Pali magulu atatu oyeserera oyeserera a ntchentche ya pit, omwe ndi onyenga, onyenga, okonda kulimba mtima komanso pansi. Malinga ndi njira yochizira kutentha, njira zoyesera zolimbana ndi kutentha ndi kutentha kutentha kwa mankhwala ndi mankhwala kutentha kwa mankhwala ndi mankhwala othandizira mankhwalawa ndizosiyananso.
Madokotala apamwamba a maluso a mankhwala oteteza mankhwala amawuma ndi owuma. Kuzama kolimba kumayenera kuyesedwa ndi ma vickers kulimbikitsidwa. Yesani mtunda kuchokera pa ntchito yonyamula katundu mpaka pomwe kuuma kumatsikira mpaka 50hrc. Uku ndiye kuya kolimba mtima.
Kutentha kwa mankhwala kutenthetsani kuthira kwa ntchito yomwe ili ndi maatomu amodzi kapena angapo omwe akusintha mankhwala, kapangidwe kake ndi katundu wa malo ogwirira ntchito. Pambuyo pakuumitsa komanso kutsika -, malo ogwirira ntchito amakhala ndi mawongolero akulu, kuvala kukana ndi mphamvu zotopa, pomwe chilimbikitso cha ntchito yayikulu.
Kuyesa kolimba mtima kwa malo ogwiritsira ntchito dzenje ntchentche mankhwala kutentha kumafanana ndi kuyeserera kwa ntchito yomanga kutentha. Onsewa amatha kuyesedwa ndi ma vickers kulimbikitsidwa kwambiri, pamtunda olimbana ndi okondana kapena okhazikika. Komabe, makulidwe amtundu wa nitrives ndiofatsa, osapitilira 0,7mm, kotero kuti wotsatsa mphamvu sangathenso kugwiritsidwa ntchito.
Ngati zofuna za madera ali ndi zazitali, mankhwala opindika zamoto zitha kuchitika potenthetsera ndi njira zina. Magawo otere nthawi zambiri amafunika kuyika malo omwe ali ndi kulimbikirana kwa chithandizo chamankhwala chopambanitsa ndi zojambulazo. Kuyesa kwa magawowo kumayenera kuchitika m'malo osankhidwa. Chida choyesa choyeserera chimatha kugwiritsa ntchito terride hardness kuti muyese phindu la HRC kulimba. Ngati kutentha kwa kutentha kosanjikiza ndi kosatha, woyeserera wolimba mtima amatha kugwiritsidwa ntchito kuyesa mtengo.
Pamwamba palimodzi ndi kusanza kutentha mankhwala a ntchentche ya ntchent nthawi zambiri kumachitika ndi kuwotcha kwamoto kapena kuyamwa. Magawo apamwamba aluso amakhala owuma, kuuma kwanuko komanso koyenera kulimba. Kuyesedwa kolimba kumatha kuchitika ndi ma vackers kulimbikirana kwa tester, okonda kulimba mtima. Kusankhidwa kwa mphamvu yoyeserera (sikelo) kumakhudzana ndi kuya kwakuya kwamphamvu komanso kuwuma kwa malo ogwirira ntchito. Pali mitundu itatu yamasukulu olimba omwe akukhudzidwa pano.
Wogwirizanitsa ma vickers ndi njira yofunika yoyesera kuthira kutentha kwa kutentha {{0} Itha kugwiritsa ntchito mphamvu yoyeserera 0,5 mpaka 100 kg kuti muyesetse pansi kuti mafuta ocheperako ngati 0.05 mm. Ili ndi kulondola kwambiri ndipo imatha kusiyanitsa kusiyana pang'ono pakuumitsa kwa malo ogwirira ntchito. Kuphatikiza apo, kuzama kokhazikika kumayeneranso kupezeka ndi ma vickers kulimbikitsidwa. Chifukwa chake, ndikofunikira kukonzekeretsa ma vickers kulimbikirana kwa mayunitsi omwe amathandizira kutentha kapena kugwiritsa ntchito zomangamanga.
Woyang'anira wolimbitsa thupi wolimba alinso woyenera kuyesa kuuma kwaminga yozungulira. Woyang'anira wolimba mtima wolimba amakhala ndi masikelo atatu kuti asankhe. Itha kuyesa mbali zosiyanasiyana zomangira zomangira zolimba ndi zolimba zolimba zoposa 0,1 mm. Ngakhale kulondola kwa woyeserera wowoneka bwino kwambiri chifukwa cha zomwe zimapangitsa kuti zikhale zolimbitsa thupi, zimatha kukwaniritsa zofunikira ngati njira yoyang'anira bwino komanso kuyendera koyenera kutentha kwa kutentha. Kuphatikiza apo, ili ndi machitidwe a ntchito yosavuta, kugwiritsa ntchito mosavuta, mtengo wotsika mtengo, miyeso yotsika, muyeso wachangu, komanso kuwerenga mwachindunji mfundo zolimba. Mndandanda wambiri wa Bor-bordell Hackness ungagwiritsidwe ntchito mwachangu komanso osachita bwino. Izi ndizofunikira kwambiri pakukonzekera zitsulo ndi makina opanga mafakitale.
Pamene otenthetsa pachimake mankhwala owumitsa dothi la ntchent ndi wandiweyani, wonani kuti wopanga wolimba mtima utha kugwiritsidwanso ntchito. Pamene kuuma kosanjikiza ndi 0,4-0.8mm, kukula kwa HRA kungagwiritsidwe ntchito, ndipo pamene kulimba kwa makulidwe kumapitilira 0,8mm, kukula kwa HRC kungagwiritsidwe ntchito.
Makhalidwe atatu olimba mtima a Vickers, RockLell Ndipo Mordey Farmall akhoza kusinthidwa mosavuta kwa wina ndi mnzake ndikusintha kukhala mawonekedwe olimba amafunikira ndi miyezo, zojambula kapena ogwiritsa ntchito. Magome osintha ofananira amaperekedwa mu ISONO yapadziko lonse lapansi, Astment American Statem ndi Standard GB / T.
