Bit is a kind of commonly used hardware tool products, although the bit is relatively small, but the modern industrial construction industry is inseparable from it, the bit in the use process also needs to pay attention to some items, in order to ensure that it can be used normally, but also to ensure the safety of its use, the bit of attention is used. ?
Precautions for the use of the bit:
1. Work in different rock strata, choose different types of bit, axial pressure and speed according to the soft and hard of lithology; work in the soft rock layer, replace the bit in the way, check the old bit's palm back and the alloy tooth on the tooth wheel strictly. Drill bit; when there are cracks in rocks or rock cracks and goaf areas caused by blasting, reduce axial pressure and speed and prevent tooth breakage.
2, when drilling rig perforation operation, we must comply with the principles of three factors of perforation, including wind pressure, axial pressure and speed, and match parameters recommended by drill bit samples.
3, the drill bit in the next well before the inspection of the appearance of the various parts, verify the bit thread end and the bit packing box and the quality of the certificate on the factory number is consistent; bit teeth appearance has no sticker new sharp trademark, in order to prevent counterfeiting.
4, drill bit should be stored reasonably on drilling rig to prevent dust and other debris from entering the drill bit.
In 5, the new drill, low axial compression and low speed running in 20-30 minutes, and then gradually increase the use of pressure to the normal axis.
6. When new drill holes are opened, we should pay attention to removing the debris around the hole (such as rock, waste metal, etc.). At the same time, it is necessary to turn slowly, close to the surface of the ground, prevent the drilling and impact the damage to the bit.
7, when drilling tools are in the hole, it is strictly prohibited to reverse, prevent drilling from falling.
8. When the drill suddenly stops working in the hole and air compressor, the rock slag is very easy to enter the bit, so it is strictly forbidden for a long time to turn, resulting in the wear of the bearing, repeated crushing of the rock slag (or sticking), and the bit wear is accelerated.
9, during the normal perforation operation, the main air path of the air compressor can not be seriously leaked, so as to ensure enough air volume and wind pressure and prolong the service life of the drill bit.
10, strictly prohibit the use of bending drill pipe, so as to avoid drilling three teeth palm force uneven, accelerate drill damage.
11, the bit storage should be moisture-proof and ventilated. In the course of handling, no bump cone and thread.
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Copyright:Zhejiang Dehui Tools Co. Ltd.