Terminal crimp analysis


Terminal crimp analysis

The mechanical strength of the terminal is one of the important characteristics of the terminal. Regardless of the type of terminal crimping, it must meet its original design requirements. The strength of the terminal after crimping must be at least 80% of the tensile strength of the wire itself.

The electrical performance requirements are the most important requirements for the connection! It is also the most obvious requirement for connection! A good connection has low and stable crimping resistance, smooth power transmission and less loss. Note: crimping only extends the wire.

Crimp structure of the terminal 

Open terminals

When crimping, the cup of the terminal grasps the conductor of the wire and wraps it into a bundle. The insulation butt only grasps the insulation skin, and will not cause a big change.

Closed type terminals 

The hand tool is designed for stable and high-quality crimping. It has a safety device. Only when the pressure is sufficient, the safety device will let the tool loosen. The safety device also prevents the use of too much force during crimping.

There are many hand tools, their shapes may be different, but the principle of crimping is the same.

Common bad terminal crimping items: too much crimping, too little crimping, butt buckle, empty buckle, butt buckle misalignment, flying copper wire, butt buckle penetration rubber, excessive bending of the terminal, too long tail cut, and deformation .

Defective substandard products

Solve the problem that the terminal does not fit the corresponding rubber sleeve hole after molding (I/W&I/H change)

Crimp height measurement, tension test

Conductivity test

Appearance Inspection