Reb lrb355 hrb500 8m 10m

1) kewayon noman lokaci da shawarar diamita
The nominal diameter of steel bars ranges from 6 to 50mm, and the standard recommended nominal diameters of steel bars are 6, 8, 10, 12, 14, 16, 20, 25, 32, 40, and 50mm.
2) Rashin daidaituwa na siffar fuska da girman ƙwararrun karfe
Ka'idojin ƙirar ƙirar ribbed karfe yakamata su cika waɗannan buƙatun:
Kwangidu Β tsakanin haƙarƙarin musayar ƙarfe kuma kada ya zama ƙasa da digiri 45. Lokacin da aka haɗa da kusurwa mafi girma fiye da digiri 70, da shugabanci sanders a garesu na daga sandunan karfe ya kamata ya kasance akasin haka;
Littattafan maras muhimmanci l na sandunan masu canzawa bai kamata ya fi zuwa sau 0.7 da diamita na sanduna ba;
The kusurwa α tsakanin gefen haƙarƙƙarfan haƙarƙarin haƙarƙari na ƙwanƙwasa ba zai zama ƙasa da digiri 45 ba;
Jimlar gibba (gami da fadin haƙarƙarin haƙarƙarin ƙarfe a duka bangarorin karfe na mashin karfe ba zai wuce kashi 20% na permins na mashin karfe;
Lokacin da nominal diamita na sandunan karfe bai wuce 12mm ba, haƙarƙarin yankin kada ya zama ƙasa da 0.055; Lokacin da diami'in nominal ne 14mm da 16mm, babban yanki na kare bai zama ƙasa da 0.060; Lokacin da diami'in nominal ya fi 16mm, mahaɗan yankin kada ya zama ƙasa da 0.065. Duba Shafi C don lissafin mahaɗan yankin.
Ribbed Karfe sanders gaba ɗaya suna da katako mai kauri, kuma akwai kuma waɗanda ba tare da masu tanadi ba;