Mabheyaringi anotenderera ndiwo mabheyaringi anoshandiswa zvakanyanya muinjiniya yemakanika, uye mashandiro awo anokanganisa zvakananga kuvimbika kwekushanda kwemuchina wese. Kuyedzwa kwekuoma kwezvikamu zvinotenderera zvinotenderera chimwe chezviratidzo zvekuona kushanda nekuchengetedzeka. Mitemo yeInternational Standards ISO 6508-1″Nzira dzeKuedza dzeKuoma kweZvikamu zvinotenderera” inotsanangura zvinodiwa zvehunyanzvi zvekuyedzwa kwekuoma kwezvikamu, kusanganisira zvinotevera:
1. Zvinodiwa zvekuoma kwekutakura zvikamu mushure mekudziya;
1）Simbi ine chromium yakawanda-kabhoni (GCr15 series):
Kuomarara mushure mekudziya kunowanzo fanirwa kunge kuri pakati pe60 ~ 65 HRC (Rockwell hardness C scale)；
Kuomarara kudiki hakufanirwe kunge kwakaderera pane 60 HRC; zvikasadaro, kuramba kwekupfeka hakuzokwani, zvichikonzera kupfeka nekukurumidza；
Kuoma kwakanyanya hakufanirwe kudarika 65 HRC kudzivirira kuputsika kwakanyanya kwechigadzirwa, izvo zvinogona kukonzera kuputsika kana zvinhu zvabatwa nemutoro.
2）Zvishandiso zvemamiriro ekushanda akakosha (senge simbi inobereka nekabhoni, simbi inobereka nekupisa kwakanyanya):
Simbi yesimbi ine kabhoni (yakadai se20CrNiMo): Kuomarara kwechikamu chesimbi ine kabhoni mushure mekudziya kunowanzova 58~63 HRC, uye kuomarara kwesimbi kushoma (25~40 HRC), iyo inoenzanisa kuramba kwekupfeka kwepamusoro uye kuomarara kwesimbi;
Simbi inodziya zvakanyanya (yakadai seCr4Mo4V): Mushure mekudziya zvakanyanya munzvimbo inodziya zvakanyanya, kuomarara kunowanzo gara pa58~63 HRC kuti ikwane zvinodiwa zvekudzivirira kupfekwa pakupisa kwakanyanya.
2. Zvinodiwa zvekuoma kwezvikamu zvinotakura mushure mekudziya kwekupisa kwakanyanya;
200°C Mugwagwa weMijaho 60 – 63HRC Bhora reSimbi 62 – 66HRC Roller 61 – 65 HRC
225°C Mugwagwa weMijaho 59 – 62HRC Bhora reSimbi 62 – 66HRC Roller 61 – 65 HRC
250°C Mugwagwa weMijaho 58 – 62HRC Bhora reSimbi58 – 62HRC Roller58 – 62 HRC
300°C Mugwagwa weMijaho 55 – 59HRC Bhora reSimbi 56 – 59HRC Roller 55 – 59 HRC
3. Zvinodiwa zvekutanga zvemasampuli akaedzwa mukuyedzwa kwekuoma, pamwe chete nezviratidzo zvakasiyana-siyana zvekuyedzwa zvakaita sekusarudza nzira dzekuyedza kuoma, simba rekuyedza, uye nzvimbo yekuyedza.
1） Masimba ekuyedza eRockwell hardness tester: 60kg, 100kg, 150kg (588.4N, 980.7N, 1471N)
Simba rekuyedza reVickers hardness tester rakafara zvikuru:10g~100kg (0.098N ~ 980.7N)
Simba rekuyedza reLeeb hardness tester: Type D ndiyo inonyanya kushandiswa pakuyedza simba (impact energy), yakakodzera zvikamu zvesimbi zvechinyakare.
2） Ona mufananidzo uri pazasi wenzira yekuyedza
| Nhamba yeSerial | Chikamu chetsanangudzo | Nzira yekuedza | Mashoko |
| 1 | D< 200 | HRA,HRC | HRC ndiyo inonyanya kukosheswa |
| bₑ≥1.5 | |||
| Dw≥4.7625~60 | |||
| 2 | bₑ<1.5 | HV | Inogona kuyedzwa zvakananga kana mushure mekuiswa |
| Dw<4.7625 | |||
| 3 | D ≥ 200 | HLD | Zvikamu zvese zvemabheyaringi zvinotenderera zvisingakwanise kuongororwa kuomarara pabenchtop hardness tester zvinogona kuyedzwa nenzira yeLeeb |
| bₑ ≥ 10 | |||
| Dw≥ 60 | |||
| Cherechedza: Kana mushandisi aine zvinodiwa zvakakosha pakuyedza kuomarara, dzimwe nzira dzinogona kusarudzwa kuti dziedze kuomarara. | |||
| Nhamba yeSerial | Nzira yekuedza | Chikamu chemashoko/mm | Simba rekuyedza/N |
| 1 | HRC | bₑ ≥ 2.0, Dw≥ 4.7625 | 1471.0 |
| 2 | HRA | bₑ > 1.5 ~ 2.0 | 588.4 |
| 3 | HV | bₑ > 1.2 ~ 1.5, Dw≥ 2.0 ~ 4.7625 | 294.2 |
| 4 | HV | bₑ > 0.8 ~ 1.2, Dw≥ 1 ~ 2 | 98.07 |
| 5 | HV | bₑ > 0.6 ~ 0.8, Dw≥ 0.6 ~ 0.8 | 49.03 |
| 6 | HV | bₑ < 0.6, Dw< 0.6 | 9.8 |
| 7 | HLD | bₑ ≥ 10, Dw≥ 60 | 0.011 J (Joule) |
Kubva payakatanga kushandiswa muna 2007, nzira dzekuyedza dzakatsanangurwa muchiyero dzave dzichishandiswa zvakanyanya mukudzora mhando yemaitiro ekugadzira mumakambani ekugadzira mabheyaringi.
Nguva yekutumira: Nyamavhuvhu-20-2025
