Nkhani

Makina opangira matumba ndi makina opangira mitundu yonse yamatumba apulasitiki kapena zikwama zina zakuthupi. processing ake osiyanasiyana ndi mitundu yonse ya matumba pulasitiki kapena zinthu zina ndi makulidwe osiyanasiyana, makulidwe ndi specifications. Nthawi zambiri, matumba apulasitiki ndizomwe zimagulitsidwa.

Makina opangira matumba apulasitiki

1. Gulu ndi kugwiritsa ntchito matumba apulasitiki

1. Mitundu ya matumba apulasitiki
(1) Chikwama chapulasitiki cha polyethylene chothamanga kwambiri
(2) Chikwama chochepa cha pulasitiki cha polyethylene
(3) Chikwama cha pulasitiki cha polypropylene
(4) PVC thumba pulasitiki

2. Kugwiritsa ntchito matumba apulasitiki

(1) Cholinga cha thumba lapulasitiki la polyethylene lalitali:
A. Kupaka chakudya: makeke, maswiti, zokazinga, masikono, mkaka ufa, mchere, tiyi, etc;
B. Kupaka CHIKWANGWANI: malaya, zovala, singano thonje mankhwala, mankhwala CHIKWANGWANI mankhwala;
C. Kupaka kwa mankhwala a tsiku ndi tsiku.
(2) Cholinga cha thumba lapulasitiki la polyethylene low pressure:
A. Thumba la zinyalala ndi thumba la kupsyinjika;
B. Chikwama chothandizira, thumba logulira, chikwama, thumba la vest;
C. Chikwama chatsopano;
D. Chikwama chamkati choluka
(3) Kugwiritsa ntchito polypropylene thumba pulasitiki: makamaka ntchito kulongedza nsalu nsalu, singano thonje mankhwala, zovala, malaya, etc.
(4) Kugwiritsa ntchito matumba apulasitiki a PVC: A. matumba amphatso; B. Zikwama zonyamula katundu, matumba a thonje a singano, matumba opangira zodzoladzola;

C. (zipper) chikwama cholemba ndi thumba la data.

2.Kupanga mapulasitiki

Pulasitiki yomwe timagwiritsa ntchito nthawi zambiri si chinthu choyera. Zimapangidwa ndi zipangizo zambiri. Pakati pawo, ma polima apamwamba kwambiri (kapena utomoni wopangira) ndiye chigawo chachikulu cha mapulasitiki. Kuphatikiza apo, pofuna kupititsa patsogolo magwiridwe antchito a pulasitiki, ndikofunikira kuwonjezera zida zingapo zothandizira, monga ma fillers, plasticizers, lubricant, stabilizers and colorants, kuti akhale mapulasitiki ochita bwino.

1. Synthetic utomoni
Synthetic resin ndiye chigawo chachikulu cha mapulasitiki, ndipo zomwe zili mu pulasitiki nthawi zambiri zimakhala 40% ~ 100%. Chifukwa cha kuchuluka kwake komanso mawonekedwe a utomoni nthawi zambiri amatsimikizira mtundu wa pulasitiki, anthu nthawi zambiri amawona utomoni ngati mawu ofanana ndi mapulasitiki. Mwachitsanzo, PVC utomoni ndi PVC pulasitiki, phenolic utomoni ndi phenolic pulasitiki amasokonezeka. M'malo mwake, utomoni ndi pulasitiki ndi malingaliro awiri osiyana. Utomoni ndi polima woyambirira wosakonzedwa. Sizigwiritsidwa ntchito popanga mapulasitiki okha, komanso amagwiritsidwa ntchito ngati zopangira zokutira, zomatira ndi ulusi wopangira. Kuphatikiza pa kachigawo kakang'ono ka mapulasitiki okhala ndi utomoni wa 100%, mapulasitiki ambiri amafunika kuwonjezera zinthu zina kuwonjezera pa chigawo chachikulu cha utomoni.

2. Wodzaza
Zodzaza, zomwe zimadziwikanso kuti zodzaza, zimatha kupititsa patsogolo mphamvu ndi kukana kutentha kwa mapulasitiki ndikuchepetsa mtengo. Mwachitsanzo, kuwonjezera ufa wa nkhuni ku phenolic resin kumatha kuchepetsa mtengo wake, kupanga pulasitiki ya phenolic kukhala imodzi mwamapulasitiki otsika mtengo kwambiri, ndikuwongolera kwambiri mphamvu zamakina. Zodzaza zimatha kugawidwa m'ma organic fillers ndi ma inorganic fillers, akale monga nkhuni ufa, nsanza, mapepala ndi ulusi wansalu zosiyanasiyana, ndipo zomalizirazo monga ulusi wagalasi, diatomite, asibesitosi, kaboni wakuda, ndi zina zambiri.

3. Pulasitiki
Plasticizers amatha kuwonjezera pulasitiki ndi kufewa kwa mapulasitiki, kuchepetsa brittleness ndikupanga mapulasitiki osavuta kupanga ndi mawonekedwe. Mapulasitiki nthawi zambiri amakhala owiritsa kwambiri omwe amasakanikirana ndi utomoni, wopanda poizoni, wopanda fungo komanso wosasunthika pakuwala ndi kutentha. Phthalates ndi omwe amagwiritsidwa ntchito kwambiri. Mwachitsanzo, popanga mapulasitiki a PVC, ngati mapulasitiki owonjezera amawonjezeredwa, mapulasitiki ofewa a PVC amatha kupezeka. Ngati palibe mapulasitiki kapena ocheperako omwe amawonjezedwa (mulingo <10%), mapulasitiki olimba a PVC atha kupezeka.

4. Stabilizer
Pofuna kuteteza utomoni wopangidwa kuti usawonongeke ndikuwonongeka ndi kuwala ndi kutentha pakukonzekera ndi kugwiritsira ntchito, ndikutalikitsa moyo wautumiki, stabilizer iyenera kuwonjezeredwa ku pulasitiki. Zomwe zimagwiritsidwa ntchito kwambiri ndi stearate, epoxy resin, etc.

5. Mtundu
Zojambulajambula zimatha kupanga mapulasitiki kukhala ndi mitundu yowala komanso yokongola. Utoto wa organic ndi inorganic pigments nthawi zambiri amagwiritsidwa ntchito ngati utoto.

6. Mafuta
Ntchito ya lubricant ndikuletsa pulasitiki kuti isamamatire ku nkhungu yachitsulo panthawi yomanga, ndikupanga pulasitiki kuti ikhale yosalala komanso yokongola. Mafuta ambiri amaphatikizapo stearic acid ndi mchere wake wa calcium magnesium.

Kuphatikiza pa zowonjezera pamwambapa, zoletsa moto, zotulutsa thovu ndi antistatic zitha kuwonjezeredwa ku mapulasitiki kuti akwaniritse zofunikira zosiyanasiyana zogwiritsira ntchito.

Makina opangira thumba la zovala

Thumba lachikwama limatanthawuza thumba lopangidwa ndi filimu ya OPP kapena filimu ya PE, PP ndi CPP, yopanda filimu yomatira polowera ndikusindikizidwa kumbali zonse ziwiri.

Cholinga:

Nthawi zambiri timagwiritsa ntchito kulongedza zovala zachilimwe, monga malaya, masiketi, mathalauza, mabasi, matawulo, buledi ndi zikwama zodzikongoletsera. Nthawi zambiri, thumba lamtunduwu limakhala ndi zomatira pawokha, zomwe zimatha kusindikizidwa mwachindunji mutayikidwa muzogulitsa. Msika wapakhomo, thumba lamtunduwu ndilotchuka kwambiri komanso likugwiritsidwa ntchito kwambiri. Chifukwa cha kuwonekera kwake bwino, ndi chisankho chabwino chopangira mphatso.