Marble V-shaped blocks are manufactured according to gb4972-85 standard and are generally supplied in pairs. They are a quadrangular body, four working surfaces or four 90 degree grooves with different sizes
the marble V-shaped block is made of excellent "Jinan green" stone by mechanical processing and manual fine grinding. It has the advantages of good precision, long service life and not easy to deform. It is suitable for accurate inspection, accurate measurement, accurate marking and positioning in the machining and parts manufacturing industries
marble V-block is a tool for detecting cylinders. The geometric tolerance in the table refers to the flatness of the bottom surface and the parallelism of the axis of the V-groove to the bottom surface. If necessary, other surfaces can also be machined according to the required accuracy
common specifications of marble V-shaped block (picture of V-shaped frame): 60*60*60, 100*100*80, 160*160*100, 200*200*120, 300*300*150
daily maintenance of marble V-shaped block
1. Marble V-shaped block is very fragile, and it is afraid of the impact and beating of hard objects. Therefore, it should be handled with care during the measurement of workpieces or use at ordinary times to prevent heavy objects such as iron from hitting the working surface, so as to avoid too many pits, affecting its use and affecting its beauty
2. When it is not used for a long time, the marble V-shaped block should be wiped with one-to-one lubricating oil. If there is no one-to-one lubricating oil, it can be replaced by edible oil. When it is used again, it can be wiped dry with a soft cloth. When the surface is stained, it is advisable to clean the stain with some light corrosive agents such as lemon juice or vinegar. It is forbidden to wipe with soap or soda powder and other materials that are vulnerable to the essence of rock
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