Welding and cutting of copper-Nickel alloys
Are you interested in welding and cutting of copper-Nickel alloys? Supplier KMZ offers to buy copper alloys at economical price. Welding and cutting is performed under the order. The provider ensures timely delivery of products at any address specified by the consumer.
Cutting of copper-Nickel alloys is produced mainly by the method of plastic shear, used:
- Crank, roller or plate shears with inclined blade — for flat workpieces (roll, sheet);
- Profile cutters differential clamp of the bar for three-dimensional profiles of metal;
- Combined shears for profiles, which are obtained by hot pressing.
Other cutting methods is of limited use cutting friction on the friction disk saws. The use of mechanical cutting, no matter which tool is used — moving reciprocating or rotary — high quality cut surface does not provide due to the presence of coarse continuous chip, which is hammered into the cutting teeth, reducing the durability of the tool.
Preparation for welding
In preparation for welding is required to limit the content of permissible impurities phosphorus and sulfur: not more than 0.02% and 0.05%, respectively. In addition, limited percentage of zinc (not more than 0.5%), lead (not more than 0.02%) and carbon (not more than 0.05%). These limitations are related to the weldability should be met, as when welding may become a significant problem: the deviation of the arc and a large number of cracks, especially in areas exposed to heat.
For welding copper-Nickel alloys are used:
- Manual arc welding with coated electrodes;
- TIG (welding inert gas using a tungsten non-consumable electrode);
- MIG (inert gas welding).
- Much less frequently used plasma and electron-beam welding.
The alloys of the system Cu-Ni welded with the use of special fluxes, which contain in their composition of copper, Nickel and iron, or electrodes with surface coatings. Preheating is not required, since the Nickel content reduces the thermal conductivity of the base metal. This also applies to manual metallotorgovoj welding.
Optimization of welding
During welding, the optimum strength of the base metal can be obtained at lower welding speeds due to the rapid ageing processes in these alloys. Good results can be performed in a thin strip without filler with microplasma equipment. It should be noted that the heating of the metal during fusion welding reduces the hardened state. Aging possible again after heat treatments and quenching. The fusion welding is used for repair of pumps and valves. Resistance welding is considered to be generic for alloys of the system Cu-Ni.
Are you interested in welding and cutting of copper-Nickel alloys? Supplier KMZ offers to buy copper alloys at economical price. The provider ensures timely delivery of products at any address specified by the consumer.
To buy any copper-Nickel alloy provider KMZ can at an affordable price. The price is formed based on the European standards of production. To buy any of the copper alloy at a reasonable price, you can wholesale or retail. Welding and roskapostista under the order. Regular customers can take advantage of the discount system of discounts from the company KMZ.
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