1. Casting yog dab tsi
Cov hlau ua kua yog poured rau hauv pwm kab noj hniav nrog ib tug zoo haum rau ib feem, thiab tom qab nws solidifies, ib feem cov khoom uas muaj ib tug tej yam zoo li, qhov loj thiab nto zoo, uas yog hu ua casting. Peb lub ntsiab tseem ceeb: alloy, qauv, pouring thiab solidification. Qhov txiaj ntsig loj tshaj plaws: qhov nyuaj tuaj yeem tsim tau.
2. Kev loj hlob ntawm casting
Kev tsim khoom pib hauv xyoo 1930s siv cov tshuab pneumatic thiab cov txheej txheem av nplaum av.
Cement xuab zeb hom tau tshwm sim hauv xyoo 1933
Nyob rau hauv 1944, lub txias hard coated resin xuab zeb plhaub hom tshwm sim
CO2 hardened dej iav xuab zeb pwm tshwm sim hauv xyoo 1947
Xyoo 1955, cov txheej txheem thermal txheej resin xuab zeb hom tau tshwm sim
Nyob rau hauv 1958, furan resin tsis muaj ci xuab zeb pwm tshwm sim
Xyoo 1967, cov cement ntws xuab zeb tuaj yeem tshwm sim
Xyoo 1968, cov iav dej nrog cov organic hardener tshwm sim
Hauv 50 xyoo dhau los, cov txheej txheem tshiab ntawm kev ua cov pwm pwm los ntawm kev siv lub cev, xws li: magnetic pellet molding, nqus sealing molding txoj kev, ploj ua npuas ncauj molding, thiab lwm yam. Ntau txoj kev casting raws li cov pwm hlau. Xws li centrifugal casting, siab siab casting, tsis tshua muaj siab casting, kua extrusion, thiab lwm yam.
3. Cov yam ntxwv ntawm casting
A. dav adaptability thiab yooj. Tag nrho cov khoom siv hlau. Casting tsis txwv los ntawm qhov hnyav, qhov loj thiab cov duab ntawm ib feem. Qhov hnyav tuaj yeem yog los ntawm ob peb grams mus rau ntau pua tons, phab ntsa tuab tuaj yeem yog los ntawm 0.3mm mus rau 1m, thiab cov duab tuaj yeem yog qhov nyuaj heev.
B. Feem ntau ntawm cov khoom siv raw thiab cov cuab yeej siv tau siv dav thiab pheej yig, xws li cov hlau thiab cov xuab zeb.
C. Castings tuaj yeem txhim kho qhov tseeb qhov tseeb thiab qhov zoo ntawm cov castings los ntawm kev siv tshuab casting, kom cov khoom tuaj yeem txiav tsawg dua thiab tsis muaj kev txiav.
Post lub sij hawm: Aug-11-2022
