Ki te whakataurite kitakirere kuaha, te hoahoa o te takirere porowhita me te takirere tirotiro, he poto ake te hītori o te takirere pōro. Ahakoa i tukuna te patent tuatahi mō te takirere pōro i te tau 1871, e 85 tau te roa kia angitu ai te takirere pōro i te taha hokohoko. I kitea te Polytetrafluoroethylene (PTFE, "Teflon" rānei) i te wā o te hoahoa i te poma atomika i te Pakanga Tuarua o te Ao, ka waiho hei whakakorikori hei tīmata i te umanga takirere pōro. Kei te wātea ngā takirere pōro i roto i ngā rauemi katoa mai i te parahi ki te maitai waro me te maitai kore waikura ki te zirconium.

E rua ngā momo matua: ngā pōro mānu me ngā pōro trunnion. Mā ēnei hoahoa e rua ka taea te hanga i ngā takirere pōro whai hua mai i te ¼” ki te 60” me te nui ake. I te nuinga o te wā, ka whakamahia te hoahoa mānu mō ngā takirere iti ake me te pēhanga iti iho, ko te momo trunnion ia ka whakamahia mō ngā tono takirere nui ake me te pēhanga teitei ake.

VM SUM21 BALL API 6Dtakirere pōroE whakamahia ana ēnei momo takirere pōro e rua e te takirere pōro API 6D nā ō rātou tikanga hiri me te āhua o te rere o te kaha wai mai i te paipa ki te pōro, kātahi ka tohatoha ki te nohoanga takirere. I roto i te hoahoa pōro mānu, ka piri te pōro ki waenganui i ngā nohoanga e rua, tētahi ki runga, tētahi ki raro. Ka pā te kaha o te wai ki te pōro, ka panaia ki roto i te nohoanga takirere kei roto i te tinana takirere ki raro. Nā te mea ka kapi te pōro i te kōhao rere katoa, ka panaia te pōro e te kaha katoa o te rere ki roto i te nohoanga takirere. Mena he nui rawa te pōro, ā, he nui rawa te pēhanga, ka nui te kaha ki runga i te nohoanga takirere, nā te mea he nui rawa te taipana whakahaere, ā, kāore e taea te whakahaere i te takirere.

He maha ngā momo tinana o ngā takirere pōro mānu, engari ko te mea tino rongonui ko te momo tomokanga pito-rua. Ko ētahi atu momo tinana ko te whakaurunga-toru me te tomokanga o runga. Ka hangaia ngā takirere pōro mānu i roto i ngā rahi tae atu ki te 24″ me te 300 ngā taumata, engari ko te whānuitanga o te whakamahinga o ngā takirere pōro mānu he iti ake te nuinga - ko te mōrahi he tata ki te 12″.

Ahakoa ko te nuinga o ngā takirere pōro he mea hanga hei takirere whakaweto/whakakā, hei takirere "mutu" rānei, ko te tāpiritanga o ētahi takirere pōro me te putanga-Vtakirere pōronā ngā hoahoa i pai ai mō ngā mahi whakahaeretia.

Nohoanga rapa
VM SUM21 PORO Takirere Pōro Āpiti Takirere pōro āpiti Ka taea te whakamahi i ngā takirere pōro mānu iti ake i roto i ngā mahi maha, mai i ngā paipa o te whare ki ngā paipa kei roto ngā matū tino uaua. Ko te rauemi nohoanga rongonui mō ēnei takirere ko tētahi momo kirihou wera, pērā i te PTFE. He pai te mahi a ngā nohoanga takirere Teflon nā te mea he ngohengohe hei hiri pai ki ngā pōro whakarewa kua orohia, engari he kaha hei kore e pupuhi i waho o te takirere. Ko ngā raruraru matua e rua o ēnei takirere nohoanga ngohengohe ko te ngāwari o te rakuraku (me te turuturu pea), ā, ko te pāmahana he iti noa iho ki raro i te pūwāhi rewa o te nohoanga kirihou wera - tata ki te 450oF (232oC), i runga i te rauemi nohoanga.

Ko tētahi āhuatanga o te maha o ngā takirere pōro mānu nohoanga rapa ko te taea te hiri tika mēnā ka puta he ahi ka rewa te nohoanga matua. Ka kiia tēnei he hoahoa ātete ahi; he pute nohoanga tōna e kore e pupuri noa i te nohoanga rapa ki tōna tūranga, engari e whakarato ana hoki i tētahi mata nohoanga whakarewa e whakarato ana i tētahi hiri wāhanga ina pā ki te pōro. E ai ki ngā paerewa whakamātautau ahi a te American Petroleum Institute (API) 607, 6FA rānei, ka whakamatautauria te takirere hei whakaū i te hoahoa tiaki ahi.

Te hoahoa trunnion
VM SUM21 PORO API 6D takirere poi trunnion API 6D takirere poi trunnion Ina hiahiatia he takirere poi rahi ake, he pēhanga teitei ake hoki, ka huri te hoahoa ki te momo trunnion. Ko te rerekētanga i waenga i te momo trunnion me te momo mānu ko te pōro trunnion e mau ana i roto i te tinana matua e te trunnion o raro (tokotoko hono poto) me te tokotoko o runga. Nā te mea kāore e taea e te pōro te "mānu" ki roto i te nohoanga takirere hei whakatutuki i te katinga ā-kaha, me mānu te nohoanga takirere i runga i te pōro. Nā te hoahoa o te nohoanga trunnion ka whakaohokia te nohoanga e te pēhanga o runga, ka akiakihia ki roto i te porowhita hei hiri. Nā te mea kua mau te pōro ki tōna tūranga, engari ko tōna hurihanga 90o, kāore te kaha wai me te pēhanga tino nui e kuhu i te pōro ki roto i te nohoanga takirere. Engari, ka mahi noa te kaha ki tētahi wāhi iti i waho o te nohoanga mānu.

VM SUM21 BALL Hoahoa pito whakauru Ko te hoahoa pito whakauru ko te takirere pōro trunnion te tuakana kaha o te takirere pōro mānu, nō reira ka taea e ia te whakahaere i ngā mahi nui - te pēhanga teitei me te diameter paipa nui. Ko te whakamahinga rongonui o ngā takirere pōro trunnion ko ngā ratonga paipa.