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Spring Heat Treatment Quality Inspection and Operation Precautions
Spring heat treatment quality inspection includes inspection before heat treatment and inspection after heat treatment. 1. Quality Inspection Before Heat Treatment: The rolled surface of steel is often the surface after the spring is made, so there should be no cracks, folds, scars, hair lines, b...
The Role of Heat Treatment in The Reducer
Heat treatment is a very important link in the manufacture of reducer, but many users do not understand the role of this heat treatment, so in order to facilitate everyone’s understanding, the following is an introduction to its role. 1. Surface quenching: common surface quenching methods i...
The Main Factors Affecting the Degree of Graphitization of Cast Iron
Because the crystal structure of iron is very different from that of graphite, and the crystal structure of iron and cementite is closer, ordinary cast iron can only get white cast iron under normal casting conditions, but gray cast iron is not easy to obtain. Therefore, it is necessary to promot...
Advantages, Temperature and Time of Carbonitriding of Metallic Materials
1. Compared with gas carburizing, carbonitriding has the following advantages: 1) The same infiltration layer depth can be obtained at a lower temperature and in the same time; or at the same processing temperature, the co-infiltration rate is faster. 2) Carbonitriding does not precipitate carbon...
The Difference Between Austempering and Graded Quenching
Austempering: After heating the steel to make it austenitized and homogenized, it is quickly cooled to a certain temperature in a given bainite transformation temperature zone, and maintained at that temperature for a certain period of time to make it undergo isothermal transformation to form she...
Application of Metal Powder Injection Molding
Due to the use of injection molding, the metal forming process can produce very complex parts with various alloy materials. Its complexity far exceeds any metal forming process including other powder metallurgy processes, including: various external grooving, External thread, tapered outer surfac...
Common Steel Materials and Heat Treatment Process For Machine Tool Gears
Machine tool gears can be divided into low-speed and low-load gears, medium-high-speed and medium-load gears, high-speed impact load gears, and large-section gears. The heat treatment processes of gears for different purposes are different. The heat treatment processes of various gears will be in...
Introduction to Heat Treatment of Martensitic Stainless Steel
Commonly used martensitic stainless steel has a carbon mass fraction of 0.1% to 0.45%, and a chromium content of 12% to 14% (mass fraction). It belongs to chromium stainless steel, usually referred to as Cr13 stainless steel. Typical steel grades are 1Cr13, 2Cr13, 3Cr13, 4Cr13, etc. This type of ...
What Factors Should be Considered in the Design of Large-scale Quenching and Tempering Heat Treatment Process
During the quenching and tempering heat treatment of large parts (diameter ≥100mm), due to the limitation of hardenability, heat dissipation conditions and quenching medium, the core is allowed to have lower bainite, fine pearlite or ferrite and upper bainite; at the same time, Large parts have m...
What Requirements Does the Deep Carburizing Heat Treatment Process Have on the Heat Treatment Equipment?
1. Requirements For Temperature and Carbon Potential Control Methods 1).Temperature control method. The temperature control adopts the main control method inside the furnace (most domestic equipment adopts the main control method outside the furnace). Furnace main control refers to a temperature ...