Kusanthula Kusankha Mtundu wa Zida Zoyesera Kuuma kwa Ntchito Zazikulu ndi Zolemera

Monga momwe zimadziwikira, njira iliyonse yoyesera kuuma—kaya pogwiritsa ntchito Brinell, Rockwell, Vickers, kapena zoyesera kuuma zonyamulika za Leeb—ili ndi zofooka zake ndipo palibe chomwe chimagwira ntchito padziko lonse lapansi. Pazida zazikulu, zolemera zomwe zili ndi miyeso yosasinthasintha monga momwe zasonyezedwera pazithunzi zachitsanzo pansipa, zoyesera kuuma zonyamulika za Leeb zimagwiritsidwa ntchito kwambiri m'njira zambiri zoyesera kuti ziwongolere kuuma kwawo.

Choyesera kuuma cha Leeb chimagwiritsa ntchito njira yoyesera yosinthika, ndipo pali zinthu zambiri zomwe zimakhudza kulondola kwa mayeso ake ouma, monga elastic modulus ya zinthuzo, kuwonongeka kwa mpira wa indenter, kuuma kwa pamwamba pa workpiece, radius ya kupindika, ndi kuya kwa gawo lolimba pamwamba. Poyerekeza ndi njira zoyesera zokhazikika za Brinell, Rockwell, ndi Vickers, cholakwika chake choyesera ndi chachikulu kwambiri. Chifukwa chake, ngati kulondola kwakukulu kukufunika poyesa kuuma, kodi tingasankhe bwanji choyesera kuuma?

Pa nthawi yoyesera zida zazikulu komanso zolemera pogwiritsa ntchito zida wamba zoyesera kuuma, kukweza zida zogwirira ntchito musanayese, kukweza ndi kutsitsa chida choyesera kuuma panthawi yoyesa, komanso kutsitsa zida zogwirira ntchito pambuyo poyesa zonse zidzabweretsa ntchito yayikulu kwambiri. Ndiye, kodi tingasankhe bwanji chida choyesera kuuma?

Ma tester awiri opitilira apo okhala ndi mutu wokweza akulimbikitsidwa kuti amalize njira yonse yoyesera, monga tester yathu ya Rockwell hardness test HRZ-150GE yokonzedwa mwamakonda komanso tester ya Rockwell hardness test SCR3.0 yokhazikika pa desktop head up&down.

Njira yoyesera kuuma iyi imalola kuyesa kuuma kwa Rockwell motsatira miyezo yapadziko lonse lapansi yoyesera kuuma (monga ISO 6506-1:2014 ndi ISO 6507-1:2018). Mofananamo, pa mayeso a kuuma kwa Vickers ndi Brinell, kapangidwe konyamula kokha ka mutu woyesera kangagwiritsidwenso ntchito. Pakadali pano, ikukwaniritsa zofunikira pakuyesa kolondola kwambiri kwa zida zolemera komanso kupanga bwino.