The tire tread pattern is molded or engraved on the convex part of the outer tire tread, mainly to improve the driving performance of the tire, increase the friction force generated by the tread block and the road surface, and become the power source of automobile drive, braking and steering.
There are many types, among which the off-road pattern is suitable for driving without road conditions, and its pattern block area accounts for 40%-60% of the total area of the tire crown; The slush pattern is suitable for driving on muddy and ice roads, which is a block pattern with sharp edges of the moon, which has good anti-skid performance and can ensure the safe driving of tires on ice, snow and muddy roads.
One of these two patterns is suitable for off-roading, and the other can cope with a variety of complex environments, and it is even better if the two are combined.
Now Xu Hang has polystyrene butadiene copolymer as a raw material, ready-made drawings, templates for two kinds of tires, and black technology of elemental decomposition synthesizer, so why worry about not being able to make synthetic tires?
"On the same side of the car, the distance between the two wheels is about 3 times the diameter of the wheel, according to this statement, well......
The diameter of the wheel is about 720 mm, the thickness is 175 mm, the inner diameter is 65%, the flat ratio of the tire section is 70%, the load index is 77, the allowable speed H is enough, and this thing can be changed by the furnace. ” Xu Hang silently picked up a small notebook and recorded some parameters.
At this time, the role of the major is reflected, these are the knowledge in the compulsory courses, although I haven't used it for a long time and almost forgotten it, but a little reading the textbook, I can still recall a large part of it.
With these foundations, creating multi-functional anti-skid cushion tires is no longer a dream.
First of all, put the copolymer on the retrieval table, according to the above parameter values, Xu Hang began to turn the shaker in the counterclockwise direction, and at the same time simulated the complex structure of the tread groove, buffer layer, protective layer, crown carcass and other complex structures of the tire.
It's shipped!
It's a D-class tire!
Looking at this black item, Xu Hang shook his head and was extremely dissatisfied.
Put it back on the retrieval table, this time he deliberately went to the beach to wash his hands, shook the handle, and suddenly, a black piece of items came out.
"There are lines, there is an anti-slip layer, and it is generally round, which can barely be regarded as A-grade."
Xu Hang continued to rebuild the furnace, and after thinking about it, he added some cobblestone ore and some iron filings.
These things can be used as bead wires.
The bead wire with a round cross-section is the skeleton material of the tire, with a copper plating layer on the surface, and the carbon content of the bead wire is 0.80%-0.85%.
The diameter of the general bead wire is between 1.50mm-2.1mm, and the breaking force can withstand more than 3700N, which has high tensile strength, toughness and good fatigue resistance.
A tire is incomplete without bead wire, and Xu Hang will naturally not forget this.
When the fifth synthesis was completed, Xu Hang's spirits were lifted, and he finally succeeded!
A round, glowing object could be seen as it fell out of the black hole vortex, and the entire ground seemed to shake and a large cloud of dust was raised.
The exterior has a streamlined S pattern, which has the effect of reducing resistance. 720 mm diameter tires*4 (√ completed) This synthetic tire is much better than the tires sold on the market, can adapt to the complex terrain environment of the SC world, and is also corrosion-resistant, and will not puncture the inner layer when encountering iron nail fragments, because the inside is filled by Xu Hang with a thin layer of cobblestone ore.
As for the inner structure, there is not so much attention, Xu Hang has already purchased parts.
"Brother is really a genius, in fact, making tires is really simple, and you have a rough outline when you think about it with your brain."
Xu Hang's face was full of excitement, and he subconsciously scratched his head with his hands, but grabbed a lot of hair.
"Now it's time to make the drive rod rack and connect the wheels to the vehicle."
With black technology, these parts are not complicated, but a little cumbersome.
It took two hours for Xu Hang to complete the second task.
Then there's assembly.
Like a building block game played when he was a child, Xu Hang stacked all the semi-finished products he collected together and put them into the last step of the production line.
Assembling the wheels, connecting the mechanisms, keying the shaft holes, building the hood, guarding the system, installing the furnace......
Once assembled, the chariot cannot be moved, as it lacks a power conversion device that converts the thermal energy generated by the furnace's combustion into mechanical energy!
In ancient times, the old man Zhong spent 20 years using skilled craftsmen to research the steam engine, and then explored the most primitive train, and now Xu Hang uses black technology to develop a furnace as an energy conversion device.
The original steam engine used the burning of coal to create a high pressure, which in turn drove the piston to drive the steam train to make the steam train move, but the furnace just simplified the process.
"Well, you also need a crank rocker mechanism, and if the four-wheel drive is linked, add a double crank on both sides......" …… It took a day.
"That's it!"
Looking at Xu Hang's brand chariot, Xu Hang breathed a sigh of relief in his heart.
Just like Made in China, although most of the parts in it are imported, and only a few special structures are exclusive and original, all he has to do is to assemble them and replace them with furnaces and tires, but after all, he did it himself, Xu Hang is still very excited.
"Take pictures, you have to take pictures, you can take them out and pretend to be forced in the future!"
Click!
[Picture] A silver-white bouncing buggy car appeared on Xu Hang's mobile phone screen.
The body alone is 3.2 meters long, the front seat is placed with a furnace, the car is 1.5 meters high, the wheels are 720 mm, the load index is 77, the allowable speed is H-class, the speed is comparable to that of a sports car on the earth, and the practical performance is comparable to that of an off-road vehicle!
When the bouncing car was assembled, Xu Hang immediately jumped on it, throwing all the combustible materials such as coal branches into the furnace and stepping on the pedals at the same time.
This place is connected to the structure of the flint by Xu Hang, and the other end is connected to the furnace, and the flint burns with a light step on it, and the resulting high temperature causes the coal to reach the ignition point.
It can be clearly seen that after stepping on the pedals, the furnace is instantly ignited.
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Anyone familiar with the MC knows that the furnace itself is a tool for burning items, and as long as there is enough fuel and it can burn, the furnace will continue to run until the durability drops to zero.
Moreover, the furnace does not need to add water, there is no water vapor, all its energy is used to convert heat, and the energy utilization rate is as high as 72%!
Just like an internal combustion engine, fuel burns in its cylinder, pushes the piston to do work, and then outputs the mechanical work through the crank linkage mechanism or other mechanisms to drive the driven machinery to work.
The further down you pedal, the more intense the fire becomes.
A sharp stream of air penetrated through the holes in the upper layer, bringing a chill with it.
"It's now!"
Xu Hang seized this opportunity, stepped on the accelerator suddenly, and suddenly the chariot rushed out like lightning!
********* ps: Well, it's been more than fifty chapters, and I've finally found a little feeling, and thank you to the brothers and sisters who have been voting, brothers and sisters, uncles and aunts, or ......
Take this opportunity to ask for a wave, recommended votes?
Am I too much _(:з"∠)_ shivering