Me pēhea te tirotiro mēnā kei te mahi tika te taputapu whakamātautau pakeke?
1. Me manatoko katoa te whakamātautau pakeke kotahi i te marama.
2. Me waiho te wāhi tāutanga o te taputapu whakamātautau pakeke ki te wāhi maroke, kāore he wiri, kāore hoki e waikura, kia tika ai te taputapu i te wā e ine ana, kia pumau ai, kia pono ai hoki te uara i te wā o te whakamātautau.
3. Ina mahi te taputapu whakamātautau pakeke, kāore e whakaaetia kia pā tika ki te mata o te konganuku e inehia ana hei ārai i te tika o te ine, te kino rānei o te kōhao taimana kei te pane o te taputapu whakamātautau pakeke.
4. I te wā e whakamahia ana te kōhao taimana, me tirotirohia te mata o te kōhao kotahi i te tau. I muri i ia inenga, me whakahoki te kōhao ki roto i te pouaka motuhake hei penapena.
Ngā whakatūpato mō te whakamātautau pakeke:
Haunga ngā whakatūpato motuhake mō te whakamahi i ngā momo whakamātautau pakeke, kei reira ētahi raruraru noa me aro atu, e whai ake nei:
1. Ka puta i te taputapu whakamātautau pakeke ngā momo hapa e rua: ko tētahi he hapa nā te rerekētanga me te nekehanga o ōna wāhanga; ko tētahi he hapa nā te tawhā pakeke e hipa ana i te paerewa kua tohua. Mō te hapa tuarua, me whakatikatika te taputapu whakamātautau pakeke ki tētahi poraka paerewa i mua i te ine. Mō ngā hua whakatikatika o te taputapu whakamātautau pakeke Rockwell, ka tohua te rerekētanga i roto i te ±1. Ka taea te hoatu he uara whakatikatika mō tētahi uara pumau me te rerekētanga i roto i te ±2. Ina kei waho te rerekētanga i te awhe o te ±2, me whakatikatika me te whakatika i te taputapu whakamātautau pakeke, me huri rānei ki ētahi atu tikanga whakamātautau pakeke.
He whānuitanga tono tūturu tō ia tauine pakeke o Rockwell, me whiriwhiri tika kia rite ki ngā ture. Hei tauira, ina teitei ake te pakeke i te HRB100, me whakamahi te tauine HRC mō te whakamātautau; ina iti iho te pakeke i te HRC20, me whakamahi te tauine HRB mō te whakamātautau. Nā te mea he ngoikore te tika me te aro o te kaiwhakamātautau pakeke ina hipa atu i te whānuitanga whakamātautau, ā, he hē te uara pakeke, kāore e pai mō te whakamahi. He paerewa whakatikatika anō hoki ō ētahi atu tikanga whakamātautau pakeke. Kāore e taea te whakamahi i te poraka paerewa e whakamahia ana hei whakatikatika i te kaiwhakamātautau pakeke i ngā taha e rua, nā te mea kāore i te rite te pakeke o te taha paerewa me te taha o muri. Ko te tikanga whānui ko te poraka paerewa e whai mana ana i roto i te tau kotahi mai i te rā whakatikatika.
2. I te wā e whakakapia ana te pūwero, te paepae rānei, kia tupato ki te horoi i ngā wāhanga whakapā. Whai muri i te whakawhiti, whakamātauria kia maha ngā wā ki tētahi tauira maitai o tētahi pakeketanga kia rite rā anō te uara pakeke e rua ngā wā karapīpiti. Ko te kaupapa kia pēhia pai te pūwero, te paepae rānei, me te wāhanga whakapā o te mīhini whakamātautau kia kore ai e pā ki te tika o ngā hua whakamātautau.
3. Whai muri i te whakatikatika i te taputapu whakamātautau pakeke, i te tīmatanga o te ine i te pakeke, kāore e whakamahia te pūwāhi whakamātautau tuatahi. Nā te wehi kei pā kino te tauira ki te paepae, kāore e tika te uara ine. Whai muri i te whakamātautau i te pūwāhi tuatahi, ā, kei roto te taputapu whakamātautau pakeke i te āhua mahi noa, ka whakamātautauhia te tauira, ā, ka tuhia te uara pakeke ine.
4. Mena ka taea e te wāhanga whakamātautau, tīpakohia ngā wāhanga rerekē hei whakamātautau i te iti rawa kia toru ngā uara pakeke, tangohia te uara toharite, ka tangohia te uara toharite hei uara pakeke o te wāhanga whakamātautau.
5. Mō ngā wahi whakamātautau he uaua ngā āhua, me whakamahi ngā papa o ngā āhua e rite ana, ā, ka taea te whakamātautau i muri i te whakapūmau. Ko te wahi whakamātautau porowhita ka whakatakotoria ki roto i te awaawa āhua-V hei whakamātautau.
6. I mua i te utaina, tirohia mēnā kei te tūranga tango te kakau uta. I te wā e utaina ana, me māmā, me pumau te mahi, kaua hoki e nui rawa te kaha e whakamahia. I muri i te utaina, me whakanoho te kakau uta ki te tūranga tango, kia kore ai te taputapu e noho roa i raro i te kawenga, ka puta he āhua kirihou, ka pā ki te tika o te ine.
Vickers, te mārō o Rockwell
Te pakeketanga: Ko te kaha o te rauemi ki te ātete i te whakarerekētanga kirihou ā-rohe, ā, ko te nuinga o te wā ka inehia mā te tikanga kōpikopiko.
Kia mōhio: Kāore e taea te whakarite tika i ngā uara pakeke tetahi ki tetahi, ā, ka taea anake te huri mā te ripanga whakatairite pakeke.
I te tau 2019, i uru atu a Shandong Shancai Testing Instrument Co., Ltd. ki te Komiti Hangarau Paerewa Mīhini Whakamātautau ā-Motu, ā, i whai wāhi atu ki te whakatakoto i ngā paerewa ā-motu e rua.
1. GB/T 230.2-2022: "Whakamātautau Pakeke Rockwell Rauemi Whakarewa Wāhanga 2: Tirotiro me te Whakatikatika i ngā Whakamātautau Pakeke me ngā Indenters"
2. GB/T 231.2-2022:"Whakamātautau Pakeke Brinell Rauemi Whakarewa Wāhanga 2: Tirotiro me te Whakatikatika i ngā Whakamātautau Pakeke"
I te tau 2021, i whai wāhi a Shandong Shancai ki te hanganga o te kaupapa whakamātautau pakeke aunoa ipurangi o ngā paipa miihini rererangi, hei tautoko i te umanga rererangi o te whenua tupu.
Wā tuku: Hakihea-29-2022
