Fuse Brass Cap
Products Description
Compared to ordinary metal encapsulated components, this series of Fuse Brass Caps has three core features: First, wide material compatibility, covering the entire range of high-quality brass grades from H59 to H68, allowing for precise material matching based on the fuse's power rating, operating environment, and cost requirements; second, high molding precision, with strict control over cap dimensional tolerances and a smooth, burr-free inner wall, ensuring a perfect fit with the fuse tube and fusible element, avoiding conductive instability caused by assembly gaps; and third, strong environmental resistance, thanks to the excellent corrosion resistance, thermal conductivity, and mechanical stability of brass alloys, enabling long-term stable operation in a wide temperature range of -50℃ to +180℃ and in complex environments such as humid and dusty conditions, making it suitable for demanding scenarios in industrial control, new energy, automotive electronics, and many other fields.
Detailed Quality Showcase: True Quality Revealed in the Details
Cap Body Details
Utilizing multi-stage precision stretching molding, the Brass Terminal Cap body surface is smooth and flawless, with uniform color. The cap opening edge features a rounded chamfer design, free of burrs and sharp edges, preventing damage to the fuse tube and operators during assembly. The smooth and flat inner wall fits tightly with the molten metal and tube, ensuring stable conductivity.
Positioning Details
The internal positioning bosses are precisely sized, fitting tightly with the molten metal without any looseness. The rounded transition design of the bosses prevents damage to the molten metal surface, ensuring normal melting performance. The positioning structure can be flexibly adjusted for different molten metal types, offering strong adaptability.
Surface Treatment Details
Passivated Brass Pipe End Caps have a natural gloss and are free of oxidation spots. Tin-plated/silver-plated products have a uniform and dense surface, free of bubbles, peeling, and exposed substrate. The surface treatment layer has strong adhesion, remaining intact even after repeated insertion and removal during assembly, ensuring long-term corrosion resistance.
Dimensional accuracy details
The deviation of key dimensions (inner diameter, wall thickness, height) is controlled within ±0.02mm, and the dimensional consistency of products in the same batch is high; the verticality and roundness errors of the Brass Tube End Cap body are extremely small, ensuring precise assembly with the tube body and avoiding assembly problems such as skewing and loosening.
H65 (C26800) Brass: The Golden Balance
H65 brass, containing approximately 65% copper and 35% zinc, is known as "commercial brass" and is an ideal material for manufacturing fuse inner caps.
Exceptional Cold Working Properties: H65 possesses excellent plasticity and ductility. During deep drawing or cold heading, it flows and deforms readily, filling every nook and cranny of the mold without cracking. This results in Brass Fitting End Caps with uniform wall thickness and a mirror-like surface.
Moderate Mechanical Strength: After work hardening, H65 possesses sufficient hardness to clamp the glass tube, preventing deformation during subsequent high-temperature potting or welding, while retaining sufficient toughness to prevent brittleness upon impact.
Application Advantages: Delivering on Promises in Harsh Scenarios
New Energy Power Conversion Systems
Facing high-fluctuation current and temperature cycling, the Brass Solder End Cap's stable contact resistance and stress relaxation resistance ensure the accuracy of the fuse's thermal parameters, preventing malfunctions. Its excellent conductivity directly reduces system path losses, improving energy efficiency.
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Industrial Motor Drives and Inverters
In environments with continuous vibration and shock, the robust bond between the Brass End Piece, the core, and the housing prevents contact degradation or structural failure caused by internal fretting, ensuring continuous equipment operation.
02
Data Center and Communication Power Supplies
For applications with extremely high space and reliability requirements, the Copper Solder Cap 's precise dimensions ensure accurate fuse installation in compact modules, while its highly conductive plating helps reduce heat generation, increasing power density and extending equipment lifespan.
03
Protection Relays and Smart Meters
As part of the metering and protection circuit, the long-term stability of the Brass Plumbing Cap's electrical performance directly affects measurement accuracy and the precision of protection actions, forming the basis for meeting relevant industry standards (such as UL and IEC).
04
Rail Transit and Marine Electrical Systems
Facing high humidity, high salt spray, and wide temperature environments, the corrosion resistance of the inner cap's material and targeted surface treatments provides a robust barrier against harsh weather conditions, ensuring that critical protection functions do not fail.
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