Ubale Pakati pa Nthawi Yotseguka ya EVA Hot Melt Adhesive ndi Kuthamanga Kwachangu kwa Zida Zopangira

Pakupanga komangiriza koyenera, katatu kuyenera kuyendetsedwa mosamalitsa mukamagwiritsa ntchito zomatira zotentha zosungunuka: nthawi yotsegulira, nthawi yochiritsa, kuzizira ndi kuumitsa nthawi yowumitsa. Nthawi yotsegulira imatanthawuza nthawi yomwe imatengera kugwiritsa ntchito zomatira ku msana; nthawi yochiritsa ndi nthawi yomwe imafunika kumangirira chivundikiro ku msana; ndipo kuziziritsa ndi kuumitsa nthawi yowumitsa ndi nthawi pambuyo pochiritsa pamene bukhu, lophimbidwa ndi kuikidwa, lakonzekera kudula. Pokhapokha pambuyo pa nthawi zitatu izi pomwe bukhuli likhoza kukwaniritsa mawonekedwe ake ndikumalizidwa bwino.

Nthawi izi zogwiritsira ntchito zomatira zotentha zosungunuka zimagwirizana kwambiri ndi kuthamanga kwa zida. Mwachitsanzo, nthawi yotsegulira zomatira zotentha zosungunuka nthawi zambiri zimakhala masekondi 7-15, yomwe ndi nthawi yomwe makina omangira abwino amatengera mphero msana. Kuchokera pakugwiritsa ntchito zomatira mpaka kumangiriza kwa chivundikiro ndi msana (kupatula gluing ya khadi la msana), ndondomekoyi iyenera kumalizidwa mkati mwa masekondi a 15 kuti mukwaniritse mgwirizano wabwino. Ngati zida zimagwira ntchito pang'onopang'ono ndipo ntchito yomangirirayo singathe kutha mkati mwa masekondi a 15, zotsatira zomangirira sizidzakhala zokhutiritsa, zomwe zimapangitsa kuti pakhale kumamatira kofooka, kulephera kugwirizanitsa bwino, ndi mavuto monga bukhu lotuluka kapena masamba akugwa pambuyo pomanga. Chifukwa chake, nthawi yotseguka ya zomatira zotentha zosungunuka ziyenera kuganizira kuthamanga kwanthawi zonse kwa makina omangira abwino. Nthawi yochiritsa ya zomatira zotentha zosungunuka nthawi zambiri zimakhala zofanana ndi nthawi yotseguka, ngakhale ogwiritsa ntchito angakonde nthawi yayifupi yochiritsa kuti athandizire kulumikizana ndikusintha kwa mabuku.

Kuphatikiza pa nthawi yotsegula ndi kuchiritsa, nthawi yozizirira, kuumitsa, ndi kuyanika iyeneranso kukhala yolondola, makamaka zomatira zomwe zimagwiritsidwa ntchito pamizere yomangira bwino. Izi zili choncho chifukwa mizere yopanga yotereyi ndi yolumikizana, kuyambira kuphatikizika mpaka kudulidwa kwamabuku. Nthawi yomwe imatengera kuti bukulo liperekedwe kuchokera pachikuto kupita kudera lodulira liyenera kutsata ndondomeko yeniyeni kuti zitsimikizire kudula kwabwino kwa bukhu. Mwa kuyankhula kwina, nthawi yotumizira iyenera kuwonetsetsa kuti bukhulo lazirala, litalimba, ndi kuuma pofika pa makina odulira kuti atsimikizire kuti ladulidwa bwino. Ntchitoyi iyenera kumalizidwa mkati mwa mphindi zitatu; Kupanda kutero, kungayambitse kupunduka kwa msana, miyeso yosakhazikika yomalizidwa, ndikumamatira ku tsamba lodulira, zomwe zimakhudza mtundu wa chinthu chomalizidwa ndikuwononga zosafunika. Chifukwa chake, kutalika kwa chipangizo chotumizira buku (lamba wotumizira) pamzere wopangira uyenera kusankhidwa malinga ndi kuthamanga kosiyanasiyana. Utali wamba wa lamba wotumizira umakhala pakati pa 40 ndi 55 metres, ndipo ukhoza kukhala wautali kapena wamfupi ngati pakufunika. Komabe, ndikofunikira kuwonetsetsa kuti mabuku okhala ndi zovundikira aziziritsidwa pa lamba wotumizira kupitilira mphindi zitatu.