Chidule cha Valve Casting

1. Kodi kuponyera ndi chiyani

Chitsulo chamadzimadzi chimatsanuliridwa mu nkhungu yokhala ndi mawonekedwe oyenerera gawolo, ndipo itatha kulimba, gawo la mankhwala omwe ali ndi mawonekedwe enaake, kukula kwake ndi khalidwe lapamwamba limapezedwa, lomwe limatchedwa kuponyera.Zinthu zitatu zazikulu: aloyi, kutsanzira, kutsanulira ndi kulimbitsa.Ubwino waukulu: magawo ovuta amatha kupangidwa.

2. Kukula kwa kuponyera

Kupanga kunayamba m'ma 1930 pogwiritsa ntchito makina a pneumatic ndi njira za mchenga wadongo.

Mtundu wa mchenga wa simenti unawonekera mu 1933

Mu 1944, mtundu wa chigoba cha mchenga wowuma wozizira kwambiri unawonekera

CO2 yowumitsa galasi lamadzi amchenga nkhungu idawonekera mu 1947

Mu 1955, mtundu wa chigoba cha mchenga wa resin udawonekera

Mu 1958, nkhungu ya mchenga wa furan resin no-bake idawonekera

Mu 1967, nkhungu ya mchenga wa simenti idawonekera

Mu 1968, galasi lamadzi lokhala ndi organic hardner linawonekera

M'zaka 50 zapitazi, njira zatsopano zopangira zojambulajambula pogwiritsa ntchito njira zakuthupi, monga: maginito opangira maginito, kusindikiza kwa vacuum kusindikiza, kutayika kwa thovu, etc. Njira zosiyanasiyana zoponyera zochokera kuzitsulo zachitsulo.Monga kuponyera kwa centrifugal, kuponyera kwakukulu, kuponyera otsika, kutulutsa kwamadzi, etc.

3. Mawonekedwe akuponya

A. Kusinthasintha kwakukulu ndi kusinthasintha.Zinthu zonse zachitsulo.Kuponya sikuli malire ndi kulemera, kukula ndi mawonekedwe a gawolo.Kulemera kwake kungakhale kuchokera ku magalamu angapo mpaka matani mazana, makulidwe a khoma akhoza kukhala kuchokera ku 0.3mm mpaka 1m, ndipo mawonekedwewo angakhale ovuta kwambiri.

B. Zambiri mwazinthu zopangira ndi zowonjezera zomwe zimagwiritsidwa ntchito ndizopezeka kwambiri komanso zotsika mtengo, monga zitsulo zotsalira ndi mchenga.

C. Castings akhoza kusintha kulondola kwa dimensional ndi khalidwe lapamwamba la castings kudzera mwaukadaulo wapamwamba woponya, kotero kuti mbali zitha kudulidwa mochepa komanso popanda kudula.