Recently, ZJWC Optical Cable Technology Corporation successfully trial-produced round and flat coal-shearer photoelectric composite cables. The products have been tested by authoritative institutions and have reached the domestic leading and international advanced level. They can completely replace imported products. Currently, they have applied for national patents.
The company is the third company in China that has R&D and commercial production of optical fiber composite power cables.
The photoelectric composite cable of the coal mining machine is frequently subjected to various mechanical stresses such as bending and stretching at different angles during operation, which causes the cable core to be broken, especially the optical fiber core. The ZJWC R&D team has on-site understanding of mine working conditions and user needs, and has carried out research on key technologies such as the stress distribution of the cable coexisting unit, the conductor tensile unit and the conductor twisting and untwisting process, high-strength insulation and sheath formulation design. After 2 years Half of the unremitting efforts have overcome the technical bottleneck that the fiber is not resistant to bending and cannot be used in frequent small-radius bending occasions, and solved the non-tension of the sheath (currently the highest tensile resistance in the country is 15N/mm2), bending resistance, and low tear resistance. (Currently the tear resistance is generally 7N) and other issues, successfully developed a high-performance coal shearer photoelectric composite cable that can replace international imports. Tested by Shanghai Coal Science Testing Center, after 9000 bending tests of the shearer photoelectric composite cable, the optical fiber is uninterrupted, and the cable core is not short-circuited or disconnected. After internal testing, the tensile strength of the sheath has reached more than 20N/mm2, and the sheath is resistant to The tearing force is more than 11N, which fully meets the performance requirements of the international high-performance coal shearer photoelectric composite cable, and the price is only about 1/3 of the imported products of the same model and specifications, with excellent cost performance
With the vigorous development of the coal industry and the continuous improvement of the performance of large coal mining machines, it has become a general trend to choose coal mining machine photoelectric composite cables for mining purposes. This high-performance coal mining machine photoelectric composite cable that can replace imported products can meet the needs of customers. This kind of use environment requirements will play a positive role in reducing the cost of coal mining equipment consumption per ton, provide necessary conditions for intelligent and safe mining of mines, create benefits for mining, and have a wide range of application prospects and promotion value.