Kuongorora kweValve Kukanda

1. Chii chinokanda

Iyo simbi yemvura yakadururwa mune imwe cavity ine chimiro chakakodzera chikamu, uye mushure mekunge yaipisa, chigadzirwa chimwe nechimwe chimiro, saizi uye chinoda kuwanikwa, icho chinonzi casting. Zvinhu zvitatu zvikuru: Alloy, modelling, kudurura uye kusimbisa. Iyo yakakura mukana: zvikamu zvakaoma kunzwisisa zvinogona kuumbwa.

2. Kubudirira kwekukanda

Kugadzirwa kwakatanga mu1930s uchishandisa mneumatic michina uye nzvimbo yekugadzira jecha maitiro.

SEOMINEN SAND TYPE yakaonekwa muna 1933

Muna 1944, iyo inotonhora yakaoma yakagadziriswa resin jecha shell mhando yakaonekwa

CO2 Yakaomeswa Mvura Girazi Sand Mol MdLED muna 1947

Muna 1955, iyo inobata yekubatanidza resin jecha shell mhando yakaonekwa

Muna 1958, iyo furan resin no-bake jecha mold yakaonekwa

Muna 1967, iyo siment inoyerera jecha mold yakaonekwa

Muna 1968, girazi remvura rine organic hardener rakaonekwa

Mumakore makumi mashanu apfuura, nzira nyowani dzekukanda molds nenzira dzenyama, dzakadai se: magnetic pellolling kuumbwa nzira, etc.-dzakasiyana casting nzira dzinoenderana nesimbi molds. Senge centrifugal casting, yakanyanya kumanikidza kukanda, kudzvinyirira kudzvinyirira, mvura yekuwedzera, nezvimwe.

3. Zvimiro zvekukanda

A. YAKABVUNZWA KUSHANDISA UYE KUPEDZESA. Zvese zveSimbi zvigadzirwa zvigadzirwa. Kukanda haina kuganhurirwa nehuremu, saizi uye chimiro chechikamu. Iyo uremu inogona kubva kune mashoma magiramu kumazana ematani, kurira kwemadziro kunogona kubva 0.3mm kusvika 1m, uye chimiro chinogona kuve chakaoma zvikamu.

B. Zvakawanda zvezvishandiso zvekushandisa uye zvezvinhu zvebetsero zvinoshandiswa zvinowonekwa zvakanyanya uye zvakachipa, zvakadai se simbi nejecha.

C. Castings inogona kuvandudza kurongeka kwemukati uye mamiriro ekukwirisa kuburikidza neyakagara kukanda tekinoroji, kuti zvikamu zvive zvichitemwa zvishoma uye pasina kutemwa.