Tungsten Titanium
What is tungsten? Do you know of tungsten products?
Tungsten is a steel containing tungsten, and tungsten products contain 18% tungsten.
tungsten carbide , titanium is also called tungsten. Vickers hardness is 10 km, and the hardness after dianond. Only because of this, many products of tungsten (municipality are taken per sample) focused role.
Tungsten is often used to make cutting tools, impact borer, drill glass sword, plates and ceramic tiles. Is annealed solid paste, but not too fragile, for rare metals.
Sintered tungsten powder molding is urgent, the sintering temperature heat a defined target (temperature sintering), and maintain a certain period of time (time), then the heat and cool, with a view to obtaining the required performance of tungsten steel materials.
tungsten sintering process can be divided into four basic phases:
1: Abduction and Training Officer, at this stage on fire sintering step below:
casting agent, shrinkage sintering temperature at first, gradually casting breakdown agents or evaporation, which eliminates the sintering, in turn, casting agent agglomeration of more or less, increased carbon emissions. With casting, the amount and the sintering process of change. surface oxides are reduced to dust in the sintering temperature, hydrogen can recover cobalt and tungsten oxide on the elimination of void formation if the reaction and sintering agent, carbon and oxygen is not strong. Dust particles. The contact phase stress, metal powder folder started to respond and recrystallization, diffusion of the surface of the block of the press has begun to improve strength.
2: the solid phase sintering step (800 eutectic temperature) –
In temperature, the liquid used in the scenario with the exception continue the process of what happened, if you gain pretty strong, increasing the distribution of plastic flow, congestion apparent withdrawal.
sintering liquid phase (eutectic temperature sintering) – 3
When the agglomeration seems fluid extraction, then produce crystals completed before change, formed the basic structure and organization of the alloys.
4: cooling (room) temperature sintering –
At this stage, the organization and composition of tungsten steel phase and cooling conditions with little change can use this heat in tungsten steel improve their physical and mechanical properties.
For more information about tungsten, link please: http://www.tungstenjewelryshop.com/
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Tungsten Carbide and Titanium Wedding Bands
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