Siheyuan: I am different He Yuzhu

After 8 months of continuous attempts and efforts, with the valuable experience accumulated by Red Star Machinery Manufacturing Plant in producing diesel heating stoves, the car air conditioning workshop of Red Star Machinery Manufacturing Plant finally successfully produced the large reciprocating compressor required for oxygen production! This is a major breakthrough! You know, the air compressors they used in the urea synthesis experiment were all imported from Russia, and the air compressors used by the urea synthesis plants that were put into operation across the country also relied on imports. But now, Red Star Machinery Manufacturing Plant can finally produce its own large air compressors independently!

As soon as the problem of large air compressors was solved, He Yuzhu could not wait to come to Director Yang's office and excitedly reported to him: "Director Yang, our Red Star Machinery Manufacturing Plant has successfully produced a large air compressor that can produce oxygen! Next, I would like to propose the construction of a large oxygen station to try to use oxygen blowing for steelmaking!"

After hearing this, Director Yang was so excited that he almost jumped up. He knew the importance of this technology. If oxygen blowing steelmaking could be realized, it would greatly improve the quality and output of steel, and would have immeasurable significance for the country's industrial development! So he immediately approved He Yuzhu's suggestion and expressed his full support for the development of this work.

In the following days, all the staff of Red Star Steel Plant worked together and devoted themselves to the construction of the oxygen station. They worked overtime and fought day and night just to complete this historic oxygen station as soon as possible. Only after solving the oxygen supply problem can we start to try oxygen blowing steelmaking technology. You know, there is no oxygen top blowing converter in China at present! He Yuzhu's goal is to build the first oxygen top blowing converter in China at Red Star Steel Plant.

When it came to November 1960, after completing the construction of the oxygen station, Red Star Steel Plant also completed the construction of a 11-ton oxygen top-blown converter and officially launched the research on oxygen top-blown converter steelmaking technology. After two months of repeated attempts, Red Star Steel Plant finally mastered all the technical difficulties of oxygen top-blown converter steelmaking and won the title of the first oxygen top-blown converter in China.

While the Red Star Iron and Steel Plant was working on the oxygen top-blown converter technology, the technicians of the Red Star Machinery Manufacturing Plant were also stepping up the production of the parts of the 1960-ton die forging machine. Finally, on December 12, 13, the Red Star Machinery Manufacturing Plant completed the production of all the parts of the 10-ton die forging machine and began the overall installation of the -ton die forging machine. After the final assembly was completed, with the assistance of the Sijiucheng Shuimu University and the Mechanical Science Research Institute of the First Industrial Machinery Department, a detailed "physical examination" - stress measurement test - was carried out on this "giant" with a height of more than meters and a weight of more than tons. Only after the "physical examination" is completed can the overload test be carried out. Only after passing the overload test can the successful development of the -ton die forging machine be determined.

It took three months for Huaqing University and the Mechanical Science Research Institute of the First Industrial Machinery Department to finally complete the stress measurement test of the 6000-ton die forging machine, and then began the overload test. Under the command of the project commander He Yuzhu, the high-pressure water pump made a buzzing sound, and the pointer of the pressure gauge slowly rose: 9000 tons, normal; 1.5 tons, normal; tons, good; tons, no problem. When the pointer of the pressure gauge stayed at tons, the -ton die forging machine was intact. Amid the cheers of the people, the first -ton hot die forging press was successfully built.

In that special era, the Red Star Machinery Manufacturing Plant made a major breakthrough on December 1960, 12 - it successfully manufactured the first 13-ton hot die forging press in Rabbit Country! This milestone achievement made the whole country excited. Although the pressure tonnage of this 1.5-ton hot die forging press is larger than the 1.5-ton free forging hydraulic press being developed by the Jiangnan Shipyard in Magic City, in fact, from the manufacturing difficulty point of view, the 1.2-ton hot die forging press is lower than the 1.5-ton free forging hydraulic press being manufactured in Magic City. Therefore, the Red Star Machinery Manufacturing Plant was able to successfully manufacture the 1.2-ton free forging hydraulic press in Magic City first. This not only demonstrated their technical strength and innovation capabilities, but also injected new vitality into the industrial development of Rabbit Country.

The successful manufacture of this 1.5-ton hot die forging press is like a bright dawn, illuminating the road ahead for the Red Star Machinery Manufacturing Plant and clearing the way for them to manufacture higher-performance six-cylinder engines. Its appearance enables the Red Star Machinery Manufacturing Plant to manufacture more powerful and efficient six-cylinder engines. The six-turn crankshaft forged by this 1.5-ton hot die forging press can be assembled on a higher-horsepower six-cylinder engine, thereby improving the performance and reliability of the engine. From then on, the heavy-duty truck engines produced by the Red Star Machinery Manufacturing Plant will no longer have the problem of insufficient life due to the insufficient strength of the six-turn crankshaft. This problem has been completely solved, bringing new development opportunities to the Red Star Machinery Manufacturing Plant.

When designing the 1.5-ton hot die forging press of Hongxing Machinery Manufacturing Plant, the same cylinder design scheme as the 1.2-ton hydraulic press of Shanghai Jiangnan Shipyard was adopted. The main cylinder structure of the die forging press is to replace a large main cylinder with 6 sub-cylinders. This design not only allows the die forging press to generate several different pressures, but also reduces the difficulty of the manufacturing process. If a large main cylinder is used to generate tons of pressure, a large cylinder with a diameter of about 2.75 meters is required. For such a large cylinder, it is necessary to bear such a large pressure, which is not only very difficult in manufacturing technology, but also difficult to meet the requirements with the existing material strength in China. With six sub-cylinders, each sub-cylinder plunger only needs to generate 2500 tons of pressure. For such requirements, only a cylinder with a diameter of 1.13 meters is needed, which solves the difficulty of manufacturing the cylinder and reduces the requirements for material strength. Thumbs up for the designers of the -ton hydraulic press of Shanghai Jiangnan Shipyard!