What is the Principle of Automotive Compression Restoration Technology?
3 Answers
The principle of automotive compression restoration technology is the metal sheet restoration technique without putty, with the core process being the flattening of the metal sheet without thinning it. Below is an introduction to the related content: 1. Advantages: After restoration using this technology, it can achieve a level of seamless repair. This repair technique involves no painting or metal sheet work, is cost-effective, and delivers excellent restoration results. Dents on the car can be quickly repaired, utilizing tin soldering for the repair. 2. Metal Sheet Repair: Metal sheet repair involves restoring the deformed parts of the car's metal shell. For example, if the car's outer shell is dented, it can be restored to its original shape through metal sheet work, followed by the application of specialized paint to make the deformed metal surface look as good as new, matching the undamaged areas.
A few days ago, I came across this technology while repairing a car. Simply put, it uses specialized hydraulic equipment to press a deformed cylinder block back to its original shape, with precision similar to how a plastic surgeon repairs a fracture. Metals have elastic memory, and applying pressure at a specific temperature causes the crystal lattice to realign. This method saves materials and is more environmentally friendly than traditional cylinder boring, while also preserving the engine's original factory hardness. I've personally seen a bent engine bracket restored with an error margin of less than one-tenth the width of a human hair. The key is to use a dial indicator to monitor the deformation in real-time, and professional shops are equipped with this precision instrument.
As a car enthusiast who has been into modifications for twenty years, I think the most brilliant aspect of this technology is 'overcoming hardness with softness.' Instead of forcefully cutting the metal, it applies continuous pressure to the deformed area for 72 hours, allowing the metal to slowly creep back into shape. The principle is similar to repeatedly bending a deformed paperclip back, but it requires controlling the hydraulic pressure within the material's yield limit. Last time when repairing the cylinder head of my classic car, the mechanic said it was like giving the metal a deep massage—smoothing out a 0.2mm dent without compromising structural strength.
