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2023-08-23

What are the common steel grades for B22 and B25 hexagonal drill rods?

The commonly used steel type for B22 and B25 hexagonal drill rods is 55SiMnMo steel, which has high elasticity and fatigue strength under certain conditions.

2023-08-21

Effect of Decarburization on the Service Life of 55SiMnMo Drill Rod

The drill rod is a key component in rock drilling and blasting. There are many factors affecting its service life, and surface decarburization is one of the unfavorable factors.

2023-08-17

Factors affecting heat treatment quality of rock drilling tools

Factors affecting the heat treatment quality of rock drilling tools include structural design of rock drilling tools, quality control of raw materials, quality assurance of technical documents, quality control of process materials, process execution, equipment operation status, operator level and status, etc.

2023-08-16

Rock Drilling Tools Heating Operation Guide

The heating operation has an impact on the internal and external quality of rock drilling tools. Correct selection of heating methods, control of temperature and heating time, adoption of protective measures and subsequent processing steps are all key factors.

2023-08-14

Causes of Hole Deviation in Water Well Construction

The causes of well deviation are geological factors, drilling pressure, and equipment installation.

2023-08-08

What are the indicators that affect the failure of coal cutter picks?

The failure of coal cutter picks mainly depends on the strength of coal and rock, coal rock contact strength, the elastoplasticity and brittleness of coal and rock mass, etc.
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