Clay tubali masu ratsa jiki domin fashewa tanderu

Tubalin yumbu mai jujjuyawa don tanderun fashewas ya kamata a yi da yumbu mai raɗaɗi don rufin bangon tanderun fashewa. Ana amfani da tubali mai jujjuya yumbu don tanderun fashewa don makogwaro, shaft, hearth, kasan ƙaramin murhun tanderun da murhun tanderun babban murhu.

Bulogin yumbu don tanderun fashewa yana buƙatar ƙarfin matsa lamba na kayan hana wuta a cikin zafin jiki, wanda zai iya tsayayya da lalacewar aiki na dogon lokaci na kayan sharar da aka sake fa’ida; ƙananan ƙarar ƙarar ƙararrawa a ƙarƙashin aiki na dogon lokaci a babban zafin jiki yana da amfani don kiyaye cikakkiyar ma’auni na tanderun wuta; ƙarancin bayyanar porosity da Fe: O. Ƙananan abun ciki na ruwa zai iya rage tarawar ƙwayar carbon a cikin rami mai zurfi kuma ya hana tubalin tubali daga kumburi da sassautawa da kuma lalata su yayin aiwatar da aikace-aikacen gabaɗaya; ƙananan abubuwa masu narkewa suna samar da ƙasa. Tubalin yumbu mai jujjuyawa don tanderun fashewa suna da kyawawan kaddarorin fiye da tubalin yumbu na yau da kullun.

Bangaren giciye na bulogi mai jujjuya yumbu don tanderun fashewa yana da buƙatu:

(1) Lokacin da jimlar nisa na spall bai wuce 0.25mm ba, tsayin ba’a iyakance ba;

(2) Lokacin da jimlar spall nisa ne 0.26 ~ 0.5mm, tsawon kada ya wuce 15mm;

(3) Lokacin da jimlar nisa na spall ya wuce 0.50mm, an haramta.

Ƙaƙƙarfan ɓoyayyen ɓoyayyen tubalin yumbu mai jujjuya yumbu yana da buƙatu:

(1) Lokacin da jimlar nisa na spall bai wuce 0.25mm ba, tsayin ba’a iyakance ba;

(2) Lokacin da jimlar spall nisa ne 0.26 ~ 0.50mm, tsawon kada ya wuce 40mm;

(3) An haramta spalling lokacin da jimlar faɗin ya wuce 0.5mm.