Enamelled Wire Surface Need to Be Painted for Smooth

When coated with a thin wire, it is thickly coated and shrinks under surface tension to form a wavy or bamboo-shaped yarn. If there is a very fine burr on the wire, under the effect of surface tension, the burr is not easy to paint, but also easy to lose thinning, resulting in the pinhole of the Enameled Copper Wire.

If the round wire itself becomes elliptical, under the effect of additional pressure during painting, the paint liquid layer is thin at the two ends of the long axis of the ellipse, and thick at the two ends of the short axis, forming a significant non-uniform phenomenon, so the enameled wire is used The roundness of round copper wire should meet the requirements.

When bubbles are produced in the paint, the bubbles are the air entrapped in the paint during the agitation and feeding process. Due to the small specific gravity of the air, they are raised to the external surface by buoyancy, but the air cannot be maintained due to the surface tension of the paint. Break through the surface layer and remain in the paint. This liquid with air bubbles is applied to the surface of the wire and enters the enameled furnace. After heating, the air expands rapidly and it rushes out of the surface when the surface tension of the paint decreases due to heat. Enameled wire surface is not smooth.

If the surface of the copper wire is bright and clean, a layer of paint can be applied. If the surface is stained with oil, the contact angle between the wire and the paint interface is affected, and the paint solution turns the wire from wet to non-wet. If the copper wire is hard, the irregular alignment of the surface molecules on the paint will have less attraction to the paint, which is not conducive to the wetting of the copper wire by the paint solution.

Xinyu Enamelled Wire is an integrated industrial and trade enterprise specialized in enamelled wire with UL certification. We offer different types of enamelled wire, welcome your visit.

 

Fiber Optic Splice Closure ( Brief Introduction and Types)

Greentelftth supplies a variety of quality Fiber Optic Splice Closure for different application.

Fiber optic splice closure also named fiber optic joint, it is usually used with outdoor fiber optic cables, provides space for the outdoor fiber optic cables to be spliced together. The fiber optic splice closures and the fiber trays inside will protect the spliced fiber and the joint parts of the outdoor fiber cables. Generally the fiber optic splice closures are horizontal types and dome type (also called vertical type). Horizontal types are used more often than vertical type (dome type) closures.

There are two main types of closures, fiber optic and fiber optic terminal. A closure is hardware used to restore integrity of fiber cables entering the enclosure. The terminal is a hardened external connector that allows the addition of one or more fiber cables to the enclosure. These two categories can be configured as butt closures and in-line closures. The butt closure allows cables to enter from one end, while the in-line allows entry from both ends. Both the butt closures and in-line closures can be one of the following types:

Features of Greentel Inline Closure

● Easy to assemble

● Protection level reaches IP68

● High Quality plastic body material ensure the durability

● Suitable for Φ5mm~Φ23mm cables

● Aerial, underground, pipeline,man-holes,hand-holes assembling

● Adapt to the ambient temperature from -40℃ to +65℃

Features of Greentel Dome Fiber Closure

● Full mechanical seal

● Protection level reaches IP68

● High Quality Plastic body material ensure the durability

● Suitable for Φ5mm~Φ38mm cables

● Aerial, underground, pipeline,man-holes,hand-holes assembling

● Adapt to the ambient temperature from -40℃ to +65℃

Greentel fiber optic splice closure widely used in optic telecommunication systems. GreenTel provides various shapes closure of DOME type. All the closures we offered are with a great sealing performance. High quality plastic material also ensures the durability whether the closure is in air, in pipeline or buried underground.