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Feb. 28, 2024
The preferred braze for underground mining equipment may vary depending on the model and application. The following are some common types: R25/R28: This is the common type of braze used by underground mining equipment, and is suitable for medium-sized mines and construction projects. R32/R35: These …
Feb. 28, 2024
When evaluating the quality of rock drill rod, consider the following aspects: Tool construction: Compare the fracture of the cutting insert of the rock drill rod to the recommended dimensions, which is generally as narrow as 0.3 to 0.5mm and as deep as 100mm or more. The thinner the rod, the sharpe…
Feb. 28, 2024
When using an R32 51mm thread drill bit on a rock drill, there are several precautions that you should take to ensure safe and effective operation: 1. Check the condition of the drill bit before use to make sure it is not damaged or excessively worn. A damaged or worn bit can cause drilling problems…
Feb. 28, 2024
use φ The following safety precautions should be taken when drilling 45 drill pipes: Before use, the drill pipe should be checked for damage or distortion, and if so, it should be replaced in a timely manner. When drilling, a suitable drill bit should be selected based on the aperture and ensure a g…
Feb. 28, 2024
The taper of the drill rod thread generally refers to the angle of the thread cone, usually expressed in degrees (°). The formula for calculating the taper of the drill rod thread is: Taper = arctan (pitch ÷ π × diameter) × 180°÷π Where pitch refers to the distance perpendicular to the thread axis o…
Feb. 28, 2024
Wear-resistant alloy drill pipe is a type of high-strength and wear-resistant steel drill pipe that is widely used in rock drilling. It is made of a special alloy with high hardness, strength, and wear resistance, which enables it to withstand the harsh environments encountered in rock drilling. The…
Feb. 28, 2024
Circular extended drill rods are typically used with diamond core drilling rigs in the mining and exploration industries. These rods are designed to provide a stable and rigid connection between the drill bit and the drilling rig. The frequency of replacement of these rods depends on various factors…
Feb. 28, 2024
Long drill pipes are essential in large bore drilling as they are used to connect the drilling rig to the drill bit. Here are some of the applications of long drill pipe in large bore drilling: 1. Reach greater depths: Long drill pipes allow drilling rigs to reach greater depths, enabling exploratio…
Feb. 28, 2024
The length of the drill pipe on an air leg rock drill can vary depending on the specific model and manufacturer. Typically, the length of the drill pipe can range from 1 to 2 meters, or roughly 3.3 to 6.6 feet. However, some models may have longer or shorter drill pipes depending on the intended use…
Feb. 28, 2024
The choice of drill pipe material can have a significant impact on the efficiency of rock drilling. The material affects factors such as wear resistance, strength, and weight, which are crucial to the performance of the drill. For example, using a high-strength steel like AISI 4330V in the drill pip…
Feb. 28, 2024
The structure of drill pipe for rock drilling jumbo typically consists of three main parts: the pipe body, the connection, and the tool joint. 1. Pipe body: The pipe body is the main component of the drill pipe and is typically made of high-strength steel to withstand the harsh drilling environment.…
Feb. 28, 2024
What type of rock drill is the T38 70MM firearms thread drill used on? The T38 70MM firearms thread drill is commonly used on hard and abrasive rocks such as granite, gneiss, basalt, and quartzite. The T38 refers to the drill's thread type, which is a standard thread used in the mining and construct…
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