"Teacher, I'm fine, nothing at all, oh yes, the shell of the steam engine has been finished today. Pen%Fun%Pavilion www.biquge.info do you want to go and see? Yao Huo hurriedly glared, as if to tell Yao Ran that there was nothing wrong with his eyes.

Yao Huo was also really afraid of Hua Tuo, and last time he discussed with him what the bones on his body looked like. Who would have thought that Hua Tuo would directly hold a book of human anatomy drawn by Yao Ran, explain it to Yao Huo, just talk about it, and move his hands and feet on Yao Huo's body, pointing and muttering, what kind of bone is here, what kind of bone is there. Here's what jerky is for. Cut this place, where you can't move.

Let Hua Tuo babble, and Yao Huo trembled in his heart. In the end, he was so frightened that he fled, which made Yao Huo want to run away when he saw Hua Tuo for several days.

"If you have nothing to do, get out of here, don't get in the way of my eyes. You're both tight-skinned, aren't you? Yao Ran was a little angry in her heart, how did her originally good little wife become a schoolgirl.

Yao Ran took Hou Yue and Hou Yun's brothers and sisters back to the blast furnace camp, because there was still a lot of work to be arranged today. The individual parts of the steam engine and steam locomotive need to be molded and then fired and forged.

There is also a very important thing that Yao Ran needs to make personally, which was originally a sharp weapon for the traverser, and 'glass' Of course, glass does not seem to be of much use in primitive society. I thought that everyone was in need of food. Of course, I am also full of curiosity and liking for shiny things.

However, firing glass requires a lot of preparation, and the main materials require a lot of screening work, and Yao Ran is not preparing to produce a large number of glass products, because ceramics or other containers can already meet the current use of these things.

The main raw material of glass is in the retinal system, Yao Ran has already seen that there are quartz sand, soda ash, limestone, feldspar and other quartz sand, which is actually the main component of sand, which can be found on the river beach or the lake beach that has been washed for a long time.

As for the soda ash, Yao Ran still needs to find it, if you really can't find it, you can only use it, the grass ash is done, and the limestone doesn't have to be found, Yao Ran has a limestone vein, in fact, at this time, Yao Ran's two deposits are not so sufficient, and in the future, the blast furnace will not be enough to produce more steel to meet the demand for iron.

In terms of the road alone, the current steel production is already somewhat stretched. Not to mention, trains to be produced in the future, or steamships.

And the last feldspar is actually a very common stone, as long as you find some samples, and then have people carry them to some dry sand and gravel common rivers to look for a few days, it is not a big problem.

The work of preparing the materials went on for three days, and after Yao Ran arranged the work of finding these materials, he recruited a few students studying architecture in the family college, and gave them drawings, as well as the required materials, and the number of materials to be prepared. They were ordered to prepare materials for the construction of the second blast furnace.

Now that coal mines have been discovered in the Great Snow Mountain, and there is a steam engine that can provide energy stably, whether it is a conveyor belt or a blower, all the transportation forces have been solved, so in fact, it is okay not to build the blast furnace by the river, but Yao Ran considered that in order to centralize management and facilitate transportation, Yao Ran still prepared to build this blast furnace in the blast furnace fortress.

And Yao Ran has been sitting in the alpaca cart every day for the past few days, and there is Yao Ran's female student Hou Yun in the same ride, and at this moment, Hou Yun is in disheveled clothes and is laughing with Yao Ran in the alpaca cart, and the happy laughter spreads to the two cars in front and behind. Of course, primitive people don't think this is anything, but for Yao Ran to say that he is looking for alkali ore, it is very unreliable.

But how could they know how Yao Ran was looking for things, Yao Ran knew what was outside the car without opening the window, and the saber-toothed tiger who saw this strange vehicle in the distance and didn't dare to approach. They all saw it clearly in Yao Ran's eyes.

It's a pity that Yao Ran wandered around for several days, but he didn't find the alkali ore he needed, not even the saline-alkali land, so he had no choice but to go back and replace it with plant ash. In this way, the visibility of the glass will be more unclear. It can only be done by making thin glass, so it is necessary to consider the problem of compression. It seems that after it is done, it needs to be pressed with high pressure before it can be used.

In the end, Yao Ran, who had been wandering around outside for three days, was even more practical, the fact that prospecting was the reason for the minerals, and the fact that the bubble girl was real, but even so, who would dare to say that Yao Ran was not? Of course no one will say.

After returning to the blast furnace camp, Yao Ran crushed the quartz sand feldspar collected by everyone accordingly, and then used the grinding disc to grind it into powder. Then all these raw materials are dried and dried, in fact, after this step, an iron removal treatment should be carried out, but Yao Ran has neither manganese ore, nor can he make it, so he cannot carry out the iron tapping process, in this case, the glass will be green, not transparent glass. But this can't be helped, who makes the technology and materials not up to standard. It's good to be able to make glass.

The powder of quartz sand feldspar limestone is mixed in proportion. Then you can start preparing for melting. Of course, the calcination cannot be directly reduced with carbon fire, otherwise the more it is burned, the darker the color will be, and finally it is very likely to be fried into the color of obsidian. It became volcanic glass.

Therefore, the batch for making glass is heated at a high temperature in a huge crucible tong of Yao Ran's characteristics, and the temperature is maintained at a temperature of more than 1,500 degrees. The result is a homogeneous, bubble-free, liquid glass of these materials.

The liquid glass in the crucible pliers was then poured into the iron mold that Yao Ran had prepared. After leaving the flame, the temperature of the liquid glass decreases. After slowly approaching solidification, after pouring it into the iron vessel, the laminating thing that had been prepared for a long time was pressurized before the glass was completely condensed, and the density of the glass was increased so that it could resist the pressure inside the pressure gauge.

Finally, after the temperature completely cooled down, Yao Ran stopped the work of several workers, walked closer, put on cotton gloves and opened the mold stuck on the press, and took out a green glass sheet with a thickness of only 0.6 centimeters. The admiration for Yao Ran is also deepening.