Molybdenum Wire

Cost Effective Molybdenum Wire For EDM Cutting Applications

Molybdenum wire is used to make printed pins, supports for lamp filaments made from tungsten, leads for halogen lamp bulbs, and electrical tube sockets. It is also used in high-temperature furnace heating elements. The investigation showed that the Community producer that fully co-operated in this case imports large volumes of molybdenum wire from the PRC. The imposition of anti-dumping measures should therefore have a negative impact on the coating division of this user.

High Temperature Resistance

Molybdenum is silvery in appearance, and has the sixth highest melting point of any known metal. Its ability to withstand high temperatures without expanding, softening or weakening makes it an excellent industrial material for any application with high heat and high pressure. It is also less dense than tungsten and has a better strength-to-weight ratio. We produce molybdenum wire in both pure and alloy forms.

Typical alloys include MB (a 50/50 blend of molybdenum and tungsten) and MLa (a molybdenum-lanthanum rare earth blend). Whether we make your molybdenum wire in its purest form or in an alloy, we can supply it to you for use in applications such as printing pins, nuts and screws, halogen lamp holders, and electrical tube sockets.

We also make a variety of molybdenum wire cloth, including silver white molybdenum mesh and black molybdenum mesh with graphite coating. Both types have excellent acid and alkali resistance, oxidation resistance and high temperature resistance, making them ideal for filtering chemical materials and as heat-resistant components in electric furnaces. They are also used in aerospace, machinery manufacturing and the electric-vacuum industry.

High Tensile Strength

Molybdenum wire can withstand high temperatures and is resistant to corrosion. It is used as a heating material for high temperature resistance furnaces and for electrical components, such as electronic tube sockets. It is also often used as a replacement for lead wire in stent filament incandescent lamps and halogen lamps. It is ideal for power tube grids and as glass-to-metal seals. Because of its high tensile strength, it is an excellent choice for EDM. Its tensile strength allows it to be cut more quickly while maintaining very tight kerfs and near-sharp, inside corner radii. It also resists breaking much better than copper-family wires.

In some cases, such as medical and military applications, there are strict requirements for no copper or zinc contamination on the surface of the wire-cut part. This forces these applications to use a molybdenum or tungsten wire. Several versions of molybdenum and tungsten alloy wire are available with a steel-core to provide the strength and break-resistance of molybdenum with the cutting performance of brass.

High Removable Rate

Molybdenum has a higher melting point than copper or brass, and can be used in wire cutting EDM machines to cut tougher materials. It also has a lower tensile strength and elongation, meaning it can resist higher pulling forces during cutting than copper or brass wires. Molybdenum comes in a wide variety of sizes, from less than 0.001 inches to 0.187 inches. The size is usually expressed in terms of inches or mils (one thousandths of an inch), but for very thin wire, the size may be expressed as the weight of a given length of wire, rather than the diameter.

Elmet offers four types of Cost effective molybdenum wire: pure, HCT (potassium silicate doped), MoLa (lanthanum oxide doped), and MB (molybdenum-tungsten alloy-various compositions). All products are available in a range of diameters and surface conditions. They are used in standard applications for production of mandrels, supports, furnace elements, and furnace windings. They are also used in more demanding applications, like halogen lamp leads, where superior weld ability and glass-to-metal seal properties are required.

Long Life

Molybdenum can be made into pure metal wires that are used for a wide variety of purposes. These include printing pins, nuts and bolts, halogen lamp holders and other high-temperature components. It can also be combined with other precious metals, such as tungsten, to make a range of alloys. These are used for a variety of high-temperature applications, including electronic tube reeds and grids.

The molybdenum wire that is used for the production of these parts has a very long service life. However, it is important to keep in mind that the performance of the wire depends on how it is processed. For example, the wire should not be bent during the manufacturing process, since this can lead to a loss of tensile strength and electrical conductivity. In addition, it is important to ensure that the cutting fluid is changed regularly to prevent corrosion. This can help to avoid the short circuit and broken wire phenomenon, which can be a serious problem for wire-cutting processing enterprises.

Final Thought

0.18mm molybdenum wire is ideal for EDM cutting applications that require good discharge effect and high tensile strength. It has small amounts of lanthanum which makes it creep resistant to high temperatures. Compared to copper-family wires, re-usable molybdenum wires leave very few spark craters on the surface of the workpiece. This leads to a better lifetime and surface quality.

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