Ndi mayeso ati a Kuuma omwe ndi abwino kwambiri pa mbale zovalidwa: Brinell, Rockwell, kapena Vickers?

M'malo ouma kumene ma plate ogwiritsidwa ntchito amaikidwa — mongamachuti a migodi, ma hopper achitsulo, kapena ma liners a simenti — kuuma si chiwerengero chokha.

Kwambale yovala pamwamba pa chromium carbidekapena mbale yolimba yosawonongeka ndi zitsulo ziwiri, ndi muyeso wofunikira kwambiri wa magwiridwe antchito womwe umaneneratu kulimba, kutsimikizira mtundu wa zopangira, komanso kutsimikizira ogwiritsa ntchito.

Koma pakati pa mayeso ofala kwambiri a kuuma — Brinell (HB), Rockwell (HRC), ndi Vickers (HV) — ndi iti yomwe ingakhale yoyenera kwambiri pazinthu zamakono zosakanikirana zomwe sizingawonongeke?

Chifukwa Chake Kuyesa Kuuma Kuli Kofunika Mu Mapepala Ovala a Chromium Carbide

Kukana kuvala = Kulimba:

Mu ntchito zokwawa kapena zowononga kwambiri, kuuma kwa pamwamba pa mbale yolimbana ndi kuvala kwa chromium carbide kumakhudza mwachindunji moyo wake.

Kuwongolera Ubwino Wopanga: Kuyesa kuuma kwa nthawi zonse kumatsimikizira kuti njira yowotcherera pamwamba imapanga zotsatira zofanana.

Kudzidalira kwa Makasitomala: Kulimba kwa zinthu zomwe zalembedwa kumathandiza mainjiniya ndi magulu ogula zinthu kutsimikizira momwe zinthuzo zikuyendera pasadakhale.

Kapangidwe ka Mbale Yovala ya Bimetallic: Chifukwa Chake Kuyesa Kungakhale Kovuta

A mbale yovala ya bimetallicnthawi zambiri zimakhala ndi:

Maziko achitsulo chofewa (chothandizira kusungunula ndi kuthandizira kapangidwe kake)

Chophimba cholimba (kawirikawiri chimakhala ndi chromium carbide)

Kapangidwe ka magawo awiri kameneka kamapangitsa kuti mayeso akhale ovuta:

Ngati chophimbacho chili chopyapyala kwambiri, mayeso angayese mosazindikira chitsulo choyambira.

Ngati pamwamba pake pali pofanana kapena pali zinthu zotsalira, zotsatira zake zingasiyane.

Njira Zoyesera Kuuma: Zabwino & Zoyipa

3.1 Kulimba kwa Brinell (HB)

Momwe imagwirira ntchito: Imapindika pamwamba pogwiritsa ntchito mpira wachitsulo/tungsten pansi pa katundu wolemera.

Momwe mungagwiritsire ntchito: Ndi bwino kugwiritsa ntchito zinthu zofewa monga mbale yoyambira.

Choletsa: Cholimba kwambiri kuti chisawonongeke ndi zinthu zopyapyala. Kupindika kwa denga kungasakanize kuwerenga kwa zigawo zonse ziwiri.

Chigamulo: ✅ Yabwino pa chitsulo choyambira / ❌ Yoipa pa overlay yolimba

3.2 Kulimba kwa Rockwell (HRC)

Momwe imagwirira ntchito: Chophimba chachitsulo kapena cha diamondi chimagwiritsa ntchito mphamvu; kuya kwake kumayesedwa pakompyuta.

Momwe mungagwiritsire ntchito: Kawirikawiri m'malo ochitira msonkhano panthawi yopanga.

Zoletsa: Kukhuthala kwa pamwamba ndi kusakhazikika kwa kapangidwe ka microstructure kungasokoneze zotsatira.

Chigamulo: ✅ Kulondola pang'ono / ⚠ Kumafuna kusanthula mosamala

3.3 Kulimba kwa Vickers (HV)

Momwe imagwirira ntchito: Chipinda chozungulira cha piramidi ya diamondi chimakankhira pamwamba, ndipo chipindacho chimayesedwa ndi kuwala.

Chogwiritsira ntchito: Chabwino kwambiri pa zophimba zopyapyala komanso kuyeza molondola labu.

Zoletsa: Zimafuna luso lokonzekera, komanso nthawi yambiri.

Chigamulo: ✅✅ Chisankho chabwino kwambiri chambale zophimba za chromium carbide

Chidule: Ndi Mayeso Ati Amene Muyenera Kugwiritsa Ntchito?

Poyesa ma plates ovala a chromium carbide kapena ma bimetallic liners, Vickers imapereka zotsatira zolondola kwambiri komanso zapadera - makamaka pamene makulidwe a overlay ali pansi pa 6mm.

Zinthu Zomwe Zimakhudza Kulondola kwa Mayeso

Kuti mupeze kuuma kokhazikika komanso kodalirika pa zipangizo zotetezera chromium carbide, ganizirani izi:

Kukhuthala Kwambiri: Koonda kwambiri = mphamvu ya chitsulo choyambira

Mkhalidwe wa Pamwamba: Kulukana kwa mikanda, slag, kapena zizindikiro zopukutira kungakhudze kuwerengedwa kwa zinthuzo

Malo Osakanikirana: Malo osakanikirana a alloy pakati pa overlay ndi base amatha kusokoneza kuuma kwa malo amodzi