Dalilin bincike da bayani game da fashewa a sassan sassan da aka yiwa allura
Fasawa ya hada da filamentous fasa, microcracks, top fari, fatattakawa a saman sassan, ko rikicin tashin hankali da aka samu sakamakon manne sassan da mai gudu. Dangane da lokacin fatattaka, ana iya rarraba fasa zuwa lalatawa da fasa aikace-aikace. Babban dalilan sune kamar haka:
1.Processing:
(1) Idan matattarar aiki ta yi yawa, gudun yana da sauri, ana cika abubuwa da yawa, kuma allura da lokacin riƙewar matsa lamba sun yi tsayi da yawa, damuwar cikin zata yi yawa da tsaga.
(2) Daidaita saurin buɗewa da matsi don hana ɓarkewar ɓarna wanda ya haifar ta hanzari da ƙarfi zane na sassa.
(3) Daidaita daidaitaccen yanayin zafin jiki don yin sassa mai sauƙi don lalacewa, kuma daidaita daidaitaccen yanayin zafin jiki don hana bazuwar.
(4) Don hana layin walda, lalacewar robobi sakamakon ƙananan ƙarfin inji da fasa.
(5) Amfani mai kyau na sakin wakili, kula da sau da yawa don kawar da dutsen da ke haɗe da hazo da sauran abubuwa.
(6) Za'a iya kawar da damuwar saura na sassan ta hanzarta bayan an ƙirƙira don rage fashewar.
2 Mould al'amari:
(1) Fitar ya zama daidai. Misali, lamba da yanki-yanki na sandunan ejector ya kamata su wadatar, gangaren demoulding ya kamata ya wadatar, kuma farfajiyar rami ya kamata ta zama mai santsi sosai, ta yadda za a hana fasawa saboda saura danniyar damuwa da karfin waje ya haifar.
(2) Tsarin sashin bai kamata ya zama siriri ba, kuma ɓangaren miƙa mulki yakamata ya ɗauki canjin baka gwargwadon iko don kauce wa matsi na damuwa wanda ke haifar da kaifafan kaifi da sarkakiya.
(3) Yi ƙoƙarin amfani da ƙaramin ƙarfe don hana ƙaruwar damuwa na ciki wanda ya haifar da ƙimar raguwa tsakanin abubuwan sakawa da kayayyaki.
(4) Don sassan ƙasa masu zurfin, yakamata a saita bututun shigar da iska mai iska don hana samuwar matsi mara kyau.
(5) Sprue ya isa ya zubar da sprue kafin ya warke, saboda haka abu ne mai sauƙin sauka.
(6) Lokacin da aka haɗu da bushing tare da bututun ƙarfe, ya kamata a hana kayan sanyi da wuya daga jawowa da manna kayan aikin a madaidaicin mutu.
3.Matattun abubuwa:
(1) Abubuwan da aka sake amfani da su sun yi yawa, wanda ke haifar da ƙananan ƙarfin sassan.
(2) Danshi ya yi yawa, yana haifar da wasu robobi da za su iya amsawa da tururin ruwa, rage ƙarfi da fatattakawa.
(3) Kayan da kansa bai dace da yanayin da ake sarrafawa ba ko kuma ƙarancin inganci, kuma zai haifar da fashewa idan an gurɓata shi.
4.Machine gefen:
A plasticizing damar da allura gyare-gyaren inji ya zama dace. Idan damar yin filastik tayi kadan, to ba za'a cakuda shi sosai sai ya zama mai saurin murdawa, kuma idan yayi yawa to zai lalace.
Dalilin bincike na kumfa a cikin sassan kayan allura
Gas na kumfa (kumfa na kumfa) siriri ne matuka kuma na kumfa ne.Muna magana gabaɗaya, idan ana samun kumfa a lokacin buɗewar buɗaɗɗiya, matsala ce ta tsangwama ta gas.Maganin kumfa na kumfa saboda ƙarancin cika filastik ko ƙaramin matsi. Karkashin saurin sanyayawarwar mai, mai ke ja a kusurwa tare da rami yana haifar da asarar girma.
sharuɗɗan sulhu:
(1) energyara ƙarfin allura: matsin lamba, gudun, lokaci da kayan abu da yawa, da ƙara matsa lamba ta baya don yin juji mai cikawa.
(2) aseara yawan zafin jiki na kayan aiki da gudana cikin nutsuwa.Rage zafin jiki na abu, rage ƙyamar, da ƙara zafin jiki yadda ya dace, musamman ma yanayin zafin jiki na gida na ɓangaren kumfa da ke ɓangare.
(3) Theofar an saita a cikin lokacin farin ciki na ɓangaren don inganta yanayin kwararar bututun ƙarfe, mai gudu da ƙofar, da rage amfani da sabis na matsi.
(4) Inganta yanayin shaye-shaye na mutuwa.
Dalilin nazarin warpage na allurar da aka gyara sassan
Lalacewa, lankwasawa da murdadden sassan allura da aka sanya su galibi saboda yanayin kankancewar da ke cikin hanyar kwarararwa fiye da wacce take a tsaye, wacce ke sa bangarorin su wargaje saboda bambancin raguwa a kowane bangare. Bugu da ƙari, saboda babban damuwa na ciki a cikin sassan yayin cika allurar, shafin yana haifar da yanayin damuwa mai ƙarfi.Saboda haka, magana ta asali, ƙirar ƙirar tana ƙayyade yanayin warpage na sassan. Yana da matukar wahala ka kame wannan dabi'ar ta hanyar sauya yanayin gyaran. Maganar ƙarshe ga matsalar dole ne ta fara da ƙirar ƙira da haɓaka.Wannan sabon abu galibi ya samo asali ne ta fannoni masu zuwa:
1. Mould al'amari:
(1) A kauri da kuma ingancin kayayyakin ya zama daidai.
(2) Tsarin tsarin sanyaya yakamata ya sanya zafin jiki na kowane ɓangare na ramin juzu'in ya zama daidai, tsarin gating yakamata ya sanya kayan su gudana daidai, kauce wa warpage da aka samu ta hanyoyi daban-daban na kwarara da ƙimar raguwa, ta yadda yakamata yakara tashar shunt da babban tashar ɓangaren mawuyacin hali, da ƙoƙarin kawar da bambancin yawa, bambancin matsi da bambancin zafin jiki a cikin ramin maƙerin.
(3) Yankin miƙa mulki da kuma kusurwar kaurin aikin ya kamata ya zama mai santsi kuma ya kasance yana da kyakkyawar nunawa. Misali, kara rage aiki, inganta gogewar fuskar mutu, kuma a daidaita tsarin fitarwa.
(4) Shaye shaye sosai.
(5) Ta hanyar kara kaurin bango ko karawa shugaban yaki da warping, ana iya inganta karfin warping na bangaren ta hanyar karfafa haƙarƙari.
(6) Abubuwan da aka yi amfani da su a cikin mol ɗin ba su da ƙarfi sosai.
2.For Plastics:
Bugu da kari, robobin da aka yi wa kiris na iya amfani da tsarin kara kuzari wanda kara karfin sinadarin ke raguwa tare da karuwar saurin sanyaya kuma saurin raguwa yana gyara nakasar warpage.
3.Processing:
(1) Idan matsi na allura yayi yawa, lokacin riƙewa yayi tsayi, zafin zafin nama yayi ƙasa ƙwarai kuma gudun yana da sauri, damuwar cikin zata ƙaru kuma shafin ya bayyana zai bayyana.
(2) Tsarin zafin jiki ya yi yawa kuma lokacin sanyaya ya yi gajarta, don haka sassan suna da zafi sosai kuma haɓakar fitarwa tana faruwa.
(3) stressin ciki yana iyakance ta rage saurin dunƙulewa da matsin baya da rage ƙima yayin kiyaye mafi ƙarancin caji.
(4) Idan ya cancanta, za a iya aiwatar da sassauci ko ragargaza sassan don sauƙin warkewa da nakasawa.
Nazarin launuka masu launi, layi da furannin kayan kwalliyar allura
Wannan lahani galibi ana haifar dashi ne ta canza launin launi na masterbatch na sassan filastik. Kodayake canza launin masterbatch launi ya fi launi busassun foda da canza launi mai laushi dangane da kwanciyar hankali na launi, tsabtar ingancin launi da ƙaurawar launi, dukiyar rarrabuwa, ma'ana, matakin cakuda daidaiton launukan ƙasa a cikin robobi mai laushi ba shi da kyau, kuma samfuran da aka gama suna da banbancin launi na yanki.
(1) aseara yawan zafin jiki na bangaren ciyarwar, musamman zafin jiki a ƙarshen ƙarshen sashin ciyarwar, saboda yanayin zafin yana kusa ko ɗan ƙara sama da zafin zafin ɓangaren narkewar, don haka maƙallin ƙwallon ƙafa ya narke da zarar mai yuwuwa idan ya shiga sashen narkewa, yana inganta hadewar uniform tare da dilution, kuma yana kara damar hada ruwa.
(2) Lokacin da dunƙulewar sauri yake, ƙarfin narkewar zafin jiki da tasirin tasirin cikin ganga ana iya inganta ta ƙara ƙarfin baya.
(3) Gyara kayan kwalliya, musamman tsarin dakin wasa. Idan ƙofar tana da faɗi ƙwarai, tasirin tashin hankali ba shi da kyau kuma haɓakar zafin jiki ba ta da yawa lokacin da narkewar ta wuce. Sabili da haka, yakamata a rage ramin bel din launi.
Dalilin bincike game da ƙanƙantar da bakin ciki da aka yiwa sassa
A yayin aiwatar da allurar gyare-gyare, ɓacin rai na ɓacin rai abu ne gama gari. Babban dalilan wannan sune kamar haka:
1.Machine gefen:
(1) Idan ramin bututun ya yi yawa, zai sa kayan narkewar su dawo su ragu. Idan ya yi karami kaɗan, juriya za ta zama babba kuma yawan kayan ba zai isa ba.
(2) Idan karfin matsewa bai isa ba, tocilan zai ragu, don haka duba ko akwai wata matsala tare da tsarin kulle-kullen abin.
(3) Idan adadin yawan abin da yake cikin roba bai isa ba, ya kamata a zabi injin da yake da yawan roba domin duba ko dunbun da gangar suna sanye.
2 Mould al'amari:
(1) Kaurin bangon ya zama ya zama daidai kuma raguwar ya zama daidai.
(2) Tsarin sanyaya da dumama na sikila yakamata su tabbatar da cewa zafin jikin kowane ɓangare ya daidaita.
(3) Tsarin wasan motsa jiki ya zama mai santsi, kuma juriya bai kamata ya yi yawa ba. Misali, girman babban mai gudu, mai rarrabawa da ƙofa yakamata ya dace, ƙarewa ya isa, kuma yankin miƙa mulki ya zama madauwari.
(4) Ga sassa na bakin ciki, yakamata a ƙara yawan zafin jiki don tabbatar da kwararar abu mai laushi, kuma ga ɓangarorin bango masu kauri, yakamata a rage zafin muddin.
(5) Ya kamata a saita ƙofar a daidaitacciya, kuma ya kamata a saita ta a cikin ɓangaren bango mai kauri na aikin kamar yadda ya kamata, kuma ya kamata a ƙara ƙarar kayan abu mai kyau da kyau.
3.For Plastics:
Lokacin kankancewar robobin da aka yiwa lu'ulu'u ya fi na robar da ba ta lu'ulu'u ba. Wajibi ne don ƙara adadin kayan aiki ko ƙari a cikin robobi don hanzarta ƙirar ƙarfe da rage baƙin ciki.
4.Processing:
(1) Idan zafin jikin ganga ya yi yawa kuma ƙarar ta canza sosai, musamman ma yawan zafin jikin goshin goshi, yakamata a ɗaga zafin filastik da rashin ruwa mai kyau don tabbatar da aiki mai kyau.
(2) Idan matsi na allura, saurin gudu da na baya sun yi kasa sosai kuma lokacin allurar ya yi kadan, matsin lamba, saurin gudu da karfin baya sun yi yawa kuma lokaci yayi tsayi, hakan na haifar da raguwa saboda walƙiya
(3) Lokacin da matashin ya yi yawa, za a shanye matsafan allurar. Idan matashin ya yi kankanta, matsi na allura ba zai isa ba.
(4) Ga sassan da basa buƙatar daidaito, bayan allurar da matsin lamba, matsakaicin waje yana da matattakala kuma yayi tauri, kuma sandwich ɗin yana da taushi kuma ana iya fitarwa. Idan aka bar sassan su huce a hankali a cikin iska ko ruwan zafi, ɓacin ran zai zama mai sauƙi ne kuma ba zai bayyana ba, kuma ba zai shafi amfani ba.
Dalilin bincike na lahani na bayyane a cikin sassan da aka yi da allura
Ana iya ganin samfura masu haske na narkewar tabo, motsa jiki, fashewar polystyrene da plexiglass a wasu lokuta ta hanyar haske. Kwayoyin polymer na daman amfani suna da kwatankwacin motsi mai nauyi, kuma an nuna bambancin yawan kwaya tsakanin polymer da bangaren da ba sa fuskantar juna
mai ƙarfi:
(1) Gusar da tsangwama da gas da sauran ƙazanta, da bushe filastik isasshe.
(2) Rage zafin jiki na kayan, daidaita ƙwan zafin ganga a cikin sashe, da ƙara zafin jiki yadda ya dace.
(3) Kara karfin allura da rage saurin allura.
(4) orara ko rage ƙarfin bayan baya na pre-molding da rage saurin dunƙule.
(5) Inganta yanayin sharar mai gudu da rami.
(6) Tsabtace bututun ƙarfe, mai gudu da ƙofar don yiwuwar toshewa.
(7) Bayan lalatawa, ana iya amfani da hanyar annealing don kawar da Hauka: polystyrene a 78 ℃ na mintina 15, ko 50 ℃ na awa 1, don polycarbonate, mai zafin sama da 160 ℃ na minutesan mintoci.
Dalilin nazarin launi mara daidai na sassan allura da aka gyara
Babban sanadin da mafita na launi mara kyau na allurar da aka ƙera abubuwa kamar haka:
(1) Yaduwar launin launi ba shi da kyau, wanda yakan haifar da bayyanar alamu kusa da ƙofar.
(2) kwanciyar hankali na zafin robobi ko launuka ba shi da kyau. Domin daidaita launin samfuran, dole ne a daidaita yanayin samarwa, musamman kayan zafin jiki, adadi mai yawa da zagayen samarwa.
(3) Don robobi masu ƙyalƙyali, yanayin sanyaya na kowane ɓangaren samfurin ya zama daidai gwargwadon yadda zai yiwu. Ga sassan da ke da banbancin kaurin bango, ana iya amfani da launuka don rufe bambancin launi. Don sassan da ke da kaurin bango iri ɗaya, ya kamata a gyara yanayin zafin jiki da kuma zafin jikin mutum.
(4) Siffar, ƙofar ƙofa da matsayin ɓangaren suna da tasiri a kan cika filastik, wanda ke haifar da bambancin launi a wasu ɓangarorin ɓangaren, kuma ya kamata a gyara shi idan ya cancanta.
Dalilin nazarin launi da ƙyalli na ingancin kayayyakin da aka ƙera
A karkashin yanayi na yau da kullun, kyallen kayan inkin da aka sanya sune galibi ana tantance su ne da nau'in filastik, mai launi da kuma karewar fuska. Amma galibi kuma saboda wasu dalilai, launin saman da lahanin laushi, launi mai duhu da sauran lahani. mafita sune kamar haka:
(1) Maƙallan yana da ƙarancin ƙarewa, tsatsa a saman ramin da ƙarancin sharar.
(2) Akwai lahani a cikin tsarin lalata kayan sifa, don haka ya zama dole a ƙara sanyaya da kyau, mai gudu, mai goge goge, mai rarrabu da ƙofar.
(3) Kayan zafin jiki da yanayin zafin jiki sun yi ƙaran, idan ya cancanta, ana iya amfani da hanyar dumama ƙofar gida.
(4) Matsayin sarrafawa yayi ƙasa ƙwarai, gudun ma yayi jinkiri sosai, lokacin allura bai isa ba, kuma matsin lamba baya isa, wanda ke haifar da ƙaramin aiki da duhu.
(5) Robobi yakamata a sanya su sosai, amma ya kamata a hana lalata kayan. Ya kamata dumama ya kasance barga kuma sanyaya ya kamata ya isa, musamman ga bango masu kauri.
(6) Don hana abu mai sanyi daga shiga sassan, yi amfani da bazara mai kulle kai ko rage zafin zafin bututun idan ya cancanta.
(7) Abubuwan da aka sake yin amfani da su da yawa, rashin ingancin robobi ko launuka, tururin ruwa ko wasu ƙazamta, da ƙarancin man shafawa da ake amfani da su.
(8) carfin matsewa ya isa.
Dalilin binciken kwalliya a cikin kayayyakin da aka ƙera
Haɗakar kayayyakin allura da aka ƙera, ciki harda kumfa da kuma pores na ciki.Babban dalilin lahani shine tsangwama na gas (galibi tururin ruwa, gas mai narkewa, gas mai narkewa da iska).
1.Machine gefen:
(1) Akwai matattarar kusurwa na kwararar abu yayin da ganga ko dunƙule take sawa ko kan roba da zoben roba suka wuce, wanda zai ruɓe idan aka dumama na dogon lokaci.
(2) Idan abun dumama ya fita daga lamuran sa, duba ko kayan dumamawan basu da iko. Tsarin kirkirar dunƙule na iya haifar da maganin mutum ko kuma kawo iska cikin sauƙi.
2 Mould al'amari:
(1) Karancin hayaki.
(2) A gogayya juriya na mai gudu, ƙofa da rami a cikin mold ne babba, wanda sa gida zafi fiye da kima da kuma bazuwar.
(3) Rashin daidaiton rarraba ƙofa da rami da kuma tsarin sanyaya mara ma'ana zai haifar da dumamar rashin daidaito da dumama yankin ko toshe hanyar wucewar iska.
(4) Hanyar sanyaya ta malalo cikin rami.
3.For Plastics:
(1) Idan danshi na robobi yayi yawa, yawan kayan da aka sake amfani da su da aka kara yayi yawa ko kuma akwai kwakwalwan kwamfuta masu cutarwa (kwakwalwan suna da saukin lalacewa), robobin ya kamata a shanya su sosai yadda yakamata kuma a cire ragowar.
(2) Sha jinin danshi daga sararin samaniya ko daga mai kala, shima mai launin ya bushe, ya fi kyau sanya na'urar bushewa a kan inji.
(3) Adadin man shafawa da na karfafawa wanda aka kara a robobi ya yi yawa ko an gauraya shi ba daidai ba, ko kuma roba ita kanta tana da abubuwan narkewa masu canzawa.
(4) Roba an gurbata ta kuma hade ta da wasu robobi.
4.Processing:
(1) Lokacin da yanayin zafin jiki, matsin lamba, saurin gudu, matsin lamba na baya da kuma saurin narkewar motsin mota ya yi yawa don haifar da bazuwar, ko kuma matsi da saurin sun yi kadan, lokacin allura da matsi ba su isa ba, kuma karfin baya baya ma low, crazing yana faruwa ne saboda ƙarancin yawa saboda gazawar samun matsin lamba, saboda haka zazzabi mai dacewa, matsa lamba, sauri da lokaci za'a saita kuma saurin allura mai yawa zai karbu.
(2) pressurearamin baya da sauri yana sanya iska ta shiga cikin ganga a sauƙaƙe. Tare da kayan narkewa da ke shiga cikin sifar, lokacin da sake zagayowar ya yi tsayi da yawa, kayan da aka narkar zai narke yayin da ya yi tsayi da yawa a cikin ganga.
(3) materialarancin kayan abu mai yawa, babban abin ciyarwa mai yawa, ƙananan zafin zafin jiki ko ƙarancin zafin jiki mai ƙarancin ƙarfi duk yana shafar kwararar da matsin kayan kayan da inganta haɓakar kumfa.
Nazarin abubuwan da ke haifar da haɗin haɗin walda a cikin sassan da aka yi da allura
Lokacin da zafin robobin da aka zubi suka hadu da ramin saka, yankin tare da saurin gudu mai gudana da kuma yankin tare da katse ciko da ke kwarara a cikin ramin da aka kera, za a samar da hadin linzamin hadewar ne saboda rashin hadewar da aka yi. Cikowa, za a samar da kifin mai walda, kuma karfin hadin walda ba shi da kyau. Babban dalilan sune kamar haka:
1.Processing:
(1) Matsawar allura da sauri sun yi ƙasa ƙwarai, kuma yawan zafin da ganga da kuma yanayin zafin jiki sun yi ƙasa kaɗan, wanda ke haifar da narkewar kayan da ke shigowa cikin sifar ya huce da wuri kuma haɗin haɗin ya bayyana.
(2) Lokacin da karfin allura da sauri suka yi yawa, za a samu feshi da hadin fuska.
(3) Danko da yawa na robobi sun ragu tare da karuwar gudu da matsa lamba ta baya.
(4) Filastik ya kamata a shanya shi da kyau, ya kamata a sake amfani da kayan da aka sake yin amfani da su, wakilin da yawa na saki ko kuma rashin inganci zai bayyana hadewar mahadi.
(5) Rage ƙarfin matsawa, mai saukin shaye shaye.
2 Mould al'amari:
(1) Idan akwai ƙofofi da yawa a cikin rami ɗaya, yakamata a saita ƙofar a daidaitacciya ko kusa da yadda za'a iya haɗa mahaɗin walda.
(2) The shaye tsarin ya kamata a kafa idan akwai wani matalauta shaye a Fusion hadin gwiwa.
(3) Idan mai gudu yana da girma sosai, girman tsarin wasan motsa jiki bai dace ba, ya kamata a buɗe ƙofar don guje wa narkewar da ke gudana a kewayen ramin sakawa, ko kuma a yi amfani da abun shigar kamar yadda zai yiwu.
(4) Idan kaurin bangon ya canza da yawa ko kuma kaurin bangon yayi yawa sosai, kaurin bangon sassan ya zama daidai.
(5) Idan ya cancanta, yakamata a saita rijiyar haɗuwa a mahaɗin haɗin don raba haɗin haɗin daga sassan.
3.For Plastics:
(1) Ya kamata a haɗa mai da man shafawa a robobi tare da ƙarancin ruwa ko ƙwarin zafi.
(2) Robobi na dauke da kazamai da yawa, idan da hali, don canza ingancin filastik.
Bincike kan dalilin fashewar rawar jijiyoyi a cikin sassan da aka sassaka
PS da sauran sassan roba masu tsauri a ƙofar kusa da farfajiyar, zuwa ƙofar a matsayin cibiyar samuwar kumbura mai ɗimbin yawa, wani lokacin ana kiranta da jarring Dalilin shi ne cewa lokacin da narkewar narkewar ya yi yawa kuma an cika sifar a cikin sigar na gudana mai gudana, kayan da suke a karshen karshe zasu dunkule kuma su kulla da zaran sun sadu da farfajiyar ramin, sannan narkakken abun daga baya zai fadada ya kuma ragu, kuma kayan sanyi zasu ci gaba da zuwa. Ci gaba da canzawa na tsari yana sa kayan abu ya zama sifar alamomin hira a yayin ci gaba.
mai ƙarfi:
(1) A yanayin zafin jiki ma ya kamata a kara shi don kara yawan ganga, musamman yawan zafin jiki na bututun ƙarfe.
(2) An ƙara matsa lamba da sauri don cika ramin da sauri.
(3) Inganta girman ƙofar kuma hana ƙofar ta kasance babba.
(4) Shayewar mould yakamata ya zama mai kyau, kuma yakamata a saita wadatattun kayan sanyi.
(5) Kada a tsara sassan sirara.
Dalilin bincike na kumburi da kumfawa na allurar da aka ƙera
Wasu bangarorin filastik suna bayyana kumburi ko kumfa a bayan murfin karfe ko a cikin sassa masu kauri sosai bayan gyare-gyaren da lalatawa.Wannan ya faru ne saboda fadada iskar gas din da robar ke fitarwa wacce bata gama sanyaya ba kuma take da tauri a karkashin aikin azabar matsin lamba.
Solutions:
1.Yin tasiri mai sanyaya. Rage zafin jiki na mudu, tsawaita lokacin buɗewar mold, rage bushewa da zafin jiki na aiki na kayan.
2. Zai iya rage saurin cikawa, sake zagayowar tsari da juriya mai gudana.
3. kara girman rikewar lokaci da lokaci.
4.Gyara yanayin cewa bangon yayi kauri sosai ko kaurin ya canza sosai.
