Uxinzelelo oluphezulu olungenamthungo lwebhoyila yombhobho we-oyile kunye nombhobho werhasi
Umbhobho webhoyila woxinzelelo oluphezulu luhlobo lwetyhubhu yebhoyila, yodidi lwetyhubhu yentsimbi engenamthungo.Indlela yokuvelisa iyafana nombhobho ongenamthungo, kodwa kukho iimfuno ezingqongqo kuhlobo lwentsimbi esetyenziselwa ukwenza umbhobho wensimbi.Ityhubhu yebhoyila yoxinzelelo oluphezulu ihlala isetyenziswa kubushushu obuphezulu kunye neemeko zoxinzelelo oluphezulu, ityhubhu yebhoyila yoxinzelelo oluphezulu isetyenziselwa ukwenza uxinzelelo oluphezulu kunye netyhubhu ephezulu yoxinzelelo oluphezulu lwebhoyila, ityhubhu yokufudumeza, umbhobho, umbhobho ophambili kunye nokunye.
Ityhubhu yebhoyila yoxinzelelo oluphantsi naphakathi GB3087-2008, ityhubhu yebhoyila yoxinzelelo oluphezulu GB5310-2008 isetyenziselwa ukwenza zonke iintlobo zesakhiwo soxinzelelo oluphantsi lwebhoyila ityhubhu yomphunga, ityhubhu yamanzi abilayo kunye nebhoyila enomphunga oshushu, ityhubhu enkulu yomsi, ityhubhu encinci yomsi. kunye nombhobho we-arch wezitena umbhobho womgangatho ophezulu wekhabhoni wolwakhiwo lwentsimbi eshushu eqengqelekayo kunye nebandayo ezotyiweyo (eqengqelekayo) ityhubhu yentsimbi engenamthungo.Umbhobho wensimbi ongenamthungo wesakhiwo (i-GB / T8162-2008) isetyenziselwa isakhiwo esiqhelekileyo kunye nesakhiwo somatshini wombhobho wensimbi ongenamthungo.
Iinkcukacha kunye nomgangatho wenkangeleko: GB5310-2008 "I-tube yentsimbi engenamthungo kwibhoyila yoxinzelelo oluphezulu" umbhobho oshushu waqengqeleka ububanzi 22 ~ 530mm, ubukhulu bodonga 20 ~ 70mm.Ukutsalwa okubandayo (okubandayo okuqengqelekayo) ityhubhu ububanzi 10 ~ 108mm, ubukhulu bodonga 2.0 ~ 13.0mm.
Umbhobho okhethekileyo wentsimbi engenamthungo ligama eliqhelekileyo lombhobho wentsimbi ongenamthungo kunye nezinye iimilo zecandelo lomnqamlezo ngaphandle kombhobho ojikelezayo.Ngokwemilo eyahlukeneyo kunye nobukhulu becandelo lombhobho wentsimbi, lunokwahlulwa lube ngumbhobho olinganayo wodonga olulinganayo olunemilo ekhethekileyo yentsimbi engenamthungo (ikhowudi D), ubukhulu bodonga olungalinganiyo olumilise okwentsimbi yombhobho (ikhowudi BD), ububanzi obuguquguqukayo obukhethekileyo- umbhobho wentsimbi emile ingenamthungo (ikhowudi BJ).Iityhubhu zentsimbi ezimilise okwexeshana ezikhethekileyo zisetyenziswa ngokubanzi kwiindawo ezahlukeneyo zokwakha, izixhobo kunye neenxalenye zoomatshini.Xa kuthelekiswa netyhubhu ejikelezileyo, ityhubhu emile ngokuqhelekileyo inomzuzu omkhulu we-inertia kunye ne-modulus yecandelo, inokugoba okukhulu kunye nokuxhathisa kwe-torsion, inokunciphisa kakhulu ubunzima besakhiwo, gcina intsimbi.
Umbhobho oPhakamileyo ongenamthungo, uBume beMichiza
(1)GB3087-2008 "Ipayipi yentsimbi engenamthungo kwibhoyila yoxinzelelo oluphantsi kunye noxinzelelo oluphakathi".Indlela yokuvavanya ukubunjwa kweekhemikhali ngokwe-gb222-84 kunye ne-GB223 "Iindlela zokuHlalutya kweekhemikhali zeNsimbi kunye ne-Alloy" inxalenye efanelekileyo.
(2)GB5310-2008 "I-Seamless Steel Tube kwibhoyili yoxinzelelo oluphezulu" amalungiselelo.Indlela yokuvavanya ukubunjwa kweekhemikhali ngokwe-GB222-84 kunye "neNdlela yokuHlalutya kweMichiza ye-Iron kunye neNsimbi kunye ne-alloy", i-GB223 "Indlela yokuhlalutya kweekhemikhali ze-Iron kunye neNsimbi kunye ne-Alloy".
(3) Ukuhlolwa kokwakheka kweekhemikhali kumbhobho wensimbi yebhoyila ephuma kumazwe angaphandle kuya kwenziwa ngokwemigangatho efanelekileyo echazwe kwisivumelwano.
Ukuqulunqwa kweMichizaUxinzelelo oluPhezulu lombhobho ongenamthungo, iBanga leNsimbi
(1) Umgangatho ophezulu we-carbon structural steel steel 20G, 20MnG, 25MnG.
(2) I-alloy structure steel 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, njl.
(3) Umhlwa intsimbi ukumelana nobushushu ngokuqhelekileyo kusetyenziswa 1Cr18Ni9, 1Cr18Ni11Nb ityhubhu kwibhoyila ukongeza ukuqinisekisa ukwakheka imichiza kunye neempawu mechanical, ukwenza uvavanyo loxinzelelo lwamanzi, ukwenza ukuvutha, uvavanyo compression.Iityhubhu zentsimbi zihanjiswa kwimeko yonyango lokushisa.
Ukongeza, i-microstructure, ubungakanani beengqolowa kunye ne-decarburization layer yeetyhubhu zetsimbi ezigqityiweyo nazo ziyafuneka.
Umbhobho woxinzelelo oluphezulu olungenamthungo, iiPropati zoMzimba ze
(1) I-GB3087-82 "I-tube yensimbi engenamthungo kwibhoyili ephantsi kunye nephakathi" izibonelelo.Uvavanyo lwe-tensile ngokwe-GB/T228-87, uvavanyo lwe-hydraulic ngokwe-GB/T241-90, uvavanyo oluthe tyaba ngokwe-GB/T246-97, uvavanyo lwe-flaring ngokwe-GB/T242-97, uvavanyo lokugoba olubandayo ngokwe-GB244-97.
(2) I-GB5310-95 "I-tube yensimbi engenamthungo kwibhoyili yoxinzelelo oluphezulu" amalungiselelo.Uvavanyo loxinzelelo, uvavanyo loxinzelelo lwamanzi kunye novavanyo lokuthambisa luyafana ne-gb3087-82;Uvavanyo lwempembelelo ngokwe-GB229-94, uvavanyo lokuvutha ngokwe-GB/T242-97, uvavanyo lobungakanani benkozo ngokweYB/T5148-93;Ngokutsho kwe-GB13298-91 yokuhlolwa kwe-microstructure, i-GB224-87 yokuhlolwa kwe-decarburization layer kunye ne-GB/T5777-96 yokuhlolwa kwe-ultrasonic.
(3) Ukuhlolwa kwezinto ezibonakalayo kunye nezibonakaliso zeetyhubhu zebhoyila ezithunyelwa ngaphandle ziya kwenziwa ngokwemigangatho efanelekileyo echazwe kwikhontrakthi.
Umbhobho oPhakamileyo ongenamthungo, Iindlela zoMveliso
Umbhobho ongenamthungo woxinzelelo oluphezulu，Ngaba luhlobo lwetyhubhu engenamthungo.Indlela yokuvelisa iyafana nombhobho ongenamthungo, kodwa kukho iimfuno ezingqongqo kuhlobo lwentsimbi esetyenziselwa ukwenza umbhobho wensimbi.Ngokutsho ukusetyenziswa lobushushu yahlulwe zibe ziindidi ezimbini kwibhoyila ityhubhu jikelele kunye noxinzelelo oluphezulu kwibhoyila ityhubhu.
① Umbhobho ongenamthungo ophakamileyo woxinzelelo, Xa ubushushu bokusebenza bungaphantsi kwama-450 ℃, umbhobho wasekhaya wenziwa ikakhulu nge-no.10 kunye neNo.
② Uxinzelelo oluphezulu umbhobho ongenamthungo，Xa usetyenziswa, umbhobho uhlala uphantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu.Ngaphantsi kwesenzo segesi ephezulu yokushisa kunye nomphunga wamanzi, i-oxidation kunye ne-corrosion iya kwenzeka.Umbhobho wensimbi ufuneka ukuba ube namandla ahlala ixesha elide, ukuxhatshazwa kwe-corrosion ephezulu ye-oxidation kunye nokuzinza okulungileyo kwe-microstructure.
| Umgangatho | Ibakala lentsimbi | Ukwakheka kweekhemikhali (%) | |||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | AL | W | Nb | N | ||
| ASME SA106 | SA106B | 0.17 ~0.25 | ≥0.1 | 0.7 ~1.0 | ≤0.03 | ≤0.03 | |||||||||
| SA106C | 0.23 ~0.27 | ≥0.1 | 0.7 ~1.0 | ≤0.03 | ≤0.03 | ||||||||||
| ASME SA333 | SA333I | 0.09 ~0.12 | / | 0.7 ~1.0 | ≤0.02 | ≤0.01 | |||||||||
| SA333II | 0.09 ~0.12 | ≥0.1 | 0.9~ 1.1 | ≤0.02 | ≤0.01 | ||||||||||
| ASME A335 | SA335P11 | 0.05 ~0.15 | 0.5 ~1.0 | 0.3 ~0.6 | ≤0.03 | ≤0.03 | 1.0 ~1.5 | 0.5 ~1.0 | |||||||
| SA335P12 | 0.05 ~0.15 | ≤0.5 | 0.3~ 0.6 | ≤0.03 | ≤0.03 | 0.8 ~1.25 | 0.44 ~0.65 | ||||||||
| SA335P22 | 0.05 ~0.15 | ≤0.5 | 0.3~ 0.6 | ≤0.03 | ≤0.03 | 1.9 ~2.6 | 0.87 ~1.13 | ||||||||
| SA335P5 | ≤0.15 | ≤0.5 | 0.3~ 0.6 | ≤0.03 | ≤0.03 | 4.0 ~6.0 | 0.45 ~0.65 | ||||||||
| SA335P91 | 0.08 ~0.12 | 0.2 ~0.5 | 0.3~ 0.6 | ≤0.02 | ≤0.01 | 8.0 ~9.5 | 0.85 ~1.05 | ≤0.4 | 0.18 ~0.25 | ≤0.015 | 0.06 ~0.1 | 0.03 ~0.07 | |||
| SA335P92 | 0.07 ~0.13 | ≤0.5 | 0.3~ 0.6 | ≤0.02 | ≤0.01 | 8.5 ~9.5 | 0.3~ 0.6 | B0.001 0.006 | ≤0.4 | 0.15 ~0.25 | ≤0.015 | 1.5 ~2.0 | 0.04 ~0.09 | 0.03 ~0.07 | |
| I-DIN 17175 | ST45.8III | ≤0.21 | 0.1 ~0.35 | 0.4 ~1.2 | ≤0.04 | ≤0.04 | ≤0.3 | ||||||||
| 15Mo3 | 0.12 ~0.2 | 0.1 ~0.35 | 0.4 ~0.8 | ≤0.035 | ≤0.035 | 0.25 ~0.35 | |||||||||
| 13CrMo44 | 0.1 ~0.18 | 0.1 ~0.35 | 0.4 ~0.7 | ≤0.035 | ≤0.035 | 0.7 ~1.1 | 0.45 ~0.65 | ||||||||
| 10CrMo910 | 0.08 ~0.15 | ≤0.5 | 0.3 ~0.7 | ≤0.025 | ≤0.02 | 2.0 ~2.5 | 0.9 ~1.1 | ≤ 0.3 | ≤0.3 | ≤0.015 | 0.015 ~0.045 | ||||
| EN10216 -2 | WB36 | ≤0.17 | 0.25 ~0.5 | 0.8 ~1.2 | ≤0.025 | ≤0.02 | ≤0.3 | 0.25 ~0.5 | 0.5 ~0.8 | 1.0 ~1.3 | ≤0.015 | ||||
Umboniso weMveliso
