Karkace ya mamaye baka mai haske a baka wani lokacin da wani yanayi ya ci karo da wasu yanayi a cikin tsarin samarwa, kamar ramuka na iska. Idan akwai ramuka na iska a cikin walda ɗin walding, zai shafi ingancin bututun, sa bugun bututun bututun mai kuma sanya asara mai nauyi. Lokacin da aka yi amfani da bututun ƙarfe, zai kuma haifar da lalata saboda wanzuwar ramuka da kuma gajarta lokacin hidimar bututu. The most common cause of air holes in spiral steel pipe welding seam is the presence of water flux or some dirt in the welding process, which will cause air holes. Don hana wannan, buƙatar zaɓar daidaito daidai gwargwado wanda zai zama pores yayin waldi.
A lokacin da walda, kauri daga siyarwa zai kasance tsakanin 25 zuwa 45. Domin hana ramuka na iska a kan saman karfe na karkace bututu, farfajiya farantin farantin. Yayin waldi, duk datti na farantin karfe za a tsabtace farko don hana wasu abubuwa daga shigar da walwala da ke samar da iska yayin waldi.
Lokaci: Jul-13-222