Tepi yophimbaimagwiritsidwa ntchito kwambiri pamakampani opanga zida zamagetsi. Amagwiritsidwa ntchito pamodzi ndi tepi yonyamulira kunyamula ndi kusunga zipangizo zamagetsi monga resistors, capacitors, transistors, diode, etc. m'matumba a tepi yonyamulira.
Tepi yophimba nthawi zambiri imachokera ku filimu ya polyester kapena polypropylene, ndipo imaphatikizidwa kapena yokutidwa ndi zigawo zosiyana zogwirira ntchito (anti-static layer, zomatira, etc.). Ndipo amasindikizidwa pamwamba pa thumba mu tepi yonyamulira kuti apange malo otsekedwa, omwe amagwiritsidwa ntchito kuteteza zipangizo zamagetsi kuti zisawonongeke ndi kuwonongeka panthawi yoyendetsa.
Pa kuyika kwa zida zamagetsi, tepi yophimba imachotsedwa, ndipo zida zoyikamo zokha zimayika bwino zigawozo m'thumba kudzera mu dzenje la sprocket la tepi yonyamulira, ndiyeno zimawatenga ndikuziyika pa bolodi lophatikizana (PCB board) motsatizana.
Gulu la matepi ophimba
A) Ndi m'lifupi mwa chivundikiro tepi
Kuti agwirizane ndi makulidwe osiyanasiyana a tepi yonyamulira, matepi ophimba amapangidwa mosiyanasiyana. M'lifupi mwake ndi 5.3 mm (5.4 mm), 9.3 mm, 13.3 mm, 21.3 mm, 25.5 mm, 37.5 mm, etc.
B) Ndi mawonekedwe osindikiza
Malinga ndi mawonekedwe a kulumikizana ndi kusenda kuchokera pa tepi yonyamula, matepi ophimba amatha kugawidwa m'mitundu itatu:tepi yovundikira kutentha (HAA), tepi yovunda (PSA), ndi tepi yatsopano yapadziko lonse (UCT).
1. Tepi yotchinga ndi kutentha (HAA)
Kusindikizidwa kwa tepi yotchinga yotenthetsera kutentha kumatheka chifukwa cha kutentha ndi kupanikizika kuchokera ku chipika chosindikizira cha makina osindikizira. Pamene zomatira zotentha zosungunuka zimasungunuka pamtunda wosindikizira wa tepi yonyamulira, tepi yophimbayo imakanizidwa ndikusindikizidwa ku tepi yonyamulira. Tepi yotchinga yotenthetsera kutentha ilibe viscosity kutentha kwa firiji, koma imakhala yomata itatha kutentha.
2.Pressure sensitive adhesive (PSA)
Kusindikiza kwa tepi yophimba kupanikizika kumachitidwa ndi makina osindikizira omwe amagwiritsira ntchito kupanikizika kosalekeza kupyolera mu chodzigudubuza chokakamiza, kukakamiza zomatira zowonongeka pa tepi yophimba kuti zigwirizane ndi tepi yonyamulira. Mphepete mwa zomatira za mbali ziwiri za tepi yovundikira yomwe imamatira kutentha ndipo imatha kugwiritsidwa ntchito popanda kutentha.
3. New Universal Cover Tape (UCT)
Mphamvu yopukuta ya matepi ophimba pamsika makamaka imadalira mphamvu yomatira ya guluu. Komabe, guluu yemweyo akagwiritsidwa ntchito ndi zinthu zosiyanasiyana zapamtunda pa tepi yonyamulira, mphamvu yomatira imasiyanasiyana. Mphamvu yomatira ya guluu imasiyanasiyananso pazikhalidwe zosiyanasiyana za kutentha komanso ukalamba. Kuphatikiza apo, pakhoza kukhala kuipitsidwa kwa guluu wotsalira panthawi ya peeling.
Kuti athetse mavuto enieniwa, mtundu watsopano wa tepi yachivundikiro chapadziko lonse wayambitsidwa pamsika. Mphamvu yovunda sidalira mphamvu yomatira ya guluu. M'malo mwake, pali ma grooves awiri akuya omwe amadulidwa pamunsi filimu ya tepi yophimba pogwiritsa ntchito makina olondola.
Poyang'ana, tepi yophimbayo imang'amba m'mphepete mwazitsulo, ndipo mphamvu yopukutira imakhala yodziyimira pawokha pamagulu omatira a guluu, omwe amangokhudzidwa ndi kuya kwa ma grooves ndi mphamvu yamakina a filimuyo, kuti atsimikizire kukhazikika kwa mphamvu ya peeling. Kuphatikiza apo, chifukwa gawo lapakati lokha la tepi yophimba limachotsedwa panthawi ya peeling, pomwe mbali zonse ziwiri za tepi yophimba zimatsatiridwa ndi mzere wosindikiza wa tepi yonyamulira, zimachepetsanso kuipitsidwa kwa guluu wotsalira ndi zinyalala ku zida ndi zigawo.
Nthawi yotumiza: Mar-27-2024