Deringer-Ney - Direct Melt Composite Contacts

Direct Melt Composite Rivet Contacts

Very economical, for many applications, is the direct melt composite rivet contact. Basic economy is achieved through using precious metals only for the contact facing. This type of contact is made by melting a carefully controlled amount of precious metal face material directly to the nickel-plated rivet eliminating any intermediate bonding material. Nickel-plated steel is most often used as the backing material. As there is no brazing material between the silver and nickel-plate, these contacts perform dependably at high operating temperatures. For a strong, permanent joint, the steel shank is spun or staked to the current carrying arm. Nickel plating reduces any possibility of rust formation. Natural melt radius face is somewhat rougher than a brazed or brazed and coined counterpart. Dimensional accuracy and finish appearance of the natural melt can be improved by coining to the radius desired.

Head:	Available with either natural or coined radius; or flat
Shank:	Solid, indent, tubular, chamfer
Facing:	Fine silver, coin silver or other silver alloys
Backing:	Nickel-plated steel, silver-plated steel, monel, nickel, copper

Direct Melt Composite Rivet Contacts - Radius Faced

Deringer Number	H.D. Head Diameter +-.003	H.T. Head Thickness +-.005	M.T. Material Thickness +-.005	R. Face Radius Natural	S.D. Shank Diameter +-.002	S.L. Shank Length +-.003
CRN-R-093-1	.093	.030	.015	.078	.060	.050
CRN-R-093-2	.093	.045	.030	.050	.060	.050
CRN-R-125-1	.125	.030	.015	.140	.070	.060
CRN-R-125-2	.125	.060	.030	.078	.070	.060
CRN-R-156-1	.156	.030	.015	.218	.080	.060
CRN-R-156-2	.156	.060	.030	.125	.080	.060
CRN-R-187-1	.187	.045	.015	.312	.090	.060
CRN-R-187-2	.187	.060	.030	.156	.090	.060
CRN-R-187-3	.187	.075	.045	.125	.090	.060
CRN-R-218-1	.218	.060	.030	.218	.110	.080
CRN-R-218-2	.218	.075	.045	.156	.110	.080
CRN-R-250-1	.250	.060	.060	.281	.120	.090
CRN-R-250-2	.250	.075	.045	.187	.120	.090
CRN-R-250-3	.250	.090	.030	.281	.120	.090

Deringer number covers dimensions of direct melt composite rivet contact. Specify material separately.
Sizes listed above are typical but not stock items. In addition to the sizes above, Deringer offers a wide range of composites custom-designed to specific requirements.