Chapter 889 Stainless Steel

Amiru's guess was right, Dahua and the hundreds of people naturally couldn't do anything to them.

A centurion fired hundreds of guns outside the city of Calcutta, and after shooting at the Indian defenders, they retreated, and even the warships withdrew directly from the port.

Although the navy of the Mughal Empire was vulnerable, ants killed many elephants.

Even if those people are rowing fishing boats, they can surround and capture Dahua's cruiser from all directions.

Although the Chinese army can cause great damage to the opponent, there is no need to take risks.

The effect of creating conflict has been achieved, they withdrew to Colombo, and then sent news to the country, waiting for the arrival of the army.

When the news spread to China, the people of Dahua were outraged.

The little Mughal dared to call himself an empire, and he didn't take Dahua seriously. He even dared to rob Dahua's businessmen and shoot at Dahua's army.

Is it tolerable or unbearable?

With the guidance of public opinion and the advocacy of experts, almost all the people agreed with the attack on the Mughals.

The ones who barked the most were people from Fusang and Annan areas.

On the contrary, they are the ones who want Dahua to expand the most, because after conquering the Mughal Empire, they will no longer be the bottom people. At that time, they can also go to India to dominate.

That kind of feeling is comfortable even thinking about it.

With the support of the people, the imperial court complied with the public opinion, saying that it would immediately send a large army to India, and it must be defeated to ensure the safety of every overseas citizen.

Naturally, these beautiful words were once again praised by the people.

At the departure ceremony of the army, countless people came to see him off. The scene was as touching as it was.

In the six years of Yongxing, Dahua not only made major achievements in the military, but also won successively. In terms of domestic development, it has also achieved impressive results.

Back in May, Dahua manufactured the first piece of stainless steel.

Chromium stainless steel, to be precise.

Stainless steel is a general term for steels resistant to air, steam, acid and alkali, and other corrosive media. There are actually hundreds of varieties.

The more common one is chromium stainless steel, which is a steel containing a lot of chromium.

Of course, chromium stainless steel is divided into several types according to the chromium content.

With different chromium content, the characteristics of steel are different, and the scope of application is naturally very different.

The stainless steel Dahua first manufactured was austenitic stainless steel containing more than 18 percent chromium and several other minor elements.

This kind of stainless steel has good plasticity, toughness, and is suitable for welding. It is a steel specially required by the shipbuilding industry.

Although the previous shipbuilding industry has also adopted welding technology, after welding, the interface is prone to bubbles, rust and a series of problems.

Barely usable, but the cost of maintenance is high.

With this kind of stainless steel, the cost incurred in the future and the cost of maintenance can be greatly reduced.

Dahua has more and more machines, and they are used in more and more places, and the rust problem of the machines has been exposed, which has become a great trouble.

Although there are also people who are trying to study and solve it, the progress is slow.

In the end, it was Fu Xun, the general manager of the iron and steel plant, who reported to Wu Changqing cheekily, hoping that Wu Changqing could ask the Ministry of Science and Technology to recruit some people to form a special research team to solve this problem.

For a long time, Dahua's major scientific and technological progress has been made by the scientific and technological team.

So Fu Xun also wanted to seek help in this regard.

The emperor has a lot to do every day, so it is very rash to bother the emperor with such a trivial matter.

However, in the eyes of Wu Changqing, it may not be so small in the eyes of other officials.

After he learned of the demand for various special-performance steels in the market, he immediately arranged for people to specialize in the research of stainless steel.

This time he spent a lot of money, spent a lot of resource points, and exchanged all the special steels, each of which was exchanged for one hundred catties, all of which were used for research.

At the same time, the manufacturing principle, process, and composition of each special steel are also exchanged for technology points.

The value of these things is currently priceless.

Simply relying on the self-propelled evolution of the society, if the stainless steel industry wants to develop to maturity, it will be a delusion every one hundred years.

As for Wu Changqing, this is equivalent to taking out the achievements of more than a hundred years in one go.

As long as these people concentrate on research in the future, it is estimated that they will be able to fully understand it in two or three years.

After all, there are recipes, technological processes, and samples. They don't need in-depth research, and they can be manufactured according to the process.

As long as these stainless steels can be made, the inner principle is not particularly important.

Just like the previous gunpowder muskets, they don't know that the bullets are fired because the gunpowder burns violently to generate high temperature and pressure, and they don't know that the internal energy is converted into mechanical energy.

But it doesn't matter, this does not affect the large-scale use of muskets.

Although this is a bit of a feeling of knowing but not knowing why, it really has little impact on development, and the theory can be left to study later.

The same is true for those who study stainless steel now. They don't know why those steels with different components will show different properties.

But it doesn't matter, just use it in different places according to different characteristics.

Resistant to steam corrosion, used to make steam engine parts.

High temperature and high pressure

for boilers.

It is resistant to acid and alkali corrosion, and is used to make tableware and chemical machinery.

The ones with high strength can be used to make steam turbine blades, engines, etc.

In addition to these samples and technical blueprints, Wu Changqing also exchanged a large amount of rare metals.

Chromium, lithium, radium, gallium, rare earths, actinides, lanthanides...

For metals that are very rare, do not know where to mine for the time being, or are extremely difficult to mine, Wu Changqing will exchange them

Quite a few, for research, as well as industrial use.

This is actually a bit wasteful. After all, as long as people are sent to increase exploration efforts, these minerals can still be found on the earth.

However, it takes time.

On the one hand, Wu Changqing sent people to explore, and on the other hand, he directly exchanged some of them to meet the current industrial needs, in order not to delay the development of the industry.

After all, to manufacture those stainless steels, technology is not enough, but raw materials are also required.

Wu Changqing did this mainly because of the recent surge in territory and resource points.

This time, Wu Changqing consumed a total of more than 20 million resource points and more than 5 million technology points.

The resource consumption this time is directly more than the sum of previous consumption.

Of course, the resources exchanged this time are enough for the steel industry to use for three or four years.

Three or four years later, these rare metal mines should also be found, and the demand can be solved through mining to achieve a perfect transition.