- 16
- Oct
Njira zosanja zomangira njerwa ndi zofunikira pa ng’anjo yamadzimadzi
Njira zosanja zomangira njerwa ndi zofunikira pa ng’anjo yamadzimadzi
Makina osanjikiza amoto oyaka amadzimadzi amapangidwa ndi njerwa zaumbali ndi maumboni osakhazikika. Yotsatirazi ndiyo njira yomanga njerwa zopangira.
Chingwe cha ng’anjo yamadzimadzi yamagetsi chimagawika magawo awiri: khoma ndi chipinda.
Wopanga njerwa za Henan, wopanga mpira wotsutsa, njerwa yopepuka, Zhengzhou Huaxin Kutentha Kwambiri Co., Ltd.
(1) Makoma omanga a njerwa.
Musanamange, gwiritsani ntchito theodolite kuyeza mzere wapakati pa ng’anjo, kuyesanso kukwezeka kwa maziko, ndikuwonetsanso kukweza kwa njerwa yoyamba pachipolopolo chamoto mphindi 5 zilizonse. Jambulani mzere wosanjikiza molunjika monga kutanthauzira kwa zomangira zapansi ndi ng’anjo.
Zolumikiza zonse za njerwa ziyenera kudzazidwa ndi zomatira (kuphatikiza zolumikizira pakati pa njerwa ndi chipolopolo chachitsulo ndi zolumikizira pakati pa zigawo za njerwa), kuti zolumikizira zonse za njerwa zizadzidwe, osasiya mipata ndi mabowo. Ndipo onetsetsani pafupipafupi ngati malo omangapo ndi olondola pambuyo pomanga. Pazitsulo zomanga njerwa zambirimbiri, makulidwe onse amakoma a njerwa ayenera kuyang’aniridwa. The makulidwe chofunika matope olowa ayenera kukhala monga 2mm (kulolerana ± 1mm).
Kalasi ya calcium ya silicate, njerwa zotchingira kutchinjiriza ndi matenthedwe otchinga njerwa zimapangidwa ndi madzi osanjikiza kuti muchepetse kuyamwa kwamadzi olimba. Kupaka pulasitala pansi kungagwiritsidwe ntchito kukhazikitsa madzi osanjikiza.
Zowonjezera zowonjezera ziyenera kusungidwa moyenera. Matani CHIKWANGWANI ceramic chimamveka mbali imodzi ya njerwa ngati cholumikizira chowonjezera kuti zitsimikizire makulidwe olumikizanawo.
(2) Zomanga zomangira zozungulira zoumba njerwa.
Mtundu wapamwamba wa ng’anjo yotentha ndi kanyumba kosanjikiza ka njerwa. Asanapangire zomangira, m’mimba mwake mulinso chipolopolo chachitsulo pamwamba pa chosungira fumbi choyenera kuyang’anitsitsa mozungulira mozungulira. Mukamayang’ana, gawani chozungulira mu magawo 12 ofanana, ndipo yang’anani chozungulira ndi chingwe. Kutalika kwa chingwe kuyenera kukhala kofanana ndi kukula kwake. Ngati pali vuto, wopanga zipolopolo ayenera kuuzidwa kuti akonze vutolo.
Kusakanikirana kwa matope obwezeretsa kuyenera kuchitidwa molingana ndi malamulo a buku lazogulitsa.
1) Ntchito yomanga njerwa ya Arch: Malinga ndi zofunikira pamapangidwe, fiber ya ceramic imayikidwa mukulumikizana kokulirapo pansi pa mphete ya mchira. Pamalo pamwamba pa mphete yolumikizira ndi mphete ya njerwa, chingwe chosakanikirana ndi silicon board chimalumikizidwa ndi chipolopolo chachitsulo. Kuti muwonetsetse kulumikizana kwabwino, samitsani pang’ono aluminiyamu fiberboard. Kenako, njerwa zothandizidwa ndi njerwa zoyala zimayikidwa pachithandizocho. Mukamapanga, gwiritsani ntchito mulingo kuti muwone ngati mphete yothandizirayo, kenako ikonzani mphete ya zomangira njerwa malinga ndi zojambulazo. Komabe, ziyenera kukumbukiridwa kukhazikitsa cholumikizira chotalika 2mm pakati pa mphetezo ndi mphete yothandizira ndi pepala lodzoza.
Wonjezerani matope pamwamba pa njerwa, ikani njerwa zake pamitengo yolumikizira, ndikuzikonza ndi nyundo ya mphira. Njerwa imapendekekera kumbuyo pang’ono.
Ngati ntchito yomanga njerwa zam’madzi isanamalizidwe kumayambiriro kwa nyumbayo, zida zokuthandizira zowoneka bwino zitha kugwiritsidwa ntchito kumapeto kuti zipilala ziziyang’ana pang’ono. Gwiritsani ntchito mulingo kuti muwone momwe njerwa iliyonse ilili. M’mphepete mwa njerwa muyenera kusintha malingana ndi m’mimba mwake womwe uli pachithunzicho. Kusagwirizana pang’ono kumatha kulipidwa ndikulumikiza mfundo zamagulu othandizira. Ngati pali kupatuka kwakukulu kuchokera kukula koyambirira, konkriti yoyenera yosagwira moto itha kugwiritsidwa ntchito kapena njerwa zingadulidwe mpaka kukula kofunikira kuti zikonzedwe. Komabe, makulidwe a njerwa ayenera kukhala osachepera 70% ya makulidwe oyamba. Njerwa zikamangidwa, ziyenera kukhazikitsidwa kuti zisagwe.
2) Ntchito yomanga njerwa zapamwamba: pangani njerwa zosakhazikika molingana ndi malangizo a njerwa, ndikumanga molingana ndi gawo lililonse la njerwa zopangidwa mwadongosolo. Makulidwe apakati a matope ayenera kukhala 2mm, ndipo zomangira zomangiriza za njerwa zamatabwa ziyenera kuwonjezeredwa ndi chowumitsira chapadera. Mukamaika njerwa mbali ziwiri, pokhapokha bwalo limodzi litamalizidwa, mpangidwe wotsatira wa njerwa ungaikidwe pambali yolimba ya binder. Pakati pa zomangamanga, kulumikizana kolumikizana kwa mphete yakumtunda kwa njerwa kuyenera kuumitsidwa kwathunthu. Ngati mukuyang’ana ndi chida, nsonga ya chidacho sayenera kulowetsedwa mu zomata.
Mabwalo anayi okha a njerwa ndi omwe amatha kumangidwa tsiku lililonse, ndipo mabatani osakhazikika osanjikizika pamtengowo ayenera kumalizidwa tsiku lomwelo logwirira ntchito.
3) Kuyeza korona: Onani kutalika kwa malo 12 ndi m’mimba mwake mwa malo 4 kunja kwa bwalo la njerwa iliyonse. Onani zotsatira zoyezera malinga ndi zomwe zawonetsedwa pachithunzicho.
Pomwe dome lakumapeto kwa dome limakhudzidwa ndi mphamvu yokoka, itha kukhala yocheperako pang’ono poyerekeza ndi mtengo womwe wazindikidwa pachithunzicho, motero ndikofunikira kudziwa kuti njerwa zimapitilira pang’ono kutalika kwake ndipo sizingakhale zocheperako .
4) Kutsekedwa kwa chipinda: Pambuyo pomaliza njerwa, gwiritsani ntchito fomuyo kutsanulira konkire yakumtunda yapakatikati mwa chipinda. Konzani template pakhomopo ndi mizere yolinganiza, ndikutsanulira choyimira pamwamba kuchokera pamwamba. Konkire ikaumitsidwa, mawonekedwe amachotsedwa, ndipo njerwa zapanyumba zimamangidwa kuchokera kumtunda.
Ngati ndi dome lokhala ndi mpweya wapakatikati, ntchito yomanga njerwa ipitilira njerwa zitatsekedwa mgulu lomaliza.