In the production process of rubber cables, there are often appearance defects, such as the surface is not smooth; the surface of the clinker particles (early vulcanization of rubber particles) or impurities; wire and cable surface scratches, abrasions; the surface has collapsed; the surface of the sesame pattern and so on. The following are five common causes of appearance defects in rubber cables:

1. mold sleeve bearing line is too long or too short, the mold mouth is not smooth and the aperture is too large; head, mold mouth or body temperature is low; rubber material plasticity is small, etc. may lead to the surface of the rubber cable is not smooth.

2. supply of rubber is not clean, containing impurities; rubber burning time is too short; extruding rubber body, head or mouth mold temperature is too high; rubber flow in the head is not smooth, there is a rubber stagnation dead ends; screw is not smooth, sticky rubber, etc. may lead to the surface of the rubber cable clinker particles (early vulcanization of rubber particles) or impurities.

3. Mold sleeve is not smooth, no chamfer; impurities or clinker particles blocking the mold mouth; in the vulcanization tube drag tube abrasion; vulcanization tube outlet seal rubber washer aperture is small, etc. may lead to rubber cable surface scratches, abrasions.

4. Mold aperture is too large; conductive core outer strands, monofilament gap between large, uneven outer diameter of the core; rubber material plasticity is small, poor adhesion; rubber material in the impurities; mold distance is small, small pressure, etc. may lead to the surface of the rubber cable collapse.

5. die sleeve aperture is too small; rubber material extrusion is not enough, the core gap is not filled; conductive core or cable core jumper; short distance from the mold may lead to the surface of the rubber cable twist pattern.

Rubber cable is a multi-stranded fine copper wire as a conductor, rubber insulation and rubber sheath of a soft mobile cable varieties. Generally speaking, including general-purpose rubber cables, welding machine cables, diving motor cables, radio device cables and photographic light source cables and other varieties.

Product Overview:

Rubberized cables are widely used in a variety of electrical equipment, such as daily appliances, electric machinery, electrical installations and appliances of the mobile power cord. Also can be used in indoor or outdoor environmental conditions. According to the mechanical external force applied to the cable, it is divided into three categories of light, medium and heavy in terms of product structure. There is also appropriate articulation in the cross-section.

　　General light rubber cables used in daily appliances, small electric equipment, requiring soft, lightweight, good bending performance;

　　Medium rubber cables are widely used in agricultural electrification in addition to industrial use;

　　Heavy-duty cables are used for occasions such as port machinery, searchlights, home industry large-scale hydraulic drainage and irrigation stations. These products have good versatility, complete series specifications, good and stable performance.

Application scope:

Waterproof rubber cables and submersible pump cables: mainly used for submersible motor supporting, model JHS, JHSB.

　　Radio device cable: now mainly produces two kinds of rubber cables (a shielded, a non-shielded), can basically meet the requirements, model WYHD, WYHDP.

　　Photographic cable products: with the development of new light sources, with a small structure, good performance, while meeting the needs of indoor and field work, and gradually replace some of the heavy, heavy, heat-resistant poor performance of the old products.

Notes:

I. Equipment: small pressure equipment with automatic temperature control, timing and multi-specification tubular mold cavity.

Second, the rubber: the same as the wire made up of wire, and the rubber content should be higher than the material being made up, vulcanization system is slightly stronger.

Third, the operation method:

1, according to the vulcanization system of the rubber material to set the temperature and time

2, with rubber ink thinner sassafras repair place, especially the combination should be fully processed.

3, according to the size of the gap in the appropriate amount of cut repair rubber, pay attention to not more or less.

4, will be cut in the gap in the rubber material, pay attention to the rubber material is not higher than the circumference of the wire.

5, wrapped with high temperature PP tape. And put it into the tubular mold cavity slightly smaller than the diameter of the wire, lock the upper and lower molds, so that the location of the patch has a certain pressure. Note that the diameter of the mold cavity is slightly smaller than the wire diameter 0.1~0.2mm.

6, to be vulcanization time to, take out the product, such as a small amount of rubber overflow, with a sharp blade to repair all, and with thinner sassafras can be.

Fourth, verify the method:

The appropriate amount of air pressure into the patch wire and placed in the water, see there is no air leakage phenomenon can be judged good or bad.