Tsanangudzo yesimbi
Simbi inoreva iron kabhoni alloy ine kabhoni yemukati ye0.0218% ~ 2.11%.Alloy simbi inogona kuwanikwa nekuwedzera Cr, Mo, V, Ni uye zvimwe zvikamu zvealloy musimbi yakajairwa, uye yedu yese mold simbi ndeye alloy simbi.
Pane nzira nhatu huru dzekuchinja zvinhu zvesimbi:
Alloy composition
Carbon: C
Wedzera kuoma kwenyama yakaoma;
Carbide kuumbwa, kunatsiridza kupfeka kusagadzikana;
Deredza kuoma;
Yakaderedzwa solderability
Cr:Cr
Kuvandudza kuoma kwesimbi, kugadzira yakaoma uye yakagadzikana chromium carbide, nekudaro kuvandudza kupfeka kuramba;
Inogona kuvandudza kuoma kwesimbi;
Kana Cr yemukati ichipfuura 12%, inodzivirira corrosion uye inopa yakanaka kutenderera kutenderera
Mo, Mo
Mo isimba rakasimba rekugadzira carbide, kunatsiridza kupfeka kuramba;
Mo> 5% inogona kudzora hasha brittleness inokonzerwa nezvimwe zvinhu zvealloying.
Inopa kuoma kwakatsvuka, simba rekupisa;
Kuvandudza kuoma uye kugadzikana kwehasha
V: V
Inogona kuumba yakakwirira kuomarara carbide, kunatsiridza kupfeka kuramba;
Gadzirisa saizi yesimbi kuti uderedze kupisa kwakanyanya
Kuvandudza simba resimbi, kusimba uye kugadzikana kwekudzikamisa
Nickel: Kwete
Ni inogona kuvandudza kuoma kwesimbi;
Ni anogona kunatsa zviyo
Sarufa (S)
Iyo inowanzovapo musimbi muchimiro cheMnS, iyo inogona kuvandudza kugona kwekucheka kwezvinhu nekupwanya kuenderera kwematrix uye kushatisa kuomarara, corrosion resistance, optical rotation, discharge machining uye etching zvimiro zvezvinhu.
2. Kunyunguduka
Zvakajairika steelmaking process
Electroslag remelting (ESR)
Iyo rough billet inoiswa muchoto che electroslag, uye simba rakasimba rinopfuudzwa kuita kuti choto chibudise kupisa kwakanyanya, kuitira kuti rough billet inonyungudutswa musimbi yakanyungudutswa, inoyerera kuburikidza ne electroslag, uye tsvina inosefa uye inoshambadzirwa iyo electroslag, kuitira kuti uwane mhedzisiro yekucheneswa.Iyo yakazara remelting mwero inokurumidza, asi kumwe kuchena kwakanyanya hakuna kubviswa.
Vacuum arc remelting (VAR)
Muchoto chevacuum, simba remagetsi rinoshandiswa kune embryo yesimbi, pasi pe embryo inotanga kunyunguduka, uye tsvina inoputika kuva gasi uye inoputirwa kure, nokudaro inovandudza kuchena kwesimbi.Uyezve, inosimbiswa kudonha nekudonha, nekukurumidza kusimba kwekusimbisa, uye matishu inova yakaoma kwazvo.Iyo inoratidzirwa nekunyatso kubviswa kwetsvina, asi iyo yakazara remelting rate inononoka.
3. Kurapa kwekupisa
Kupisa kwesimbi kunoreva maitiro ekupisa uye kutonhora, uye kushandura zvinhu zvesimbi nekudzora kupisa kwekupisa, kubata nguva uye kutonhora kwekumhanya kwesimbi, kuitira kuti isangane nezvinodiwa zvekugadzirisa kana kushandiswa.
Iwo makuru ekupisa kupisa maitiro ndeaya: annealing, quenching, tempering.
Die simbi inorongwa maererano nekushandiswa
1. Kutonhora kushanda die simbi
Cold work die simbi inonyanya kushandiswa kugadzira mold yekutsikirira inotonhora workpiece.Zvakadai sekutonhora kwekurova kufa, kutonhora kutsika kufa, kutonhora kudhirowa kufa, kutsika kufa, kutonhora kwekuwedzera kufa, shinda kudzvanya kufa uye hupfu kudzvanya kufa.Masimbi anotonhora anotonhora kubva kune akasiyana kabhoni turusi simbi, alloy tool simbi, high speed tool simbi kusvika paupfu high speed tool simbi uye poda high alloy die steels.
2. Kupisa basa kufa simbi
Kupisa basa die simbi inonyanya kushandiswa kugadzira inofa yekumanikidza machining yeworkpiece pasi pekupisa kwakanyanya.Zvakadai sokupisa kunopisa kufa, kupisa extrusion kufa, kufa kukandira kufa, kupisa kunopisa kufa.Iyo inowanzoshandiswa inopisa basa die simbi ndeye: yepakati uye yakakwirira kabhoni alloy die steel neCr, W, Mo, V uye mamwe alloy elements;High alloy austenitic heat resistant die simbi dzimwe nguva inoshandiswa kugadzira inopisa basa die simbi ine zvakakosha zvinodiwa.
3. Plastic mold steel
Nekuda kwemhando dzakasiyana-siyana dzepurasitiki, zvinodiwa zvezvigadzirwa zvepurasitiki zvakasiyanawo zvakanyanya, kugadzirwa kwepurasitiki mold zvinhu zvakare kunoisa mberi zvakasiyana siyana zvinodiwa.Naizvozvo, nyika zhinji dzakasimukira dzakasimukira dzakagadzira huwandu hwakawanda hwepurasitiki mold simbi dzakatevedzana.Kusanganisira kabhoni structural simbi, carburizing epurasitiki die simbi, pre-kuomesa epurasitiki die simbi, kuchembera kuomesa epurasitiki die simbi, ngura isingagadzike epurasitiki die simbi, nyore kucheka mapurasitiki die simbi, kuomesa kuomesa epurasitiki die simbi, martensitic kuchembera simbi uye girazi kupukuta epurasitiki die simbi. .
Nguva yekutumira: Mar-21-2022