The Rise of Heavy Industry 1980

"What do you mean?" Gao Jun didn't understand.

"It's very simple, as long as you give me that twin-axis machine, I can get you two more!" Wang Chaoyang repeated.

Gao Jun was even more confused, there is only one of this kind of Greenlev twin-shaft lathes in the entire Nanyang City, how can there be two more units?"

"Uncle Gao, tell me first, what is the main role of this twin-axis machine tool in your factory?" Wang Chaoyang did not rush to explain, but asked rhetorically.

"The main role is the through-hole machining of hydraulic valves. Gao Jun didn't want to reveal too much information.

Wang Chaoyang smiled slightly: "The hydraulic valve you said is also an order for Changhai Agricultural Machinery, specifically the valve body of the directional valve, the tolerance of the through hole of this valve body is required to be within 0.03 mm, and the ordinary drilling machine can only reach 0.05 mm, so you need to use this twin-shaft lathe, am I right?"

Gao Jun twitched unnaturally in the corner of his eyes, and secretly scolded the chicken thief in his heart, this kid really came prepared, and the matter was investigated so clearly.

But since it was said, Gao Jun no longer hidden: "You are right, the role of the twin-shaft lathe in our second factory is very great, I can't let it go to you!" Wang

Chaoyang said: "What if I let your ordinary drilling machine reach an accuracy of 0.03 mm

?" Gao Jun's eyes opened and said: "How is this possible?"

Wang Chaoyang said: "What is impossible? Although it is a fact that the accuracy of domestic machine tools is not high, the nominal accuracy is also within 0.03.

Gao Jun shook his head when he heard this: "Nominal accuracy and actual accuracy are two different things, nominal accuracy is the number written on the manual, which is actually difficult to achieve! Big nephew, you are still too inexperienced, if this is what you think, then I advise you to stop......

" Wang Chaoyang said: "How do you know if you don't try? Take me

to the workshop!" Gao Jun thought about it, and still agreed to take Wang Chaoyang to the workshop, but he did not agree with Wang Chaoyang's idea. The nominal accuracy of domestic machine tools is indeed less than 0.03 mm, but it is difficult to achieve practical processing at the purely theoretical level, which is almost a consensus in the machine tool industry.

Nanyang Machinery No. 2 Factory has a strong state-owned enterprise style, the workshop pattern is particularly large, twice the size of the Red Star Factory, and there are many equipment distributed in the workshop, but most of the equipment has a thick layer of dust.

Gao Jun's old face flushed when he passed through these equipment, he said earlier that the benefits of the second factory were very good, but in fact, it was a lie, and these dusty equipment was proof, but fortunately, Wang Chaoyang didn't ask much.

Coming to the lathe area, 12 lathes produced in 74 years are lined up in two rows, and the words "Shenyang No. 1 Machine Tool Factory" are vaguely seen on the dilapidated nameplate.

As a major strategy at the national level, machine tool production is the focus established during the "First Five-Year Plan" period. At that time, it supported 18 backbone enterprises across the country, known as the "Eighteen Arhats", which was the basis for the brilliant achievements of the early days of the Republic, and the famous Shenyang No. 1 Machine Tool Factory was among them.

The derivative products of this machine tool, even in the later generations where Wang Chaoyang is still active in the workshops of some processing private enterprises, but these first-generation machines can only be seen in museums.

So when he saw this scene, Wang Chaoyang couldn't help but sigh for a while, but then he approached the machine tool and began to study it seriously.

The principle of this machine is very simple...... At least in Wang Chaoyang's eyes, the three-phase motor provides power, the belt transmits the speed and torque to the input shaft of the gearbox, and the output shaft is connected with the main shaft of the machine tool to provide processing power.

The main structure that affects the machining accuracy includes the output shaft of the gearbox, the toothing structure of the output shaft, and the slide rail mechanism of the entire tool holder. If you want to improve machining accuracy, you need to start with the above points.

When Wang Chaoyang was studying machine tools, Gao Jun was observing Wang Chaoyang.

Before entering the workshop, he felt that Wang Chaoyang was a clever and eloquent slipper, but after entering the workshop, he seemed to have changed as a person, and the aura of the whole person had changed, and that kind of concentration was by no means something that ordinary young people could have.

Originally, I thought that the idea of improving the accuracy of the machine tool was a fantasy, but seeing Wang Chaoyang in this state, Gao Jun had a glimmer of hope in his heart, and the young man in front of him really had a way, and that helped him a lot!

Fifteen minutes later, Wang Chaoyang retracted his gaze and turned to Gao Jun and said: "Although the machine tool has some years, the foundation is there, and the accuracy can be improved to 0.03 mm."

Gao Jun's heart pounded suddenly: "How to improve?"

Wang Chaoyang said: "Felt paper, cleaning liquid, grease, and then call two maintenance masters, it can be completed in about half an hour."

Gao Jun didn't ask any more, and immediately went to the maintenance class to find two masters, a large stack of felt paper, a jar of grease, and a large bucket of cleaning liquid.

According to Wang Chaoyang's instructions, the two maintenance masters first wiped off the floating ash and oil film of the main transmission mechanism of the machine tool with felt paper, and then rinsed it with cleaning liquid. Among them, the spline shaft of the turret slide rail and the output shaft needs to be disassembled before it can be cleaned, which is more time-consuming. The maintenance master wanted to save trouble and clean it in the assembled state, but Wang Chaoyang did not agree, on the grounds that the cleaning method was not thorough.

After the cleaning, they needed to apply grease, but just as the two masters were about to start, Wang Chaoyang stopped them.

"What is the type of grease, why is there no packaging?" Wang Chaoyang asked.

"Bulk grease, miscellaneous brands, no packaging, does it matter?" Gao Jun replied, grease is a consumable, there are brands of grease are expensive, but miscellaneous brands are very cheap, in order to reduce costs, they have been using miscellaneous grease, and there has been no major problem.

"It's a big problem!" Wang Chaoyang frowned, and came to the spindle spline and said, "Look carefully at the tooth surface of the spline, there are some subtle spots on it, I can't understand what is going on, but now it seems that the problem is in the miscellaneous grease."

Gao Jun also noticed the spots on the tooth surface and asked: "You mean that

grease will corrode gears, which is unlikely, right?" Wang Chaoyang said: "Grease will not corrode gears, but if the grease contains halogen elements, it will induce electrochemical corrosion on the tooth surface...... "Halogen elements? Electrochemical corrosion

?" Gao Jun was confused: "What do you mean?"

Wang Chaoyang had to say simply: " It's that the grease contains an element that can induce tooth rust, and if I'm guessing correctly, it should be clearly stated in the machine's manual. Can you still

find the user manual?" Gao Jun immediately instructed the maintenance master to find it, the purchase time of this batch of machine tools is very long, and the user manual has long been missing, but the similar model can be found.

After getting the manual, Gao Jun took a spit and immediately rummaged through it, and finally found the model selection method of grease in the "Maintenance and Repair" chapter, which clearly stated that it was strictly forbidden to use grease containing halogen elements.