The next day, the morning of the intensive training, in the afternoon continued to make steel, in two afternoons to smelt all the 3,000 catties of pig iron, the smelted steel weighed about 2,400 catties, the loss of as high as 20 percent. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 info This shows that the impurities in pig iron are still quite high, not much better than those iron ores that have just been mined from the mountains.

Instead, a lot of slag was collected.

Slag is originally a waste, but it has another important role, that is, as a cement admixture, it is mixed with cement in a certain proportion, when it is made into concrete, although the strength in the early stage is not very high, but the age growth is far more than ordinary cement, and the stronger it is later.

After having modern knowledge, Liu Yuanshan knows that the preparation of cement is simpler, it is nothing more than grinding the clay after it is cooked and mixing it with gypsum, which is cement.

At present, there is no manpower to grind clay (equivalent to sintered bricks), so Liu Yuanshan does not think about it so much, and after a period of time to study the steam engine, these things will naturally be launched.

The question now is, what to do with these inferior steels that have been refined?

Liu Yuanshan is not at ease to use them to make various machinery or weapons and firearms, and he does not have that condition.

The so-called first step of the Long March does not mean that a bunch of things come out with a pat on the head, what cannot be achieved is also a lie.

At least Liu Yuanshan knows one thing, at present, no matter what you want to make, there are no corresponding tools. Therefore, the first step at the moment is to use the most primitive method to make the first batch of tools.

This most primitive method is: striking iron!

Hong Zongwei is a blacksmith, and after Liu Yuanshan made overall arrangements, he arranged a new task for him, and also assigned him an assistant, for a lifetime!

The things in Liu Yuanshan's first batch of tasks are not complicated.

There are four hammers of various sizes and models, some weighing ten pounds, some weighing five pounds, some weighing half pounds, and one even smaller.

Two iron tongs, this thing was available in ancient times, but Liu Yuanshan didn't want the kind of tool that was just used to clamp things in ancient times, the kind of pliers he wanted were tools that could roughly change the shape of steel according to the drawings and could be held, rolled or straightened.

Four round steel columns of different diameters, with diameters of one centimeter, two centimeters, three centimeters and five centimeters respectively, the steel columns are like the round steel of later generations, to ensure that the cross-section is as round as possible, but also to ensure that it is straight. Liu Yuanshan knew that this was difficult, but he believed in the wisdom of the ancients and would definitely be able to figure it out.

There is no difficulty in this one, one large and one small, but Liu Yuanshan also requires that the forging table is not an immutable platform, but requires that there must be a standard plane on it, as well as a standard semi-circular groove with a semi-circular protrusion.

Some of the little things left are: files, awls, scrapers, etc. These things could also be bought in ancient times, but because of the materials, Liu Yuanshan preferred to make them himself.

In addition to the above things, Liu Yuanshan also asked Hong Zongwei to make another thing: shaking the winch! This is the most primitive version of the lathe, which is about a tool that can be moved slowly by shaking, and its main role is similar to a drill bit, which is used to drill holes, drill holes, etc.

As for the rest, what Liu Yuanshan wants to make the most for him at present are screws and steel pipes, but unfortunately, don't look at these things are quite common, but it is impossible to make them immediately.

After all these tools are made, they should be worth half of the original lathe, and the reason why I say half is because the most important thing that has not been machined is the cutter.

The cutter can be made of high-carbon steel, Liu Yuanshan pondered that the carbon content of the steel made this time is too high, and it is better to make a cutter in the future, but the cutter must be quenched and tempered after pouring to meet the requirements of hardness and wear resistance, which is not difficult, so Liu Yuanshan did not put it on the agenda for the first time.

After the task comes out, the next step is to complete, which needs to be done step by step, don't look at these things are very simple, but if you use the most primitive tools to do it, it is really difficult.

Hong Zongwei is a blacksmith with a very smart brain, and at the beginning of the work, he first made four hammers according to Liu Yuanshan's requirements, and the specifications and weights were also completed according to the requirements without any problems.

After the hammer was made, he used the knowledge he had learned before to tinker for several days to make two iron tongs and an awl. Files and other pounded out, this is the most primitive tool.

But what to do next, he didn't pay attention.

The round steel is not difficult, but according to Liu Yuanshan's standards, not only should the circular section be standardized, but also a round steel with a consistent thickness and absolute straightness, which is the meaning of some strong people.

As for shaking the winch, one of the most important tools needed is the straight round steel as the main shaft, and the straight round steel can't be made, and the shaking winch is impossible to talk about.

For this reason, Hong Zongwei thought about it left and right, and even thought of a way together for the rest of his life, but after thinking for many days, he found that there was no way at all, so he could only run over to find Liu Yuanshan to solve it.

Liu Yuanshan is not a blacksmith, he naturally can't solve it, but he has a way.

Find Second Uncle Mao and ask him to go to Fang County, this time the task is to help buy a few skilled blacksmiths to come over, if Fang County does not have one, go to Xiangyang. Now it is the time when the green and yellow are not accepted, and the refugees in Shaanxi and Henan are in disaster, and there are always some old blacksmiths among those who hide in Xiangyang Mansion.

In addition, after this period of time, Liu Yuanshan found that it was a bit difficult to rely on the current dozen or so people to open up the situation, and he still needed a lot of helpers, so he asked Second Uncle Mao to go into the city this time to buy as many people as possible, and it was best to get ten or twenty people back.

Of course, he couldn't let Second Uncle Mao run away in vain, and Liu Yuanshan promised him a condition that he couldn't refuse, that is: he would buy all the charcoal burned by Second Uncle Mao after tonight, and the money from the previously agreed white charcoal agreement would no longer be withdrawn.

Second Uncle Mao really wanted to help Liu Yuanshan, and second, he saw that he would not need to pull charcoal to Xiangyang Mansion in the future, so he agreed and set off on the same day.

Liu Yuanshan himself can't put all his thoughts on steel, and now that spring is coming, he has other more important things to do!

For example, composting, such as selecting seeds and raising seedlings.

There are more people in the family now, and there will be more and more in the future, so you can't rely on the supply of food, you naturally have to farm if you have land, after all, there are so many idle people at home.

He planned to plant 100 acres of paddy fields with traditional crops, and 30 acres of dry land was originally given to Lao Gan's family in the temple, and this year Liu Yuanshan planned to take it back for him and plant it himself.