Copper terminal product material for copper, the yield strength is low, the plastic parts, and for the rotational symmetry shape, suitable for the cold extrusion forming. Fitting cold extrusion is divided into core rod cold extrusion and cold extrusion without mandrel twoA mandrel can limit forming after the pipe diameter, mould is complicated in structure, main used for pipe wall thickness unchanged or minus thin workpiece; Without mandrel forming process has not only axial elongation, and wall thickness will thickening, be applicable to the inside diameter and wall thickness size no strict requirements of the pipe production. No core cold extrusion die no core shaft, the structure is simple, easy to make, easy operation, high production efficiency, a extrusion can get great reduction in area rate, and to minimize the number of deformation. According to the parts inside wall thickness size no strict requirements of the characteristics, the final choice of the project without mandrel cold extrusion process.

Elinker Electric Co,ltd under the electric experts to introduce you to copper terminal production process：
Terminal cold extrusion die with composite structures, the work, the upper die is raised, then the stock vertical in the mould. The mold, the pressure on the return immediately after reset, top device then will work from the die head out to get finished products, complete a work cycle.

Elinker Electric Co,ltd specializing in the production of copper terminals, it has the following advantages:

1. Big connection capacity, can adapt to all kinds of connection request.

2. Line pressing frame and welding needle mechanical decoupling, by the clamp wire frame and welding needle not even for an organic whole, tighten the screw of torque will not spread to the solder joints.

3. Welding needle four prismatic, end contraction slim. The insert welding hole, increase the contact area. Soldering fluid easily dissolve in welding hole, is not easy to virtual welding.

4. Welding needle for copper alloy, welding needle without dirt to ensure the welding long-term reliability.