Ga samfuran da aka yi da ƙarfe mai siffar spheroidal graphite, za a auna ƙarfin juriyar bisa gaEN 598:2007+A1:2009, 6.3. Ga samfuran da aka yi da ƙarfe mai launin toka ko wani nau'in ƙarfe mai siminti, za a aiwatar da ƙa'idar ƙarfin tauri bisa ga 2 ko 3.
Bayyana ƙarfin juriya akan bututun ƙarfe mai launin toka da kuma dacewa
1. Samfura
Domin samun sakamako mai kyau gwargwadon iyawa na samfuran da aka gama, dole ne a yi gwajin tensile akan samfuran:ko dai an ɗauka dagaBututun SMLko kuma kayan haɗin bututun ƙarfe. Sannan za a yanke samfurin a layi ɗaya da ma'aunin bututun ko kayan haɗin; ko kuma kawai don kayan haɗin, daga kayan gwajin da aka yi daban-daban, waɗanda aka yi a lokaci guda da kayan haɗin.
Ya kamata a yi amfani da kayan gwajin da aka yanke daga samfurin daidai da Figures, kuma idan ya fito daga kayan gwajin da aka yi daban-daban, zai iya zama lebur maimakon lanƙwasa.
2. Kayan aiki da Hanyar Gwaji
Injin gwaji zai kasance yana da kayan aiki masu dacewa don ba da damar amfani da ƙarfin gwajin ba tare da zamewa ba.
Injin gwaji zai iya samar da ƙarfin da ya isa ya karya sassan gwajin yayin da yake nuna nauyin da aka ɗora.
Daidaiton injin gwaji zai kasance daidai daEN IS0 6892-1:2019, Sashe na 9.
Saurin aikace-aikacen kaya zai kasance daidai gwargwadon iyawa bisa gaEN IS0 6892-1:2019, Sashe na 10.
Za a ƙididdige ƙarfin taurin ta hanyar raba ƙarfin da aka nuna a lokacin fashewa ta hanyar yankin farkon giciye na yanki na gwajin. Za a auna sashin giciye (faɗi da kauri) da daidaito na 0.1 mm kafin gwajin.
3. Ingancin Gwaje-gwajen Ƙarfin Tashin Hankali
Ana ayyana gwajin a matsayin ingantacce idan aka cika waɗannan sharuɗɗan:
- don bututu: matsakaicin ƙimar da aka ɗauka a lokacin samarwa na kwana ɗaya zai zama aƙalla 200 MPa kuma matsakaicin ƙimar ɗaya na iya kasancewa tsakanin 180 MPa da 200 MPa;
- don kayan haɗi: duk ƙimomin za su kasance aƙalla 150 MPa
Sakamakon Gwajin Taurin Kai
Danna don gani Menene EN13501-1:2018 (DS SML PIPE A1)
Lokacin Saƙo: Yuli-28-2025
