Warpage inoreva kutsauka kwechimiro chejekiseni rakaumbwa chigadzirwa kubva pakuumbwa kweforoma mhango. Ndicho chimwe chezvinhu zvakajairika zvikanganiso zvepurasitiki zvigadzirwa. Kune zvikonzero zvakawanda zveiyo warpage uye deformation, izvo zvisingakwanise kugadziriswa nemaitiro parameter chete. Izvi zvinotevera ongororo pfupi yezvinhu zvinokanganisa warpage uye deformation yejekiseni rakaumbwa zvigadzirwa.
Iko kukanganisa kwechimiro chimiro pane chigadzirwa warpage uye deformation.
Panyaya yeforoma, zvinhu zvikuru zvinokanganisa kushandurwa kwezvikamu zvepurasitiki kuri kudira system, kutonhora sisitimu uye ejection system.
(1) Kudurura system.
Iyo chinzvimbo, chimiro uye huwandu hwegedhi rejekiseni jekiseni zvinokanganisa mamiriro ekuzadza epurasitiki muforoma mhango, zvichikonzera kushanduka kwechigadzirwa chepurasitiki. Iyo yakareba iyo yakanyunguduka kuyerera daro, iyo huru kunetseka kwemukati kunokonzerwa nekuyerera uye kudya pakati pechando chando uye yepakati kuyerera rukoko; iyo ipfupi kuyerera chinhambwe, ipfupi nguva yekuyerera kubva kumhepo kusvika kumagumo kwechigadzirwa kuyerera, uye ukobvu hwechando chakaomeswa panguva yeforoma yekuzadza Kuonda, kushushikana kwemukati kwaderedzwa, uye iyo warpage deformation ichaderedzwawo zvakanyanya. Kune mamwe mativi epurasitiki epuratifomu, kana pagedhi rimwe chete repakati pachishandiswa, zvinokonzerwa nedhaidhi dhayeti. Iyo shrinkage rate yeBU yakakura kudarika iyo shrinkage rate mune yakatenderera nzira, uye zvakaumbwa zvikamu zvepurasitiki zvicharemara; kana magedhi emapoinzi akawanda kana eefirimu-erudzi magedhi achishandiswa, kumonyorora deformation kunogona kudzivirirwa nenzira kwayo. Kana magedhi poindi achishandiswa pakuumba, zvakare nekuda kweanisotropy yepurasitiki shrinkage, iyo nzvimbo uye nhamba yemasuwo ane pesvedzero huru padanho rekushomeka kwezvigadzirwa zvepurasitiki. Pamusoro pe. Iko kushandiswa kwakawanda kuchinjika kunogona zvakare kupfupisa iyo kuyerera kwepurasitiki (L / t), nokudaro ichiita iyo yekunyungudika kuwanda mune iyo cavity yakawanda yunifomu uye kudzikira yunifomu yakawanda. Zvezvigadzirwa zve annular, nekuda kwemaumbirwo akasiyana egedhi, iwo iwo mwero wechigadzirwa chekupedzisira unokanganiswawo. Kana chigadzirwa cheplastiki chose chikagona kuzadzwa pasi pekidiki jekiseni kumanikidza, iyo diki jekiseni kumanikidza kunogona kudzora epurasitiki's mamorekuru maitiro uye kudzikisira kushushikana kwemukati. Naizvozvo, iyo deformation yeplastiki zvikamu inogona kuderedzwa.
(2) kutonhora maitiro.
Munguva yekuita jekiseni, iyo isina kuenzana kutonhora chiyero chemapurasitiki zvigadzirwa zvinokanganisawo isina kuenzana shrinkage yezvikamu zvepurasitiki. Uyu mutsauko mukudzikira kunotungamira kuchizvarwa chekukombama nguva uye warpage yezvigadzirwa. Kana tembiricha musiyano pakati peforoma mhango uye musimboti unoshandiswa mujekiseni kuumbwa kwemapurani zvigadzirwa (senge mbozhanhare bhatiri makomba) yakakura kwazvo, iyo yakanyungudika padhuze nechando chakuvhe mhango ichakurumidza kutonhora pasi, nepo zvinhu padyo inopisa muforoma mhango Iyo denderedzwa goko inoramba ichidzikira, uye iyo isina kuenzana shrinkage ichaita kuti chigadzirwa chishongedze. Naizvozvo, kutonhora kweiyo jekiseni muforoma kunofanirwa kutarisisa muyero uripo pakati pekushisa kwetavhu uye nepakati, uye musiyano wekupisa pakati pezviviri haufanire kunge wakanyanya kukura (mune iyi kesi, michina miviri yekushisa tembiricha inogona kutariswa).
Kunze kwekutarisa tembiricha yemukati neyekunze yechigadzirwa inowanzoenzana. Kugadzikana kwetembiricha parutivi rumwe nerumwe kunofanirwa kutariswa, ndiko kuti, tembiricha yegomba uye musimboti inofanirwa kuchengetwa seyunifomu sezvinobvira kana chando chave kutonhodzwa, kuitira kuti mwero wekutonhora wezvikamu zvepurasitiki ugone kuyananiswa, kuitira kuti iyo shrinkage yezvikamu zvakasiyana yakanyanya yunifomu uye inoshanda Ground yekudzivirira deformation. Naizvozvo, kurongeka kwemakomba emvura anotonhodza paforoma kwakakosha kwazvo, kusanganisira kutonhodza gomba remvura dhayamita d, gomba remvura kupatsanura b, pombi madziro kune mhango yepadenga c uye chigadzirwa madziro ukobvu w. Mushure mekumira pakati penzvimbo yemadziro nepavhu rakatarwa, chinhambwe pakati pemakomba emvura anotonhorera chinofanira kuve chidiki sezvinobvira. Kuitira kuona kuenzana kwetembiricha yeiyo yakaumbwa rabha rusvingo; dambudziko rinofanirwa kutariswa pakuona dhayamita yegomba remvura rinotonhodza nderekuti kunyangwe hazvo chiumbwa chacho chakakura sei, dhayamita yegomba remvura haigone kudarika 14mm, zvikasadaro inotonhorera haizomboite kuyerera kwakashata. Kazhinji, iyo dhayamita yegomba remvura inogona kutemerwa zvichienderana neepakati ukobvu hwemadziro hwechigadzirwa, kana paavhareji madziro ukobvu ari 2mm. Iyo dhayamita yegomba remvura ndeye 8-10mm; kana avhareji yemadziro ukobvu iri 2-4mm, iyo dhayamita yegomba remvura iri 10-12mm; kana avhareji yemadziro ukobvu iri 4-6mm, iyo dhayamita yegomba remvura iri 10-14mm, sezvakaratidzwa muMufananidzo 4-3 Wakaratidzwa. Panguva imwecheteyo, sezvo tembiricha yenzvimbo inotonhorera ichikwira nekuwedzera kwehurefu hwenzira inotonhorera yemvura, musiyano wekupisa pakati penzvimbo uye musimboti weforoma unogadzirwa munzira yemvura. Naizvozvo, iyo mvura chiteshi kureba kwega kwega kutonhora wedunhu inofanirwa kuve isingasviki 2m. Masekete akati wandei anotonhora anofanirwa kuiswa muforoma hombe, uye iyo inopinda yedunhu rimwe iri padyo nekubuda kwerimwe dunhu. Kune mapurasitiki akareba, yakatwasuka-kuburikidza nemikana yemvura inofanira kushandiswa. Mazhinji maforoma edu azvino anoshandisa zvishwe zvakaumbwa S, izvo zvisingaenderane nekutenderera uye zvinowedzera kutenderera.
(3) Ejection hurongwa.
Dhizaini yeiyo ejector system zvakare inokanganisa zvakananga deformation yezvigadzirwa zvepurasitiki. Kana iyo ejection sisitimu isina kudzikama, inokonzeresa kusaenzana muiyo ejection simba uye inokanganisa chigadzirwa chepurasitiki. Naizvozvo, kana uchigadzira ejection system, iyo ejection simba inofanirwa kuve yakaenzana neiyo ejection kuramba. Uye zvakare, iyo yekuyambuka-chikamu chikamu cheiyo ejector tsvimbo haigone kuve diki kwazvo kudzivirira chigadzirwa chepurasitiki kubva mukuremara nekuda kwesimba rakawandisa pachikamu cheyuniti (kunyanya kana tembiricha inodonha yakakwira). Kurongeka kweiyo ejector tsvimbo inofanirwa kuve iri padyo sezvinobvira kuchikamu nekukwirisa kudzvinyirira kuramba. Pafungidziro yekusakanganisa mhando yezvigadzirwa zvepurasitiki (zvinosanganisira zvinoshandiswa pakushandisa, kujeka kwekuita, chitarisiko, nezvimwewo), zvinhu zvakawanda sezvinobvira zvinofanirwa kumisikidzwa kudzora kudzikiswa kwezvose zvigadzirwa zvepurasitiki (ichi ndicho chikonzero chekuchinja tsvimbo yepamusoro pabhokisi repamusoro).
Kana mapurasitiki akapfava (akadai seTPU) achishandiswa kuburitsa zvakadzika-mhango matete epurasitiki, nekuda kwekudzvinyirira kukuru uye zvinhu zvakapfava, kana iyo chete-yemuchina ejection nzira ichishandiswa, zvigadzirwa zvepurasitiki zvicharemara. Kunyangwe kupfeka kwepamusoro kana zvakapetwa zvinoita kuti zvigadzirwa zvepurasitiki zvibviswe. Mune ino kesi, zvichave zvirinani kuchinjira kumubatanidzwa wezvinhu zvakawanda kana mubatanidzwa wegesi (hydraulic) kumanikidza uye meiki ejection.
