Uyini umehluko phakathi kwesikhunta somjovo kanye nesikhunta esibulalayo?

Uma kukhulunywa ngesikhunta, abantu bavame ukuhlobanisa isikhunta esibulalayoimijovo isikhunta, kodwa empeleni umehluko phakathi kwazo usabalulekile kakhulu. Njengoba i-die casting iyinqubo yokugcwalisa isikhunta sensimbi ngensimbi ewuketshezi noma engama-semi-liquid ngenani eliphakeme kakhulu futhi iqiniswe ngaphansi kwengcindezi ukuze uthole ukukhishwa kwe-die. Ngokuvamile kusetshenziswa ensimbi, kuyilapho ukubumba umjovo kuwukubumba umjovo, indlela eyinhloko yokubunjwa kwe-thermoplastic, i-thermoplastic yenziwe nge-thermoplastic resin, engashiswa ngokuphindaphindiwe ukuze ithambe futhi ipholiswe ukuze iqine, inqubo yomzimba, ebuyiselwa emuva, okusho ukuthi ingaba esetshenziswa njengepulasitiki egaywe kabusha.

Umehluko phakathi kwesikhunta se-die-casting kanye nezibunjwa zepulasitiki.

1. Umfutho womjovo wezibumbe eziwuphonsa ngokufa uphezulu, ngakho-ke izidingo zesifanekiso ziwugqinsi ukuvimbela ukuwohloka.

I-2.Isango lesikhunta se-die-casting lihlukile kunesikhunta somjovo, esidinga ukucindezela okukhulu ukwenza ikhoni yokuphambukisa ukudiliza ukugeleza kwezinto ezibonakalayo.

I-3. Isikhunta se-Die-casting asidingi ukucisha i-die kernel, ngoba izinga lokushisa ngaphakathi kwe-mold cavity lingaphezu kwama-700 degrees lapho i-die-casting, ngakho-ke ukubunjwa ngakunye kulingana nokucisha kanye, i-mold cavity izoba nzima futhi ibe nzima, kuyilapho. isikhunta esijwayelekile sokujova kufanele sicinywe ku-HRC52 noma ngaphezulu.

4.Isikhunta se-Die-casting ngokuvamile singena ekwelashweni kwe-nitriding, ukuvimbela ingxube enamathelayo yengxubevange.

5.Ngokujwayelekile isikhunta se-die-casting siyagqwala, indawo engaphandle ngokuvamile iwukwelashwa okuluhlaza okwesibhakabhaka.

I-6.Uma kuqhathaniswa nokubunjwa komjovo, isikhunta se-die-casting sinemvume enkulu yezingxenye ezihambayo (njenge-slider core), ngoba izinga lokushisa eliphezulu lenqubo yokufa lizobangela ukwanda kokushisa. Uma imvume incane kakhulu izodala ukuthi isikhunta sibambe.

7. Indawo ehlukanisayo yesikhutha esinezidingo eziphakeme, ngoba ingxubevange ye-alloy liquidity ingcono kakhulu kunepulasitiki, izinga lokushisa eliphezulu kanye nokugeleza kwempahla yokucindezela okukhulu okuvela endaweni ehlukanisayo kuzondiza kuphume kuyingozi kakhulu.

8. Isikhunta sokujova ngokuvamile sincike kumaphini wokukhipa, izindawo zokuhlukanisa, njll. zingaphelelwa amandla, isikhunta se-die-casting kufanele sivule ama-exhaust grooves kanye nokuqoqwa kwezikhwama ze-slag (ukuqoqa ikhanda lempahla ebandayo).

9. Ukubumba okungaguquki, isivinini sokujova isikhunta sokufa, ingxenye yokucindezela komjovo. Izibunjwa zepulasitiki zivame ukujovwa ezingxenyeni eziningana, zibambe ukucindezela.

10. Isikhunta se-Die-casting sesikhunta sepuleti ezimbili kanye isikhunta esivulekile, isikhunta seplastiki isakhiwo esihlukile somkhiqizo akufani.

Ngaphezu kwalokho, isikhunta sepulasitiki kanye nesikhunta se-die-casting ekukhiqizeni insimbi sihlukile; isikhunta sepulasitiki ngokuvamile sisetshenziswa S136 718 NAK80, T8, T10 nezinye insimbi, kuyilapho isikhunta die-casting kusetshenziswa ikakhulukazi 3Cr2, SKD61, H13 enjalo insimbi ukumelana nokushisa.