When Need To Replace The T38 Carbide Button Bit?
The T38 carbide button bit?is a type of drill bit commonly work?in rock drilling, particularly for mining, construction, and other heavy-duty applications. The tips of the T38 bit use?high-quality carbide, which enhances the bit's durability and resistance to wear. Especially when drilling in hard, abrasive rock.?The carbide buttons offer extended tool life compared to traditional steel bits, reducing the frequency of replacements. The timing for replacement depends on several factors, such as the rock formation and the specific drilling conditions.
When Need To Replace The T38 Carbide Button Bit?
Observe the wear degree of?carbide buttons
For cutting buttons that use?materials like?cemented carbide, replacement is necessary when the wear height reaches a certain percentage. When the wear height of buttons?exceeds about 1/3 of the original height, it will reduce the rock breaking ability. For example, a button?with an initial height of 10 mm, when worn to less than about 7 mm. Then you?will find it difficult to effectively cut into the rock during drilling, resulting in reduced drilling efficiency.
Check the damage of the cutting buttons
l Button?cracks: Replace if?there is cracks on the?cutting buttons, even if they are tiny.?Because the cracks can easily expand under the impact force during drilling, eventually leading to complete damage to the bit. Especially in the case of high-frequency impact drilling, such as when using a drilling rig. So?the cracked buttons?may fall off and damage the borehole wall or other normal cutting buttons.
l Button fall off: When a cutting buttons fall off?from the drill bit body, it will affect the drilling efficiency of the drill bit.?And the fall off buttons may also get stuck in the drill hole, causing serious problems such as drill sticking. Therefore, once you find drill bit fall off, please stop drilling immediately.?And?check?the condition of the remaining cutting?buttons, and?replace the drill bit.
Observe drilling efficiency and quality
l Drilling speed reduction: When?the drilling speed?is significantly slower under the same rock conditions and drilling parameters.?It may because of the?wear or damage of the?buttons. Because the worn or damaged buttons cannot effectively break the rock, which hinders the drilling process.
l Poor drilling quality: If the drilled hole wall is not smooth, with obvious steps or many broken potholes. This may be due to uneven wear of the button?or?the damaged button?irregular damage to the hole. In addition, if the drilled hole diameter becomes larger or smaller and deviates from the design requirements. It may also be a problem with the cutting button.
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