Great Power Ship

Chapter 152 Underwater cover type semi-automatic welding machine (for subscription)

"Of course... You look at the workmanship, the materials, and the appearance. Japan's Kawasaki Heavy Industries' underwater partial dry semi-automatic welding machine like a broom star can't compete with our ZJ-280 underwater welding machine." Cover type semi-automatic welding machine compared.

Oh, by the way, Japan's Kawasaki Heavy Industries' underwater partial dry semi-automatic welding machine is also shamelessly called a semi-automatic welding machine. Except for the automatic transmission of welding wire, it is basically a manual welding thing, so the Japanese are willing to put gold on their faces. Fooling people with a four-dimensional thing..."

As soon as Qin Gangsheng's words fell, Wen Dawei stepped on the car body and followed him on the car body. After a brief introduction to the ZJ-280 underwater cover-type semi-automatic welding machine, he started to complain about similar products from Kawasaki Heavy Industries in Japan. model.

Although Wen Dawei's words were somewhat biased, Qin Gangsheng knew that in general they were not bad.

Although Kawasaki Heavy Industries' products are second to none on the ground in Asia, they are still far behind those in Europe and the United States, which regard offshore engineering as another expansion.

Take the PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine that Qin Gangsheng is going to represent as an example. Its prototype comes from the technical patent of the United States.

And it is still an immature technology patent.

The reason for this is very simple. The Americans do not grant mature technology patents at all, so they can only be big ones. However, the United States has no intention of transferring the core patented technology, and they still do it. heavy restrictions.

That is to say, there are not many things that Kawasaki Heavy Industries bought at a big price that can really be used.

If you can’t use it, you have to spend energy to change it yourself, so as to avoid the corresponding technical barriers and restrictions, so the somewhat deformed PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine was born.

Its biggest feature is that the nozzle of the welding torch is surrounded by a circle of dense steel wire like a brush, so that the high-temperature gas generated when the welding wire burns will drain the water around the welding torch, thereby forming a high-pressure gas phase cavity, and At this time, the external water will be blocked by dense steel wire brushes, thereby forming a local dry space around the welding gun mouth, and then implementing the normal welding process.

In principle, the PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine handles it very well, using the simplest materials to achieve an underwater welding capability that can reach a depth of 40 meters.

And the cost is not high.

But from the point of view of actual operation, the PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine is just like the original Japanese culture, and it is weird and somewhat anti-human.

Because this PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine is known as a semi-automatic welding machine, except for installing an automatic wire feeder, the rest of the operations require the fine operation of the underwater welder, including current control, temperature control, Verification of welding points, etc.

In addition, as a local drainage welding machine, the PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine does not solve the problem of a large amount of smoke and water vapor removal, which also leads to the formation of a large amount of smoke and water vapor around the weld in actual operation , Block the underwater welder's sight, making the welding project closer to blind welding.

And this often leads to poor quality welds, or the inexperience of underwater welders will distort the solder joints and damage the components.

Of course, the most important thing is the steel brush structure that Kawasaki Heavy Industries is proud of, which seems to have avoided the American patent, but in fact this thing is very tasteless.

If the water is too deep, the drainage will not be clean due to the pressure problem; if the water is too shallow and due to the internal pressure problem, too many bubbles will bombard the weld seam during contact combustion, causing the weld seam to crack.

Therefore, the most suitable depth of PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine is about 15. If it is too deep or too shallow, there will be difficulties of one kind or another.

Of course, it is another matter if there are experienced underwater welders.

The problem is that training such an underwater welder cannot be completed overnight, and the resources of time and resources are so massive that they are as rare as pilots.

And this is one of the reasons why Kawasaki Heavy Industries always insists on renting out the PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine. After all, they spend a lot of money to train so many experienced underwater welders. Such good steel naturally needs to be used. to the cutting edge.

In addition to showing Japan's superb skills and craftsman spirit, it is also an eye-opener for Kawasaki Heavy Industries, the gold-lettered signboard.

Take a look at our equipment and the superb skills of our professional and technical workers, which one is worse than those in Europe and the United States?Even if the PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine cannot be sold to you, you can still choose other Kawasaki Heavy Industries products. Come~ come~ come~ let you see the shelves of Kawasaki Heavy Industries, do you feel excited?

Relying on this hand, Kawasaki Heavy Industries can be said to be invincible and make a lot of money.

The problem is that no matter how Kawasaki Heavy Industries plays tricks, if it doesn’t work, it won’t work. Qin Gangsheng, who knows the inside story, hesitated for a long time, but he had no choice at the time. Apart from Japan’s Kawasaki Heavy Industries, there is no other manufacturer in Asia that produces this thing. , no matter how many discounts there are in various aspects of Japanese products, it is also a good speech.

Switching to Europe and the United States, Qin Gangsheng, let alone acting as an agent, even went in the door!
However, the ZJ-280 underwater cover-type semi-automatic welding machine of Zhujiang Factory is different. Although it is only a special equipment for underwater pipeline welding, it can be diagonally opposite to Japan's PT-90 Kawasaki Heavy Industries semi-automatic underwater welding machine. The applicability of welding complex workpieces such as iron is slightly worse.

However, because of this, the ZJ-280 underwater cover-type semi-automatic welding machine is also more stable. You must know that it is 1.5 meters wide and uses a semi-arc water cover with the same shape as the pipeline, which can completely divide the pipeline into three parts. One to half of the local space is covered.

Then, through the waterproof and sealed motor set on the top, the internal water will be discharged through three drain/smoke valves at the same time as carbon dioxide or other inert gases. At this time, the underwater welder can check the dry parts inside through two observation windows. Do the welding.

Because of the existence of the drainage/smoke exhaust valve, the welding process is clearly visible. Cooperating with the automatic wire feeder and the supporting one-button start, the welder only needs to manipulate the outer handle and slide it lightly at the position to be welded. Leaves a very high quality weld.

"How about it, Boss Qin..."

In the end, Wen Dawei smiled and looked at the ZJ-280 underwater cover-type semi-automatic welding machine repeatedly with his hands, as if he saw Qin Gangsheng who was a peerless treasure who couldn't put it down: "Are you satisfied with the gift I gave you?"

"Satisfied, satisfied..."

Qin Gangsheng nodded again and again, but frowned again at the next moment: "I'm just satisfied. Europe and the United States also have similar equipment, just in case..."

"You mean the issue of intellectual property rights?" Wen Dawei asked back.

"That's right, you know those white men are serious!" Qin Gangsheng said helplessly.

"Don't worry, they can't find our troubles, but they have to find a way to use our ZJ-280 underwater cover-type semi-automatic welding machine to learn from them!"

As soon as these words came out, Qin Gangsheng couldn't help opening his eyes wide, as if getting to know Wen Dawei again, Wen Dawei didn't hold back, and stretched out two fingers: "Because our device has two functions that they don't have..."

(End of this chapter)