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china latest news about How to determine the torque accuracy in tightening operations

How to determine the torque accuracy in tightening operations

April 25, 2024

In industrial production, tightening operation is one of the common assembly processes, and torque accuracy is a key factor in ensuring assembly quality and product performance. How to determine the torque accuracy in tightening operations? Firstly, we need to clarify the concept of torque. Torque ...
china latest news about Correction of heat treatment deformation

Correction of heat treatment deformation

April 24, 2024

Correction of heat treatment deformation - the heat treatment deformation of a workpiece can be controlled and reduced to a certain extent, but can't be completely avoided. Mechanical correction method - using mechanical or local heating methods to cause local micro plastic deformation of the ...
china latest news about Factors affecting heat treatment deformation

Factors affecting heat treatment deformation

April 23, 2024

The changes in volume and shape of the workpiece during heat treatment are caused by the volume expansion caused by the specific volume change during the structural transformation in the steel, as well as the plastic deformation caused by heat treatment stress. Therefore, the greater the heat ...
china latest news about General rules of heat treatment deformation

General rules of heat treatment deformation

April 22, 2024

The trend of quenching deformation When Ms is above, deformation is mainly caused by thermal stress: A cylindrical workpiece with a height greater than its diameter - the height is shortened, the diameter becomes thicker, and ultimately causes a bulging deformation at the waist. Disc parts with a ...
china latest news about Shape distortion in workpiece heat treatment

Shape distortion in workpiece heat treatment

April 20, 2024

There are various reasons for shape distortion in workpiece heat treatment. The release of residual stress during the heating process, as well as the thermal stress, structural stress, and self weight generated during quenching, can cause uneven plastic deformation of the workpiece, resulting in ...
china latest news about Dimensional changes in workpiece heat treatment

Dimensional changes in workpiece heat treatment

April 19, 2024

Different organizations have different volumes. The specific volume table of common organizations is as follows: Organization wc (%) Specific volume at room temperature/(cm³/g) Austenite 0—2 0.1212+0.0033(c％) Martensite 0—2 0.1271+0.0025(c％) Ferrite 0—0.02 0.1271 Cementite 6.7+-0.2 0.130+-0.001 ∈ - ...
china latest news about Heat treatment deformation

Heat treatment deformation

April 18, 2024

Heat treatment deformation of workpieces - mainly caused by heat treatment stress. Factors such as the structural shape of the workpiece, the quality of raw materials, the processing state before heat treatment, the self weight of the workpiece, and improper support or clamping of the workpiece ...
china latest news about What are the advantages of torque angle bolt tightening technology?

What are the advantages of torque angle bolt tightening technology?

April 15, 2024

The torque angle bolt tightening method is a widely used tightening technique in the industrial field, especially in situations where high-precision and high reliability connections are required. This method combines torque control and angle control, ensuring that the bolt reaches the expected pre ...
china latest news about Selection of bolt tightening tools

Selection of bolt tightening tools

April 17, 2024

The selection of bolt tightening tools should follow the following points: (1) Process requires precision. At present, there are two main types of tightening workers: one is pneumatic tightening. Another type is electric tightening, the former has lower accuracy than the latter, and engine bolts are ...
china latest news about Common tightening sequence methods for bolt groups and precautions in application

Common tightening sequence methods for bolt groups and precautions in application

April 16, 2024

The tightening sequence of bolt groups is of crucial importance in mechanical engineering. The correct tightening sequence not only ensures the stability and safety of bolt components, but also effectively prevents failures caused by stress concentration and deformation. This article will discuss in ...
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