Imikhwa yokufa eyenziwayo kule nkqubo ingahluka kakhulu kubungakanani kunye nobunzima, ukusukela kwi-ounces ezimbalwa ukuya kwi-100 leepawundi. Isicelo esinye esiqhelekileyo sokufa kwezindlu zokufa zizindlu zokuhlala-ezivalelweyo, zihlala zifuna iimbambo ezininzi kunye nabaphathi basengaphakathi. Izindlu zensimbi yezixhobo ezahlukeneyo kunye nezixhobo zihlala zifa. Izinto ezininzi zemoto nazo zenziwa zisebenzisa ukuthoba, kubandakanya iipistons, iintloko ze-cylinder, kunye neebhloko zenjini. Ezinye iinxalenye eziqhelekileyo zokufa zibandakanya iiprova, iigiya, i-bushings, iimpompo, kunye neevalve.
Ukufika ngokuphosayo yinkqubo yokwenziwa yinkqubo yokwenziwa enokuvelisa iinxalenye zentsimbi ezintsonkothileyo ngokusetyenziswa kwezikhunta ezinokuphinda zifakwe, ezibizwa ngokuba zifa. Inkqubo yokuphosa i-die iquka ukusetyenziswa kwecebo, intsimbi, umatshini wokutya, kwaye wafa. Isinyithi, ngokwesinyithi i-alloy engeyiyo i-aluminium okanye i-zinc, inyibilikisiwe kwiziko kwaye emva koko igcinwe kwi-dies kumatshini wokuphelelwa. Zimbini iintlobo eziphambili zoomatshini bokuphosa-umatshini oshushu (osetyenziselwa izabelo ngamaqondo obushushu aphantsi, anjenge-zinc) kunye noomatshini be-chinc) kunye ne-alfally enamagumbi aphezulu enyibilikisi, efana ne-aluminium). Umahluko phakathi kwaba matshini uya kuchazwa kumacandelo kwizixhobo kunye nesixhobo. Nangona kunjalo, kubo bobabini oomatshini, emva kokuba inyikima etyhidiweyo ifakwe kwi-fues, iyaphola ngokukhawuleza kwaye iqinise ingqinile kwinxalenye yokugqibela, ebizwa ngokuba yimphunga. Amanyathelo akweli nkqubo achazwe kwiinkcukacha ezinkulu kwicandelo elilandelayo.
Iinxalenye zokuphosa zinokwahluka kakhulu ngobukhulu kwaye ke zifune la manyathelo kugubungela uluhlu olukhulu kakhulu. Ngenxa yoko, oomatshini bokuphosa abantu benzelwe indawo yokuhlala indawo yokuhlala encinci yale miboniso mikhulu yamaxabiso. Imodeli yesampulu yegumbi elivileyo le-hard kunye noomatshini bokuphosa ababandayo banikwa apha ngezantsi.
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Type
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Clamp force (ton)
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Max. shot volume (oz.)
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Clamp stroke (in.)
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Min. mold thickness (in.)
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Platen size (in.)
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Hot chamber
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100
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74
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11.8
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5.9
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25 x 24
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Hot chamber
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200
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116
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15.8
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9.8
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29 x 29
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Hot chamber
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400
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254
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21.7
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11.8
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38 x 38
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Cold chamber
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100
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35
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11.8
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5.9
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23 x 23
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Cold chamber
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400
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166
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21.7
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11.8
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38 x 38
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Cold chamber
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800
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395
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30
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15.8
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55 x 55
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Cold chamber
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1600
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1058
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39.4
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19.7
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74 x 79
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Cold chamber
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2000
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1517
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51.2
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25.6
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83 x 83
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Ukukhethwa kwento yokuphosa ngokufa kusekwe kwizinto ezininzi kubandakanya ukuxinana, indawo yokunyibilika, amandla, kunye neendleko. Izixhobo zinokuchaphazela uyilo lwenxalenye. Umzekelo, ukusetyenziswa kwe-zinc, nto leyo eyintsimbi ye-ductile kakhulu, inokuvumela iindonga ezincinci kunye nokugqibelela okungcono kunezinye izabelo ezininzi. Isixhobo esingayi kugqiba iipropathi zokuphosa okokugqibela, kodwa zinefuthe kumatshini kunye nesixhobo. Izixhobo ezinamaqondo obushushu aphantsi, anjenge-ZINC ALTEY, anokufa afike kumatshini oshushu wegumbi. Nangona kunjalo, izixhobo kunye nobushushu obuphezulu obunyibilikayo, ezinjenge-aluminium kunye nobhedu, funa ukusetyenziswa komatshini wegumbi lobunzima. Iqondo lobushushu likwachaphazela isixhobo, njengoko iqondo lobushushu eliphezulu liya kuba nefuthe elikhulu ngakumbi kubomi be-fues.
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Materials
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Properties
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Aluminum alloys
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·Low density
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·Good corrosion resistance
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·High thermal and electrical conductivity
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·High dimensional stability
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·Relatively easy to cast
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·Requires use of a cold chamber machine
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Copper alloys
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·High strength and toughness
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·High corrosion and wear resistance
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·High dimensional stability
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·Highest cost
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·Low die life due to high melting temperature
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·Requires use of a cold chamber machine
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Zinc alloys
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·High density
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·High ductility
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·Good impact strength
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·Excellent surface smoothness allowing for painting or plating
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·Requires such coating due to susceptibility to corrosion
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·Easiest to cast
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·Can form very thin walls
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·Long die life due to low melting point
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·Use of a hot chamber machine
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Advantages:
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·Can produce large parts
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·Can form complex shapes
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·High strength parts
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·Very good surface finish and accuracy
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·High production rate
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·Low labor cost
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·Scrap can be recycled
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