Parizvino, mapaipi esimbi anoshandiswa zvakanyanya uye ane marudzi mazhinji. Thermal kuwedzera kabhoni simbi pombi imwe yacho. Iine zvakawanda zvakanakira, asi zvechokwadi haisi pasina chero zvipingamupinyi. Izvi zvinotevera tsananguro yakadzama yezvakanakira uye zvazvakaipira kupisa-yakawedzera simbi mapaipi necarbon steel pombi vagadziri, tichitarisira kukubatsira kunzwisisa chigadzirwa ichi.

Zvakanakira zvekuwedzera kwekushisakabhoni simbi pombi:

Inogona kuparadza chimiro chekugadzira chepombi yesimbi, kunatsiridza saizi yezviyo zvepombi yesimbi inopisa-inokwidziridzwa, kubvisa hurema hwemicrostructure, kuita kupisa-inokwidziridzwa simbi pombi compact muchimiro uye kugadzirisa ma mechanic properties. Kuvandudzika uku kunonyanya kuratidzwa munzira yekutenderedza, kuitira kuti pombi yesimbi inokwidziridzwa haisisina isotropy inoenderana, uye mabhubhu, kutsemuka uye porosity inogadzirwa mukudurura inogona zvakare kusungirirwa pasi pekushanda kwekushisa kwakanyanya uye kudzvanywa kwakanyanya. .

Zvakaipa zvekuwedzera kwekushisakabhoni simbi pombi:

1. Residual stress inokonzerwa nekutonhodza kusina kuenzana. Residual stress inoreva mukati-self-equilibrium stress pasina simba rekunze. Kushushikana kwakasara kwakadaro kuripo mumapombi esimbi anokwidziridzwa emhando dzakasiyana-siyana. Kazhinji, iyo yakakura chikamu chechikamu chesimbi yechikamu, iyo yakanyanya kusara kunetseka. Residual stress is naturally self-phase equilibrium, asi inoramba iine maitiro anoenderana nemaitiro ezvikamu zvesimbi pasi pekuita kwemasimba ekunze. Zvinhu zvakadai sedeformation, kwete-mhirizhonga, kuramba kuneta, nezvimwewo zvinogona kuva nemigumisiro yakaipa.

2. Mushure mekuwedzera kwekupisa, iyo isiri-metallic inclusions (inonyanya kuumbwa ne sulfides uye oxides uye silicates) mu thermal kuwedzera kwesimbi pombi inotsikirirwa mumashizha matete, zvichiita kuti delamination (interlayer). Delamination ichakuvadza zvakanyanya zvimisikidzo zvepombi-inokwidziridzwa simbi pombi pamwe negwara reukobvu, uye kana weld yadzikira, interlaminar kubvaruka kungangoitika. Iyo chidimbu dhizaini nekuda kwewelding shrinkage kazhinji kakati wandei iyo goho point strain uye yakakwira zvakanyanya kupfuura chidimbu dhizaini nekuda kwekuremerwa.