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The cold heading machine controls the temperature and the temperature gradient caused by the heat loss of the workpiece during processing to reduce the processing deformation, and plays the role of heat dissipation and insulation to prevent the workpiece from quenching and the thermal shock of the mold
The types of fasteners produced by the cold heading machine include bolts, studs, screws, nuts and self tapping bolts, which are a kind of fasteners consisting of head and screw (cylinder with external thread). It is used to put two through holes. This connection is called bolt connection.
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