1. Q: Cov txheej txheem tsim khoom lag luam ib txwm siv rau ASTM A335 p5 steel yeeb nkab?
A: Astm A335 P5 Steel Yeeb Nkab qhia meej meej txog kev ua se tau. Qhov no yog vim hais tias seamless kav pub rau siab dua siab {{bearing {}} kub thiab siab {5} {}} siab- siab { Kev tsim khoom lag luam feem ntau pib los ntawm tho los yog extruding ib daim ntawv nplua rau hauv lub raj hollow. Qhov no lub raj ces undergoes ib series ntawm yob, kos duab, lossis kev sim (cyclic dov) cov txheej txheem kom ua tiav qhov kawg thiab phab ntsa tuab yuav tsum muaj. Qhov txheej txheem tag nrho ua kom ntseeg tau ib qho kev ua txhaum cai
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A: Li normizing thiab tempering yog qhov tseem ceeb ntawm kev kho cua sov kom ntseeg tau tias qhov ua tau zoo ntawm p5 steel yeeb nkab. Kev tawm dag zog cuam tshuam nrog cua sov cov yeeb nkab steel rau qhov kub ntawm AC3 theem hloov mus, thiab tom qab ntawd txias rau hauv huab cua. Nws lub hom phiaj tseem ceeb yog txhawm rau txhawm rau txhawm rau txhawm rau cov qoob loo loj, homogenize cov tshuaj lom neeg tshuaj lom neeg, thiab tsim kom muaj zog thiab nruj dua microstructure. Tempering, tom qab ib txwm ua, koom nrog rov qab ua kom rov qab ua rau kub hauv qab AC1, tuav qhov kub thiab txias, thiab tom qab ntawd txias. Cov txheej txheem no zoo tshem tawm cov kev ntxhov siab sab hauv tsim los ntawm normalizing thiab txhim kho cov ntaub ntawv yas thiab kev cuam tshuam tawv. Qhov tseem ceeb tshaj, kev txhawb nqa cov kev txhawb nqa tau ruaj khov ntawm carbides, ua kom zoo dua cov microstruction ntawm lub zog thiab tawv hauv cov yeeb nkab steel.
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A: Ua kom muaj qhov tseeb ntawm qhov tseeb thiab cov nplaim hluav taws xob zoo ntawm p5 hlau kav yuav tsum tau muaj ntau cov txheej txheem txheej txheem thiab tswj cov ntsiab lus. Tom qab kub dov los yog cov yeeb nkab txias lossis cov yeeb nkab steel feem ntau undergoes li cas los tswj nws txoj kab uas hla kev, phab ntsa thickness txawv, thiab kev ncaj. Hais txog cov nplaim hlau zoo, cov yeeb nkab steel undergoes nyuaj rau tshem tawm cov kev tawg tawm xws li kev ntxhov siab cov ntsiab lus thiab ua rau tsis muaj kev ntxhov siab hauv qab. Me kev sib luag ua tsis tau zoo yuav raug tshem tawm los ntawm kev sib tsoo, tab sis phab ntsa tuab tom qab sib tsoo yuav tsum yog nyob hauv kev ua kom muaj kev lag luam. Thaum kawg, cov chaw tsim khoom lag luam yuav tsum tau kuaj xyuas thiab ua raws li qhov seem tsis ntev thiab cov khoom lag luam AV335.
4. Q: Qhov tshwj xeeb yuav tsum muaj dab tsi rau P5 Cov Yeeb Nkab Smooting Txheej Txheem?
A: P5 steel yeeb nkab smelting txheej txheem qhov kev xav tau siab ntawm kev coj dawb huv thiab kev sib dhos. Kev ua kom zoo dua yog feem ntau ua hauv lub tshuab hluav taws xob ua hluav taws xob (EOF) lossis ua kom muaj pa hluav taws xob (piv txwv li lub tshuab hluav taws xob sab nraud) thiab lub tshuab hluav taws xob (VD lossis RH). Cov txheej txheem no txo tau kom zoo txo qis cov pa roj (piv txwv li, hydrogen, thiab nitrogen) thiab nitrogen) thiab phosphorus) hauv cov hlau molten. Kev kub siab heev yog qhov tseem ceeb rau kev ua kom cov yeeb nkab qhov siab - kub distabilance thiab creep tsis kam. Ua kom meej muaj kev sib xyaw ua ke tau ua rau thaum lub sijhawm ua kom zoo dua qub kom ntseeg tau tias muaj cov tshuaj sib xyaw ua ke uas tau raws cov qauv kev sib xyaw ua ke.
5. Q: Qhov kev sim ua tsis tau zoo rau p5 steel yeeb nkab tom qab tsim khoom? A: Txhawm rau kom muaj kev ncaj ncees ntawm cov kav hlau steel, kev kuaj teeb meem tsis zoo (NDT) yuav tsum ua tom qab kev tsim khoom. Raws li cov qauv yuav tsum tau ua, txhua lub p5 steel yeeb nkab unegoes ingogoes eddy kev sim cov kev sim siab tam sim no (ut) los xyuas qhov tsis xws luag ntev. Cov hau kev no tau ua tau zoo heev hauv kev kuaj pom sab hauv lossis qhov chaw tsis sib xws. Tsis tas li ntawd, cov kav hlau steel mus dhau hydraulic kuaj (hydrostatic siab kuaj) kom paub tseeb lawv lub peev xwm los tiv thaiv lub siab uas tsis muaj kev lom zem lossis deformation. Qhov kev ntsuas siab yog suav raws li cov qauv thiab tswj hwm rau lub sijhawm tshwj xeeb. Rau cov ntawv thov ntau dua, kev sim nqus hlau sib nqus (MT) lossis kev sim ua kua (PT) kuj tseem yuav tsum tau kuaj xyuas qhov tsis xws luag.
