Are you interested in machining, rolling and deforming zirconia? We offer to buy zirconium from the specialized warehouse of the supplier Evek GmbH with delivery to any city. Full compliance with modern quality standards. Supplier Evek GmbH offers to buy rare-earth metals, the price is optimal in this segment of rolled metal products.

Plastic properties

The density of pure zirconia is 6500 ^kg/m3 and its recrystallization temperature under normal conditions varies between 500...600° C. Zirconium and its alloys are well suited for forging and stamping. Zirconia workpieces are processed predominantly in cold condition, as it actively interacts with oxygen and nitrogen when heated, forming oxides and nitrides. Common this metal contains up to 1.3% hafnium as a metallurgical impurity. This circumstance significantly reduces the cost of the initial billets, so pure zirconium, characterized by extremely high price, is used only for the manufacture of parts of nuclear power systems. In particular, zirconium-containing zirkalloy alloy is used in technologies of manufacturing of nuclear reactor fuel elements.

Smelting

Smelting produces circular or rectangular zirconium ingots. Smelting is performed in electric arc furnaces of crucible type. The material of crucibles is copper, lined with pure zirconium. In order to reduce oxide formation, zirconium smelting is done under vacuum. The metal is remelted to remove residual impurities. Evek GmbH offers to buy zirconium and its alloys at producer prices. The supplier guarantees timely delivery to any location specified by the customer.

Processing modes

1. The most progressive technology includes the following operations and transitions:
2. Heating the starting material to 800 °C in an atmosphere of pure hydrogen;
3. Grinding of _ZrH2 hydride powder into homogeneous fractions;
4. Addition of alloying elements (iron, copper, chromium), required by the technological properties of the metal;
5. Heating of the initial mixture to 1250 ... 1300 ° C followed by pressing at a process pressure of 350 ... 900 MPa.

Atmosphere in furnaces must be reductive; this eliminates oxidation, which leads to a decrease in corrosion resistance of zirconium and its deformability indicators. If subsequent hot rolling or forging is required, the ingots are roughed on a surface grinding machine. After roughing, the blanks are etched in hydrofluoric or nitric acid solution. For heating, resistance ovens are used with controlled atmosphere.

Buy, bargain price

Are you interested in processing, rolling and deforming zirconium? We offer to buy rare earth metals, the price - determined by the technological features of production without including additional costs. The website of Evek GmbH displays information about the latest arrivals of products. It is possible to order rolling of any metal. We invite to partner cooperation.