Ukuze kuthuthukiswe ubulukhuni obungaphezulu nokugqoka ukumelana16Mn amashubhu angama-rectangular, ukwelashwa okungaphezulu, okufana ne-surface flame, i-high-frequency surface quenching, ukwelashwa kokushisa kwamakhemikhali, njll. kufanele kwenziwe kumashubhu angama-rectangular. Ngokuvamile, izindawo eziningi eziphakeme nezimaphakathi ziyacishwa, futhi izinga lokushisa lokushisa lingama-850-950 degrees. Ngenxa yokungahambi kahle kwe-thermal, isivinini sokushisa akufanele sisheshe kakhulu. Uma kungenjalo, imifantu encibilikayo kanye nemifantu ecishayo izovela. Ukucisha imvamisa ephezulu kudinga ukuthi i-matrix ejwayelekile ibe yi-pearlite. Isifutho samanzi noma ukupholisa isisombululo sotshwala se-polyvinyl. Izinga lokushisa lokushisa liyi-200-400 ℃, futhi ubulukhuni buyi-40-50hrc, obungaqinisekisa ukuqina nokumelana nokugqokaithubhu yesikwelephezulu.
Amaphuzu abalulekile alandelayo azoqashelwa lapho kucinywa16Mn square tube:
(1)Ipayipi elide akufanele lishiswe liqonde esithandweni sokugeza usawoti noma esithandweni somthombo ngangokunokwenzeka, ukuze kuncishiswe ukubola okubangelwa isisindo salo senetha.
(2)Lapho ukushisa amapayipi anezingxenye ezihlukene esithandweni somlilo esifanayo, amapayipi amancane azobekwa ekupheleni kwangaphandle kwesithando somlilo, futhi amapayipi amakhulu namapayipi amancane kufanele ahlelwe ngokwehlukana.
(3)Inani ngalinye lokushaja lizohambisana nezinga lamandla esithandweni somlilo. Uma inani lokudla likhulu, kulula ukucindezela nokukhuphuka kwezinga lokushisa, futhi isikhathi sokushisa sidinga ukunwetshwa.
(4)Izinga lokushisa lokucisha lamashubhu ayisikwele angama-rectangular acinywe ngamanzi noma amanzi anosawoti kufanele athathwe njengomkhawulo ophansi, futhi izinga lokushisa lokucisha lamafutha noma usawoti oncibilikisiwe ocinyiwe uzothathwa njengomkhawulo ongaphezulu.
(5)Ngesikhathi sokucisha okubili okuphakathi, isikhathi sokuhlala endaweni yokuqala yokucisha sizolawulwa ngokwezindlela ezintathu ezingenhla. Isikhathi esihambayo ukusuka endaweni yokuqala yokucisha kuya kweyesibili yokucisha kufanele sibe sifushane ngangokunokwenzeka, okungcono kakhulu ama-0.5-2s.
(6)Amapayipi ubuso bawo obungavunyelwe ekufakweni kwe-oxidation noma ukukhishwa kwe-carburization azoshiswa esithandweni sokugeza sikasawoti esilinganiselwe noma esithandweni somlilo esivikelayo. Uma ingahlangabezani nemibandela, ingashiswa esithandweni sokumelana nomoya, kodwa kufanele kuthathwe izinyathelo zokuzivikela.
(7)Ngemuva kokuthi ishubhu elingunxande elingu-16Mn licwiliswe lime mpo endaweni yokucisha, alijiki, liye phezulu naphansi, futhi limise ukunyakazisa kwendawo yokucisha.
(8)Lapho ikhono lokupholisa lezingxenye ezidinga ubulukhuni obuphezulu linganele, yonke ingxenye ingacwiliswa endaweni yokucisha ngesikhathi esifanayo, futhi izingxenye zingapholiswa ngokufafaza uketshezi ukuze kuthuthukiswe isivinini sokupholisa.
(9)Kumele ibekwe endaweni yokushisa ephumelelayo. Inani lokushaja, indlela yokushaja kanye nefomu lokupakisha kuzoqinisekisa ukuthi izinga lokushisa lokufudumala lifana, futhi akunakwenzeka ukuba kubangele ukuwohloka nokunye ukukhubazeka.
(10)Uma ushisa esithandweni somlilo sikasawoti, akufanele sisondele kakhulu ku-electrode ukuze ugweme ukushisa kwendawo. Ibanga kufanele libe ngaphezu kuka-30mm. Ibanga ukusuka odongeni lwesithando somlilo kanye nokujula kokucwiliswa ngaphansi kwezinga eliwuketshezi kuzolingana no-30mm.
(11)Insimbi yesakhiwo ne-carbon steel ingashiswa ngokuqondile esithandweni esinezinga lokushisa lokucisha noma 20-30 ℃ ngaphezu kwezinga lokushisa lokucisha. Ikhabhoni ephezulu nensimbi ephezulu ye-alloy kufanele ishiswe kuqala cishe ku-600 ℃ bese inyuselwa ekucimeni kwezinga lokushisa.
(12)Izinga lokushisa lokucisha linganyuswa ngokufanelekile kumapayipi anesendlalelo esiqinile sokuqina, futhi izinga lokushisa eliphansi lokucisha lingakhethwa kumapayipi anesendlalelo sokuqina esingajulile.
(13)Ubuso beshubhu yesikwele esingu-16Mn ngeke bube nawoyela, insipho nokunye ukungcola. Ngokuyisisekelo, izinga lokushisa lamanzi akufanele lidlule ku-40 ℃.
Isikhathi sokuthumela: Sep-16-2022
