Tika pansi mu bafa

Pansi pazitsulo mu bafa ndi mtundu wamapansi m'chipinda chino. Koma, zirizonse zomwe ziri, ngakhale izi ndizinthu zozolowereka, kusankhidwa kwa matayi pansi mu bafa kuyenera kuyankhidwa ndi chisankho chapadera. Chifukwa chiyani? Choyamba, chifukwa chipinda ichi ndi zida zapadera osati zophimba (matalala) zimatha kupirira - tile lapansi lakumadzi liyenera kukwaniritsa zina.

Zofunikira posankha tile yachabe

1. Popeza chipinda chogona chimakhala ndi chinyezi chachikulu, matayiwo, monga chophimba pansi, ayenera kukhala ndi madzi osachepera (pafupifupi 6-7%). Pachifukwa ichi, n'zotheka kulangiza matayala okonzedwa (kapena osasunthika). Chinthu chodziwika bwino cha teknoloji yopanga makina ya matayala amenewa amalola kuti ikhale yosasunthika, yomwe imachepetsanso mwayi wambiri wolowera.
2. Pansi pazitsulo (matayala) ziyenera kuwonjezereka ndi mankhwala osokoneza bongo - kukana zotsatira za mankhwala apanyumba. Izi ziyenera kuwonetsedwa pamapangidwe ngati chizindikiro: AA - mkulu, A - mkulu, B - medium, C ndi D - otsika.
3. Kukhazikika kwa mtundu ndi kutsutsa kusiyana kwa kutentha ndizofunikira zofunikira zomwe zimakhudza kusankha izi kapena tile pansi. Chigawo china ndi kusakaniza kwa matayi. Malingana ndi chizindikiro ichi, matabwa pansi pa chipinda chosambira amakhala osankhidwa kuchokera ku makalasi 1-3, opangidwa kuti zipange zipinda ndizomwe zimakhala zochepa komanso zochepa.
4. Ndipo, mwinamwake, chofunika kwambiri chosankhira matabwa pansi pa chipinda chogona ndi coefficient of friction. Pachifukwa ichi, ziyenera kukhala zapamwamba-9, chifukwa chakuti pamwamba pake ndizomwe zimakhala zosavuta. Kuchokera pazisonyezo ichi, tikhoza kunena, zimadalira kukhala otetezeka kukhala mu bafa, ngati madzi agunda pansi. Chomwecho, kusankha bwino kwasamba kungakhale ngati matayala a matt, omwe ali ndi chibwibwi kapena pamwamba.

Mtundu, kukula ndi mapangidwe a matayala apansi a bafa

Kusankha tile mu bafa, mosakayikira, ayenera kulingalira zofuna zawo payekha malinga ndi maonekedwe a mtundu kapena kapangidwe kake ka zinthu zomalizazi. Mwachidziwikire, ndithudi, kuwala, kumalo osalowerera ndale - kumapangitsa kuti pakhale mowonjezereka m'mlengalenga. Pamene tile ya mdima wamdima imapatsa chipinda cholimba ndi cholimba.