摘要
提出了一种基于磨料浆体射流技术的针阀体喷孔研磨技术。该技术利用针阀体喷孔的节流作用使射流发生,靠浆料的研磨作用来去除针阀体内流道毛刺,对喷孔孔口进行倒角,以提高其流量系数。加工时,通过流量控制系统实时监测、控制针阀体的实时流量与终止流量,来控制其流量离散度。实际加工实验表明,该技术可以提高针阀体流量系数到0.85左右,同批针阀体流量离散度控制在±1%以下,达到国外同类技术的先进水平。
The grinding technology of injector valve based on abrasive suspension jet is presented. The jet nozzle is replaced by the injector valve for the grinding process. By deburring and radiusing the intersecting passage of the injector valve with the abrasive suspension results in a high flow coefficient. During the grinding process, the actual through flow rate is compared to a predetermined reference through flow rate. When the two coincide, the process is brought to an end in order to calibrate the flow tolerance of the injector nozzle. The experiments prove that the flow coefficient could be improved to approximate 0. 85 and the flow tolerance could be reduced to ±1%, reaching the advanced level of similar products abroad.
出处
《制造技术与机床》
CSCD
北大核心
2010年第4期116-119,共4页
Manufacturing Technology & Machine Tool
关键词
磨料浆体射流
针阀体
流量系数
离散度
Abrasive Suspension Flow
Injector Valve
Flow Coefficient
Flow Tolerance
