When Jiao Dalin said this, Shang Guangrong could only smile awkwardly, and then said uncertainly: "I want to solve it completely...... Possible...... Maybe change the welding equipment!"

"What kind of equipment?"

"Carbon dioxide gas shielded welding!" Shang Guangrong gritted his teeth and said this set of special terms.

This is not Shang Guangrong's pretense, but it is still a novelty in the current Chinese shipbuilding industry carbon dioxide gas shielded welding.

Although China has mastered carbon dioxide gas shielded welding and core technology in the 60s, and related equipment can also be produced by itself, due to various reasons, this kind of welding technology with high efficiency in the shipbuilding field has not been fully promoted in the entire shipbuilding industry.

Only a few large shipyards have mastered this technology, and because of this, the research and development and production of related equipment for carbon dioxide gas shielded welding have been greatly limited, and it has become less and less competitive compared with similar foreign equipment.

Shang Guangrong really put a lot of effort into finding the solution to the weld crack, otherwise it would not be possible to find carbon dioxide gas shielded welding, a welding technology that Endeavor has never been exposed to.

But because of this, Shang Guangrong has never made up his mind, not that the carbon dioxide gas shielded welding is not good enough, but that the related equipment is too expensive.

There is no way, if the domestic equipment is not powerful, it can only rely on imports, and the imported equipment is expensive, not to mention, it is too late in time.

After all, the maintenance period of the No. 389 minesweeper is only two and a half months, and the general imported equipment alone will take more than half a month for approval.

It was precisely because of this concern that Shang Guangrong did not rush to say it, but wanted to wait for Meng Jianye to come back and discuss it with this technical pillar, which Cheng thought that Meng Jianye did not wait to come back, but was knocked by Jiao Dalin, not to mention how depressed Shang Guangrong was.

Jiao Dalin and Guo Huaisheng are not much better than Shang Guangrong, they are all insiders in the shipbuilding industry, they have not seen carbon dioxide gas shielded welding but have heard of it somewhat, especially about this kind of welding technology equipment, it is said that foreign suppliers buy one more expensive than one, even if it is a second-hand equipment, it will cost tens of thousands of dollars.

That's right, it's a dollar, not a yuan, it's really similar to grabbing money, so some foreign manufacturers are still unwilling to sell you equipment for such and such reasons.

So, Jiao Dalin and Guo Huaisheng, who were originally frowning, completely squeezed their eyebrows into Sichuan characters in front of their foreheads, and finally Guo Huaisheng broke the silence: "Lao Shang, if you can get carbon dioxide gas shielded welding equipment, how sure are you?"

Shang Guangrong pondered for a while, and finally reported an extremely conservative number: "About sixty percent!"

Obviously, the value of sixty percent did not meet Guo Huaisheng's expectations, so his brows furrowed even tighter, and Jiao Dalin on the side saw some clues, so he asked: "Old Guo, do you have a way to get carbon dioxide gas shielded welding equipment?"

"It's hard to say, but the repair materials for the Project 389 minesweeper didn't come from the logistics warehouse of the headquarters of the N fleet, and maybe there is also the equipment you want. ”

Guo Huaisheng didn't hide it, and said his thoughts one by one.

In fact, it is also true, unlike inland river cruise ships, the technical requirements are not high, so the general local industrial enterprises can do supporting it.

However, the No. 389 minesweeper is a real warship, and the technical requirements are much higher than those of civilian ships, not to mention, the ordinary low-carbon steel used for the pleasure boats built by the Endeavor Factory is sufficient, but the most common ship plates on the No. 389 minesweeper are high-strength low-carbon alloy steel with excellent performance.

In the early eighties, China was not unable to produce high-strength low-carbon alloy steel, but what is speechless is that the marine steel on the project 389 minesweeper was the Soviet POA32 marine special alloy steel.

A very small amount of manganese and nickel is doped in order to increase the pressure strength of the steel.

And this kind of steel, now can not be produced in China, because the important element nickel is extremely rare in China, so in the 60s, China found another way, with rare earth instead of nickel, this is the development of high-strength alloy steel with Chinese characteristics.

But the problem is that it is more difficult to weld the steel of different compositions together, and there are many hidden dangers inside, so if you want to completely repair the project 389 minesweeper, similar fucking materials are necessary.

Fortunately, the Sino-Soviet honeymoon period allowed China to obtain a lot of Soviet-original good things, even if these things are outdated or even decommissioned, but the dismantled parts are still in good condition, and most of these things are concentrated in the navy's logistics warehouse.

As a result, a material application for the N fleet was sent to the naval headquarters, and a large number of materials, including the Soviet POA32 marine special alloy steel, were sent to the Endeavour factory.

After listening to Guo Huaisheng's words, Jiao Dalin's eyes lit up, but when he just wanted to ask about the specific situation, there was a sudden noise of laughter in the cabin not far away.

"Yo, Sister Hong, you came to bake the boat board again today, I just caught two catties of cuttlefish in the morning, you are reluctant to help me cook?"

"That's right, that's right, listen to Brother Jie, what is Sister Hong's doing? Yes, teppanyaki, it is said that it is still the stuff of South Korean sticks and little devils, Sister Hong, you bake the boat board with a welding torch, what a waste, give our brother a few hands?"

"Yes, yes, let's also try the little devil's stuff and open the foreign meat!"

"Get out~~Get out~~, don't you see I'm busy?I want to eat, go home and ask your mother-in-law to make it for you, my mother doesn't have time to take care of you...... What do you hairless guys still want to do? Kick your nose in the face, don't you? Believe it or not, I'm holding a welding torch and burning the rest of your hair!" In the midst of a group of laughing male voices, a female voice suddenly sounded not to be outdone, suppressing all the male voices.

"Okay, okay, my Aunt Hong, you are better than us, grandfather! Let's be wrong, okay? When Meng Changzhu comes back, we will go to him to eat teppanyaki, and then see if your mother-in-law will make it for us~~~Haha~~~"

"If he dares to let a few of you come, the old lady will dare to burn you together, don't you believe you try?" The female voice still did not show weakness, and the result was naturally the louder laughter of those male workers.

Jiao Dalin, Guo Huaisheng and Shang Guangrong's faces darkened at the same time, they were all working hard for the weld here, but there was laughter in the cabin, which was just normal, but at this moment, how did the two of them feel awkward, so the three of them came to the porthole, looked inside, and were stunned.

I saw Sun Honghong wearing a welder's mask, holding a welding torch in one hand and a waist in the other, shaking the welding torch in his hand at several male workers with horizontal eyebrows, and shouted domineeringly: "Don't you don't believe it, come, see if I dare to roast you into pig's heads!"