Dokokin don bututun ƙarfe mai kauri a cikin aikin injiniya: ƙa'idodi masu dacewa da ƙa'idodi daban-daban don ainihin zaɓi da amfani da kayan aikin bututu mai kauri. Lokacin da aka zaɓi ko amfani da bututun ƙarfe mai kauri da kauri mai kauri, dole ne su fara bin ƙa'idodin da suka dace da ƙa'idodi daban-daban a cikin ƙayyadaddun ƙayyadaddun bututun da ke jigilar kafofin watsa labarai na ruwa mai matuƙar haɗari ko haɗari, kafofin watsa labarai masu ƙonewa, da matsanancin matsin lamba. gas. A ƙarƙashin wannan yanayin, nau'in kayan aikin bututu an ƙaddara shi ne bisa manufa da yanayin amfani (matsi, zafin jiki, matsakaicin ruwa).

Matsaloli a cikin ƙa'idodin zaɓi na bututun ƙarfe mai kauri:
1. An tsara shi daga daidaitattun tsarin. Don zaɓi a cikin aikin, akwai ma'auni don bututu, amma babu daidaitattun daidaitattun ƙirƙira ko simintin gyare-gyare. Gaskiyar ita ce, ka'idojin kayan aikin bututu da na'ura suna aron ka'idojin ƙirƙira na jiragen ruwa, ba tare da la'akari da bambance-bambancen da ke tsakanin su biyu ba, kamar walda, duba fina-finai, da sauran ka'idoji.
2. Ma'auni na kayan aikin bututu sun bambanta sosai, kuma abun ciki ba shi da daidaituwa da tsari, yana haifar da sabani a cikin haɗin gwiwa, da haifar da rashin jin daɗi a cikin amfani.
3. Babu ma'aunin gwajin nau'in don kayan aikin bututu. Matsayin GB12459 da GB13401 ne kawai ke ƙayyadad da lissafin matsa lamba don fashe gwajin na'urorin bututu maras nauyi da farantin karfe da kayan aikin bututun ƙarfe. Babu wasu nau'ikan ma'aunin gwaji ko matakan aiwatarwa don tabbatar da kera kayan aikin bututu. Ma'aunin nauyi mai kauri mai kauri maras sumul: [(kaurin bangon diamita na waje)* kaurin bango]*0.02466=kg/mita (nauyin kowace mita).

Ƙayyade ƙarfin ƙarfin bututun ƙarfe mai kauri:
1) Kayan aikin bututu waɗanda ke bayyana darajar su ko ƙayyadadden ƙimar zafin-matsi a cikin matsa lamba na ƙima yakamata su yi amfani da ƙimar yanayin zafi da aka ƙayyade a cikin ma'auni azaman tushen amfanin su, kamar GB/T17185;
2) Don kayan aikin bututu waɗanda kawai ke ƙayyadadden kauri na madaidaiciyar bututun da aka haɗa da su a cikin ma'auni, yakamata a ƙayyade ƙimar yanayin zafin su gwargwadon ƙimar bututun da aka ƙayyade a cikin ma'auni, kamar GB14383 ~ GB14626.
3) Don kayan aikin bututu waɗanda kawai ke ƙayyadad da ƙimar waje a cikin ma'auni, kamar GB12459 da GB13401, yakamata a ƙayyade ƙarfin ƙarfinsu ta hanyar gwaje-gwajen tabbatarwa.
4) Ga wasu, ya kamata a ƙayyade ma'aunin amfani ta hanyar ƙirar matsa lamba ko bincike na nazari ta ƙa'idodi masu dacewa. Bugu da ƙari, ƙarfin ƙarfin kayan aikin bututu bai kamata ya zama ƙasa da matsa lamba a ƙarƙashin yanayin aiki mai tsanani wanda dukkanin tsarin bututun zai iya fuskanta yayin aiki.