Knowledge

how to support with anchor rods? If you encounter special geological conditions during tunnel construction, you need to analyze according to the geolo

The self-drilling hollow anchor is a very important member of the rock and soil anchor family, mainly made of high-strength steel pipe rolling. Grouti

Gender Every matched pair of threads, external and internal, can be described as male and female. For example, a bit has male thread, while the matchi

The self-drilling anchor is mainly composed of bit,rod, plate and a nut.It can be equipped with Centralizer and Connecting sleeve as needed. The const

In top hammer tools, the rock drilling machine is located at the top of the drill tool, and the piston of the rock drill directly hits the tail end of

In the field of excavation and rock drilling, brazing heads are indispensable, and the types of brazing heads are even more diverse, generally accordi

Now in various excavation and rock drilling fields, the use of a slotted head is quite common, and a slotted head can be seen everywhere in various la

Cross brazing head is a kind of mining brazing head, mining workability determines that it must be a strong tool, so its raw materials are cemented ca

1. The mold satin hammer is replaced by a free forging hammer, which solves the difficulty of incomplete equipment. 2. The type anvil used is conduciv

The head body is made of high-quality alloy steel, and different alloy grades are selected according to rock conditions, suitable for various grades o

1. After heating 630kg of steel ingots to 800-1100°C in the furnace, draw them to ∅200 and cut them into two sections. Heat to 850-1120 ° C. 2. Forge

The cross brazing head is a mining brazing head. Strong radial abrasion resistance. The use of high-quality cemented carbide and steel, with all kinds