Izinto ezahlukeneyo zevalve yobushushu obusebenzayo zisebenzisa izinto zevalvu yentsimbi engenasici
Enye yezinto eziphambili ekufuneka ziqwalaselwe kuyilo lwevalvu kunye nokukhethwa kwezinto kubushushu bokusebenza kwevalve. Ukulungelelanisa ngakumbi ubushushu obufanelekileyo bokusebenza kwezixhobo zomzimba zevalvu, ukusuka ekusebenzeni kwenombolo yentsimbi egxininisiweyo esetyenziswa kwiindidi ezahlukeneyo zemathiriyeli yokwakha ivalve, ubushushu obufanelekileyo bokusebenza kunye neemfuno ezinxulumene nezixhobo zomzimba zokuziphatha kwevalve ezisetyenziswa kwizixhobo zasekhaya zepetrochemical, izityalo zekhemikhali, izichumisi eziphilayo, ubunjineli bamandla ombane kunye noshishino lwesinyithi kunye neminye imimandla ichaziwe kuyilo lwenkangeleko, ukwenziwa kunye novavanyo lweemveliso zevalvu Ewe. Eli phepha lazisa ikakhulu ngokweenkcukacha ivalve yobushushu, ivelufa eqhubekayo yobushushu obuphezulu, i-nickel resistant corrosion base base alloy corrosion resistant nickel base base alloy valve ekhethiweyo.
Enye yezinto eziphambili ekufuneka ziqwalaselwe kuyilo lwevalvu kunye nokukhethwa kwezinto kubushushu bokusebenza kwevalve. Ukulungelelanisa ngakumbi ubushushu obufanelekileyo bokusebenza kwezixhobo zomzimba zevalvu, ukusuka ekusebenzeni kwenombolo yentsimbi egxininisiweyo esetyenziswa kwiindidi ezahlukeneyo zemathiriyeli yokwakha ivalve, ubushushu obufanelekileyo bokusebenza kunye neemfuno ezinxulumene nezixhobo zomzimba zokuziphatha kwevalve ezisetyenziswa kwizixhobo zasekhaya zepetrochemical, izityalo zekhemikhali, izichumisi eziphilayo, ubunjineli bamandla ombane kunye noshishino lwesinyithi kunye neminye imimandla ichaziwe kuyilo lwenkangeleko, ukwenziwa kunye novavanyo lweemveliso zevalvu Ewe. Ukongezelela, kwimbono yolawulo lomgangatho kunye nokulawulwa kwemveliso yeshishini kunye nokuthengwa kwezinto eziphathekayo, kwintsimbi nganye eyahlukileyo kufuneka ikhethwe ngokusebenza kakuhle okubanzi, akufanelekanga ukusetyenziswa kweemodeli ezininzi zetsimbi ezinenani elifanayo, ukukhusela ukudideka.
1. Izinto eziphambili zevalve yeqondo lokushisa (-254 (i-hydrogen emanzi) ~ -101 ℃ (butadiene)) ukuziphatha kufuneka kube yintsimbi ephantsi, i-alloy material okanye i-aluminium alloy profile ene-body-centric lattice constant. Ubushushu obusezantsi kakhulu emva kwenkqubo yonyango lobushushu, ngakumbi ukuqina kokuqina kobushushu obuphantsi kakhulu buhlangabezana neemfuno zomgangatho. Ezi ntsimbi zilandelayo ezisezantsi zinokusetyenziswa ukwenza iivalvu zobushushu obugqibeleleyo. I-ASTMA351 CF8M, CF3M, CF8 kunye neCF3,ASTM A182F316, F316L, F304 kunye neF304L,ASTM A433 316, 316L, 304, 304L kunye neCF8D. Ipleyiti yesekethe yeoli, ivalve yokuqukuqela enye, ivalve yesango okanye ivalve yepiston yevalve yobushushu kufuneka ibe lunyango lwe-cryogenic kwinitrogen engamanzi (-196 ℃) phambi kokucubungula okunzulu.
2. I-valve eqhubekayo yeqondo lokushisa eliphezulu I-valve yensimbi ye-Cr-Mo eqhubekayo isetyenziselwa ukukhetha i-WC6, i-WC9 kunye ne-C5 (ZG1Cr5Mo) kwinkcazo ye-ASTM A217, kunye namacwecwe adibeneyo adibeneyo yi-F11, F22 kunye ne-F5 kwi-ASTM A182.
(1) I-chromium ephantsi ye-chrome-molybdenum steel ine-WC6, i-WC9, i-F11 kunye ne-F22, i-medium yayo esebenzayo ngamanzi, i-steam kunye ne-radon gas, ayifanelekanga kumxholo wesulfure weoli esulungekileyo. I-WC6 kunye ne-F11 zifanelekile kubushushu bokusebenza obuyi -29 ~ 540 ℃, kunye ne-WC9 kunye ne-F22 zifanelekile kubushushu bokusebenza obuyi -29 ~ 570 ℃.
(2) I-C5 (ZG1Cr5Mo) kunye ne-F5 chromium pentamolybdenum insimbi ephezulu yokushisa, imidiya yayo esebenzayo yamanzi, i-steam, i-radon gas kunye ne-sulfur content oil esulungekileyo. I-C5(ZG1Cr5Mo) ukuba isetyenziswe kumphunga wamanzi, ubushushu bayo obuphezulu bokusebenza yi-600 ℃. Ubushushu obuphezulu bokusebenza ngama-550 ℃ xa isetyenziswa phakathi njenge-oyile esulungekileyo yesulfure. Ngoko ke, ubushushu obusebenzayo be-C5(ZG1Cr5Mo) bufuneka ukuba bube ngaphantsi kwe-550 ℃.
I-3, isiseko se-nickel esinganyangekiyo kwisiseko sobushushu obuphezulu be-alloy ye-alloy ekwazi ukumelana ne-nickel isiseko se-alloy valve sisitshixo sokusebenzisa i-ASTM A494 inkcazo ye-alloy ye-monel eyakhiweyo.
(1), i-nickel base alloy (CZ-100), i-alloy ye-inconnel aluminium (CY-40), i-Hastelloy alloy B (N-12MV, N-7M) kunye ne-Hastelloy C (CW- (1) i-Monel alloy Monel inamandla amakhulu kunye ne-ductibility, ngokukodwa ukuxhathisa okugqwesileyo ekunciphiseni i-asidi kunye nezinto ze-asidi ezomeleleyo kunye neepropati ze-corrosion yolwandle, ngoko ke, isetyenziselwa ukuvelisa kunye nokuthutha i-hydrochloric acid, amanzi etyuwa, izinto ezingathathi hlangothi, iityuwa zealkali kunye ne-oxidizing acids kunye nezinye izixhobo zemidiya kunye neevalvu, nazo. ilungele i-hydrogen hydrogen chloride eyomileyo kunye ne-manic, igesi ye-hydrogen chloride, i-425 ℃ eqhubekayo yobushushu obuphezulu be-hydrogen kunye ne-450 ℃ eqhubekayo yobushushu obuphezulu begesi ye-hydrogen chloride kunye nezinye izinto, kodwa ayixhathisi isiqulatho sesulfure izinto kunye nezinto zokunciphisa (ezifana ne-sodium cyanide kunye nezinto ezine-oksijini. I-corrosion Ikhowudi yempahla yevalve ye-Monel i-alloy yi-MM, kwaye inxalenye ephambili yi-valve ye-valve ye-carbon steel yi-C/M, ikhowudi ye-valve ye-CF8 yi-P/M. ikhowudi yeCF8M yi-R/M. Ubushushu obufanelekileyo bokusebenza kweMonel M35-1, iMonel 400 kunye neMonelK500 aluminium alloys yi -29 ~ 480 ℃.
(2) I-Cast nickel base alloy I-Cast nickel alloy (CZ-100) yi-95%Ni kunye ne-1100%C, kwaye akukho pleyiti eqengqelekayo eqengqelekayo. I-CZ-100 inokumelana ne-corrosion egqwesileyo xa isetyenziswa kwisisombululo esiqhubekayo sobushushu obuphezulu kunye noxinzelelo oluphezulu okanye ngaphandle kwamanzi kunye ne-alkali. I-CZ-100 isetyenziswa kakhulu kwinkqubo yokuveliswa kweekhemikhali ze-chlor-alkali kunye nogxininiso oluphezulu lwe-etching (kuquka ukunyibilika kwe-aluminium chloride ngaphandle kwamanzi kunye ne-anhydrous) nakwiindawo apho ubhedu kunye nentsimbi kunye nezinye iimveliso zokungcola kwendalo azikho. Cast nickel base alloy CZ-100 ikhowudi yevalve impahla Ni. CZ-100 aluminiyam ingxubevange ilungele ukusebenza lobushushu -29 ~ 316 ℃.
3 Ukwenziwa kwe-alloys ye-Hastelloy B ukuya kwi-N-12MV(N-12M-1) kunye ne-N-7M(ezinye izinto ezibizwa ngokuba yi-N-12M-2, ekwaziwa ngokuba yi-Chlorimet 2 aluminiyam alloy) kwi-ASTM A494 ziqengqeleke kwi-UNS kwi-ASTM B335 N10665 . I-Hastelloy B iyamelana ne-asidi ye-sulfuric yazo zonke izigxina, kunye neetyuwa ezingancitshiyo kunye ne-acids. Ivalve ye-corrosion resistant valve ye-Hastelloy B, ukusuka kwi-corrosion resistance kunye noxinzelelo lwe-corrosion resistance eqwalaselweyo kufuneka kukhethwe ibakala eliphantsi lekhabhoni lokhuseleko lokusingqongileyo i-Hastelloy B (N-7M). Inombolo yempahla yeHastelloy Akukho mfuneko kwibala levalvu. Inombolo yempahla yevalve ye-Hastelloy B inokuchazwa ngokuthe ngqo ngokwenza inombolo edibeneyo. IHastelloy B ifanelekile kubushushu bokusebenza obuyi -29 ℃ ~ 425 ℃.
Lo mgangatho uchaza imilinganiselo, uyilo lwenkangeleko, imigangatho yobugcisa, iindlela zokuvavanya, imigangatho yokuhlola, amanqaku okupakisha kunye neziqinisekiso zomgangatho wentsimbi eshushu eqengqelekayo. Lo mgangatho usebenza kwi-corrosion resistant hot rolled steel ngeenjongo jikelele. I-GB 222 yensimbi ye-222 uhlalutyo lokwakheka kweekhemikhali kusetyenziswa indlela yokulinganisa isampuli kunye nokwakhiwa kwemveliso egqityiweyo imposiso evumelekileyo ye-GB 223 yentsimbi kunye ne-aluminium ingxubevange yokuhlalutya imichiza indlela ye-GB 226 yentsimbi ephantsi kunye nokusilela kwindlela yokubona i-asidi ye-GB 228 indlela yokuvavanya isinyithi ye-GB 230 izixhobo zetsimbi Indlela yokuvavanya ubulukhuni be-Rockwell GB 231 izinto zentsimbi Brinell.. .
1. Ingcamango yomxholo kunye nenkundla yesicelo
Lo mgangatho ipleyiti steel stainless eshushu yaqengqeleka ubungakanani intsimbi, uyilo inkangeleko, imigangatho zobugcisa, iindlela zovavanyo, imigangatho yokuhlola, amanqaku ukupakishwa kunye nesiqinisekiso somgangatho kunye nolunye ulwazi olufanelekileyo.
Lo mgangatho usebenza kwi-corrosion resistant hot rolled steel for general purpose.
2. Imigangatho yereferensi
I-GB 222 yensimbi yohlalutyo lokwakheka kweekhemikhali ngendlela yesampulu yesampula kunye nokwakhiwa kweemveliso ezigqityiweyo impazamo evumelekileyo
I-GB 223 Iindlela zokuhlalutya iikhemikhali zetsimbi kunye ne-aluminium alloys
I-GB 226 yensimbi - ukuzimisela kwesakhiwo esiphantsi - amandla kunye neziphene nge-acid etch
I-GB 228 indlela yokuvavanya i-Metal tensile
I-GB 230 yezixhobo zetsimbi - Indlela yokuvavanya ubulukhuni beRockwell
I-GB 231 Iindlela zokuvavanya amandla e-Tensile kwizinto zentsimbi
Iindlela zokugoba ze-GB 232 zezinto zetsimbi
Iimfuno ngokubanzi zokwamkelwa, ukupakishwa kwangaphandle, ukumakishwa kunye neSatifikethi soMgangatho we-GB 247 iipleyiti zentsimbi kunye namatyathanga entsimbi.
I-GB 709 yentsimbi eshushu eqengqelekayo kunye nemilinganiselo yekhonkco yentsimbi, uyilo lwangaphandle, ubunzima bomnatha kunye neempazamo ezivumelekileyo.
I-GB 2975 yensimbi yokwakha - iisampulu zeemfuno ze-mechanics zesakhiwo kunye neemvavanyo zenkonzo
GB 4334.1 ipleyiti yensimbi engenasici 10% indlela yokuvavanya i-hydrochloric acid corrosion
I-GB 4334.2 ipleyiti yensimbi engenasici ye-HCL - i-magnesium hydroxide etching test method
I-GB 4334.3 iipleyiti zensimbi ezingenasici 65% indlela yokuvavanya i-sodium cyanide etch
Iipleyiti zensimbi ezingenasici GB 4334.4 sodium cyanide-hydrochloric acid etch test method
I-GB 4334.5 ipleyiti yensimbi engenasici ye-HCL - i-sodium thiosulfate etched test method
GB 4334.6 ipleyiti steel stainless 5% sulfuric acid corrosion test indlela
I-GB 4340 imathiriyeli yesinyithi - Indlela yokuvavanya ubulukhuni beBrinell
I-GB ye-6397 ye-metal tensile test specimen
Uvavanyo lwe-Corrosion kwi-synthetic atmosphere (uvavanyo lwe-SS)
3. Iinkcukacha kunye noyilo lwembonakalo
3.1 Ubungakanani kunye nempazamo evumelekileyo yentsimbi eshinyeneyo kufuneka ihambelane nemimiselo efanelekileyo ye-GB 709.
3.1.1 Uburhabaxa ngemitha yepleyiti yentsimbi eshinyeneyo kufuneka buhambelane namalungiselelo afanelekileyo kwiThebhile yoku-1.
Ulawulo lukaRhulumente loLawulo loMgangatho olukhutshwe ngo-1992-11-16, olugunyazisiweyo ukuba luphunyezwe ngo-1993-06-01
Ixesha lokuposa: Feb-16-2023
