Outer Cap And Contact For New Energy Car Fuse

Application of Outer Cap and Contact for New Energy Car Fuse

EV Fuses are crucial to the safety protection of new energy electric vehicles. New energy vehicles use high-voltage direct current for energy storage, and overcurrent protection is inseparable from high-performance Cap and Contact Fast Acting EV Fuse. Specifically, due to the complex circuit working environment during the long-term driving of the vehicle of Cap and Contact for Hybrid Electric Vehicle Fuses, mechanical vibration, temperature changes, chemical corrosion, current impact, vehicle collision and other conditions are very likely to cause short-circuit faults, resulting in a short-circuit current of more than 10kA, which may cause Serious economic losses and even endanger life safety.

QUALITY GUARANTEE

Our end caps and fuse terminals of high speed fuse for protection of electric vehicle comply with the highest quality requirements as stipulated in ISO9001, IATF16949, SGS guidelines,RoHS directives and our systemic quality control.

How to check the plating quality of copper or brass stampings of Fuse Contact Cap?

Surface electroplating can make various metal Fuse Contact and non-metal parts have excellent appearance and good corrosion resistance and wear resistance, and also make the surface of the Contact for Fuse have a variety of special functions, making it a new type of functional material. But how to judge whether the electroplated product Fuse Terminal Contact can achieve the expected performance? Several commonly used coating inspection methods are described below.

1. Appearance inspection

The visual inspection of the coating of metal parts Fuse Terminal is the most basic and most commonly used inspection. Coated parts Fuse L-type Termial with unqualified appearance do not need to be tested for other items.Visual observation is used during inspection, and the coated parts Securing Lug (Fixing Slot) can be divided into three categories: qualified, defective and waste according to the Copper Securing Lug (Fixing Slot) appearance. Poor appearance includes defects such as pinholes, pitting, peeling, air bubbles, falling off, and spots.

2. Hardness testing

Hardness is also one of the important mechanical properties of the coating Fuse Terminal Contact. The hardness of the coating Fuse Link Contact depends on the internal composition and structure of the coating. In order to eliminate the influence of the substrate on the coating and the limitation of the thickness of the coating on the size of the indentation, the microhardness method is generally used. That is, using the diamond indenter on the microhardness tester, under the action of a certain static load, press into the coating surface or section of the sample to obtain the corresponding square pyramid indentation. Then use the micrometer eyepiece to magnify the indentation by a certain magnification, and measure the diagonal length of the indentation.

3. Porosity detection

The porosity of the coating Fuse End Blade Ferrules refers to the small pore size from the surface of the coating to the base metal, which affects the protective ability of the coating. The commonly used methods for measuring porosity in our laboratory include gas corrosion method, copper sulfate deposition method, etc.

4. Salt spray detection

Simulate the climate conditions of the ocean or salty and humid areas to evaluate the resistance to salt spray corrosion of products Fuse Fuse End Tag, materials and their protective layers.The artificial accelerated corrosion test of metal coating is mainly used to quickly identify the quality of the coating, such as porosity, whether the thickness meets the requirements, whether the coating of Fuse Link Contact is defective, and whether the process quality of the coating End Blade Ferrules is qualified; it is also used to compare the resistance of different coatings to atmospheric corrosion.

Etichetta sexy: Cap e contatto esterni per nuovi fusibili per auto energetiche, Cina, produttori, fornitori, fabbrica