Zigawo za granite zogwiritsira ntchito zida zowunikira zomangira: Chodabwitsa cha sayansi ya zinthu zomwe zimakhala ndi moyo wautali kwa zaka 12 kuposa chitsulo chopangidwa ndi chitsulo.

Pankhani yowunikira makina molondola, kulondola ndi kudalirika kwa zida zowunikira screw lead kumakhudza mwachindunji kuwongolera kwabwino kwa zigawo zotumizira zamagetsi. Kusankha zinthu zapakati pa chipangizo chowunikira screw lead ndiye chinsinsi chodziwira nthawi yogwirira ntchito ndi magwiridwe antchito a zidazo. Gawo lapadera la granite la zida zowunikira screw lead, lomwe lili ndi ubwino wake wapamwamba pa sayansi ya zinthu, lapeza chitukuko chowonjezera moyo wa ntchito ndi zaka 12 poyerekeza ndi zipangizo zoponyedwa ndi chitsulo, zomwe zabweretsa kusintha kwakukulu kumakampani owunikira molondola.

Zofooka za zigawo zachitsulo chopangidwa ndi chitsulo
Chitsulo chopangidwa ndi chitsulo chakhala chikugwiritsidwa ntchito kwambiri popanga zida zoyesera screw ya lead chifukwa cha mtengo wake wotsika komanso kulimba kwake. Komabe, chitsulo chopangidwa ndi chitsulo chili ndi zofooka zambiri pakugwiritsa ntchito. Choyamba, chitsulo chopangidwa ndi chitsulo chimakhala ndi kukhazikika koipa kwa kutentha. Pakugwira ntchito kwa chowunikira screw ya lead, kutentha komwe kumapangidwa ndi chipangizocho komanso kusintha kwa kutentha kwa chilengedwe kungayambitse kusintha kwa kutentha kwa zigawo zachitsulo chopangidwa ndi chitsulo, zomwe zimakhudza kulondola kwa kuzindikira screw ya lead. Pamene nthawi yogwiritsira ntchito ikuwonjezeka, zotsatira zowonjezedwa za kusintha kwa kutentha zimapangitsa kuti cholakwika choyezera chiwonjezeke mosalekeza. Kachiwiri, kukana kwa chitsulo chopangidwa ndi chitsulo kumakhala kochepa. Pakayenda mobwerezabwereza kwa screw ya lead ndi ntchito yowunikira, pamwamba pa gawo la chitsulo chopangidwa ndi chitsulo chimakhala chofooka chifukwa cha kukangana, zomwe zimapangitsa kuti chikhale choyenerera bwino komanso kuchepetsa kulondola ndi kudalirika kwa zida zowunikira. Kuphatikiza apo, chitsulo chopangidwa ndi chitsulo chimakhala ndi kukana kofooka kwa dzimbiri. M'malo onyowa kapena okhala ndi mpweya wowononga, zigawo zachitsulo chopangidwa ndi chitsulo zimakhala ndi dzimbiri komanso dzimbiri, zomwe zimafupikitsa kwambiri moyo wa ntchito ya zidazo.
Ubwino wa zinthu za granite mu sayansi ya zakuthupi
Granite, monga chinthu choyenera kwambiri pazida zoyesera zolembera screw, ili ndi ubwino wachilengedwe. Kapangidwe kake kamkati ndi kokhuthala komanso kofanana, ndi kutentha kochepa kwambiri, nthawi zambiri kuyambira 5 mpaka 7×10⁻⁶/℃, ndipo sichimakhudzidwa ndi kusintha kwa kutentha. Izi zimathandiza kuti chowunikira screw cha lead chikhalebe ndi miyeso yokhazikika ndi mawonekedwe a zigawo za granite ngakhale zitakhala zikugwira ntchito kwa nthawi yayitali kapena kusinthasintha kwakukulu kwa kutentha kwa chilengedwe, kupereka chizindikiro chodalirika chodziwira screw cha lead ndikutsimikizira kulondola kwa deta yoyezera.
Ponena za kukana kutopa, kuuma kwa Mohs kwa granite kumatha kufika 6-7, komwe ndi kokwera kuposa kwa chitsulo chopangidwa ndi lead. Pakamayenda pafupipafupi kwa screw ya lead, pamwamba pa granite sipavalidwa mosavuta ndipo nthawi zonse imatha kusunga malo olondola kwambiri, kuonetsetsa kuti screw ya lead ikupezeka kwa nthawi yayitali. Malinga ndi ziwerengero za deta yogwiritsidwa ntchito, kulondola kwa chowunikira screw ya lead pogwiritsa ntchito zigawo za granite kumatsika pang'onopang'ono kuposa 80% kuposa kwa zigawo zachitsulo chopangidwa ndi lead pansi pa mikhalidwe yomweyi yogwirira ntchito.
Ponena za kukana dzimbiri, granite ndi mwala wachilengedwe wokhala ndi mphamvu zokhazikika za mankhwala ndipo suchita ndi zinthu wamba za acidic kapena alkaline. Ngakhale m'malo ovuta a mafakitale, zigawo za granite sizingawonongeke ndi dzimbiri, zomwe zimawonjezera nthawi ya ntchito ya chowunikira screw cha lead.
Zotsatira zodabwitsa za ntchito ndi kufunika kwa makampani
Kugwiritsa ntchito bwino kwa zigawo zapadera za granite pa zozindikira zolumikizira ndi lead screw n'kodabwitsa kwambiri. Kudzera mu kafukufuku wotsatira wa makampani ambiri opanga makina, zidapezeka kuti nthawi yapakati yogwiritsira ntchito zowunikira zolumikizira ndi lead screw pogwiritsa ntchito zigawo zachitsulo chopangidwa ndi chitsulo ndi pafupifupi zaka 8, pomwe pambuyo pogwiritsa ntchito zigawo za granite, nthawi yapakati yogwiritsira ntchito zowunikira zolumikizira ndi lead screw imatha kuwonjezeredwa mpaka zaka 20, kuwonjezeka kwa zaka 12 zonse. Izi sizimangochepetsa mtengo wamakampani kuti asinthe zida zoyesera, komanso zimafupikitsa nthawi yogwira ntchito chifukwa cha kusowa kwa zida ndikuwonjezera magwiridwe antchito.
Poganizira za chitukuko cha mafakitale, kugwiritsa ntchito zigawo za granite kwalimbikitsa kupita patsogolo kwa ukadaulo wozindikira molondola. Utumiki wake wautali kwambiri komanso magwiridwe antchito okhazikika zimapereka chitsimikizo chodalirika cha kuyang'anira zomangira za lead molondola kwambiri, kuthandiza makampani opanga makina kupanga zinthu zapamwamba kwambiri ndikuwonjezera mpikisano wamakampani onse.
Zigawo zapadera za granite zogwiritsira ntchito zida zowunikira zolumikizira za lead zapambana kuthana ndi zolakwika za zigawo zachitsulo chopangidwa ndi chitsulo chifukwa cha ubwino wa sayansi ya zinthu zakuthupi, zomwe zapangitsa kuti moyo wautumiki ukhale wokwera kwambiri. M'tsogolomu, chifukwa cha kuwonjezeka kosalekeza kwa kufunika kowunikira molondola, zigawo za granite zidzagwira ntchito yofunika kwambiri m'magawo ambiri ndikupereka chithandizo cholimba pakukula kwa makampani opanga zinthu molondola.