Cold galvanized wire calculation method
Tensile strength and calculation method of cold galvanized wire: the calculation method of the steel wire cross section area of mm2 *0.7854
Steel wire broken Newton (N) / cross section area mm2= strength MPa
Cold galvanized wire uses: cold galvanized wire is galvanized layer thickness, corrosion resistance ability, galvanized layer stability characteristics. The products are widely used in construction, highway fence, embroider, netting, communication devices, medical devices and weaving nets, brushes, cables, filters, high pressure pipe, built building, tasting skills etc. occupation.
1, cold galvanized wire test method
A and zinc adhesion were measured by magnetic thickness gauge, and the thickness of zinc layer was measured directly.
B, coating uniformity determination of copper sulfate solution selection test method.
2, cold galvanized wire stretching method
A, the zinc coating adhesion amount, zinc layer thickness, uniformity of zinc coating, adhesion controversial, samples and products under the same technical condition galvanized experiment was carried out to do not meet the need of the standard for the unqualified products.
B, product factory testing method, first if not qualified, then according to the relevant provisions of the testing, if still not qualified, then determine the the batch of the product is unqualified.3, cold galvanized wire inspection storage
A, examination of qualified plating should be full-time inspection staff written visa, can be an example of the qualified department.
B, qualified products should be packed in a variety of specifications.
4, cold galvanized wire skill flow chart:
Supplied parts inspection and pre eradication - degreasing, cleaning and pickling of Qing - acid - leaching solvent - dry - cold galvanized - in addition to the excess zinc - cooling, purification, cleaning and self renovation - product inspection - qualified factory
Cold galvanized wire according to its use can be: building tied with wire is 22# (0.71mm), the price is low, the soft characteristics of good toughness, is not easy to be broken is construction industry the most ideal by tying silk one, mainly adopt the disposal of low zinc wire.
Cold galvanized wire: the difference between cold and hot galvanized zinc is not the same as the amount of zinc, can be identified from the color of them, cold galvanized color shiny white with yellow. Hot dip galvanized white.
Cold galvanized wire with low carbon steel as the core, through the wire drawing, metal composite material made of galvanized processing skills. With a galvanized layer thickness, corrosion resistance ability, galvanized layer stability characteristics. The products are widely used in construction, highway fence, Zhahua, nets profession.
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