20 # ishidi lensimbi eligoqiwe elishisayo

(1) Izici Insimbi ingeyensimbi enekhabhoni ephansi yekhwalithi ephezulu, ebandayo ekhishwe, eshisiwe nensimbi eqinile. Insimbi inamandla aphansi, ukuqina okuhle, ipulasitiki kanye nokushisela. Amandla aqinile angama-253-500MPa, futhi ubude bungu-≥24%.
Izakhiwo ze-20 ngokuyisisekelo zifana nalezo zensimbi engu-15, kodwa amandla aphakeme kancane. Ukusetshenziswa: kulungele ukwakhiwa kwezingxenye ezincane nezimaphakathi ze-carburizing kanye ne-carbonitriding ezingabalulekile ekwakhiweni kwezimoto, ogandaganda kanye nokukhiqizwa kwemishini ejwayelekile, njengezicathulo zamabhuleki ezandla, ama-lever shaft, amafoloko esivinini se-gearbox, amagiya okudlulisa kanye namaCamshafts kugandaganda, ukumiswa kwe-equalizer shafts, i-equalizer bushings yangaphakathi nangaphandle, njll.; esetshenziselwa ukukhiqiza izingxenye ezihlukahlukene zemishini ezingacindezelwe kodwa ezidinga ukuqina okuphezulu ngaphansi kwezimo ezishiswayo noma ezijwayelekile; emshinini wokukhiqiza umshini osindayo nophakathi nendawo, njengezinduku zokubopha ezifojiwe noma ezicindezelwe, amaketanga, amalever, imikhono, ama-clamps, njll. Embonini yokukhiqiza umshini wokushisa oshisayo nobhayela, isetshenziselwa kakhulu amapayipi, ama-flange, izihloko nezixhumi ezihlukahlukene. ukusebenza kumidiya engagqwali ngengcindezi engu-≤6N/square kanye nezinga lokushisa elingu-≤450℃; esetshenziswa ukwenza iziphambano kojantshi, izitimela kanye nezimoto Castings ezifana amakhanda namapiston.
Ukwenza ngokwejwayelekile kungathuthukisa i-spheroidization yensimbi, kucwengisise i-proeutectoid ferrite enkulu, futhi kuthuthukise ukusebenza kokusika kokungenalutho ngaphansi kuka-160HBS.
Umzila wenqubo wezingxenye zensimbi zensimbi uthi: ukuvala → ukubumba kungenalutho → ukuhlanganisa → ukukhanda okungalungile → ukugoqa okubandayo → ukuhlanganisa kabusha ikristalu → ukuqeda ngomshini → ukuvala → ukucisha, ukushisa → ukugaya nokupholisha → ukuhlanganisa.
(2) Isimo sokulethwa nobulukhuni Isimo esingashisisiwe, ubulukhuni ≤156HBS.

Ukwakheka kwamakhemikhali kwensimbi ejwayelekile ye-JB/T 6057-92 (ingxenye enkulu, %)

C	Si	UMn	P	S	Ni	Cr	Cu
0.17~0.23	0.17~0.37	0.35~0.65	≤0.035	≤0.035	≤0.30	≤0.25	≤0.25

Izakhiwo zemishini
(5) Izinga lokushisa lokushintsha kwesigaba (inani elilinganiselwe) Ac1=735℃, Ac3=855℃, Ar3=835℃, Ar1=680℃
(6) Ukucaciswa okujwayelekile Izinga lokushisa lingu-920 ~ 950℃, futhi isithando somlilo sipholile ngomoya. Ubulukhuni buyi-131 ~ 156HBS.
(7) Ukucaciswa kokuthambisa ukwelashwa kwezikhala ezicindezelwe ezibandayo Izinga lokushisa lingu-700~720℃, isikhathi sokubamba ngu-8~15h, futhi izinga lokupholisa lingu-50~100℃/h, futhi izinga lokushisa lehla laya ku-550~600℃ nesithando somlilo, nesithando somlilo sipholile.
Ukuqina ngaphambi kokwelashwa ≤143HBS, futhi ubulukhuni ngemva kokuthambisa ≤131HBS.
(8) Ukucisha ukucaciswa kwezinga lokushisa elingu-910℃±10℃, ukupholisa nge-10% NaCl brine.
(9) Amandla esivuno esilinganisiwe fy=245Mpa, i-elastic modulus E=206Gpa, isilinganiso sika-Poisson ν=0.3.
(10) Amandla okugunda ama-275~392MPa, amandla okubamba ama-253~500MPa, amandla okukhiqiza angu-275MPa, kanye nokwelulwa okungu-25%.
(11) Izinga lokushisa le-anneal lingama-600-650 degrees kuphela, futhi isikhathi sokubamba ngu-1-2h.

Amasevisi ethu ebha yethu eyindilinga :

1. Uma uthola noma iyiphi inkinga yekhwalithi ngemva kokuthola izimpahla, ungaxhumana nathi, sizokuphatha futhi sikuphendule emahoreni angu-12 

2.Siyibha yefekthri ekhiqiza i-SS Round,amandla okukhiqiza angcono kakhulu ,ukulawula ikhwalithi engcono kakhulu, Isevisi Engcono Kakhulu .

3.Ihlolwe Yisikhungo Sokuhlola se-SGS noma i-ISO

Ukuhlola okungu-4.100% kwe-QC Ngaphambi Kokuthunyelwa.

Uma unombuzo othile Sicela usithinte kusenesikhathi.