Chapter 14

Before the Internet age, the latest progress of a certain research has been a problem for many researchers. Especially those minority topics, in addition to the communication between researchers, can only be solved by searching through the newly published journals.

In the 1980s, the problem became more difficult. Because China has been closed to the outside world for more than ten years and has been practising hard in politics, it is no longer possible to find anything new in foreign countries other than Marx's theory by going through the journals published in the latest few months. On the other hand, it is difficult to confirm whether there are related studies in China before because of the researchers' lack of files and data.

Therefore, when Yang Rui said that he saw a journal and had a way to solve the problem of canning, Duan Hua believed it.

However, Yang Rui is only a high school student after all, Duan Hua just slightly straightened his waist, calm and serious asked: "which four methods, you say."

Rui's mother and father also look at their son curiously.

"The first way is to increase the strength of the can itself. In my impression, it seems that I can get a better tinplate?" Yang Rui deliberately said something vague.

Duan Hua is not surprised to nod: "you can use 90p tinplate for 80p tinplate. You can also use imported tinplate. Japan has the best tuning system, which is more powerful than the Americans. However, small factories like ours have no foreign exchange. "

When it comes to the last sentence, Duan Hua puts up his glass with a little self mockery.

82 Foreign exchange is expensive in 2000. When you travel to the central government, you have to be careful. County level organizations can't think of using foreign exchange.

Yang Feng knew more. He also picked up his glass, touched him on his own initiative, and said, "does your factory export white meat to Europe? It's said that they're selling well. There's always some foreign exchange left. "

"Retention is also reserved for the general plant. How can our branch plants get the indicators. It's impossible to change the domestic 90p. It's not a skill to spend more money. Besides, the domestic tinplate is also very nervous. " Duan Hua said naturally that Xibao meat factory was established in the 1960s, and now it is a series of meat factories integrating slaughtering, cold storage and transportation, cooked meat products, etc. The cannery is newly built, with good revenue and a small generation.

This kind of competition for power and profit in the big family of state-owned enterprises is not suitable for outsiders.

Yang Rui also doesn't think that better materials can solve the problem. In terms of the domestic economic situation, new product development is based on low cost, not to mention the revision of old products.

Like when I was a graduate student, in the face of enterprise customers, Yang Rui said with a smile: "then I will continue to say the second point."

"Oh, you say." Duan Hua, because of Yang Rui's change, has become more and more serious.

"The second point is the temperature of the soup. By controlling the temperature, the pressure difference can be released slowly. According to the data, it should be more than 80 degrees. It is estimated that some tests will be carried out to find out what the situation is Yang Rui could not read the data directly, so he tried to narrow the range.

However, different production lines and equipment, the applicable temperature is naturally different, always need factory debugging. The significance of the factory's after-sales service and the factory's technical section also lies in this.

Duan Hua scratched his head: "it's a bit difficult to test which kind of temperature is better... There is a lack of talents in the factory. The main factory is slaughtering and segmentation, and there are no suitable candidates."

Xibao cannery is a new factory of Xibao meat factory, which means that there are not many old people supporting it, and the college students after the college entrance examination can't get it. Duan Hua's is the highest level.

Therefore, even if an ordinary graduate student can do a simple comparative test, Xibao cannery is a rat pulling a tortoise and has no place to start.

Yang Rui shook his head and said: "the third way is to rely on pre cooking and canning adjustment to solve the problem of protruding angle as much as possible. This should be combined with other ways. Sufficient pre cooking, reasonable canning weight, etc

"We do this, but it's really difficult to determine the time of precooking and the degree of canning." Duan Hua has entered the state completely at this time, and really began to explore the technology.

"The pre cooking time and the degree of canning can continue to be adjusted, at least within a certain range. It should be connected with the temperature of the soup to do some tests."

"Yes... I'll think about it when I get back."

When Yang Rui's parents look left and right, they always feel that there is something wrong with the scene in front of them.

Yang Ruiting was very satisfied. He took a bite of the dish and said with a smile, "the fourth way is the best way to improve the rate of good products. Before that, I would like to ask, is the sterilization pot used in the factory for sterilization?"

"Yes, gt7c3. We also call it sterilizer."

"Vertical?"

"Yes. Just packed cans are put in, sterilized at high temperature, then cooled by water spray, and finally packed and transported away. " My uncle doesn't mean to take the exam now. He's just discussing technology. He has been convinced that Yang Rui has really read the relevant papers.Yang Rui pretended to be a memory, thought for a while, and said: "is this type of sterilizer cooled by spraying water from the bottom up?"

"Well? Yes, it is

Yang Rui suddenly realized: "that's right. In order to significantly improve the yield, we have to replace the vertical sterilization tank with the horizontal sterilization tank."

"Why?"

"Only the answers are given in the book, but they are not particularly detailed. I thought about it myself, do you think so..." Yang Rui put on a studious middle school student's appearance and said: "if you spray water from below, the water will accumulate under, and the cans below will certainly cool first, and the cans above will cool later, right? What's more, with more water accumulated below, the buoyancy will gradually increase, and the cans on the top may float up. "

Duan Hua, after all, has been working on the spot for many years, nodding as he thought: "yes, the cooling below is fast, but the cooling above is slow. It's really possible that the cans on the top will float. In this way, the cans on the top will not be completely immersed in the cooling water and will cool more slowly. "

Yang Rui continued to go deep and said: "I remember the book said that different temperatures can also cause pressure difference..."

"Well..."

"The pressure difference is the main culprit for the angle protrusion, so the vertical sterilization cylinder itself will cause the angle protrusion, so it should be replaced." Yang Rui pushed forward slowly, and he had been determined for a long time.

Vertical sterilizer can not only cause protrusion, but also is one of the main reasons, which is the conclusion of more than ten related papers.

At present, Cannery has only 75% yield, which is closely related to this. Only by changing the way of sterilization and cooling, and then with other small means, it is possible to achieve a higher yield.

Simple but rigorous reasoning, to listen to Duan Hua, motionless thought.

Rui's mother didn't know the technology. Seeing him like this, she thought Yang Rui had said something wrong. She said with a smile, "brother, don't think so much. Eat something first. The food is cold."

Duan Hua bowed his head and said nothing.

The courtyard fell into inexplicable silence, only the rustle of the breeze caressing the pear tree, vaguely, it seems that there is still a long dark fragrance.

"Pop."

Duan Hua slapped his hand on his thigh and grinned in pain. However, he stood up and said, "I have to go back. I'll drink here today."

"Well, what's the matter?" Yang Rui's parents stood up.

"There is a horizontal sterilizer in the third workshop. They can use any kind of sterilizer. I'll try it. It's too late. Let's go first. Let's go first." Duan Hua picked up his briefcase and wanted to touch Yang Rui's head. He stopped for a moment, patted it on his shoulder and said with a smile, "Yang Rui is really grown up. He has helped me a lot. I'll bring you something good next time."

"Is the expert still invited?"

"Please, please do the test." As Duan Hua spoke, he trotted out of the yard and headed for the passenger station.

……