After all, the household oil press is inefficient, and for a large number of presses, large machines must be used, and the main energy of the peak is still used in the design of this set of machines. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

In principle, the two are the same, but because of the large volume, large machines are much more complex.

Power was the key to the design, and he didn't want to do too much manpower to drive it.

In the end, Gao Feng decided to use the grinding disc drive method, the biggest advantage of which is that it can use the power of livestock, that is, without livestock, it can be driven by two people.

This method is not grinding flour, it is just a way to provide power, by constantly rotating the afterburner, so as to squeeze the oil, to achieve the purpose of oil.

Easier said than done, especially when the materials and production are not in hand, to be simple and reliable, is not a matter of words, and in the end the design took more than ten days to complete.

asked people to send the oil press to Zhang Bairen, and Gao Feng also specially told Zhang Bairen that Zhang Bairen could produce soybean oil for sale, so that he would have another way to make money.

……

On this day, Gao Youxian said: "Feng'er, the pine resin sample you purchased has been shipped, do you want to take a look?" ”

When Gao Feng heard this, he hurriedly followed, and after inspecting it, he said, "It's this kind of thing, can you order it in large quantities?" ”

Gao Youxian replied: "It is possible to order in large quantities, but it may take a long time. ”

"That's it, you try to order as much as you can first, and then you need to talk about it later." Gao Feng said.

"Okay." Gao Youxian agreed and left.

Gao Feng looked at the pine resin, and his heart was very happy.

Others don't know what it's for, he knows it too well, and he's in dire need of it.

Pine resin, which is actually the pine sap that flows from the cutting of pine trees, is a natural resin.

Pine resin can be heated to refine rosin, which is a good thing.

It is steamed with soda ash or caustic soda and can be made into rosin soap. Rosin soap has a stronger decontamination ability, it is easily soluble in water, easy to foam, and it is not easy to crack and rancid.

If this function can be ignored, then rosin can be used to make paper, synthetic rubber, lacquer and plastic, etc., which is a powerful function.

And what Gao Feng wants to do most at the moment is plastic.

Plastics are also known as resins, and their main components are also resins. The process of making plastic is very simple, that is, adding plasticizer to the resin, and after heating and cooling, the plastic comes out. Of course, if you want it to have different functions, you can also add different additives, such as stabilizers, lubricants, reflectors, pigments, etc., depending on the need.

There are many substances that can be used as plasticizers, but most of them need to be extracted from petroleum, and in the absence of oil, Gao Feng has set his sights on a processable plasticizer, that is, epoxy soybean oil.

This is a non-toxic plasticizer, produced by the epoxy reaction of soybean oil, although the intermediate process is complicated, and it requires the use of sulfuric acid, acetic acid and other chemical reagents, but Gao Feng knows a lot, so he does not take it seriously, he is now waiting for the glass container to be made for experiments.

Rosin is a kind of resin, with which it is no longer a problem to make plastic, and Gao Feng wants to process plastic film and plastic tubes, both of which he urgently needs.

As for the PVC pipe, he didn't dare to think about it now, maybe it would not be too late to wait for the chemical laboratory to improve.

Just when Gao Feng was thinking about some details of making plastics, he saw Zheng Ci hurrying over with a piece of paper.

"Shopkeeper Zheng, what are they going to do this time?" Gao Feng asked with a smile as soon as they met.

Zheng Ci's expression was obviously someone who had a problem, and he knew that it could not be someone else except Zhao Nian.

Zhao Niangang suffered a loss, and he definitely refused to give up, and it was completely expected that another problem would arise.

"Childe, how do you know that someone is going to do something again?" Zheng Ci asked in surprise.

"You've got it all written on your face, and you can't see it yet?" Gao Feng smiled slightly.

"Written on the face? No, I wrote it on paper. Zheng Ci was confused, he took out the piece of paper and looked at it, and there was not a lot of words on it.

"Okay, I'm bad." Gao Feng was convinced of Zheng Ci.

After taking the note, Gao Feng actually laughed out loud: "Haha, you are really going to choose the opportunity to die, what do I do, what do you want, this pace is really timely." ”

"Childe, I just sent it over, but I didn't want to die!" Zheng Ci said bitterly.

"It's not about you, it's about this person." Gao Feng pointed to the paper and said. He was also a little puzzled, just such an incident actually lowered Zheng Ci's IQ, was he so nervous?

Zheng Ci suddenly asked, "Childe, do you really have a way to deal with it?" ”

"That's nature." Gao Feng said proudly, "You go and tell them that we have taken this job." ”

"Childe, you have to see clearly, they want winter vegetables in summer, and summer vegetables in winter, and they are fresh." Zheng Ci kindly reminded him, he was afraid that Gao Feng would be bad.

"Isn't it an out-of-season crop? What's so hard about that? You go and negotiate the price with them. Gao Feng said confidently.

"Huh?" Zheng Ci was really surprised, Gao Feng even came up with a new term, it seems that there is no difference, and he can do it, but is it so magical?

In his opinion, it is still possible to have winter vegetables in the summer, and it is a big deal to dig a cellar and put some ice cubes in it, and no matter what, it is still possible to save some of them until the summer. But it's troublesome to want summer in winter, and you can't store it at all, so how can you do it if you can't store it?

Zheng Ci couldn't figure it out and didn't want to do it, anyway, he couldn't understand what Gao Feng did, so it was better to follow orders.

"How is Childe going to ask for a price?" Zheng Ci asked.

Gao Feng smiled siniestly and said: "This time we can't be too dark, let's just calculate it according to the usual money of one catty, but we have to add a condition, the purchase amount is at least more than 10,000 catties, otherwise we won't do it." ”

After thinking about it, he said, "By the way, let's start this summer." ”

It was another share of 10,000 taels, and Zheng Ci wondered if Gao Feng only recognized 10,000 taels.

Of course, this is not the most difficult for him to accept, the most difficult to accept is Gao Feng's statement, 'It can't be too dark, always a pound'.

Isn't this black? It's so dark that he went to his grandmother's house, he has never heard of such expensive vegetables, and he can buy more than a dozen catties of meat, but this money can only eat one pound of vegetables, is a fool to do this?

"What if he doesn't?" Zheng Ci asked.

"Don't worry, he'll do it." Gao Feng comforted, "It's just that you should pay attention when you speak, you must blow it up, so that he feels that what you say is false, the more this is the case, the more they will place an order, and the rules are still the old rules, first collect half of the deposit." ”

Zheng Ci was skeptical of Gao Feng's words, but still agreed to come down and leave.