M'mbuyomu nthawi yaitali, ife mawu matebulo kutembenuka yachilendo kwa Chinese mmodzi, koma pa ntchito , chifukwa mankhwala zikuchokera zakuthupi, processing luso, kukula kwa geometric chitsanzo ndi zinthu zina komanso kulondola kwa zida kuyeza m'mayiko osiyanasiyana , kuuma ndi mphamvu kutembenuka ubale kukhazikitsa maziko ndi njira processing deta ndi osiyana , tinapeza kuti pali kusiyana kwakukulu pakati pa kutembenuka osiyanasiyana. 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 ya zitsulo alova, kudzera yatsimikizira kupanga. Tinapanga "kuuma kwachitsulo chakuda ndi tebulo lotembenuza mphamvu" loyenera 9 mndandanda wazitsulo 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
