- Positive fire: the steel or steel parts heated to a critical point AC3 or ACM above the appropriate temperature to maintain a certain amount of time in the air after cooling, to obtain the pearl body tissue heat treatment process.
- Refring: Heating the sub-co-analysis steel work pieces to 2040 degrees above AC3, after a period of insulation, with the furnace slowly cooled (or buried in sand or lime cooling) to 500 degrees below the heat treatment process in the air cooling
- Solid-soluble heat treatment: the alloy is heated to a high temperature single-phase zone to maintain the constant temperature, so that the excess phase is fully dissolved into the solid solution, and then quickly cooled down to obtain the heat treatment process of the oversaturated solid solution
- Age: The performance of an alloy changes over time when placed at room temperature or slightly higher than room temperature after solid-soluble heat treatment or cold plastic deformation.
- Solid solubility treatment: make the alloy in a variety of phases fully dissolved, strengthen the solid solution and improve toughness and corrosion resistance, eliminate stress and softening, in order to continue processing molding
- Time-caused treatment: in the strengthening phase of the temperature heating and insulation, so that the strengthening phase precipitation precipitated, can be hardened, improve the strength
- Quenching: A heat treatment process in which the work parts are converted to unstable tissue structures such as marsomes in all or a certain range within the cross-section after the steel has been cooled at an appropriate cooling speed
- Re-ignition: The quenched work piece is heated to an appropriate temperature below the critical point AC1 for a certain period of time, and then cooled by the required method to obtain the required tissue and performance of the heat treatment process
- Carbon-nitrogen co-permeation of steel: Carbon-nitrogen co-permeation is the process of penetrating carbon and nitrogen into the surface of steel at the same time. Customary carbon-nitrogen co-permeation, also known as cyanide, is currently used in medium-temperature gas carbon-nitrogen co-permeation and low-temperature gas carbon-nitrogen co-permeation (i.e., gas soft nitriding). The main purpose of carbon-nitrogen co-permeation of medium temperature gas is to improve the hardness, wear resistance and fatigue strength of steel. The co-permeation of carbon-nitrogen in low-temperature gas is mainly nitrogen seepage, and its main purpose is to improve the wear resistance and bite resistance of steel.
- Quality treatment: It is generally customary to combine quenching with high temperature re-ignition heat treatment called quality treatment. Quality treatment is widely used in a variety of important structural parts, especially those working under the cross-change load of the connecting rod, bolts, gears and shafts. After the conditioning treatment, the re-ignition soot tissue is obtained, and its mechanical properties are superior to that of the same hardness of the positive resusor body tissue. Its hardness depends on the high temperature tempering temperature and is related to the tempering stability of the steel and the cross-sectional size of the work piece, generally between HB200350.
Brazing: A heat treatment process in which two work parts are bonded together by brazing material