Every powder coating technician who has just entered the industry will basically be instilled with a concept by the master who leads them.

Powder coatings are the most environmentally friendly alternative to paints.

In some cases, technicians will even emphasize the pollution of paint and the harm to the atmosphere to the human body, and then in turn will constantly boast about how good the powder coating is, how environmentally friendly, and how much better the quality is than the paint?

But in fact, in the hearts of every powder coating person, it is like a mirror, especially the particularity of paint, because it is liquid, so there are many technical advantages, powder coating is difficult to achieve.

Especially when it comes to metal coatings, paints are much better than powder coatings.

So every powder coating person seems to have an obsession, that is, beyond paint, at least in the future or when, their customers take the powder coating sample and go directly to the paint factory.

Come on, you do it, see if you can make it, and then the technicians of the paint and coating company, just like the powder coating technicians now, have a lot of headaches.

Powder coatings have been suppressed by paint coatings for too many years, so many people actually have a resentment in their hearts.

Zhang Xiaofan is naturally no exception.

He also wants to one day be able to suppress paint coatings.

Now the biggest advantage of powder coating compared with paint coating is environmental protection, so Zhang Xiaofan is very strict every time, and every time he will require technicians to control VOC (volatile organic compounds, in fact, it is a solvent in paint. ）

So during this period of time, there have been many problems encountered in technology and machinery, but Zhang Xiaofan has been avoiding the use of some or all organic solvents.

Zhang Xiaofan understands very well that as long as organic solvents are added, powder coating becomes very simple in spraying.

But once this happens, then Zhang Xiaofan feels that some of the insistences in his heart seem to collapse.

Today, this young technician gave Zhang Xiaofan a step and a transitional product!

Zhang Xiaofan adopted it!

So now Zhang Xiaofan is smoking here, looking at the sky, in a daze.

"Hey!"

"It's a bit pedantic!"

In fact, there is no need to say much about this, many people will frown when they hear paint, especially when spraying paint, many people will cover their noses and walk away in disgust.

So even a very ordinary person can know that paint is harmful, after all, everyone can smell that pungent smell.

In fact, sometimes you really need to deceive yourself, Zhang Xiaofan in order to promote powder coating to thousands of households as soon as possible, it can be regarded as adding a part of the organic solvent with a clear conscience.

It is undeniable that powder coatings with organic solvents are much more uniform when sprayed, but they will definitely pollute the atmosphere, and people can also smell this pungent smell, but it is much lighter than paint.

It stands to reason that such a thing can be postponed, because at present, only Zhang Xiaofan is working on this project in the world.

At least at present, basically all paint technicians, or powder coating technicians, are very instinctively treat powder coating and paint coating as two kinds of paint.

He really didn't expect Zhang Xiaofan to make a four-like, with the appearance of paint, the core of powder coating, and this kind of paint has the necessary conditions for large-scale promotion.

Through more than 200 technicians and more than four hours of overtime, they tested a ratio close to the most reasonable.

The next day, there was Zhang Xiaofan, who tried it himself, and then most of Professor Qin's team had already come over.

Zhang Xiaofan's team has basically completed some of the projects that should be completed, so only a few main people in charge have come.

Professor Qin, they naturally want to observe whether there is room for improvement in this equipment, and what flaws there are, although this equipment is relatively simple, but in any case, this equipment is also combined with some of their hard work.

This time it was a one-time success, but there was no surprise on the faces of the technicians I was with, and no one showed other exaggerated expressions, everyone felt that this was a very normal thing, after all, so many people put in so much energy and effort, there must be some reward.

"Professor Qin, I think there is a small thing to add to this device. ”

Because Zhang Xiaofan thought of a very serious problem when he was operating just now, that is, the curing reaction.

Powder coating will not react at room temperature, even if the raw material of this powder coating suitable for the experiment is specially made, and the molecular chain length has become much shorter, but it still cannot react with the curing agent at room temperature, so it needs to be sprayed a second time, and the substance sprayed for the second time is the accelerator, which can promote the powder coating to react at room temperature.

"I see that the operation you just made is basically reasonable and can be modified slightly, but what do you mean by adding some accessory equipment?"

"Because today's powder coatings can't react at room temperature, they have to be sprayed a second time, and the second coating is made with an accelerator.

In order for people to be able to reduce the investment in equipment, one machine can be sprayed twice, so I suggest adding a small storage pot to this storage pot to store accelerators.

Then set up a small mechanism next to it, which can switch between spraying powder coatings or spraying additives accelerators?

In this way, workers can apply the spray curing accelerator immediately after the powder coating is sprayed, so that the sprayed powder coating can be cured quickly, and some other unnecessary problems can be reduced. ”

Regarding this point, Zhang Xiaofan didn't mention it to Professor Qin in the early stage, so they didn't take this matter into account, and now Zhang Xiaofan proposed it, although it was a little late, it could have been designed and completed at one time, but it was relatively simple to add a small storage pot, so she nodded.

"This stuff is relatively simple, give us three hours and we'll be done. ”

When the improved spraying equipment was produced, Zhang Xiaofan conducted experiments as soon as possible.

The first spray was a powder coating diluted with water and solvent, and then after less than a second, Zhang Xiaofan flipped the switch and continued to spray the curing accelerator.

This reaction speed is very slow, it takes up to more than ten hours, it will definitely not be like the speed of baking, if it is baking, it can be cured completely in about ten minutes, and then the powder coating of good quality can not be knocked off with a hammer. You have to find the latest chapters by yourself to read books?