Zida zoyenera ndizofunika kupanga PTFE waya ndi chingwe.Pakalipano, pali mitundu iwiri yokha: mtundu wamakina woyendetsedwa ndi screw rod ndi mtundu wa hydraulic woyendetsedwa ndi kuthamanga kwa hydraulic, mitundu iwiri iyi iliyonse ili ndi zabwino ndi zovuta zake.
PTFE ndi pulasitiki yomwe imakhala yovuta kukonza, kotero zida zake ndizofunikira.Ngati mukuyenera kupanga mizere ya MIL-grade PTFE extrusion, monga RG178, RG179, RG316, RG142, G401, RG402, RG405, etc., zida zoyenera ndizofunikira.Pakalipano, pali makamaka mitundu iwiri padziko lapansi: mtundu wamakina woyendetsedwa ndi screw rod ndi mtundu wa hydraulic woyendetsedwa ndi kuthamanga kwa hydraulic;mitundu iwiri ya PTFE pushers pa msika aliyense ali ndi ubwino ndi kuipa:
(1) Kukankha zokhota
Izi ndizofala kwambiri pakadali pano.Chophimbacho chimagawidwanso mu sliding screw ndi mpira screw.Ngati mukufuna kupanga coaxial chingwe, chifukwa sliding screw ili ndi vuto lalikulu la kukwawa kothamanga, kukankhira kumakhala kosakhazikika, ndipo sikuvomerezeka.Mpira wowononga ulibe vuto ili, koma chifukwa malo olumikizirana ndi mpira ndi ochepa, pali vuto lalikulu la moyo wovala mopanikizika kwambiri.Njira iyi si yoyenera kwa njira ya chiŵerengero chachikulu cha kuponderezana, ndiko kuti, popanga waya, makamaka kutalika kwakukulu Mzere wopyapyala ndi wabwino kwambiri!Chifukwa cha kuchepa kwa wononga kutalika ndi kulondola (ndi zoletsa zina monga mandrels), kutalika kwa pusher sikutalika.Pakalipano, chofala kwambiri chikuwoneka kuti ndi mamita 1.5!Ubwino: Pansi pa vuto la kukwawa ndi kuthamanga kwambiri abrasion, wononga ali ndi ubwino wa kufala khola ndi mtengo wotsika, umene ndi njira yaikulu ya zida zoweta PTFE panopa.Njira yokankhira imakhala yoyimirira m'mwamba, ndipo ina imapangidwa mopingasa.Kudzifotokozera mwachidule ndi pakamwa lofewa: [Kupanga m'nyumba ndi makina, okhwima, koma chifukwa ndi otseguka komanso osalamuliridwa, mfundo ndi zida zenizeni ndi zakale kwambiri, makamaka zaka 30-40 Zakale zakale zimakhala ndi zovuta za mphamvu yotsika (10-20T), kuchepa kwachangu, kuthamanga kwapang'onopang'ono, kutalika kwaufupi kopanga, komanso kuvala kwapang'onopang'ono kwa screw rod kudzakhudza kwambiri VSWR.Ubwino wake ndikuti mtengo wake ndi wotsika.
(2) Kukankha kwa hydraulic
Njira yomwe imayimiridwa ndi JENNINGS ku United States imagwiritsa ntchito ma valve oyendetsedwa ndi digito kuti akwaniritse kuyendetsa bwino kwa ma hydraulic flow kuti akwaniritse kuthamanga kokhazikika.Chifukwa njira ya hydraulic imagwiritsidwa ntchito, mphamvu yokankhira ndi yayikulu kwambiri ndipo imatha kufika pamlingo wa matani 100.Mwanjira iyi, waya waukulu woponderezedwa ndi wosavuta kukwaniritsa, ndipo chifukwa kukankhira kopingasa kumagwiritsidwa ntchito, silinda imatha kukhala yayitali kwambiri (mpaka 108 mainchesi = 2.7 metres), chifukwa gawo la sintering limagwiritsa ntchito fumigation yakutsogolo, motero liwiro. wa extrusion ndi sintering mofulumira!zokolola zambiri.Zoipa: Chifukwa kukhazikika sikutheka, mtengo wa makinawo ndi wapamwamba!Komanso, kukonza kwa hydraulic pressure kumakhalanso kovuta.Ngati sichinachitike bwino, padzakhala vuto la kutha kwa mafuta.Ndikukhulupirira kuti opanga zida zapakhomo adzapambana pankhaniyi.Kudzifotokozera mwachidule ndi pakamwa lofewa: [yachilendo kwenikweni ndi hydraulic, chifukwa kulamulira kotsekeka kumagwiritsidwa ntchito, ndipo mphamvu ya hydraulic ndi yaikulu (mpaka 100T), kotero kuti kupanga bwino kumakhala kwakukulu komanso kutalika kwa kupanga (3-4) nthawi), Ndipo khalidweli ndi lokhazikika (monga kusinthasintha kwa waya, VSWR index, etc.) ndipo imayendetsedwa ndi makompyuta, yomwe ndi yabwino kupanga zamakono!
(3) Electro-hydraulic drive
Uwu ndiye ukadaulo wotsogola kwambiri pakadali pano, komanso ndi njira yopangira ma hydraulics.Ilinso ndi zabwino za hydraulic thrust yayikulu komanso kufalikira kokhazikika kwa screw rod.Sizinagwiritsidwe ntchito kwa PTFE pushers pakali pano, koma zangoyamba kugwiritsidwa ntchito pa zida zina zankhondo zapamwamba.
Nthawi yotumiza: Jul-10-2018