公开(公告)号：US5673857A

公开(公告)日：1997-10-07

申请号：US453814

申请日：1995-05-30

申请人： Umberto Meroni ,  Bruno Gosparini ,  Giovanni Coassin

发明人： Umberto Meroni ,  Bruno Gosparini ,  Giovanni Coassin

IPC分类号： B22D11/10 ,  B22D41/50 ,  B05B1/26

CPC分类号： B22D41/50

摘要： Discharge nozzle (10) for continuous casting of slabs having narrow sides between about 30 and about 300 mm. wide, which is employed to distribute liquid metal in a continuous casting mould and is of a type comprising a substantially vertical discharge pipe (11), which is closed at its lower end and includes lateral terminal discharge holes (14) facing towards the narrow sides of the mould and cooperating with means (13) that distribute and deflect the flow of liquid metal, the discharge pipe (11) comprising a first segment (11a) having a downwardly converging circular cross-section and a second downwardly diverging segment (11b) with a cross-section which can be varied progressively from circular to substantially rectangular at least with rounded short sides, the distribution and deflection means (13) consisting of two distribution chambers (15), one per each lateral discharge hole (14), the chambers (15) being open at their upper (16a) and lower (16b) portions and being defined by a sidewall (17) which, at the opposite side of the lateral discharge hole (14), is conformed as a downwardly diverging deflector (18) forming an angle ".alpha." with the vertical between 10.degree. and 35.degree., the lateral discharge holes (14) being adjacent to a bottom end wall (12) and having an overall section about equal to the section of the outlet of the second segment (11b) of the discharge pipe (11), each distribution chamber (15) defining an upper discharge outlet (16a) and a lower discharge outlet (16b).

摘要翻译： 用于连续铸造具有约30和约300mm之间的窄边的板坯的排放喷嘴（10）。 用于在连续铸造模具中分配液态金属，并且是一种类型，其包括基本上垂直的排放管（11），其在其下端封闭，并且包括面向窄边的侧向端子排出孔（14） 与所述液体金属流的分配和偏转的装置（13）配合，所述排放管（11）包括具有向下会聚的圆形横截面的第一段（11a）和第二向下分叉段（11b） 至少具有圆形短边的横截面可以从圆形到大致矩形逐渐变化，由两个分配室（15）组成的分配和偏转装置（13），每个横向排出孔（14）中的一个， 室（15）在其上部（16a）和下部（16b）部分处敞开，并且由侧壁（17）限定，侧壁（17）在侧向排放孔（14）的相对侧被配置为向下 横向偏转器（18）与垂直于10°和35°之间形成角度“α”，横向排出孔（14）与底端壁（12）相邻，并且具有大约等于 排出管（11）的第二段（11b）的出口，每个分配室（15）限定上排出口（16a）和下排出口（16b）。