Kusankhidwa koyenera kwa mapaipi achitsulo osasunthika ndi odziwa kwambiri!

Ndi zofunika zotani posankha mapaipi achitsulo opanda msoko kuti ayendetse madzimadzi omwe amagwiritsidwa ntchito kwambiri pamakampani athu? Onani chidule cha ogwira ntchito pa mapaipi okakamiza:

Mipope yachitsulo yopanda msoko ndi mapaipi achitsulo opanda ma welds opangidwa ndi njira zochiritsira zotentha monga kuboola ndi kugudubuza kotentha.

Ngati ndi kotheka, chitoliro chamankhwala otentha chikhoza kuzizira kwambiri ku mawonekedwe ofunikira, kukula ndi ntchito. Pakalipano, mapaipi opanda zitsulo (DN15-600) ndi mapaipi omwe amagwiritsidwa ntchito kwambiri pazida zopangira petrochemical.

（一）Seamless Carbon steel Pipe

Gawo lachitsulo chachitsulo:10#,20#,09 mv,16Mnmu mitundu 4

Zokhazikika:

GB8163 Seamless Steel Pipe ya Fluid Service

GB/T9711 Mafakitale amafuta ndi gasi - Chitoliro chachitsulo chamayendedwe amapaipi

GB6479 High-pressure zitsulo chitoliro cha zida feteleza "

GB9948 Machubu achitsulo osasunthika ophwanya mafuta

GB3087 Chitoliro chachitsulo chosasunthika cha boiler yotsika komanso yapakatikati

GB/T5310 Seamless zitsulo machubu ndi mapaipi kwa kukanika kukanika

GB/T8163: Kalasi ya Zitsulo Zakuthupi: 10 #, 20 #, Q345, etc.

Kuchuluka kwa ntchito: mafuta, mafuta ndi gasi ndi zofalitsa zapagulu zomwe kutentha kwapangidwe kumakhala kosakwana 350 ℃ ndi kupanikizika ndi zosakwana 10MPa.

GB6479: Zida zachitsulo Gulu: 10 #, 20G, 16Mn, etc.

Kuchuluka kwa ntchito: mafuta ndi gasi ndi kutentha kwapangidwe -40～400 ℃ ndi kuthamanga kwa mapangidwe 10.0～32.0MPa.

GB9948:

Zofunika zitsulo Gulu: 10 #, 20 #, etc.

Kuchuluka kwa ntchito: nthawi pomwe chitoliro chachitsulo cha GB/T8163 sichili choyenera.

GB3087:

Zofunika zitsulo Gulu: 10 #, 20 #, etc.

Kuchuluka kwa ntchito: nthunzi yotentha kwambiri ndi madzi otentha kwa ma boiler otsika komanso apakatikati.

GB5310:

Zida zitsulo Gulu: 20G etc.

Kuchuluka kwa ntchito: sing'anga yotentha yotentha kwambiri ya boiler yothamanga kwambiri

Kuyang'anira: Nthawi zambiri mapaipi achitsulo oyendetsa madzimadzi amayenera kuwunika momwe zinthu ziliri, kuyesa kwamphamvu, kuyesa kwa flattening ndi kuyesa kwa hydraulic. GB5310, GB6479, ndi GB9948 mipope zitsulo muyezo, kuwonjezera pa mayesero amene ayenera kuchitidwa pa mipope zitsulo zoyendera madzimadzi, mayeso flaring ndi mayesero zotsatira zimafunikanso; zofunikira zoyendera zopangira mapaipi atatu azitsulowa ndi okhwima. Muyezo wa GB6479 umapanganso zofunikira zapadera pakutentha kotsika kwazinthuzo. Kuphatikiza pazofunikira zonse zoyeserera zamapaipi achitsulo pamayendedwe amadzimadzi, mapaipi achitsulo amtundu wa GB3087 amafunikiranso mayeso opindika ozizira. GB/T8163 muyezo zitsulo mipope, kuwonjezera pa zofunika mayeso ambiri mipope zitsulo zoyendera madzimadzi, malinga ndi mgwirizano amafuna kukulitsa mayeso ndi ozizira kupinda mayeso. Zofunikira pakupanga mitundu iwiri ya machubu sizovuta monga mitundu itatu yoyambirira.

Kupanga: Mapaipi achitsulo a GB/T8163 ndi GB3087 nthawi zambiri amasungunuka m'malo otseguka kapena osinthira, ndipo zonyansa zawo ndi zolakwika zamkati ndizokulirapo. GB9948 nthawi zambiri imagwiritsa ntchito kusungunula ng'anjo yamagetsi. Ambiri a iwo alowa nawo ntchito yoyenga kunja kwa ng'anjo, ndipo mapangidwe ake ndi zolakwika zamkati ndizochepa. Miyezo ya GB6479 ndi GB5310 imafotokoza zofunikira pakuyenga kunja kwa ng'anjo, zokhala ndi zonyansa zochepa komanso zolakwika zamkati, komanso zinthu zapamwamba kwambiri.

Kusankhidwa: Kawirikawiri, chitoliro chachitsulo cha GB / T8163 ndi choyenera kwa mafuta, mafuta ndi gasi ndi zofalitsa zapagulu ndi kutentha kwapangidwe kosachepera 350 ° C ndi kupanikizika kosachepera 10.0MPa; kwa mafuta, mafuta ndi gasi, pamene kutentha kwapangidwe kumapitirira 350 ° C Kapena pamene kupanikizika kuli kwakukulu kuposa 10.0MPa, GB9948 kapena GB6479 mipope yachitsulo yoyenera kugwiritsidwa ntchito; kwa mapaipi ogwiritsidwa ntchito mu haidrojeni, kapena mapaipi omwe akugwira ntchito m'malo okonda dzimbiri, miyezo ya GB9948 kapena GB6479 iyeneranso kugwiritsidwa ntchito. Mapaipi onse achitsulo a kaboni omwe amagwiritsidwa ntchito potentha (osakwana -20 ° C) akuyenera kutengera muyezo wa GB6479, ndipo amangotchula zofunikira pakulimba kwa zinthuzo. Miyezo ya GB3087 ndi GB5310 ndi miyezo yokhazikitsidwa makamaka ya mapaipi achitsulo chowotchera. "Malamulo Oyang'anira Chitetezo cha Boiler" akugogomezera kuti mapaipi onse olumikizidwa ndi chowotchera ndi omwe amayang'aniridwa, ndipo kugwiritsa ntchito zida ndi miyezo kuyenera kutsata zofunikira za "Boiler Safety Supervision Regulations". Chifukwa chake, amagwiritsidwa ntchito mu boilers, malo opangira magetsi, zotenthetsera ndi malo opangira petrochemical. Mapaipi onse a anthu onse (operekedwa ndi dongosolo) akuyenera kutengera miyezo ya GB3087 kapena GB5310. Ndikoyenera kudziwa kuti mtengo wazitsulo zazitsulo zokhala ndi mipope yabwino yazitsulo ndizokwera kwambiri. Mwachitsanzo, mtengo wa GB9948 ndi pafupifupi 1/5 wokwera kuposa mtengo wa zinthu za GB8163. Choncho, posankha zitsulo chitoliro mfundo mfundo zakuthupi, mwatsatanetsatane kuyenera kuperekedwa kwa zikhalidwe ntchito, amene ayenera kukhala odalirika ndi Kukhala ndalama. Tiyeneranso kuzindikira kuti mapaipi achitsulo malinga ndi GB/T20801 ndi TSGD0001, GB3087 ndi GB8163 miyezo sidzagwiritsidwa ntchito pa mapaipi a GC1 (pokhapokha ngati mmodzi ndi mmodzi ali akupanga, khalidweli silotsika kuposa L2.5, ndipo likhoza kukhala yogwiritsidwa ntchito pa GC1 yokhala ndi kuthamanga kwa mapangidwe osapitilira 4.0Mpa).

(二)Chitoliro chochepa cha alloy chitoliro chopanda chitsulo

Pazida zopangira petrochemical, zitsulo zomwe zimagwiritsidwa ntchito kwambiri ndi chromium-molybdenum ndi chromium-molybdenum-vanadium zitsulo zopanda chitoliro ndi GB9948 "Chitoliro chopanda chitsulo chophwanyira mafuta" GB6479 "Chitoliro chachitsulo chosasunthika cha zida za feteleza" GB/T5310 "Seamless chitoliro chachitsulo cha boiler yothamanga kwambiri》GB9948 ili ndi zitsulo za chromium-molybdenum zitsulo: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo, ndi zina zotero. Chromium-molybdenum zitsulo zamtengo wapatali zomwe zikuphatikizidwa mu GB6479: 12CrMo, 15CrMo, 1Cr/T5Modenum 5Modeum 1 molybdenum molybdenum ndi zina zotero lybdenum vanadium chitsulo magiredi akuthupi: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, etc. Pakati pawo, yomwe imagwiritsidwa ntchito kwambiri ndi GB9948, onani pamwambapa pazosankha

（三）Chitoliro chosapanga dzimbiri chosasunthika

Nthawi zambiri amagwiritsidwa ntchito zitsulo zosapanga dzimbiri zosapanga dzimbiri zitsulo ndi:

Pali miyezo isanu: GB/T14976, GB13296, GB9948, GB6479, ndi GB5310. Pakati pawo, magiredi awiri kapena atatu okha azitsulo zosapanga dzimbiri ndizomwe zalembedwa m'miyezo itatu yomaliza, ndipo sizinthu zomwe zimagwiritsidwa ntchito kwambiri.

Choncho, pamene zitsulo zosapanga dzimbiri zitsulo zosapanga dzimbiri zitoliro zimagwiritsidwa ntchito mu uinjiniya, miyezo ya GB/T14976 ndi GB13296 imagwiritsidwa ntchito.

GB/T14976 "Chitsulo chosapanga dzimbiri chopanda chitoliro choyendetsa madzimadzi":

Maphunziro azinthu: 304, 304L ndi mitundu ina 19 ndi yoyenera mayendedwe ambiri amadzimadzi.

GB13296 "Machubu achitsulo chosapanga dzimbiri opanda machubu a ma boiler ndi osinthanitsa kutentha":

Maphunziro azinthu: 304, 304L ndi mitundu ina 25.

Pakati pawo, chitsulo chosapanga dzimbiri chotsika kwambiri (304L, 316L) chimakhala ndi kukana kwa dzimbiri. Pazifukwa zina, imatha kusintha chitsulo chosapanga dzimbiri chokhazikika (321, 347) kuti chiteteze kuwononga kwa media; Chitsulo chosapanga dzimbiri chotsika kwambiri cha mpweya chimakhala ndi makina otsika kwambiri, omwe amagwiritsidwa ntchito potentha pansi pa 525 ℃; chitsulo chosapanga dzimbiri cha austenitic chimakhala ndi kukana bwino kwa dzimbiri komanso kutentha kwamakina, koma Ti mu 321 ndi oxidized mosavuta komanso kutayika panthawi yowotcherera, motero kuchepetsa magwiridwe ake odana ndi dzimbiri, mtengo wake ndi wokwera, zinthu zamtunduwu zimagwiritsidwa ntchito kwambiri nthawi zofunika, 304, 316 ili ndi ntchito zambiri zotsutsana ndi dzimbiri, mtengo wake ndi wotsika mtengo, choncho umagwiritsidwa ntchito kwambiri.