Chapter 518
Molten steel pouring is only one stage of the entire beam casting process. After the pouring is completed, the beam needs to be buried in a sand box for a long period of cooling, until the surface temperature drops to about 300 degrees, and then the mold cleaning begins.

The cleaning work was arduous. Dozens of workers braved the high temperature and carefully lifted the cover of the sand box, and shoveled away the sand with shovels to reveal the castings hidden inside.At the beginning, in order to fix the sand core in the middle, the molders used a lot of steel bars. Now, the cleaners have to use gas cutting guns to cut off and pry apart these steel bars one by one, and then clean the sand in the middle of the casting. .

After half a month of hard work, the sand mold was finally dismantled.Workers drove several large cranes to hoist more than 300 tons of castings onto battery transport vehicles, and then transported them to a specially built heat treatment furnace for five days and nights of normalizing treatment to make them meet the design requirements. expected performance requirements.

The next step is to machine the beam.This workpiece of hundreds of tons is much larger and heavier than all machine tools, and no machine tool can hold such a workpiece.Of course, there is also a way to solve the problem, that is to let the machine tool revolve around the workpiece.At the most tense time, several machine tools were running at the same time in several directions of the beam, boring, tapping, and grinding, just like a scene of ants gnawing bones.

Just a single beam caused hundreds of people from a dozen different types of work to toss for several months.In addition, there are a series of work such as the laying of the foundation, the installation of the columns, and the lifting of the beams. Needless to say, the hardships involved.After the installation of each large-scale structural part, the workers began to install the mechanical system, hydraulic system and electrical system, which is equivalent to installing muscles, blood vessels and nerves on the hydraulic machine, and giving it life.

This reflects the advantages of Hanhua Heavy Industry as a large-scale equipment manufacturing enterprise.After more than ten years of development, Hanhua now has a large number of talents in all aspects, and there are hundreds of senior technicians alone. It can be said that no matter what process, Hanhua can organize elite troops. There will be a team of workers and technicians.

From the initial project approval to the hydraulic press standing majestically at the head of Xunyangzhou on the south bank of the Yangtze River, one year passed without knowing it, and Hanhua finally ushered in the celebration of the thermal load test run of the hydraulic press.

As early as a year ago, He Haifeng told Lin Zhenhua that this 1.5-ton hydraulic press is not only the property of Hanhua, but also the equipment of the entire country.On the day of the test drive, hundreds of people, including representatives from several major ministries and commissions and hundreds of equipment companies in China, came and crowded the entire test drive site.

Executives such as Lin Zhenhua and Xiang Zhe all came to the scene. In such a grand celebration, they should accompany every guest who came to congratulate.

"Comrade Zhenhua, you, Hanhua Heavy Industries, have done a great thing that benefits the country and the people! It can be said that the benefits are in the present age, and the merits will be in the future." Naturally, the leaders of the ministries and commissions in high positions spoke like this. .

"Mr. Lin, compared with your 1.5-ton hydraulic press, our hydraulic press is old, weak, sick and disabled. How about it, your experience in building hydraulic presses cannot be kept secret." This is from Shangzhong, Yizhong And Erzhong's colleagues, their eyes are full of jealousy, and they can't wait to go back and report to their superiors, asking them to build the same or even larger hydraulic presses.

"Mr. Lin, our two companies have been cooperating very well. In the future, if I have any big pieces to forge, Mr. Lin should give priority to arrange them." Those who say this belong to themselves who do not have a hydraulic machine and are counting on the future. A company that borrowed Hanhua's hydraulic presses to make large forgings.

Among all the guests, there are a few very special ones, among them is Lin Zhenhua's previous mentor, Professor Yao Heliang from the Mechanical Engineering Department of Huaqing University.

"It's really outstanding!" Yao Heliang walked around the hydraulic machine several times. With his professional level, he can naturally see that this hydraulic machine is unique in terms of automation level, precision, and reliability.He told Lin Zhenhua: "Xiao Lin, you must sort out the experience you have formed during the construction process and the problems you have encountered, and give us a copy. These practical experiences and data are very precious. wealth."

"Ms. Yao, don't worry. We have complete files for all these materials. We can provide them whenever you want, Mr. Yao." Lin Zhenhua held the old man's arm and said affectionately.

"Xiao Lin, I read you right. When you sent your sister to Huaqing to report, your company only had a hundred and ten people. You survived by making some iron art for others? It's only been more than ten years. Just in time, a world-class 1.5-ton hydraulic press actually came out of your hands, it’s amazing!" Yao Heliang praised Lin Zhenhua by patting Lin Zhenhua's hand.

"This is also thanks to the talents cultivated by Mr. Yao." Lin Zhenhua hurriedly said modestly, "In Hanhua Heavy Industries, we Huaqing graduates have the most students, and they are the leaders in every position. "

Gu Jiahua, the new general manager of Xingbei Heavy Machinery, also came. After he took office, he adopted a policy of close cooperation with Hanhua Heavy Industry, and sent a group of engineers and technicians, including Zhang Yuquan, to assist Lin Zhenhua in the construction of the hydraulic press. Well, in today's ceremony, he also felt like a hero.After seeing the appearance of the hydraulic press, Gu Jiahua smiled and said to Lin Zhenhua:

"Xiao Lin, your merits and virtues are consummated! You have come up with such a big thing, which makes me jealous when I look at it."
Lin Zhenhua hurriedly handed Yao Heliang over to Liu Zhaohua to take care of him. He took two quick steps and came to Gu Jiahua. While shaking hands with him, he said, "What did Mr. Gu say? If there is no strong support from Mr. Gu, only our Han For the Hua family, it may be difficult to overcome so many technical difficulties."

"No, no, I knew when I was in the Ministry of Petroleum that there is nothing difficult for Xiao Lin." Gu Jiahua said.

"Ashamed, ashamed. In front of a big brother like Xingbei Heavy Machinery, we will always be just recruits."

"A newborn calf is not afraid of tigers, but a youngster is fearful. Those of us who are big brothers are really lagging behind."

"President Gu, you're being polite. If you have any large forgings in the future, feel free to bring them over. As for the processing fee, I'm in charge. I'll give you a [-]% discount."

"Hahahaha, Xiao Lin is really shrewd. I thought that with the friendship between the two of us, you could just waive the fee for us. After a long time of trouble, it's only [-]% off."

"Uh, we have small profits, so it's really difficult to waive the fee. Mr. Gu also knows that once the hydraulic machine is turned on, the electricity and water bills are not a small amount. Also, the cost of daily maintenance is not small. low, so..."

Amidst the giggling greetings, it was time for the test drive.Liu Zhaohua waved a small red flag, and all the guests retreated beyond the safety line, holding their breath, waiting to watch the test drive scene.

A large crane hoisted a large forging over 100 tons in front of the hydraulic press, and the automatic forging manipulator stretched out its calipers, clamped the forging, and sent it under the forging hammer of the hydraulic press.The worker in the control room pressed the button, and the forging hammer of the hydraulic press crashed down with tremendous force.The black oxide skin on the forging suddenly fell off, exposing the red iron core, which was constantly changing its shape like a soft dough under huge pressure. In a few moments, a large spindle was formed.

"Wow!" Enthusiastic applause rang out in the newly completed hydraulic press workshop, and everyone couldn't help but slap their hands so painfully.Everyone is an industrial person, and they all know how such equipment can improve the industrial level of the entire country.

The forging was hoisted away by the crane, and the hydraulic machine returned to calm. Like a swordsman who has just displayed extraordinary skills, he stood upright calmly, accepting the admiration of everyone.

Hanhua staff had already set up a simple platform in the spacious part of the workshop, and He Haifeng, who came here to congratulate him, boarded the platform accompanied by Lin Zhenhua.He first read the congratulatory letter from the leaders of the State Council, expressing his high affirmation to Hanhua Heavy Industry for successfully building the 1.5-ton hydraulic press.Later, on behalf of the State Planning Commission, he put forward further requirements for Hanhua, which were nothing more than making persistent efforts and bravely climbing the peak.Like this, He Haifeng has said it countless times everywhere, and it is really a coincidence.

The rest of the ceremony is also the same, the guests congratulate, the host expresses his thanks, firecrackers are set off, and then everyone goes to the banquet held by Hanhua, etc., so there is no need to repeat them.

"Xiao Lin, you have finally built the [-]-ton hydraulic press. What are your plans for the next step?" After the whole celebration, He Haifeng came to Lin Zhenhua's office and talked with Lin Zhenhua.

Lin Zhenhua replied: "Yes, we are asking Huaqing University to design an 8-ton die forging machine for us. This is the key equipment for us to manufacture large gas turbines. According to the common practice abroad, the blades of gas turbines are all made of large die forging machines. Forged and pressed, we can't get around this hurdle."

"Your heart is really big." He Haifeng sighed, "According to your development speed, you will soon become one of the top heavy industry groups in China."

"Being number one or number two in China is not our goal." Lin Zhenhua laughed. "Our goal is to be number one or number two internationally."

He Haifeng said: "Don't be so ambitious, the international heavy industry giants are still very strong. I heard that you have been competing with Japan's Saihu Company for the market recently. How is the current situation? To be honest, I have been working on behalf of You are sweating, Xihu Company is not a paper tiger, it will bite when the bayonet is really going to be popular."

Lin Zhenhua sneered and said, "Tigers sometimes fall into Pingyang. According to our observations, Xihu Company is about to face a huge crisis."

(End of this chapter)

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