rubber cable equipment industry development?

The rubber-sheathed cable equipment industry is China's second largest industry after the automotive industry, with product variety satisfaction and domestic market share exceeding90%. Worldwide, the total output value of China's rubber cable equipment has surpassed that of the United States, becoming the world's largest producer of rubber cable equipment. With the rapid development of China's rubber cable equipment industry, the number of new enterprises is rising, and the overall technical level of the industry has been greatly improved. The sustained and rapid growth of China's economy has provided a huge market space for cable products. The strong attraction of the Chinese market makes the world pay attention to the Chinese market. In just a few decades of reform and opening up, the huge capacity of China's cable manufacturing industry has impressed the world. With the continuous expansion of China's power industry, data communication industry, urban rail transit industry, automobile industry, shipbuilding and other industries, the demand for rubber cable equipment will also grow rapidly, and the future development potential of the rubber cable equipment industry is huge.2008Year11In response to the world financial crisis, the decision to invest4Trillion yuan to stimulate domestic demand, of which40%The above is used for the construction and transformation of urban and rural power grids. The national rubber cable equipment industry has a good market opportunity, rubber cable equipment enterprises around the opportunity to meet a new round of urban and rural power grid construction and transformation.

In the production process of rubber sheathed cables, there are often appearance defects such as uneven surface; clinker particles (early vulcanized rubber particles) or impurities on the surface; scratches and scratches on the surface of wires and cables; surface collapse; on the surface There are twist patterns. Here are five common causes of defects in the appearance of rubber-sheathed cables:

1.The die sleeve bearing line is too long or too short, the die is not smooth, and the aperture is too large; the head, die or body temperature is low; the low plasticity of rubber may cause the surface of the rubber sleeve cable to be not smooth.

2.The supplied rubber is not clean and contains impurities; the rubber burning time is too short; the temperature of the rubber extrusion body, head or mold is too high; the rubber in the head does not flow smoothly, and there are dead corners of the rubber material; the unsmooth screw and viscose may cause clinker particles (early vulcanized rubber particles) or impurities on the surface of the rubber cable.

3.The mold sleeve is not smooth and has no chamfer; there are impurities or rubber particles blocking the mold opening; scratches caused by dragging the pipe into the vulcanized pipe; the small aperture of the rubber gasket at the outlet of the vulcanized pipe may cause scratches on the surface of the rubber sheathed cable And scratches.

4.The aperture of the mold sleeve is too large; the gap between the strands and the single wire on the outer layer of the conductive core is too large, and the outer diameter of the cable core is uneven; the rubber material has low plasticity and poor viscosity; impurities in the rubber; the mold alignment distance is small, The pressure is small, which may cause the surface of the rubber sheathed cable to collapse.

5.The hole diameter of the mold sleeve is too small; the rubber extrusion is insufficient, and the core gap is not filled; the wire core or cable core jumper; the short distance between the two molds may cause twist on the surface of the rubber sheathed cable

The surface of the rubber-sheathed cable is smooth and clean: the top block carrier line is not too long or too short, the die is smooth, and the diameter is appropriate; the temperature of the automobile engine, the die or the shell is suitable; the rubber has good plastic deformation. The rubber material has no precipitation; the rubber does not stagnate, the screws are smooth, and the surface of the rubber sheathed cable is not easy to produce light-burned dolomite particles (early plastic material particles) or deposits. The surface of the rubber sheathed cable is not easy to scratch or scratch. The gap between the conductive strand cable and the metal wire drawing is appropriate, the cable diameter is uniform, soft, and has a certain degree of corrosion resistance. Rubber sheathed cable is a kind of flexible movable cable with multi-strand thin copper wire as conductor, wrapped with rubber insulation and rubber sheath. Generally speaking, it includes general-purpose rubber-sheathed flexible cables, welding machine cables, submersible motor cables, radio equipment cables and photographic light source cables.