1949 I am from the future

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[236] Build a fighting machine

Qingdao Sifang Locomotive Factory is now in full swing preparing to imitate the new steam locomotive.From the establishment of the factory in 1900 to the present, for 50 years, in the hands of the imperialist powers and Chang Kaishen comprador bourgeoisie, Sifang Factory and 19 other large and small vehicle repair shops in other parts of China have only done maintenance and have never built a single car. , nor the ability to manufacture a complete vehicle.

When the imitation task was issued by the central government, all the employees of the Sifang Factory were excited, but the excitement was nothing more than excitement. In this era when all locomotive manufacturing technology is monopolized by the big powers, how should this locomotive be built?

Historically, Sifang Factory started from imitating Manchuria's "Emperor-type" steam locomotive, and in August 1950 repaired and assembled a steam locomotive that was renamed "Jiefang type".From then on, the difficult journey towards locomotive manufacturing began.

Li Guoming, the chief engineer of the Sifang Factory, immediately began to bite the bullet and start preparing after receiving the task assigned by the Minister of Railways Teng Daiyuan.As an engineer who graduated from the Industrial Machinery Department of Tongji University, he couldn't be more clear about the current situation of railway vehicles in New China.

Li Guoming said to Wu Geng, the director of the factory at that time: "Director Wu, together with our Sifang factory, all these vehicle factories in the whole country are actually small and medium-sized repair shops. We need to make some simple parts for railway repairs. , or repair locomotives and road construction machinery, I think it’s okay, or give us parts and ask us to assemble a machine head, I think we can do it together, but if we ask us to build cars by ourselves, it’s not at all right now. Possibly. Where is the steelmaking furnace? Where is the forging machine? Where is the precision machining machine tool? Even if all the parts are made, where is the heat treatment equipment?"

After saying this, Li Guoming looked at the factory director Wu Geng.

Wu Geng stared, and said: "The central government didn't want us to build a new model out of thin air. Minister Teng said, first use the materials shipped to imitate and assemble a machine head."

Li Guoming frowned and said: "Then we should order a model first to see which one is better to imitate. It is best to have a broken machine head. Let's dismantle it first and draw the parts one by one. Since there is no forging For the equipment, we will make it by hand. Some key components must require high hardness, so we will go out of our way to build a heat treatment furnace, but we don’t have the carburizing and hardening technology after heat treatment.”

Wu Geng said anxiously: "You are a deadhead, foreigners are not born with it, we can't test it slowly, we can always try it out!"

Li Guoming said dejectedly: "Then how long will it take to try..."

But when the blueprints, manufacturing equipment, and production materials from the Ministry of Railways were shipped to Sifang Factory, Li Guoming immediately became excited.

In the technical department of Sifang Factory, there is a classroom-sized room surrounded by white walls, with a few drawing racks, and several draftsmen are copying drawings against the drawings. In the center of the room, four large square tables are lined up. A newly shipped drawing data.Li Guoming stood by the table and lay down on the table, looking at the blueprints on the table and marveling at the same time.

As he carefully examined each blueprint in front of him excitedly, Li Guoming's technician, Zhang Huancheng, praised: "This blueprint is really well done. It even draws a movement trajectory diagram for all the moving parts! Assembling parts All have drawn relationship and position diagrams! The installation technical conditions are clearly marked! Even the design calculation table has detailed data! There are even design instructions for each functional component! Who drew this! What a genius! This is absolutely The most professional vehicle design drawings can only be made by professional locomotive design engineers who have worked in foreign locomotive factories!"

Zhang Huancheng is 25 this year. He has been working as a factory worker since he graduated from junior high school at the age of 15. He has worked in Sifang Factory for ten years.Because of his studious and quick mind, he was promoted as a technician.Zhang Huancheng said happily after hearing the words: "It's great now, we can build and assemble by ourselves as long as we follow the pictures, Li Gong, let's see if we can do it now."

Li Guoming's eyes were wide open, he looked at the drawings eagerly and said: "There are too many drawings here, we have to decide which one to make first. The equipment shipped from the factory this time is too advanced. There are all kinds of machine tools, and there are 20 sets of welding equipment alone!"

Zhang Huancheng nodded frequently and said: "At present, the master craftsmen in the factory are all researching equipment. Master Lang Zhuo of the welding team said that he has never seen this kind of submerged arc welding equipment. It is said in the data that this submerged arc welding method creates pressure. The quality of the container is stable, the dissolution rate of the base metal is low, and the solder joints are smooth and smooth, and the filling density is high. Master Lang also said that this submerged arc welding has much less smoke and dust than the previous ordinary surfacing welding.”

Li Guoming said: "The less the smoke, the higher the quality of the weld seam. I see that the boiler of the new machine head is manufactured according to the pressure plate submerged arc welding method mentioned in the data, which saves money, labor, time, and weight compared to casting. can also be greatly reduced.”

At this time, the door of the technical department was pushed open, and Wu Geng, the director of the factory, rushed in and said, "The installation and debugging of the new thread grinder dispatched by the central government has been completed! Just now, Master Yuan rolled out ten nuts and used the newly arrived indexing measuring instrument After a test, guess what? Hehe! The positive and negative errors are all within two microns! There are more than 30 lathes, milling machines, boring machines, etc., all of which have such precision!"

Li Guoming lost his voice: "Two microns! It's enough to make an airplane! The central government can't send the wrong machine tool! Shouldn't such a machine tool be sent to the aircraft factory!"

Director Wu immediately stared and scolded: "Fart! This is for our Sifang factory! Anyway, I gave it to me, and no one can take it away! I said, did you, Lao Li, choose the model? I don't even know the foundry. It’s freed up for you. The 250-ton horizontal cold-chamber die-casting machine, 160-ton vertical cold-chamber die-casting machine, 150-kg low-pressure casting machine, resin sand mixing mold machine and other equipment allocated by the central government have all been installed! There are bolt automatic cold pier machine! Nut automatic cold pier machine! 160-ton bridge crane! 630-ton closed double-point double-action press! 800-ton multi-station automatic hot heading machine! Good guy, although they are all old, they can They are all treasures that I have never seen before! The legs of Master Bai in our machining workshop are trembling. He and a group of young men are learning how to operate with the new technicians! Let me tell you, Lao Li, there are only machines waiting for the model, but there is no machine. Waiting for the model! Before all the masters learn to operate, you must immediately determine the model for me! I must build the first steam engine head of our Chinese before the National Day this year! This is not a steam engine! It is a fighting machine ! If you can’t complete the task, Lao Li! I’m not finished with you!”