1, pulasitiki PE (polyethylene)

Kukoka kwapadera: 0.94-0.96g/cm3

Kuchuluka kwa kuumba: 1.5-3.6%

Kutentha kwa kutentha: 140-220 ℃

Kuchita kwakuthupi

Kukana dzimbiri, kutchinjiriza magetsi (makamaka high frequency kutchinjiriza) kwambiri, akhoza chlorinated, walitsa kusinthidwa, kupezeka galasi CHIKWANGWANI analimbitsa.Polyethylene yotsika kwambiri imakhala ndi malo osungunuka kwambiri, kuuma, kuuma ndi mphamvu, kuyamwa kwamadzi otsika, magetsi abwino komanso kukana kwa radiation;high pressure polyethylene ali kusinthasintha wabwino, elongation, mphamvu mphamvu ndi permeability;ultra-high molecular weight polyethylene imakhala ndi mphamvu zambiri, kukana kutopa komanso kukana kuvala.

Low kuthamanga polyethylene ndi oyenera kupanga dzimbiri kugonjetsedwa ndi mbali ndi insulating mbali;high pressure polyethylene ndi oyenera kupanga mafilimu, etc.;UHMWPE ndiyoyenera kupanga zida zodzidzimutsa, zosavala komanso zopatsirana.

Kuumba ntchito

1, Crystalline zakuthupi, mayamwidwe ang'onoang'ono a chinyezi, safunikira kuuma kwathunthu, fluidity kwambiri, fluidity imakhudzidwa ndi kukakamizidwa.Jekeseni wothamanga kwambiri ndi woyenera kuumba, kutentha kwa zinthu zofananira, kuthamanga kwachangu komanso kukhazikika kokwanira.Sikoyenera kugwiritsa ntchito chitseko chachindunji kuti mupewe kuchepa kosagwirizana komanso kuwonjezereka kwa nkhawa zamkati.Samalani kusankha malo a chipata kuti mupewe kuchepa ndi kusinthika.

2, Shrinkage osiyanasiyana ndi shrinkage mtengo ndi lalikulu, malangizo n'zoonekeratu, zosavuta mapindikidwe ndi warpage.Kuthamanga kwa kuziziritsa kuyenera kukhala kocheperako, ndipo nkhungu iyenera kukhala ndi mazenera ozizira ndi njira yozizira.

3, Kutentha nthawi sikuyenera kukhala yayitali, apo ayi kuwonongeka kudzachitika ndikuyaka.

4, Zigawo zofewa za pulasitiki zikakhala ndi ma grooves osaya, nkhungu imatha kukakamizidwa.

5, Kuphulika kwa zisungunuko kungachitike ndipo sayenera kukhudzana ndi zosungunulira organic kuteteza akulimbana.

2, pulasitiki ya PC (polycarbonate)

Kulemera kwapadera: 1.18-1.20g / cm3

Kuchuluka kwa kuumba: 0.5-0.8%

Kutentha kwa kutentha: 230-320 ℃

Kuyanika chikhalidwe: 110-120 ℃ 8 hours

Kuchita kwakuthupi

Mphamvu zamphamvu kwambiri, kukhazikika kowoneka bwino, zopanda utoto komanso zowoneka bwino, mitundu yabwino, kutchinjiriza kwamagetsi, kukana dzimbiri ndi kukana abrasion, koma kudzipaka mafuta ochepa, chizolowezi chophwanyira nkhawa, hydrolysis yosavuta pakutentha kwambiri, kusalumikizana bwino ndi ma resin ena.

Ndizoyenera kupanga zing'onozing'ono zotetezera ndi zowonekera pazida ndi zina zomwe zimagonjetsedwa.

Kuumba ntchito

1, zinthu amorphous, zabwino matenthedwe bata, osiyanasiyana akamaumba kutentha, osauka fluidity.Mayamwidwe ang'onoang'ono a chinyezi, koma okhudzidwa ndi madzi, ayenera kuuma.Kumangirira kumakhala kochepa, komwe kumakonda kusungunula kusweka komanso kupsinjika, chifukwa chake mikhalidwe yowumba iyenera kuyendetsedwa mosamalitsa, ndipo zigawo zapulasitiki ziyenera kutsekedwa.

2, kutentha kwambiri kusungunuka, kukhuthala kwakukulu, magawo apulasitiki opitilira 200g, ndikofunikira kugwiritsa ntchito nozzle yamtundu wa Kutentha.

3, Fast kuzirala liwiro, nkhungu kuthira dongosolo coarse, lalifupi monga mfundo, ayenera kukhazikitsidwa zinthu ozizira bwino, chipata ayenera kutengedwa lalikulu, nkhungu ayenera usavutike mtima.

4, kutentha kwa zinthu ndi otsika kwambiri kungayambitse kusowa kwa zinthu, mbali za pulasitiki popanda kuwala, kutentha kwa zinthu ndikokwera kwambiri kosavuta kusefukira m'mphepete, mbali zapulasitiki zimaphulika.Kutentha kwa nkhungu kukakhala kocheperako, kuchepa kwake, kutalika kwake komanso mphamvu zake zimakhala zazikulu, pomwe kupindika, kupondaponda ndi kulimba kwamphamvu kumakhala kotsika.Kutentha kwa nkhungu kupitirira madigiri 120, mbali zapulasitiki zimachedwa kuziziritsa komanso zosavuta kupunduka ndikumamatira ku nkhungu.

3, ABS pulasitiki (acrylonitrile butadiene styrene)

Kulemera kwapadera: 1.05g/cm3

Kutsika kwapang'onopang'ono: 0.4-0.7%

Kutentha kwa kutentha: 200-240 ℃

Kuyanika chikhalidwe: 80-90 ℃ 2 hours

Kuchita kwakuthupi

1, Kuchita bwino kwambiri, mphamvu zambiri, kukhazikika kwamankhwala, mphamvu zamagetsi zamagetsi.

2, maphatikizidwe Good ndi 372 galasi organic, zopangidwa mbali ziwiri mitundu pulasitiki, ndi pamwamba akhoza chrome-yokutidwa, kutsitsi mankhwala utoto.

3, pali kukhudzika kwakukulu, kukana kutentha kwakukulu, kutentha kwamoto, kumawonjezera, kumawonekera ndi milingo ina.

4, fluidity ndi yoyipa pang'ono kuposa HIPS, kuposa PMMA, PC, etc., kusinthasintha kwabwino.

Zoyenera kupanga zida zamakina, zosamva kuvala, zida zotumizira ndi zida zamatelefoni.

Kuumba ntchito

1, amorphous zakuthupi, sing'anga fluidity, mayamwidwe chinyezi, ayenera zouma mokwanira, zofunika padziko glossy mbali pulasitiki ayenera kukhala nthawi yaitali preheat kuyanika madigiri 80-90, 3 hours.

2, Iwo m'pofunika kutenga kutentha zinthu mkulu ndi kutentha nkhungu mkulu, koma zinthu kutentha kwambiri ndi zosavuta kuwola.Pazigawo zapulasitiki zolondola kwambiri, kutentha kwa nkhungu kuyenera kukhala madigiri 50-60, ndipo pazigawo zapulasitiki zosagwira kutentha kwambiri, kutentha kwa nkhungu kuyenera kukhala madigiri 60-80.

3, Ngati mukufuna kuthetsa vuto la clamping madzi, muyenera kusintha fluidity wa zinthu, kutenga mkulu zinthu kutentha, mkulu nkhungu kutentha, kapena kusintha mlingo wa madzi ndi njira zina.

4, monga kupanga zinthu zosagwira kutentha kapena zosagwira moto, pamwamba pa nkhungu pambuyo pa masiku 3-7 akupanga azikhalabe kuwonongeka kwa pulasitiki, zomwe zimapangitsa kuti nkhungu ikhale yonyezimira, nkhungu iyenera kutsukidwa munthawi yake, pamene nkhungu pamwamba ayenera kuonjezera malo utsi.

4, PP pulasitiki (polypropylene)

Kukoka kwapadera: 0.9-0.91g/cm3

Kutsika kwapang'onopang'ono: 1.0-2.5%

Kutentha kwa kutentha: 160-220 ℃

Kuyanika zinthu: -

Zinthu zakuthupi

Kachulukidwe kakang'ono, mphamvu, kuuma, kuuma ndi kukana kutentha kuli bwino kuposa polyethylene yotsika, imatha kugwiritsidwa ntchito pafupifupi madigiri 100.Mphamvu zabwino zamagetsi ndi kutsekemera kwapafupipafupi sizimakhudzidwa ndi chinyezi, koma zimakhala zowonongeka ndi kutentha kochepa ndipo sizigonjetsedwa ndi nkhungu komanso zosavuta kukalamba.

Ndi oyenera kupanga ambiri makina mbali, dzimbiri kugonjetsedwa ndi mbali insulating.

Kuumba ntchito

1, zinthu za crystalline, kuyamwa kwa chinyezi ndikochepa, kosavuta kusungunula kuphulika kwa thupi, kukhudzana kwanthawi yayitali ndi chitsulo chowotcha mosavuta kuwonongeka.

2, fluidity wabwino, koma shrinkage osiyanasiyana ndi shrinkage mtengo waukulu, zosavuta kuchitika shrinkage, mano, mapindikidwe.

3, Fast kuzirala liwiro, kuthira dongosolo ndi kuzirala dongosolo ayenera kukhala wosakwiya dissipate kutentha, ndi kulabadira kulamulira akamaumba kutentha.Chitsogozo cha kutentha kwa zinthu zochepa ndizodziwikiratu, makamaka pa kutentha kochepa komanso kuthamanga kwambiri.Pamene nkhungu kutentha ndi otsika kuposa madigiri 50, mbali pulasitiki si yosalala, zosavuta kubala maphatikizidwe osauka, kusiya zizindikiro, ndi pamwamba madigiri 90, zosavuta kupotoza ndi mapindikidwe.

4, makulidwe a pulasitiki khoma ayenera kukhala yunifolomu, kupewa kusowa zomatira, ngodya lakuthwa, kupewa ndende maganizo.

5, PS pulasitiki (polystyrene)

Kulemera kwapadera: 1.05g/cm3

Kutsika kwapang'onopang'ono: 0.6-0.8%

Kutentha kwa kutentha: 170-250 ℃

Kuyanika zinthu: -

Kuchita kwakuthupi

Kutchinjiriza magetsi (makamaka kutchinjiriza kwafupipafupi) ndikwabwino kwambiri, kopanda mtundu komanso kowonekera, kutsika kwapang'onopang'ono kumakhala kwachiwiri kwa magalasi achilengedwe, utoto, kukana madzi, kukhazikika kwamankhwala ndikwabwino.General mphamvu, koma Chimaona, zosavuta kubala nkhawa Chimaona mng'alu, osati kugonjetsedwa ndi benzene, petulo ndi zina zosungunulira organic.

Ndizoyenera kupanga zotetezera ndi zowonekera, zokongoletsa ndi zigawo za zida za mankhwala ndi zida za kuwala.

Kupanga magwiridwe

1, amorphous zakuthupi, mayamwidwe ang'onoang'ono a chinyezi, safuna kuuma kwathunthu, osavuta kuwola, koma coefficient ya kukulitsa matenthedwe ndi yayikulu, yosavuta kutulutsa kupsinjika kwamkati.Kuthamanga kwabwino, komwe kumapezeka popanga makina opangira jekeseni kapena plunger.

2, Kutentha kwakukulu kwa zinthu, kutentha kwakukulu kwa nkhungu ndi kuthamanga kwa jekeseni otsika ndizoyenera.Kuonjezera nthawi ya jekeseni kumapindulitsa kuchepetsa kupsinjika kwa mkati ndikupewa kuchepa ndi kusinthika.

3, yopezeka m'mitundu yosiyanasiyana ya chipata, chipata ndi kulumikizana kwa pulasitiki, kuti mupewe kuwonongeka kwa zigawo zapulasitiki popita kuchipata.Kutsetsereka kwa demoulding ndi kwakukulu, ejection ndi yofanana, makulidwe a khoma la gawo la pulasitiki ndilofanana, ndi bwino kusakhala ndi zoikamo, ngati pali zoyikapo, ziyenera kutenthedwa.