Metal Heat Treatment

Iyo simbi yekupisa kurapwa ndeyekupisa simbi kana alloy workpiece kune yakakodzera tembiricha mune imwe svikiro, uye mushure mekuchengetedza tembiricha kweimwe nguva yenguva, inotonhodzwa mumidhiya yakasiyana nekumhanya kwakasiyana, nekushandura nzvimbo kana mukati zvinhu zvesimbi. Nzira ye microstructural chimiro chekudzora kushanda kwayo.cnc machining chikamu

Main category
Metal kupisa kurapwa maitiro anogona kukamurwa kuita zvikamu zvitatu: yakazara kupisa kurapwa, pamusoro kupisa kurapwa uye kemikari kupisa kurapwa. Zvichienderana nekudziya kwepakati, tembiricha yekudziya uye kutonhora nzira, chikamu chega chega chinogona kukamurwa kuita akati wandei akasiyana maitiro ekurapa kupisa. Iyo simbi imwe chete inoshandisa nzira dzakasiyana dzekupisa kupisa kuwana akasiyana microstructures uye nekudaro akasiyana zvivakwa. Simbi ndiyo inonyanya kushandiswa simbi muindastiri, uye iyo simbi microstructure ndiyo yakanyanya kuoma, saka kune akawanda marudzi esimbi kupisa kupisa maitiro.ndarira cnc machining chikamu

Hunhu
Metal kupisa kurapwa ndeimwe yeakakosha maitiro mukugadzira michina. Kuenzaniswa nedzimwe nzira dzekugadzirisa, kupisa kupisa kazhinji hakuchinji chimiro uye yakazara makemikari kuumbwa kweiyo workpiece, asi inoshandura iyo microstructure mukati meiyo workpiece kana kushandura kemikari yepamusoro peiyo workpiece. , kupa kana kuvandudza kushanda kweworkpiece. Iyo inoratidzirwa nekuvandudzika kwemukati hunhu hweiyo workpiece, iyo kazhinji isingaonekwe nemeso. Naizvozvo, inzira yakakosha mukugadzira michina uye chikamu chakakosha chekutarisira kwemhando.

Kuti uite simbi workpiece ine inodiwa mechanical properties, zvinhu zvemuviri uye chemikemikari zvinhu, kunze kwekugadzirisa kusarudzwa kwezvinhu uye maitiro akasiyana-siyana ekugadzira, maitiro ekurapa kupisa anowanzokosha. Simbi ndiyo inonyanya kushandiswa zvinhu muindasitiri yemuchina. Iyo microstructure yesimbi yakaoma uye inogona kudzorwa nekupisa kurapwa. Nokudaro, kurapwa kwekupisa kwesimbi ndiyo inonyanya kushandiswa kwesimbi inopisa kupisa. Pamusoro pezvo, aruminiyamu, mhangura, magnesium, titanium, nezvimwe zvakadaro zvinogona kugadziridzwa nekurapa kwekupisa kuti uwane akasiyana mashandiro emuchina, zvimiro zvemuviri, uye makemikari zvinhu.

Basic process

Iyo yese kupisa kurapwa isimbi kupisa kupisa maitiro ayo anopisa iyo workpiece yese uye yobva yaitonhodza nekumhanya kwakakodzera kuti ichinje yayo yese mechanical properties. Kupisa kwekupisa kwesimbi kune maitiro mana ekutanga: annealing, normalizing, quenching uye tempering.chikamu chepurasitiki

Anealing ndeyekupisa iyo workpiece kune tembiricha yakakodzera, uchishandisa dzakasiyana nguva dzekubata zvinoenderana nechinhu uye saizi yebasa rekushanda, uyezve kutonhora zvishoma nezvishoma, kuitira kuunza chimiro chemukati chesimbi kune kana pedyo nekuenzana, kana kusunungura iyo. kushushikana kwemukati kunokonzerwa nemaitiro apfuura. Wana kuita kwakanaka kwemaitiro uye kuita, kana gadzirira kumwe kudzimwa.

Normalizing kana normalizing ndiko kutonhorera workpiece kune yakakodzera tembiricha uye wozoitonhodza mumhepo. Mhedzisiro ye normalizing yakafanana neannealing, asi mhedzisiro chimiro chakanakisa, icho chinowanzo shandiswa kuvandudza kucheka mashandiro emidziyo, uye dzimwe nguva inoshandiswa kune zvimwe zvinodiwa. Izvo zvikamu zvisina kukwirira zvinoshandiswa seyekupedzisira kupisa kupisa.

Kudzima ndiko kukurumidza kutonhodza iyo workpiece mushure mekudziya uye kuibata munzvimbo yekudzima senge mvura, mafuta kana imwe inorganic munyu mhinduro kana organic aqueous solution. Mushure mekudzima, simbi inova yakaoma asi inova brittle panguva imwe chete.

Kuti uderedze brittleness yesimbi, simbi yakadzimwa inovharwa kwenguva yakareba pane yakakodzera tembiricha pamusoro pekamuri tembiricha uye pazasi 650 ° C, yobva yatonhodzwa. Iyi nzira inonzi tempering. Anealing, normalizing, quenching and tempering ndidzo "moto ina" mukupisa kwese kwese. Pakati pavo, kudzima uye kupisa kwakabatana zvakanyanya, uye kunowanzoshandiswa pamwe chete, kunokosha.