Bonding pombi majoini, apo mativi maviri kana anopfuura anoshandisa musanganiswa wemajoini akasungwa, kana anoreva zvikamu zviviri kana kupfuura zvakabatana nemajoini ewelding, kusanganisira welds, fusion zone uye kupisa kunokanganisa nzvimbo.

Welded majoini zone

Mushure mekukodzera simbi uye yekuzadza simbi inonyungudika nekukurumidza Youyi yakaumbwa mushure mekutonhora uye kusimba.Weld kubva kune yakakandwa chimiro cheiyo mvura simbi makristasi, coarse zviyo, kupatsanurwa, sangano harina gobvu.Nekudaro, nekuda kwedziva diki re weld, kutonhora nekukurumidza, kudzora kwakasimba kwemakemikari anoumbwa, kabhoni, sarufa, phosphorus zvakaderera, asi zvakare nekugadzirisa kemikari yeweld alloying, ine humwe huwandu hwealloying element, saka iyo kuita weld simbi kwete dambudziko guru, kusangana nekuita zvinodiwa, kunyanya simba nyore kusvika.

Fusion zone

Melting zone uye chikamu cheshanduko pakati penzvimbo isina-kunyungudika.Kemikari yakaumbwa yefusion zone isina kuenzana matishu akakora anowanzo kukora akaomarara tishu kana kupisa nyama.Kuitwa kwemajoini akasungwa kazhinji ndiko kwakaipisisa.Fusion zone uye kupisa kunokanganisa nzvimbo yenzvimbo yakanyanyisa kupisa (kana quench zone) ndiyo yakaipisisa yemakinari emagetsi majoini akashongedzwa ezvikamu zvisina simba, zvinokanganisa zvakanyanya kunaka kwemajoini akasungwa.

Kupisa kwakakanganiswa nzvimbo

Heated high-temperature weld zone microstructure uye zvivakwa zvinokonzerwa nekuchinja mudunhu.Yakadzika-kabhoni simbi inopisa-yakakanganiswa nzvimbo inogona kukamurwa kuita nzvimbo dzinopisa, uye chikamu chechikamu chekushandura dunhu normalizing nzvimbo.

(1) iyo yakanyanya kupisa tembiricha superheat zone nzvimbo pamusoro pe1100℃, tsanga dzakakasharara, uye kunyange nyama inopisa, inonzi nzvimbo inopisa zvikuru.Ductility uye kuoma kwakadzikira zvakanyanya kupisa nzvimbo, iyo inopisa yakakanganisika nzvimbo ndiyo yakaipisisa chikamu chemichina zvinhu.

(2) Iyo yakanyanya kupisa tembiricha kubva kune yakajairika zone nzvimbo Ac3 kusvika 1100℃, iyo mhepo-yakatonhodzwa welding tsanga dzinoita diki mushure menormalizing sangano inonzi normalizing area.Zvirinani zvemakanika zvimiro zveiyo normalizing zone.

3Iyi nharaunda zviyo kusaenzana kuita kwakashata zvakare.Panguva yekuisa welding, welding welding nzira kakawanda.Iyo yakanyanya tembiricha yekupisa yakakwenenzverwa simbi inodziya munharaunda matrix uye muviri wekuzadza yunifomu yesimbi yakanyungudutswa ichiomesa fomu yakanyungudutswa.Zvichienderana neiyo microstructure uye zvivakwa zvezvikamu zvakasiyana zvemajoini akasungwa anogona kukamurwa kuita zvikamu zvitatu.