The main beam of thesingle-girder bridge cranehaina kuenzana, iyo inokanganisa zvakananga kunotevera kugadzirisa. Kutanga, isu tichabata nekudzika kwedanda tisati taenderera kune inotevera maitiro. Ipapo iyo sandblasting uye plating nguva ichaita kuti chigadzirwa chive chichena uye chisina mhosva. Nekudaro, macranes emabhiriji ane akasiyana mamodheru uye ma paramita ane akasiyana maitiro ematanda avo makuru. .
Isu tinofanirwa kutanga tanzwisisa mapoinzi maviri anotevera nezvechigadzirwa:
1. Ndezvipi zvinhu uye maumbirwo ebhodhi anodiwa kuti agadzirise danda guru remuchina webhiriji (mapuranga, mipumburu, zvikamu zvakasiyana-siyana, vatongi)?
2. Tichifunga nezvehukuru hwedanda guru uye pamusoro peiyo-girder crane (zvichienderana nechigadzirwa, maitiro akasiyana e flatness anogona kusarudzwa kuti apedze mutengo uye mashandiro ekutonga), ndeupi rudzi rwekuyera mhedzisiro uye zvinodiwa zvekushandisa zvinofanirwa kuwanikwa danda guru?
Parizvino, kune nzira mbiri dzekubata nekudzika kweiyo huru danda re crane:
1. Kushandiswa kwehunyanzvi hwekugadzira michina ndeyekubvisa iyo yakakwenenzverwa convex zvikamu kuburikidza nekucheka uye deformation yepurasitiki yepasi pezvinhu kuti uwane yakatsetseka pamusoro pekupukuta nzira, uye kazhinji inoshandisa matombo ekukuya, kupukuta fluid, nezvimwe.
2. Kemikari polishing. Kemikari polishing ndeyekuita kuti iyo microscopic convex zvikamu zvepanzvimbo convexity yedata inyunguduke muchemikari yepakati, nekudaro kuwana nzvimbo yakatsetseka. Kubatsira kukuru kweiyi nzira ndeyekuti yakaoma workpieces inogona kukwenenzverwa pasina midziyo yakaoma, uye mahwendefa mazhinji esimbi anogona kukwenenzverwa panguva imwe chete. Dambudziko rekuporiswa kwemakemikari ndiko kushandiswa kwemvura yekupolisha uye zvigadzirwa. Kushata kwepamusoro kunowanikwa nemakemikari polishing kazhinji 10μm.
