1. Al'amarin Aibi**
Yayin aiwatar da gyaran allura, wasu yankuna na kogon mold bazai fuskanci isasshen matsi ba.Yayin da narkakken robobin ya fara yin sanyi, wuraren da ke da kaurin bango mafi girma suna raguwa a hankali, suna haifar da damuwa.Idan ƙaƙƙarfan saman samfurin da aka ƙera bai isa ba kuma ba a cika shi da isassun narkakkar abu ba, alamun nutsewar saman suna bayyana.Ana kiran wannan al'amari "alamomin nutsewa."Waɗannan yawanci suna bayyana a yankuna inda robobin narkakkar ya taru a cikin kogon ƙira da kuma ɓangarorin samfura masu kauri, kamar a ƙarfafa haƙarƙari, ginshiƙai masu goyan baya, da mahadar su tare da saman samfurin.
2. Dalilai da Magani ga Alamun nutsewa
Bayyanar alamun nutsewa akan sassan da aka ƙera allura ba wai kawai yana lalata sha'awar kyan gani ba amma kuma yana lalata ƙarfin injin su.Wannan al'amari yana da alaƙa sosai da kayan filastik da aka yi amfani da su, tsarin gyaran allura, da ƙirar samfuran duka da ƙirar.
(i) Game da Kayan Filastik
Filastik daban-daban suna da ƙimar raguwa daban-daban.Robobin kristal, irin su nailan da polypropylene, suna da sauƙin kamuwa da alamun nutsewa.A cikin tsarin gyare-gyare, waɗannan robobi, idan sun yi zafi, suna canzawa zuwa yanayi mai gudana tare da tsararrun ƙwayoyin cuta.Bayan an yi musu allura a cikin rami mai sanyi, waɗannan ƙwayoyin suna daidaitawa a hankali don samar da lu'ulu'u, wanda ke haifar da raguwar girma.Wannan yana haifar da ƙananan girma fiye da yadda aka tsara, don haka yana haifar da "alamomin nutsewa."
(ii) Daga Hangen Tsarin Gyaran allura
Dangane da tsarin gyare-gyaren allura, abubuwan da ke haifar da alamun nutsewa sun haɗa da rashin isassun matsi, saurin allura, ƙarancin ƙima ko zafin kayan abu, da rashin isasshen lokacin riƙewa.Don haka, lokacin saita sigogin aiwatar da gyare-gyare, yana da mahimmanci don tabbatar da yanayin gyare-gyaren da ya dace da isassun matsi don rage alamun nutsewa.Gabaɗaya, tsawaita lokacin riƙewa yana tabbatar da cewa samfurin yana da isasshen lokacin sanyaya da ƙarar narkakken abu.
(iii) Mai alaƙa da Samfur da Ƙirƙirar Ƙira
Babban abin da ke haifar da alamun nutsewa shine kaurin bango mara daidaituwa na samfurin filastik.Misalai na yau da kullun sun haɗa da samuwar alamomin nutsewa a kusa da ƙarfafa haƙarƙari da ginshiƙai masu goyan baya.Haka kuma, abubuwan ƙirar ƙira kamar ƙirar tsarin mai gudu, girman kofa, da ingancin sanyaya suna tasiri sosai ga samfurin.Sakamakon ƙarancin ƙarancin zafin jiki na robobi, yankuna da ke da nisa daga bangon ƙira suna yin sanyi a hankali.Don haka, yakamata a sami isassun narkakkar kayan da za su cika waɗannan yankuna, suna buƙatar dunƙule injin gyare-gyaren allura don kula da matsa lamba yayin allura ko riƙewa, hana komawa baya.Akasin haka, idan masu tseren gyare-gyaren sun yi tsayi da yawa, ko kuma idan ƙofar ta yi ƙanƙara kuma ta yi sanyi da sauri, filastik mai ƙarfi na iya hana mai gudu ko ƙofar, wanda zai haifar da raguwa a cikin rami na mold, yana ƙarewa a cikin nutsewar samfurin. alamomi.
A taƙaice, abubuwan da ke haifar da alamomin nutsewa sun haɗa da ƙarancin cikar ƙura, ƙarancin robobi, ƙarancin allura, rashin isasshen ƙarfi, canjin da ba a kai ba zuwa matsa lamba, gajeriyar lokacin allura, saurin allura a hankali ko sauri (yana kaiwa ga iska mai kama), ƙarancin girma ko rashin daidaituwa. Ƙofofi (a cikin nau'i-nau'i masu yawa), toshewar bututun ƙarfe ko makada mara aiki mara kyau, zafin narke da bai dace ba, yanayin zafin jiki mara kyau (wanda ke haifar da nakasawa a haƙarƙari ko ginshiƙai), ƙarancin iska a wuraren alamar nutsewa, bango mai kauri a hakarkarinsa ko ginshiƙai, sawa mara kyau. -Bawul ɗin dawowar da ke haifar da koma baya mai yawa, matsawar kofa mara kyau ko hanyoyin kwarara masu tsayi fiye da kima, da ƙwanƙwasa bakin ciki ko dogayen masu gudu.
Don rage alamun nutsewa, ana iya amfani da waɗannan magunguna masu zuwa: haɓaka ƙarar allurar narke, haɓaka bugun jini na narkewa, ƙara ƙarfin allura, haɓaka ƙarfin riƙewa ko tsawaita lokacin sa, tsawaita lokacin allura (amfani da aikin da aka riga aka fitar), daidaita allura. gudun, faɗaɗa girman ƙofar ko tabbatar da madaidaicin kwarara a cikin gyare-gyare masu yawa, tsaftace bututun ƙarfe na kowane abu na waje ko maye gurbin makada mara aiki mara kyau, daidaita bututun bututun da tsare shi da kyau ko rage matsi na baya, inganta yanayin narkewa, daidaita yanayin zafin jiki, la'akari da yanayin zafi. tsawaita lokacin sanyaya, gabatar da tashoshi na iska a yankuna masu alamar nutsewa, tabbatar da ko da kauri bango (ta amfani da injin ɗin da aka taimaka da iskar gas idan ya cancanta), maye gurbin bawul ɗin da ba a dawo da sawa ba, sanya ƙofar a yankuna masu kauri ko ƙara yawan ƙofofin, da daidaita mai gudu. girma da tsawo.
Wuri: Ningbo Chenshen Plastic Industry, Yuyao, Ningbo, Lardin Zhejiang, Sin
Ranar: 24/10/2023
Lokacin aikawa: Oktoba-30-2023