答:泥条中间开花,像喇叭口一样向四周翻卷,挤出的泥条明显中间凸出。原因是中间走泥太快,可以把中间芯头加长,或在中间芯头后面的芯杆上套一段阻力管,以减慢中部泥流,还可以加大机口进料端四角向外扩大的圆弧,以增加四角的泥料流量。挤出的泥条明显中间凹进。原因是中部走泥太慢,可适当减短中部芯头,以减小中部阻力,以及减小大刀片中部的阻泥锥,以增大中部泥流。个别孔洞中间开花,向四周翻出。原因是该芯头 A: The middle of the mud flowering, like a bell mouth to roll around the same, obviously protruding out of the mud. The reason is walking too fast in the middle, you can lengthen the middle of the core head, or in the middle of the core behind the core rod set a resistance tube to slow the mud in the middle, you can also increase the mouth of the machine feed four corners of the outward expansion The arc to increase the flow of mud at four corners. Extruded mud obviously concave in the middle. The reason is that the mud in the middle is too slow, the center core can be shortened properly to reduce the resistance in the middle, and the mud-resistance cone in the middle of the big blade can be reduced to increase the mud flow in the middle. The middle of individual holes flowering, turned out to the surrounding. The reason is the core