Outside the shelter!

Zhao Yunxiang took Han Qianluo to a place on the west side of the bamboo forest!

Here is a stone wall, and the stone texture on the stone wall is basalt!

"These stones, are you going to use them as grinding discs?" Han Qianluo squatted on the ground, looking at the huge stones that fell from the stone wall.

The stones look very hard, unlike the granite surrounding the shelter, because the stones have been eroded by rain and sea water for a long time, and there are clear fractures, like steps.

However, the huge basalt in front of you is a complete whole, and this somewhat boxy stone is as much as 300 catties.

"Yes, you may not believe it when you say it!" Zhao Yunxiang sighed slightly, squinted his eyes at the sky, and then sighed.

Seeing this, Han Qianluo pulled his mouth, knowing that Lao Zhao was going to recall again, whenever Zhao Yunxiang showed such a look, he would have to recall!

"Tell me your story...... Han Qianluo raised his eyebrows and pointed in the direction of the dense forest where the monkey was, "I'm going to make wine in a while, lychee wine." ”

"My grandfather was a stonemason, and because his family was very poor, he often made grinding discs for people, after all, he had to support my father, three brothers and one aunt. Zhao Yunxiang said, "Because of making grinding discs for people for a long time, I got western pneumonia, which eventually led to pulmonary fibrosis, and I died of illness just a few years after retirement, and I was tortured for a long time......

"......" Han Qianluo looked at the hammer and the chisel that had just been made with the valve, and wanted to persuade, "Otherwise, let's stop making grinding discs, it's not good for your health." ”

"It's okay, I have a shield!" Zhao Yunxiang knew that a large amount of stone powder would appear in the process of digging stones, because there was no air gun to blow, so he could only blow with his mouth, and it was inevitable that the stone powder would be sucked into his lungs in the process.

Of course, it is not once or twice that you will get western pneumonia, which is an occupational disease for many years.

The small chisel is made of 2 valves, and the valve is like a horn, and it is best to use it as a chisel.

And after simple heat treatment, forging, quenching, the hardness of the small chisel is very high.

However, after all, it is basalt, and the hardness of this stone is no joke, and Zhao Yunxiang knows that it will never be possible with two valves.

So, the stone can only be shipped back!

Although the stone was huge, it didn't take long to roll back to the shelter using the principle of leverage!

The work has to be carried out in the shelter, and who knows if the mermen will suddenly attack!

Although it is known that those guys are afraid of the sun, do not like to haunt during the day, and usually do not cross the reef even at night, there are exceptions, if those guys run, they will kill the twins in minutes.

"Ding...... Dangdang...... "The huge basalt was vulnerable under Zhao Yunxiang's hammer and chisel, and a large number of stone chips flew all over the sky.

However, the steel valve lost its hardness not long after it was chiseled.

After all, it is a hard stone, and such a digging method is naturally unbearable!

"Han Qianluo, you go and burn this red, and then smash it with a hammer, and the quenching must be done well!" Zhao Yunxiang handed over a valve whose hardness disappeared and the chisel tip turned into a round head to Han Qianluo.

She knows how to deal with it and can do it well in just a few moments!

"Okay, I see!" Han Qianluo immediately came to the mud stove and opened the vent behind the mud stove, as soon as the vent was opened, the flame instantly became larger, but this time the sea breeze was not strong, and the flame was not as strong as before.

Therefore, heat treatment takes a while......

Zhao Yunxiang made 2 chisels, probably because of the texture and quenching degree, the hardness of the two chisels is completely different, this time I have been digging on the basalt for a long time, and there is no problem with the chisel. E-book house

"Sure enough, it's still not professional enough!" Zhao Yunxiang finished digging the reverse side of the grinding disc on one side, and then continued to process the other side.

The millstone was invented by our ancestors to crush grain through rocks full of ravines, which is very suitable for making pancakes or something.

In the beginning, the ancients made a pit in the stone, then threw the harvested grain into the pit and smashed it with a stone, which often resulted in a lot of stone particles.

After all, this kind of impact behavior can easily cause the stone that is not hard to crack slightly, and it is normal for impurities to appear in the stone.

However, stones are not easy to be excreted from the body, and it is easy to get stones, which are now easy to deal with, and only need to be broken by a machine for minor cases, and surgical removal is required for severe cases.

Stone mills were born in the Jin Dynasty!

The shadow of the stone mill can still be seen today, most of which are collected, and now the grain processing is mechanized.

After more than half an hour, the stone mill was completed!

Zhao Yunxiang stacked two discs on top of each other to form a stone mill, and deliberately tested them with some granular pottery fragments.

"Isn't this going to be used to crush grain or crush bamboo chips?" Han Qianluo was a little puzzled after seeing Zhao Yunxiang's operation, "Why do you want to crush pottery fragments, these are all soil, right?"

"That's right!" Zhao Yunxiang explained, "We failed to fire pottery last time, for several reasons, the first is because the pottery blank is wet and we can't wait for the shade to dry, and second, because the quality of the clay is not enough, if you add some pottery powder, the effect will be greatly improved." ”

"And this kind of operation?" Han Qianluo was considered to have a long experience, but he didn't expect Zhao Yunxiang to know so much.

"Hmm!" Zhao Yunxiang quickly pushed the grinding plate, and Han Qianluo methodically added pottery fragments, and finally got a lot of reddish-brown powder, which was pottery powder.

After mixing with the pottery, it can effectively prevent the pottery from cracking during the firing process.

"Lin Qingyu ......" Han Qianluo gathered the pottery powder together, wrapped it in leaves, and gave it to the twins.

At this moment, the twins had dug out a lot of reddish-brown clay from the clay pit.

"Teacher Han, what's wrong?" Lin Qingyu wiped the sweat from his forehead and asked a little out of breath.

Zhao Yunxiang said that it is not easy to crack when the pottery is added to this. Han Qianluo put the pottery powder on the ground.

Next to the mud pit, there were several stone slabs, all of which had been obtained from the chest, the ones about the island captain's sister-in-law.

It's useless now, just use it to put clay or something, because it's very flat and it's not easy to mix with sand.

Soon, several clay pots were ready, and Zhao Yunxiang made a very special container by himself, like a thickened jar, according to Zhao Yunxiang, this one was used to smelt gold!

The wet clay pot clay was carefully placed in the kiln, and now it is time to start ignition, and the heating of the flame will gradually carry away the moisture from the mud.

The production of this thing can be regarded as omitting a shade-drying process, for fear of cracks.

Kiln ignition, seal the kiln!

Zhao Yunxiang used seawater to rinse the pottery powder in the stone mill!

"What about the bamboo that you let you dry, how is it now?" Zhao Yunxiang is ready to make bamboo pulp, and the first step in making bamboo pulp is to crush the bamboo and make it into powder as much as possible.

However, dried bamboo has very low toughness, is very brittle, and is easy to be destroyed, just grind for a while, it can become sawdust, and after becoming sawdust, you only need to add a chemical that is found in the forest, you can make bamboo pulp, and then make toilet paper!