Chapter 289: Overkill

Qiu Bole's situation is a little better.

He had spent his early years in Germany and had some connections with FAG.

If necessary, he can use some of his previous connections in Germany to get some technical support from FAG to guarantee his own survival.

However, the Germans are also very rigid in doing things, and they pay attention to the rules in everything, and this support is not strong.

Unless, it is Hubberle who is willing to become a foundry of FAG.

Now, Qiu Bole just hesitates.

Do you want to become a FAG foundry?

Becoming a foundry means that the income is not much. But stable. There is no need to think about marketing.

However, after becoming a foundry, I feel that there is no passion.

I'm about to become a robot, and I can only accept FAG's instructions.

In addition, I am afraid that the control power of the factory will also have to be handed over. Blonde foreigners will come to take control of the factory.

Willingly?

Of course not reconciled.

Who wants to give away their factory?

As long as there is a glimmer of life, we must do our best. Until the last minute, never give up easily.

"What kind of help do you want?" asked Wang Bu'an lightly.

Everyone understands people, so there is no need to be polite.

Getting straight to the point is king.

That's what I want to be the president.

I want your support.

It's as simple as that.

Why do you support me?

Because I can help you. I can help you get out of this situation. Help you thrive and develop healthily.

"Mainly raw materials. "Yuan Baoshan didn't beat around the bush anymore.

"Is there a list?" Wang said.

"Yes. ”

"Show it to me. ”

"Good. ”

Yuan Baoshan handed over the list of materials.

Wang Buan glanced at it casually. Nothing special. Totally satisfied.

Yuan Baoshan's main focus is thrust ball bearings. Required cemented carbide.

According to the material specifications, it is required to be able to withstand more than 50 tons of gravity per square centimeter.

That's right, it's 50 tons.

As long as it is higher than 50 tons, it can meet the needs.

However, Wang Bu'an searched and found that none of them were as small as 50 tons. All cemented alloys are 7,200 tons.

It seems to be a waste to use such a high-grade cemented carbide to make thrust ball bearings?

100% overkill!

"What about yours, what do you need?" Wang Buan turned his head to look at Zhong Dajiang.

"Here it is. Zhong Dajiang handed over the list.

Wang Buan glanced at it casually.

Still nothing special. It's totally satisfying.

Zhong Dajiang's main focus is the two-way thrust angular contact ball bearing, which is also a bearing with very high requirements. The requirements for raw materials are very high.

It is not only required to resist heavy pressure, but also to resist centrifugal force. Resistance to 500 degrees Celsius is also required.

High-end bearing steel is required, and the required grade is very high and the cost is also high.

Any high-end material, once it comes to cost, that's a problem.

Zhong Dajiang's main problem at present is that the cost of raw materials is too high, which makes it difficult to sustain.

His hopes were immediate.

The price of raw materials can be reduced by half.

"The price of high-end bearing steel is more than 200,000 yuan per ton! Zhong Dajiang sighed helplessly.

"I'll give you bearing steel, 100,000 per ton. Wang Buan said.

"Can you meet the requirements?"

"Of course. ”

Wang Buan replied confidently.

What does it mean to be able to meet the requirements? Is it completely dozens of times beyond the standard of your needs?

It's completely overkill.

Others use it to make aero engines.

It's a bit of a waste to make bearings. However, in order to improve the quality of products, this has to be done for the time being.

"What about yours?"

"Here it is. ”

Qiu Bole's research is mainly on needle roller bearings.

In this year, if you want to get ahead, you must continue to research new products and constantly bring forth the new.

Or like Wang Buan, he has an overwhelming advantage in quality.

However, needle roller bearings are more demanding.

What is a needle called?

Relative to its diameter, the rollers are thin and long.

However, the load to be borne is very large, which requires not only resistance to heavy pressure, centrifugal force, high temperature, but also very high toughness.

This will be more demanding on raw materials.

Even very high-end bearing steels are not sufficient.

It must be a special bearing steel.

In the final analysis, the quality of bearings is closely related to the raw material - bearing steel.

The problem now is that the bearing steel either fails to meet the demanding requirements. Either it was reached, but the cost was high. Or maybe the production is so small that it can't meet the market demand.

What are the requirements for bearing steel?

First, it is necessary to resist fatigue. Under the action of cyclic load, the bearing is easy to wear and damage when it comes into contact with the surface, that is, cracks and peeling off, which is an important sign of bearing failure. Therefore, in order to further improve the service life of the bearing, the bearing steel must have a high contact fatigue strength.

Second, it should be wear-resistant. When the bearing is running, not only rolling friction occurs between the ring, the rolling element and the maintenance frame, but also sliding friction, which causes the bearing parts to wear out all the time. In order to increase the wear of bearing parts, maintain the accuracy and stability of the bearing, and extend the service life, the bearing steel should have good wear resistance.

Third, hardness. Hardness is one of the important qualities of bearing quality, which has an indirect impact on contact fatigue strength, wear resistance and elastic limit. The hardness of the bearing steel in the application condition should reach more than HRC61~65. The bearing achieves high contact fatigue strength and wear resistance.

Fourth, rust prevention. In order to avoid the erosion and rust of bearing parts and finished products in the process of processing, storage and application, the bearing steel should have good anti-rust performance.

Fifth, it is easy to process. In order to meet the requirements of small quantities, high efficiency and high quality, bearing steel should have good processing performance. For example, cold and hot forming properties, machinability, hardenability, etc.

In addition to the above basic requirements, bearing steel should also meet the requirements of appropriate chemical composition, average external structure, less non-metallic adulteration, external appearance defects to meet the specifications, and the surface decarburization layer does not exceed the regular concentration. Last but not least. Of course, the price should be reasonable. So that the bearing manufacturer can bear it.

Due to the very many requirements, the price of good bearing steel is very high.

Several multinational companies either develop their own products or cooperate with high-precision steel mills. Specializing in the production of bearing steel.

The biggest weakness of our country is that the production of raw materials cannot catch up for the time being.

In the field of bearing steel, we started slowly. Even if it develops rapidly, it is asymmetrical.

Generally speaking, bearing steel is divided into six categories: high-carbon chromium bearing steel, chromium-free bearing steel, carburizing bearing steel, stainless bearing steel, medium and high temperature bearing steel and anti-magnetic bearing steel.

High carbon chromium bearing steel [GCr15] is the world's largest production of bearing steel, carbon c is about 1%, chromium cr is about 1.5%, from 1901 birth to more than 100 years, the main components have basically not changed, with the progress of science and technology, research work is still continuing, product quality continues to improve, accounting for more than 80% of the world's total bearing steel production. So much so that if there is no special description of the bearing steel, it refers to GCr15.

The main steel grade of high-carbon chromium stainless steel produced by Huaxia is 9Cr18, the main steel grade is G20CrMo for carburized bearing steel, and the main steel grade is GCr15 for chromium bearing steel. are the more common types of bearing steel. Some of the more unpopular and extreme bearing steels are not produced.

For example, the special steel for needle roller bearings that Qiu Bole needs needs to be specially imported from abroad. There is no way to meet the demand in China.

Once the import channel is cut off, or the price is deliberately raised, he is tragic.

Now, what he has encountered is a sharp increase in prices.

The original special steel for needle roller bearings is about 300,000 yuan per ton. Now it has skyrocketed to 500,000 per tonne.

The cost has increased so much all of a sudden, of course, Qiu Bole can't afford it.

Large manufacturers may have a certain amount of inventory to survive the crisis.

A small manufacturer like him doesn't have any inventory.

There was no inventory, so we had to stop work.

Once the work is stopped, it is burning your own blood!

"The needle roller bearing raw materials you need ......," Wang Buan said to himself, "There is no suitable ...... for the time being."

"Is there really not?" Qiu Bole couldn't help but be greatly disappointed.

Zhong Dajiang and Yuan Baoshan also expressed deep sympathy.

However, there is no way to do it.

After all, needle roller bearings require raw materials. It's really special.

Wang Buan is not a god.

He couldn't solve all the problems.

"Actually, there is no need for special bearing steels. Wang Buan said lightly, "Ordinary cemented carbide is enough." ”

"No way. "Ordinary cemented carbide should never be used. Even if the hardness is reached, the toughness cannot be reached. ”

"Isn't 900 Pa enough for tensile strength?" Wang Buan disagreed.

"900 Pa? Of course that's enough. Qiu Bole was slightly stunned.

"The cemented carbide I gave you. This is the one. ”

"Huh, such a high parameter?"

"That's right. It's a bit overkill, isn't it? It's only 100,000 yuan per ton. ”

"Good, good, good. ”

Qiu Bole was finally relieved.

If the parameters of this hard carbide are true, he has definitely earned it.

Not only can we meet the current production needs, but also can continue to develop new products. Develop more high-end products.

The resistance to heavy pressure is 7200 tons, the resistance to high temperature is 7200 degrees, the resistance to centrifugal force is 720 tons, and the tensile strength is 900 Pa...... It's simply a flawless material. If it is used as a bearing, it is indeed very condescending. However, on the other hand, the bearings made of it can also crush the opponents? If its performance can be further exerted, will it not be able to make the world's best needle roller bearings?

It is no wonder that the bearings of brands such as Pterodactyl, Stegosaurus, and Ryzen can occupy the top three in hardware quality. Dare to love is that the raw materials are so good!

"However, this carbide is too good. Wang Buan showed a hint of an intriguing smile, "I'm afraid your current machinery and equipment can't be processed." ”

"Oh, are you going to sell us professional machines?"

Today 6 more. I hope to get a little more referral votes. Thank you.