Maitiro ekutarisa kana muchina wekuyedza kuomarara uri kushanda zvakanaka?
1. Muedzi wekuomarara unofanirwa kusimbiswa zvizere kamwe chete pamwedzi.
2. Nzvimbo yekuisa hardness tester inofanira kuchengetwa munzvimbo yakaoma, isina kudedera uye isingakanganisi, kuitira kuti ive nechokwadi chekuti chishandiso chacho chakarurama panguva yekuyerwa uye kugadzikana uye kuvimbika kwemutengo panguva yekuyedza.
3. Kana muchina wekuyedza kuomarara uchishanda, hazvibvumirwi kubata zvakananga pamusoro pesimbi inofanira kuyerwa kudzivirira kuyera kusina kururama kana kukuvadza indenter yedhaimani iri pamusoro wemuchina wekuyedza kuomarara.
4. Pakushandisa dhaimani inopinza, zvakakosha kuongorora kupenya kwedhaimani inopinza kamwe chete pagore. Mushure mekuyerwa kwega kwega, dhaimani inofanira kudzoserwa mubhokisi rakakosha kuti richengetwe.
Matanho ekuongorora kuomarara:
Pamusoro penzira dzakakosha dzekudzivirira pakushandisa michina yakasiyana-siyana yekuedza kuoma, kune mamwe matambudziko akajairika anofanira kutariswa, ayo akanyorwa pazasi:
1. Muyedzi wehuku pachawo unogadzira mhando mbiri dzezvikanganiso: chimwe chikanganiso chinokonzerwa nekushanduka kwezvikamu zvawo; chimwe chikanganiso chinokonzerwa neparamita yehukuku inodarika mwero wakatarwa. Pachikanganiso chechipiri, muyedzi wehukuku unofanirwa kuenzaniswa nebhuroko rakajairika usati wayera. Pamhedzisiro yemuyedzi wehukuku weRockwell, mutsauko unoratidzwa mukati me ±1. Kukosha kwekugadzirisa kunogona kupihwa kune kukosha kwakagadzikana kune mutsauko mukati me ±2. Kana mutsauko uri kunze kwehuwandu hwe ±2, zvinodikanwa kuyera nekugadzirisa muyedzi wehukuku kana kuchinja kune dzimwe nzira dzekuedza hukuku.
Chikero chimwe nechimwe cheRockwell hardness chine chiyero chekushandisa, icho chinofanira kusarudzwa nemazvo zvichienderana nemitemo. Semuenzaniso, kana kuomarara kuri pamusoro peHRB100, chikero cheHRC chinofanira kushandiswa pakuyedza; kana kuomarara kuri pasi peHRC20, chikero cheHRB chinofanira kushandiswa pakuyedza. Nekuti kururama uye kunzwa kwemuyedzi wehardness kwakashata kana huwandu hwebvunzo hwapfuura, uye kukosha kwekuomarara kusina kururama, hazvina kukodzera kushandiswa. Dzimwe nzira dzekuyedza kuomarara dzinewo zviyero zvinoenderana zve calibration. Standard block inoshandiswa kugadzirisa hardness tester haigone kushandiswa kumativi ese, nekuti kuomarara kwestandard side neback side hazvisi zvakafanana. Kazhinji zvinotarisirwa kuti standard block inoshanda mukati megore rimwe kubva pazuva re calibration.
2. Pakutsiva chivharo kana chivharo, nyatso chenesa zvikamu zvechivharo. Mushure mekuchichinja, chiedze kakawanda nesimbi yemuenzaniso wekuomarara kusvika kukosha kwekuomarara kwakawanikwa kaviri mumutsara kwafanana. Chinangwa ndechekuita kuti chivharo kana chivharo nechikamu chechivharo chemuchina wekuyedza zvimanikidzwe zvakasimba uye zvibatane zvakanaka, kuitira kuti zvisakanganise kururama kwemhedzisiro yebvunzo.
3. Mushure mekunge muchina wekuyedza kuomarara wagadziriswa, pakutanga kuyera kuomarara, nzvimbo yekutanga yekuyedza haishandiswi. Nekutya kusangana kwakashata pakati pemuenzaniso neanvil, kukosha kwakayerwa hakuna kururama. Mushure mekunge nzvimbo yekutanga yaedzwa uye muchina wekuyedza kuomarara wave mumamiriro ekushanda akajairwa, sampuro inoedzwa zviri pamutemo uye kukosha kwekuomarara kwakayerwa kunonyorwa.
4. Kana chidimbu chekuyedza chichibvumira, sarudza zvikamu zvakasiyana kuti uedze hunhu hwekuoma hutatu, tora avhareji yehuwandu, uye tora avhareji yehuwandu sehuwandu hwekuoma kwechidimbu chekuyedza.
5. Pazvidimbu zvebvunzo zvine maumbirwo akaomarara, mapedhi ane maumbirwo akaenzana anofanira kushandiswa, uye anogona kuyedzwa mushure mekunge agadziriswa. Chidimbu chebvunzo chakatenderera chinowanzoiswa mumugero wakaita seV kuti chiyedzwe.
6. Usati waisa zvinhu mubhokisi, tarisa kana mubato wekurodha wakaiswa panzvimbo yekuburitsa zvinhu. Pakuisa zvinhu mubhokisi, chiito chinofanira kunge chakareruka uye chakadzikama, uye usashandise simba rakawanda. Mushure mekuisa zvinhu mubhokisi, mubato wekurodha unofanira kuiswa panzvimbo yekuburitsa zvinhu, kuitira kudzivirira kuti mudziyo usave pasi pemutoro kwenguva yakareba, zvichikonzera kushanduka kwepurasitiki uye zvichikanganisa kurongeka kwekuyera.
Vickers, kuomarara kweRockwell
Kuoma: Kugona kwechinhu kuramba kushanduka kwepurasitiki yemunzvimbo yacho, uye kunonyanya kuyerwa nenzira yekupinza ganda.
Cherechedza: Hunhu hwekuoma kwebvudzi hahugone kuenzaniswa zvakananga, uye hunogona kushandurwa chete kuburikidza netafura yekufananidza kuoma kwebvudzi.
Muna 2019, Shandong Shancai Testing Instrument Co., Ltd. yakabatana neNational Testing Machine Standardization Technical Committee uye yakabatanidzwa mukugadzirwa kwemitemo miviri yenyika.
1. GB/T 230.2-2022:"Muedzo weKuomarara kweZvinhu zveMetallic Materials Rockwell Chikamu 2: Kuongorora neKuenzanisa kweVanoedza Kuomarara neVanorenda"
2. GB/T 231.2-2022:"Muedzo weKuoma kweZvinhu zveMetallic Brinell Chikamu 2: Kuongorora neKuenzanisa kweVanoedza Kuoma"
Muna 2021, Shandong Shancai yakabatanidzwa mukuvaka chirongwa chekuongorora kuomarara kwepombi dzeinjini dzemuchadenga che otomatiki, zvichibatsira muindasitiri yezvemuchadenga yenyika yekwavo.
Nguva yekutumira: Zvita-29-2022
