Nheyo dzekugadzira PET Blow Molding: Gwaro Rakakwana rekugadzira PET Bottle

Dzidza zvakakosha zvekugadzira PET blow molding! Gwaro iri rinotsanangura hunhu hwezvinhu zvePET, dhizaini yepakutanga, maitiro ematanho rimwe chete kana maviri, uye saizi dzemutsipa dzakajairwa dzakadai se410 ne415 dzekurongedza zvizoro.

Nhanganyaya: Bhodhoro Riri Muruoko Rwako

Wakambotarisa pasi pebhodhoro rako reshampoo kana sipo yedhishi here? Kana ukaona chiratidzo chidiki chine mativi matatu chine nhamba "1" mukati uye mavara ePET, unenge wakabata chimwe chezvinhu zvinozivikanwa uye zvinoshandisika pakurongedza pasi rose.

PET (Polyethylene Terephthalate) ndiyo musimboti weindasitiri yemazuva ano yekurongedza, kunyanya muzvikamu zvekuchengetedza vanhu nezvinwiwa. PET inozivikanwa nekureruka, yakajeka, uye yakasimba zvikuru, yakachinja machengeterwo atinoita uye kutakura zvinwiwa. Muchinyorwa chino, tichatsanangura "sei" uye "nei" zveKuumbwa kwePET nekurova, zvichikubatsira kunzwisisa maitiro aya anonakidza ekugadzira.

1. Chii chaizvo chinonzi PET?

Tisati tatanga kushandisa michina iyi, ngatitarisei kemikari. PET inomirira Polyethylene Terephthalate. Imhando yepolyester.

Nzira Yekubika Makemikoro

PET inogadzirwa kuburikidza nekuita kwepolymerization pakati pezvinhu zviviri zvikuru:

1. PTA (Purified Terephthalic Acid)
2. EG (Ethylene Glycol)

Kana izvi zviviri zvikabatana, zvinogadzira resin yepurasitiki yakachengeteka pakudya uye pakuzora. PET inodiwa nekuti inoita kunge "girazi" asi haityoki kana ukaidonhedza. Inoshandawo sechidziviriro chikuru pakudzivirira hunyoro neokisijeni, izvo zvinochengetedza zvigadzirwa zvako kwenguva yakareba.

2. Pokutangira: Kunzwisisa "Preform"

Haungo "pfuri" bhodhoro kubva mudutu remapurasitiki. Bhodhoro rega rega rePET rinotanga basa raro sePreform (rinonziwo "parison").

Chii chinonzi Preform?

Funga nezve preform se "test tube" ine shinda. Ichi chigadzirwa chepakati chinogadzirwa kuburikidza nejekiseni rekugadzira.

• Mutsipa: Chikamu chepamusoro che preform (kwainoenda chivharo) chinopedzwa panguva yekubayiwa jekiseni. Saizi nechimiro chayo hazvizochinje panguva yekuputirwa.
• Muviri: Chikamu chepasi ichubhu ine madziro akakora. Ichi ndicho chikamu chichadziiswa uye chichatambanudzwa kuti chive bhodhoro rekupedzisira.

Magadzirirwo e preform—huremu hwayo, ukobvu hwemadziro, uye urefu—ndicho chinhu chakakosha pakusarudza mhando yebhodhoro rekupedzisira. Kana preform yacho yakanyanya kutetepa, bhodhoro racho harina kusimba; kana rakakora zvakanyanya, uri kutambisa mari pazvinhu.

3. Nzira mbiri dzekugadzira bhodhoro: Danho rimwe chete vs. Danho rechipiri

Muindasitiri iyi, kune nzira mbiri huru dzekushandura preform iyoyo kuita bhodhoro. Dzese dzine zvadzakanakira nezvadzakaipira.

Maitiro A: Maitiro Edanho Rimwe Chete

Mukuita kweOne-Step, kuumbwa kwejekiseni re preform uye kuumbwa kwebhotoro zvinoitwa mumuchina mumwe chete.

• Mashandiro ainoita: Purasitiki inopinzwa muchiumbwa kuti igadzire preform. Preform ichiri kupisa (inochengetedza simba!), inoendeswa kunzvimbo yekuputira kwainotambanudzwa yofuridzirwa kusvika pachimiro chekupedzisira.
• Zvakanakira: * Hunhu Hwepamusoro: Sezvo preform isingambobatiki nemaoko evanhu kana kuchengetwa mumabhini, mavanga mashoma.
  • Kushanda zvakanaka: Zvinochengetedza simba nekuti haufanirwe "kudziisazve" preform kubva patembiricha yemumba.
  • Kuchengetedza Nzvimbo: Muchina mumwe chete unoita zvese.

Maitiro B: Maitiro Ematanho Maviri

Maitiro eTwo-Step anopatsanura jekiseni nekufemera mumichina miviri yakasiyana uye kazhinji nguva mbiri dzakasiyana.

• Mashandiro azvinoita: Kutanga, muchina wekuisa jekiseni unogadzira zviuru zvema preforms. Izvi zvinotonhodzwa uye zvinochengetwa. Gare gare, ma preforms aya "anotonhora" anoiswa mumuchina weReheat Blow Molding.
• Zvakanakira:
  • Kuchinjika: Unogona kutenga preforms kubva kumutengesi ane hunyanzvi woisa mari mumuchina wekuputira chete.
  • Kugadzirwa kwezvinhu: Ma preform madiki uye ari nyore kutumira. Unogona kugadzira ma preform zviuru zana munzvimbo diki woatumira kufekitori kuti azoputirwa mumabhodhoro makuru gare gare.
  • Kumhanya: Michina yemazuva ano ine matanho maviri inogona kugadzira mabhodhoro nekumhanya kwakanyanya (makumi ezviuru paawa).

4. Magadzirirwo Ehunyanzvi: "Mutsipa" uye "Tambo"

Pakugadzira bhodhoro, "Mutsipa" ndiwo hunyanzvi hwakanyanya. Unofanira kuva nechokwadi chekuti chivharo chinokwana zvakakwana kudzivirira kubuda kwemvura. Munyika yePET, tinoshandisa zviyero zvakajairwa zveT-dimension (dhayamita yekunze yemutsipa).

Madhayamita emutsipa akajairika anosanganisira:

• Φ18, Φ20, Φ24, Φ28, Φ33 (mm)

Kuverengwa kweNhau (400, 410, 415)

Wakamboona here kuti mamwe macaps "akareba" uye mamwe "mapfupi"? Izvi zvinoreva zvirevo zveshinda:

• 400: Kazhinji zvinoreva kutenderera kamwe chete kweshinda.
• 410: Kazhinji zvinoreva kutenderera kweshinda ka1.5.
• 415: Iyi imhando ye "high-neck", inowanzo tenderera kaviri.

Kusarudza shinda chaiyo kwakakosha kune "ruzivo rwemushandisi." Mutsipa we415 unonzwa wakachengeteka uye wakanaka pakuchengetedza ganda repamusoro, nepo mutsipa we400 usingadhuri pakushandisa zvinwiwa zviri nyore.

5. PET vs. Mamwe Mapurasitiki: Ndeipi Yaunofanira Kusarudza?

Kunyange zvazvo PET iriyo mambo wekuita kuti zvinhu zvive pachena, haisiyo yega sarudzo. Heino maenzanisiro ayo nehama dzayo:

Zano Renyanzvi: Unogona kuona kuti bhodhoro iPET kana riine "dot" diki, rakajeka (gedhi) pakati pezasi. Kana pasi paine "weld line" refu, ingangove bhodhoro rePE kana PP rakagadzirwa kuburikidza ne extrusion blow molding.

6. Kupedzisa uye Zvishongedzo

Bhodhoro rinongova mudziyo kusvika wawedzera "hunhu." Mabhodhoro ePET anogona kugadziriswa nenzira dzakasiyana-siyana:

• Kupenda: Kunyange zvazvo PET yakajeka, unogona kuwedzera "masterbatch" kuti ive amber, bhuruu, kana kuti chena chaiyo.
• Kupfapfaidza: Kuti chitarisiko chive cheumbozha, mabhodhoro anogona kupendwa nependi yakapfapfaidzwa kana kuti yesimbi.
• Zvikamu Zvinoenderana: "Pakeji" inozadzwa ne:
  • Mapombi: Emafuta ekuzora nemaseramu.
  • Maflip-Tops: Yekugeza shampoo nesipo yedhishi.
  • Zvipfapfaidzo zveMhute: Zvematoners nezvinonhuwira.

7. Nei PET Yakakosha Kuindasitiri Yerunako

Maindasitiri ezvekushongedza nekutarisira bvudzi anoda PET nekuda kwezvikonzero zvitatu zvikuru:

1. Runako: Inotaridzika segirazi asi yakachengeteka zvikuru kana iri mushawa inotsvedza.
2. Kusabatwa nemakemikari: Hazvibatanidzi mafuta nezvinonhuwira zvinowanikwa mune sipo zhinji.
3. Kugara kwenguva refu: PET inogona kushandiswazve zvizere. Makambani mazhinji emazuva ano ari kushandisa rPET (PET inoshandiswazve) kuderedza kukanganiswa kwecarbon.

Mhedziso

Kunzwisisa kuumbwa kwePET blow kunoreva kunzwisisa kuenzana kuripo pakati pekemesitiri nehuinjiniya. Kubva pakutanga kwekuisa preform kusvika pakufefetera kwemhepo inoumba bhodhoro, nhanho imwe neimwe inoda kunyatsorongeka. Ungave uri muridzi webhizinesi ari kutsvaga kurongedza kana mudzidzi anofarira kugadzira, kuziva izvi zvinokubatsira kunzwisisa kuomarara kuri mukati mebhodhoro repurasitiki riri nyore.