Analysis Of Copper Terminal Block Housing Dimensional Deviation Issues

Some copper terminal block shells employ a high-density, lightweight design, resulting in thinner walls. This thin-walled structure leads to stress concentration in the plastic during cooling and shrinkage, making it highly susceptible to dimensional shortening, warping, or overall deformation.

If there are machining errors in the mold cavity and core, improper control of thermal expansion and contraction, or unreasonable design of the demolding angle, venting, or cooling system, coupled with fluctuations in injection molding machine screw precision or injection pressure, inconsistent finished product dimensions may occur, increasing the risk of dimensional deviations.

When the copper distribution block shell dimensions deviate from the design tolerances, the internal metal terminals of the copper terminal strip shell cannot maintain ideal positioning with the plastic shell, potentially causing assembly difficulties or contact misalignment, affecting structural stability and installation compatibility.