Umzi-mveliso othengisa iTshayina ongenamthungo weFerritic alloy-Steel Pipe yeNkonzo yoBubushushu obuphezulu ASTM A335 P11
Isishwankathelo
Imivuzo yethu ziindleko eziphantsi, iqela leenzuzo eziguqukayo, iQC ekhethekileyo, iifektri ezinamandla, iinkonzo ezikumgangatho ophezulu kumbhobho wentsimbi yealloy kwibhoyila, Samkela ngokufudumeleyo bonke abathengi abanomdla ukuba baqhagamshelane nathi ngolwazi oluthe kratya. Silindele ukubonelela ngezisombululo kunye neenkonzo kubasebenzisi abaninzi kwintengiso yasemva kwehlabathi; siphehlelele iqhinga lethu le-arhente yehlabathi ngokubonelela ngeempahla zethu ezigqwesileyo kwihlabathi liphela ngenxa yamaqabane ethu adume kakuhle avumela abasebenzisi behlabathi ukuba bahambelane nokuveliswa kwetekhnoloji kunye nezinto esizizuzileyo kunye nathi.
Ngokubhekiselele kwitekhnoloji yokulawula ukunyibilikisa kwibhoyila yentsimbi, ukongeza kulwakhiwo lweekhemikhali ukubetha ithagethi, ikwafuna intsimbi yebhoyila ukuba ibe nobunyulu obuphezulu kunye nezinto ezinobungozi eziphantsi ze-S kunye ne-P, ngakumbi i-S element kufuneka ilawulwe ngokungqongqo, ngakumbi ngenxa yokuba I-element S ibangela i-crystal yasekuqaleni Into ephambili yokungcola eyenza buthathaka umda iyona nto iphambili ekhokelela kwi-creep embrittlement yentsimbi.
Isicelo
Isetyenziswa ikakhulu ukwenza umgangatho ophezulu wekhabhoni yentsimbi, intsimbi yesakhiwo sealloyi kunye nentsimbi engatyiwa ngumthungo yemibhobho yentsimbi engenamthungo yoxinzelelo oluphezulu nangaphezulu kwemibhobho yebhoyila yomphunga.
Isetyenziswa ikakhulu kuxinzelelo oluphezulu kunye nenkonzo yobushushu obuphezulu bebhoyila (ityhubhu yeheater, ityhubhu yokufudumeza, ityhubhu yesikhokelo somoya, ityhubhu ephambili yomphunga kwizibiyeli zoxinzelelo oluphezulu kunye noxinzelelo oluphezulu). Ngaphantsi kwesenzo segesi ephezulu yokushisa kunye nomphunga wamanzi, ityhubhu iya ku-oxidize kwaye idle. Kuyadingeka ukuba umbhobho wensimbi unokuqina okuphezulu, ukuchasana okuphezulu kwi-oxidation kunye nokugqwala, kunye nokuzinza okuhle kwesakhiwo.
IBanga eliPhambili
IBanga le-carbon high-quality steel structure: 20g, 20mng, 25mng
IBanga le-alloy yensimbi yesakhiwo: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, njl.
Ibakala lentsimbi ekwaziyo ukumelana nobushushu: 1cr18ni9 1cr18ni11nb
ICandelo leMichiza
| IBanga | Umgangatho Iklasi | Ipropati yeMichiza | ||||||||||||||
| C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
| 不大于 | 不小于 | |||||||||||||||
| Q345 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.30 | 0.50 | 0.20 | 0.012 | 0.10 | - | - | |||
| B | 0.035 | 0.035 | ||||||||||||||
| C | 0.030 | 0.030 | 0.07 | 0.15 | 0.20 | 0.015 | ||||||||||
| D | 0.18 | 0.030 | 0.025 | |||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q390 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.20 | 0.20 | 0.3 | 0.50 | 0.20 | 0.015 | 0.10 | - | - |
| B | 0.035 | 0.035 | ||||||||||||||
| C | 0.030 | 0.030 | 0,015 | |||||||||||||
| D | 0.030 | 0.025 | ||||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q42O | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.2 | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | - | - |
| B | 0.035 | 0.035 | ||||||||||||||
| C | 0.030 | 0.030 | 0.015 | |||||||||||||
| D | 0.030 | 0.025 | ||||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q46O | C | 0.20 | 0.60 | 1.80 | 0.030 | 0.030 | 0.11 | 0.20 | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
| D | 0.030 | 0.025 | ||||||||||||||
| E | 0.025 | 0.020 | ||||||||||||||
| Q500 | C | 0.18 | 0.60 | 1.80 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 0.60 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
| D | 0.025 | 0.015 | ||||||||||||||
| E | 0.020 | 0.010 | ||||||||||||||
| Q550 | C | 0.18 | 0.60 | 2.00 | 0.025 | 0,020 | 0.11 | 0.20 | 0.20 | 0.80 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
| D | 0.025 | 0,015 | ||||||||||||||
| E | 0.020 | 0.010 | ||||||||||||||
| Q62O | C | 0.18 | 0.60 | 2.00 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 1.00 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
| D | 0.025 | 0.015 | ||||||||||||||
| E | 0.020 | 0.010 | ||||||||||||||
| Ngaphandle kwamabakala e-Q345A kunye ne-Q345B, intsimbi kufuneka iqulethe ubuncinane enye yezinto eziziinkozo ezicocekileyo i-Al, Nb, V, kunye ne-Ti. Ngokweemfuno, umthengisi unokongeza enye okanye ngaphezulu kwezinto eziziinkozo eziphuculweyo, ixabiso eliphezulu Kufuneka lihlangabezane neemfuno kwitheyibhile. Xa zidityanisiwe, Nb + V + Ti <0.22% °Kumabanga e-Q345, Q390, Q420 kunye ne-Q46O, Mo + Cr <0.30% oXa ibakala ngalinye le-Cr kunye ne-Ni lisetyenziswa njengento eshiyekileyo, umxholo we-Cr no-Ni akufanelekanga ibe ngaphezu kwe-0.30%; xa kufuneka ifakwe, umxholo wayo kufuneka uhlangabezane neemfuno ezikwitheyibhile okanye ugqitywe ngumthengisi kunye nomthengi ngokubonisana.J Ukuba umthengisi unokuqinisekisa ukuba umxholo we-nitrogen uhlangabezana neemfuno ezikwitheyibhile, uhlalutyo lomxholo we-nitrogen ayinakwenziwa. Ukuba i-Al, i-Nb, i-V, i-Ti kunye nezinye izinto ze-alloy kunye nokulungiswa kwe-nitrogen zongezwa kwintsimbi, umxholo we-nitrogen awukhawulelwanga. Umxholo wokulungiswa kwenitrogen kufuneka ucaciswe kwisiqinisekiso somgangatho. 'Xa usebenzisa yonke i-aluminiyam, umxholo we-aluminiyam iyonke AIt ^ 0.020% B | ||||||||||||||||
IPropati yoomatshini
| No | IBanga | IPropati yoomatshini | ||||
|
|
| Ukuqina | Yima kancinci | Yandisa | Impembelelo (J) | Isandla |
| 1 | 20G | 410- | ≥ | 24/22% | 40/27 | - |
| 2 | 20MnG | 415- | ≥ | 22/20% | 40/27 | - |
| 3 | 25MnG | 485- | ≥ | 20/18% | 40/27 | - |
| 4 | 15MoG | 450- | ≥ | 22/20% | 40/27 | - |
| 6 | 12CrMoG | 410- | ≥ | 21/19% | 40/27 | - |
| 7 | 15CrMoG | 440- | ≥ | 21/19% | 40/27 | - |
| 8 | 12Cr2MoG | 450- | ≥ | 22/20% | 40/27 | - |
| 9 | 12Cr1MoVG | 470- | ≥ | 21/19% | 40/27 | - |
| 10 | 12Cr2MoWVTiB | 540- | ≥ | 18/-% | 40/- | - |
| 11 | 10Cr9Mo1VNbN | ≥ | ≥ | 20/16% | 40/27 | ≤ |
| 12 | 10Cr9MoW2VNbBN | ≥ | ≥ | 20/16% | 40/27 | ≤ |
Ukunyamezelana
Ukutyeba kweendonga kunye neDayimitha yaNgaphandle:
Ukuba akukho mfuneko zikhethekileyo, umbhobho uya kuhanjiswa njengedayamitha yangaphandle eqhelekileyo kunye nobukhulu bodonga oluqhelekileyo. Njengephepha elilandelayo
| Ukutyunjwa kokuhlelwa | Indlela yokwenziwa | Ubungakanani bombhobho | Ukunyamezelana | |||
| Ibanga eliqhelekileyo | Ibanga eliphezulu | |||||
| WH | Umbhobho oshushu (extrude) | Idayamitha yangaphandle eqhelekileyo (D) | <57 | Umhla 0.40 | ±0,30 | |
| 57 〜325 | SW35 | ±0.75%D | ±0.5%D | |||
| S>35 | ±1%D | ±0.75%D | ||||
| >325 ukuya ku6. | + 1%D okanye + 5.Thatha enye encinane一2 | |||||
| > 600 | + 1%D okanye + 7,Thatha engaphantsi kwe2 | |||||
| Ukutyeba kodonga oluqhelekileyo (S) | <4.0 | ±|・丨） | ±0.35 | |||
| >4.0-20 | + 12,5%S | ±10%S | ||||
| >20 | DV219 | ±10%S | ±7.5%S | |||
| 心219 | + 12.5%S -10%S | 土10%S | ||||
| WH | Umbhobho wokwandisa i-Thermal | Idayamitha yangaphandle eqhelekileyo (D) | zonke | ±1%D | ±0.75%. |
| Ukutyeba kodonga oluqhelekileyo (S) | zonke | + 20%S -10%S | + 15%S -io%s | ||
| i-WC | Kuyabanda (kuqengqiwe) Umbhobho | Idayamitha yangaphandle eqhelekileyo (D) | <25.4 | ±'L1j | - |
| >25.4 〜4() | ±0.20 | ||||
| > 40 〜50 | |:0.25 | - | |||
| >50〜60 | ±0.30 | ||||
| >60 | ±0.5%D | ||||
| Ukutyeba kodonga oluqhelekileyo (S) | <3.0 | ±0.3 | ±0.2 | ||
| >3.0 | S | ±7.5%S |
Ubude:
Ubude obuqhelekileyo bemibhobho yentsimbi yi-4 000 mm ~ 12 000 mm. Emva kokubonisana phakathi komthengisi kunye nomthengi, kwaye ugcwalise isivumelwano, inokuhanjiswa imibhobho yentsimbi kunye nobude obungaphezu kwe-12 000 mm okanye mfutshane kune-I 000 mm kodwa ingabi mfutshane kune-3 000 mm; ubude obufutshane Inani lemibhobho yentsimbi engaphantsi kwe-4,000 mm kodwa ingabi ngaphantsi kwe-3,000 mm ayisayi kudlula i-5% yenani lilonke lemibhobho yentsimbi ehanjiswayo.
Ubunzima bokuhanjiswa:
Xa umbhobho wensimbi uhanjiswa ngokomlinganiselo wangaphandle wegama kunye nobukhulu bodonga olubizwa ngokuba yi-nominal yangaphakathi kunye nobukhulu bodonga, umbhobho wensimbi uhanjiswa ngokobunzima bangempela. Isenokuhanjiswa ngokobunzima bethiyori.
Xa umbhobho wensimbi uhanjiswa ngokomlinganiselo wangaphandle wegama kunye nobukhulu obuncinci bodonga, umbhobho wensimbi uhanjiswa ngokwesisindo sangempela; amaqela obonelelo kunye nebango ayathethathethana. Kwaye kubonisiwe kwikhontrakthi. Umbhobho wensimbi unokuhanjiswa ngokobunzima bethiyori.
Ukunyamezela ubunzima:
Ngokweemfuno zomthengi, emva kokubonisana phakathi komthengisi kunye nomthengi, kunye nekhontrakthi, ukutenxa phakathi kobunzima bokwenene kunye nobunzima bethiyori yombhobho wentsimbi yokuhanjiswa kuya kuhlangabezana nezi mfuno zilandelayo:
a) Umbhobho wentsimbi enye: ± 10%;
b) Ibhetshi nganye yemibhobho yentsimbi enobungakanani obuncinane be-10 t: ± 7.5%.
Imfuneko yoVavanyo
Uvavanyo lweHydraustatic:
Umbhobho wentsimbi kufuneka uvavanywe nge-hydraulically nganye nganye. Uxinzelelo oluphezulu lovavanyo luyi-20 MPa. Ngaphantsi koxinzelelo lovavanyo, ixesha lokuzinzisa kufuneka lingabi ngaphantsi kwe-10 s, kwaye umbhobho wensimbi akufanele uvuze.
Emva kokuba umsebenzisi evumile, uvavanyo lwe-hydraulic lunokutshintshwa ngovavanyo lwangoku lwe-eddy okanye uvavanyo lokuvuza kwemagnethi.
Uvavanyo olungonakaliyo:
Imibhobho efuna ukuhlolwa okungakumbi kufuneka ihlolwe nge-ultrasonically nganye. Emva kokuba uthethathethwano lufuna imvume yeqela kwaye luchazwe kwikhontrakthi, olunye uvavanyo olungonakalisi lungongezwa.
Uvavanyo lokucaba:
Iityhubhu ezinobukhulu obungaphandle obungaphezulu kwe-22 mm ziya kufakwa kuvavanyo lokucaba. Akukho delamination ebonakalayo, amabala amhlophe, okanye ukungcola kufuneka kwenzeke ngexesha lonke uvavanyo.
Uvavanyo lokuvutha:
Ngokweemfuno zomthengi kwaye zichazwe kwikhontrakthi, umbhobho wensimbi kunye nobubanzi obungaphandle ≤76mm kunye nobukhulu bodonga ≤8mm lunokwenziwa uvavanyo lokuvutha . Uvavanyo lwenziwa kwiqondo lobushushu begumbi kunye ne-taper ye-60 °. Emva kokuvutha, isantya sokuvutha kobubanzi bangaphandle kufuneka sihlangabezane neemfuno zetafile elandelayo, kwaye izinto zokuvavanya akufanele zibonise ukuqhekeka okanye ukukrazula.
| Uhlobo lwentsimbi
| Umyinge wokuvutha wedayamitha yangaphandle yombhobho wentsimbi/% | ||
| I-Diameter yangaphakathi / i-Outer Diameter | |||
| <0.6 | >0.6 〜0.8 | >0.8 | |
| Umgangatho ophezulu we-carbon structural steel | 10 | 12 | 17 |
| Intsimbi ye-alloy yesakhiwo | 8 | 10 | 15 |
| •Idayimitha yangaphakathi ibalwa kwisampulu. | |||
Iinkcukacha zeMveliso
Imibhobho yentsimbi engenamthungo yeeBoiler zoxinzelelo oluphezulu
GB/T5310-2017
ASME SA-106/SA-106M-2015
I-ASTMA210(A210M)-2012
ASME SA-213/SA-213M
