You should know that the problem of product quenching spots has plagued Xiangyang Machinery Factory for a long time.

After Ning Xiaohong became the head of the technical department, he also organized everyone to brainstorm and thought of many ways to overcome this problem, but it has been very effective.

It can be said that this problem has become a heart disease between Liao Jingsheng and Ning Xiaohong. Now that Zhao Guoyang can tell it in one sentence, he has come up with a solution, how can they not be surprised?

However, Ning Xiaohong, who has a temper with Xiao Lajiao, is not that easy to surrender.

She thought for a while, raised her neck and said to Zhao Guoyang, "Comrade Zhao Guoyang, has the method you just mentioned been proven by practice? Can you 100% guarantee that if you do not use pure water as the quenching liquid, you can definitely solve this problem?"

Zhao Guoyang pointed at the other side of the furnace and said, "To prove it, that's not simple. Isn't there a part waiting to be quenched? You can try it now."

"Of course, I have another small suggestion, which is to use tap water, at least one day, otherwise the alkaline ions in the water can easily neutralize some useful elements in the workpiece."

When Ning Xiaohong heard this, she turned red. She actually knew this question and had explained it to the workers below.

Just now she went over to talk to the two workers and wanted to ask them why they used tap water directly.

The worker's reply to Ning Xiaohong was that he was not prepared enough yesterday and the tap water placed overnight had been used up.

Ning Xiaohong thought that the problem was not big, so she did not arrange for them to continue adding water.

Who would have thought that Zhao Guoyang also saw this small detail and raised it at this time. At this moment, the technical department chief was a little overwhelmed.

However, Ning Xiaohong also heard from Zhao Guoyang's words that this guy was really not bragging and was really proficient in the process of quenching, otherwise it would be impossible to make so many suggestions.

Next, Ning Xiaohong's only doubt was whether the problem of quenching spots can be solved according to Zhao Guoyang's method.

Seeing that Ning Xiaohong was silent, Liao Jingsheng thought she was a little embarrassed, so he personally ordered the two workers to suspend the quenching of the next workpiece.

"Comrade Zhao, I wonder what the additives you are talking about? Can we find them now?" Feeling Zhao Guoyang's extraordinaryness, Liao Jingsheng was much more polite when he spoke to him.

"Don't worry, your workshop has it now!" Zhao Guoyang pointed to a container in the distance and spoke slowly.

"Director Liao, if I admit it correctly, the container is filled with industrial salt, right? Just add some to the quenching liquid. Well, the ratio is about 10%, not too much."

"In fact, adding salt to the water can double the cooling rate, and there will be no quenching and uneven quenching."

After saying that, Zhao Guoyang paused and added: "Industrial salt can be said to be the most ideal coolant for hardening. Of course, if the workpieces produced by your factory do not need to be too hard, then you can do it.

Zhao Guoyang's words made Liao Jingsheng and Ning Xiaohong look at each other.

At this time, they had long lost the previous contempt for Zhao Guoyang, and they believed that he was a master who was very proficient in tempering.

Because there are a lot of theoretical knowledge he mentioned, which is something that Liao Jingsheng, Ning Xiaohong, and the two former and current technical section chiefs do not understand very well.

"Why are you two still standing there? As Mr. Zhao said, go and get 10% industrial salt water to replace the tap water as quenching liquid!" Liao Jingsheng looked at the two workers standing there stupidly and waved his hand.

At Xiangyang Machinery Factory, Liao Jingsheng's words were nothing more than an imperial edict. After two skilled workers got the order, they hurriedly ran aside to prepare industrial salt water.

Taking advantage of this opportunity, Zhao Guoyang turned his gaze to Ning Xiaohong and kindly reminded: "Secretary Ning, because the quenching liquid you are now equipped with is tap water that has not been placed yet, there are some alkaline substances in it."

"I suggest that you put the workpiece that has just been quenched and wash it after the industrial brine is prepared. In this way, this will make the quenching spots on the workpiece lighter; and the other one can also neutralize alkaline molecules in the water."

"Uh... OK, OK, I understand, Comrade Zhao...." Ning Xiaohong was completely suppressed by Zhao Guoyang's professionalism and erudition, and he never dared to shout at him anymore.

Zhao Guoyang was not surprised by Ning Xiaohong's change in attitude.

In his opinion, if Ning Xiaohong is really stubborn for her sake, it means that she is useless at all.

As for now, it seems that this girl still knows how to advance and retreat, and is a competent technical section chief.

The two workers quickly prepared 10% of the salt water and carried it over.

Ning Xiaohong signaled them to put the workpiece that had just been quenched, cooled and washed, and then secretly observed Zhao Guoyang.

About ten minutes later, Zhao Guoyang nodded slightly to Ning Xiaohong and said, "Well, it's almost done. You can take out this workpiece and prepare for quenching."

"Okay, I'll let them prepare now!" Ning Xiaohong nodded vigorously.

"Oh, wait a moment." Zhao Guoyang suddenly shook his hand and said.

Under Ning Xiaohong's confusing eyes, Zhao Guoyang smiled and said, "That's the case. This is the first time you have adopted this method of tempering. I am worried that the two masters will not have a precise grasp of time."

"I will take the initiative this time. If you don't mind, please ask Section Chief Ning to help me."

"I don't mind, no problem!" Ning Xiaohong was thinking about learning two tricks from Zhao Guoyang, so she naturally agreed.

Zhao Guoyang borrowed work clothes from one of the workers, changed them temporarily, and then put on thick industrial gloves.

Another worker also handed the workpiece ready to be quenched to his hands at the right time.

"Secretary Ning, from the appearance, your workpiece should have certain hardness requirements, right?"

"Yes, yes, this workpiece is a chisel we made for a small agricultural tool factory, and the hardness is required." Ning Xiaohong nodded repeatedly.

"Well, since that's the case, it's definitely a little bit less fragility of this workpiece. Okay, just help people to the end and add a 'retarding' process for you."

After saying that, Zhao Guoyang did not ask Ning Xiaohong to do it. He skillfully turned on the electric stove beside him and adjusted the temperature to a suitable number.

Not long after the workpiece was placed on the stove, it gradually turned into a deep fiery red color. Zhao Guoyang watched the change of the color of the workpiece without stopping, and flipped the workpiece with fixtures.

Looking at his skillful operation techniques, the two workers beside him looked at each other.

One of them couldn't help but mutter: "It's so weird. This Zhao Gong seems to be not as old as my son last year. Why is he so skillful? I think he is better than our Section Chief Ning."

"Who said no!" another worker replied.
Chapter completed!