Good news came one after another.

After the completion of the transparent coating experiment, the primer experiment is nearing completion.

The primer requirements are not very high, but they are quite important.

There are two main requirements for primers, the first is flatness, and the second is adhesion.

In terms of adhesion, Zhang Xiaofan is not worried, and there is nothing to worry about.

It's just that because the thickness of the hub is relatively thick, the overall heating up is relatively slow when baking.

This is easy to understand.

A piece of iron five centimeters thick, and a piece of iron sheet.

If two things are roasted on the fire at the same time, you will find that the iron sheet will get hot in a few seconds, while the iron block will take more time.

The same goes for it, due to the thickness of the hub.

The heat conduction of the metal is also very fast, so the overall heating of the entire hub is actually relatively slow.

This requires a lower reaction temperature and a shorter reaction time.

But this degree must be well controlled, if the reaction speed is too fast, then the surface is difficult to flat.

If the reaction speed is too slow, then although the surface is flat, there will be many problems with his adhesion.

Or it takes more time to cure, which is also very large for energy loss.

Wheel coatings generally need to speed up the curing speed, not only for adhesion, but also to reduce energy loss.

The detection of this primer is relatively simple.

Fangnan Wheel Co., Ltd. has provided a lot of wheels for this beautiful material, just to love to make Zhang Xiaofan's coatings closer to the actual effect.

This test can be regarded as a personal test, not that Zhang Xiaofan is not at ease, but that he wants to understand the performance of the coating more clearly.

Look at the efficiency of spraying, see how the powder rate of the paint is, and how well it atomizes.

The result did not surprise Zhang Xiaofan, it was very good.

However, there is still a need for third-party testing institutions to conduct testing, and it must be the world's three largest third-party testing institutions for testing.

Although the most beautiful materials are very advanced in the laboratory, the test results are not much different from the test results of the three major testing institutions.

But your customers won't believe you.

Instead, they only believe in third-party testing agencies, which are also world-famous third-party testing institutions.

Because there are too many manufacturers testing the results on their own, often the numbers are fictitious.

Therefore, third-party testing agencies came into being, and the hotter the industry, the better their business will be.

Therefore, the cost of this test must be paid, and it cannot be saved.

There must be special personnel in charge of these things, and Zhang Xiaofan does not need to do it himself.

What has no result now is the team led by Zhang Xiaofan.

Shiny silver paint.

But this thing, as everyone knows, will definitely not be in a hurry.

At present, nearly two-thirds of the experiments have been done, but there are still no satisfactory results.

Zhang Xiaofan is considering whether he needs to use an additive, which is a silver powder arranger.

This is a polymer organic.

The main function is to effectively improve the gloss and metal effect of the surface of the metal coating.

For the current research and development of this glitter silver powder paint, it is also a great promotion.

But this arrangement of silver powder has a very, very annoying drawback.

It smokes.

And the amount of smoke is not small, which is actually a kind of environmental pollution.

I want to find a silver powder directional aligner that is very suitable for you.

Actually, it's very, very difficult, but I have to say that he is in this direction.

So Zhang Xiaofan still sent a person to collect information about the manufacturer in this regard.

See if there is a silver powder directional arranger that does not produce by-products and does not smoke when baking.

This kind of thing is rarely used, because most manufacturers are reluctant to use this kind of additives with very large disadvantages.

In fact, there are still some directional aligners on the market that do not have such shortcomings.

However, it may not be that the effect is not very good, so there are few people who use it, so this product may slowly disappear in the long river of history.

What Zhang Xiaofan wants now is to find this product, add it, and see if it works.

While searching, we continue to refine the current experiment.

If you can find a very suitable combination of polyester and curing agent, then there is no need to use any silver powder directional aligner.

In water-based coatings, silver powder directional alignment agents are used a lot, which is due to the fact that the emulsification of water-based coatings is not very good, so once water-based metal coatings must be used, this kind of additives must be used, and oil-based coatings are actually used a lot.

In fact, Zhang Xiaofan has always been determined to produce a paint, the kind of paint that is zero pollution to the environment.

Therefore, this kind of additives that will obviously pollute the environment should not be used as much as possible.

The experiment continues.

Zhang Xiaofan would occasionally come over to take a look at the progress of the experiment and see if there were any other important discoveries.

In the afternoon of this day, Zhang Xiaofan came into the laboratory again as usual.

A team member, this is a team member who Zhang Xiaofan can't name.

"Mr. Zhang, I found out something. ”

But now Zhang Xiaofan is very embarrassed, because he can't call the other party's name and doesn't know how to answer.

"What's the situation?"

"I did an experiment today and found that the results of one of the experiments were very different from the others. ”

Zhang Xiaofan instantly came to his senses, which should be a major discovery.

Zhang Xiaofan is actually not very sure in his heart.

In such a chance experiment, choosing a suitable one from thousands of materials is a very low probability thing.

The biggest purpose of this experiment is not to find the kind of raw materials that make people want to stop.

Rather, it is necessary to select the most suitable raw materials, or the best raw materials, from these materials.

This is also a kind of short and tall inside.

The development of coatings is very dependent on the development of raw materials, and if it is difficult for upstream products to make breakthroughs, it will be extremely difficult for downstream products to make breakthroughs.

Following the path pointed out by the unknown technician, Zhang Xiaofan quickly came to the desk.

On a piece of A4 white paper, there are already seven templates on it.

Zhang Xiaofan took a fancy to the middle piece at a glance, which is probably the so-called standing out from the crowd.

Compared with the other six models, this one looks very unique.

The office lights just shone on it, no, it should have been all seven samples.

This is the middle piece, which is a little too dazzling compared to the other six.

Zhang Xiaofan's mind was instantly caught by this model, and he couldn't escape. Read the latest chapters, stay tuned