1. Reasonably choose the belt type
Different types of abrasive belts are selected for different workpiece materials and different workpiece shapes. The selection of abrasive belt types is mainly based on the material of the substrate, the
There are four aspects to choose from, such as the type of adhesive and the method of abrasive belt jointing.
2. Choose the right particle size
Only by selecting the appropriate abrasive belt particle size can the surface quality of the workpiece be ensured and the service life of the abrasive belt be improved. If the grit size of the selected abrasive belt is too small, the processing cannot be guaranteed.
The surface quality of the workpiece; if the particle size of the abrasive belt is too large, the abrasive belt will be easily wrinkled and broken during use, which will reduce the service life of the abrasive belt.
3. Dudu selection of multi-pass abrasive belt grinding process
If a workpiece is ground with a multi-pass abrasive belt, the grain size of the abrasive belt used in the subsequent pass can only skip two grain sizes compared to the previous pass. Only in this way can the abrasive belt grinding be fully utilized
The high efficiency can ensure the shape and size of the workpiece and the surface quality of the workpiece.
4. The distribution of grinding removal in the multi-pass abrasive belt grinding process
Two processes: the distribution ratio of the front and rear lanes is 85/15;
Three processes: the distribution ratio of front and rear lanes is 65/25/10;
Four processes: the distribution ratio of front and rear lanes is 50/30/12/8
5. Selection of diamond sanding belts running direction
When using lapped abrasive belts, make sure that the running direction of the abrasive belt is the same as the direction marked on the back of the abrasive belt, otherwise the abrasive belt may break prematurely during use and affect the surface of the workpiece. surface quality.
How to use the abrasive belt correctly to prolong its life?
The storage of the abrasive belt is important, but if the abrasive belt cannot be properly handled before use, its performance will be seriously affected.
Belt suspension
The belt should be hung for a minimum of 2-5 days before use, its purpose is to eliminate curling caused by packaging. Hang the unpacked abrasive belt on a 100-200mm diameter pipe or special
on the belt support. The length of the pipe should be greater than the width of the abrasive belt, otherwise the abrasive belt will easily fall off or produce a horn; the pipe should be in a horizontal state, otherwise the edge of the abrasive belt will be easily damaged.
The ambient temperature and humidity of the suspended abrasive belt should meet the storage conditions of the abrasive belt. The easiest way is to use several 40w or 64w light bulbs in a sealed room to keep dry.
Visual inspection
Before using the suspended abrasive belt, the necessary appearance quality inspection should be done to check whether the abrasive belt joint is smooth and firm; there are no holes, sand lumps, lack of sand, glue spots and wrinkles on the surface of the abrasive belt.
Folding; whether the edge of the abrasive belt is neat and free of cracks, if there is a small crack on the edge, it will not affect the use after cutting (cut into a circular arc).
The use of abrasive belts
Only by selecting and using the abrasive belt reasonably, and correctly solving various problems in the use of the abrasive belt, the advantages of abrasive belt grinding and the best grinding of the abrasive belt can be brought into play.
performance, in order to ensure the quality of the processed workpiece.
Post time: May-04-2022