Monga chitsulo chofunikira komanso chofunikira kwambiri pakumanga chuma cha dziko, mapaipi achitsulo osasinthika amagwiritsidwa ntchito kwambiri m'magawo monga zomangamanga, kukonza makina, ndi uinjiniya wamapaipi (zamadzimadzi zonyamula ndi zolimba monga madzi, mafuta, gasi, malasha, ndi boiler). mpweya). Chifukwa cha madera osiyanasiyana ogwiritsira ntchito ndikugwiritsa ntchito, ndikofunikirabe kusankha zida zoyenera ndi miyezo posankha kupewa zinyalala ndi zinthu zosatetezeka.
20 # GB8163 zoyendera madzimadzi opanda zitsulo chitoliro
Kodi chuma cha chitoliro chosasokonezeka chimatanthauza chiyani? Zomwe timazitcha nthawi zambiri kalasi, monga 20 #, 45 #, zomwe zimayimira mankhwala ake ndi zinthu zamakina monga kulimba kwamphamvu, mphamvu zokolola, ndi kuchuluka kwake. Zotsatirazi ndizo zomwe zimagwiritsidwa ntchito popanga zida zachitsulo zopanda msoko, miyeso yopangira ndikugwiritsa ntchito mwachidule ndi wolemba.
1.GB/T8162-2018, Structural msoko zitsulo mapaipi, makamaka ntchito zomangamanga ambiri structural, processing makina, zomangamanga ndi madera ena. Zoyimira: 20 #, 45 #, q345b, 40Cr, 42CrMo, etc.;
2.GB/T8163-2018, opanda zitsulo chitoliro kwa kayendedwe madzimadzi, makamaka ntchito payipi ndi kuthamanga otsika. Zoyimira: 20 #, q345b;
45 # GB8162 structural zitsulo chitoliro
3.GB/T3087- 2017, mapaipi achitsulo otsika komanso apakatikati, omwe amagwiritsidwa ntchito popanga zida zosiyanasiyana zamapaipi otentha kwambiri, mapaipi amadzi otentha opangira ma boiler otsika ndi apakatikati, mapaipi otentha kwambiri ndi mapaipi anjerwa amtundu wa ma boilers. Zoyimira: 10 #, 20 #, Q355B;
GB5310mkulu kuthamanga kukatentha chubu, zakuthupi 12Cr1MovG
4.GB/T5310-2017, mapaipi achitsulo osasunthika opangira ma boilers othamanga kwambiri, omwe amagwiritsidwa ntchito kwambiri popanga malo otenthetsera ma boiler amadzi oponderezedwa kwambiri ndi pamwamba. Pali carbon zitsulo, aloyi zitsulo ndi zosapanga dzimbiri zosagwira kutentha zosagwira mapaipi zitsulo zitsulo. Zoyimira: 20G, 15CrMoG, 12Cr1MoVG, etc.;
5.GB/T6479-2018, mipope yachitsulo chosakanizidwa ndi zida za feteleza, zomwe zimagwiritsidwa ntchito kwambiri pazida zamankhwala ndi mapaipi okhala ndi kutentha kwa -40 ~ 400 ℃ ndi zovuta zogwira ntchito za 10 ~ 30Ma. Pali mpweya structural zitsulo ndi aloyi zitsulo seamless zitsulo mapaipi. Zoyimira: q345a-bcde, 20 #, 10mowvnb, 15CrMo;
6.GB/T9948-2013, mapaipi achitsulo osasunthika ophwanya mafuta, makamaka omwe amagwiritsidwa ntchito ngati machubu ang'anjo, osinthanitsa kutentha ndi mapaipi m'malo opangira mafuta. Zoyimira: 10 #, 20 #, Q345, 15CrMo;
Nthawi yotumiza: Jan-04-2024
