Datang Longya

Chapter 152 Iron Removal
The winter in Chang'an is also very cold, and it is not acceptable to live in a thatched cottage all the time. Sun Simiao's request must be rejected.

Of course, it's not a positive rejection, that would be too embarrassing for the old grandson, as long as the thatched roof is not built and the cement house is built.

The greatest convenience of the "high-ranking person" is that you only need to use your brain and don't need to use your hands. After the heating experiment, the result is that it can be used completely, but occasionally there will be water dripping from a few connected places.However, compared with its effect of dispelling cold, this problem is not worth mentioning.

Li Tai and Yan Liben's classes are now mostly self-study classes. These two guys are worried about the craftsmen installing the heater, and they have to keep an eye on them from time to time.

The heating pipes made by the blacksmiths of the Tang Dynasty...how should I put it?It's not very standard. Anyway, Lengfeng is very worried that the heating will leak suddenly during class, and then everyone can take a hot bath.

Therefore, the heating pipes and water tanks in the classrooms of the Academy of Arts are equipped with wooden box shells. Although it is troublesome to repair leaks, it is safer after all, isn't it?
The production of glass encountered troubles. Yan Liben tried many times, but failed to produce transparent glass.

Although the fired thing is crystal clear, but the light transmission is very poor, this kind of thing can't be used as glass at all.

This is the biggest difference between fantasy and reality. In later generations, if you want something, just buy it. When buying glass, how could someone ask: "What material is this glass made of?"

Even if you ask, the businessman will probably laugh: "I'm just a glass seller, how do I know what material glass is made of?"

The so-called "scientific research" means science and research. Science and research are equally important. Leng Feng knows the source of glass manufacturing, and the rest is research.

Yan Liben liked the lump of green that he burned out for the first time, so he specially found a carving knife to carve it into a handicraft.Yan Liben has a background in wood carving, and stone carving is not bad, and the carved things look pretty good.

That piece, or that pile of green glass, was carved into a hill by Yan Liben, and placed on Yan Liben's desk. There are strange rocks and trees on it, which are lifelike and sparkle under the sun, which is very valuable. .

Glass is something that exists in the Western Regions. At this time, merchants in the Western Regions called it "Liu Li".

"The broken things burned out of the sand, the world still thinks it is priceless, and I don't know how to evaluate it."

Seeing that Yan Liben stared at his work with fascination and tended to become a glass sculptor, Leng Feng hurriedly pulled him back from his fantasy. It would be nice to be a scientific researcher, why bother to be a glass seller?
Yan Liben put the glass sculpture on the table, sighed and said: "The colored glaze in the Western Regions, that's how it was made, and the tattered ones are not as good-looking as the ones I made, Mr. Yan, I have done many experiments like this, and found these things. The color of the glass is different, do you have any way to reduce its color? As long as it is reduced to transmit light, it will be enough."

Leng Feng raised his chin and thought about it. He had only roughly studied chemistry at the request of his master, and it was not enough to know nothing. So when it came to these technical things, the poor chemistry knowledge It's just not enough.

green?It should be iron. Is it because of the trivalent and tetravalent iron or the reason of ferric oxide and ferric oxide that makes the glass appear green?
Anyway, the method of removing iron should work!As for how to remove iron... It is better to ask a professional!

"Iron should be mixed into the sand and stone used to burn the glass!" Leng Feng looked at Yan Liben and said, "If you have a way to remove the iron, maybe the glass can become more transparent."

"Iron removal?" Yan Liben asked, "How to remove iron?"

Leng Feng smiled bitterly and said, "I'm not a blacksmith, so how do I know how to remove iron? Maybe you should ask the blacksmith who will be your prisoner."

There are many blacksmiths who will serve as supervisors, and Jingleisi, who happens to be not far from the Academy of Arts, has a good skill.

Leng Feng happened to have nothing to do, so after arranging Li Dejian's enrollment, he took Yan Liben to Jinglei Division to find Tiesheng.

Without Leng Feng leading him, Yan Liben would not be able to enter the Jinglei Division.

The defense of Jinglei Division can be said to change three times a day, a small piece of land, almost every corner has at least one pair of eyes staring at it.

The outermost guards are all fully armed Xuanjia soldiers. Anyone who passes the periphery of Jinglei Division, even if Mao has not seen it, must be interrogated before being released.

If it is not a nearby farmer, it will be questioned.If it was someone whose identity was unknown, these Xuanjia soldiers would not even ask any further questions, and would just draw their swords and slash people.Therefore, the surrounding farmers would rather open up a new path than dare to approach Jingleisi any more.

After passing the outermost guards, the inner circle of Jingleisi is the Xuanjia Army soldiers holding wooden spears.

Ever since he remembered that the impact of a weapon would also spark sparks, Zhang Zhongqing immediately ordered the Xuanjia soldiers in the inner circle to replace the wooden weapons.

Tiesheng's site is between the inner and outer rings. A total of more than 100 blacksmiths are making thunder arrow shafts and thunder shells without stopping.

Thunderbolt Arrow and Thunderbolt are very convenient to use, just ignite and shoot or throw them out.After the sound of the gunpowder igniting, a thunderbolt or a thunderbolt is gone.

As for the Thunderbolt Arrow shaft, it is a highly skilled Tiesheng, and the output of making it non-stop in a day is only more than 20. As for the Thunderbolt shell, it is even less.

In particular, Zhang Zhongqing's requirements have always been strict, and the arrow shaft and shell of the Jinglei arrow must be completely in compliance with the specifications, otherwise they must be reworked.

It was because all links complied with these strict requirements that Zhang Zhongqing dared to set the misfire rate of Jinglei Arrow to [-]%, and he still patted his head to guarantee it.

Tie Sheng is now the head blacksmith of the Jinglei Division, and has a sealed sixth-rank official position by the imperial court.

Although he can no longer enter and leave Jinglei Division at will in this life, even if he goes out, he will be followed by people with steel knives, but he has changed from a blacksmith to an official after all.What's more, Jing Leisi does not allow him to go out at will, but it will not prevent him from getting married and having children.

In this day and age, most people don't need to fall in love to get married. If you are rich, famous, or have an official position, you can pick any wife you want, so it's not a big deal for Tie Sheng to be trapped here.

When Tiesheng heard the call, he immediately put down the hammer in his hand and went out to meet Leng Feng.

Although he doesn't know who Leng Feng is, he must be a big shot who can enter and leave Jinglei Division at will. Although he is simple and honest, he is not stupid, so he came out by running.

(End of this chapter)