Buy tantalum at prices from the manufacturer offers the company Elektrovek-steel. The supplier guarantees timely delivery of products to any point set by the customer.
Features of machining of tantalum
Tantalum processing is difficult. Metal adheres to the surface of the lathe incisors, and causes surface damage to the workpieces, so only unannealed tantalum is suitable for turning. For the successful mechanical processing, the chemical composition of the blanks is also important: pure tantalum is processed by turning less than doped with tungsten, molybdenum and other metals.
When turning, a significant amount of heat is released on the surface, so the turning is carried out with an abundant supply of lubricant. As a lubricant is used not ordinary oil, but such lubricating-cooling liquids as perchlorethylene,
Trichloroethane or Moly-Dee. Grease supply must be carried out continuously.
When turning tantalum blanks, a tool made of mineral ceramics or high-speed steels is used. Recommended speeds of spindle rotation of the lathe not lower than 1750 rpm.
Drilling tantalum in general is difficult. The most suitable for this purpose are hard-alloy winning drills at a rotational speed of 750… 850 min -1 .
Grinding of tantalum is extremely difficult, therefore only non-burnt blanks are used, and aluminum oxide is used as a grinding material.
Buy tantalum at prices from the manufacturer offers the company Elektrovek-steel. The supplier guarantees delivery of products to any point set by the customer.
Special safety rules for machining tantalum
Since tantalum dust can have a risk of igniting on contact with oxygen, a special danger is the chips. Spontaneous ignition is particularly flammable when drilling and turning.
Accidental ignition of tantalum chips occurs also when trying to collect mechanical processing waste of a given metal. The reason is that tantalum dust has a minimum energy of ignition
The magnitude of the explosion of tantalum dust is classified as severe (Kst = 273), which contradicts the classification indicated in the previous literature. It was also found that the minimum ignition energies (both for the dust cloud and for the dust layer of the tantalum powder). The structure of tantalum chips is such that it can increase the danger of fire and explosion, and affect its sensitivity to electrostatic sparks due to an increase in the particle surface area. Thin,
The conductive oxide layer of the surface of the tantalum powder has a high resistivity, and generates an electrostatic charge in friction with conductive materials. Thus, the most likely cause of ignition is electrostatic discharge.
Electrovek-Steel offers tantalum at producer prices. The supplier ensures the delivery of products to any point specified by the consumer.