How steel is tempered - one of the most common and simplest methods of hardening the body is a rapid temperature change. The same principle applies to the hardening of steel. By tempering, it is possible to obtain harder steel, sharper, more elastic. Now we will consider the two simplest options for quenching steel in everyday life and without any special difficulties of the technological process. First of all, it is necessary to heat the product red-hot - until the heated billet has bright crimson shades. It's up to you to decide how best to organize this process at home. Heat it in an oven, over a campfire, over a burner. It is necessary to take into account the heating time required for proper and high-quality hardening of steel. Time is determined according to the curve on the graph of a special diagram called "Iron-carbon". If you do not adhere to these parameters, you can overheat the metal and get decarburization, which will lead to the softness of the workpiece and the inability to harden it to the required level.They've got it hot, now it's time to get it out. Carefully take the product and dip it into the pre-prepared engine oil. Lowered, hold for 3-4 seconds, pull out the product, repeat the process. After a couple of dips into the oil, dip the product in as cold water as possible until it cools down completely.In industry, depending on where the product will be used, several hardening methods are used.Low-temperature hardening, medium-temperature and high-temperature hardening.Low-temperature hardening is the heating of steel to 300 degrees with further subsequent cooling process. This method is suitable for products where it is important to maintain cutting properties.Medium temperature hardening is the heating of steel up to 500 degrees, suitable for products in which it is important to maintain elasticity, for example, for springs.High temperature hardening is the heating of steel up to 600 degrees, suitable for products in which it is important to maintain hardness, namely for future metal parts of equipment that will be operated in units operating for a long time with an elevated temperature of the working medium.With any hardening method, it is important to take into account two parameters - firstly, the time at which the product heats up and the temperature at which the process takes place. Everyone wants to find the 1xbet promo code available. Currently, the best code is the one that unlocks the standard welcome bonus: a 100% deposit match up to $130. This offer is arguably the best because it doubles your starting capital, giving you the most flexibility and potential from your first transaction on the site.