Low-temperature assembly is a very common assembly method after 60 years, but it is still relatively unfamiliar to people in this era, mainly because of the lack of refrigeration means. The low temperature designed by Li Zhao is not too low, only minus 20 degrees, but this can also solve the problem of assembly clearance very well, and this alone can make the machine tool designed by Li Zhao go up a small step.

And because the alloy performance used by Li Zhao is relatively high, and the accuracy requirements of the parts are also high, after low-temperature assembly, the gap between the parts will be very small, which can also effectively improve the service life of the equipment. As long as it is maintained and used as required, the service life of these equipment will be very long.

In fact, how do these people know that the equipment after 60 years is called powerful, and the use of it requires a constant temperature and dust-free workshop. Which is like now, Li Zhao designed these machine tools also have to consider the use of the environment, if the design is too precise, but can not be used, minus 20 degrees is basically appropriate, as long as the temperature is not too high or too low, the operation of the equipment will not have much problem.

At this time, everyone also suddenly realized, they all understood the principle, it is nothing more than thermal expansion and cold contraction, but few people think about this to the assembly machine, and no one regards this as an assembly means. They may use this method when repairing equipment, but no one really uses it as a regular tool.

Seeing that everyone was stunned, Li Zhao continued: "The assembly temperature I set for these equipment is minus 20 degrees, and the temperature will be about 40 degrees when the equipment is running normally, so that there is a temperature difference of about 50 or 60 degrees, which can make the cooperation reach a more satisfactory level." Our modern refrigeration method and processing accuracy are not ideal, if the processing accuracy and refrigeration method can reach a certain level, the performance of the equipment can be improved. ”

But I really can't blame them, they really haven't seen any precision machine tools, and they often deal with backward products, and the accuracy is really not guaranteed. The equipment of the military industry is not very advanced, although the accuracy is good, but it is still more than ten years behind the world.

Seeing that everyone had no doubts, Li Zhao also stepped down and waited for the arrangement, but his heart was full of joy, he was originally entangled in those aspects that should be broken through first, but all of them broke through at once. Now there are clear solutions to several important obstacles restricting machine tools, and everyone is waiting for the leadership to arrange how to manufacture these equipment.

Seeing that everyone was looking at him, the leader was also a little embarrassed, and originally thought that the drawings should have some value, and the parameters on them were set so high that they might be able to provide some ideas for researchers, so this seminar did not set any goals.

Who knew that the seminar was just opened, and it was immediately out of his control, first the military industry found that several of Li Zhao's designs seemed to be very reliable, and said that they would immediately test it. I even think that Li Zhao's steps are too small, when has such a thing happened, which time I didn't try my best to press down the unreliable ideas of these technicians, and now it is directly reversed, and users feel that the producer is angry.

Then there is the discussion of machine tools, and the final result is that the metal formula provided by Li Zhao is used to produce metal, and the machine tool of the military industry is produced, and the assembly method provided by Li Zhao can be used to assemble the machine tool above. When is this research so simple, it has been a few years since the establishment of a machine tool production factory, and he has not come up with any advanced products, which Li Zhao can take out more than a dozen kinds, and it can be realized, and it has become an advanced product.

Not only that, looking at the current situation, this is a complete set of commonly used machine tools, as long as these enter the mass production stage, the national machine tool will completely get rid of the backward hat. And this is not only a problem of machine tools, which will lead to the upgrading of the entire industrial system.

To put it simply, with the improvement of machining accuracy, the production of products in the process of use, the fit of parts is better, and the wear and tear of parts will be reduced, which is still not to improve the quality of parts materials. If the material quality of the parts is also improved, the effect will be even better.

What's more, Li Zhao proposed a new assembly method, looking at the performance of everyone, this assembly method is very reliable. After using this assembly method, the equipment design can control the gap to a smaller level, which can significantly improve the assembly accuracy, reduce the vibration and energy consumption of the equipment, and greatly improve the service life.

If all of them are realized, then the basic industrial capacity can be said to be a big step forward, and the changes brought about by this step will be unimaginable. This is tantamount to breaking the technological blockade of the West, so that the basic industrial capacity reaches or even slightly exceeds the level of the West, as long as the amount is measured, it can quickly become an industrial power.

You see it right, that is, to become an industrial power, if these equipment can be mass-produced, enter all production links, and the quantity reaches a certain level, then it has entered the queue of industrial powers, even if it is very poor. Because these devices can basically raise the country's industrial capacity to the same level as Western countries.

The leadership is also a little difficult now, mainly because the investment this time will be very large, judging from the price of the electroslag remelting furnace that Li Zhao said, these projects are all put into development, so it will be an investment involving millions. In order for this electroslag remelting furnace to reach a relatively large scale, it may be necessary to increase the investment in the power plant, which is equivalent to rebuilding the power station specifically for this electroslag remelting furnace, which is a large investment, at least hundreds of thousands.

In addition, the electroslag remelting furnace itself, as well as various materials used in the test, also cost hundreds of thousands. According to the formula provided by Li Zhao, only a small part of the metals that have entered mass production are now required, which requires the addition of smelting plants for these precious metals, which may be hundreds of thousands.

This is not counting, according to Li Zhao's assembly requirements, it is definitely necessary to build a special assembly workshop, and this kind of large-scale refrigeration facility is also a big investment. After all these are calculated, the trial production of these machine tools will also be a lot of investment. After thinking about this, it is equally difficult for the leaders to do it, and they can only ask for further instructions, and in the end, these implementations can definitely only be carried out for joint research and development.

Thinking of this, the leader said: "After listening to everyone's discussion, I can basically determine the true meaning of these drawings, which will be the guarantee for our industrial capacity to reach a new level." But now everyone has a guess in their hearts, and this will be a multimillion, or even larger investment, so we must be cautious. ”

The leader is also considering the wording, this time the matter is a bit too big, he also needs to think about how to arrange it to be safe, now he can only set the name first, and then discuss and arrange the later things. After all, Li Zhao and the others only got some drawings in front of him, and no implementation plan was formed at all, but one thing is certain, a joint R&D team will definitely be established this time.

The leader continued: "This seminar for everyone to attend this time is very successful, allowing us to determine the authenticity and reliability of the drawings, and also roughly understand the difficulties of production, and we will set up a joint R&D team next." Since it is necessary to communicate with multiple parties to come up with a clear implementation plan, you will go back first, and we will discuss the specific implementation plan after communicating with all parties. ”

At the end of the seminar, all parties were very uneasy, and the leaders were shocked by Li Zhao, who originally thought that they could learn from all parties and see if new ideas could appear, but the result was indeed to provide new ideas, but it also blocked the way of others.

The experts and professors who came were also very uncalm, they had worked hard for so long, and the results were not as good as what others had come up with, the gap was too big, and there was a feeling of looking up at the mountains, which was basically equivalent to a dimensionality reduction blow. These people are still figuring out the basic structure, and here they directly take out their product design drawings after two or three generations.

Director Yang and Chief Engineer An were not calm, and they didn't have much hope at first, but they just wanted to ask for funds from the ministry to at least get the electroslag remelting furnace out. But I didn't expect that the most important project was handed over to others and turned into joint research and development, who doesn't know here, the drawings are out, it's just a trial production, and whoever gets the project can live a good life.

Li Zhao was also not calm, he thought that it would take several years of struggle to toss things out, but suddenly found that it was right in front of him, as long as he took a small step, he could achieve it immediately, and his excitement was beyond words.