"Casting nplaum xuab zeb tov" nyob rau hauv poob pwm casting
Nyob rau hauv tus txheej txheem ntawm poob pwm casting, qhov teeb meem casting xuab zeb feem ntau tshwm sim, feem ntau yog nyob rau hauv daim ntawv ntawm mechanical xuab zeb thiab tshuaj xuab zeb. Mechanical av nplaum yog hais txog cov xuab zeb thiab hlau sib xyaw ua ke rau saum npoo ntawm cov casting, thaum cov av nplaum yog cov khoom siv uas tsis tshua muaj solubility vim cov tshuaj tiv thaiv ntawm cov kua hlau thiab txheej. Hauv ob qho xwm txheej, peb tuaj yeem siv cov kev tiv thaiv hauv qab no:
Rau cov neeg kho tshuab av nplaum xuab zeb, peb tuaj yeem txo qhov permeability ntawm cov xim los ntawm kev kho cov txheej txheem txheej thiab ua kom qhov sib npaug ntawm cov nplua aggregate, yog li txo qhov sib xyaw ntawm cov xuab zeb. Nyob rau tib lub sijhawm, cov txheej txheem kev ua tau zoo yog ua kom zoo los xyuas kom meej tias cov txheej txheej txheej yog ib yam thiab muaj lub zog txaus los tiv thaiv qhov yaig ntawm cov kua hlau.
Rau cov av nplaum tshuaj, peb yuav tsum xaiv qhov tsim nyog refractory aggregate raws li qhov xwm txheej ntawm cov hlau casting los txhim kho cov tshuaj tiv thaiv ntawm cov txheej txheem. Tsis tas li ntawd, cov txheej txheem kev sib xyaw ntawm cov txheej txheej yog nruj me ntsis tswj kom tsis txhob muaj huab cua los ntawm kev koom tes, thiab xyuas kom meej tias cov txheej txheej txheej tsis muaj qhov pores thiab tawg. Yog tias tsim nyog, ib qho txheej txheem txheej txheej txheej tuaj yeem siv los ziab cov xim kom txaus thiab txhim kho nws cov qauv tag nrho.
