Kusarudzwa kwemichina yekuyedza michina yeakakanda simbi brake shangu ichaenderana neyakajairwa: ICS 45.060.20. Iyi chiyero inotsanangudza kuti iyo mechaniki yekuongorora nzvimbo yakakamurwa kuita zvikamu zviviri:
1.Tensile Test
Ichaitwa zvinoenderana nezvinodiwa zve ISO 6892-1: 2019. Zviyero uye kugadzirwa kwemhando yematenesi ekuenzanisa zvinosangana nezvinodiwa zve ISO 185:2005.
2.Hardness Testing Method
Ichaitwa zvinoenderana ne ISO 6506-1: 2014. Zviyero zvekuomarara zvichachekwa kubva pahafu yepasi yekasarudzika yekukanda test bar; kana pasina test bar, imwe shangu yebhureki ichatorwa, 6mm - 10mm icharongwa kubva parutivi rwayo, uye kuomarara kuchayerwa pa4 test points, neavhareji kukosha kuve mugumisiro wekuedzwa.
Nheyo yeKuoma Kuedza Nzira
Iyo yakajairwa ISO 6506-1: 2014 "Metallic Materials - Brinell Hardness Test - Chikamu 1: Test Method" inotsanangura musimboti, zviratidzo uye tsananguro, midziyo yekuyedza, sampuli, maitiro ebvunzo, kusava nechokwadi kwemhedzisiro uye mushumo webvunzo weBrinell kuomarara bvunzo yezvinhu zvesimbi.
2.1 Kusarudzwa kweZvishandiso zvekuedza: Brinell Hardness Tester (Yakakurudzirwa Chekutanga)
Advantages: Iyo indentation nzvimbo yakakura, iyo inogona kuratidza kuomarara kwese kwesimbi yakakandwa (simbi yakakandwa inogona kunge isina kuenzana chimiro), uye mhedzisiro inomiririra.
Inokodzera simbi yepakati uye yakaderera yakaoma yakakandwa (HB 80 - 450), iyo inovhara zvizere huwandu hwekuoma kweakakanda simbi brake shangu.
Kushanda kwacho kuri nyore, uye chinodiwa chekupedzisa kwepamusoro kwemuenzaniso wacho zvishoma (kazhinji Ra 1.6 - 6.3μm yakakwana).
2.2 Nheyo yeBrinell Hardness Test
Nheyo yacho inogona kupfupikiswa sezvizvi: Bhora rakaoma resimbi (kana kuti bhora resimbi rakadzimwa) rine dhayamita ye10mm rinotsikirirwa pamusoro pemuenzaniso pasi peimwe simba rekuedza (se3000kgf). Mushure mekuyera iyo indentation dhayamita, kukosha kwekuomarara (HBW) inoverengerwa kuratidza kugona kwechinhu kuramba deformation yepurasitiki. Kubatsira kwayo kukuru kuri mukumiririra kwakasimba kwemhedzisiro, iyo inogona kuratidza macroscopic kuomarara maitiro echinhu. Iyo yakasarudzika nzira inoshandiswa zvakanyanya mukuyedzwa kwekuita kwesimbi zvinhu.
2.3 Zviratidzo uye Tsananguro dzeBrinell Kuoma Kukosha
Tsanangudzo yakakosha yeBrinell hardness value (HBW) ndeiyi: chiyero chesimba rekuedza (F) kune indentation surface (A), ine unit yeMPa (asi kazhinji chikwata hachina kunyorwa, uye nhamba yenhamba chete ndiyo inoshandiswa). Iyo yekuverenga formula ndeyotevera:HBW=πD(D−D2−d2)2×0.102×F
Kupi:
F ndiyo simba rekuedza (chikamu: N);
D ndiyo indenter dhayamita (chikamu: mm);
d ndiyo avhareji yedhayamita yeiyo indentation (chikamu: mm);
Iyo coefficient "0.102" chinhu chekushandura chinoshandiswa kushandura chiyero chekuedza kubva kukgf kuenda kuN (kana yakaverengerwa zvakananga muN, fomula inogona kurerutswa).
Zvinogona kuonekwa kubva muchimiro chekuti pasi pesimba rekuedza rimwechete uye dhayamita ye indenter, iyo idiki iyo indentation dhayamita, iyo yakasimba yekugona kwechinhu kurwisa deformation yepurasitiki, uye yakakwirira iyo Brinell kuoma kukosha; ukuwo, iyo yakaderera kukosha kwekuoma.
Zvinoenderana nehunhu hwemhando yeakakanda simbi brake bhutsu (grey cast iron), iyo paramita yeBrinell kuomarara bvunzo inowanzoita seiyi:
Simba rekuedza (F): Kazhinji, 3000kgf (29.42kN) inoshandiswa, uye chiratidzo chekuoma chinoenderana "HBW 10/3000".
Cherechedza: Kana mufananidzo wacho wakatetepa kana zvinhu zvakapfava, simba rekuyedza rinogona kugadziridzwa (senge 1500kgf kana 500kgf) zvinoenderana ne ISO 6506-1:2014, asi izvi zvicharatidzwa mumushumo webvunzo.
Nguva yekutumira: Aug-26-2025
