Traveling through the sword to engage in military industry.

Chapter 89: A Machine Tool Base

"Senior Engineer, the size here seems to be a little off. We need to adjust it a little more. Our precision must reach at least the millimeter level."

In Yangcun, Ren Zhong led Gao Kaiming's mechanical processing team to start the arduous and arduous molding work.

Casting large castings is not an easy task, and mold making is a huge workload.

The molding sand for molding is not easy to obtain. According to the requirements of castings, the molding sand requires at least four different raw materials, silica, alumina, iron oxide and clay. In addition, the molding sand may also contain other auxiliary materials, such as water glass, cement, resin, etc., to meet different casting needs.

Machine tool bed castings, machine tool worktables, machine tool castings, etc. require dry casting to form better castings, which have higher requirements.

In Yangcun, other materials except clay are not easy to obtain, so Ren Zhong simply brought them from the main plane.

Fortunately, these things take up relatively little space and weight. The clay that is in the largest demand can be obtained locally. Now Ren Zhong has a heavy burden to bring goods. He has to bring seeds, copper coins, machine tool parts, and even hydroelectric generator parts.
The machine tool model parameters that Ren Zhong got from the main plane were just a bunch of data. It would take a lot of effort to turn them into mold production for machine tool castings.

It was difficult to find enough candles to shape the machine tool and then heat and melt them, and there was no condition to make a lost foam. For his first machine tool, Ren Zhong used wood to imitate a one-to-one hard model, then covered it with molding sand. After molding, it was separated into two pieces, and then he tried to find a way to make a seamless stitch.

Fortunately, Gao Kaiming and his group of new tool workers had some experience in these operations. According to the drawings and parameters provided by Ren Zhong, after several days of working late into the night, they finally completed the model of the first machine tool bed and workbench.

"Mr. Xu, Mr. Gao, maybe today we will start to create a new history." In front of the No. 1 blast furnace, Ren Zhong, who was waiting for a new batch of gray cast iron to be smelted, saw that Xu Jiucheng and Gao Kaiming were very nervous, and couldn't help but make a joke.

Of course, if the casting is successful this time, it will indeed make history, and it will be history with a very high starting point.

This not only created a new history for the base, but also meant that we could start casting and producing high-end machine tools!

For the whole country, this will also be the first high-end machine tool. In the 6140s, the was unremarkable, just a workhorse. But in the s, it was also internationally competitive. Moreover, Ren Zhong also asked his two senior brothers to use the main plane's first-class high-quality tool steel.

Once assembled, this new machine tool will undoubtedly be the base's first advanced machining machine.

With this machine tool, Ren Zhong can even open up his own machine tool production business in the Liangjian plane, producing new punching machines, boring machines, and milling machines.
Even though the control aspect is slightly inferior to the CNC machine tools in the main plane, but relative to this era, after the mature machine tool designs of the 1970s and 1980s and the process formulas of several tool steels that Professor Hu will soon mix, the materials will be aligned with the mainstream tool steels currently produced in the main plane.

The combination of these advantages can ensure that the base's future machine tool technology is not inferior to the current mainstream level of world machine tools.

Even though the core of this first machine tool is a bit abrupt, it is all processed on the main plane. But who knows?
At least everyone has seen that the first machine tool was cast and assembled in Yangcun, right?
Even though there is no intellectual property protection in China now, Ren Zhong can register the patent for this machine tool after the Japanese invaders are driven away. After all, in the world of Sword and Fairy where Ren Zhong is, these are undoubtedly innovations with independent intellectual property rights!
"Boss Ren, aren't you nervous?" Gao Kaiming looked at the motionless blast furnace. "If we can cast this, it will really push our machining to a new level. I just don't know how we can find a generator to drive this precious machine tool."

Gao Kaiming has a long-term vision.

Ren Zhong smiled and said, "We can just build a hydroelectric generator. There is water in Yangcun, so we can use it to generate electricity." "Boss Ren," Gao Kaiming was speechless. What was he talking about? It seemed like a hydroelectric generator was a paper airplane? Could it be built just by saying it?
However, thinking that the machine tools had already been invented by Ren Zhong, Gao Kaiming was powerless to refute.

Xu Jiucheng stared at the blast furnace without saying a word, he was used to being bullied by Ren Zhong. Ren Zhong said yes, after all, he would give a new steel formula in a few days, and it would be a high-quality steel variety.

Now, relying on the ordinary-looking earthen furnace in the village, Xu Jiuchen is doing smelting work that is truly unique in the country.

Who would believe it?

After completing the production of the first batch of steel, Xu Jiucheng took the initiative to write a letter and forwarded it to some of his old colleagues through the headquarters, hoping that they would come to the base to witness the miracle of the domestic steel industry. He just didn't know whether they believed him or not.

After all, with these achievements, Xu Jiucheng felt that as long as he survived, he would definitely become a part of the history of domestic steel. Even if he was just a witness, he was still someone who had been with the pioneer Ren Zhong.

"I'm not kidding you. I've already asked the organization to transport the core part of the hydroelectric generator. We will then recast the casting part and match it with the machine tool." Ren Zhong looked at their disbelieving expressions and said seriously.

"That's great. Do you have the blueprint for this machine? I'll have everyone make the mold first." Gao Kaiming finally believed that Ren Zhong was not joking.

"Of course, don't worry. Look, the molten iron is coming out. It seems that there will be no problem with the base of our machine tool today." Ren Zhong looked at the blast furnace starting to flow out of red molten iron and smiled and changed the subject.

The molten iron that flows out at first is naturally not wanted, as it obviously contains a lot more impurities. Only when a part of it flows out and forms a stable flow, it can be considered reliable gray cast iron molten iron.

Several smelting workers were standing by with crucibles in hand. With the help of more than a dozen skilled workers such as Xu Jiucheng and Gao Kaiming, Ren Zhong was finally freed from the manual operation.

The molten iron waiting to flow out accumulated to nearly 1 cubic meter before the smelting workers began to quickly use the crucible to fill the model of the 6140 machine tool base. The base weighed nearly 2 tons, and the smelting workers needed to fill the model within ten minutes. Otherwise, the inconsistent temperature of the molten iron before and after pouring would seriously affect the quality of the casting.

Ren Zhong had already understood this kind of process control requirement clearly from the main plane.

However, the cooling time after pouring cannot be as rough as the previous test of steel using cold water annealing after solidification. This is simply a destructive test for large castings.

After pouring, wait a few days for the entire model casting to cool naturally.

In order to ensure that the inside and outside of the casting solidify at the same time, sometimes it is even necessary to heat the outside of the sand mold appropriately so that the temperature inside and outside of the casting can be cooled down to the same level.

These are all tedious work. After seeing the model cast, Ren Zhong had no interest in watching any further. Instead, he handed over the process requirements to Gao Kaiming and other tool workers.

First update, please recommend and vote


(End of this chapter)