The method to solve this contradiction is not only to use more expensive and advanced materials, but also to heat treatments, such as quenching, carburizing, and nitriding. At present, many manufacturers who submitted samples have adopted various heat treatments, and preliminary inspections also meet the requirements. However, the gear mechanical properties they use heat treatment methods to improve cannot guarantee sufficient safe use time. They often fail in high temperature, dusty and high humidity environments.

Some manufacturers have adopted electroplating or surfacing technology to cover the surface of the gear with a durable and high temperature resistant metal or metal alloy, but the effect is still not very ideal.

Are processing manufacturers all over the world helpless? Obviously not. If this is the case, the French VOROU company would not design such gears, nor would it bid for external bids. In fact, some people know that if a special method is used to handle gears, all problems will be solved. However, this special method is too costly and has too great side effects, and no manufacturer is willing to try it.

This special method was developed two years ago by an Australian scientist, called the S-06 metal device surface treatment method, and he also applied for a patent for this. The principle is to use special catalysts and certain special compounds and polymers to strictly control temperature and air pressure, and conduct a cumbersome chemical reaction, and finally form an alloy layer of about nine microns thick on the surface of the gear, thereby increasing the wear resistance of the metal device and maintaining its inherent mechanical properties for a long time.

The S-06 method is different from the more advanced surfacing technology on the market. It not only uniformly stacks an alloy layer with excellent hardness and strength on the protected surface, but this alloy produces crystal structure growing inside the matrix under special conditions, so that the alloy layer and the substrate can be better integrated into one, so that the protected surface can be protected stronger.

This layer of alloy has greater toughness and yield strength than the alloy layer formed by surfacing technology, which can greatly increase the device life.

However, this S-06 method has a disadvantage that cannot be ignored: that is, the reaction conditions are too harsh. It not only consumes a lot of labor and electricity, but also requires a lot of precious metals. What is more troublesome is that the waste, wastewater and waste gas generated are highly toxic. The most serious of the harm of heavy metal cadmium is difficult to avoid. Cadmium metal with low boiling point will spread everywhere during chemical reactions.

In order to reduce the harm of cadmium metal, processing enterprises must pay a lot of money to protect and must invest a lot of money to control the polluted environment.

Cadmium (Cd) is a highly toxic heavy metal. Cadmium can stimulate the respiratory tract and long-term exposure will cause olfactory loss. The gingival macules may gradually become yellow circles. Cadmium compounds are not easily absorbed by the intestines, but they can be absorbed in the body through breathing and accumulate in the liver or kidneys, causing harm, especially the most obvious damage to the kidneys, and can also lead to osteoporosis and softening.

Because cadmium is harmful and difficult to control environmental pollution, most companies keep away from the S-06 method. Only when major projects are involved do they have to use this method to process it.

This French VOROU company is unwilling to make a big fuss for a few hundred sets of gears, unwilling to offend the environmental protection department and pay high fines, and unwilling to be sued by residents in the future to pay sky-high compensation. They would rather pay high prices to purchase from other countries. They believe that as long as they quote high prices, as long as they lie that if anyone can deliver this batch of gears on time, who will receive large orders from VOROU in the future, they will definitely be tempted by companies, and some companies will use the S-06 method to perform gear processing for their VOROU company.

There is a saying in Chinese: having money makes it hard to make the ghosts push. What's more, many developing countries are short of money, and these countries are not strict with environmental protection requirements. There will definitely be companies in these countries who are eager to try it out.

There are many businessmen in the world who are tempted by money and can ignore any moral bottom line in order to make money. Therefore, they believe that as long as the bait is thrown, the fish will be caught.

Sure enough, after the tender was issued, many companies sent gear samples. These companies were from China, India, Brazil and other countries, from developed countries such as Australia, New Zealand, the United States, Canada and even from France itself.

VOROU was very happy to see so many samples coming one after another, but after taking apart the gears sent, he could only shake his head: none of the products were qualified.

Don’t think that if so many samples come, the technicians in French companies are too busy to be busy. In fact, this kind of test is easy. Just check whether there is a dense alloy layer on the gear. This simple test will PASS more than 95% of the samples. Only a few companies’ products can barely enter the next more stringent test.

...

Wang Lu's company is just one of hundreds of tempted or deceived companies around the world.

There are many people and many companies who have seen through the evil intentions of this French VOROU company and know that this is the French VOROU company passing the pollution problem to other countries, especially poor countries. But most of them have the mentality of having less than more things, and have not stood up to accuse VOROU of not having the conscience of the industry. In their opinion, this is a willing to fight and the other is willing to suffer. Since you want to make money, you must be prepared to damage the environment.

There are also some journalists or lawyers who are in a dark heart. They quietly wait for others to take the bait with excitement. As long as someone takes this method to process metal parts, they will represent justice and axiom to check the other party’s environmental protection measures. They will swear on TV to show how social responsibility they are. They will inspire the surrounding residents to fight environmental protection lawsuits with the other party and make high compensation. It is another vigorous news event. How great.

Even if this company is in a country that they are beyond their reach, they will stand on the moral high ground to criticize each other, making those evil countries feel ashamed, and in turn to enhance the image of themselves and their own country.

Therefore, this time the bidding of VOROU company in France was not only smooth, but also many people helped. Some media promoted the high technical content of this gear in newspapers, saying that the company that can make this gear is a company with strong technical strength and will definitely be among the top 500 in the world in the future.

Some people also "gracefully" reveal the processing method of S-06 to the outside world, reminding companies that do not know this method to try it.

In contrast to the external reaction, VOROU, the person involved, was anxious: because the delivery period stipulated by the military is getting closer and none of the gear samples received in the past three months have passed, and the qualified finished products are far away. Several companies have barely applied a layer of alloy containing cadmium on the surface of the gears, but the quality is still not good.

I don’t know if they didn’t fully master the S-06 method, or because they didn’t dare to completely adopt the S-06 method, or they were using the methods they developed by themselves... Anyway, these samples did not meet the relevant technical requirements.

They found that this tender could be said to be a rock to hit their feet, which was really hard to get on the ground. If they had known the result was like this, it would be better not to bid and secretly use the S-06 method to process it. Although it may still be discovered by the media and be condemned, and may be complained by the surrounding residents for compensation, at least it will not alarm so many people as they are now, and it will not become the focus of the media, or many people can settle the matter with a little money.

But it is very difficult to settle now.

After some painful discussion, the senior executives of VOROU had no choice but to make a decision:
Chapter completed!