zvinoitawo basa rakakosha pakuona huremu.

Chirongwa 40 chinoonekwa sekirasi yepakati nepakati, yakakodzera kushandiswa kwakasiyana-siyana uko kunodiwa kuyera kumanikidzwa kuri pakati nepakati. Kana uchida rumwe ruzivo rwakadzama kana rubatsiro maererano nemapombi esimbi yekabhoni eSchedule 40, usazeza kutibata kuti uwane rumwe rubatsiro.

Tsanangudzo yePaipi yeSimbi yeCarbon yeSchedule 40

ASTM
Saizi yezita DN Dhayamita yekunze Dhayamita yekunze ukobvu hwepurogiramu 40
Ukobvu hwemadziro Ukobvu hwemadziro
[padiki] [padiki] [mm] [padiki] [mm]
1/2 15 0.84 21.3 0.109 2.77
3/4 20 1.05 26.7 0.113 2.87
1 25 1.315 33.4 0.133 3.38
1 1/4 32 1.66 42.2 0.14 3.56
1 1/2 40 1.9 48.3 0.145 3.68
2 50 2.375 60.3 0.154 3.91
2 1/2 65 2.875 73 0.203 5.16
3 80 3.5 88.9 0.216 5.49
3 1/2 90 4 101.6 0.226 5.74
4 100 4.5 114.3 0.237 6.02
5 125 5.563 141.3 0.258 6.55
6 150 6.625 168.3 0.28 7.11
8 200 8.625 219.1 0.322 8.18
10 250 10.75 273 0.365 9.27

Pombi yesimbi yekabhoni yeSchedule 40 imhando yehukuru hwepombi inoshandiswa muindasitiri yekuvaka. Inoreva ukobvu hwemadziro epombi uye chikamu chehurongwa hwakajairika hunoshandiswa kupatsanura mapaipi zvichienderana nekukora kwemadziro awo uye kugona kwawo kumanikidza.

Muhurongwa hweSchedule 40:

  • "Purogiramu" inoreva ukobvu hwemadziro epombi.
  • "Simbi yekabhoni" inoratidza kuumbwa kwezvinhu zviri mupombi, iyo inonyanya kuve kabhoni nesimbi.

Mapaipi esimbi yekabhoni eSchedule 40 anowanzo shandiswa mumabasa akasiyana-siyana, anosanganisira kutakurwa kwemvura negesi, rutsigiro rwechivakwa, uye mabasa emaindasitiri. Anozivikanwa nekusimba kwawo, kugara kwenguva refu, uye kushanduka-shanduka, zvichiita kuti ave sarudzo yakakurumbira mumapurojekiti mazhinji ekuvaka neinjiniya.

Kuumbwa kweMakemikari ePaipi yeSimbi yeCarbon yeSchedule 40

Purogiramu 40 ichave nehukobvu hwakatarwa, zvisinei nerudzi kana chimiro chesimbi inoshandiswa.

Giredhi A Giredhi B
C, % yepamusoro 0.25 0.3
Mn, % yepamusoro 0.95 1.2
P, % yepamusoro 0.05 0.05
S, % yepamusoro 0.045 0.045
Simba rekusimba, min [MPa] 330 415
Simba rekupa, min [MPa] 205 240

Nguva yekutumira: Chivabvu-24-2024