Mineral high-strength compact chain production technology

Abstract

The invention relates to a mineral high-strength compact chain production technology. The mineral high-strength compact chain production technology comprises the following steps of 1, vertical ring blanking; 2, vertical ring heating; 3, vertical ring single ring weaving; 4, vertical ring welding; 5, vertical ring burr removing; 6, vertical ring extrusion forming; 7, flat ring blanking; 8, flat ring heating; 9, chain weaving; 10, flat ring welding; 11, flat ring burr removing; 12, heat treatment; and 13, stretching. In the process of chain weaving, each vertical ring is sleeved with one flat ring to form a compact chain with the flat rings serving as circular rings and the vertical rings serving as compact rings. Generally, the mineral high-strength compact chain production technology has the advantages of being simple, excellent in mechanical property and high in material utilizing rate.

Description

technical field [0001] The invention belongs to the technical field of chain production technology, and in particular relates to a production technology of high-strength compact chain for mining. Background technique [0002] At present, in some old mining areas, facing the harsh conditions of underground coal mining and development, the mining coal seam is thin, and there are many waste rocks. Facing the current situation of thin coal seam, the height and installed power of the scraper conveyor can hardly be increased, resulting in a significant reduction in mining volume. However, higher requirements are put forward for the quality and variety of circular chains. At present, the power of scraper conveyors in China is developing in an increasingly large direction, and showing a rapid and leaping development trend, but at the same time Large-scale mine-used high-strength round link chains are key components on scraper conveyors and are also vulnerable parts. Due to the extre...

AI Technical Summary

Problems solved by technology

[0002] At present, in some old mining areas, facing the harsh conditions of underground coal mining and development, the mining coal seam is thin, and there are many waste rocks. Facing the current situation of thin coal seam, the height and installed power of the scraper conveyor can hardly be increased, resulting in a significant reduction in mining volume. However, higher requirements are put forward for the quality and variety of circular chains. At present, the power of scraper conveyors in China is developing in an increasingly large direction, and showing a rapid and leaping development trend, but at the same time Large-scale mine-used high-strength round link chains are key components on scraper conveyors and are also vulnerable parts. Due to the extremely harsh development conditions of underground coal mining, the performance requirements for this product are extremely high, that is, the product requires high strength, High wear resistance, high fatigue resistance and other comprehensive properties, therefore, the specifications of mining high-strength round link chains are also getting larger and larger, which promotes the emergence and development of this new chain-making process and technology of compact rings , now it is very difficult to buy forged vertical rings abroad, while the material utilization rate of domestically produced forged vertical rings is low, the bearing capacity is quite different, and the mechanical properties of the manufactured vertical rings are poor