Zhang Jiaqiang glanced at their eyes and said in an extremely firm tone.

"I produce safety and explosion-proof lighters, and the requirements for the shell are higher. If it is traditional water cooling, it is equivalent to standing still and using low-temperature cold air to accelerate cooling, which can produce compressive stress and tensile stress on the outside and inside.

Under the force, the shell becomes stronger and stronger, which is what I want!"

What he was talking about was actually the principle of explosion-proof glass. It does not work well when used on plastic, but it can also play a role in strengthening the material.

If a professional said this, the old masters would certainly not have any objections, but coming from the mouth of Zhang Jiaqiang, who had not yet become an apprentice, these words did not feel very reliable.

Liu Zhenxing was even more puzzled, "Jia Qiang, although you are the boss, you can't joke about technical matters, let alone take it for granted. A big accident will happen!"

Zhang Jiaqiang smiled and said, "It doesn't matter, let's try it. If I'm right, you all have to listen to me in the future. If I'm wrong, technically I won't fart in the future!"

"But we don't have an air cooler. There is one idle in the factory. Maybe you can lend it to us?" Wang Aiguo said with a sad face.

Zhang Jiaqiang grinned and said, "Master, please run over and ask Director Yin to borrow an air cooler. If he doesn't lend it to you, tell me to go there myself!"

Although Wang Aiguo didn't believe that Zhang Jiaqiang was so generous, he still took two guys on a trip.

Within half an hour, the three of them came back carrying an air cooler.

"Jia Qiang, what's your relationship with Lao Yin? How come he obeys his advice?"

Zhang Jiaqiang laughed, "We are closer than brothers..."

Zhang Jiaqiang looked at the total of twenty-six workers in front of him and immediately divided the work. Half of them were cleaning and organizing the tools, and the rest immediately started the machines to do experiments.

With the buzzing sound, the machine warmed up, and soon they used the original mold to produce two batches of plastic bottles, one of which was traditional water-cooled and the other was air-cooled.

Zhang Jiaqiang took a look at these dozen plastic bottles and asked the master craftsmen to test them on the testing machine in the factory.

He didn't even bother to look at the results, because the answer had already been found in the history of his previous life.

Sure enough, not long after, these old masters came back with admiration on their faces.

Wang Aiguo clapped his hands and said with a smile, "Okay, Jia Qiang, the strength and high temperature resistance index of the things you produce this way are much better than those of traditional craftsmanship. You are worthy of being my apprentice!"

"You're shameless, you taught me this method?" Liu Zhenxing pushed Lao Wang aside and said solemnly, "Jia Qiang, we will all listen to you from now on!"

Zhang Jiaqiang hurriedly said a few words of humility and praised these old masters to the sky. The old people were all face-conscious and had to be coaxed.

Seeing that it was not early, he asked Master Liu to arrange for everyone to continue adjusting the machine and clean up the workshop. Then he left the factory with Master Wang Aiguo and went to the hardware factory to customize small accessories for lighters.

I asked Master Wang to keep an eye on these small parts in the hardware factory these days. Don't underestimate these things. Once there is a problem, it will affect the quality of the entire lighter.

Wang Aiguo patted his chest and promised that he would definitely keep a close eye on him!

It was already past noon after finishing all this, and Zhang Jiaqiang went directly to the dormitory without having time to eat.

The afternoon was more important. Zhang Jiaqiang and Ye Xiumei were going to meet her sister-in-law to settle the mold issue!

He hurriedly kicked all the way to the door of the dormitory, and by this time he was sweating profusely.

Now is the hottest time of the year. He is sweating even if he is sitting in the room. Not to mention that he has been riding a bicycle for more than ten kilometers. He is so hot that he can only stick out his tongue and want to drink a big cup of Fat House Happy Water to relieve it.

heat.

"Popsicles, cream, chocolate, egg yolk ice cream, snowman..."

A stooped old lady on the roadside was struggling to push a homemade child stroller, and her old hawking voice was melodious and hoarse.

"Possicles, a dime..."

After the 1990s, most cold drinks were sold in canteens, and world-famous brands such as Keffier, Helox, and Haagen-Dazs have also opened cold drink stores all over the country.

However, there are still some elderly people who, in order to support their families, push these small carts with welded iron bars and sell them along the street, which is a bit of a legacy from the 1980s.

Zhang Jiaqiang was hot and thirsty. When he heard the old man selling popsicles, he immediately rode over, took out a dollar and put it on the old man's popsicle box.

"Auntie, I bought it for one dollar!"

When my wife is at home, she will definitely be reluctant to buy popsicles and cold drinks. This dollar is enough for two people.

When the old lady saw the business, she hurriedly opened the quilt on the ice cream box, revealing the cold popsicles.

"Child, where is your basin?"

Zhang Jiaqiang patted his head and then remembered that these days almost all sellers don’t have plastic bags, and buyers instead prepare their own items for storage.

When buying steamed buns, they usually come in bags sewn with cloth. When buying vegetables, they usually come in baskets or nylon bags. When buying ice cream, you always bring them in a basin.

This place is not far from home, Zhang Jiaqiang said, "Auntie, can you wait for me for two minutes? I'll go home and get my things!"

The old lady laughed and said, "It's okay, go ahead, kid. I'll wait for you to come back. Hey, take your money..."

The integrity of people these days is much higher than that of later generations. Zhang Jiaqiang waved his hand, turned the handlebars and rode toward the dormitory gate.

A little girl of three or four years old was running out of the dormitory door. She was holding a shiny steel ball high in her hand and happily ran to the ice cream truck.

"Grandma, grandma, I want a popsicle, some cream..."

At this moment, a large truck honked its horn and rushed down the street like a strong wind.

The little girl was about to be caught in the wheel.

Zhang Jiaqiang kicked the ball hard, reached out to fish for the moon from the bottom of the sea, and grabbed the little girl in his hand.

The big truck almost brushed the hem of his clothes as it passed by without losing any speed.

Zhang Jiaqiang glanced at the large truck that disappeared in the dust, shook his head secretly and sighed.

This kind of thing would never have happened twenty years later when surveillance was everywhere, but it was commonplace in the 1980s and 1990s.

Preferring death to injury has become an unspoken rule, and the truth hidden in it makes people shudder.

"Zhang Jiaqiang, put her down. If you dare to take revenge on my daughter, I will kill you!"

A guy with a bandage on his head ran out of the dormitory door like a madman and snatched the crying girl away from Zhang Jiaqiang.

This guy is none other than Zhou Dahei!

He held the little girl tightly in his arms with one hand, his eyes filled with crazy blood, reached out and grabbed Zhang Jiaqiang's handlebars, and roared.

"The surnamed Zhang is the one who deserves the blame. If you want revenge, just take revenge on me. If you dare to touch a hair of my daughter's head, I won't forgive you even if I'm a ghost!"

Unexpectedly, it was his daughter who was saved!

Zhang Jiaqiang didn't bother to explain to this guy, he glared and growled, "I'm not that mean, let go, in front of the children, I won't argue with you, just go ahead and do whatever you have to do!"

Zhou Dahei put his daughter behind him, grabbed Zhang Jiaqiang's handlebars with both hands, and roared with fire in his eyes.
Chapter completed!