27

2019-06

Insufficient Surface Hardness And Soft Point Problems

Insufficient hardness and soft spots of induction hardened parts are generally caused by the following factors: (3 points) Decarburization of the surface of the part; The original original tissue is coarse; the heating temperature and the cool...

26

2019-06

Seven Methods To Reduce Heat Treatment Deformation-3

Five, reasonable clamping method and fixture Objective: to make the workpiece heating and cooling evenly, to reduce the uneven thermal stress, uneven tissue stress, to reduce the deformation, to change the clamping method, the disk parts ar...

26

2019-06

Seven Methods To Reduce Heat Treatment Deformation-2

Second, temperature controlled normalizing or isothermal annealing If the normalizing hardness is too high, with mixed crystals, a large amount of sorbite or Wei's structure, it will increase the deformation of the inner hole, so the forgin...

26

2019-06

Seven Methods To Reduce Heat Treatment Deformation-1

The heat treatment process is an important means to obtain excellent properties of various metal materials. In many practical applications, the rational selection of materials and various forming processes can not meet the mechanical, physical...

25

2019-06

Quenching Cooling Medium

Quenching and cooling medium is used for the workpiece quenching and cooling medium. Selecting suitable quenching medium and cooling parameters is an important link to ensure quenching quality and avoid quenching defects. Injection cooling is ...

25

2019-06

Induction Quenching Process

1. Simultaneous heating method: it is required to heat the workpiece part in the inductor (coil) or its adjacent position, keep the relative position of the inductor and the workpiece unchanged, switch on the alternating current in the inducto...

25

2019-06

Influence Of Stress Distribution State On Performance Of Parts

1. The induction quenching process can make the surface of the parts to obtain a higher residual compressive stress; 2. Surface strengthening not only directly improves the strength and fatigue limit of the surface layer, but also reduces t...

25

2019-06

Induction Heat Treatment To Improve The Strength And Life Of Parts

The induction heat treatment has a fast heating speed and can obtain refined or ultra-refined austenite grains. Many studies have shown that when ferrite is transformed to austenite, increasing the heating rate will increase the nucleation rat...

25

2019-06

Induction Heating Application

The heat treatment process realized by induction heating is called induction heat treatment. According to different applications, it can conduct part or whole induction quenching of the workpiece, annealing, normalizing, tempering and quenc...

25

2019-06

Principle Of Induction Heating

1. induction heating physical basis: put the metal conductor in the coil with alternating current, according to the principle of electromagnetic induction, under the action of alternating magnetic field, it can produce induction current (eddy ...