framing nails coil

Good galvanized wire, plating thickness of 3- 4 mm, zinc adhesion should be less than 460 grams/m, that is, the average thickness of zinc layer is not less than 65 microns. When the thickness of plated parts is greater than 4 mm, the zinc adhesion should not be less than 610 g/m, that is, the average thickness of zinc layer should not be less than 86 microns. Standard galvanized wire coating must be uniform, galvanized layer basically uniform with copper sulfate solution test etching five times no dew iron. For standard galvanized wire coating adhesion requirements, the zinc layer of plated parts should be firmly combined with the basic metal and have enough adhesion strength, after hammer test does not fall off, not convex.

In white iron, its carbon and iron phase into iron carbide, crack white, extremely strong and brittle, for the malleable steel material. Alloy grades are made up of various alloying elements with different compositions and structures. Because the alloy element in the iron can make the copper material thick strengthening degree, hardness, impact force, strength resistance, collection rate, elongation rate, so the alloy iron in the exercise of high quality iron, is an additive element.

Stainless steel blade barbed wire production process is similar to galvanized blade barbed wire production process, usually according to the mold to determine the size of the blade.