A. Bhala imibuzo engenanto: (inqaku eli-1 kumbuzo ngamnye, amanqaku ali-134 ewonke)
1. Umatshini wokubumba inaliti unokwahlulwa-hlulwa ube ziinkqubo ezinkulu ezine, iinkqubo ezine eziphambili zezi: inkqubo yenaliti, ukuvulwa komngundo kunye nenkqubo yokuvala, inkqubo yokuhambisa ngesanti kubunzulu baphantsi, kunye nenkqubo yolawulo lombane.
2. Iqondo lobushushu ekubunjweni ngenaliti yile: iqondo lobushushu bombhobho, ubushushu besikhunta, ukomisa ubushushu, ubushushu beoyile ye-hydraulic, kunye neqondo lobushushu elime.
3. Iindlela zokubotshwa komatshini wokubumba inaliti zezi: uhlobo loxinzelelo ngqo, uhlobo lwengwenya, njl.
4. Ixesha ekubunjweni ngenaliti lithetha: ixesha lenaliti, ixesha lokubamba uxinzelelo, ixesha lokupholisa, ixesha lokujikeleza, ixesha lokukhusela uxinzelelo, njl.
5. Iindidi eziqhelekileyo zoomatshini bokubumba inaliti baseJapan zibandakanya: iNissei, iNippon Steel, iFanuc, iSumitomo, iToshiba, njl.
6. Isikrufu somatshini wokubumba inaliti sahlulwe sangamacandelo amathathu: icandelo lokuqala licandelo lokondla, icandelo eliphakathi licandelo leplastikhi, kwaye icandelo elingasemva licandelo lokulinganisa.
7. Izibuko leglu lemodeli linokwahlulwa libe lilo: iglu yenqaku, iglu yefeni, iglu efakwe emanzini, imbaleki eshushu, iglu ethe nkqo, njl.
8. Igama leekhemikhali lezinto zePC yile: i-polycarbonate, eyaziwa njenge-bulletproof irabha, ubushushu be-260-320 ℃, ubushushu bokomisa i-100-120 ℃.
9. Izinto eziphambili zeplastiki ezibonakalayo zenziwe nge-resin. Iiplastiki ezine zobunjineli ezisetyenziswa ngokuqhelekileyo zezi: I-PC, i-ABS, i-PA kunye ne-POM.
10.Iqondo lobushushu beglasi kwiPC yi-140 ℃, ireyithi yokuncipha yi-0.4% -0.8%; ubushushu bokomisa yi-110 ± 5 ℃
11. Ngokutsho kwezizathu, iintlobo zeemveliso zeplastiki zingahlulwa zibe: uxinzelelo lwe-thermal, uxinzelelo lwethishu, kunye noxinzelelo lwenxalenye.
12. Zintathu iindlela zokuhlola uxinzelelo lwangaphakathi lweemveliso: isixhobo, ifuthe, kunye neyeza;
13. Ubushushu obupheleleyo bomthombo wobushushu kwinkqubo yokubumba inaliti: ubushushu bokuhambisa qhu, ukuhambisa ubushushu, ubushushu be-shear, ubushushu bokukhuhlana;
14. Indlela yoqhagamshelo oluchanekileyo yendlela yokuhambisa amanzi yokuhamba komngundo kufuneka ibe: enye inye kunye nokunxibelelana koontanga;
15. Zeziphi iindidi ezintathu eziphambili zoxinzelelo lwasemva: amandla eplastikhi, umgangatho weplastikhi, kunye nokuchaneka kweplastikhi;
16. Ixesha lokucoca komphezulu womngundo ngexesha lenkqubo yokuvelisa: 2H / ixesha
17. Iiplastikhi ezine zobunjineli ezivunyiweyo zezi: PC, POM, PA, PBT.
18. Isimo esiqhelekileyo sokukhulula isikulufu xa usenza iimveliso ezichanekileyo eziphezulu kumatshini we-100T yile: 3-5mm
I-19.7S ibhekisa koku: ukucoca, ukulungisa, ukutshayela, ukucoca, ukufunda nokubhala, ukhuseleko nokonga.
20. Ixesha lokuzaliswa kwengxelo yemihla ngemihla ngexesha lenkqubo yokuvelisa yile: 2H / ixesha.
21. Kwinkqubo yokulayisha ukungunda, ukungunda okunzulu ngemilomo kungaphezulu kwe-40MM, kufuneka kuthathe indawo yombhobho owandisiweyo
22. Uxinzelelo lwangaphakathi luxinzelelo oluveliswe kwimathiriyeli ngenxa ye-crystallization, ukuqhelaniswa, ukuncipha kunye nezinye izizathu zokungabikho kwamandla angaphandle
23. Isikrufu somatshini wokubumba inaliti singahlulahlulwa sibe kukuhambisa icandelo, ucinezelo icandelo kunye necandelo lokulinganisa
24. Xa kukho umgangatho ongaqhelekanga kwimveliso, inkokeli yeqela iya kucela ingcali ukuba ijongane nayo kungaphelanga nemizuzu eli-10 emva kokufumana ulwazi olungaqhelekanga lomgangatho. Ukuba uchwephesha akakwazi ukusombulula kungaphelanga iyure enye, kufuneka anike ingxelo kumphathi. Ukuba umphathi-mkhosi akanakusombulula zingaphelanga iiyure ezimbini, kufuneka anike ingxelo kumphathi wecandelo. Ukuba umphathi wecandelo akakwazi ukusombulula ingxaki zingaphelanga iiyure ezi-4, kufuneka anike ingxelo kumphathi wezoqoqosho (usekela-mphathi).
25. Zeziphi iindlela zokulungisa ukungunda ekufuneka zenziwe ngexesha lenkqubo yokuvelisa? Ifom yokulungisa umngundo, ifom yolawulo lwebatch, ingxelo yemveliso yemihla ngemihla.
26. Ngokwesiqhelo ukuphalazwa kokuphambuka kwesikhunta kwenziwa yimbaleki ephambili, imbaleki, isango kunye neslug ebandayo kakuhle
27. Iziphene eziqhelekileyo ezichaphazela iimveliso ezibunjiweyo zenaliti zibandakanya iincopho zebatch, ukunqongophala kweglu, ukuncipha, amanqaku okuhamba, amanqaku e-weld, ukujikajika, amanqaku oxinzelelo kunye notshintsho olubonakalayo.
28.Umthombo wobushushu wenkqubo ye-pre-plastic metering _ ubushushu bokukhuhlana kunye nobushushu be-viscous ngaphakathi kweplastiki, ukufudumeza into yokufudumeza.
29. Ngokwesiqhelo ivolumu yenaliti ibekwe kakuhle phakathi kwe-30% ~ 85% yomthamo wenaliti ephezulu yomatshini wenaliti yokubumba.
30. Ukuba iqondo lobushushu sokubumbela yahlukile, isilungiseleli seglosi imveliso iya kwahluka. Xa isikhunta sokubumbela singumbala obunjiweyo, ukuba ubushushu besikhunta bungaphezulu, isol iyalingana nomphezulu womhlaba, kwaye imveliso yokubumba yenaliti ijongeka ngathi intle ngakumbi, kungenjalo i-gloss iya kuhambelana ngakumbi. Iqondo lobushushu sokubumba rhoqo.
31. Ubukhulu be-screw compression ratio, ubukhulu beepellets buya kuba, ngokukhawuleza ukudluliswa kobushushu phakathi kweepellets, kokukhona isiphumo sokusasazeka komgubo, kodwa kokukhona ukuxhathisa ukuhambisa kunye nokuncinci kwenani leplastikhi.
32. Owona msebenzi uphambili wevalve-pinch valve kukuthintela ukubuyela umva kweplastikhi ngexesha lokubumba ngenaliti kunye nenqanaba lokubamba uxinzelelo.
33. Ukucinezela kade ukubamba iswitshi kuya kubangela ukuba uxinzelelo lwenaliti lonyuke, kwaye lukhanyise.
34. I-POM ishunqulelwe njenge-polyoxymethylene ngesiTshayina. Sisixhobo esili-crystalline esinezinto ezintle ezizinzileyo. Ubushushu obunyibilikayo bunokusetwa phakathi kwe-190-210 ℃, kwaye ubushushu besikhunta kufuneka bube ngaphezulu kwe-90 ℃.
35. Ukuba icandelo leplastiki liyancipha, inyathelo lokuqala kufuneka libe lelona xabiso liphantsi lentsalela.
36. Yalatha amagama amalungu enkqubo yokugcwalisa: 1. Umlomo, 2. Intloko yokujija, 3. Iringi engabuyisiyo 4. Umgqomo 5. Isikrufu 6. Isangqa sokufudumeza 7. Isangqa sokupholisa. Ujije kumatshini yokubumba inaliti lungohlulwa lube kwicandelo lokuhambisa, icandelo ucinezelo kunye necandelo wekhadi
37. Ubushushu obupheleleyo bomthombo wobushushu kwinkqubo yomlinganiso wenaliti yokubumba: ubushushu bekholaji, ubushushu bokuqhuba, ubushushu be-shear, ubushushu bokukhuhlana;
38. Izinto zeplastikhi zingahlulwa zibe ziiplastikhi ze-thermoplastic kunye ne-thermosetting plastiki ngokweendlela zabo ezahlukeneyo zokufudumeza.
39. Xa umatshini wokubumba we-hydraulic usebenza, iqondo lobushushu leoyile ye-hydraulic kufuneka ilawulwe phakathi kwe-20-65 ° C.
40. Izinto zokubumba ezineplaten mold kunye ne-platen mold ezine-buckle zangaphandle kunye nomda wokutsala, kuya kufuneka unakekele ukuseta umgama wokukhupha
41. Uxinzelelo lwangaphakathi luxinzelelo oluveliswe ngaphakathi kwezinto ngenxa ye-crystallization kunye nokuziqhelanisa nokungabikho kwamandla angaphandle.
B. Imibuzo emininzi yokukhetha (amanqaku ama-2 kumbuzo ngamnye, amanqaku angama-40 ewonke)
1. Ezi plastiki zeplastikhi zilandelayo (C) A. ABS B.PMMA C.PA66 D.PVC
2. Xa kuthelekiswa neeplastikhi ezingekho crystalline, iiplastikhi zekristall (A) A. I-crystalline shrinkage inkulu B. Amorphous plastiki shrinkage is greater
3.Ukuchaneka ngenaliti yokuchaneka, ubungakanani bentsalela ngokubanzi busetelwe (B) A.0-2MM B.3MM-5MM C.7MM-10MM
4. Kwizixhobo zePC, (A) kufuneka zisetyenziselwe ukuphucula ubumanzi. A. Yandisa ubushushu benaliti B. Yandisa isantya senaliti
5. Xa umgangatho womgangatho wemveliso kufuneka uphakame okanye xa kufuneka ukunqanda ukusasazeka kwe-viscosity kunye neziphene ezijikelezayo ngexesha lenaliti, ______ inqanaba lenaliti kunye noxinzelelo lwe ______ zihlala zisetyenziswa. (C) A. phezulu, phantsi B. phezulu, phezulu C. phantsi, phezulu D. phantsi, ezantsi
6.Inaliti yokubumba yindlela yokubumba yokusebenza ngemveliso (C). A, ephantsi B, ngokubanzi C, ephezulu
7. Emva kokongeza ifayibha yeglasi kwi-PA, ukunyibilika kokunyibilika kwayo (C) xa kuthelekiswa ne-PA yoqobo. A, ingatshintshanga B, ukunyusa uC, ukwehla
8. Ubushushu bomgqomo xa i-ABS itofiwe ngu (A). A, 180 ～ 230 ℃ B, 230 ～ 280 ℃ C, 280 ～ 330 ℃
9. Umthetho wokuhanjiswa kobushushu kumbhobho womatshini wokubumba inaliti uvela kwi-hopper ukuya kwicala lomlomo (A). A, yonyusa ngokuthe ngcembe B, ngokuthe ngcembe yehle ngo-C, phezulu kuzo zombini iziphelo kunye nasezantsi embindini
10. I-arc radius yombhobho omkhulu kuneradi ye-sprue ephambili, iya kuvelisa (A). A. Ukunyibilika okuphuphuma B, imveliso flash C, isiphene semveliso D, konke oku kungentla
11. Esona sizathu siphambili sobunzima bokudiliza iimveliso zenaliti ebunjiweyo ngu (C). A. Iqondo lobushushu linyibilike liphezulu kakhulu. B. Ixesha lokupholisa lide kakhulu. C. Ubume sokubumba yenzelwe ngokungekho ngqiqweni.
12. Xa utofa i-thermoplastics, ukuba iqondo lobushushu lokungunda liphezulu kakhulu, imveliso iya kwenziwa (C). A. Imveliso inamathela kwisikhunta B, imveliso inepateni yokudibanisa C, imveliso ineflash
13. Indlela emayisetyenziswe ekubambeni indawo kunye nenkqubo yesantya ngu: (A): A, cotha-khawuleza-cotha-B-cotha-cotha C cotha-phakathi-khawuleza D cotha-ngokukhawuleza-phakathi
14. I-viscosity yezinto ze-PC (B), kwaye isantya sayo semitha kufuneka sibekwe ngokwe (B); I-viscosity ephezulu B viscosity ephakathi C viscosity ephantsi
15. Kwezi paramitha zilandelayo, (D) unokuvala ukungunda ngenaliti ngokuqinileyo. A, uxinzelelo lwenaliti B, ukubamba uxinzelelo C, uxinzelelo kwisisu D, amandla okubambana
16. Xa ubushushu besikhunta buphezulu, umgangatho osemgangathweni kufuneka (D); Uhlengahlengiso olulungileyo B uzinzo olulinganiselweyo C olucekeceke kakuhle D inkangeleko entle
17. Umgangatho wesikhundla sokugcwalisa kulula ukuvela (B); A ibanjwe B, i-burr C inkulu ngobukhulu
18.Izinto zePC, ubushushu besikhunta esisezantsi, uxinzelelo lokugcwalisa oluphantsi, imveliso kulula ukuvela (B); Umtya omkhulu wokubamba B ukungabikho kweglue C kumgangatho ongazinzanga
19. Zeziphi iimeko zenkqubo ezifanelekileyo xa kutofa iimveliso ezibhityileyo (C); Ukukhawuleza B ukucotha C ngokukhawuleza ukudubula okufutshane
20. Iqondo lobushushu sokubumba liphezulu, kwaye ubushushu bezinto obuphezulu buphezulu, kwaye imveliso ithambekele kwimeko (B); Umoya obanjisiweyo webhetshi yomoya ngaphambili C deformation
Imibuzo engapheliyo enokukhetha ukhetho: (Amanqaku ama-3 kumbuzo ngamnye, amanqaku ali-15 ewonke)
Ukuphelisa umgca wokuwelda kwemveliso: (A C D E F) Ukonyusa ubushushu be-resin B ukunciphisa ubushushu besikhunta C ukwandisa uxinzelelo lwenaliti D ukukhawulezisa isantya senaliti E ukuphucula ukukhupha F ukuphucula ukuhamba kwentlaka
2. Indlela yokuphucula ukusombuluka kwemveliso yile: (ACFG) A, ukunciphisa uxinzelelo B, ukwandisa uxinzelelo lokubamba C, ukunciphisa ixesha lokubamba D, ukwandisa inaliti E, ukunciphisa ixesha lokupholisa F, ukunciphisa ukungunda ubushushu G, kunye nokucothisa isantya sokukhutshwa
3. Iipropati ezibonakalayo ze-PA66 kufuneka: (A), (B); A, crystalline, B, thermal, C, non-crystalline, D, non-thermal
4. Iipropati ze-PMMA ezibonakalayo kufuneka zibe (C), (D); Isikristali B isiphumo sokufudumeza u-C non-crystalline D
5. Layita ubushushu bembaleki eshushu kwangaphambili (B); xa abasebenzi kufuneka bemkile (C) cima imbaleki eshushu A imizuzu emi-5 B imizuzu eli-10 C imizuzu eli-15 D imizuzu engama-20
D. Kuyinyani okanye buxoki (Umbuzo 1 amanqaku, amanqaku asi-8 ewonke)
1. Inkqubo yokumisela ukupholisa iqala ukusuka esangweni "ukubamba uxinzelelo" ide imveliso idilizwe. Emva kokuba uxinzelelo lokubamba lususiwe, ukunyibilika kwisisu kuyaqhubeka nokuphola kunye nokumila, ukuze imveliso ikwazi ukumelana nokususwa okuvumelekileyo ngexesha lokukhutshwa. ()
2. Kuphela yingxelo yemveliso yemihla ngemihla ekufuneka yenziwe ngexesha lokuvavanywa kwemveliso ()
3. Ukuhamba rhoqo kovavanyo lwe-CTQ ngexesha lenkqubo yemveliso yi-6 / ixesha ()
4.Yandisa ubushushu besikhunta, unciphise i-post-shrinkage, kwaye unciphise utshintsho olwenziweyo (ekunene).
5. Elona hamba lihamba kakuhle kakhulu lenza ukuba ukunyibilika kunyibilike kwindawo yesango ngesantya esiphantsi ukunqanda amanqaku okutshiza kunye noxinzelelo lokucheba olugqithisileyo, emva koko kwandise isantya sokuhamba ukugcwalisa uninzi lomngxunya wokungunda kunye nokunyibilika. (Ilungile)
6. Kwimveliso ezenzekelayo, ukuba isigunyaziso asiyikhuphi imveliso, ii-alamu zobuqhetseba, qala ucime i-alarm yeqikili. (akulunganga).
7. Umgangatho weemveliso eziveliswa emini nasebusuku zahlukile. Ingxaki ilele kubushushu obungazinzanga bomngundo nendalo. (Ilungile)
8. Ubukhulu becala elinqamlezileyo lomjelo wokuhamba, kuluncedo ngakumbi ekuhanjisweni koxinzelelo, kwaye kokukhona kubonakala ukomelela kokutya. (akulunganga)
E. Imibuzo neempendulo: (ngamanqaku ama-5 kumbuzo ngamnye, imibuzo eli-10 iyonke)
Zithini izizathu zocingo lwesilivere?
Impendulo: 1. Ukuveliswa kobushushu bebandile 2. Izinto azomiswanga ngokupheleleyo; 3. Uxinzelelo lincinci kakhulu; 4. Intlanzi ibolile; 5. Iqondo lobushushu sokubumba kunye nobushushu eziphathekayo ziphantsi; 6. Isantya sokugcwalisa sicotha.
2. Ixesha lokufudumeza imbaleki eshushu lide kakhulu, kwaye liza kuqala kwimveliso kwakhona. Yintoni ofanele uyenze njengegcisa ngeli xesha?
Impendulo: Kuqala, dubula ukungunda okungu-3-4 kunye netyhubhu yezinto ezingenanto, emva koko ulungelelanise umlomo kunye nombhobho, emva koko uvule ukungunda, kwaye uvimbe ukungunda okungasemva ngesiqwenga sekhadibhodi ukuthintela ukubola kwezinto ukuba zingadutyulwa ukungunda ngasemva. Kunzima ukuyicoca. Ukuba awuyikunyamekela, kuya kubangela uxinzelelo lomngundo. .
3. Kutheni ucoca umphezulu we-PL ngexesha lokuvelisa okuqhelekileyo? ngoba?
Impendulo: Umphezulu womngundo kwimveliso yesiqhelo uthambekele kumbane ongashukumiyo. Ezinye izinto ezilahliweyo zerabha kunye neentsimbi ezilahliweyo ziyawela emaphethelweni ediski xa kuvulwa ukuvalwa komngundo, oko kunokubangela umonakalo kwidis.
4. Zeziphi izinto ezibalulekileyo ezibonakala kwindawo yokuzahlula?
Impendulo: Ubushushu besikhunta kunye nobushushu bezinto ziphezulu kakhulu, uxinzelelo lokugcwalisa luphezulu, isantya sokugcwalisa siyakhawuleza, uxinzelelo lokubamba lukhawuleza, uxinzelelo lokubamba lukhulu, indawo yokugcwalisa itshintshiwe emva kwexesha, uxinzelelo lokuxinana alonelanga, kwaye umatshini weetoni mkhulu.
5. Zintoni izinto ezibangela ubungakanani obungazinzanga kunye nobukhulu?
Impendulo: Iqondo lobushushu sokubumba liphezulu kakhulu, ixesha lokupholisa lifutshane, iqondo lobushushu lokuzinza alizinzanga, iqondo lobushushu lokupholisa alizinzanga, iqondo lobushushu leoyile alizinzanga, iringi ephikisayo yonakele kakhulu, iqondo lobushushu bombhobho aluqhelekanga, intloko ebandayo yeglu ininzi kakhulu, amasuntswana entlaka angalinganiyo ngobukhulu.
6. Ukhuseleko lomngundo, yeyiphi imiba ekufuneka uyiqwalasele njengomphathi wegcisa?
Impendulo: Ubuntununtunu bokutshintsha komda, amandla okubamba amandla ombane asezantsi, isantya sokubamba amandla ombane ophantsi, indawo yokubambelela enevolthi ephantsi, kunye nexesha lokubeka esweni ukubamba zibekelwe ukuba zicothe, zincinci, kwaye zibengcono.
7. Kutheni le nto umatshini ungenakumiswa ngokungahleliwe xa uhlengahlengisa ukuchaneka komlinganiso xa uvuliwe?
Impendulo: Kuya kubakho ubushushu be-resin kunye nomehluko we-viscosity. Kuya kubakho iyantlukwano kubushushu sokubumbela, kunzima ukulawula ukuchaneka kwamacala, okukhokelela kukuhlengahlengiswa kwexesha elide, ukulahleka kwezinto, kunye nokusebenza kwemveliso esezantsi.
8. Kwimveliso yesiqhelo, iqondo lobushushu kunye noxinzelelo alunakuguqulwa ngokuthanda. Ngoba?
Impendulo: Uxinzelelo luchaphazela ubushushu beoyile yokuhamba, ubushushu bamanzi abandayo, ubushushu bombhobho, ubushushu besikhunta kunye nolunye utshintsho ixesha elide, zihlala ngaphezulu kwe-3-4H ukuzinza, ukuba kukho ukuguqulwa, umgangatho kufuneka gqolo iqinisekisiwe.
9. Xa umgangatho ungaqhelekanga, ukuba iinkqubo zenkqubo kufuneka ziguqulwe, leliphi ixesha ekufuneka likhutshwe ngaphambi kohlalutyo?
Impendulo: Okokuqala, ixesha lokugcina uxinzelelo kufuneka likhutshwe, kwaye uhlalutyo kufuneka luqale kwiphepha leerabha.
10. Umgangatho awuzinzanga, zeziphi izinto ezinokubonwa kumatshini?
Impendulo: Indawo yokugcwalisa, ixesha lokulinganisa, ixesha lokulinganisa, ukuzalisa uxinzelelo kunye netafile yokulawula umgangatho kumatshini kunokubonwa.
F. Imibuzo yohlalutyo: (amanqaku ali-10 kumbuzo ngamnye, imibuzo emi-6 iyonke)
Yintoni amalungiselelo phambi kokuba ziphene yokubumba?
1) Igalelo iimeko yokubumba esemgangathweni
2) Ukucoca kunye nokomisa izixhobo
3) Preheating ukungunda
4) Ukucocwa komgqomo
2. Zeziphi izinto ezibangela ukungazinzi komlinganiso wamalungu eplastiki?
Impendulo: Izinto ezibangela ukungazinzi komlinganiso weplastiki zezi:
1) Inkqubo yombane kunye ne-hydraulic yomatshini wenaliti ayizinzanga;
2) Isixa sokondla asizinzanga;
3) amasuntswana angalinganiyo eplastiki kunye nokuncipha okungazinzanga;
4) Iimeko zokubumba (ubushushu, uxinzelelo, ixesha) utshintsho, kwaye umjikelo wokubumba awuhambelani;
5) Isango lincinci kakhulu, ubungakanani bezibuko lokutya elinamacala amaninzi aluhambelani, kwaye ukutya akulungelelananga;
6) Ukuchaneka komngundo okungalunganga, intshukumo engazinzanga yamalungu ahambisekayo kunye nokuma okungachanekanga.
3. Kuyilo lwesitofu sokubumba, yintoni indima yokulungiswa kobushushu besikhunta?
1) Uhlengahlengiso lobushushu lubhekisa kukupholisa okanye ukufudumeza ukungunda kwenaliti.
2) Uhlengahlengiso lobushushu aluhambelani kuphela nokuchaneka kwenxalenye yeplastiki, iipropathi zoomatshini zesahlulo seplastiki kunye nomgangatho womgangatho wenxalenye yeplastiki, kodwa kunye nokusebenza kwemveliso yenaliti. Ke ngoko, ubushushu besikhunta kufuneka bulawulwe kwinqanaba elifanelekileyo ngokweemfuno. Ukufezekisa iindawo zeplastiki ezikumgangatho ophezulu kunye nemveliso ephezulu.
4. Yintoni ukuncipha kweplastiki, kwaye ziziphi izinto ezisisiseko ezichaphazela ukuncipha kweplastiki?
Impendulo: Emva kokuba iplastiki ikhutshwe kwisikhunta kwaye ipholile kwiqondo lokushisa kwegumbi, uphawu lwe-shrinkage lubizwa ngokuba yi-shrinkage. Kuba le shrinkage ayibangelwa kuphela kukwandiswa kwe-thermal kunye nokuncipha kwentlaka uqobo, kodwa ikwahambelana nezinto ezahlukeneyo zokubumba, ukuncipha kwenxalenye yeplastikhi emva kokubumba kubizwa ngokuba kukuncwina. Izinto eziphambili ezichaphazela izinga lokuncipha kubandakanya:
1) Iindidi zeplastiki;
2) Isakhiwo seplastiki;
3) ulwakhiwo lomngundo;
4) inkqubo yokubumba.
5. Nceda ucacise ngokufutshane ngendima yoxinzelelo lwasemva. (Amanqaku angama-10)
1) Qinisekisa ukuba amandla oomatshini aneleyo anokuveliswa ukunyibilika kwaye uxube iplastiki
2) Ngaphandle kweegesi eziguquguqukayo kubandakanya umoya ovela kumbhobho wezinto
3) Hlanganisa izongezo (ezinjenge toner, umbala we-masterbatch, iarhente ye-antistatic, i-talcum powder, njl.) Kunye nokunyibilika ngokulinganayo
I-4) Yenza ububanzi bokuhamba buhluke kwaye uncede ulungelelanise ukunyibilika kobude be-screw
5) Nika iimpahla ezifanayo kunye ezizinzileyo zeplastikhi ukufumana ulawulo oluchanekileyo lomgangatho wemveliso
6. Ukuba amabala amnyama ahlala eveliswa xa kuveliswa iimveliso ezimhlophe okanye eziselubala, ungayisombulula njani? (Nceda ucacise ngokufutshane ngesisombululo sakho) (amanqaku angama-20)
1) Lungisa inkqubo yokulungiselela izinto: thintela ungcoliseko lwezixhobo kwaye usete iimeko ezifanelekileyo zokomisa;
2) Guqula uyilo lwesikhunta: iimbaleki ezimxinwa ezime nkqo, iimbaleki, amasango kunye nobukhulu bodonga lwamalungu eplastiki kunokuvelisa ubushushu bokucheba obugqithisileyo, obuya kubangela ukuba izinto ezishushu kakhulu zibe shushu kwaye zibangele ukuqhekeka. Ungazama ukwandisa iimbaleki ezithe nkqo, iimbaleki, amasango;
3) Ukucoca ukungunda kunye nokujija rhoqo: inkqubo yembaleki kunye nomphezulu wokujija kufuneka ucocwe okanye upolishwe rhoqo ukunqanda ubumdaka obuhlanganisiweyo;
4) Khetha iinkcukacha zomatshini wokubumba ofanelekileyo ekubunjweni: Ukuba ukhetha iscrew esilungele iplastikhi esetyenzisiweyo, umthamo wenaliti ugcinwa ngokubanzi ngaphakathi kwe-20% -80% yeenkcukacha, kwaye ujonge ukuba ipleyiti yokufudumeza okanye imbawula ayisebenzi;
5) Lungisa iimeko zokubumba: njengokunciphisa ubushushu bokufudumeza umphanda, ukwehlisa uxinzelelo lwangasemva kunye nesantya sokujija, njl.
