Many people refer to C-IASI (China Insurance Research Institute) as the "rim discipline inspection commission" and C-NCAP as the "five-star wholesale department", but in fact, the formation of this impression is not that the standards adopted by C-NCAP and China Insurance Research Institute are different, but that there are differences in test items. Domestic car companies that have long been accustomed to "optimization" according to C-NCAP rules are prone to "rollover" when they are suddenly faced with C-IASI with brand-new test items.
one of the important differences is the frontal offset collision. Like European E-NCAP, C-NCAP adopts 4% offset collision at 64km/h, while C-IASI adopts 25% offset collision at 64km/h consistent with IIHS of American Highway Safety Insurance Association. In this regard, some "malicious" car companies have to do more preparations, swearing and changing into reinforced steel. After all, safety is no small matter (ensuring sales is important)!
Speaking of this, I have to mention that the 25% offset collision is very complicated, and there is a hard injury that many car manufacturers can't solve. It is necessary to meet the safety standards with high-strength hot-formed steel, and the cost should not be too high, which is too difficult ...
What most people don't know is that there is a company with monopoly technology: you need high-strength steel and hot-formed steel to build a car, and you must buy his own.
how much money can he earn from this unique technology? General automobile high-strength steel is 5k yuan/ton, his family sells 8k, and the other 3k is monopoly profit. The annual consumption of hot-formed steel for cars in the world is 3w tons, and China needs 1w tons. Let's experience it.
what's good about hot-formed steel?
this must start with the indexes for evaluating steel: yield strength and tensile strength. Its tensile strength can reach up to 1k5-2k? MPa, about the same strength as a nuclear submarine. Applying it to the key parts of the car body can obviously improve the anti-collision ability and overall safety of the car body, and reduce the weight of the car body while meeting the high standard safety regulations.
brands/models with a high proportion of hot-formed steel in the world:
Volvo XC9, with a utilization rate of over 4%
LECKER 3, 16%
Land Rover found that 13%
Jeep commander, 13%
Haval H7, 11%
Baowo BX7, 11.
why can't others make it?
coating technology to prevent oxidation, he will, others will not. It can be compared with the "true and false Gleevec" in Dying to Survive. Strict protection of patents and huge investment threshold will all lead to "de facto monopoly", which cannot be avoided.
p.s: The patent of this company will expire in 226.
At that time, we will wait and see whether the price of high-strength thermoformed steel will come down and whether more and more vehicles will successfully pass the 25% offset collision test to meet the safety standards ~
This article comes from the author of Chejia, car home, and does not represent car home's standpoint.