Ukubuka Konke Kokuphonswa Kwevalvu

1. Kuyini ukuphonsa

Insimbi ewuketshezi ithululelwa emgodini wesikhunta onesimo esifanele ingxenye, futhi ngemva kokuba iqine, kutholakala umkhiqizo onesimo esithile, usayizi kanye nekhwalithi yobuso, okubizwa ngokuthi ukuphonswa. Izinto ezintathu eziyinhloko: i-alloy, ukumodela, ukuthulula kanye nokuqina. Inzuzo enkulu: izingxenye eziyinkimbinkimbi zingakhiwa.

2. Ukuthuthukiswa kokuphonsa

Ukukhiqizwa kwaqala ngawo-1930 kusetshenziswa imishini yomoya kanye nezinqubo zesihlabathi sobumba zokwenziwa.

Uhlobo lwesihlabathi sikasimende lwavela ngo-1933

Ngo-1944, kwavela uhlobo lwegobolondo lesihlabathi se-resin eliqinile elimbozwe nge-coated.

Isikhunta sesihlabathi sengilazi yamanzi eqinile i-CO2 savela ngo-1947

Ngo-1955, kwavela uhlobo lwegobolondo lesihlabathi se-resin elimbozwe ngokushisa.

Ngo-1958, kwavela isikhunta sesihlabathi esingabhakiwe se-furan resin

Ngo-1967, kwavela isikhunta sesihlabathi sokugeleza kwesamente

Ngo-1968, kwavela ingilazi yamanzi ene-organic hardener

Eminyakeni engama-50 edlule, izindlela ezintsha zokwenza isikhunta sokukhipha ngokusebenzisa izindlela ezibonakalayo, njenge: ukubumba i-magnetic pellet, indlela yokubumba i-vacuum sealing, ukubumba i-foam elahlekile, njll. Izindlela ezahlukene zokukhipha ezisekelwe ezikhumbeni zensimbi. Njengokubumba i-centrifugal, ukubumba i-high pressure, ukubumba i-low pressure, ukukhuphula uketshezi, njll.

3. Izici zokusakaza

A. Ukuzivumelanisa nezimo okubanzi kanye nokuguquguquka. Yonke imikhiqizo yezinto zensimbi. Ukubumba akunqunyelwe yisisindo, usayizi kanye nokuma kwengxenye. Isisindo singaba kusukela kumagremu ambalwa kuya kumakhulu amathani, ubukhulu bodonga bungasukela ku-0.3mm kuya ku-1m, futhi ukuma kungaba izingxenye eziyinkimbinkimbi kakhulu.

B. Iningi lezinto ezingavuthiwe neziwusizo ezisetshenziswayo zitholakala kabanzi futhi zishibhile, njengensimbi elahliwe nesihlabathi.

C. Ama-Casting angathuthukisa ukunemba kobukhulu kanye nekhwalithi yobuso be-castings ngokusebenzisa ubuchwepheshe obuthuthukisiwe boku-cast, ukuze izingxenye zikwazi ukunqunywa kancane futhi ngaphandle kokusika.