Countercurrent 1982

Chapter 281

Since many workpiece gear systems installed by Duan Yun are inside the machine, and Duan Yun's wiring has just begun to be installed and connected, Cheng Changlin still cannot fully understand the entire design principle of Duan Yun's modification plan.

"I made this circuit myself." Duan Yun replied.

"Let me see." Cheng Changlin said.

"Here." Upon hearing this, Duan Yun handed the circuit board to Cheng Changlin.

"It's interesting." After seeing the circuit board Duan Yun handed over, Cheng Changlin observed it carefully, and then asked, "Did you really make this board by hand?"

Cheng Changlin's strength is mechanical. He only knows about strong current circuits. He doesn't know much about weak current radio circuits. He only knows some simple diode and triode circuits.

In Cheng Changlin's view, electronic technology is a very difficult technology to learn. If you want to become a master who can independently produce and design circuits, you need to have strong logic and original ability.

For a while, Cheng Changlin also planned to learn electronic technology by himself, but because he was already middle-aged, his memory and thinking had declined a lot compared to when he was young, so he finally had to give up.

"Yeah." Duan Yun nodded after hearing the words, and continued: "I usually come to the factory to repair electrical appliances occasionally to earn some money, and rent a small room in the factory area. The circuit boards are etched and welded in the rented house."

"Then the speaker you gave Qingyan was really handmade by you!?" Cheng Changlin suddenly remembered the two speakers that his daughter brought home.

Up to now, Cheng Changlin still likes these two small speakers. Now every night when he returns home, he will sit leisurely on the sofa and listen to songs for a while.

Cheng Changlin also opened the back cover of the speaker and found that there was a circuit board that looked very complicated inside. Bought, not designed and made by himself.

But now Cheng Changlin suddenly discovered that the speaker might really be handmade by Duan Yun himself, which shows that Duan Yun not only has mechanical skills, but also seems to be an expert in electronics!
Knowing about machinery, being able to speak English, and being an expert in electronic technology, Cheng Changlin felt that Duan Yun was not easy!
"Well, I did it myself when I had nothing to do." Duan Yun replied.

"Where did you get this chip?" Cheng Changlin asked in surprise when he saw the chip in the middle of Duan Yun's circuit board.

"I bought it from a stall in the radio enthusiast's home in Sipailou. I bought it for a few months. This time, the modified gear hobbing machine just happened to be used." Duan Yun said casually.

"Do you know how to use this chip?" Cheng Changlin asked.

"Know a little..." Duan Yun said modestly.

"You can use this chip to make a CNC gear hobbing machine if you know a little bit of superficial knowledge?" Cheng Changlin asked dubiously.

Cheng Changlin absolutely does not believe that Duan Yun's level can reach the level of using chips. According to Cheng Changlin's understanding, modern CNC machine tools in foreign countries do need chips, but these chips are not available in China, even if there are occasional domestic chips. , the output is low, the quality is poor, and the price is astonishingly expensive. There are not many talents who can design chip circuits in China, so if Duan Yun can design chip circuits, Cheng Changlin absolutely does not believe it!

"I know a little about the function of this chip..."

"You dare to install it on the machine and test it before you have a thorough understanding of this technology? What if there is an accident? Are you too courageous?" Cheng Changlin frowned and said loudly to Duan Yun.

Cheng Changlin didn't deliberately find fault with Duan Yun this time, but really felt that Duan Yun's actions this time were unreliable.

In technical design, it is absolutely impossible to have a half-knowledge about the performance and use of components. The technical transformation made in this way is prone to problems, and this time it is still expensive equipment in the factory. Once an accident occurs, the consequences will be very serious!
"It should be fine." Duan Yun said with a slight smile.

"With your high-tech attitude, you will suffer a lot sooner or later!" Cheng Changlin put the circuit board on the tool cabinet, said a word, turned his head and left with a straight face.

In fact, Cheng Changlin came here today with the intention of giving advice to Duan Yun, but seeing Duan Yun's attitude towards modification is so perfunctory, and he doesn't understand the technology of electronic chips, so he can only leave.

Obviously, from Cheng Changlin's point of view, Duan Yun's technical modification is very unreliable. As for his claim yesterday that he would convert it into a CNC gear hobbing machine, looking at it now, it is a joke!

As for Duan Yun at this time, he didn't care about Cheng Changlin's opinion of him at all, after all, he was still very confident in this technical transformation plan.

Not long after Cheng Changlin left, the factory directors Qin Gang and Cheng Qingyan, as well as some technicians from the technical department, also came to the workshop. Wang Qiang, who had finished the morning meeting, saw Qin Gang appear and walked over quickly.

"Xiao Duan, how is the modification of the machine going?" Qin Gang asked with a smile when he saw Duan Yun kneeling under the machine with his ass up and installing the wiring.

"Ah, Factory Manager Qin is here." Duan Yun stood up from the ground upon hearing this, and said to Qin Gang: "The only thing left is to install the electrical circuit, which should be completed this afternoon."

"Very good." Qin Gang nodded when he heard the words, then pulled Duan Yun aside, and asked Duan Yun in a low voice, "Can you guarantee the success of the experiment?"

"Testing this kind of thing can't be [-]% successful, but I'm still sure." Duan Yun said.

"Even if it fails, you must try your best to ensure the safety of personnel and equipment. This is the only request I have from you!" Qin Gang said seriously.

Qin Gang and Zhao Dongsheng obviously have the same work style, and safety is always the first priority. Even if there is no credit, if you don’t make mistakes, you can say anything. Besides, Duan Yun’s technical reform was approved by Qin Gang. Take the main responsibility!
As for how much Duan Yun's modification can improve production efficiency, it doesn't matter to Qin Gang, and he also met Cheng Changlin in the office building just now, and he learned that Duan Yun's technical modification may be unreliable, so Worried about an accident, he came to the workshop.

"I installed a circuit protection system on the machine, so it should be fine."

"That's good!" Qin Gang heard the words, and then his face relaxed, and asked after a while: "Can you finish the installation before you get off work this afternoon?"

"Yes!" Duan Yun said simply.

"En." Qin Gang nodded, turned around and said to the workshop director Wang Qiang who was following him, "Is there any new processing task in the workshop recently?"

"Recently, a new batch of gear processing orders has come in, more than 300. The gear blanks have been processed, and the milling machine is needed. It is estimated that a few masters in the day shift of the workshop can finish processing in a week..." Wang Qiang said.

"Let the machine modified by Duan Yun process this batch of semi-finished products!" Qin Gang settled down.

(End of this chapter)