readx;?“ This is the main control panel, and these boxes are used to select the objects to be inspected. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 infoAs you can see from the name, it includes several modules such as pre-launch self-test, charging, power-on refining, and thermal shutdown.

Before the vacuum electroslag remelting furnace was activated, we selected the self-test module, so as to enter the self-test monitoring screen, and through the precision detection instruments installed in the furnace, we can observe the key data such as the vacuum state, whether the travel switch is normal, the offset angle, and the reciprocating motion self-test of each moving part, so as to assist the operator to check the status of the vacuum electroslag remelting furnace.

This process is fully automated. The relevant data is solidified in the control chip, and the corresponding data will be transmitted back for each inspection item, and the corresponding data will be compared with the data in the chip to confirm that it is within the allowable error, and the word "test passed" will be displayed.

All data is detected and the device can be enabled, otherwise it will automatically lock to avoid damage to the device......"

The vacuum electroslag refining workshop has a large space, and the automatic main control room is set up in the left corner of the plant, with a size of more than 20 square meters.

At this time, the main control room was crowded with people in white coats, basically experts from China. As the masters, the teachers of the military sub-district colleges and universities had enough time to visit and study in the future, so they did not enter the main control room and occupied the already crowded space.

In order to accommodate as many people as possible, the experts offered not to put chairs for the operators except for them, they could just stand. Most of these experts wore thick myopic glasses, white coats, and each of them held a small book, even if it was an old expert with white hair, at this time, like a primary school student listening to a teacher's lecture, while listening to Guan Fei's detailed explanation, while making notes with a serious expression.

Many people also drew down the content displayed on the main control screen as a reference.

Although there were a lot of people, the room was orderly. Everyone was silent, even the cough was suppressed, for fear of affecting others. People who have questions about a certain place will also raise their hands first, and only after they have permission to ask their own questions.

The day before yesterday, after the completion of the entire installation project, a pre-hot test inspection was carried out. precision parts such as beams, columns, rollers, guide rails, etc.; travel limit switch; X-axis Y-axis control mechanism; mold linkage parts, gearbox, reducer, brake; The weight sensor, temperature sensor, potential sensor and other links of the equipment were finally comprehensively tested.

Today, it will be the day of the official heating trial operation of the vacuum electroslag remelting furnace, not only the earlier expert group, but also the delegation led by the Chinese Academy of Sciences. Due to the large number of people, even the spacious workshop could not accommodate it, and most people could only wait outside the factory.

For the first test flight, Guan Fei attached great importance to it.

No one has actually operated the vacuum electroslag remelting furnace even in China, and no one knows what will happen, let alone how to deal with it. So today, in addition to a few operators of the special alloy plant, he himself is also personally in battle.

Under his clear and concise instructions, several operators faced their respective control screens, calmly controlled, and successfully completed all the work of pre-use self-inspection, electrode installation and testing, and loading. At this time, it can be seen how high the degree of automation of the vacuum electroslag remelting furnace after Guan Fei's transformation is.

With the help of a large number of sensors, various data are aggregated and transmitted to the main console, which is clearly displayed in front of everyone. There is no need for a large number of technicians to rush to carry out various pre-launch inspections. The operator only needs to select the appropriate cursor on the keyboard, press the button, and the main control chip will do all the work, and then just wait for the data.

Although the operators are also a little afraid of making mistakes, it is clear that the equipment self-test has passed, and they have to compare it repeatedly with the operation manual, which delays a lot of time.

But even so, it didn't take more than ten minutes!

"It's too fast!"

"Yes, in the past, we needed dozens of people just to start the pre-launch self-test, and it took half a day and a day. But now just two or three people, press a few buttons on the main console to the computer, and everything is done, which is so convenient! ”

"It's just a little bit more invested. Their remelting furnace has a lot of sensors installed. Originally, the advantages of electroslag remelting furnace are simple equipment, low requirements for site, and low cost investment. But they first added a vacuum-sealed shell, and then installed so many sensors, the cost suddenly doubled two or three times, which is too uneconomical! ”

"You can't say that. Although the one-time investment is a bit larger, you can also see that after the degree of automation is improved, the labor intensity of technicians is also reduced, and the preparation time before activation is also shortened. In terms of cost-effectiveness, it's hard to say that it's a waste......"

Seeing the modified vacuum electroslag remelting furnace running so efficiently, the experts on the sidelines finally couldn't hold back and whispered about it.

"All the parameters are correct, it's time to power up!" On the right side of the console, a technician oozed fine beads of sweat on his forehead, and there were water stains on the places where his palms touched, obviously so nervous that his palms were sweaty, he raised his head and lowered his head, read the operation manual countless times, checked all the parameters, and finally opened his mouth in a tone that was half asking for instructions and half affirming, and raised his head to look at Guan Fei.

"Don't be nervous, are you sure the parameters are all right?" Guan Fei stood next to him and said calmly.

The technician was even more nervous when he asked this, thinking that he had read it wrong, and hurriedly compared it one by one: "There is indeed no problem." ”

"So what does the process say?" Guan Fei still didn't give an accurate answer, and asked rhetorically.

"In terms of process, we can start refining with electricity...... "The technician stammered, his voice a little weak, showing that he was still not very confident.

The onlookers let out a good-natured chuckle.

They could all see the nervousness of this young man, and it was no wonder who could be calm before the first operation of a multimillion-dollar piece of equipment.

What's more, in the eyes of old experts, he is still a child!

Guan Fei didn't laugh, but bent down slightly, supported the console with his left hand, put his right hand on his shoulder, and encouraged softly: "Since all the processes and parameters are in line with the manual, then just follow it." You are the operator, and the operation of the entire equipment is controlled by you, so when it is time to be decisive, be decisive. You didn't write the manual, even if something goes wrong, as long as you have no problem operating the process, it has nothing to do with you, understand? ”

"Yes!" The technician's heart was still pounding, but he was not so scared anymore and answered loudly.

"So what to do next according to the process?" Guan Fei repeated the question again.

"Power up!" As he spoke, the technician gritted his teeth and bravely pressed the power-on button under the gaze of a group of experts behind him who were holding their breath.

Swish!

As he pressed the button, everyone's eyes quickly turned to a large twenty-nine-inch screen above the console.

It was pitch black in the screen, and nothing could be seen. As the current turned on, it suddenly showed a dark red glow. After a second or two, the red light became stronger and more dazzling, and finally turned into a bright white, and it was completely impossible to see the picture above.

Whoa, whoa, whoa!

In the quiet main control room, there was a sudden burst of warm applause.

Electrified heating successful!

Science is like this, it starts by solving one problem after another, and finally ensuring the normal operation of the equipment. Even if today's test failed, as far as the project of electrified heating is concerned, achievements have been made and the reliability of this component has been proven.

It doesn't matter if you fail, just find the cause of failure and solve it step by step.

At least, for now, the first hurdle has been passed and phased results have been achieved, and all the experts can't help but applaud, and the main control room is filled with joy.

The vacuum electroslag remelting furnace has failed several times in China, but this is the first time it has succeeded - even if it is a partial success, everyone can't help but get excited.

This at least proves that it is not that the vacuum electroslag remelting furnace cannot be built in China, but that the previous direction is wrong.

Can't do it and can't do it, these are two different concepts.

If you can't do it, you really can't do it, no matter what you think, it's futile to try your best. But if you make a mistake, it just means that you haven't found a solution, and after improving your thinking and research direction, you may succeed.

Seeing that the first vacuum electroslag remelting furnace designed by the military sub-district and manufactured in China was successfully energized and melted steel, although it was still far from the final success, everyone was already excited and laughed, unable to help themselves.

There is the first, there is the second, there is the third......

It's a crucial step from scratch!

From now on, China has finally seen the dawn of breaking through the blockade of Western forces and having our own vacuum electroslag melting furnace, and many people can't help but burst into tears.

"It's dripping! Dripping! A sharp-eyed old expert suddenly pointed to another monitoring screen next to him, screaming and jumping like a child.

Rumble!

There was chaos in the main control room, and everyone wanted to squeeze to the front to watch.

"It's really dripping!"

I don't know who it was, but in a crying tone, he screamed.

"It's dripping!"

"Yes, dripping!"

……

"It's dripping!"

The sound was from front to back, from the main control room to the workshop, and from the workshop to the outside of the factory, and all the people were repeating the word "dripping"!

Although only a very small number of people saw the surveillance screen, and most of them only got the news from other people's mouths, it did not prevent them from smiling like a flower and passing on the good news to others. Hundreds, if not thousands, of people, all in the same voice, kept repeating:

"It's dripping!"

Many people were talking and laughing, and tears were streaming down their cheeks.

They finally looked forward to the day when their suffering would come to an end.

Because, dripping!

Vacuum electroslag remelting furnace is an upgraded version of electroslag remelting furnace, which is an out-of-furnace refining technology that originated in the 60s, developed in the 80s, and matured in the late 80s and early 90s.

The so-called electroslag remelting furnace, in simple terms, is to contact the self-consuming electrode with the slag, and after the electricity is applied, it generates high heat and melts the steel. When the molten steel penetrates through the slag layer, it is in close contact with the slag material, so as to remove the non-metallic impurities in the molten steel, and at the same time, remove the harmful impurities such as sulfur, lead, tin and other difficult to treat in the process of steel-slag reaction.

The ingots that have been remelted by electroslag are of very high purity.

In addition, the molten steel seeps out from the slag, drips into the water-cooled casting mold, gradually solidifies at the bottom, and evenly expands to the surrounding areas, which avoids the disadvantages of poor central growth that inevitably occurs in traditional melting and forging, and the metallographic structure is uniform and dense. When the ingot grows gradually, a thin layer of slag skin will be generated between the ingot and the mold wall, so that the surface of the ingot is very smooth.

These characteristics make the special alloy refined by electroslag remelting technology of excellent quality, which is very suitable for refining alloy structural steel, bearing steel, tool steel, ultra-high strength steel, precision alloy, corrosion-resistant alloy and other special alloy materials.

The vacuum electroslag remelting furnace in the military subdivision is a major improvement made on the basis of the ordinary electroslag remelting furnace.

Despite the fact that it only has a double-walled case, it is by no means an optional accessory!

Relevant domestic research has long found that the electroslag remelting furnace cannot be used for refining easily oxidized metals such as chin, wrong and aluminum because it is in an outdoor atmospheric environment. In addition, the production environment of electroslag remelting furnace has large dust and a large amount of fluorine gas, which is seriously polluted and poses a great harm to the health of operators.

After the military sub-district renovates it in vacuum, all kinds of dust and fluorine gas will be isolated and removed, which will play a great role in the health of technical personnel and environmental protection.

Of course, given the increased costs, it is debatable whether it is worth it for a country that does not pay much attention to the environment at the moment.

Another advantage of the vacuum protective cover is that the oxygen and other gases in the furnace are removed, making the ingot texture more pure, and metals such as chin, co, and aluminum, which could not be refined before, can also be refined in this way. Although there is no accurate data on the refined special aluminum alloy, according to laboratory research, its physical properties will also be greatly improved, which can make domestic production of better quality aviation aluminum alloy.

In view of the increase of two or three times the investment, whether it is necessary to transform the vacuum transformation of the domestic electroslag remelting furnace, the experts have launched a heated discussion.