Iyo Welding Kurasika Phenomenon yeAluminium Shell Inofa Kukandira Mold

Mumakore achangopfuura, nekuvandudzwa kweindasitiri yemotokari yenyika yangu, kudiwa kwealuminium-magnesium alloy die-casting yemotokari kwakawedzera zvishoma nezvishoma. Naizvozvo, tichifunga nezve hukuru-hukuru, hushoma-mutengo, uye hunobudirira kugadzirwa kwealloy kufa-casting, uku kupfupisa nguva yekuchengetedza mold, kusimudzira uye kuunzwa kwekupisa kutsva sechinhu chekuumba, optimization yechimiro uye kuita kweiyo mold. iyo mold zvinhu kuburikidza nekupisa kurapwa, uye kuwedzera kwehupenyu hwehutu kuburikidza pamusoro kurapwa dzatowanda The material is in the kufa kukanda Process.

Nguva yekuzadza yegomba inowanzoita 0.1s kana zvishoma, uye kumhanya kweiyo alloy inopfuura nepagedhi inenge 40-60m/s, uye vamwe vanotosvika 200m/s. Iyo yekumanikidza simba panguva yekusimba kwesimbi kazhinji inenge 40 kusvika 120 MPa. Kana iyo aruminiyamu alloy goko rikafa-kukanda, tembiricha yebasa reiyo die-casting mold inowanzokwira kusvika pa500 ~ 600. Paunenge uchigadzira zvidimbu zvidiki zvealuminium alloy shell, iyo die-casting-solidification cycle nguva inenge 3 ~ 6s, uye mahombe ealuminium alloy shell parts ari pasi pe90s.

Pakutanga kwega-fa-casting cycle, mold cavity inofanira kukurumidza kupisa nepamusoro-tembiricha yakanyunguduka, uye compressive thermal stress inogadzirwa panzvimbo yekushanda; mushure mekufa-kukandira, lubricant inopfapfaidzwa muforoma yekudzima, saka kushushikana kwekunetseka kunogadzirwa pamusoro. Pasi pechiito chekuchinja uku kushushikana kwekupisa, kupisa kuneta madiki madiki madiki anogadzirwa pamusoro peiyo mold. Nekuwedzera kwehuwandu hwemafa-casting cycles, ma micro-cracks anokura nekukurumidza, uye mamwe macentripetal parts anowedzera kuita mitswe. Kucheneswa nekuora kwegomba remuumbi negoridhe rakasanganiswa panguva imwechete yakatenderedza kuputika kuchawedzera kukuvadza pamusoro peiyo mold, uye pakupedzisira kutungamirira kukutanga kuputika uye zvimedu zvehutu.

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