Kehua provides you with the best metal heat treatment equipment
Industry is an indispensable industry in human society. Nowadays, metal heat treatment equipment can be seen everywhere in production. Many industries need it very much. Today, Xiaobian recommends a heat treatment equipment that not only has good performance but also is very energy-saving. Developed, let's take a look! Heat treatment equipment Metal heat treatment is to heat the metal workpiece in a certain medium to a suitable temperature, and after maintaining it at this temperature for a certain period of time, it is cooled at different speeds. By changing the surface of the metal material or internal organizational structure to control a process of its performance. Metal heat treatment equipment - Kehua Common concept 1. Normalizing: heating the steel or steel to the critical point Ac3 (for hypoeutectoid steel) or Accm (hypereutectoid steel) above 30 ℃ - 50 ℃, after holding for a suitable time, in The heat treatment process of uniform cooling in free-flowing air is normalizing. The structure after normalizing: hypoeutectoid steel is F+S, eutectoid steel is S, hypereutectoid steel is S+Fe3CⅡ normalizing and complete annealing. The difference is that the cooling rate is faster, the purpose is to normalize the steel structure, also known as normalization. 2. Annealing: The hypoeutectoid steel workpiece is heated to 20-40 degrees above AC3, and after holding for a period of time, it is slowly cooled with the furnace (or buried in sand or cooled in lime) to a heat treatment process of cooling in air below 500 degrees 3. Solution heat treatment: Heat the alloy to a high temperature single-phase region and keep it at a constant temperature, so that the excess phase is fully dissolved into the solid solution, and then rapidly cooled to obtain a supersaturated solid solution. Heat treatment process 4. Aging: The alloy undergoes solution heat treatment or cold plasticity After deformation, its properties change with time when placed at room temperature or slightly higher than room temperature. 5. Solution treatment: fully dissolve various phases in the alloy, strengthen the solid solution and improve toughness and corrosion resistance, eliminate stress and softening, so as to continue processing and forming The strengthening phase is precipitated, hardened, and the strength is increased 8. Tempering: The quenched workpiece is heated to an appropriate temperature below the critical point AC1 for a certain period of time, and then cooled by a method that meets the requirements to obtain the required structure and properties of the heat treatment process 9. Carbon of steel Nitriding: Carbonitriding is the process of simultaneously infiltrating carbon and nitrogen into the surface of the steel. Traditionally, carbonitriding, also known as cyanidation, is widely used in medium-temperature gas carbonitriding and low-temperature gas carbonitriding (ie, gas soft nitriding). The main purpose of medium temperature gas carbonitriding is to improve the hardness, wear resistance and fatigue strength of steel. Low-temperature gas carbonitriding is mainly nitriding, and its main purpose is to improve the wear resistance and seizure resistance of steel. 10. Quenching and tempering treatment: Generally, the heat treatment that combines quenching and high temperature tempering is called quenching and tempering treatment. Quenching and tempering treatment is widely used in various important structural parts, especially those connecting rods, bolts, gears and shafts that work under alternating loads. The tempered sorbite structure is obtained after quenching and tempering treatment, and its mechanical properties are better than the normalized sorbite structure with the same hardness. Its hardness depends on the high temperature tempering temperature and is related to the tempering stability of the steel and the size of the workpiece section, generally between HB200-350. 11. Brazing: a heat treatment process that uses brazing filler metal to bond two workpieces together Metal heat treatment equipment - Kehua You don't have to worry about which metal heat treatment equipment to choose, choose Kehua, buy it with peace of mind, buy it Just earn it, believe it, it will definitely bring you the best equipment and services!