Chapter 783

Hearing ou Tiexin's invitation, Yan Liqiang smiled and readily agreed, "ha ha, that's what I mean. Even if Lord Ou doesn't say, I also want to see it. Is the water lighter workshop in front?"

Ou Tiexin pointed to the front, "the workshop for making this water lighter is right in front. Take a few more steps!"

"Hahaha, Li Qiang, when I heard that you and master Zhang had made the water lighter, iron core sent people all the way from Pingxi county to buy three water lighter and entrusted the escort agency to transport them back. As soon as they came back, they took a bunch of craftsmen to dismantle the water lighter and study it all over and began to imitate it. Iron core was full of praise for the water lighter!" Luo Yutian also said with a smile, and then looked at Ou Tiexin. "If you have any problems this time, you can ask Liqiang for advice this time. This is a rare opportunity. Even if you want to ask Liqiang for guidance, you may not be able to move!"

"Hahaha, brother Luo, you're welcome. I'm here today to learn more!"

Luo Yutian pointed to Yan Liqiang, "modest, Liqiang, you are modest again!"

Yan Li forced a smile

"I have a question to ask Lord Yan. I heard that the water lighter was invented by adults together with Zhang yourong, the first mechanism master of Lingshan sect. I don't know how adults thought of inventing this thing?" Ou Tiexin asked. When he asked, all the accompanying craftsmen showed a look of listening. Because of this question, they were also very curious. Today, Tiangong master came to the craftsman city in person, so they wanted to listen.

"At that time, brother Zhang personally made some gadgets and took them out to discuss with me. He wanted to make it work without manpower. We discussed together. Once, when we were cooking tea, we saw a boiling teapot with its lid fluttering up and down under the impact of water vapor, so we got inspiration, Found a way to push things to run endlessly with the power of water and fire! "

"Admire, admire, I didn't expect that such a sharp weapon as the water lighter was actually drunk out of tea!" Ou Tiexin and Yigan craftsmen listened and looked at Yan Liqiang with amazing eyes. If Yan Liqiang didn't say it, they wouldn't think that the water lighter was invented by two Da Neng when they saw the teapot boiling. The cow man was indeed a cow man.

"To be a craftsman, you always follow the way of learning from things. You should learn from things, observe all things and work together to benefit the world and remain immortal. Don't despise your skills!"

Hearing Yan Liqiang's words, ou Tiexin and a group of craftsmen were shocked. They felt that these words had infinite charm and could be used by craftsmen for life. Even Luo Yutian couldn't help praising them again, "Li Qiang said well!"

The party said, before walking for a while, they came to a large workshop covering an area of dozens of mu. In the workshop of making water lighter in the craftsman's city, there were two large chimneys, which were emitting rolling nongyang. Under the chimney, there was an iron melting stove, hot air rolling and molten iron flowing

When they came, a group of craftsmen in the water lighter workshop were busy. A man with a craftsman's head was sweating and ran over to salute Luo Yutian, Yan Liqiang and Ou Tiexin. Then he took them on a tour.

Under the leadership of the craftsman, the people went to the workshop and just saw a group of craftsmen busy. Several key parts of the water lighter are cast, so the most important process in the workshop is casting.

"Lord ou, I think the water lighter workshop has just been expanded?" Yan Liqiang watched as he walked. There was a very primary flow production mode in the workshop. However, when Yan Liqiang glanced at it, he could still see that the iron melting furnace and the sand boxes were very new. As for the casting process, it didn't seem to be different from his own manufacturing Bureau, but in fact, in such a casting process, Some subtle differences are enough to have a huge impact.

"My Lord can see that there are not many artifacts to be cast in the craftsman city in the past, so the foundry workshop is not large, but to make water lighter, the previous foundry workshop is not enough and must be expanded. The workshop in front of us is newly expanded!" As ou Tiexin spoke, he looked at Yan Liqiang and said directly, "although we also produce water lighters here, the water lighters we made according to the appearance of the water cargo machines of the adult's manufacturing bureau are not as easy to use as the water lighters of the adult's manufacturing Bureau, and there are often problems..."

"Do you often have sand holes in the castings you pour?" Yan Liqiang said casually.

"Ah, sir, can you see?" Ou Tiexin and Yigan looked at Yan Liqiang in surprise. Everyone didn't expect that Yan Liqiang just came here to have a look and suddenly found the problem. "There are too many problems here because there are so many forged things. Only one or two of the ten pieces can be used, so the efficiency is low and the cost is countless. It's really troublesome, Lord Luo rewarded thousands of liang of gold to find a solution, and no one has been able to solve it... "

"We're cleaning the sand mold over there. Let's go and have a look..." Yan Liqiang said, and came to the place where several craftsmen were dismantling the sand box in the workshop, watching those craftsmen cleaning the sand mold outside the casting.

As the sand mold is cleaned, the casting under the sand mold also reveals its original face. This casting is the most key cylinder part in the water lighter. Such parts can only be formed by casting, not by knocking.

Yan Liqiang squatted down and looked. With the naked eye, he could see a lot of sand holes on the surface of the cleaned cylinder block, which greatly affected the quality of the cylinder block. He grabbed a cleaned sand mold with his hand, rubbed it in his hand, and then stood up. The manufacturing bureau also encountered such problems at the beginning, However, it was later solved by Yan Liqiang relying on the strong knowledge reserve ability in his memory.

It is also a sad place of the Han Empire. The casting process is not complicated. The sand casting process has existed for a long time. In addition to this process, there are more complex cavity wax melting casting methods. However, these casting processes have not been used to improve production efficiency for a long time, It is used to cast all kinds of exquisite ritual vessels, such as tripods, clocks and funerary objects. These things are cast in copper or silver. In short, they are used for dignitaries, fish, rich families and families to enjoy and show their identity.

The iron and steel artifacts forged by casting, which can improve the production efficiency of the whole society, are very few. Accordingly, casting becomes forging. Finally, we can only rely on blacksmiths to create something. The productivity of the whole society has not been improved for a long time, and the casting process has stagnated for a long time. People who really understand iron and steel casting, It's a rare existence.

Although there is only a word difference between casting and building, the social development direction evolved later is far from earth. One is still an agricultural society, while the other is making great strides towards the direction of preliminary industrialization, and finally riding the dust

It is estimated that the craftsman City rarely used to forge any iron and steel artifacts, so now it began to imitate the water lighter. It was found that although the process is that process, which seems not complex and can be mastered, because of some subtle differences, they can't make finished products like the manufacturing Bureau anyway.

"Sir, can this problem be solved?"

Yan Li patted the dust on his hands and stood up, "this problem can be solved!"

"I don't know where this problem comes from. A group of craftsmen haven't found out the problem after thinking about it for a year?"

"Did you use straw ash and dry sand when gathering sand?"

"What's the problem?" Ou Tiexin looked at Yan Liqiang suspiciously. "It's not exactly the case when making sand molds for some artifacts cast in the craftsman City, but there have been no problems before?"

"Are the artifacts you cast copper or iron?"

"It's copper!"

"The melting temperature of iron is nearly half higher than that of copper, and the weight under the same volume is much larger. Although it is the same sand casting process, do you think the sand gathering things used for both are the same?"

When ou Tiexin's spirit was shocked, he quickly arched his hand to Yan Liqiang, "please give me your advice!"

"The most important reason why casting iron molds produce sand holes is that the surface strength decreases sharply after the sand mold is dehydrated and dried after solidification, and the surface sand particles are easy to be eroded by heavier and hotter molten iron and fall into the molten iron, so as to produce sand holes. If you want to avoid sand holes, you can't use straw ash and dry sand when gathering sand, but must add clay with higher humidity, Or mix with a little paste, and then the sand mold shall be pressed and formed. Spray water mist on the sand mold half an hour before the sand mold is cast in the lower box. Don't let it dry, remember... "

Yan Liqiang said, but it's a secret skill among craftsmen. It's worth thousands of gold. If you put it elsewhere, it's definitely the unique skill of those craftsmen's family. Hearing Yan Liqiang say this way to solve the casting sand hole, ou Tiexin and the leading craftsmen next to him were very happy. They looked at Yan Liqiang with adoring eyes. The craftsmen really didn't blow it out that day, Just one look, you know the problem

Luo Yutian also smiled, "Li Qiang, in this way, the water lighter made in this workshop will probably be the same as that made by your manufacturing bureau?"

"Brother Luo, do you want to hear the truth?"

"What truth?"

Yan Liqiang shook his head, "even if this problem is solved, the water lighter made in the craftsman City workshop is only better than your previous one, but there will still be a gap compared with that of the manufacturing Bureau, and it is very difficult to make up for the gap, and the gap may become larger and larger in the future!"

Ou Tiexin, who was just a little happy, was unconvinced. "I'm afraid it's exaggeration for adults to say so. How can there be such a big gap for the same water lighter?"

Luo Yutian also looked at Yan Liqiang with a puzzled face

Seeing a short hair sticking to the leather apron worn by ou Tiexin, Yan Liqiang reached out and pinched the hair, "in my manufacturing Bureau, the weight, thickness and volume of this hair, I require all qualified craftsmen to fully measure and calculate. If you want to make something like this hair with copper and iron, Everyone must draw as like as two peas. If the person who has never seen this hair does the same thing as the blueprint, he can make the exact same thing. I wonder if anyone can tell me the weight geometry, the thickness and geometry of the hair and the volume geometry. You can draw the drawings to let other people do it. How many people can make something exactly like this hair?

A group of craftsmen, including ou Tiexin, heard Yan Liqiang's question and looked at the hair on Yan Liqiang's hand. They were all silly at once. Or was ou Tiexin the first to respond, "do adults have different measurement systems in their manufacturing bureau?" Yan Li nodded, "yes, my manufacturing Bureau and the thousand machine hall of Lingshan sect have adopted a new set of weights and measures. Together with organs and objects, it is difficult to have greater development without more accurate standards of weights and measures. Everything in the world must be measurable for our craftsmen!" This novel has been translated by www.novelhall.com and if you are reading this somewhere, they have stolen our translation.