1. Te pakeketanga teitei
Ko te painga matua ongā wira huri hikoko tōna pakeketanga teitei. Nā te mea ko te here whakarewa whakakikoruatia e whakamahia ana hei hanga i tēnei wira he mea hanga i te nikara, i te koranu nikara-kopara rānei. He hanganga matotoru tēnei here e whakarei ake ana i te herenga me te pakeketanga whānui. He nui ake te pakeketanga o ngā wira huri whakakikoruatia i ngā mea whakakoi parahi me te kapia. Ko te hanganga kiato o ngā wira huri whakakikoruatia he painga nui atu i te pakeketanga. Ina whakamahia mō te huri, ka pai ake te pumau o ēnei wira nā te mea he piri pūmau ō rātou kirikiri whakakoi ki te papa whakarewa. Mā tēnei ka puta he hua ōrite i te wira huri ahakoa i raro i te taumahatanga nui. Hei tāpiri, ka āwhina tēnei āhuatanga ki te whakaroa i te roa o te ora o te wira huri.
2. Te iti rawa o te porosity
Ko tētahi āhuatanga e wehewehe ai ngā wira huri whakakikoruatia hiko i ētahi atu o tō rātou akomanga ko te iti rawa o te porehu o ēnei wira huri o ngā taputapu whakakoi katoa.
Ko te pūngao he ine i te maha o ngā āputa kei roto i tētahi rauemi. Ka pā nui te pūngao o te wira huri ki te whai huatanga me te pakari o te taputapu. Hei tauira, ka taea e ngā wira huri noa te whai pūngao tae atu ki te tekau ōrau, ka whakaiti i tō rātou whai huatanga. He nui ake te pūngao o ngā mea whakakoi kua herea ki te kapia, ki te parahi rānei i ngā hua kua whakakikoruatia.
I tētahi atu taha, tata kore te porosity o ngā wira huri whakakikoruatia ki te hiko. Nā tēnei ka waiho rātou hei taputapu whakakoi tino matotoru, tino pono hoki i roto i te umanga. He pai hoki te iti o te porosity o ngā wira huri whakakikoruatia ki te whakaarohia tōna roa. He mea nui ngā taputapu huri me te kaha me te pumau tino pai ina huri i te whānuitanga o ngā rauemi. Tata kore te porosity o ngā wira huri whakakikoruatia ki te hiko, ā, ka whakarato i te kaha me te pumau tino nui, ka pai mō ngā tono huri e hiahia ana ki te tika me te tika. Kāore i rite ki ngā wira whakakoi, he tuwhera ngā pore, ko ngā wira whakakikoruatia ki te konganuku katoa te here. Ko te tikanga o tēnei ka herea tika ngā matūriki whakakoi kua herea ki te papa konganuku. Ka hua ake he tohatoha ōrite o ngā kirikiri whakakoi puta noa i te wira, ka taea ai te whakaputa hua ōrite me ia whakamahinga. Ka āwhina hoki te iti o te porosity o ngā wira whakakikoruatia ki te whakakore i ngā take aukati. Ka puta te aukati ina nui rawa te porosity o te wira, ka hua ake he puranga o ngā paru whakakoi e kiia nei ko te swarf. Ka pā nui tēnei ki te mahi a te taputapu. Kua hangaia ngā wira huri whakakikoruatia ki te aukati i te aukati mā te whakarato i te here matotoru, ōrite, me te whakarite kia tangohia ngā maramara mai i te mata huri.
3. Te huinga tino kaha
Ko tētahi painga nui o ngā wira huri taimana whakakikoruatia hiko ko te hononga piripono i waenga i te konganuku me te rauemi whakakoi. Ko te hononga konganuku i roto i te paparanga mahi kei roto i te kirikiri, ka hanga he hononga kaha ake, he roa ake i ētahi atu momo wira. Mā tēnei huinga ka whakarite kia pai te hononga i waenga i te mea whakakoi me te mea mahi, ka hua ake he tukanga huri pai ake. Ka kaha ake hoki te whakakotahitanga o te paparanga mahi here-konganuku, ko te tikanga he kaha pupuri teitei. He mea nui tēnei mahi ina huri ana i ngā rauemi he rerekē te pakeke.
Ka taea e ngā wira taimana whakakikoruatia te tu atu ki ngā kukū teitei ake, he mea tino pai mō te huri i ngā konganuku mārō pērā i te tungsten carbide. Nā tōna kaha pupuri pai, e kore te rauemi whakakoi e taka wawe, ā, kāore e taea te hanga mō te whakahāngai paura.
4. Te kukū teitei rawa
Mō ngā wira huri i hangaia ki te paura, ko te kukū o te mea whakakoi i roto i te paparanga mahi he 50% ki te 150% te tikanga, ā, ko te rōrahi o te mea whakakoi he 10% ki te 30%. Ko te kukū o te mea whakakoi o te wira huri taimana whakakikoruatia he tata ki te 200%, ā, ka taea e te rōrahi o te mea whakakoi te eke ki te neke atu i te 65%. Mā tēnei kukū teitei o te rauemi whakakoi ka nui ake te roa o te ratonga me te whakapai ake i te mahi whakakoi. Ko te kukū teitei o te rauemi whakakoi i roto i ngā wira huri taimana whakakikoruatia he mea nā te tukanga hanga ahurei.
Ki te whakatauritea ki ngā wira huri tuku iho i hangaia mā te whakaranu i ngā kirikiri whakakoi me te mea here, ā, ka pēhia kia āhua pai, ka hangaia ngā wira huri taimana whakakikoruatia mā te whakakikorua i tētahi paparanga kirikiri taimana ki runga i tētahi papa whakarewa. Mā tēnei tukanga ka whakarite kia ōrite te tohatoha o ngā matūriki taimana, kia piri pūmau hoki ki te papa whakarewa, ka hanga he hononga piri mō te tino pai o te mahi huri.
Haunga ēnei painga e whā, he maha atu anō ngā painga o ngā wira huri taimana whakakikoruatia ki te hiko.
Tuatahi, he tino pakari, ā, ka taea te tu atu i ngā pāmahana me ngā pēhanga teitei, me te kore e ngaro tō rātou āhua, tō rātou āhua rānei. Ka whakaratohia hoki e rātou he mata huri ma, he mata tika, he mea tino pai mō ngā mahi miihini tika. Ko tētahi atu painga o ngā wira huri taimana whakakikoruatia hiko ko tō rātou maha o ngā mahi. Ka taea te whakamahi i roto i ngā momo rauemi, tae atu ki ngā rauemi tino mārō pērā i te tungsten carbide me te uku. Nā tēnei maha o ngā mahi ka waiho hei whiringa rongonui i roto i ētahi ahumahi tae atu ki te motuka, te rererangi, me te hikohiko.
Wā tuku: Pipiri-06-2023