流体在通过直喷式柱型液压控制阀阀芯时，阀内形状的变化使流体的运动量发生变化。
In jet oil hydraulic spool valves, the oil flows through a rush path because of the shape changing of the valve.
文字采用铜制反槽型字镀钛金效果；内充pvc实心内芯；厚度20毫米。
Letterform adopt invert copper letters plating with titanium effect; inside PVC core; thickness 20mm.
该型芯能用控制型芯表面质量的方式来避免铸件内孔中产生的系列疵病。
The core can effectively avoid defects of vent by controlling quality of mold surface, and it can also be used in structure of castings which is like s hole as well as hole of intricate bore.
因为内螺纹构成约束它阻碍零件从型芯的直接脱模所以内螺纹在内凹孔的广义范围内。
The internal thread comes within the broad definition of an internal undercut in that the thread forms a restriction which prevents the straight draw removal of the molding from the core.
安装前请检查内腔有无杂物附着，否则会堵塞u型阀芯或损坏阀件。
Check the valve if there is lumber inside the body, which will block the valve cartridge or damage the parts.
用这种型砂制作型芯，可解决厚大铸钢件内不易铸出的小径深孔腔室的成形难题。
A difficult foundry problem about the cast shaping of the small and deep holes in the heavy section steel castings can be solved by using the no bake sand. for making cores.
压铸件内凹处两侧采用液压抽芯机构抽芯，为防止滑块型芯与推杆发生干涉而设置了预复位机构；
Hydraulic drawing-core mechanism was adopted for two-side of inner-sinking in the die casting die, and pre-resetting mechanism was set to avoid the interference of core slide with ejector pin.
DGX- 90型，适合各多类工程机械用螺帽与内芯连体，以及管套与内芯连体扣压。
DGX-90 type suitable for all types of engineering machinery nut and inner core Siamese, and the withholding of tube sets and inner core Siamese.
DGX- 90型，适合各多类工程机械用螺帽与内芯连体，以及管套与内芯连体扣压。
DGX-90 type suitable for all types of engineering machinery nut and inner core Siamese, and the withholding of tube sets and inner core Siamese.
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