Njengesixhobo semihla ngemihla sabantwana, umgangatho weebhaka awuhambelani kuphela nempilo yabo yomzimba, kodwa kunye nokhuseleko lobomi babo. Luxanduva kunye nesibophelelo somntu ngamnye osemgangathweni ukwenza uhlolo olusemgangathweni kunye nokuvavanya oobhaka kunye nokukhusela ukhuseleko lwezinto ezibonelelwa ngabafundi.
Amagama angundoqo eli nqaku: ukuhlolwa kwe-backpack, ukuhlolwa kwe-backpack
01. Imigangatho yokuhlola
Ukuhlolwa koobhaka babafundi ngokuqhelekileyo kwamkela umgangatho we-QB/T 2858-2007 “Iingxowa zeencwadi zabafundi”, ezifanele ukubeka iincwadi zokufundisa, izixhobo zokufundisa, nezinto zokufundisa zabafundi, kunye neebhanti zamagxa kunye nezimbini kunye neengxowa zeencwadi eziphathwayo. Ekuhlolweni okuthe ngqo kunye novavanyo, isiseko esisemgangathweni esikhoyo sibandakanya: GB / T 2912.1 "Ukumiselwa kwe-Formaldehyde kwi-Textiles - Icandelo le-1: I-Hydrolyzed Formaldehyde yamahhala (Indlela yokukhupha amanzi)", i-GB / T 3920 "Uvavanyo lokukhawuleza koMbala kwiiMveliso zeTela - Ukukhawuleza koMbala ukuya kuRubbing", GB 6675-2003 "Inkcazo yoBugcisa boKhuseleko lweToy yeSizwe", GB I-21207-2007 "IiMfuno zoKhuseleko ngokuBanzi kwiiMbonelelo zaBafundi" QB / T 3826 "Indlela yokuvavanya ukuxhathisa kwintsimbi yentsimbi kunye neekhemikhali eziphathwayo zeemveliso ezikhanyayo - Uvavanyo olungathathi hlangothi lwetyuwa yokutshiza (NSS) indlela", QB / T 3832 "Uvavanyo lwe-corrosion iziphumo zovavanyo lweentsimbi zeemveliso ezikhanyayo ”, njl.
02. Amanqaku okuhlola kunye neendlela
Iimpawu eziphambili zokuhlolwa komgangatho weepakethi zabafundi ziquka ubunzima, ukuguqulwa, amandla okuthunga, ukukhawuleza kombala kwi-friction, ukhuseleko lwe-accessory, kunye nomxholo we-formaldehyde wezixhobo zelaphu. Ukongezelela, ingqwalasela kufuneka ihlawulwe kwinduduzo yomqolo xa usebenzisa i-backpack, kunye nokulula kokusetyenziswa kwe-backpack straps kunye nezibambo.
Ukongeza ekubhekiseni ekuhlolweni kwemithwalo, kukho amanqaku amaninzi okuhlawula ingqalelo ekhethekileyo ekuhlolweni kweengxowa. Iimfuno zihluke kancinci: iimfuno zembonakalo - umgangatho wembonakalo we-backpack kufuneka uhambelane nale migaqo ilandelayo: imbonakalo yonke, imilo egcweleyo, imigca ecacileyo, i-flat and smooth adhesion, ethe tye, kunye nokucoceka okupheleleyo. IZiphu, enezithuba ezingaguqukiyo emphethweni, ukuthungwa ngokuthe tye, akukho mazinyo angekhoyo okanye angekhoyo, kunye nokutsalwa nokuvala okugudileyo. Izixhobo kunye nofakelo kufuneka zibe nomphezulu ogudileyo, oqaqambileyo kwaye awunayo intsalela yerusi, i-plating ephosiweyo, imingxuma yenaliti, i-blistering, i-peeling, kunye ne-detachment. Izixhobo kufuneka zifakwe ngokuqinileyo. Imigca ye-Suture kufuneka ifanele umgangatho wengubo kunye ne-lining esetyenzisiweyo, kunye nomgangatho kunye nombala ohambelana nenxalenye nganye. Ilaphu alifanele libe ne-warp okanye i-weft eyaphukileyo, kwaye alifanele litsibe imisonto, imisonto, amanqaku, amabala, okanye amabala. Inkangeleko yokushicilela ifuna iipateni ezicacileyo, imibala eqaqambileyo, ukuprintwa okuchanekileyo, akukho inki ehambayo okanye eveziweyo, kwaye akukho mbala uphelayo. I-Suture stitches kufuneka ihambelane nemicu ephezulu kunye nesezantsi, kunye nezititshi ezithe tye kunye nezithuba zeenaliti ezingaguqukiyo. Imithungo engenanto okanye imithungo etsityiweyo ayivumelekanga kumphezulu omkhulu ongaphambili kunye neqweqwe langaphambili lengxowa yeencwadi. Akuvumelekanga ukuthungwa okugoso okudlula i-12mm ubude. Imveliso enye mayingabi nenaliti enye engenanto okanye inaliti engekhoyo, kwaye ingabi ngaphezu kweenaliti ezimbini ezingenanto, iinaliti ezilahlekileyo, okanye iinaliti ezitsibekileyo.
Uvavanyo lokuthwala umthwalo - Uvavanyo lokuthwala umthwalo kwiingxowa zabafundi lufuna ukuba izibambo, iintambo, iintambo zokulungelelanisa, kunye neekhonkco akufanele ziwe okanye ziphule phantsi komthwalo ochaziweyo, kwaye isikhwama somzimba akufanele siqhekeke.
Iimfuno zobunzima zezi zilandelayo:
Ukucaciswa kweNombolo yothotho (ubude)/mm Umthwalo/kg1＜30032300-400 (ngaphandle kwe-400) 53400-50074＞50010
Uvavanyo lwe-Swing - I-backpack ilayishwe ngokwemigaqo, kwaye iintambo kunye nezibambo zivavanywa ngokwahlukileyo: zixhonywe emoyeni, iintambo zihlala kwindawo ekude kakhulu, okanye zilungelelanise umgama ukusuka kwi-axis ye-swing ukuya kwi-50cm-60cm, gxuma ngamaxesha angama-30 ( phambili nangasemva njengexesha eli-1), kunye ne-engile yokujingi yi (60 ± 3) °. Emva kokuba ujingi luyekile, khangela ukuba i-backpack straps, izibambo, iintambo zokulungisa, kunye neekhonkco zikhuselekile. Ukulinganisa ukuba i-deformation yecandelo lokudibanisa idlula i-20% xa kuthelekiswa nobude bokuqala ngaphakathi kwemizuzu emi-2. Uvavanyo lwe-Static kunye ne-drop-Linganisa ubude bamacandelo asebenza njengamakhonkco kwi-backpack. I-backpack kufuneka ilayishwe amaxesha angama-1.2 ubunzima obuchaziweyo, inqunyanyiswe emoyeni (kunye nomtya kwindawo ekude kakhulu), kwaye umphantsi we-backpack kufuneka ube ngu-60cm ngaphezu komhlaba (ngomgangatho onzima womthi), ukuze ulungelelanise. igxininisekile kwaye ikwimo engashukumiyo kwaye ithe tye. Emva kwemizuzu engama-30, yehla ngokuthe nkqo kwaye ukhangele ukuba iintambo, izibambo, iintambo zokulungelelanisa, kunye neentambo zikhuselekile. Ukulinganisa ubude beentambo, izibambo, iintambo zokulungelelanisa, kunye neentambo ezisebenza njengezixhumo ngaphakathi kwemizuzu ye-2, kwaye khangela ukuba i-deformation idlula i-20% xa kuthelekiswa nobude bokuqala.
Ixesha lokuposa: May-15-2023