What are Tesla Cyber Pickup Truck Owners Most Worried About?
No one may believe it, but what they are most afraid of is a rainy day!
The owner of the real hammer, the first batch of Cyber pickups, has begun to rust:
Isn't it a "stainless steel" body, "It's like this after two days of rain, it's better than kitchen utensils"...
After two days of rain, the "stainless steel" rusted.
The body of the cyber pickup truck is covered with skin, and small orange round spots are revealed
From a cyber pickup truck owner who had just picked up the car, he had just driven a new car about 381 miles, or about 600 kilometers.
In fact, there is no abnormal working condition, that is, it has rained in my brother's hometown for the past two days, and he has been driving for two days under the rain.
For any car today, the anti-rust process is very basic and simple, and I have never heard of that car is afraid of rain.
But on Cyberpickup, it's really a big problem.
Moreover, this is not an isolated case, many car owners have encountered such a situation. In addition to the appearance of orange rust spots, there are also discoloration at the joints of the steel after a long period of rain
Even, some car owners reported that now the personnel at Tesla's delivery center have begun to remind car owners: the body skin will rust after being exposed to the rain.
What kind of steel is used in cyber pickups, and why does it rust?
The body of the cyber pickup truck is skinned, and the origin is not small.
Stainless steel, but not ordinary stainless steel, the same material as Musk's SpaceX's Starship spaceship.
Codenamed 30X, it can be seen that this material is a variant of the 300 series stainless steel, and we are most familiar with various kitchenware made of 304 stainless steel.
But unlike all the 300 series stainless steel on the market, the material used in the Cybertruck is custom-made by SpaceX's material scientists, and currently only the CyberTruck and SpaceX Starship outer skins use this material.
As for the elemental composition and processing method of this material, Musk will definitely say disdainfully: "How can this kind of *** thing be made public?" ”
According to the official introduction, the 30x has better rigidity and hardness than ordinary stainless steel, and it can naturally bring stronger impact resistance when used on the body.
The thickness of the body skin reaches 3 mm, which is also 0 more than the galvanized steel sheet of an ordinary car6-0.The thickness of 7 mm is several times larger, allowing the Cybertruck to follow the "exoskeleton" concept, that is, to use the body directly as a stressed frame, without the need to design additional components such as the chassis.
The 3mm stainless steel body is also extremely impact-resistant, with no damage or deformation in the slightest touch, and has also resisted 9mm pistol and shotgun shots in previous tests.
In terms of treatment process, through cold rolling and cold drawing, the lattice structure of metal molecules inside stainless steel becomes refined, and the dislocations and dislocation accumulation of grain boundaries increase, thereby increasing the hardness of the material.
In addition, the principle of stainless steel corrosion prevention lies in the dense oxide film formed by its alloying elements covering the surface of the material, and after this oxide film is damaged, the exposed metal part will quickly and automatically generate a new oxide film.
Theoretically, as long as it is stainless steel, there is no need for painting or anti-rust treatment, and there is no fear of directly exposing the metal.
For Musk's Starship, because of the need to consider repeated use, as well as the cost of trial and error in the early stage, 30x stainless steel has become the best choice. The cost is only about one percent of that of aerospace carbon fiber or aluminum alloy. And the heat resistance of stainless steel is stronger than that of traditional aerospace materials.
Don't be afraid of a big weight, because the starship also has the strongest Raptor engine, so the stainless steel legend of "flying bricks with great force" is the second one.
The first one is:
It can be seen that 30x stainless steel is used in aerospace, and the advantages are cost and strength. This idea has also been carried out on the Cyber Pickup.
But unlike cars and spacecraft, 30x stainless steel faces a greater test.
For example, the hardness of cold-rolled stainless steel is too high, and the thickness of 3 mm is superimposed, and the traditional press cannot stamped it at all, which may be the reason why the body of the Cybertruck is flat and has no delicate lines or curved surfaces.
Some analysts believe that the manufacturing process is the main reason for the 4-year jump of Cyber Pickup.
Moreover, it is very likely that it is the problem of the production process that caused the rust of the aerospace stainless steel of the invincible ox X.
From the principle of rust prevention, we can see that the key is the ratio of different element materials, so that stainless steel can meet the requirements in the formation and strength of oxide film.
There is only one reason for the rust of stainless steel, that is, the well-proportioned components are destroyed.
Therefore, the reason for the rust of the cyber pickup truck is likely to be that during the production and assembly process, impurity dust has been stained on the surface of the stainless steel.
Of course, it is not that Tesla's quality is not good, but that the new model and new process are put into production for the first time, and there will inevitably be a process of debugging and optimization of the process and process.
And these first batch of cyber pickup truck owners who have been entangled in rust problems are estimated to be accompanied by this headache throughout the whole process.
Tesla's official response is that there is no good solution, so I can only go back to the repair center to re-polish and polish, and if the rust is regenerated, I will re-polish it....
The stainless steel skin of the Cyber pickup is 3mm thick, so this calculation is only enough to grind about 100 times.
Moreover, if the grinding process is not standardized, there will be fine impurities and dust that will continue to pollute the stainless steel, and it will be more easy to rust later.
Now Tesla's official can't guarantee the process, let alone the outside three-party sheet metal spray repair workshop.
As a result, rain or car wash (long-term retention of moisture in the crevices) has become the biggest killer of cyber pickups.
If you really want to enter the country, the life of the Cyber pickup is estimated to be less than 15 years and forced to be scrapped, and it is necessary to really "watch the sky and eat".
In particular, it is not recommended for southern users who have the rainy season.
Or look at it from another angle, the cyber pickup truck is popular, and the film shop makes a lot of money.