Electrical Trimetal Rivet Specifications

1.Contact Rivet are made by Cold Pressure Welding Machine. 
2.It is much easier to choose layer .

• Diameter: 2.5-8mm

• ROHS compliant

• Used generally in undercurrent contact devices, auto switches and precision instrument

• Have good current conductivity and thermal conductivity, low but stable contact resistance and less but even electrolytic corrosion

• When application under direct current condition, there is less plane shape material migration producing, when it is actuated

• Contact resistance increases as a result of the oxide compound production, sensitive to the sulfur, poor anti-fusibility to weld

• Ability under big electric current condition


Electrical Trimetal Contact Rivet for Relay Feature:


-Reduce electrical appliances' manufacture cost;

-Suit for electrical appliances with switching function;

-Save vast of rare metal and cut down manufacture procedure.

4. Specification:


Item	head diameter D(mm)	head thickness T(mm)	layer thickness S(mm)	shank diameter d(mm)	Shank length L(mm)	sphere radium SR(mm)	mold ratio θ
Specification	2.5	0.6~1.5	0.3~0.4	1.2, 1.5	1~2	4, 6	9
	3.0	0.8~1.2	0.3~0.5	1.50		6, 8
	3.5			1.0, 2.0	1~3 2~4
	4.0	1.0~1.5		2.0		8, 10
	4.5			2.0 ,2.5
	5.0	1.0~2.0	0.4·0.6	2.5		10, 15
	5.5			2.5, 3.0
	6.0			3.0		15, 20
	6.5	1.2~2.0	0.5~0.7	3.0, 3.5
	7.0			3.5		25, 20
	8.0			4.0
Tolerance	±0.05	±0.03	S<0.4(+0.06) s="">0.4(±0.06)	-0.03~0.08	+0.03	SR<6±1 SR>6±1.5	± 2


Application of Tri-metal Silver Contact Rivet
-Trimetal Contact Rivet for Relay is widely used in contacts with different current, all kinds of relay, single pole, double pole, and multi-pole switch, leak electricity switch, cam swithc, indoor constant temperature device, automobile contact, photo-switch, micro-switch and variety switch of aviation industry.

Ningbo Hanbo Precious Alloy Co., Ltd. we are the manufacturer of silver based electrical contact materials, contact rivets and contact assemblies. We has already adopted the Management System Certification of ISO/TS16949:2009, ISO9001:2008 and ISO14001:2004.Our goal is to become a well-known company, the leading manufacturer of electrical and electronic materials in the world, and for the sustainable development of human society to contribute a force.



The quotation of Tri-metal Rivet Contact is changeable based on the adjustment of the Silver price.