Zithunzi za ASTM, yomwe imadziwikanso kuti zitsulo zamakona, imakhala ndi gawo lofunika kwambiri popereka chithandizo chapangidwe ndi kukhazikika kwa zinthu kuyambira pa mauthenga ndi nsanja zamphamvu kupita ku ma workshop ndi nyumba zazitsulo, ndipo umisiri wolondola kumbuyo kwa gi angle bar umatsimikizira kuti akhoza kupirira katundu wolemera.
ASTM zitsulo angle barzilipo mu mitundu iwiri, yofanana ndi yosafanana, malingana ndi kuya kwa miyendo. Ma angles osagwirizana, omwe amadziwikanso kuti zitsulo zooneka ngati L, nthawi zambiri amagwiritsidwa ntchito pamene mwendo umodzi wa ngodya ndi wautali kuposa wina, pamene ma angles ofanana amagwiritsidwa ntchito pamene miyendo yonse imakhala yofanana ndi kutalika kwake, kupanga ma angles a ASTM oyenera ntchito zosiyanasiyana zomangira.
Kuphatikiza pa kugwiritsa ntchito mafakitale ndi mainjiniya,ASTM galvanized angle barangapezeke mu zinthu za tsiku ndi tsiku. Kuchokera ku mashelufu akumafakitale kupita ku matebulo akale a khofi, izi zikuwonetsa kusinthika komanso kugwiritsidwa ntchito kwakukulu kwa ma angle a ASTM m'mbali zonse za moyo wathu.
Kutchulidwa kwa ASTM kumatsimikizira kuti ma angles amakwaniritsa miyezo yokhwima yokhazikitsidwa ndi American Society for Testing and Materials, kutanthauza kuti amapangidwa ndi kuyesedwa kuzinthu zina zamakina, kuphatikizapo mphamvu zokolola, mphamvu zowonongeka, ndi kutalika.
Uinjiniya wolondola kumbuyoChithunzi cha ASTMzimatsimikizira kuti kuthekera kopanga zitsulo zokhala ndi miyeso yolondola komanso makina amakina ndikofunikira kuti zitsimikizire kukhazikika kwanyumba, nsanja ndi ntchito zina zaumisiri. Umisiri wolondolawu umathandizanso kugwiritsa ntchito bwino zinthu, kumachepetsa zinyalala komanso kumakulitsa ntchito yonse yomanga.
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Nthawi yotumiza: Jul-31-2024