Iityhubhu zetsimbi kunye nemibhobho zisetyenziselwa izindlu zebhoyila kunye nokutshintsha ubushushu
Iityhubhu zentsimbi yebhoyila kunye nemibhobho, Ibhekisa kwiziphelo ezimbini zecandelo lokuvula kunye nelomngxuma, ubude bayo kunye nomda wentsimbi enkulu, ngokwendlela yemveliso inokwahlulwa ibe yityhubhu yentsimbi engenamthungo kunye netyhubhu yentsimbi edityanisiweyo. imilinganiselo (efana nobubanzi obungaphandle okanye ubude becala) kunye nobukhulu bodonga, uluhlu lwalo lobungakanani lubanzi kakhulu, ukusuka kububanzi obuncinci betyhubhu ye-capillary ukuya kububanzi beemitha ezimbalwa zombhobho omkhulu wecaliber.Iityhubhu zentsimbi zingasetyenziselwa imibhobho, izixhobo ezishushu, ishishini loomatshini, ukuhlola i-petroleum geological, izitya, ishishini lemichiza kunye neenjongo ezikhethekileyo.
Iityhubhu zentsimbi yebhoyila kunye nemibhobho, Umbhobho wentsimbi owahlulwe ngokungenamthungo kunye nombhobho wentsimbi odityanisiweyo (umbhobho womthungo) iindidi ezimbini.Ngokwemilo yecandelo inokohlulwa ibe ityhubhu engqukuva kunye ne-tube ekhethekileyo, isetyenziswa ngokubanzi ityhubhu yentsimbi ejikelezayo, kodwa kukho izikwere ezimbalwa, uxande, i-semicircle, i-hexagonal, i-equilateral unxantathu, i-octagonal ekhethekileyo ityhubhu yentsimbi.Kuba umbhobho wentsimbi phantsi koxinzelelo lwe-fluid ukuphumeza uvavanyo lwe-hydraulic ukuvavanya amandla oxinzelelo kunye nomgangatho, phantsi koxinzelelo oluchaziweyo aluvuzi, lumanzi okanye lwandiso lwabaqeqeshiweyo, omnye umbhobho wentsimbi ngokwemigangatho okanye iimfuno zovavanyo lwecala, ukuvutha. uvavanyo, uvavanyo olucaba.
Imibhobho ye-Boiler Steel kunye neMibhobho, iindlela zokuvelisa
Iityhubhu zensimbi ze-boiler kunye nemibhobho, 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.
Iibhobho zensimbi ze-boiler kunye nemibhobho, ipropati yomatshini isalathiso esibalulekileyo sokuqinisekisa ukusetyenzwa kokugqibela kwentsimbi.Kuxhomekeke kwimichiza yentsimbi kunye nenkqubo yonyango lokushisa.Kwinqanaba lombhobho wensimbi, ngokweemfuno ezahlukeneyo zokusetyenziswa, kuchazwe iimpawu zokuqina (amandla okuqina, amandla emveliso okanye indawo yesivuno, ukunyusa) kunye nobunzima, izikhombisi zokuqina, kunye neemfuno zomsebenzisi zokusebenza okuphezulu kunye nokuphantsi kobushushu.
① Ubushushu betyhubhu yebhoyila ngokubanzi bungaphantsi kwe-350℃, umbhobho wasekhaya wenziwa ikakhulu kwiNombolo ye-10, akukho.I-20 yentsimbi yekhabhoni eshushu iqengqeleke umbhobho okanye umbhobho ozotyiweyo obandayo.
② Iityhubhu zebhoyila ezinoxinzelelo oluphezulu zihlala zisetyenziswa phantsi kobushushu obuphezulu kunye neemeko zoxinzelelo oluphezulu.Ngaphantsi kwesenzo segesi ephezulu yokushisa kunye nomphunga wamanzi, i-oxidation kunye ne-corrosion iya kwenzeka.Umbhobho wentsimbi uyafuneka ukuba ube namandla ahlala ixesha elide, ukumelana ne-oxidation ephezulu ye-corrosion kunye nokuzinza okulungileyo kwe-microstructure.
Iibhubhu zeBoiler Steel kunye neMibhobho, Sebenzisa
(1) Ityhubhu yebhoyila ngokubanzi isetyenziselwa ukwenza ityhubhu yodonga lwamanzi, ityhubhu yamanzi abilayo, ityhubhu yomphunga eshushu kakhulu, ityhubhu yebhoyila eshushu kakhulu, umbhobho womsi omkhulu kunye omncinci kunye nombhobho wezitena we-arch.
(2) ityhubhu yebhoyila yoxinzelelo oluphezulu isetyenziswa ikakhulu ukwenza ityhubhu yesifudumezi, ityhubhu yokufudumeza, umbhobho, umbhobho oyintloko womphunga, njl. njl. Ubonelelo kunye nemfuno yendlela yoshishino lwebhoyila yoxinzelelo oluphezulu luzinzile, kodwa unikezelo kunye nemfuno yemeko nganye. icandelo elithile elingaphantsi liya kwahlulwa ngakumbi.Abangaphakathi kwishishini babonisa ukuba ikhonkco elibaluleke kakhulu kukusetyenziswa kunye nokukhuthazwa kwe-20g yezixhobo zebhoyila zoxinzelelo oluphezulu ukwenzela ukugcina ubushushu obutsha.
Iimveliso zetyhubhu yebhoyila entsha yoxinzelelo oluphezulu lwe-20g zikhula ngokuthe ngcembe emarikeni, njengepeyinti yokhuselo lokusingqongileyo, ukonga umbane kunye nemveliso yegumbi lokuhlambela, ilitye lokusingqongileyo, ibhodi yokugquma i-samente, ukonga amandla kunye iimveliso zokusingqongileyo kwimarike ebanzi ye-20g kushishino lwebhoyila yoxinzelelo oluphezulu luyathembisa.[1]
Izibonelelo ezifanelekileyo
(1) GB/T5310-2008 "Iibhubhu zeNsimbi ezingenamthungo kwiiBoilers zoxinzelelo oluphezulu".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".
(2) Ukuhlolwa kokwakheka kweekhemikhali kumbhobho wensimbi webhoyila ongeniswa kumazwe angaphandle kuya kwenziwa ngokwemigangatho efanelekileyo echazwe kwisivumelwano.
Iityhubhu zeBoiler Steel kunye neMibhobho, 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
Iityhubhu zeBoiler Steel kunye neMibhobho, iiPropati zePhysical of
(1) I-GB3087-2008 "I-Seamless Steel pipe ye-Boiler yoxinzelelo oluphantsi kunye noxinzelelo oluphakathi" amalungiselelo.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) GB5310-2008 "I-Seamless Steel Tube 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.
Iityhubhu zeBoiler Steel kunye neMibhobho, iiPropati zoomatshini ze
Tensile strength
Kwinkqubo yokuqina, awona mandla aphezulu (Fb) wesampulu ekuqhekekeni athathwe kuxinzelelo (σ) lwendawo yokuqala enqamlezileyo (Ngoko) yomfanekiso, obizwa ngokuba ngamandla okuqina (σb), achazwe N/mm2 (MPa).Imele umthamo omkhulu wezinto zetsimbi ukuxhathisa umonakalo phantsi koxinzelelo.Ifomula yokubala yile:
Apho: Fb-- awona mandla aphezulu athwalwa ngumzekelo xa wophuka, N (Newton);Ngoko-- Indawo enqamlezileyo yoqobo yesampulu, mm2.
Inqaku lesivuno
Izinto zetsimbi kunye nesiganeko sokuvunwa, i-specimen kwinkqubo yamandla e-tensile ayinyuki (gcina isigxina) inokuqhubeka nokwandisa uxinzelelo, olubizwa ngokuba yi-isivuno point.Kwimeko yokuncipha kwamandla, amanqaku aphezulu kunye nasezantsi kufuneka ahlulwe.Iyunithi yenqaku lesivuno yi-N/mm2 (MPa).
Inqaku eliphezulu lesivuno (σ SU) lolona xinzelelo luphezulu phambi kokuba i-specimen ivelise kwaye amandla ehla okokuqala.Inqaku lesivuno esisezantsi (σ SL) : ubuncinci boxinzelelo kwisigaba sokuvelisa xa umphumo wokuqala wexeshana ungaqwalaselwa.
Inqaku lesivuno lingabalwa ngolu hlobo:
Apho i-Fs ingamandla emveliso (ngaguquguqukiyo) yomzekelo ngexesha lenkqubo yokuqina, i-N (Newton) Ngokunjalo indawo yokuqala enqamlezileyo yomzekelo, mm2
Iibhobho zeBoiler Steel kunye neMibhobho, Ukwandiswa emva kokuphuka
Kuvavanyo lwe-tensile, ipesenteji yobude inyuswe ngomgama oqhelekileyo emva kokuba umfuziselo utsaliwe kwaye ubude bomgama osemgangathweni oqhelekileyo ubizwa ngokuba ngubude.Iyunithi yi%.Ifomula yokubala yile:
Apho: L1-- umgama wesampulu emva kokwaphulwa, mm;L0-- Ubude bomgama woqobo wesampulu, mm.
Ukuncitshiswa kwecandelo
Kuvavanyo lwe-tensile, ipesenteji yokunciphisa ubuninzi bendawo enqamlezileyo kwidayimitha encitshisiweyo yesampula emva kokutsalwa kunye nommandla onqamlezileyo wangaphambili ubizwa ngokuba yinqanaba lokunciphisa indawo.ψ ibonakaliswe nge-%.Ifomula yokubala imi ngolu hlobo lulandelayo:
Apho, S0-- indawo yokuqala enqamlezileyo yesampulu, mm2;S1-- Ubuncinci bendawo enqamlezileyo kwidayamitha encitshisiweyo yesampulu emva kokuqhekeka, mm2.
Ukuqina kwesalathiso
Ukuqina bubuchule besixhobo sentsimbi ukumelana nezinto eziqinileyo ezicinezela phezulu.Ngokwendlela yovavanyo kunye nobubanzi besicelo, ubulukhuni bunokwahlulwa bubulukhuni beBrinell, ukuqina kweRockwell, ukuqina kweVickers, ukuqina konxweme, ubulukhuni obuncinci kunye nobunzima obuphezulu bobushushu.Iqhele ukusetyenziswa kumbhobho izinto brinell, rockwell, Vickers ubulukhuni 3 iintlobo.
A, Ukuqina kweBrinell (HB)
Ibhola yensimbi okanye ibhola ye-carbide yobubanzi obuthile icinezelwe kwisampulu yesampula kunye novavanyo olucacisiweyo lwamandla (F), kwaye amandla okuvavanya asuswe emva kwexesha elichaziweyo lokubamba ukulinganisa i-diameter ye-indentation (L) kwindawo yesampula.Inombolo yobulukhuni be-Brinell yi-quotient yamandla ovavanyo olwahlulwe ngumphezulu we-indentation sphere.Icaciswe kwi-HBS, iyunithi yi-N/mm2 (MPa).
Iibhubhu ze-Boiler Steel kunye neMibhobho, uMgangatho kunye noHlolo
Iinkcukacha kunye neNkangeleko
(1) I-GB3087-2008 "I-Seamless Steel pipe ye-Boiler yoxinzelelo oluphantsi kunye noxinzelelo oluphakathi" amalungiselelo.Ukucaciswa kweetyhubhu zentsimbi kwiibhoyila ezahlukeneyo zesakhiwo, ububanzi be-10 ~ 426mm, iindidi ezingama-43 zizonke.Kukho iindidi ezingama-29 zobukhulu bodonga ukusuka kwi-1.5 mm ukuya kwi-26mm.Nangona kunjalo, ububanzi bangaphandle kunye nobukhulu bodonga lombhobho womphunga oshushu kakhulu, umbhobho omkhulu womsi, umbhobho omncinci womsi kunye nombhobho we-arch wezitena osetyenziswa kwibhoyila ye-locomotive ichazwe ngenye indlela.
(2) GB5310-2008 "I-Tube yentsimbi engenamthungo yeBoiler yoxinzelelo oluphezulu" ibhobho eshushu yaqengqeleka ububanzi 22 ~ 530mm, ubukhulu bodonga 20 ~ 70mm.Ukutsalwa okubandayo (okubandayo okuqengqelekayo) ityhubhu ububanzi 10 ~ 108mm, ubukhulu bodonga 2.0 ~ 13.0mm.
(3) I-GB3087-2008 "ityhubhu yentsimbi engenamthungo kwibhoyila ephantsi kunye nephakathi" kunye ne-GB5310-95 "ityhubhu yensimbi engenamthungo kwibhoyili yoxinzelelo oluphezulu" amalungiselelo.Umgangatho wokubonakala: ukuqhekeka, ukugoqa, ukuqengqeleka, ukukrala, ukuhlukana kunye nemibimbi akuvumelekanga kwindawo yangaphakathi nangaphandle yombhobho wensimbi.Ezi ziphene kufuneka zipheliswe ngokupheleleyo.Ubunzulu bococeko abuyi kudlula ukutenxa okungalunganga kobunzima bodonga lwegama, kwaye ubungakanani bodonga lokwenene kwindawo yokucoca abuyi kuba ngaphantsi kobungqingqwa obuvumelekileyo bodonga.[2]
Uvavanyo lwekhemikhali
(1) I-GB3087-2008 "I-Seamless Steel pipe ye-Boiler yoxinzelelo oluphantsi kunye noxinzelelo oluphakathi" amalungiselelo.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 webhoyila ongeniswa kumazwe angaphandle kuya kwenziwa ngokwemigangatho efanelekileyo echazwe kwisivumelwano.
Imveliso | imibhobho yensimbi yebhoyila kunye nemibhobho | |
Umbhobho ongenamthungo | eTshayina | GB/T8162/T8163 GB5310/6579/9948 |
i-USA | I-ASTM A53/A106/A178/A179/A192/A210/A213/A333/A335/A283/A135/A214/315/A500/A501/A519/A161/A334;API 5L/5CT | |
Japhan | JIS G3452/G3454/G3456/G3457/G3458/G3460/3461/3462/3464 | |
IsiJamani | DIN 1626/17175/1629-4/2448/2391/17200 SEW680 | |
Rhashiya | GOST 8732/8731/3183 | |
Izinto eziphathekayo kunye neBanga | eTshayina | 10#, 20#, 16Mn, 20G, 15MoG, 15CrMo, 30CrMo, 42Crmo, 27SiMn, 20CrMo |
i-USA | Gr.B/Gr.A/A179/A192/A-1/T11/T12/T22/P1/FP1/T5/4140/4130 | |
Japhan | STPG38,STB30,STS38,STB33,STB42,STS49,STBA23,STPA25,STPA23 | |
IsiJamani | ST33,ST37,ST35,ST35.8,ST45,ST52,15Mo3,13CrMo44, 1.0309, 1.0305, 1.0405 | |
Rhashiya | 10, 20, 35, 45, 20X | |
Ngaphandle kweDayimitha | 10-1000mm OKANYE ngokwezifiso | |
Ukutyeba kweendonga | 1-100mm OKANYE ngokwezifiso | |
Ubude | 1-12m OKANYE ngokwezifiso | |
Ukhuseleko | Iminqwazi yeplastiki | |
Imiqathango yokupakisha | Ilebhile kwaye ihlanganiswe kunye nentsimbi yentsimbi | |
Imiqathango yokuthunyelwa | Izikhongozeli okanye iinyanda ngaselwandle, inkonkxa enye engama-20" inokulayisha malunga neetoni ezingama-20 (iimitha ezi-5.8 ubude), isikhongozeli esinye esingama-40" singalayisha malunga neetoni ezingama-23-25(ngaphantsi kweemitha ezili-11.8 ubude) | |
Isatifikethi soMgangatho | ISO, API, Mill Test Certificate | |
Unyango loMphezulu | Ipeyinti emnyama/ivarnished surface, i-oyile yokunqanda ukubola, igalvanized okanye njengoko kufunwa ngumthengi |
Ubuchwephesha | Eshushu Isongwe/Ebandayo |
Amanqaku entsimbi | Q195, Q235A-B, Q345A-E, 20#, 10#,16Mn, ASTM A36,ASTM A500, ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH ect. |
Imigangatho | I-GB/T 3091-2001,GB/T13912-2002, BS 1387, ASTM F1083 ect. |
Umbhobho uphela | ecacileyo, ephothiweyo, ephothiweyo, isiseko esinemingxuma, kunye nokuqhwaba kwePVC / ukudibanisa / ukudibanisa, okanye njengemfuno yabathengi |
unyango | |
Isicelo | ukuhanjiswa kolwelo (umpompo wempompo, igesi, amanzi), umbhobho wokwakha, ulwakhiwo umbhobho (ulwakhiwo lwendlu eluhlaza, ipali yocingo), udonga lomkhusane, inxalenye yoomatshini njl.njl. |
Ixesha lokuzisa | 10 iintsuku ukusuka stock;I-15-20days eveliswa ngokwe-qty |
Ixesha lokuhlawula | T/T okanye L/C |
Ixesha lexabiso | CIF;CFR;FOB |
Iyalayisha Port | Qingdao port Tianjin port Shanghai Port China |