Is it better to make hard rail or line rail for large mechanical equipment processing?

In fact, hard track and line track nothing good or bad to say, can only say suitable for not suitable, because their important point is different. Let’s take a look at their strengths and weaknesses.

1. Advantages and disadvantages of hard rail and its application.

Hard rail sliding contact surface is large, good rigidity, seismic ability, bearing capacity, suitable for heavy load cutting.

Hard rail is dry friction, because the contact surface is large, the friction resistance is also large, the speed of movement can not be too fast. At the same time, it is easy to produce crawling phenomenon, and the clearance of moving surface will lead to machining error. The maintenance of the machine tool track is a top priority. Once the track lubrication is insufficient, it will cause the track to burn or wear transition, which is damaged to the accuracy of the machine tool.

The application of hard rail is suitable for heavy cutting, large molds, high hardness workpiece, and general precision workpiece.

2. Advantages and disadvantages of the line track and its application.

Now a lot of machine tools run fast, mainly empty speed, this is dependent on the line rail credit; Zero clearance between tracks can be achieved after pretightening treatment, with high precision. In terms of service life, the line rail is much higher than the hard rail.

The line rail bears the cutting force relative to the hard rail is smaller, just for the hard rail, in fact, now a lot of machine tool line rail has increased its bearing capacity.

The application of line rail is suitable for high-speed machine, high-speed cutting, suitable for processing products, small molds. Now more large mechanical equipment processing is the use of rail.

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