1. Simbi dzakadzimwa uye dzakapfava
Muyedzo wekuomarara kwesimbi yakadzima uye yakapfava inonyanya kushandisa Rockwell kuomarara muyedzo HRC chiyero.Kana izvo zvinhu zvakatetepa uye HRC chiyero chisina kukodzera, HRA chiyero chinogona kushandiswa pachinzvimbo.Kana zvinhu zvacho zvitete, pamusoro Rockwell kuomarara zviyero HR15N, HR30N, kana HR45N inogona kushandiswa.
2. Pamusoro pesimbi yakaoma
Mukugadzirwa kwemaindasitiri, dzimwe nguva musimboti weiyo workpiece inodiwa kuve nekuomarara kwakanaka, nepo kumusoro kuchidikanwa kuve nekuoma kwakanyanya uye kupfeka kuramba.Mune ino kesi, yakakwira-frequency quenching, kemikari carburization, nitriding, carbonitriding uye mamwe maitiro anoshandiswa kuita pamusoro pekuomesa kurapa pane workpiece.Ukobvu hwenzvimbo inoomesa denga kazhinji huri pakati pemamirimita mashoma nemamirimita mashoma.Kune zvemidziyo zvine yakakora pamusoro pekuomesa maseru, zviyero zveHRC zvinogona kushandiswa kuyedza kuoma kwavo.Kune zvepakati ukobvu pamusoro pekuomesa simbi, HRD kana HRA zviyero zvinogona kushandiswa.Kune dzakatetepa pamusoro pekuomesa mativi, pamusoro Rockwell kuomarara zviyero HR15N, HR30N, uye HR45N inofanira kushandiswa.Kune yakatetepa pamusoro yakaomeswa maseru, micro Vickers kuomarara tester kana ultrasonic hardness tester inofanirwa kushandiswa.
3. Annealed simbi, normalized simbi, mild steel
Mazhinji masimbi emidziyo anogadzirwa ari annealed kana normalized state, uye mamwe anotonhora akakungurutswa simbi mahwendefa anoiswawo magiredhi zvichienderana nemadhigirii akasiyana eannealing.Iko kuomarara kuyedzwa kwemasimbi akasiyana-siyana akaiswa anowanzo shandisa zviyero zveHRB, uye dzimwe nguva zviyero zveHRF zvinoshandiswawo kune akapfava uye matete mahwendefa.Kune mahwendefa matete, Rockwell kuomarara testers HR15T, HR30T, uye HR45T zviyero zvinofanirwa kushandiswa.
4. Simbi isina tsvina
Stainless simbi zvinhu zvinowanzo kupihwa mumatunhu senge annealing, quenching, tempering, uye yakasimba mhinduro.Miyero yenyika inotsanangura zvinoenderana nepamusoro uye pasi kuomarara kukosha, uye kuyedzwa kwekuomarara kunowanzo shandisa Rockwell kuomarara tester HRC kana HRB zviyero.Chikero cheHRB chichashandiswa kuita austenitic uye ferritic stainless simbi, HRC sikero yeRockwell kuomarara tester ichashandiswa martensite uye kunaya kwemvura kuomesa simbi isina tsvina, uye HRN sikero kana HRT chiyero cheRockwell hardness tester ichashandiswa simbi isina tsvina- yakatetepa- machubhu ane madziro uye mashizha zvinhu zvine ukobvu zvisingasviki 1 ~ 2mm.
5. Simbi yakagadzirwa
Iyo Brinell kuomarara kuomarara bvunzo inowanzo shandiswa kufogi simbi, nekuti iyo microstructure yesimbi yakaumbwa haina yunifomu yakakwana, uye Brinell kuomarara bvunzo indentation yakakura.Naizvozvo, iyo Brinell kuomarara bvunzo inogona kuratidza yakazara mhedzisiro yeiyo microstructure uye zvimiro zvezvikamu zvese zvezvinhu.
6. Kanda simbi
Zvishandiso zvesimbi zvekukanda zvinowanzo zivikanwa nechimiro chisina kuenzana uye zviyo zvakaomarara, saka Brinell kuomarara bvunzo inowanzo gamuchirwa.Iyo Rockwell kuomarara tester inogona kushandiswa kuomarara kuyedzwa kweimwe cast iron workpieces.Ipo pasina nzvimbo yakakwana pachikamu chidiki chekukanda zviyo zveBrinell kuomarara kwekuomarara, chiyero cheHRB kana HRC chinogona kushandiswa kuyedza kuomarara, asi zviri nani kushandisa HRE kana HRK chiyero, nekuti HRE. uye HRK zvikero zvinoshandisa 3.175mm dhayamita simbi mabhora, ayo anogona kuwana zvirinani avhareji kuverenga pane 1.588mm dhayamita mabhora esimbi.
Zvigadzirwa zvesimbi zvinogadzika zvinogadzika zvinowanzo shandisa Rockwell hardness tester HRC.Kana izvo zvinyorwa zvisina kuenzana, data yakawanda inogona kuyerwa uye avhareji kukosha kutorwa.
7. Sintered carbide (yakaoma alloy)
Iko kuomarara kuyedzwa kwezvakaoma alloy zvinhu zvinowanzo shandisa iyo Rockwell kuomarara tester HRA chiyero.
8. Upfu
Nguva yekutumira: Jun-02-2023
