TZM alloy plate billet
- Details
- Category: Molybdenum knowledge
- Published on 26 March 2015
- Written by limei
- Hits: 377
TZM alloy plate of blooming, you need to pay attention to the temperature of the billet, billet lower amount of pressure, quality control during blooming.
1.Determine the breakdown temperature. In selecting the appropriate breakdown temperature, it is necessary to consider past experience, but also consider the volatility of the powder process of smelting system blank. Blooming selected temperature is too high, not only the aluminum billet coarse grains, waste of energy, but also have a negative impact on organizational performance of the finished aluminum; the temperature selected is too low, aluminum billet easy to crack.
2.Determine the Blooming reduction.The total processing rate is a reflection of the degree of deformation size parameter, which determines the microstructure and properties of the plate. Blooming reduction TZM alloy and aluminum slabs, like the use of 25% to 35% of the large deformation. This is because a large amount of deformation not only TZM alloy slab uniform internal deformation, so that in subsequent processing, and will not produce stratification, burst and other defects; but it will also make the TZM alloy slab of the obturator, porosity, etc. crushing closure.
3.Quality control during blooming. Aluminum is easily oxidized in air, aluminum oxide will not only be pressed into the aluminum rolling, forming pits, thus affecting the surface quality of the TZM alloy slab and subsequent smooth rolling process, but also significantly reduce friction, thereby undermining the stable bite conditions and rolling conditions, produce slip phenomenon. In order to reduce the negative impact of aluminum oxide on the rolling process, usually before entering the slab roller, the slab fell twice in the tool table, shake off most of the oxide, and then quickly pushed into rolls. In TZM alloy slab heating stage to have a hydrogen protection system to prevent oxidation of aluminum.
More molybdenum product: http://www.molybdenum.com.cn
Tel: 0592-5129696 Tax：0592-5129797
E-mail:
This email address is being protected from spambots. You need JavaScript enabled to view it.
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com
sales@chinatungsten.com