You are here: Home » News » News » How can we use the DTH hammer bit?

How can we use the DTH hammer bit?

Views: 152     Author: Site Editor     Publish Time: 2022-07-12      Origin: Site


The cemented carbide column teeth inlaid on the DTH hammer bit require high toughness, so the cemented carbide with high cobalt content is used, including YG10, YG11, YG15, etc. Coarse-grained YG8c cemented carbide can also be used. Its performance is: HRC88, σ bending = 1170MPa, σ pressure = 2830MPa.

What is the reason for the frequent loss of teeth and broken teeth of the alloy ball teeth of the DTH hammer bit?

What is the maximum air pressure for a DTH hammer bit?

What is the role of DTH hammer bit?

What is the reason for the frequent loss of teeth and broken teeth of the alloy ball teeth of the DTH hammer bit?

The early scrapping of DTH bits such as broken teeth and broken teeth are abnormal losses, which are caused by several major factors:

1: The rock conditions are unclear, the selected product type, the alloy teeth are unreasonable, and the alloy teeth are broken due to insufficient alloy strength.

2: There is a problem with the internal quality of the alloy or the material selection of the alloy is incorrect.

3: The DTH hammer bit damages the quality of the alloy product during processing.

4: The operation method during the rock drilling process is unscientific, the pressure is too large when opening the hole, the pumice stone is pried with the drill bit, the alloy is blunt and continue to be used, etc.

What is the maximum air pressure for a DTH hammer bit?

The DTH hammer bit is talking about the displacement. The pressure of the low air pressure impactor is generally between 0.5-1.2Mpa. If the pressure is too low, the impactor will not impact, that is, the piston will not move. If the pressure is too high, the internal parts of the impactor will be easily damaged. damage. Both the 90 impactor and the 110 impactor can be equipped with a 110 drill bit. The 90 impactor requires a displacement of not less than 6 cubic meters, and the 110 impactor requires more than 11 cubic meters of displacement.

What is the role of DTH hammer bit?

The essence of the DTH hammer biting rig is to make the impactor dive into the hole during the rock drilling process to reduce the energy loss caused by the impact energy transmitted by the drill rod, thereby reducing the impact of the hole depth on the rock drilling efficiency.

The DTH hammer bit cooperates with the air compressor, which greatly improves the engineering efficiency, which is usually 15~20 times that of the hydraulic drill. If a well is drilled at the same time, if an ordinary hydraulic drilling rig takes 15 days, it will only take one day with a DTH hammer biting rig. Greatly save labor and fuel consumption costs.

Zhuzhou Jinxin is the high-quality supplier of Sany, Zoomlion, CREC, Zijing Mining, China Coal. The drill bits are exported to the United States, Canada, Australia, Russia, South Africa, South America, EU, Korea, Japan, Vietnam, India more than 50 countries.

The company has passed SGS factory inspection certification, ISO9001- 2015 quality management system certification, and obtained 36 product invention patents. It has been rated as a national high-tech enterprise in China. The Jinxin brand has been awarded a well-known brand in the hardware machinery industry in China. It is an AAA-level contract and trustworthy enterprise. The governing unit of the Chinese Scientists Association.


QUICK LINKS

PRODUCT CATEGORY

CONTACT US

 Yuyu
 +86 133-9733-9096
 +86 133-9733-9096
+86 133-9733-9096
 13397339096@ojinxin.com

SEND US MESSAGE

CONTACT US
Copyright  2021 Zhuzhou Jinxin Group Cemented Carbide Co., Ltd.  Sitemap | Support By Leadong