Courtyard light

Chapter 182 Snowmobile (Part [-])
"The parts are almost ready, mainly because some parts need to be processed manually." Liu Hai was talking about the track on the back of the snowmobile, which is not yet finished.

For modern snowmobiles, the tracks are made of composite materials, but now, only steel wires with rubber are used, and the rubber skins are used to process them by themselves, just like retreading tires in a small workshop in Batie.

So the progress is a lot slower. After the samples come out, the tire factory can produce special tracks. Now that the samples have not been released, it is impossible for the rubber factory to manufacture them for you.

Besides, Liu Hai doesn't want to owe favors, so let's not talk about the plan. When there is time, the maintenance department will make it manually. Although the service life may not be ideal, the sample is as long as it can be used.

"Some motorcycle tests on the plateau are not ideal. In some high altitude areas, it is said that the gasoline is frozen."

"The motivation is not a big problem."

"The service life of the machine is not a big problem." Sun Aiguo said another thing.

When Liu Hai heard this, he nodded. This is the benefit of experimentation. When driving in Big Brother’s place, antifreeze is added to the gasoline. It's for sale.

Liu Hai's heart moved. Teachers can participate in this project. I know the general formula, and there are not many equipments for the experiment.

"Let me ask the teacher about this." Liu Hai started riding motorcycles to replenish materials on the plateau. Many places there are not suitable for motorcycles in winter, but there are always a few months where they are suitable.

Motorcycles only need a small road, but cars and trucks require too much road investment.

It's not that Liu Hai has never thought of building a helicopter. The first is that it is too late. The second is that high-end weapons and equipment are brought out, and the country has no capacity to produce them. The third is that they will be stared at by two social leaders. The helicopter, the plateau is useless.

The plateau can use the Black Hawk helicopter, which is really not suitable for the Big Brother stuff. Now the engine used by the helicopter is a radial piston engine, and the modern one uses a turbine engine. The turbine engine is suitable for high altitude and high temperature environments.

Even if Liu Hai makes it, he probably won't be willing to part with the equipment, and what can I say, the third brother doesn't need a helicopter, he just needs more supplies.

"Well, it's best if we can solve it." Sun Aiguo just mentioned it. Sun Aiguo's knowledge about bangs is beyond description. Look at this office. There are many tomes in Russian, English and German. , Chinese...tsk tsk.

"Can you build that one-thousand-ton hydraulic press?" Sun Aiguo almost gave himself a slap in the face, but why did he express his thoughts?

Hearing this, Liu Hai said, "It can be done. There is no casting machine, and the rolling mill on the opposite side needs to cooperate. Some parts can be forged first, and the secondary processing will be more troublesome."

"What's the trouble? No trouble, no trouble." Sun Aiguo understood what Liu Hai said. As for trouble?Why is there any trouble? The steel rolling mill basically provides us with supporting equipment now. Although it is not direct, most of the products produced end up at the motorcycle factory.

Motorcycles require a lot of steel plates, because there is no plastic now, and all parts are basically metal. Tricycle carriages, cabs, etc., and bangs will still need steel when they come out with four wheels.

"We still have to find a way to build a casting machine." Liu Hai said.

The technical difficulty of the casting press is not too high. The key to the casting press is to ensure the pressure during casting. Liu Hai thought about it. If the technology is not good enough, materials can be used.

"This seems difficult to handle."

"Just wait and see, I still have a lot of things to do." Liu Hai has no choice but to learn the technique step by step.

"That's right, you start with the single-cylinder diesel engine. The higher-ups were originally planning to introduce the single-cylinder diesel engine from Xiaobook. Now you're doing it here. The higher-ups are not in a hurry for the time being." Sun Aiguo said.

Liu Hai knew that the single-cylinder diesel engine of the walking tractor was introduced from Xiaoben, probably this year.

"Yeah." Liu Hai knows that the introduction of technology now needs to be exchanged for materials or money. These are workers and farmers working hard. If you come up with some technology yourself, these people will pay less.

I don’t know how to make the bangs for a walking tractor, but when the 25-horsepower diesel engine is produced, I will give them the drawings and let Li Dali and the others make a single-cylinder diesel engine for the walking tractor. After the technology is completed, they will be sent to other factories to make...

Sun Aiguo strolled around, then asked Li Dali and the other three, and left satisfied when he knew that the snowmobile was coming soon.

The three of Li Dali's snowmobiles are almost ready, and so is Liu Hai's side. In fact, the simple drawings are not complicated, mainly because Liu Hai is experimenting with new materials in the laboratory.

This time, Liu Hai pretended to fail dozens of times, all of which were recorded, before succeeding.

Otherwise, the bangs can be taken out in three to five days.

The front of the snowmobile is a sled, and the rear is a crawler. The 250 engine is mainly used to carry people and goods, which is much larger than modern recreational models.

After all, it is for military use. In winter, it has a larger load capacity for sending supplies to outposts, running for contacts, patrolling, etc.

Then we face another problem, that is, gasoline antifreeze. The freezing point of gasoline is between -40 and -120 degrees. Although -40 degrees does not necessarily solidify, it will reduce fluidity.

The higher the octane number in gasoline, the lower the freezing point. The freezing point of octane is -57 degrees.

Alcohols, ethers, or oil-soluble film-forming agents are mainly added to gasoline to prevent the carburetor of gasoline engines from clogging.

Watching the three of Li Dali assembling the snowmobile, Liu Hai felt that there were not many people in the maintenance department, but the factory manager didn't add anyone, so he couldn't do anything about it.

Moreover, Liu Hai felt that he was not very suitable as a manager, but more suitable as a researcher.

Liu Hai moved his mouth, Li Dali and the other three took action. This snowmobile could be used to pull a sledge in the future, so a hook-like design was designed at the back, and the overall frame was also strengthened.

Li Dali and the other three were very happy to talk about Liu Hai and do it themselves, which proved that the leader valued him.

"Section Chief." After the assembly of the three of them, Li Dali looked at the green snowmobile in front of him, waiting for Liu Hai's next instruction.

"Go and report to the factory manager." Liu Hai asked Li Dali to report.

After Li Dali went to report, Sun Aiguo came. It is now the end of July, and there are many places where it snows in October in the Northeast. It is just right to make a batch for testing.

"Is this a snowmobile?" Sun Aiguo looked at the motorcycle, which was completely different from what he usually saw.

"Uh-huh."

"How to test this?"

"Find a piece of sand, but it's just a small test."

"That's okay. Let's get a batch of samples out first."

"Director, shouldn't we leave this to others?"

"Xiao Liu, this is related to the reputation of our factory. Let's make a batch of samples and test them without any problems. If other factories have manufacturing problems later, it will be none of our business. We will take out the technical prototypes now. When the time comes, Some guys can't do it right and say we have a problem." The factory director patiently explained to Liu Hai the secrets involved. Once a problem occurs, some people don't look for their own problems, but look for others. Sun Aiguo cannot bear this responsibility. Sorry for the factory name.

(End of this chapter)