Imikorere ya mandrele yabujijwe

Mandel nigikoresho cyingenzi mugukora imiyoboro idafite kashe. Yinjizwa mumubiri wumuyoboro, ikorana nizunguruka kugirango ikore pass ya buri mwaka, bityo ifashe muburyo bwo gukora umuyoboro. Mandrels ikoreshwa cyane mubikorwa nkuruganda rukomeza ruzunguruka, kurambura kwambukiranya imipaka, gusya imiyoboro ya buri gihe, gutobora, no kuzunguruka gukonje no gushushanya imiyoboro.

Byibanze, mandel ni umurongo muremure wa silindrike, usa nucomeka, ugira uruhare muguhindura imiyoboro muri zone deformasiyo. Ibiranga kugenda biratandukanye nuburyo butandukanye bwo kuzunguruka: mugihe cyo kwambukiranya, mandel irazunguruka kandi igenda yerekeza mumiyoboro; muburyo bwo kuzunguruka birebire (nko gukomeza kuzunguruka, kuzunguruka buri gihe, no gutobora), mandel ntizunguruka ahubwo igenda yerekeza hamwe n'umuyoboro.

Mubice bikomeza kuzunguruka, mandrele isanzwe ikorera mumatsinda, hamwe na buri tsinda ririmo byibuze manda esheshatu. Uburyo bwo gukora burashobora gushyirwa mubwoko butatu: kureremba, kubuzwa, no kureremba hejuru (bizwi kandi nka kimwe cya kabiri). Iyi ngingo yibanze ku mikorere ya mandrale yabujijwe.

Hariho uburyo bubiri bwo gukora kuri mandrale zibujijwe:

1. Uburyo gakondo: Iyo urangije kuzunguruka, mandel ihagarika kugenda. Igikonoshwa kimaze gukurwa muri mandel, mandel iragaruka vuba, isohoka kumurongo, hanyuma ikonjeshwa kandi igasiga amavuta mbere yo kongera gukoreshwa. Ubu buryo busanzwe bukoreshwa muri Mannesmann Piercing Mills (MPM).
2. Uburyo bunoze: Muri ubwo buryo, Kurangiza kuzunguruka, mandel ihagarika kugenda. Ariko, nyuma yigikonoshwa cyakuwe muri mandel na stripper, aho kugaruka, mandel igenda imbere byihuse, ikurikira igikonoshwa ikoresheje umurongo. Gusa nyuma yo kunyura kuri stripper isohoka mandrel isohoka kumurongo kugirango ukonje, amavuta, kandi wongere ukoreshe. Ubu buryo bugabanya igihe cya mandel idakora kumurongo, kugabanya neza kuzenguruka no kongera umuvuduko, kugera ku muvuduko ugera ku miyoboro igera kuri 2.5 kumunota.

Itandukaniro nyamukuru hagati yubu buryo bubiri ruri munzira ya mandel nyuma yo gukurwaho: muburyo bwa mbere, mandel igenda yerekeza muburyo butandukanye bwigikonoshwa, ikava mumashini izunguruka mbere yo gusohoka kumurongo. Muburyo bwa kabiri, mandel igenda mucyerekezo kimwe nigikonoshwa, isohoka mu ruganda ruzenguruka, inyura kuri stripper, hanyuma isohoka kumurongo.

Ni ngombwa kumenya ko muburyo bwa kabiri, kubera ko mandel ikeneye kunyura kuri stripper, umuzingo wa stripper ugomba kuba ufite imikorere yihuse-ifunguye mugihe uzunguza imiyoboro y'ibyuma byoroheje (aho igipimo cyo kugabanya umurongo kiri nibura inshuro ebyiri uburebure bwurukuta rwigikonoshwa) kugirango wirinde mandel kwangiza imizingo ya stripper.