The newly established Naixue Catering Management Company in H City, Jiangnan Province is temporarily located in the Xinghai Machinery Office Building, with a registered capital of five million yuan. Song Xuelu is helping Muyang prepare the company's articles of association, systems, recruitment and training materials, etc. Currently,

There is not a single soldier.

Mu Yang didn't want Song Xuelu to do anything that was too tiring.

When two people do things together, they feel less irritated and can chat about some relaxed and interesting topics in their free time.

Song Xuelu also faced many things. Sometimes she didn't want to disturb Mu Yang, so she had to ask the employees of Xinghai Machinery Company for advice, or check the information herself, or consult a consulting company.

The store is still being inspected, and the recruitment process will start immediately after the store starts to be renovated.

Song Xuelu has classes at school on weekdays, and has to learn how to drive on weekends. When she has no classes, or at night, she has to go to the company to learn how to set up a company. She is a bit busy, but she enjoys it and feels that she is growing every day.

Her roommates in their dormitory saw that she was busy all day long, but they didn't know what she was doing.

When she was tired, Song Xuelu went to Mu Yang's office for a walk.

On the weekend morning, she saw Mu Yang drawing pictures at the computer desk. After looking at it for a while, she couldn't get a clue.

Seeing that there was almost no boiling water in Muyang's cup, he poured her a cup of hot water.

After Mu Yang stopped drawing, she asked curiously: "Yangyang, what are you drawing?"

Mu Yang replied: "Xinghai Company's next plan is to use hot wire TIG welding equipment for cladding nickel alloy 625."

"We need to redo the equipment. Can't the company's plasma surfacing welding nickel alloy be welded?"

"What's different is that the thermal energy of plasma cladding is too dispersed, and the nickel alloy is prone to thermal cracks and cracks during welding."

Mu Yang explained to her that cladding of nickel alloy 625 is different from cladding of STL6. The cladding of cobalt-based alloy is for wear resistance and requires high hardness, while the cladding of nickel alloy is for corrosion resistance.

Alloy 625 is an austenitic super heat-resistant alloy with nickel as the main component. Cr is about 22% and Ni is 59%-63%.

It has excellent properties of extensive resistance to oxidation and corrosion.

Why do nickel alloys have such characteristics?

For example, the common stainless steel 304 contains more than 13% Cr, which will form a protective film of chromium oxide on the metal surface, so it is corrosion-resistant, but it will also rust in seawater, while alloy 625 will rust in seawater.

Will not rust.

The corrosion resistance equivalent PREN value of nickel alloy 625 is 40.3, while the PREN value of common stainless steel 304 is 18.0.

More than twice as much!

The corrosion resistance may be exponential. It can be seen that the corrosion resistance of 625 alloy is many times stronger than that of stainless steel 304.

For valves under some working conditions, they have anti-corrosion effects on chloride-contaminated media such as seawater, neutral salt and salt water. Using 304 will not work, but using nickel alloy to cover the surface can achieve corrosion resistance.

However, because nickel alloy is very expensive, costing hundreds of yuan per kilogram, the entire valve is very heavy, weighing hundreds of kilograms for a few inches, and more than one ton for large sizes, so it is impossible to make it with nickel alloy. Generally, the base body is made of

The surface of cheap carbon steel is covered with nickel alloy by overlay welding. This manufacturing method can reduce the usage of expensive nickel alloy.

Song Xuelu listened carefully to Mu Yang's explanation and probably understood something.

But there are some issues I still don’t understand.

For example, what are the advantages of Muyang’s new equipment?

Mu Yang further explained: “In fact, the advantages are similar to those of cladding STL6, that is, it is easy to control the cladding layer and can save 35% of welding materials.

Of course, traditional MIG welding has higher welding efficiency, reaching 3KG/hour in one hour, while the hot wire automatic TIG welding I plan to use has an efficiency of only 1.2KG/hour.

However, labor and equipment costs are nothing compared to expensive welding materials.

For example, for a ball valve with a diameter of 10 inches, the cladding area of ​​the ball, channel and inner valve body is about 24,000 square centimeters. The thickness of the conventional MIG cladding nickel alloy is 6 mm, the cladding weight is 112 kg of welding material, and the welding time is about 37 hours.

.

The unit price of nickel alloy 625 including tax is 250 yuan/KG, which is not much different from STL6. The cost of bare soldering materials is 28,000 yuan.

If you use hot wire TIG automatic welding, you only need to build up a thickness of 4 mm to meet the requirements, which can save 35% of welding materials and nearly 10,000 yuan!

Although the welding time is about 60 hours, which is 1.62 times that of conventional arc welding, one person can take care of two pieces of equipment, the efficiency is not slow, and other costs are not much different."

Mu Yang talked about a lot of technical data, and Song Xuelu probably understood it, but some knowledge points were difficult to understand.

In short, one sentence!

Hot wire TIG welding can save 35% of welding materials!

Muyang's new equipment makes money by saving welding materials, because nickel alloy welding materials are too expensive.

"Hehe, our current OEM price for STL6 is 600 yuan/KG. How much does it cost for OEM nickel alloy 625?"

"It is lower than cladding STL6. The regular OEM fee is 500 yuan/KG, which gives a gross profit margin of 250 yuan/KG. If it is hot wire TIG welding."

Mu Yang took out his calculator, did some calculations, and said:

"There is actually a gross profit margin of 337.5 yuan/KG."

Song Xuelu did some calculations in her head: "Compared to the profit of cladding STL6, it is not much, and the welding efficiency is not high."

Mu Yang laughed: "The profit margin cannot be compared with that of cladding STL6, but the situation is different."

A self-made hot wire TIG automatic welding equipment costs 80,000 yuan. According to ten hours a day and 330 days a year, about 4000KG of welding materials can be processed in a year. In fact, 6153KG of welding materials are manufactured according to the order of MIG welding.

Gross profit 2.07 million yuan!

But one welder can manage two pieces of equipment. Excluding labor and electrical costs, the annual pre-tax profit is about 3.95 million yuan.

At present, the annual pre-tax profit of a plasma cladding STL6 is about 3.62 million yuan.

The above calculations are based on sufficient order quantity.

The profit of a single hot wire TIG welding machine is not as good as that of cladding STL6, but the per capita profit is higher.

Moreover, this is to expand the business on the original partners, and there is no need to spend any energy on expansion.

A welder can create a profit of 3.62 million yuan for the company a year, which is a huge profit.

This is also due to the large amount of overlay welding for a single valve, and most of them are valves above 8 inches, so the OEM profit of a single valve is high.

At present, the domestic market for cladding nickel alloy 625 is worth two to three billion yuan. Muyang plans to make 30 units of hot wire TIG equipment first. If the order volume is sufficient, it will not be a problem to earn 50 to 60 million yuan a year.

If the order volume is large, it is possible to make profits exceeding 100 million a year.

This profit is purely based on business expansion based on the original partners. If you don't make money, you won't make it in vain.

Compared with plasma spray welding equipment, the equipment and process are not complicated, but compared to China, it is the first time that hot wire TIG welding is used for cladding nickel alloy.

Muyang has already drawn the three-dimensional drawings and is preparing them for processing by the workshop, and is giving the purchasing department a list to help purchase standard parts.

He personally led workers and welding engineers to install and debug this piece of equipment. After the employees learned how to do it, the rest of the equipment was released for them to assemble and debug.

This type of equipment has been available in China for a long time. It is more troublesome to debug the process. It takes some time to adjust it. It is difficult to keep it confidential, but when it is time to apply for a patent, apply for it.

the most important is,

Others have this equipment, but they don't have the strong cooperation channels of Xinghai Machinery Company, so they can't get so many orders.

It can no longer compete with Xinghai Machinery!

"Xue Lu, I have already drawn the drawings of this hot wire TIG welding equipment, and the company employees will be responsible for the next work. Tomorrow you and I will continue to inspect the store, rent it as soon as possible, decorate it and open it for business." Mu Yang has been busy recently.

The tea shop has been delayed regarding the new equipment.
Chapter completed!