水力模拟试验表明,上注时控制盛钢桶液面高度和水口距模内液面距离,则可变更“潜流深度”;由注流引起的模内液体的强制循环区随液面升高而上移,从而使模内下部液体处于较平静状态;为了改善上注注流的组织性,梅花形水口由于其流股表面能增大,效果较好。 The hydraulic simulation tests show that when the injection rate is controlled, the height of the ladle and the distance of the nozzle from the liquid level in the mold can be changed, and the “underflow depth” can be changed. The forced circulation area of ​​the liquid caused by the injection increases with the liquid level Up, so that the liquid in the lower part of the mold is in a more calm state. In order to improve the organization of the injection and injection, the effect of the plum blossom-shaped nozzle due to the increase of its flow surface can be obtained.