In the future, when we look at the changes in the industrial age, we can see from the steelmaking furnace. A steelmaking furnace represents an era of productivity.

In the early days, blowing hot air at the bottom of iron and water was an era of steelmaking. After that, the fragmented upgrades would be covered with alkaline substances containing magnesium, turning acidic steel into alkaline steels was upgraded in this way. This was an era of steelmaking.

The second era of industrial steelmaking was the era of open furnaces. The steel was poured into the open furnace and heated with external heavy oil and gas. The four carbon, phosphorus, sulfur and silicon were removed step by step, and the slag and gas were removed, and the components were adjusted appropriately. In this era, the converter was blown on the side. This was the steelmaking technology after the founding of China. As for the construction technology of open furnaces, Ren Di was now asking to learn how to burn bricks. Before traveling, Ren Di would never have thought that bricks were actually building houses, involving the details of the success or failure of steelmaking.

Then the steelmaking method of young people appeared, with oxygen top blowing, and more advanced top blowing and bottom blowing. The open furnace consumed a lot of energy to make steel for several hours, and used this method to make one furnace for more than ten minutes. In addition, the impurities of nitrogen were removed.

In the third steelmaking era, it was obvious that this plane technology had not been achieved. The key reason was that oxygen-making equipment, compressed air separation method equipment was more difficult than the high-pressure-resistant reactor technology for synthesizing ammonia. Because once the synthetic ammonia is started, it will not reduce the pressure and continuously react with high pressure. If the compressed air machine is a device that continuously presses low-pressure air into high-pressure, it requires acetylene welding to reinforce key parts. It is obvious that the previous wave of time travelers lacked senior technicians in this field. This technology was impossible. The time travelers did not bring this machine at all, because even if they brought them early, there were not enough people to operate it. It was purely murder to operate it in the early stage.

Moreover, even if such a machine is completed, the requirements for the workers operating this machine are very high, because as long as they are in place step by step, the low temperature can freeze people into popsicles, or exceed pressure explosion. Oxygen is not a gasoline combustion, but high concentration of oxygen can turn steel into flammable substances. In chemical experiments, the red-hot iron wire placed in pure oxygen is the same as fireworks. The plane obviously has not focused on human resources on the upgrade of this dangerous technology. The second generation of the veterans no longer uses wrenches, they are all big entrepreneurs. The income of plantations and navigation trade is fast. Heavy industry is just a slow development under the support of national tax revenue. It is exhausted to use wrenches, sub-healthy to use wrenches, and there is danger to use wrenches. Everyone is equal, and veterans are more equal than others. No equal veterans are willing to suffer losses and be fools. The first generation of veterans who are passionate and passionate, ambitious to change the world have left this world.
Chapter completed!