Chapter 4 Porosity and Impermeability
Seeing the dispute begin again, Zhao Guoyang quickly coughed and said, "Dear leaders and masters, please listen to me."
"When I was in college, I interned in a welding factory in another province. I knew more or less about welding problems. Just now, Master Hua said that the problem of 'stomatal' is common in the industry, and I agree with this."
"Because there are indeed many welding factories, in order to save trouble, they do not pay much attention to this issue. After all, one or two 'air holes' will not have much impact on the use of most welding parts."
"But just our product, since it is used as a motorcycle frame and a very important component of the vehicle, we can't take it lightly for the issue of 'air holes'." Zhao Guoyang followed the conversation.
Looking at Zhao Guoyang, who had been taciturn and talking without any fright, Wang Youchang looked surprised as if it was the first time he saw him.
Mu Aijun and Ma Jian next to them also looked at each other, looking quite surprised.
Zhao Guoyang did not notice the eyes of several leaders and continued: "I believe everyone knows about motorcycles. In addition to the engine, the most core part belongs to the frame."
"Once there is a problem with the air holes in the frame, it is very likely to cause the effective cross-sectional area of the weld to reduce the frame density, and it will have a great impact on the frame load-bearing capacity and fatigue strength."
Speaking of this, Zhao Guoyang turned to look at Hua Guosheng and said, "So, I can only partially agree with Master Hua's opinion just now."
"The problem of 'air hole' may be even better in other manufacturers and other products, but since we are supporting large enterprises like Siyang Group and supporting important components such as the frame, this problem is absolutely not allowed. Otherwise, there will be only one result, that is, what everyone sees - return!"
After hearing Zhao Guoyang's words, Hua Guosheng's face turned blue and red.
He is arrogant and has never been very convinced. At this time, he was scolded by a fledgling college student, so he was naturally full of discomfort.
"Hmph, you are so eloquent. If you don't know, you would think you are from a sales department." Hua Guosheng tilted his head and hummed.
"Xiao Zhao, now everyone knows the problem. Can you have a solution to the problem?" Director Wang said in a silence.
"Of course there is!" Zhao Guoyang said confidently.
"What? Xiao Zhao, what did you say? Do you have a solution to the 'stomatal' problem?" Hearing this, Wang Youchang immediately became uneasy.
"Yes, Director Wang." Zhao Guoyang said with a voice.
"I not only have a solution to the 'air hole' problem, but also the problem of the 'unwelded' frame, so that the frames produced by our factory meet the acceptance standards of Siyang Group."
"Ah! Don't joke!" Such news surprised the cadres of all sizes at the scene. Everyone looked at the young college student with incredible eyes, wondering whether what he said was true or false.
"Xiao Zhao, if you can really solve this problem, the factory will definitely not treat you badly!" Mu Aijun looked at Zhao Guoyang with appreciation and said heroically.
"Yes, yes, Xiao Zhao, if you can solve the problem of this batch of frames and ask Siyang Group to agree to use our frames, you will definitely be a great contributor in the factory!" Wang Youchang also said.
Zhao Guoyang is not in a state of thought at the moment and directly tells his own solution.
"There are three solutions to this 'stomatal' problem. First, after welding, we need to add a process - to remove the welding wire. In addition, oil stains, rust, moisture and other debris on the working bevel and its nearby surfaces also need to be removed."
"Second, use alkaline electrodes, flux, and dry thoroughly, and preheat before welding to slow down its cooling rate."
"Third, when welding products like frames in the future, try to use stronger standards to implement welding."
"Finally, those frames that have been pulled back and reworked will be uniformly used for DC reverse connection and welded again with a short arc. After welding, it will be polished and painted!"
After talking about the solution to "stomata", everyone was stunned, and Zhao Guoyang continued to talk about the solution to "unwelded".
He pointed to the frame beside him and said calmly: "I just saw this frame. Overall, the welding process is still 'OK', but there are three 'unwelded' loopholes."
"According to my analysis, there should be some problems with the bevel and gap design, and the welding rod angle is not correct. In addition, too fast welding speed may be one of the factors that cause this situation..."
"The solution is actually very simple. Just increase the welding current and add the weld on the cover. In this regard, our team leader Liu is an expert in the welding group, and he can definitely solve this problem."
After Zhao Guoyang finished speaking, he looked at a gray-haired and thin master next to him with a smile.
This old master with a yellow complexion and a vicissitudes of life is named Liu Linzhi. He is in his fifties this year. He is the leader of the welding team of Hongda Machinery Factory. He has been the leader for more than 20 years.
Hearing Zhao Guoyang's words, Liu Linzhi raised his eyebrows and said in surprise: "Xiao Zhao, it's been a few months since you entered the factory. You are not diligent in our welding team. Why do you know so much about the welding process? It really makes me, the old guy, look at you with admiration!"
After Mr. Liu finished speaking, Zhao Guoyang grabbed his head and put on a very low-key attitude.
Indeed, the former owner of his body must not have much knowledge of welding, and it is impossible for him to say so many targeted solutions.
But who is Zhao Guoyang now? He enjoys special allowances from the State Council and is the youngest senior academician. If such a small problem cannot be solved, he might as well find a piece of tofu to kill him.
"Well, Master Liu, I'm not saying that I've been intern in the welding factory for a long time and I know a lot about this."
"It is precisely because of this that after coming to our Hongda Machinery Factory, I did not focus on welding, but wanted to try to involve as many things as possible that I was not familiar with, so..."
"Okay, Xiao Zhao, don't be humble. After hearing what you said just now, I can guarantee that your achievements in welding will definitely be as good as the fifth-level welder in my welding group." Liu Linzhi waved his hand and said.
"Director Wang, congratulations, your technical department has added another elite soldier!" Old Liu said with a smile.
"Old Liu, what do you mean is that the problem of 'unwelded' is, according to Xiao Zhao's method, can your welding group solve it?" Mu Aijun said overjoyed.
Liu Linzhi nodded, raised two fingers, and said with great certainty: "Do not worry, factory manager. Xiao Zhao explained the solution to the problem so clearly. If I, an old welder for decades, can't solve it, I'm sorry for the salary I received."
Chapter completed!