在上模节流棒槽内装入节流棒，将节流棒调节螺栓装配进节流棒的螺丝孔中，再装配上压块。
Mount restrictor bar into the restrictor bar groove of upper die, mount adjusting bolt for restrictor bar into the bolt hole in the restrictor bar, then mount lower press block, upper press block.
对专用螺栓的冷挤压工艺进行了分析和计算，并介绍冲床冷挤压模的结构。
The cold extruding process for the special bolts was analyzed and calculated. And the structure of the cold extruding die used on stamping machines was introduced.
通过分析高强螺栓的成形工艺，对模具结构进行深入探讨，设计了一套热镦模。
Die structure was discussed through the analysis of forming process of high intension screw bolt and a set of hot upsetting tool was designed.
冷镦圆头凹模是冷镦螺栓生产过程中的关键模具。
Cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.
本发明合模螺丝装在上模上不会松脱，合模方便，直接拧紧螺栓就可以合好模具，生产效率高。
The die clamping screw arranged on the upper die can not loose, the die clamping is convenient, the die can be clamped well by directly screwing the bolt, and the production efficiency is high.
所述的推刀安装在上模的固定板中并用螺栓锁紧；
A push broach is installed at the upper mould, and a holder is installed at the lower mould;
所述的推刀安装在上模的固定板中并用螺栓锁紧；
A push broach is installed at the upper mould, and a holder is installed at the lower mould;
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