The price of iron and steel has risen vigorously for a long time for the people of Chang'an City, and it has ended like a tiger.

After the eldest grandson's family took the lead in cutting meat, the other followers looked wrong, and they also took action.

Suddenly, the price of steel in Chang'an City not only fell to the level at the beginning of last year, but also one or two percent lower than that.

After this battle, Du He was left silently at home.

The eldest grandson Wuji is also secretly worried about when Li Kuan will continue to reduce the price.

As the core industry of the eldest grandson's family, what hurts the eldest grandson Wuji is not how much money he lost this time, but that there will be no windfall profits in iron and steel in the future.

This loss, in the long run, is much greater than this one.

In order not to further stimulate Li Kuan, the eldest grandson Wuji even secretly instructed the children of the family not to conflict with the Chu Wangfu recently, lest the situation fall out of control.

And the iron-making workshop of the Chu Wangfu can be regarded as officially entering the vision of the noble family.

There has been a breakthrough in the steel industry, and Li Kuan naturally thought of a series of basic industries.

It's like there are some small things that I haven't done before, not because they're unimportant, but because I don't think the time is right.

Now, it's time to think about it.

In the Gewu Building of Guanshishan Academy, Dai Quan was telling the college of Gewu College about his understanding of machinery.

Some people may think that the word mechanical came from the West, but it is not.

There is such a sentence in "Han Feizi": "Judging the advantages of terrain, boats, vehicles, and machinery, if you use less force and achieve great success, you will enter more." ”

Although the machinery in this is not exactly the same as the machinery of later generations, it is basically close.

"The benefits of machinery, I have already explained to you just now, this is also the reason why His Royal Highness the King of Chu set up a special mechanical workshop under the Gewu Academy, and selected craftsmen from each workshop to fill it."

With steel, it was natural to consider expanding the production of machinery.

The number of workshops in the Chu Palace's mansion is impossible to count for a while.

Many times, it's not that these workshops don't have a demand for machinery, it's that they simply can't buy the right machinery.

"Then I will ask His Royal Highness the King of Chu to give you instructions."

Dai Quan was called over by Li Kuan today, so he naturally knew that Li Kuan had come to Gewu Academy today for other purposes.

There is no "pop" applause, and Datang is not popular with this thing.

On the contrary, when Li Kuan stood on top, there was a solemnity below, and there was silence.

Fortunately, Li Kuan has become accustomed to this atmosphere.

"To make a long story short, the significance of the mechanical workshop is definitely beyond your imagination, and it is not an exaggeration to say that it has been passed down through the ages."

Li Kuan knows very well that the people of this era like the most are those who will be famous for centuries and hope to leave a name in history.

The literati are like this, and the craftsmen at the bottom also have this desire in their hearts.

Of course, the premise is to fill your stomach first.

"Today, I won't be verbose, just assign a few tasks to everyone, make a few small things, this is the first thing in the mechanical workshop, if there are good ones among you, there are your own unique opinions, then the king will not hesitate to reward."

After Li Kuan finished speaking, he took out a large piece of paper from his arms, and after unfolding it, the natural and organic guards came over to help hold it.

"In this picture, the king has drawn a few small things, don't look at these things as small, but they are the most basic things that need to be used in the years after the mechanical workshop, which is of great significance."

Li Kuan was also an engineering student in 985 in his previous life, and he was abused by "Mechanical Drawing" in his freshman year, and he simply drew a few parts drawings of cylindrical roller bearings, gears and bolts, and there was no problem.

Even, in order to allow the craftsmen of the mechanical workshop to have a standardized reference when drawing in the future, Li Kuan also moved some of the drawing rules of later generations.

"This thing, this king called it a cylindrical roller bearing, can be used in many places, the most common is on the axle of a horse-drawn carriage, and on the axle of a waterwheel."

There are too many types of bearings, what to do first, Li Kuan also thought deeply.

Ball bearings are the most common bearings in later generations, and the effect of use is also very good.

However, with Datang's current technology, it is too difficult to make a steel ball of uniform size.

One or two, not impossible.

Large-scale production, it is unrealistic in a short period of time.

Therefore, Li Kuan chose a relatively uncommon cylindrical roller bearing.

This kind of bearing, which uses cylindrical shapes instead of balls, is also difficult to make, but it is much easier than ball bearings.

Moreover, this kind of bearing has an advantage, that is, the bearing capacity is relatively much larger.

As for the friction problem that comes with it, it can only be solved by applying a little more whale oil.

Presumably, with the blessing of whale oil, a high-grade lubricating oil, the life of cylindrical roller bearings can reach an acceptable range.

"Look at this gear, this thing, some people may have seen it, it has been there since the Eastern Han Dynasty. But in this picture, the shape of the teeth will be a little more special, and I hope you can study it carefully to see how to make it, and see if there is a better shape of the teeth. ”

The importance of gears is needless to say.

But as for all mechanical equipment, there are few that do not use gears.

"In the end, this pair of things, the king called bolts and nuts. Despite the fact that it is the smallest of the few, it is probably the most difficult to make. ”

The appearance of bearings and gears was relatively early.

However, bolts and nuts appeared with the emergence of modern machinery, and the main reason is that the threads are too difficult to process.

Even Li Kuan didn't know how to solve it for a while.

Unless it is possible to make a proposed lathe out.

However, today there are no bearings and gears available, where is the lathe?

These few small things, don't look very inconspicuous, but even in later generations, high-tech products are only a few developed countries can do well.

Like gears, the high-end market is almost monopolized by so many manufacturers in the world.

The same gear that looks almost identical, and people make it better than you.

There's a lot of stuff involved.

Of course, Li Kuan didn't expect to come up with any high-tech products from the beginning, and the rice had to be eaten one bite at a time.

For example, the cylindrical roller bearings used in horse-drawn carriages, as long as they can rotate normally and can be used better than today's axles, it is a huge improvement.

Considering these, Li Kuan simply threw out these most basic parts today and gave them to the mechanical workshop under Gewu Academy to develop, and at the same time made Gewu Academy more down-to-earth.

It's small, but it's not small at all.

Li Kuan still has a lot of ideas, whether they can be realized or not depends on how well these basic things are developed.

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