What are metallurgical constraints (equipment)?

Yes, the pressure must not exceed the metallurgical constraints; there is a maximum pressure allowed during the manufacturing process. Do not exceed. For example, a heuristic genetic algorithm (GA) for numerical simulation, guided by metallurgical constraints, was proposed to study the influence of technological parameters on the temperature field of steel billets – an effect that cannot be investigated through experiments. To address the situation where it is difficult to use experiments to examine the impact of process parameters on the temperature field of cast billets, an heuristic GA-based numerical simulation optimization method, guided by metallurgical cooling conditions, was developed to provide a theoretical basis for optimizing these process parameters.

metallurgical constraints is translated as: the yield limit of materials in the context of materials.

-- \"Constraints\" takes a plural form; in my opinion, it is more appropriate to use it to refer to the limitations in metallurgy. --

metallurgical constraints = metallurgical limitation criteria

The literal translation is “smelting constraints”; after checking the link http://g.tgnet.cn/yhscd/BBS/Detail/200812224484767823/, my personal understanding is that it refers to the “strength limit of alloying elements”, similar to the strength properties determined by the composition. Conditions for determining heating and cooling rates: The heating and cooling rates should be reduced as the amount of alloying elements in the steel and its thickness increase, as well as as the complexity of its structure increases, in order to avoid the generation of new thermal stress. According to China’s standard specifications, the heating rate shall be ≤ 200°C/h, and the cooling rate shall be ≤ 260°C/h. For large-scale structures and complex structures, etc., to avoid heating temperature differences, smaller heating and cooling rates should be used. Generally, for carbon steel, it can be as low as 50°C/h, while for alloy structural steel, it can be as low as 20°C/h. At the same time, measures such as reinforcement or strengthening of supports can be taken to prevent deformation. Furthermore, for certain steel grades with a high tendency to temper brittleness, the time spent in the temperature range associated with temper brittleness should be minimized, and the rates of heating and cooling should not be too slow.

To avoid reduction of metal oxidation and hydrogen embrittlement of the reactor, the pressure should never exceed metallurgical constraints. In order to prevent a decline in the reactor’s performance due to metal oxidation and hydrogen embrittlement, the operating pressure of the reactor must not exceed its metallurgical constraints. For more information on what constitutes metallurgical constraints, refer to section 4 of http://www.lw23.com/lunwen_866663157/ under the title \"Guide of technological and metallurgical constraints to bloom cooling\"

This post was last edited by wingman1985 on 2010-3-8 08:28. It’s also an answer from a foreign friend; for now, let’s translate it as “metallurgical constraint”: -------------------------------------------------------------------------------------------------------------- A metallurgical constraint represents the maximum stress that a metal can withstand, taking into account a safety factor, for any given application – whether it’s resistance to hydrogen, tensile strength, or melting properties, etc. For example, you need to hang a weight using a chain within the limits set by its metallurgical constraint. The chain is rated to withstand 2000 pounds, with a safety factor of 2; this means it will break under a load of 4000 pounds, which represents the metallurgical constraint. It is safe to use the chain under a load of 2000 pounds, which corresponds to the practical metallurgical constraint value, ensuring that it remains safe for workers and others. Similarly, there are constraints related to hydrogen embrittlement – the maximum amount of hydrogen that can be present in the working environment, in order to prevent hydrogen from penetrating the metal matrix, thereby making it brittle and reducing one of its metallurgical constraints.

According to Chinese convention, it should be translated as “material constraints” or “material limitations”, which include the highest temperature and highest pressure that the reactor’s metal materials can withstand.