To understand the rock drilling tool industry, first understand the development history of the drilling tool industry
Divided in chronological order, the development of my country's rock drilling tool industry has gone through four stages
Today, I will first enumerate and explain the first initial stage.
Early stage of business (1950~1964)
The initial stage of my country's rock drilling tool industry started with the introduction of Soviet technology in the early 1950s. In 1950, in order to meet the construction needs of resisting U.S. aggression and aiding Korea, Fushun Steel Plant rolled carbon hollow brazing for the first time.
Steel, and began to produce small batches; in 1951, the trial production of the Soviet-style old-line drill bits with cemented carbide sheets began. Due to the poor production conditions, poor product quality and low output at that time, in addition to partially meeting the needs of military construction, the rock drilling tools needed for domestic industrial construction still had to be imported from abroad. At that time, the production of rock drilling tools in my country was not an industry, and the production and manufacturing departments of the enterprises were not able to build special production workshops.
In 1955, the Shenyang Pneumatic Tool Factory, which was built with the aid of the former Soviet Union, started construction. In October 1956, the first domestic light pneumatic rock drill rolled off the assembly line, and the rock drill began to enter the domestic mining production field in large quantities. After 1958, the domestic industrialization construction has heated up significantly, and the demand for drilling tools products in mining, highway, hydropower, military construction and other rock drilling projects is increasing, and the annual consumption of IH22mm cone drill rod is about 3
200,000 pieces, equivalent to about 28,000 tons of hollow brazing steel. Since there was no professional hollow steel production workshop in China at that time, the contradiction between supply and demand of hollow brazing steel was very prominent. In order to meet the needs of industrial construction, the state began to import hollow brazing steel in batches, and allocated them to the users to process the drill rods themselves according to the plan. Because most of the units used are pneumatic forging and drilling machines, the drilling equipment and process technology are very backward, the quality of the processing drill rods is very poor, and the consumption is very large. In mines, the drill rods of metallogenic vehicles are often sent underground, and the broken drill rods of the car are pulled up. This phenomenon not only wastes a lot of foreign exchange, but some mines often stop production due to the lack of timely supply of drill tools. In order to change as soon as possible the backwardness of the technical process and product quality of rock drilling tools in my country, the former Ministry of Metallurgical Industry started in September 1964 in the new Fushun Iron and Steel Plant (now Fushun New Iron and Steel Company), Guiyang Iron and Steel Plant (now Guiyang Special Steel Company) , Lianyuan Steel Plant (now Lianyuan Iron and Steel Group Company) and other 10 medium-sized steel production enterprises have set up trial production of hollow brazing steel; at the same time, the Exploration Department of Beijing Institute of Geology, which was affiliated to the former Ministry of Geology and Minerals, also began to develop "new cemented carbide drill bits". Research work; the former First Ministry of Machinery Industry Xuanhua Pneumatic Machinery Factory, the Ministry of Metallurgical Industry Sha Mining Research Institute, Jiaxing Pneumatic Tool Factory also began to develop underground reel hole rock drilling tools; Xuanhua Pneumatic Machinery Factory and Anshan Iron and Steel Mining Research Institute The joint development of large-hole through-hole open-air DTH drilling rigs and roller cone drilling rigs and their drilling tools began. China's rock drilling tools and drilling tools industry began to move out of the initial stage of entrepreneurship and toward the direction of industrialization and industrialization.
