Gabatarwa: Lokacin da muka ɗauki kwalban shamfu na gama-gari, za a sami tambarin PET a ƙasan kwalbar, wanda ke nufin cewa wannan samfurin kwalban PET ne. Ana amfani da kwalabe na PET a masana'antar wanki da kulawa kuma galibi suna da girma. A cikin wannan labarin, mun fi gabatar da kwalaben PET a matsayin kwandon filastik.
kwalaben PET kwantenan filastik ne daga PETkayan filastikta hanyar sarrafawa ta mataki ɗaya ko mataki biyu. PET filastik yana da halaye na nauyin haske, babban nuna gaskiya, juriya mai tasiri kuma ba sauƙin karya ba.
Tsarin sarrafawa
1. Fahimtar preform
The preform samfurin allura ne. A matsayin tsaka-tsakin samfurin da aka kammala don gyare-gyaren biaxial stretch busa na gaba, an kammala ƙwanƙarar ƙirar preform yayin matakin gyaran allura, kuma girmansa ba zai canza ba yayin dumama da shimfiɗawa. Girman, nauyi, da kauri na bango na preform sune abubuwan da muke buƙatar kulawa sosai lokacin busa kwalabe.
A. Tsarin amfrayo
B. Kwalba gyare-gyaren amfrayo
2. PET kwalban gyare-gyare
Hanyar mataki daya
Hanyar kammala allura, mikewa da busa a cikin injin daya ake kira hanyar mataki daya. Hanyar mataki daya shine yin mikewa da busa bayan an sanyaya preform bayan gyaran allura. Babban fa'idodinsa shine ceton wutar lantarki, yawan aiki mai yawa, babu aikin hannu da rage gurbatar yanayi.
Hanyar mataki biyu
Hanya mai mataki biyu ta raba allura da mikewa da busa, kuma ana yin su a kan injina guda biyu a lokuta daban-daban, wanda aka fi sani da aikin shimfida allura da busa. Mataki na farko shine a yi amfani da injin gyare-gyaren allura don yin allurar riga-kafi. Mataki na biyu shi ne sake dumama yanayin zafin dakin da kuma shimfiɗa shi a cikin kwalba. Amfanin hanyar matakai biyu shine siyan preform don gyare-gyaren busa. Zai iya rage zuba jari (basira da kayan aiki). Ƙararren preform ya fi ƙanƙanta fiye da na kwalban, wanda ya dace da sufuri da ajiya. Za a iya busa preform ɗin da aka samar a lokacin kashe-kashe a cikin kwalba a cikin lokacin kololuwar.
3. Tsarin gyare-gyaren kwalban PET
1. PET kayan:
PET, polyethylene terephthalate, wanda ake magana da shi azaman polyester. Sunan Ingilishi shine Polyethylene Terephthalate, wanda aka samar ta hanyar polymerization reaction (condensation) na albarkatun albarkatun guda biyu: terephthalic acid PTA (terephthalic acid) da ethylene glycol EG (ethylicglycol).
2. Sanin kowa game da bakin kwalba
Bakin kwalban yana da diamita na Ф18, Ф20, Ф22, Ф24, Ф28, Ф33 (daidai da girman T na bakin kwalban), kuma ana iya raba ƙayyadaddun zaren zuwa: 400, 410, 415 (daidai da adadin adadin. zaren juya). Gabaɗaya magana, 400 shine juyawa zaren 1, 410 shine zaren 1.5, kuma 415 shine babban zaren 2.
3. Jikin kwalba
PP da PE kwalabe galibinsu launuka ne masu ƙarfi, PETG, PET, PVC galibi masu gaskiya ne, ko masu launi da bayyanannu, tare da ma'anar fassarori, kuma ba a cika amfani da launuka masu ƙarfi ba. Hakanan ana iya fesa kwalaben PET. Akwai madaidaicin wuri a kasan kwalaben da aka ƙera. Ya fi haske a ƙarƙashin haske. Akwai layin haɗin gwiwa a kasan kwalaben da aka yi masa allura.
4. Daidaitawa
Babban samfuran da suka dace don busa-kwalabe sune matosai na ciki (wanda akafi amfani da su don kayan PP da PE), manyan iyakoki (wanda aka fi amfani da shi don PP, ABS da acrylic, kuma masu amfani da lantarki, da aluminum mai lantarki, galibi ana amfani da su don fesa toner), murfin famfo. (wanda aka fi amfani da shi don jigon ruwa da ruwan shafa fuska), iyakoki masu iyo, madafunan juyewa (fili-fili da iyakoki masu iyo galibi ana amfani da su don manyan layukan sinadarai na yau da kullun), da sauransu.
Aikace-aikace
Ana amfani da kwalaben PET sosai a masana'antar kayan kwalliya,
musamman a harkar wanki da kulawa,
ciki har da shamfu, kwalabe na shawa, toner, kwalabe na cire kayan shafa, da sauransu.
duk an busa.
Abubuwan la'akari da siyan
1. PET ɗaya ne kawai daga cikin kayan da ake samu don kwalabe. Hakanan akwai kwalabe na PE (mai laushi, launuka masu ƙarfi, ƙirƙirar lokaci ɗaya), kwalabe na PP (mafi wuya, launuka masu ƙarfi, ƙirƙirar lokaci ɗaya), kwalabe na PETG (mafi kyawun bayyananni fiye da PET, amma ba yawanci ba. amfani da shi a kasar Sin, babban farashi, babban sharar gida, ƙirƙirar lokaci ɗaya, kayan da ba za a iya sake yin amfani da su ba), kwalabe na PVC (mafi wuya, ba abokantaka na muhalli, ƙarancin haske fiye da PET, amma haske fiye da PP da PE)
2. Kayan aiki guda ɗaya yana da tsada, kayan aiki guda biyu yana da arha
3. PET kwalban molds ne mai rahusa.
Lokacin aikawa: Mayu-22-2024