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Ball screw bearings can be said to be one of the two most critical and core parts of modern high-precision machine tools.

His main role is that he can convert the work done by the AC servo motor from rotary motion to linear motion, or linear motion into rotary motion.

Its effect is somewhat similar to that of the transmission used in the powertrain of a car, which converts the energy into torque, which then converts the torque into axial repetitive force.

This component is currently the most commonly used transmission element in the world's machine tools or precision machinery.

At present, the world's mainstream high-precision CNC machine tools, the machining arm, forward, rotation and other series of processing actions are almost controlled by this ball screw bearing.

This kind of machinery does not seem to be difficult to manufacture, but it is easy to say, it is not so simple, the key to this ball screw bearing is the ball inside.

It is important to know that the ball screw bearing can convert the rotary motion into linear motion, or reverse the linear motion and convert it back into the rotary motion, which depends on the balls inside.

It is precisely by relying on the back and forth movement and friction of the ball in the groove above the screw that the corresponding power can be provided to the screw and the corresponding work can be made.

Therefore, the requirements for ball screw bearings for balls are very high, and the balls are required to be able to work in a high-temperature environment, and they are also required to be corrosion-resistant, hardness is sufficient, and so on.

This requires that the production of balls must have excellent skills, so since the birth of ball screw bearings, the world's major machinery manufacturing powers, have been studying how to produce balls that can have high hardness, high temperature resistance, and long working life.

With the continuous development of science and technology, as well as the continuous progress of chemistry and other sciences, the balls produced by human beings are more and more able to meet the requirements of the working conditions originally set by people.

However, these technologies are generally in the hands of the world's industrial powers.

And our Celestial Empire, although it is known as the world's factory and the world's number one industrial power, but in fact, in this core part, our skills are far from others.

Even after five years, when China has been known as the world's number one machine tool manufacturing country, China's mastery of the real core components of machine tools is not much.

The core components of many high-end machine tools produced in China, such as ball screw bearings and AC servo motors, have to be imported from foreign countries.

This is just like many so-called domestic cars in China at that time, in fact, the engine and transmission also rely on imports from foreign enterprises.

And even if we can introduce this kind of ball screw bearing, or AC servo motor from abroad, the Germans and Japanese are also very strict about these components exported to our country.

will only sell us some high-priced second-rate products, which they have eliminated, and as for first-rate products, they will definitely not sell us.

I believe that as long as people who have really come into contact with China's machine tool products know this, the same specification of CNC machine tools, the maximum speed of the machine tool in Germany or Japan can reach 4,000 to 5,000 revolutions per minute, and the maximum speed of our carving knife is only 1,000 to 1500 revolutions, and the difference between people is not a star and a half.

Among them, in terms of ball screw bearings, the worst point we have is the balls used in them.

But anyone who has engaged in industrial processing engineering may know how bad China's heat treatment is, when foreign countries want to produce a very strong and durable steel workpiece products, foreign industrial enterprises, for the final workpiece before and after the heat treatment control is very strict. …,

Sometimes when a furnace of molten steel is smelted to the end, and then poured into the casting billet to prepare for molding, the final heat treatment alone may consume more than 30 hours, or even more than 40 hours.

In addition, various means are used during the final heat treatment, such as the use of shock waves to perform spectral vibrations, adjust the order of iron molecules inside the casting, remove internal stresses, and so on.

Then, after the casting is formed, after grinding and polishing, the plating step will be carried out to enhance the wear-resistant, corrosion-resistant, hard, high-temperature resistance of the workpiece, etc.

It is this kind of meticulous and orderly work that ultimately leads to the casting that others refine is much more durable than ours.

However, on the other hand, our industrial castings, such as the balls we produce, are used in the same ball screws as others, and other people's balls can be replaced in a year, while ours may only take three months, or even only one month, and there will be serious surface wear, cracks, and even fracture and crushing.

The reason for this is that we do not pass the final heat treatment step in the processing of castings, and even some factories are even more terrible, in order to save costs, the workpiece will not be heat treated at all.

Because the process required for heat treatment is time-consuming and complicated, the cost will increase, and some unscrupulous factories will not do any heat treatment on the processed balls in order to save such costs.

And such balls can also be used in some mechanical tools that do not require too high quality, once used in machine tools, it will immediately be bad.

Of course, there are some serious and responsible enterprises in China that want to overcome these problems, but in terms of the final heat treatment means, they have studied for many years, but they have not understood how the final processing process should be carried out.

You must know that the final heat treatment of this steel casting, foreigners have explored the technology for hundreds of years, of course, they want to cherish the broom, and they will never take it out to the public.

And the state of scientific research in our country, three days of fishing and two days of drying nets, everywhere is full of laymen leading insiders, and politics is overwhelming.

In the country's scientific research institutes, it often happens that the leaders frequently change the car, and they have the money to drink Moutai, but they have no money to conduct experiments for scientists.

is such a so-called essence of scientific research, and if you can understand the accumulation of scientific research for hundreds of years, then there is a ghost!

But Jin Xiaoqiang is different here, he directly got a large amount of smelting technology from Naruto Shenxing, after so many years, he specially organized the people to study and absorb, it can be said that the special smelting brought by Nato Shenxing is just absorbed.

Moreover, he also told Nato to be cautious, use his network, and keep an eye on their latest special steel smelting technology from Japan, and if there is any trouble, if he can make a move, he must definitely get their latest smelting technology, and he doesn't care how much money it costs.

And in the interior of his special steel smelting center, Jin Xiaoqiang also invested a lot of money, to his own scientific researchers, you don't have to worry about insufficient funds, as long as you have good ideas, good ideas, boldly do it, to experiment.

We don't know anything else about Huayang Power, but money is definitely not a problem, and if you can successfully experiment and make a new variety of alloy, then the head office will definitely reward you.

It is in the case of such a large amount of capital investment and the opening of the way with bonuses that Jin Xiaoqiang smashed out the smelting technology of ball special alloy steel, which has been tightly sealed by the Germans and the Japanese.

Looking at the shiny balls in the silver steel tray pointed by Binxinwei, Jin Xiaoqiang was also agitated for a while, and finally in the field of machine tools, we Huayang Power has taken another big step! …,

"Mr. Jin, this is what I have been soaking in our special steel smelting center some time ago, and where the technical staff has spent five months, on the basis of the technical information you provide, constantly exploring and improving, and the balls produced. I can say very responsibly that the balls we are producing now can reach the same level as those made in Japan in terms of performance, and can reach 98% of the power of the balls produced in Germany. ”

Zhang Hainan's expression was slightly proud, but more excited, finally, finally engaged in machine tool research, engaged in almost 20 years, he finally ushered in a breakthrough for the machine tool manufacturing industry of the Celestial Empire.

"Oh? Tell me more about ......."

"Well, in fact, the pre-production of this ball is almost the same, the difference is that in the final heat treatment stage, the iron ore powder is sent into the furnace to smelt into molten iron, and then after a series of treatments, it becomes a block of plates, and then in the heat treatment stage, it takes more than 36 hours of natural cooling to reduce the furnace temperature from the highest 1,300 degrees to 500 degrees, and then during this period, the spectrum vibration is carried out to eliminate the internal stress inside, and then it is heated to 800 degrees, and then it is slowly cooled naturally. Therefore, the cost of steel in this furnace is very high. After the steel plate is baked, it is cut into small squares of different sizes according to the specifications, and then there is the grinding stage, after grinding, it is coated to coat the balls with a kind of anti-corrosion, and a boron film that can make them hard and resistant to high temperatures......"

Zhang Hainan said with relish, and Jin Xiaoqiang also shook his head when he heard it, and finally overcame the ball production of the biggest henchman of the ball screw bearing.

Haha, I believe that as long as this news is released, there is no need to buy machine tools, no need to buy parts, just buy balls directly, and Huayang Seiko will make a lot of money......

"By the way, Chief Engineer Zhang, when will you be able to use the balls we produce ourselves to manufacture qualified ball screw bearings?"