The shape of electric contact of three composite rivets is generally the head and feet are made of silver alloy, and the middle matrix is copper
appearance
1 products face should be without oil, indentation and crack.
2 cladding should be uniform, the surface around the base material don't allow nudity.
3 stratified side should be no crack, combined with the outer edge should be no visible layers.
4 products edge, defect: the tail should be no visible cracks
Dimensional tolerance of electric contact for three composite rivets
1 Product end diameter (d) should be 0.5D
2 Holdings products nail head s cladding thickness, and the relationship between the head thickness T appropriate for: s = T (0.3 ~ 0.6).
3 nail product tail after S2 layer thickness and nail head after layer thickness s relationship should be as follows: S2 = s (1.2 ~ 1.5).
4 for product size if there is any special requirement, be determined by supply and demand both sides talks things over.
three electrical contact composite rivet head of complex layer and the substrate bonding strength after flattening, combined with surface crack depth and the maximum length of the "flattening deformation ratio should be not more than 1/5: rivet tail of complex layer and the substrate bonding strength after flattening, combined with surface crack depth, and the ratio of the maximum length should be squashed deformation.
packing requirement
1 product labels should indicate the following contents: the product namespecificationsManufacturer name, address, product standard number of execution;A production date or batch number.
2 every batch of products should be accompanied by manufacturer's certificate, when the buyer need to provide a guarantee of quality at the same time.
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