After Mr. Jin Yuankun recognized Li Zhongxin in the sleeper, he seemed to be energetic all of a sudden.

Jin Yuankun always had the idea of ​​meeting Li Zhongxin, a legendary figure. He did not expect that he met Li Zhongxin himself while taking the train and had a very happy chat.

Jin Yuankun has feelings for China's automobile industry that ordinary people do not have. He always hopes to meet with Li Zhongxin and talk about automobiles.

Ran Hongtu said something to him, and he still clearly remembers that at this time, that is, the Chinese automobile industry wants to develop rapidly, and Li Zhongxin is a key figure. Zhongxin Company is rich and has injected a lot of funds into automobile research and development. From small parts of the car to the engine, there are basically special researchers.

Especially in terms of engines, Zhongxin Company has invested a lot. Zhongxin Company has invested even more in various advanced countries' machines and materials. Although it cannot be said that China's domestic engines will definitely be developed by Zhongxin's scientific research base, there is definitely such a possibility.

Jin Yuankun knew in his heart that in the past 100 years of the foreign industrial revolution, those developed countries have been ahead. In this way, every process, every ingredient, and every detail of the automobile engine needs to be accumulated bit by bit, and it comes from constant failure and slow success.

No matter what kind of advanced technology you have developed, you need to constantly study it. You must go through countless failures to succeed. If you want to truly have your own technology, there is no shortcut. You must accept countless failures and willingly accept it.

In China, it takes countless scientific researchers to develop an engine that truly belongs to Chinese technology to develop it after many years of research and development.

Developed countries abroad have always boasted about the saying that science is shared, transparent and open.

But engineering is confidential and private, and it does not mean that anyone who wants to make it public is able to make it public. Not only engineering, but many other scientific research results are the same.

In Jin Yuankun, the principle of the engine can be said to be very simple, and this principle has never changed in the more than 200 years of internal combustion engine existence. To put it bluntly, it is nothing more than fuel combustion, gas expansion, and pushing the piston to do work.

But it is easier said than done. Except for those developed countries, other countries have no automobile engine manufacturers at this time.

How to increase the power, reduce the weight, extend the lifespan, and improve efficiency can be said to be an endless long march.

Everyone can make engines, but for the same engine, there is no way to compare with the engines of developed countries in terms of power, and there is no way to compare the weight of developed countries, and there is no way to compare the service life and stability with developed countries.

Therefore, the research and production of engines is definitely a very difficult thing in China.

Ran Hongtu said that Zhongxin Company can withstand failure and invest a lot of money to do this. Not only has the top engine researchers in China been poached by Zhongxin Scientific Research Base, but some scientific researchers have also poached abroad. The investment in this area is quite strong. Since the establishment of this department, the amount of money spent in has exceeded 100 million yuan.

Not to mention, at this time, there were very few companies in China's scientific research bases that could spend so much money to focus on doing something. They were mainly makers. These people believe that even if China's engines were researched, there was a big gap with foreign engines. This gap could not be caught up in a few years.

Therefore, they would rather have a joint venture with foreign car companies and directly use advanced foreign engines and parts made by foreigners than consider taking out their own money to study this aspect.

Although this cannot be said to be all, it represents the ideas of most Chinese automakers at this time.

The most difficult part of the engine is the main cylinder, which is mostly made of metal casting, and the process is also divided into high-pressure casting and low-pressure casting.

At this time, China's casting technology still had a certain gap with foreign countries. The casting technology basically followed some ancient operations, and there were very few modern high-tech things.

After the metal enters the mold, residual stress, exhaust gas, release agent spraying, etc. during the cooling and solidification process leads to defects. The defect reduces the yield rate and seriously affects the lifespan, because metal fatigue is most afraid of defects.

This is a relatively big reason. In addition, the quality requirements of metal materials themselves are also extremely high, generally cast iron or cast aluminum. Our domestic technology for high-quality casting raw materials is still very backward.

Although China has made scientific and technological innovations and made many improvements and improvements in this regard, it still has a considerable gap with foreign countries.

Materials used in aerospace technology are all national confidential things. Ordinary enterprises cannot obtain such technology and materials. They are only suitable for small-scale scientific research, and large-scale output is quite difficult.

The other ones are die-casting molds and die-casting machines. At this time, the world's top machines were in Japan and Germany, followed by Italy, and then others.

The mold must be precise, durable, and adapt to automatic production. It cannot be said that after a few molds are cast, they will be broken or leaked, or they may only be able to manually watch and grasp the heat.

In China, general enterprises are intensive enterprises, and basically old employees lead new employees. The older generation always has the idea of ​​teaching their apprentices to starve their masters to death. Some good skills and experiences are often not taught to their apprentices until they die, which also restricts the development of many aspects of China.

For example, Zhongxin Company can buy high-quality lathes, grinders, boring machines, etc., but it is a problem to be able to use such high-quality lathes, grinders, etc.

Moreover, there is a problem that the engine produced in this way needs to be produced in large quantities and cannot be restricted by these things.

The piston must move back and forth tens of millions of times in the cylinder bore, and the error requirements are extremely high. The wall surface processing requires a process called honing, which ensures wear resistance on the surface of the cylinder bore and can also attach a layer of oil film to ensure sealing performance.
Chapter completed!