Ubungakanani bodonga olukhulu lwe-6061T6 aluminum alloy kufuneka lucinywe emva kokupheliswa okushushu. Ngenxa yokusikelwa umda wokukhutshwa kwexabiso, icandelo leprofayili liya kungena kwindawo yokupholisa amanzi kunye nokulibaziseka. Xa i-Iyot elandelayo iQenelwa iqhubeka ikhutshelwe, le nxalenye yeprofayili iya kulibaziswa. Indlela yokujongana nendawo yokulibaziseka i-chanching ingumbandela ukuba zonke iinkampani zemveliso kufuneka ziqwalaselwe. Xa inkunkuma yokuphela komsila iphela ifutshane, iisampulu zentsebenzo zithathiweyo ngamanye amaxesha ziyafaneleka kwaye ngamanye amaxesha aziqinisekanga. Xa ukhumbule ecaleni, ukusebenza kuqinisekisiwe kwakhona. Eli nqaku linika inkcazo ehambelanayo ngovavanyo.
1. Izixhobo zovavanyo kunye neendlela
Izinto ezisetyenziswa kolu vavanyo yi-6061 Aluminium Alloay. Ukuqulunqwa kwekhemikhali kwekhemikhali emiswe luhlalutyo lobuhlobo yile ilandelayo: Ihambelana ne-GB / T 3190-1966 ye-6061 Aluminium Aluminium Aluminam Aluminum Aluminium Aluminium Aluminam Aluminium Aluminium Aluminium.
Kweli vavanyo, inxalenye yeprofayili ekhutshiweyo yathatyathwa ngonyango oluqinileyo lwesisombululo. Iprofayile ye-400mm emde yahlulwe yangamawaka amabini. Indawo ye-1 yayipholile kwaye ipholile kwaye icinyiwe. Ingingqi 2 yapholwa emoyeni kangangemizuzwana engama-90 kwaye emva koko ipholile. Umzobo wovavanyo uboniswa kumzobo 1.
Iprofayile ye-Alminum ye-Aluminium esetyenzisiweyo kolu vavanyo ikhutshiwe yi-4000Spenust escerder. Iqondo lobushushu liyi-500 ° C, ubushushu obuphosakeleyo buyi-510 ° C, iqondo lokuphuma le-° le-525 ° C, isantya sokupholisa amanzi esiphezulu sisetyenziswa ngexesha lenkqubo yokuphumelela, kunye ne-400mm Isiqwenga sovavanyo ubude sithathwe ukusuka embindini weprofayili egqityiweyo egqityiweyo. Isampulu yobubanzi i-150mm kunye nokuphakama yi-10.00mm.
Iisampulu zahlulwahlulwa kwaye zaphantsi konyango lwesisombululo kwakhona. Iqondo lokushisa lesisombululo yayingama-5 30 ° C kunye nexesha lesisombululo laliziiyure ezi-4. Emva kokukhupha, iisampulu zabekwa kwitanki enkulu yamanzi kunye nobunzulu bamanzi obuyi-100mm. Itanki enkulu yamanzi inokuqinisekisa ukuba iqondo lobushushu lamanzi kwitanki lamanzi liyatshintsha elincinci emva kwesampulu ye-1 yi-odods epholileyo, ethintela ukunyuka kobushushu bamanzi ukusuka ekuchaphazeleni amandla okupholisa amanzi. Ngexesha lenkqubo yokupholisa amanzi, qinisekisa ukuba ubushushu bamanzi bungaphakathi kwe-20-2 ° C. Iisampulu ezixineneyo zaziyiminyaka eyi-165 ° C * 8h.
Thatha inxenye yesampulu engama-400mm ubude i-30mm i-10mm, kwaye wenze uvavanyo lwe-brinell. Yenza imilinganiselo emi-5 yonke i-10mm. Thatha ixabiso eliphakathi le-5 brinell ubunzima bokuba nzima kukhokelela kule nqanaba, kwaye bajongane nepateni.
Iipropathi zoomatshini beprofayili ziye zavavanywa, kwaye iCandelo leCandelo leNdawo yeDilesi ye-60mm ilawulwa kwizikhundla ezahlukeneyo ze-400mm yesampulu ye-400mm yokujonga iipropathi ezinobungqingili kunye nendawo yokuqhekeka.
Intsimi yobushushu yokutyikitywa kwamanzi epholileyo yesampulu kunye nokucingela emva kokulibaziseka kwe-90s kwakuchithwa ngesoftware ye-Ansys, kwaye amazinga okupholisa azihlalutywayo.
2. Iziphumo zovavanyo kunye nohlalutyo
2.1 Iziphumo zovavanyo lobunzima
Umzobo 2 ubonakalisa ubukhazikhazi obutshintsha i-curve ye-400mm yomenzi we-400mm ubude olinganiselweyo (ubude beyunithi ye-abscissa ibonisa i-10mm, kunye ne-0 Inokufunyanwa ukuba ubunzima kwindawo yokuphela kwamanzi buzinzile malunga ne-95Hb. Emva komgca wokukhupha phakathi kokucinywa kwamanzi kunye nokulibaziseka kwama-90s-Ukupholisa ukucutha amanzi okupholisa, ubushushu buqalisa ukwehla, kodwa iqondo lokwehla licotha ekuqaleni kwenqanaba lokuqala. Emva kwe-40mm (89Hb), ubunzima buyehla kabukhali, kwaye ihla kwixabiso eliphantsi (77Hb) kwi-80mm. Emva kwe-80mm, ubunzima abuqhubela phambili ukuhla, kodwa ukwanda ukuya kuthi ga kwinqanaba elithile. Ukunyuka kwasencinane. Emva kwe-130mm, ubunzima bahlala bengatshintshi malunga ne-83Hb. Ingacinga ukuba ngenxa yesiphumo sokuhambelana nobushushu, inqanaba lokupholisa lenxalenye yokucinywa kwenxalenye eguqukayo.
2.2 Iziphumo zovavanyo lwentsebenzo kunye nohlalutyo
Itheyibhile 2 ibonisa iziphumo zovavanyo lwe-tensle eziqhutywa kwiisampulu ezithathwe kwizikhundla ezahlukeneyo zecandelo elifanayo. Inokufunyanwa ukuba amandla e-thensend kunye namandla okuvelisa uNombolo yoku-1 noNo. 2 phantse akukho tshintsho. Njengomda wokupheliswa kokucinywayo uphela unyuka, amandla angamanye kunye nokuvelisa amandla e-alloy bonisa indlela ebalulekileyo. Nangona kunjalo, amandla e-subile kwindawo nganye yesampulu ingaphezulu kwamandla asemgangathweni. Kuyo kuphela kwindawo enobunzima obusezantsi, amandla omnqophisi asezantsi kunomgangatho wesampulu, intsebenzo yesampule ayizange yenziwe.
Umzobo 4 ubonakalisa iipropathi ezinobungqingiwa weSampuluko Nombolo 3. Inokufunyanwa kumzobo 4 ukuba kude kumgca wokwahlulahlula, ukunciphisa ubulukhuni bokulibazisa. The decrease in hardness indicates that the performance of the sample is reduced, but the hardness decreases slowly, only decreasing from 95HB to about 91HB at the end of the parallel section. Njengoko kunokubonwa kwiziphumo zentsebenzo kwiTheyibhile 1, amandla e-nunsile anciphile ukusuka kwi-342MPA ukuya kwi-320MPA yokupholisa amanzi. Kwangelo xesha, kwafunyaniswa ukuba indawo yokuqhekeka kwesampulu ye-tensle ikwisiphelo secandelo elifanayo kunye nobunzima obuphantsi. Oku kungenxa yokuba ikude kakhulu kukuphola kwamanzi, ukusebenza kwe-alloty kuncitshiswa, kwaye isiphelo sifikelela kwinqanaba lamandla e-thensile kuqala ukwenza i-tench. Okokugqibela, hlukana neyona ndawo yokusebenza esezantsi, kwaye isikhundla sekhefu sihambelana neziphumo zovavanyo lwentsebenzo.
Umzobo o-5 ubonakalisa ijika elinobunzima becandelo lesampulu yesampulu. 4 kunye nendawo yokuqhekeka. Inokufunyanwa ukuba kude kumgca wokwahlula amanzi okupholisa amanzi, ubuthongo lobunzima bokulibazisa ukucinywa. Kwangelo xesha, indawo yokuqhekeka nayo ikwisiphelo apho ubunzima obuphakamileyo, 86Hb uqhelane. Ukusuka kwiTheyibhile 2, kufunyaniswe ukuba phantse akukho ngxaki kwiplastiki ekuphela kwamanzi. Ukusuka kwiTheyibhile 1, kufunyaniswe ukuba isampulu yokusebenza (amandla e-thansile 298MPA, iveefive 266MPA) kuncitshisiwe kakhulu. Amandla e-subile yi-298MPA, engafikanga amandla esivuyiweyo esiphelweni esipholileyo (315MPA). Isiphelo senze i-netting phantsi xa ingaphantsi kwe-315MPA. Ngaphambi kokuqhekeka, kuphela ukungakhathali okuphezulu kwendawo epholileyo. Njengoko uxinzelelo lwanyamalala, i-sorin kwindawo yokuphela kwamanzi yanyamalala. Ngenxa yoko, isixa sengcaciso kwindawo yokupholisa amanzi kwiTheyibhile 2 phantse akukho tshintsho. Isampulu yezaphulelo ekupheleni komlilo wokulibaziseka, indawo engalunganga incitshisiwe, kwaye ubunzima bokuphela kweyona nto iphantsi, bubangela ukuncitshiswa okukhulu kweziphumo.
Thatha iisampulu ukusuka kwi-100% ye-100% yokuchithwa kwe-cindechting yokucinywa kwe-400mm. Umzobo 6 ubonakalisa ijika elinzima. Ubulukhuni becandelo elifanayo buncitshisiwe ukuya kwi-83-84HB kwaye izinzile. Ngenxa yenkqubo enye, ukusebenza kuqhelekile. Akukho patheni ebonakalayo ifumaneka kwindawo yokuqhekeka. Intsebenzo ye-alloy isezantsi kuneso sesampulu ecinywe emanzini.
Ukwenzela ukuphinda uphonononge rhoqo ukusebenza kunye nokuqhekeka, icandelo elifanayo le-pharallel statimen ikhethwe kufutshane nendawo ephantsi yobuqili (77Hb). Ukusuka kwiTheyibhile 1, kwafunyaniswa ukuba intsebenzo yancitshiswa kakhulu, kwaye inqaku le-friction lavela kwindawo ephantsi yobunzima kumzobo 2.
2.3 Iziphumo zohlalutyo lwe-ANTS
Umzobo 7 ubonakalisa iziphumo ze-ANSS I-ANSEY ukulinganisa i-curves yokupholisa kwizikhundla ezahlukeneyo. Ingabonwa ukuba iqondo lobushushu lesampulu kwindawo yokupholisa amanzi iwehlile ngokukhawuleza. Emva kwe-5s, iqondo lobushushu liye laya ngaphantsi kwe-100 ° C, kwaye kwi-80mm evela kumgca wokwahlula, ubushushu behle ukuya kwi-210 ° C kwi-90s. Umndilili weqondo lokushisa luyi-3.5 ° C / s. Emva kwemizuzwana engama-90 kwindawo yokupholisa i-terminal yomoya, iqondo lobushushu liyaya malunga ne-360 ° C, ngomyinge ophakathi we-1.9 ° C.
Ngohlalutyo lwentsebenzo kunye neziphumo zokulinganisa, kufumanisa ukuba indawo yokusebenza kwendawo epholileyo yamanzi kunye neNdawo yokuCwangcisa i-Conchching yindlela yokutshintsha inyathelo lokuqala lokuncipha emva koko lonyuke kancinci. Ukuchaphazeleka kukuphola kwamanzi kufutshane nomgca wokwahlula-hlula, ukuqulunqwa kobushushu kubangela isampulu kwindawo ethile yokuphosa kwinqanaba lokupholisa ubuncinci (3.5 ° C). As a result, Mg2Si, which solidified into the matrix, precipitated in large quantities in this area, and the temperature dropped to about 210°C after 90 seconds. Isixa esikhulu se-MG2SIIITA siphinde sakhokelela kwifuthe elincinci lokupholisa amanzi emva kwe-90 s. Isixa seSigaba sokuqinisa iSigaba seMg2SI ePhakanyiweyo emva kokuba kuncitshiswe ukuphathwa gadalala, kwaye umsebenzi wesampulu wancitshiswa. Nangona kunjalo, indawo yokulibaziseka okucinyiweyo kude kumgca wokwahlulahlula ichaphazelekile kukuphola kwamanzi okupholisa ubushushu bamanzi, kwaye i-alloy ipholile ngokuthe chu phantsi kweemeko zokupholisa komoya (i-CORTRAL 1.9 ° C / S). Inxalenye encinci yenqanaba le-MG2SI ihamba kancinci, kwaye ubushushu bungama-360c emva kwama-90s. Emva kokupholisa amanzi, uninzi lwenqanaba le-MG2SI lisekwiMatrix, kwaye iyasasaza kwaye ichaze i-wagaping emva kokwaluphala, edlala indima eyomeleza.
3. Ukuqukumbela
Yafunyanwa ngovavanyo ukuba ukulibaziseka kuya kubangela ubunzima bendawo yokuhamba-hamba ngokungxama kunye nokucinywa kokucimeka kude kube ekugqibeleni kuyazinza.
I-6061 Aluminium Alloud, amandla e-thanset emva kokucinywa okuqhelekileyo kunye nokuzilibaziseka ukunciphisa i-908 ye-348MPA kunye ne-310MPA kunye ne-252MPA, zombini ihlangabezane nemigangatho yokusebenza yesampulu.
Kukho indawo enesidima esisezantsi, esincitshiswa ukusuka kwi-95hb ukuya kwi-77Hb emva kokucinywa kwesiqhelo. Intsebenzo apha ikwasezantsi, kunye namandla e-thensile ye-271MPA kunye nesivuno se-220PA.
Ngohlalutyo lwe-ANSS, kwafunyaniswa ukuba inqanaba lokupholisa kwindawo yokusebenza esezantsi kwinqanaba le-90s eliphantsi lokuchithwa kwe-90s lincitshisiwe linciphile malunga ne-3.5 ° C ngomzuzwana, isigaba esiqinileyo seSigaba esiqinileyo se-MG2SI. Ngokwalo nqaku, kunokubonwa ukuba ingozi yengozi ivela kwindawo yokuhamba-hamba edibeneyo kwi-cunching yeyodwa kunye nokulibaziseka kwendlela yokuhamba, ebaluleke kakhulu kwi-cunsing yomsila ofanelekileyo wokuphelisa umsila ofanelekileyo wokupheliswa komsila wokuphuma komsila ukuphela kwenkunkuma.
Ihlelwe ngoMeyi kaMeyi Jiang kwi-Aluminum
I-Post Time: Aug-28-2024
