帶您見識下:巴基斯坦民間如何接近人工打造(巨型齒輪軸)，看完您不驚歎才怪呢😁💥👏🏿👍👉 #新瑞大視野

After watching the process of making giant gear shafts in Pakistan, I finally understand why Pakistan is known as the world's mechanical city. It took high-tech industry to produce special mechanical gear shafts. Pakistanis don't need technology to make them. They can make them by hand. Next, let's see how Pakistanis make giant gear shafts. The first step is to cut the gear shafts into pieces. Then transfer the pieces to a giant furnace. Light the furnace and use firewood as fuel. The three workers put the firewood into the furnace. The other workers start the wind system on the furnace. Increase the firepower of the furnace to more than 1,000 degrees Celsius. After five hours of burning, the pieces are finally heated. The workers use an iron hook to open the furnace door. Then the two workers hold a heat-insulating device made of wet tape. They block the heat radiation of the furnace for their teammates in the front row. The teammates cooperate with each other. They use a super-large steel rod to hold the end of the steel rod. They work together to move the pieces out of the furnace. Then everyone uses the principle of leverage to lift the pieces. Transfer it to a 100-ton hammer drill. Then start the drill and start hammering the pieces. As the saying goes, steel needs to be tough. The workers in Pakistan wear simple cloth armor. They have no defensive effect. To withstand the heat radiation of the red steel, they have to rely on their iron-like will. In order to make this giant steel rod, they have to pay attention to the strategy. The workers are arranged in an umbrella formation. There are two people on each side. There are more than six people in the middle. The four people in the front are in charge of controlling the rotation of the steel rod. The six people in the middle are in charge of the advance and retreat of the steel rod. In this way, it is possible to accurately control the weak point of the hammer on the steel rod. When the steel rod is made into a cylinder, an old master with poor skill takes out a self-made tool and uses a hammer to hit a circle of marks. This is to divide the gear shaft into the shaft part. After the shaft mark is hit, the steel rod turns dark red, indicating that the temperature of the steel rod has dropped. But the speed is weak. The steel rod needs to be reheated. When heating the steel rod, in order to avoid damaging the steel rod, it needs to be removed. Next, close the steel rod door. It is handed over to the fire control worker to start the ancient wind system to increase the temperature of the furnace. When the fire is raised to the peak, the worker lifts the steel rod door, closes the steel rod door, to prevent heat loss. And this time the heating takes about an hour. After an hour, the steel rod is reheated, the steel rod is opened, and the steel rod is put back into operation. The workers work together to control the edge of the steel rod, heat the red steel rod, and transfer it back to the forging platform. Then remove the locking lock, replace it with a rolling chain, and then start forging the handle. First, break the mark part into a square handle, and then continue to break its edge, making it a cylinder-shaped handle. At this time, there are still many cut surfaces on the handle. The workers use a card to measure whether the handle is straight. After measuring, use a dense breaking rhythm to eliminate the cut surface on the handle, so that it becomes integrated. Very quickly, the handle of the steel rod is forged like this. Next, remove the steel rod from the forging machine. First, tighten the forged handle with a steel clamp. Then send the other end of the steel rod into the furnace to heat. After heating, continue to put it back on the forging machine for forging. First, hammer it to fix the surface of the steel rod, so that it becomes flat and smooth. Next, use a self-made tool on the steel rod to print the forged line of the handle. Then you can use the forging machine to forge the handle of the other end. The workers' work attitude is also impressive. Faced with the heavy work of labor and the bad production environment, they can still maintain enough enthusiasm to fully show the hard work and expansion of the Pakistanis. The hammer forging machine they use is also full of sense of age. It is the item that was left over during the British colonial rule. The machine is driven by steam. Someone needs to sit on the machine and manually control the upper and lower bellows of the hammer to forge the bow. After two hours of forging, the other end of the handle is also forged. The steel rod has completed the first transformation. It needs to be put aside to cool overnight. The workers build a cutting device on the handle the next morning. Use a chisel to cut off the excess part of the two ends of the handle. After the handle is cut, the chisel is used to process it. Such a huge bow needs a heavy car bed to carry this big guy. The iron-cutting chisel with the rotation of the car bed carves out the complete surface of the chisel. After the chisel surface is carved out, the chisel is processed into the steps. The processing of the steps is very challenging for the workers. If you don't pay attention, the chisel will break. So this step needs to be completed by the experienced old workers. For the precise control, the Pakistanis' workers also have a unique skill. They use a piece of cardboard and a piece of steel sheet to ensure the accuracy of the chisel. After a whole day of machine processing, the rough steel sheet becomes a bow with a metallic feel. The chisel has also completed the second transformation. Next, the workers tie the two ends of the bow to separate it from the car bed. Then, transfer the chisel bow to the stand to open the chisel. After the chisel is installed, the chisel is slowly lowered to fix the chisel head. The chisel bow is fixed on the cutting device. Then, start the machine. Rotate the chisel head sharply on the cutting device to start chiseling the chisel bow. The red liquid is used to cool the knife and smooth the cutting edge. Start the machine and turn the chisel bow at a certain speed to keep the same rhythm as the chisel head. In this way, the chisel bow will be chiseled perfectly on the chisel bow. At this point, the process of making the chisel bow is all over. Do you think the chisel bow made by hand can match the high-tech industry?