Release that Witch

69. Chapter 69 Guns

    Four days later, the Northern Slope Mine burned the backyard.

    Two deep holes were dug in the ground in the yard, each of which was round, narrow and wide. The front segment has an inner diameter of approximately twenty centimeters and the inner diameter of the rear end is expanded to twenty-six centimeters. These holes are the mold Roland intends to use to cast the shell. The inner wall of the hole has been baked by Anna, and the surface soil is sintered into a whole, as if a layer of shell is attached. The medicine chamber is facing down for better wall quality when casting, and the more scum and air bubbles are contained above. The size of all the caves is calculated from the shells. He roughly remembers that the so-called six-pound gun and eight-pound gun in history are named after the weight of the shells. So, first cast a few twelve pounds of iron balls, then according to the iron. The diameter of the ball is added to the diameter of the barrel to calculate the inner diameter of the mold.

    In the absence of a surveying tool, Roland simply customizes the standard. He intercepts a piece of iron that is about the same size as his fingerless nails and sets it as a base unit, one centimeter, to make iron bars of other sizes and engrave them. Segment line.

    The diameter of a twelve-pound iron ball is about 12 cm under the measurement of a rough iron ruler. He sets the thinnest wall thickness to four centimeters. The back-end drug room is expanded to seven centimeters in order to prevent bombing. Thus, the inner diameter of the mold is obtained. As for the length, although he knows that cannon has a single diameter, but there is only the main gun diameter of the battleship and the main station tank with impression. As for the antique front-loading gun, he really does not know.

    Considering that the shorter the body, the lighter the weight, and the more material, Roland took a wave and took a value of one meter five. If the test results are not satisfactory, then adjust it will be alright.

    When cannon was first invented, it was made of iron bars and iron powder on the wooden core material, and then reinforced with iron hoops and finally burned the core material in the cannon, just like the storage barrel. Of course, Roland knows that this cannon has the risk of leaking and exploding, so the whole process of casting and boring is used directly. For steam boring machines, it is not difficult to drill a six-pound gun or a twelve-pound gun.

    In the spirit of justice, he naturally chose a 12-pound gun with a larger muzzle and a thicker barrel. Going up, it is not easy to use as a field gun. As for the weight of the shell, whether it is calculated by shot or by the iron ball is not important, it can be played out then it will be alright. After all, he is learning from history, not playing with replica models.

    “Get started,” Roland took a deep breath and said to Anna. The latter nodded, grabbing a steel ingot and hanging over the hole. The green flame ignited, the ingot quickly turned red, and then melted, forming a small molten steel waterfall that flowed into the hole. The surface of the molten steel is reddish-orange, and the inner core turns into incandescent, and its brightness is difficult to look directly at. In order to protect the vision of the witch, Roland also deliberately supported the hole. She only needs to determine the position in advance and rest her arm on the support pad so that she can watch the inflow into the hole without staring at the molten steel.

    These steel ingots are slowly accumulated in peacetime. The power of Anna alone cannot open the era of large steelmaking, but small batch production is not a problem for her. The most difficult temperature level is solved after using stainless steel. The law can get better qualitative steel.

    This is why Roland dares to customize the size of the barrel. Steel cast guns clearly have higher strength than pig iron barrels and bronze barrels. Even if the size is wrong, cannon will not be easily bombed.

    The molten steel is gradually rising, and the ingots that are saved are also rapidly decreasing. It is obvious that Roland can feel some heartache. In the end, when will he be able to build a stack of chimneys and blast furnaces on the territory to refine the inexhaustible steel? For a long time, steel production was one of the criteria for measuring the strength of the powers. He now feels it.

    Filling the two molds, Anna’s cheeks became red. Roland took out the handkerchief and gently wiped the sweat from her nose. At the beginning, Anna will also show some resistance. Now she has been motionless and closed her eyes to let Roland apply.

    The drooping bangs dyed a red edge under the molten steel, and the soft neck made people want to take a bite. When you are condescending, the half of the slender collar that is exposed through the collar will enter your field of vision. Close to the door, but also smell the scent of her body.

    “cough cough, okay…”Roland puts away the handcuffs and retracts the emotions that are ready to go. “Get here today. Well done, I will tell the kitchen to reward you with a black pepper steak for dinner. ”

    Not yet, he thought that it would be inevitable that there would be a suspicion of being in danger. Wait a second, wait until she is truly free…

    Anna opened her eyes, and although the sweat had been wiped off, her face seemed redder than before. She nodded to Roland and gently responded.

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    In the next few days, Roland traveled between the castle and the Northern Slope Mining area.

    In addition to the barrel, he also needs to make a sufficient amount of sickle.

    This tool for drilling is made in a similar way to the barrel. Its diameter is exactly the same as that of the shell. After it is removed from the mold, Anna heats it again and processes it against a hammer. It is very different from the shape of a normal spiral knife. At first glance it is like a blunt iron bar. The only difference is that the top of the head is knocked out of a gap for discharging metal fragments. Finally, quenching increases the hardness of the file.

    Unlike the high-precision drills of modern trampolines, Roland only needs a steel rod that can punch holes. Considering the high wear rate, he and Anna made five simple sickles in a week. Previously, steam boring machines have fully demonstrated their ability – the production of pig iron barrels has increased rapidly from two per month to ten per day.

    When everything is ready, the artillery is removed from the pit by the miners, the surface scum is removed, and the cart is transported to the blacksmith shop.

    These two artillery pieces almost exhausted the steel that Roland had accumulated, and it was not an invaluable treasure. On the way, the prince ordered Carter and two Knights to take care of the whole process, which made Chief Knight feel a bit more. Who will come to steal such a dead thing?

    The blacksmiths leveled and polished the surface of the shell at the request of the prince. After the whetstone was polished, it was sent to the backyard of the castle. At this point, the two round solid steel bars are dark gray in appearance, giving off a thick metallic luster.

    Roland couldn’t wait to change the scythe, and Carter fixed the blast in place so that the tip of the cutter tip was just at the center of the steel bar.

    In the face of this historic moment, Roland pulled the Steam engine’s valve. The sickle began to run slowly, and soon it rose to a steady speed.

    “Into the knife!”The prince shouted.

    The Chief Knight pushes the sliding base to control the depth of contact between the projectile and the file. When the head touches the barrel, the harsh noises suddenly overwhelm the steam of the Steam engine. The lard that acts as a lubricant is squeezed into the hole, and black foam and curled wire emerge. The onlookers of the witches quit the wooden shed, and only Lightning insisted on staying in place. It seems that for her, these black machines are more beautiful than any scenery.