Manaʻo 1: Hoʻomaka i nā pilikia maʻamau me ka emi ʻana i ka wā o ke kaʻina extrusion o ka extruder:
I ka hana extrusion o nā kiʻi alumini, ʻike ʻia nā hemahema i ʻike ʻia ʻo shrinkage i ka huahana semi-finished ma hope o ka ʻoki ʻana i ke poʻo a me ka huelo ma hope o ka nānā ʻana i ka etching alkali. ʻAʻole kūpono nā waiwai mechanical o nā profile alumini i loaʻa i kēia ʻano i nā koi, e hōʻike ana i nā pilikia palekana.
I ka manawa like, i ka wā e hoʻopili ʻia ai nā profiles alumini alumini i ka mālama ʻana i ka ʻili a i ʻole ka hoʻohuli ʻana i ka hoʻololi ʻana, ʻo ka loaʻa ʻana o kēia hemahema e hoʻopau i ka hoʻomau o loko o ka mea, e hoʻopilikia i ka ʻili a me ka hoʻopau ʻana. I nā hihia koʻikoʻi, e hoʻopau ʻia nā māka huna a hōʻino paha i ka mea hoʻohuli a me nā pōʻino ʻē aʻe, he pilikia maʻamau kēia i ka hana ʻana. Ma ʻaneʻi, ʻike pōkole kēia ʻatikala i nā kumu o ka hoʻokumu ʻana o ka hoʻohaʻahaʻa ʻana i ka ʻike alumini a me nā ala e hoʻopau ai.
Helu 2: ʻO ka hoʻokaʻawale ʻana o ka hoʻohaʻahaʻa ʻana i nā profile alumini extruded e nā extruders: hollow shrinkage a me annular shrinkage:
1) Hoʻemi ʻia: Hoʻokumu ʻia kahi lua i waenakonu o ka hope o ka huelo o nā profile extruded a me nā kaola. Hōʻike ʻia ka ʻāpana keʻa ma ke ʻano he puka me nā ʻaoʻao a i ʻole he puka me nā ʻaoʻao i hoʻopiha ʻia me nā mea haumia ʻē aʻe. ʻO ka ʻaoʻao lōʻihi he cone ʻano hoʻoheheʻe, ʻo ka wēlau o ka funnel ke alo i ka ʻaoʻao o ke kahe metala. Ka mea nui i loko o ka pahu hoʻokahi-puka mokulele make extrusion, o ka oi aku ma ka huelo o nā profiles extruded me liʻiliʻi extrusion coefficients, nui huahana anawaena, mānoanoa pā, a aila-pahu extrusion gaskets.
2) Ka emi ʻana o ka Annular: ʻO nā ʻaoʻao ʻelua o ka extrusion shunt molded product, ʻoi aku ka nui o ke poʻo, he mau apo hoʻopau ʻole a i ʻole arcs, a ʻoi aku ka maopopo o ke ʻano o ka crescent ma nā ʻaoʻao ʻelua o ka laina kuʻi. ʻO ka hōʻemi annular o kēlā me kēia huahana puka he symmetrical.
ʻO ke kumu o ka hoʻokumu ʻia ʻana o ka shrinkage: ʻO ke kūlana mechanical no ka hoʻokumu ʻana i ka shrinkage ʻo ia ka wā e pau ai ke kahua advection a hoʻokokoke mālie ka gasket extrusion i ka make, hoʻonui ka extrusion a hoʻohua i kahi kaomi dN ma ka ʻaoʻao ʻaoʻao o ka pahu extrusion. Keia ikaika me ka friction force dT cylinder, i ka wā i luku ʻia ai ke kūlana kaulike dN cylinder ≥ dT pad, ʻo ka metala e kū ana a puni ka wahi i hoʻokuʻu ʻia e kahe i hope ma ka ʻaoʻao i waenakonu o ka blank, e hana ana i kahi emi.
Helu 3: He aha nā kūlana extrusion e hoʻemi ai i ka extruder:
1. Ua waiho pōkole loa nā mea koena extrusion
2. He oily a haumia paha ka gasket extrusion
3. ʻAʻole maʻemaʻe ka ʻili o ka ingot a i ʻole ka hulu hipa
4. ʻAʻole kū ka lōʻihi o ka ʻoki ʻia o ka huahana i nā lula
5. ʻAʻole hiki ke hoʻomanawanui ʻia ka uhi o ka cylinder extrusion
6. Piʻi koke ka wikiwiki extrusion.
Helu 4: Nā ala e hoʻopau ai i ka emi ʻana i hana ʻia e nā mīkini extrusion aluminika a me nā ana e hōʻemi a pale i ka hoʻokumu ʻana o ka emi ʻana:
1. E hahai pono i na rula ka'ina hana e oki a pa'i i ka oi, ike i ke poo a me ka huelo, e malama i ke kapa o ka extrusion cylinder paa, papa i ka aila extrusion gaskets, e hoemi i ka wela o ke kookoo alumini ma mua o ka extrusion, a me ka hoohana kūikawā convex gaskets. E koho i ka lōʻihi kūpono o ke koena mea.
2. Pono e ma'ema'e nā ili o nā mea hana extrusion a me nā lā'au alumini
3. E nānā pinepine i ka nui o ka extrusion cylinder a hoʻololi i nā mea hana pono ʻole
4. ʻO ka extrusion maʻemaʻe, pono e hoʻolōʻihi ʻia ka wikiwiki extrusion i ka wā hope o ka extrusion, a ʻo ke koena mānoanoa e waiho kūpono, a i ʻole ke ʻano extrusion e hoʻonui ai i ke koena mea.
Helu 5: I mea e hoʻopau pono ai i ke ʻano o ka shrinkage i ka wā o ka hana ʻana i nā mīkini extrusion profile alumini, pono e nānā ʻia ka mānoanoa o ka extruder. Eia ka maʻamau kuhikuhi no ka mānoanoa keu.
Tonnage Extruder (T) Mānoanoa Extrusion (mm)
800T ≥15mm 800-1000T ≥18mm
1200T ≥20mm 1600T ≥25mm
2500T ≥30mm 4000T ≥45mm
Hoʻoponopono ʻia e May Jiang mai MAT Aluminum
Ka manawa hoʻouna: ʻAukake-14-2024
