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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 ...

How to Prevent Heat Treatment Corrosion and High Temperature Oxidation Of Aluminum Alloy?

Aluminum alloy heat treatment is generally carried out in a nitrate furnace or a vacuum furnace. It often causes corrosion on the surface of the parts, and even black spots and holes appear. The corrosion forms of aluminum and aluminum alloys are mainly pitting corrosion, intergranular corrosion,...

Performance Characteristics and Uses of Industrial Pure Copper

The reserves of copper in the earth’s crust are relatively small, but copper and its alloys are the earliest metals used in human history. Historians once used copper utensils as a symbol to divide the development stage of human society-the Bronze Age. Copper and copper alloys used in moder...

Introduction of the Various Parts of the Vacuum Furnace

The vacuum furnace in the usual test if liquid exists, need a liquid evaporation process (high vacuum without heating), can gasification off the long vacuum to achieve high vacuum (other stability), if the target pressure for a long time, consider the system and Rhots pump, you can directly measu...

Common Vacuum Measurement Methods of Vacuum Furnace

1. Compression Vacuum Gauge The compression vacuum gauge is connected with a capillary closed at the top, the lower end is connected with a port of the “Y” tube, and the lower part of the “Y” tube is connected with a mercury reservoir. When in use, connect the vacuum syste...