M'mbuyomu nthawi yayitali, timatchula matebulo otembenuzidwa akunja kupita ku China, koma pakugwiritsa ntchito, chifukwa cha kapangidwe kazinthuzo, ukadaulo waukadaulo, kukula kwazithunzithunzi ndi zinthu zina komanso kulondola kwa zida zoyezera zosiyanasiyana. mayiko, kuuma ndi mphamvu kutembenuka ubale kukhazikitsa maziko ndi njira processing deta ndi osiyana, tinapeza kuti pali kusiyana kwakukulu pakati pa makhalidwe osiyanasiyana kutembenuka.Kuphatikiza apo, palibe mulingo wogwirizana, mayiko osiyanasiyana amagwiritsa ntchito tebulo losinthika losiyanasiyana, zomwe zimabweretsa chisokonezo pakuwuma komanso kusinthika kwamphamvu.
Kuyambira 1965, China Metrology Scientific Research ndi mayunitsi ena akhazikitsa Brinell, Rockwell, Vickers ndi chabe Rockwell kuuma benchmarks ndi mphamvu makhalidwe pamaziko a chiwerengero chachikulu cha mayesero ndi kafukufuku kusanthula, kufufuza ubale lolingana pakati pa kuuma zosiyanasiyana ndi mphamvu yachitsulo. zitsulo, kupyolera mu kutsimikizira kupanga.Tinapanga "kuuma chitsulo chakuda ndi tebulo lotembenuza mphamvu" yoyenera mndandanda wazitsulo 9 ndipo mosasamala kanthu za kalasi yachitsulo.Pantchito yotsimikizira, mayunitsi opitilira 100 adatenga nawo gawo, zitsanzo zopitilira 3,000 zidasinthidwa, ndipo zambiri zopitilira 30,000 zidayesedwa.
Deta yotsimikizira imagawidwa mofanana kumbali zonse ziwiri za kutembenuka, ndipo zotsatira zake zimakhala zogwirizana ndi kugawidwa kwabwino, ndiko kuti, matebulo otembenukawa amagwirizana kwenikweni ndi zenizeni komanso zilipo.
Matebulo otembenuzidwawa ayerekezedwa padziko lonse lapansi ndi magawo otembenuka ofanana a mayiko 10, ndipo zosintha zadziko lathu ndizofanana ndi zomwe zimasinthitsa mayiko osiyanasiyana.
Nthawi yotumiza: Mar-26-2024
