1. Yintoni inqaku elithambileyo elicimayo
Into ebizwa ngokuba yi-quenching soft point yindawo ethambileyo engacimiyo kumacandelo.Ngoko ke, ikwabizwa ngokuba yi-soft point (softspot) ukucothisa isantya sokupholisa.Le nto yaziwa ngokuqhelekileyo ngokuba yi-Leiden frosting phenomenon.Nangona ukucinywa kweoli kunganelanga ubulukhuni, oko kukuthi, ukucinywa ngokwaneleyo, kodwa akukho lula ukubangela ukucima indawo ethambileyo.Nangona kunjalo, ukucima apho i-decarbonization okanye isikhumba se-oxidation iyafana naleyo yokucima inqaku elithambileyo.
Kuthiwa ngexesha lemvula iplamu ithande ukucima inqaku elithambileyo, ukuba ukufuma kwindawo yokucima kungaphezu kwama-55%, kuqhelekile ekucimeni indawo ethambileyo.
Umphezulu wamacandelo aphezulu okucima amaza aqhelekile kwi-barber scar, okanye i-Japanese edge yemela, imibala eqaqambileyo iyacima iphoyinti elithambileyo.I-microtissue yendawo ethambileyo yokucima i-martensite kunye ne-pearlophyte encinci kakhulu (i-nodular flexter) enombala oqaqambileyo.
2. Indlela yokufumana inqaku elithambileyo lokucima
Kukho iindlela ezintathu zokufumana iindawo ezithambileyo ezicinyiweyo.Indlela yokuqala kukubona umbala obomvu okhanyayo kwindawo yokusila: indlela yesibini kukuba indlela yesithathu kukusebenzisa i-acid corrosion ukufumana indawo ethambileyo yokucima;oko kukuthi, ukudipha iindawo kwisisombululo samanzi se-50% ye-hydrochloric acid (amanzi amanzi) ukwenzela ukuhlwa, ukuba inxalenye yomhlaba ibonakala ibala elimnyama, ibala elimnyama yindawo ethambileyo yokucima. ~ 200C) iindawo zidliwe kwindawo eqinileyo, kwaye umbala kwindawo engaqinanga.Ubunzulu bomaleko ocinyiweyo bunokulinganiswa ngokusebenzisa le ndlela.
3. Ukuthintela njani ukucima ukusuka kwindawo ethambileyo
Ukuthintela ukucinywa kwamanqaku athambileyo, musa i-oxidize okanye i-decarbonize iinxalenye xa ufudumeza kuqala.Okwesibini, ukwenzela ukuthintela umphezulu weendawo ezifakwe kwifilimu yomphunga wamanzi, kungcono ukuphazamisa ngokupheleleyo ulwelo lokucima kwaye usebenzise ukutshiza kwamanzi epholileyo.Ukongezelela, ukuba ukucima nge-10% yamanzi etyuwa kunokuthintela ngokupheleleyo ukucinywa kwamanqaku athambileyo.Ukongezelela, ukusebenzisa umgca omncinci wepolishi yokucoca phezu kwendawo yokucima kuyindlela efanelekileyo yokuthintela ukucinywa kwezinto ezithambileyo. amanqaku.Ipowder yokupholisa ipholile ngokukhawuleza kuneendawo zetsimbi ezingagqunywanga kwaye ayicimi i-soft point, ngoko ke ukusebenzisa i-polish powder kwi-Japan i-knife quenching operation yindlela eyimfihlo.Kodwa kufuneka ithathwe.Ukuba umgubo wokupolisha unzima kakhulu, ukupholisa kucotha, akunzima.
I-powder epholisiweyo incinci kwaye isetyenziswe kumphezulu weendawo zokucima, kwaye xa ukucima, ubuso abujikelezwanga yifilimu ye-steam, eba yi-bubbles encinci kwaye iphakame ngokusebenzayo, ngoko ipholisa ngokukhawuleza.
Njenge-ejenti yokugqoka, ngaphezu komgubo wokupolisha.Nothuthu ngekaolini namanzi;i-mica ngaphandle kodongwe oluthambileyo kunye namanzi: i-pumice enodongwe oluthambileyo kunye namanzi, ezi kuthiwa ziindlela zokupheka ezilungileyo.
Kungekudala, isisombululo sokucima amanzi (isisombululo se-polymer quenching) sisetyenziswa ngokubanzi endaweni yokucima ioli, ene-solubility e-inverse kwaye ingenza ifilimu phezu komhlaba xa ishushu ngamalungu aphathwayo.Xa iqondo lokushisa liyehla malunga ne-90 ℃ (ezinye izisombululo ziyi-74 ℃), i-mask ebusweni iyachithwa.Ngoko ke, ukupholisa kwiqondo lokushisa eliphezulu kunokuqhutyelwa ngokulinganayo ukukhusela ukucima amanqaku athambileyo. uqaba ngayo umgubo wokuthambisa}
Ukongeza, ukuba ukupholisa kwe-ultrasonic ” Iiveki ezingama-25000 / s), ifilimu yomphunga inokususwa ngempumelelo, ngoko ke ukucinywa kwamanqaku athambileyo nako kunokuthintelwa.Ukupholisa kwe-Ultrasonic yindlela entsha yokupholisa.
Shandong Jute Steel Pipe Co.,Ltd.
Abafowunelwa: UMnu. Ji
WhatsApp: +86 18865211873
WeChat: +86 18865211873
E-mail: jutesteelpipe@gmail.com
E-mail: juteguanye@aliyun.com
Ixesha lokuposa: Mar-12-2022
