Kugadzira mu silicone fomu: midziyo. Ivhara muumbwe mu silicone molds

Nekugadzirwa kwenhamba shoma yemapurasitiki, kusvibisa kwekusimba mu silicone molds inowanzoshandiswa. Iyi nzira yakanyanyisa mari (kugadzira bundu resimbi kunoda nguva yakawanda nemari). Mukuwedzera, silicone molds inoshandiswa kakawanda, uye izvi zvinowedzerawo kuderedza mari yekugadzirwa.

Kutamba kwepurasitiki

Icho chinonyanya kukosha chekugadzira masasa epurasitiki ndeyotevera. Izvo zvakanyungudutswa zviri muhuwandu hwemafuro (zvigadzirwa zvakakosha zvekugadzira mu-silicone molds). Pasi pechiito chepiston, uwandu hunofamba mumigwagwa inokwira, uye hunozadza nzvimbo yehutu. Nokudaro, zvinobvira kuwana rusvingo. Apo ipurasitiki inopisa, maatomu kubva kwairi yakanyorwa anotanga kufamba zvese nemaitiro. Zvisinei, painotonhora, nzvimbo dzekristalllization dzinotanga kuumba. Masvingo echomu anokura makristasi, zvino izvi zvinotora nzvimbo mukati mekukanda. Panguva ino zvakakosha zvikuru kutevedzera hurumende yekutonhora, kusarudza nguva yakakodzera yekukwegura. Kana zvisina kudaro, injection yeplastiki muasilicone molds ichave isina kumira, ine zviratidzo zvinooneka zvekuramba. Asi, kutanga kwezvose, zvakakosha kuita mafomu ivo pachavo, umo mauto ekristalllization achateurirwa.

Teknolojia yekugadzira molds yekukanda

Kune nzira dzakawanda dzekusika silicone molds. Yokutanga yeiyi kuzadza zvakasimba. Iyi nzira yakakodzera nyore maitiro: reliefs, zvigadzirwa zvemariro, maviri-dimensional parts. Mutevedzeri unoiswa mune chimwe chimiro, chizere ne silicone. Mipumburu inowanikwa yakafanana neyepakutanga, inoshandiswa pakuumbwa kwakaoma. Mhando mbiri-mazana anobudiswa mumatanho akawanda. Chokutanga, hafu yekutanga yebasa inodururwa, mushure mekuoma kwesilicone, chimiro chinoshandiswa uye chikamu chechipiri chakafanana. Zvakakosha zvikuru kuti nzira iyi isarudze kuvhara kwakakosha pamusana (kuisa mu silicone fomu yemhando iyi inofanira kuitika kunze kwekusimuka kwayo). Nenzira yakajeka inodzokorora zvose zvese zve fomu yebasa "in namazku." A viscous silicone inoshandiswa kune chikamu nebrashi. Izvo zvinotanga kuitika mumatanho akawanda, izvi zvakakosha kuti kudzokorora kwakakwana kwezvinhu zvose zviduku zvechigadzirwa. Muchiitiko ichi, iyo fomu pachayo inenge yakaonda - kubva pa3 mm. Kuti uchengete uri muhumiro, yekunze shell yakadzika inogadzirwa pachikamu chekupedzisira.

Silicone yekugadzirwa kweganda

Kuvhara mukukutura mumasiki ekusimba kunosanganisira kushandiswa kwezvinhu zvakasiyana pakuumba matrices. Mumwe wavo i-silicone yakafanana neMold Star. Inoshandiswa mukudururira kunogara, yakasimba uye yakasununguka. Iyo yakasimbiswa inoitika panzvimbo yekupisa. Nokuti iyo nzira "in namazku" inowanzoshandisa yakatevedzana Rebount. Iyi silicone ine yakanyanya kutaridzika, iyo inogona kudzorwa neyekusimudza. Kukanda mu-silicone fomu yemhando iyi kunoita kuti zvikwanise kuwana mhando yepamusoro, yakasimba matrix, uye, maererano naizvozvo, chikamu chakanyanya kunyanya. Iko kunewo zvisiyana zvakasiyana-siyana zvesiliconi, izvo zvakakosha pakuumbwa kwemaumbirwo.

Zvinhu zvekukanda

Sezvo mutemo, polyurethane inoshandiswa pakugadzira zvikamu zvacho pachavo. Mashoko acho ane simba guru, simba, elasticity. Iyo polyurethane rubber ine simba rakakwirira rakasimba uye simba rakasimba. Iyo inoshandiswa mukugadzirwa kwematepi akasiyana-siyana, magiravha, kufa, gaskets, bushings. Kunyange nokuda kwekukanda kunoshandisawo ipurasitiki yakajeka. Icho chinopesana ne ultraviolet rays uye chinoramba chichiratidzwa pachena kunyange kana chikaita. Munda wekushandiswa ndeyemarangariro emhando dzakasiyana-siyana, maitiro ekurapa, kubudiswa kwezviyeuchidzo, nezvimwewo. Kazhinji, kuumbwa muomufomu weSilicone kunosanganisira kushandiswa kwemasanganiswa maviri, izvo zvinosanganisira plastiki zvakananga uye chinokonzera.

Kuumbwa kwepurasitiki mu-silicone molds. Zvishandiso

Kudyidzana kwekodhi yemakadhi ekurasira inzira inyanzvi inobvumira kuwana mabheji emakopi chaiwo ezvinyorwa zvese zvinonetsa. Kakawanda, nzira yacho inoshandiswa kuwana maitiro anongororwa asati aendesa kushambadzira kwemazhinji, kuongorora kuonekwa, kugadzirwa.

Kuumbwa kwezvinhu zvepurasitiki mu-silicone mold zvinoshandisa zvinotevera: chipfeko chinoputika (injection molding machine), thermo cabinet, vacuum mixer (mixer). Silicone inotanga kugadzirirwa muimba yekuvhara, iyo inogadziriswa. Izvi zvakakosha kudzivirira kuumbwa kwemabhuru pahutu. Mushure mokuumbwa kwekugadzirwa kwave kuchiitwa uye kunotangiswa, polyurethanes (kana kuti resin zvechikamu chekupedzisira) inosanganiswa zvakananga. Izvi zvinogadziriswa muimba yekuvhara. Kupinda pasuo musanganiswa inodururirwa muhutu. Nekugadzirisa kwekupedzisira, workpiece inofanira kuiswa muhanu inokosha, umo kuoma kwekupedzisira kwechigadzirwa kunoitika pachitonho che 70 ° C.

Indu yekuvhara. Zvinhu Zvikuru

Sezvo mutemo, muchiyero chekugadzira, kushandura kamwe-kamwe mu-silicone molds kunoshandiswa. Iyo midziyo, iyo yekamuri yepombi, inobvumira kudzora zvose kutsetse nekukanda kasi. Munhu wacho haafaniri unyanzvi hwakanaka uye ruzivo, sezvo zvose zvinotungamira zvinobva kune inoshandiswa nzira iyo ine zvose zviri nyore uye zvinyorwa zvekuchinja. Iko kunewo mukana wekugadzirisa chirongwa chakataurwa. Kusiyana kwakasiyana-siyana kwemakamuri kunokwanisa kubudisa mavara kusvika 5 kg (somuenzaniso, kamera CT-02). Chikwata chacho chakagadziriswa nesimudziro yekusimudza silicone molds. Zvinofanira kuonekwa kuti CT-02 inobvumira kushandiswa kwemashure maduku uye pane matric.

Imwe nzira ndeye MCP kamera. Iyi silicone yakagadzirisa midziyo inoita kuti zviboneke kuumba zvikamu nemasvingo mashoma uye kushandiswa kwakaoma. Izvi zvinogadziriswa nekuda kwekuparadzaniswa kwemhepo. Ipapo iyo yakagadzirwa yakagadziriswa inobviswa, uye inotevera inosimbisa mumhepo. Kuvhara mukati mekusimbiswa kwesilicone kune mamwe marudzi emaplastiki anogadzirwa mu thermo makabati, izvo zvinoita kuti kupisa kunofanana kwemweya, uye, saizvozvo, basa racho.

Kugadziriswa kwekupedzisira kwekwereti yekukanda

Mushure memapurisa epurasitiki akaoma zvakaoma, anobviswa zvakanyanyiswa kubva muchiganda. Kune mishonga inoshandiswa yepamusoro, yakabviswa uye yakacheneswa kunze kwekushongedza, kusaputsika kwekuregererwa. Kana zvichidikanwa, chinhu chisina kuvharwa chakafukidzwa nepepa kana zvimwe zvekudzivirira. Iko kunofanirwa kuchenesa uye silicone fomu, kubvisa zvinyorwa zvepurasitiki. Ipapo inoshambidzwa, yakagadzirira kushandiswa gare gare. Zvakakosha kuziva kuti kuumbwa kwepurasitiki mumasikisi e-silicone kunopa huwandu hwekushandiswa kwematrices (kubva pane makumi maviri kusvika makumi masere).

Izvo zvakakosha zvinobatsira zvemuitiro

Kudhura kwemadiki kuduku kunowedzera, kunobvumira kuti purogiramu inofungidzire mutengesi wekutengesa, kuedza mishonga, kugadzira mabasa akanyorwa nevanyori mune zvishoma. Silicone molds, iyo inoshandiswa mukuumbwa kwepurasitiki, inoita kuti zvikwanise kunyatsonyora kukoshesa, chimiro, nekugadzirwa kwebasa. Chikamu chinosunungurwa nyore nyore kubva mumatrice, chinogona kushandiswa zvakare. Castings vane nhamba shomanana yezvisikwa zvepamusoro, zvakanakisisa zvemuviri uye zvemichina. Mukuwedzera, mune dzimwe nguva, kunyange simbi inogona kudururirwa mu-silicone molds.

Asi kubatsirwa kukuru kwekugadzirwa mune silicone molds mutengo. Vatengi vebasa iri vanoratidza kuti mari yekupedzisira yebasa iri inobva pane zvigadzirwa zvepurasitiki uye pamavhareji emitengo yechikamu chacho (somuenzaniso, 10 * 10 * 10 cm billet inogona kutenga mabhiri 1,500). Silicone pachayo inogona kutengwa kubva kumabhuru 500 kubva kilogram, plastiki - kubva kuma700 rubles. Mari inoshandiswa yesimbi yakakwirira kwazvo, dzimwe nguva kushandiswa kwayo hakusi nyore (kana kupararira kune maundi akawanda). Uye silicone matrices zvakare inokodzera kushandiswa kwemisha, hazvifaniri kutenga zvigadzirwa zvinodhura. Zvinongoita chete kuti uite chimiro iwe pachako, kuti ufungisise nguva yeupenyu ye polyurethanes (nguva iyo inoramba yakasviba uye yakakodzera kudira), kuchengeta zvose zvishandiso zvehutaneti - nekuumbwa musimu yesilicone inogona kuitwa kunyange kumba. Maererano nekuverenga, mari yebillet imwe munyaya iyi inenge 70-140 rubles.