10
2020-11
Rock drilling technology is the forerunner of the extractive industry. my country is the country that invented gunpowder and percussion drilling technology ("Drill"), and has written the glorious history of human percussion drilling technology. Modern rock drilling and blasting technology and rock drilling equipment have become the main means for mankind to obtain resources from the lithosphere and open up space for survival and development underground. The construction of my country's rock drilling technology and rock drilling equipment industry started from the study of Soviet technology after the founding of New China. At present, my country's brazing tools, rock drilling machinery, and cemented carbide industries have many innovative technologies, and many products can compete with similar products from world-famous companies. The "bottleneck" of long drilling tools such as full-face tunnel boring machines (TBM), full hydraulic rock drilling rigs, and heavy-duty drill rods for drilling rigs and cemented carbide monolithic drill rods that we have faced for a long time has been or is about to achieve important breakthrough. This article briefly reviews the modern development process of my country's rock drilling technology and rock drilling equipment industry over the past sixty years.
2020-11-10
10
2020-11
The trend of manufacturing transfer is closely related to the future and destiny of the country
The trend of manufacturing transfer is closely related to the future and destiny of the country. There have been four large-scale manufacturing migrations within the scope, and innovation factors are an important driving force for the large-scale manufacturing migration. At present, the reality facing manufacturing upgrades and migration is the decline in total factor productivity.
2020-11-10
11
2020-11
In various mining or exploration industries, the drill bits used are all consumable production tools. The quality and life of the drill bit determine the work efficiency and operating cost of the drill. In 1960, wire rope percussion drills were mainly used in mining operations in our country. The drilling technology was relatively backward. This situation directly affected the speed of our country’s construction of the four modernizations. Therefore, increasing the service life of the drill bit is a major factor. Very important thing.
2020-11-11
11
2020-11
How to choose the rotary teeth for rotary drilling rigs
With the rapid development of the domestic rotary drilling industry, the demand for rotary drilling rigs is also increasing. Especially in recent years, the domestic demand for rotary drilling rigs has increased year by year. Because of this, the company's demand for rotary digging gears is also increasing.
2020-11-11
12
2020-11
How to use drill pipe and matters needing attention
1. According to the drilling rig's torque, push-pull force, and the minimum allowable radius of curvature, select a drill rod of appropriate specifications and models.
2020-11-12
12
2020-11
Selection, use and normal maintenance of mine drilling tools
According to the nature of the rock, choose a suitable cemented carbide mine drill bit. Generally speaking, for rock with high hardness, use drill bits with relatively low hardness alloys, and vice versa, use alloy drill bits with relatively high hardness. For extremely hard rocks, if the power of the rock drill is high, you can choose a three-blade or cross bit. At this time, in order to facilitate the unloading, the taper hole of the bit can be 11° or 12°. For the rock with medium hardness and good integrity, in order to improve the work efficiency and reduce the cost, a button bit can be used.
2020-11-12
09
2021-11
As a form of road plane intersection, roundabout is widely used in our country.
2021-11-09
09
2021-11
How to choose the right tool for the machining center?
Machining center tools are mainly divided into two categories: milling tools and hole cutting tools. The selection of milling tool is mainly the selection of milling cutter type and milling cutter size.
2021-11-09
12
2021-11
(1) there are many drilling tools, including ordinary twist drill, indexable shallow hole drill and flat drill. Ordinary twist drills are usually used to drill holes in machining centers, and ordinary twist drills are mainly composed of working parts and handles.
2021-11-12
12
2021-11
Machining center cutters often use reaming drills to reaming holes.
The main results are as follows: (1) most of the machining centers use reaming drills for reaming, and some also use reaming cutters, such as straight handle reaming cutters for small reaming diameter, tapered handle reaming cutters for medium reaming diameters, and sleeve reaming knives for large reaming diameter.
2021-11-12
No. 9 Anju Road, Jiaming Economic Development Zone, Dongchangfu District, Liaocheng City, Shandong Province
Official WeChat
