The following are five common causes of appearance defects in rubber sheathed cables:

1. The sleeve bearing line is too long or too short, the die is not smooth and the aperture is too large; Low head, die or body temperature; Small plasticity of rubber material may lead to the surface of rubber sheath cable is not smooth. 2. The supplied rubber is not clean and contains impurities; The burning time of rubber is too short; Extrusion body, head or die temperature is too high; The rubber flow in the head is not smooth, and there is a dead Angle of rubber material retention; The screw is not smooth, viscose, etc., may lead to clinker particles (early vulcanized rubber particles) or impurities on the surface of the rubber sleeve cable.

3. Mold sleeve is not smooth, no chamfer; There are impurities or cooked glue particles blocked the mold; Drag pipe chafing in the vulcanization tube; Small diameter of rubber gasket for vulcanization tube outlet seal may lead to scratches and scratches on the surface of rubber sheath cable.

4. The aperture of die sleeve is too large; The outer space between strands and monofilms of the conductor core is too large, and the outer diameter of the cable core is uneven. Rubber material plastic small, poor viscosity; There are impurities in rubber material; The surface collapse of rubber sheathed cable may be caused by the small die distance and pressure.

5. Die sleeve aperture is too small; Rubber extrusion is insufficient, the core gap is not filled; Conductive core or cable core jumper; Short matching distance may cause the surface of the rubber sheath cable to appear hemp pattern.

Rubber sheathed cable is a kind of soft and mobile cable with multiple strands of fine copper wire as conductor, rubber insulation and rubber sheathed. Generally speaking, including general rubber sheath flexible cable, welding machine cable, submersible motor cable, radio device cable and photographic light source cable and other varieties.

Product overview

Rubber sheathed cables are widely used in a variety of electrical equipment, such as household appliances, electromechanical machinery, electrical equipment and appliances of mobile power lines. It can also be used in indoor or outdoor environmental conditions. According to the mechanical external force of the cable, the product structure is divided into light, medium and heavy three categories. There are also appropriate connections in the section.

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

In addition to industrial use, medium rubber cable is widely used in agricultural electrification;

Heavy-duty cables are used in such places as port machinery, searchlights, and large hydraulic drainage and irrigation stations. This kind of product has good versatility, complete series specifications, good performance and stability.

Scope of application

Waterproof rubber sheath cable and submersible pump cable: mainly used for submersible motor matching, model JHS, JHSB.

Cable for radio devices: Now the main production of two kinds of rubber sheath cable (one shielded, one unshielded), basically meet the requirements, the model is WYHD, WYHDP.

Cable products for photography: with the development of new light sources, it has a small structure and good performance, while meeting the needs of indoor and field work, and gradually replacing some heavy and poor heat resistance of the old products.

Matters needing attention

1. Equipment: Small pressure equipment with automatic temperature control, timing and multi-specification tubular cavity.

Second, adhesive material: consistent with the wire of the wire, and the glue content is higher than the material to be supplemented, and the vulcanization system is slightly stronger.

Third, operation method:

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

2. Use rubber ink thinner to wash and repair the place, especially the joint should be fully treated.

3, according to the size of the gap appropriate cut repair adhesive material, pay attention to not too much or too little,

4. Plug the cut rubber material into the gap, paying attention to the rubber material not higher than the circumference of the wire.

5. Wrap with high temperature resistant PP belt. And put it into a tubular mold cavity slightly smaller than the wire diameter, lock the upper and lower molds, so that the filled position has a certain pressure. Note that the cavity diameter is slightly smaller than the wire diameter by 0.1~0.2mm.

6, vulcanization time to take out the product, if there is a small amount of rubber overflow, with a sharp blade repair, and with diluent Sassafras can.

Iv. Verification Method:

The right amount of air is pressed into the wire and placed in the water, see whether there is gas leakage phenomenon can be judged good or bad.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098