After getting the Iron Iron, Chen Xu took a panda sled to inspect the Secretariat Government Office, and then went to the newspaper office to ask Chen Ping to publish an advertisement for long-term acquisition of Xuantie in the middle of the next few issues of the newspaper. He then went back to the Qinghe Hou Mansion to visit Shui Qingrou, Ying Shiman and others who were storming the street in front of the door. Finally, under the escort of a group of guards, he drove the cool panda car out of the city and headed straight for the experimental factory of the Academy of Sciences.

With these meteorites, a batch of high-quality cutters and drills can be quickly made, which basically solves the current dilemma.

The composition of meteorite is very complex, and each piece of it is different. Even later generations with advanced technology cannot fully analyze the specific composition. However, after meteorite fell in the atmosphere and experienced a high temperature of thousands of degrees, its material has become essentially different from ordinary iron. After it can survive and cool down, it is a natural alloy with extremely high hardness. It is really not an exaggeration to call it divine iron.

The drill bits and tools used in high-precision machine tools in later generations were all high-speed steel, but the cheaper tungsten steel used most on ordinary civilian lathes, and the tungsten steel is black, which is very similar to meteorite color. Therefore, Chen Xu guessed that the material of meteorite may have similar ingredients to tungsten steel.

However, at present, the craftsmen in Daqin don’t even know what metal tungsten is, let alone refined qualified tungsten steel. This process is still far away.

Although the road was closed due to cold and heavy snow, all the workshops and workshops in the experimental factory were still busy and busy, and many craftsmen were still creating and making items.

Chen Xu came on a panda sled, which naturally caused a sensation in the entire experimental factory. Countless people rushed out of various workshops and workshops to watch this strange car that was driving fast without wheels.

"Please carry this box in, and then call the hemp rods and the craftsmen who built the lathes!" Chen Xu parked the panda car outside Gongshusheng's iron smelting workshop and told the group of craftsmen who were greeted.

After entering the iron smelting workshop, the box was placed on a workbench. After Gongshu Sheng opened it, he looked at it with great surprise, "Mr. Marquis, this... is this black iron?"

"Have you seen it?" Chen Xu asked in surprise.

"I have seen it. I used to see it in the copper and iron workshop in Ranhan, Wancheng, and I once saw a piece of black iron the size of a fist!" Gongshu Sheng nodded repeatedly.

"It's good to see it. I asked for these black irons from the emperor to build cutters and drills on the lathe. Hurry up and prepare them. After the craftsmen in the lathe workshop come, you will first create a few pairs of knife heads according to the specifications required on the lathe. I will use these knife heads to produce steel screws and nuts!"

"It turns out that the Marquis thought of this, and I am going to inform the Marquis after the snow melts in a few days!" Gongshusheng said excitedly.

"Black iron is the hardest synthetic metal in the world, with complex composition. Now that the iron smelting workshop cannot make good steel, I can only temporarily replace it with black iron. When processing, please note that these meteorites can only be used as the head of the knife, and the blade body should be made of high-carbon steel, so try to save money..."

Chen Xu carefully reminded Gongshu to win.

The seven or eight pieces of black iron weigh only more than two kilograms, which is about the size of a fist. The smallest piece is only the size of a thumb, only a few taels. However, the so-called good steel is used on the blade, just like a glass knife inlaid with diamonds, and only a small piece of casting the knife head is enough.

Just when Gongshusheng arranged for people to raise the fire, Ma Gan and a group of craftsmen in charge of making the lathes in the test workshop also rushed over. When Chen Xu heard that he found Xuan Tie as the knife head for the lathe, he was also very excited and began to discuss the types and sizes of the knife heads he needed to make with Gongshusheng.

Currently, there are three types of screw specifications required by Chen Xu. The thickest one is naturally the carriage axle, with a diameter of three inches and a medium-sized diameter of one inch, which is mainly used as a spinning fixing device. There is also an eight-point thick screw nut as a common bolt. It is also equipped with wrenches with suitable size fixing holes. As for the movable wrench, the principle and structure have not been developed yet. Although the principle and structure are simple, the main reason is that the thread is difficult to make, but I think the experimental factory can overcome this difficulty soon.

After a group of craftsmen finished discussing, Ma Gan, as the number one craftsman in the experimental factory, quickly put on a dirty cowhide apron, put a small piece of meteorite into a coal stove with iron tongs for refining.

More than ten minutes later, amid the sound of the whirring bellows, a small piece of meteorite in the coal stove was burning red. The hemp rod clamped the meteorite and placed it on the iron felt and gently tapped it into an iron strip. Then cut it into three sections with an axe, each section was about an inch in size. After finishing, the hemp rod put a steel strip into the furnace and heated it. After burning it red, it took out a piece of meteorite and steel strips and repeatedly beat it. After burning it red, the small piece of meteorite and steel strips were completely merged with the steel strips, and finally it was slowly trimmed into the shape of a cutting knife. After quenching and cooling, it was a black cutter blade with a knife edge.

"Let's see if this knife blank is suitable?" Ma Gan picked up the knife blank and observed it and handed it to a lathe craftsman.

The craftsman measured with a ruler and nodded with his thumbs up: "Ma Lord is worthy of being the first blacksmith in the experimental factory. The blanks he created at one time are almost the same as the finished product."

"Hahahaha, that's right, and I don't look at who taught me my skills. The first time I used the iron to hit the furnace was the immortal craft taught by the Marquis. How could it be wrong?" Ma Gan laughed proudly, and his mouth broke into the back of his head.

"That's right, Master Ma is naturally extraordinary when he got the true teachings of the Marquis' Immortal Family. You can quickly create another carving knife and the drill bit of the car's wire. I can install it on the lathe to verify the effect of the black iron knife head!" A group of craftsmen and craftsmen who developed lathes began to flatter Ma Rod shamelessly.

It’s impossible not to shoot, because Ma Gan is now the director of Xianyang No. 1 Machinery Factory, in charge of all machinery manufacturing. Whether this lathe is good or not depends entirely on the craftsmanship of Ma Gan. There are more machines to be produced in the future. The First Machinery Manufacturing Factory will be the core of the entire experimental factory in the future, and everyone will be cursed.

"Okay, everyone wait!" Ma Gan's dark face was almost laughing. He picked up the iron pliers and hammers, and started to create the remaining two knife heads. Among the jinglings, under the jinglings of hundreds of people, half an hour later, the remaining cutter and knife head were all made, and the first cutter also had sharp edges and corners in the stinging sound of a group of craftsmen.

The main reason why black iron was difficult to process in the past was because of the smelting temperature. Now with fine coal and bellows, the temperature of the iron smelting furnace can easily reach a high temperature of thousands of degrees. Even if the meteorite cannot be completely melted, the temperature problem of heating to softening is not great. Moreover, the files used now are not ordinary sharpening stones, but knives cast by smelting quartz sand and pulverized coal iron sand into one. They are much harder than ordinary steel files, and can easily polish steel and polish copperware.

When Ma Gan and a group of craftsmen were busy, Chen Xu kept standing by and watching, without saying a word during this period, because whether it was Ma Gan, Gongshusheng or these craftsmen, they are now very familiar with these craftsmen, and it is almost not his turn to point fingers, and he doesn't know how to do it either.

After an hour, all three blade heads were polished. What appeared before Chen Xu was shiny three alloy steel parts, and the blades were polished sharply with fine oily sharp stones, and the blades emitted a dark and sharp light.

"Let's go, go to the test workshop to get on the car and try the effect!" Chen Xu picked up three knife heads next to him and observed them carefully before taking a group of people to the test workshop again.

At this time, Chen Xu asked from the palace to make lathe heads of black iron from the factory. When Chen Xu came to the test workshop, there were already five or six hundred people gathered inside. Almost all the managers and craftsmen in the entire test factory came to witness what kind of magical effect this lathe that can cut steel would have.

The lathe is still the same lathe. The new one has not been designed and made yet. After a few craftsmen have worked hard, they installed the newly created knife head on the lathe and fixed the iron screw blank that had been built before on the lathe.

"Okay, it's time to start!"

After a check, the craftsman, who was responsible for lathe production, opened his mouth, and a big and round helper began to turn the handle. With the slight sound of the gears running, the knife head slowly approached the screw along the slide rail while rotating. Soon, as the cutting of the knife head, several thin iron filings were rolled up and cut from the iron screw. In order to cool the knife head, a craftsman kept watering the knife head.

Dozens of pairs of eyes around the lathe were staring at the position of the knife head. As the threads became longer and clearer, everyone's faces slowly showed an excited expression.

"Mr. Marquis, it seems that we have succeeded. The thread is still clear and the knife head does not seem to be blunt!" A craftsman's face turned red with excitement.

"Let's see after the car!" Chen Xu nodded.

Meteorite has high hardness, and the screw uses iron with very low carbon content. The problem of success in one cutting is not big, which is expected by Chen Xu. In order to achieve the effect Chen Xu wants, this pair of cutting heads must be able to carve out hundreds of screws in a row to be useful. Moreover, the cutting heads need to be constantly polished during use.

Soon the screw of the train was taken from the lathe and handed it to Chen Xu. Chen Xu looked through it and was very satisfied that the group of craftsmen and craftsmen were all passing it next to each other and then smiled and said, "Sure enough, using black iron as a knife head can easily make threads on the steel. What we need to do now is to verify the tolerance of the knife head and see how many screws can be produced continuously!"

"Mr. Marquis, according to the subordinate's speculation, this knife head should be able to be polished at least dozens of times at once, and there is no sign of being dull at all!" After checking the knife head, a craftsman said excitedly.

"Then keep going!" Chen Xu waved his hand, so a group of craftsmen and officials helped all get busy. They kept taking out iron screw blanks from the basket and putting them on the lathe to start processing. After half an hour, a pile of thirty screws were neatly placed on the workbench. The size and specifications were exactly the same, all medium-sized screws with an inch diameter. After the carriage, the cutting heads made of meteorite were slightly blunt, and they needed to be polished again.

"Haha, okay, okay, good, good, this effect can be fully started to make iron bolts on a large scale. Try the drill bit and get the nut out!" Chen Xu was so happy that he couldn't stop talking.

After these screws are processed and polished, the appearance is almost no different from that of later hardware stores, and they are even more pleasing to the eye in terms of craftsmen and apprentices, because these are carefully polished with files by craftsmen and apprentices. The hexagonal nuts are very smooth and flat, and they are heavy and very textured when held in the hand.

Compared with screws, the production of nuts is much easier and faster, almost one in two or three minutes. As the iron chips are rolled up and fall, one silver-gray nut after another is out of the car. After scraping the burrs on the screws with a scraper, and then simply polished and trimmed with a file, the finished product of a nut is placed on the workbench, arranged neatly and looks extremely pleasing to the eye.

Chen Xu put all the nuts of the car next to him and tried it. It was very easy to twist, and it was smooth and smooth, and it was a finished product without any flaws.

The threads of the nuts are very short, so the damage to the knife head is even smaller. Several craftsmen will remove the knife head and polish it after they can get out of hundreds of nuts in one go. Moreover, according to the wear level, this pair of drill bits can be at least thousands of nuts to be worn out to the point of being discarded.

"Mr. Marquis, with the black iron as a knife head, it seems that the lathe will be useful immediately!" The craftsman in charge of making the lathe was so excited that his whole body was a little squinting.

"Indeed, what we need to do now is to improve the finished product of the lathe as soon as possible. In order to speed up the production of bolts, the lathes that process screws and nuts can be separated, so that the structure is simpler and the operation is more convenient, so there is no need to change the tool head and drill bit. Also, with screws, many adjustable snaps can be replaced with screws to fix, which makes it more convenient to load and unload..." Chen Xu pointed at some parts of the lathe and pointed out, and a group of craftsmen naturally nodded.

After seeing the effect of the meteorite iron knife head, Chen Xu finally felt completely relieved. As long as several different types of lathes were made, the axles of the carriage can not only be replaced with bolt-style fixing methods, which are convenient for installation and maintenance, but also can be more widely used in ship manufacturing, which can greatly speed up the production speed. There is no need to make a large number of complex tenons to rivet, and the degree of strength will also increase.

The next morning, the emperor issued an order to collect black iron from all over the country and send it to Xianyang Academy of Sciences. Two days later, the Daqin Metropolitan Daily not only published this order, but also published advertisements for collecting black iron from a large amount of money in the crack in the center. One or two black iron for three hundred coins is really more expensive than gold. As the newspapers and the orders spread, many people among the people also began to have a treasure hunt. Many folk enthusiasts who love adventures asked about the location where the sky fire fell and searched for the whereabouts of the meteorite in the wilderness.

Half a month later, the First Machinery Manufacturing Factory successfully produced the first industrial lathe, and Chen Xu immediately ordered the establishment of Daqin's first bolt manufacturing factory. Under the advertising of the newspaper, the first orders received were five hundred axles of a carriage factory. This kind of axle that is convenient to load and unload also instantly aroused the interest of more carriage factories. Soon, merchants came to the Bolt Factory to negotiate orders in Daliang and other places in Luoyang to negotiate orders, and even long-term merchants asked to buy lathes and open a bolt processing factory. Chen Xu naturally agreed without any hesitation.
Chapter completed!