What will be harder to add after the iron burns red??

It will be harder if you add water. It's calledQuenching

The quenching of steel is to heat the steel to a temperature above the critical temperature AC3 (sub-eutectic steel) or AC1 (super-eutectic steel), and keep it warm for a period of time to make it full or partial austenite.

This is a heat treatment process in which the martensite (or bainite) transformation is carried out at a cooling rate greater than the critical cooling rate to below ms (or isothermal near ms).

Usually aluminum alloys, copper alloys, titanium alloys, tempered glass.

Solution treatment of other materials or heat treatment processes with a rapid cooling process are called quenching.

Quenching is a heat treatment process method that heats the steel above the critical temperature, keeps it warm for a certain time, and then cools it at a temperature greater than the critical cooling rate, so as to obtain an unbalanced structure dominated by martensite (bainite or single-phase austenite is also obtained as needed). Quenching is the most widely used process method in steel heat treatment process.

The workpiece is heated to the appropriate temperature, different holding times are used depending on the material and the size of the workpiece, and then slowly cooled (the slowest cooling rate) in order to bring the internal structure of the metal to or near equilibrium, to obtain good process performance and service performance, or to prepare the structure for further quenching.

The heat treatment of steel is generally annealed and normalized.

There are four basic processes of quenching and tempering.

The purpose of quenching is to make the supercooled austenite carry out martensite or bainite transformation to obtain martensite or bainite structure, and then cooperate with tempering at different temperatures to greatly improve the rigidity, hardness, wear resistance and fatigue strength of steel.

and toughness, etc., so as to meet the different use requirements of various mechanical parts and tools. The ferromagnetism of some special steels can also be met by quenching.

Corrosion resistance and other special physical and chemical properties.

Burning red and putting it in water makes the iron harder, a process called quenching.

If the process of naturally cooling the treated parts after they are red is called annealing, it can be made soft.

However, it is very important to burn red to what extent, if the temperature is not suitable, it will be softer, when the temperature is different, the hardness of quenching is also different, and the temperature is not the same when the material is different.

Burning red and putting it in water makes the iron harder, a process called quenching.

How does the red hand iron stick to what is hard to use?

It depends on the material, the carbon content is low and not hard, such as the commonly used structural steel.

High carbon content (such as 45 steel), do not quench with water (it will crack when cooled in water), and cool it naturally.

Medium carbon steel, if the firepower is enough, after it is red, put it in the water, pay attention to observation, do not keep in the water, keep taking it out until it is not red at all, and then put it in the water to cool.

Dip directly in water, soak in water at the end, if it is not hard enough, then burn red and then dip in water, which is called quenching.

Summary. Hello, the temperature at which the iron burns red is between 200 and 260 degrees.

Iron does not burn red at 300.

Hello, the temperature at which the iron burns red is between 200 and 260 degrees.

To give you an example: when the liquefied gas stove continues to heat the iron pot, the temperature on the surface of the iron pot will not continue to rise after it continues to rise to 280 degrees.

But the iron here is not pure iron.

Why does someone have to 800 degrees to burn red?

The red-hot temperature of high-purity iron is 700

Which answer is correct.

Generally, after the iron is heated to 700, it will be slightly red, and as the temperature rises, the pure red will become more and more vivid, and it will melt after touching it until it is incandescent. The melting temperature of pure iron is 1538, and with the increase of the amount of carbon in the iron-carbon alloy, or the increase of other elements, the melting temperature of the steel decreases, and the minimum melting temperature of pereutectic steel is 1148.

How many degrees can an iron pot for cooking burn red?

Strictly speaking, it is 700 800 (high-purity iron).

Iron pot about 200-260

Are you saying that the iron in the iron pot does not belong to high-purity iron, so it can be burned red at 260 degrees?

I will give you a more detailed answer: when the iron is 600 degrees, it will be red and dark red; 800 degrees of orange and red; Above 900 degrees, it will appear orange-yellow to bright yellow. Note that it is not an iron pot.

Is the material of the electric baking pan the same as that of the iron pan?

The iron pot is a traditional kitchen utensil for cooking plum and plum destruction, which generally does not contain toxic substances, but often oxidizes when exposed to water. The main varieties of iron pans are printing pots, ear pots, frying pans, oil pans, frying pancakes, etc. The main ingredient is iron, but it also contains small amounts of sulfur, phosphorus, residual manganese, silicon, carbon, etc.

There are two kinds of electric baking pans on the market, one is cast iron and the other is aluminum.

In other words, how many degrees can a commercial electric baking pan burn red?

Dear netizens, there are no reports on the incident of the electric baking pan burning red, and there is no scientific evidence literature.

If you analyze it according to the cast iron material, 500 can appear dark red.

This problem is actually quite complicated to explain, simply answer it at the level of popular science, if it helps, it would be better to like it (a personal network test, like is voluntary, and not like it reluctantly).

Generally, the steel will become soft when it is red, but to reach the phase change temperature, the steel has a fixed melting point, unlike glass, but there are also some steels that are red-hot, representing the steel high-speed steel.

For some steels to become soft after burning, there are two reasons: 1. The metallographic structure composition changes,,, after it is burned red and burned to the phase change temperature, the incorrect treatment will lead to the change of the metallographic structure of the steel or the problem of crystal transformation, which will lead to the change of the physical properties of the metal.

2. There is carbon in the decarburized ,,, steel, and the carbon tool steel can be divided into high-carbon steel, medium-carbon steel, and low-carbon steel, the more carbon the harder, the less and softer, the iron and the carbon inside will be oxidized in the air after burning, and if it is burned for too long, it will be decarburized, resulting in low hardness after quenching.

The wire that hardens when burned red should be red copper!

Because iron undergoes chemical changes at high temperatures,!!The iron molecule turns into ferric ions, and the ferric ions appear red!