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Micro data line physical foaming production device

A technology of physical foaming and production equipment, applied in electrical components, circuits, insulation of conductors/cables, etc., can solve the problem of physical foaming production equipment without fine high-frequency data lines, and achieve stable foaming degree and meet strict requirements. Performance requirements, the effect of high foaming degree

Active Publication Date: 2015-04-22
DONGGUAN QINGFENG ELECTRIC MACHINERY
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AI Technical Summary

Problems solved by technology

[0005] However, there is no physical foaming production equipment for fine high-frequency data lines in the prior art

Method used

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  • Micro data line physical foaming production device
  • Micro data line physical foaming production device
  • Micro data line physical foaming production device

Examples

Experimental program
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Embodiment Construction

[0025] 1. Specifications and technical requirements of production cables:

[0026] Wire structure: inner skin layer - foam layer - outer skin layer;

[0027] Conductor diameter: φ0.32mm (28AWG);

[0028] Inner cortex thickness: 0.02mm, material: LDPE;

[0029] Foam layer thickness: 0.24mm, material: LDPE (70%) + HDPE (20%) + nucleating agent (10%);

[0030] Skin layer thickness: 0.05mm, material: HDPE;

[0031] Finished outer diameter: φ0.94±0.013;

[0032] Online capacitance value: 91.8±1.64 pf / m;

[0033] Withstanding voltage test: AC 1.8kv;

[0034] Concentricity: >85%.

[0035] It can be seen from the above performance parameters of the wire rod that the diameter of the wire rod is small and the required tension value is very small. The weight of the guide wheels must be reduced as much as possible to reduce the resistance to the wire rod. Improve the control accuracy in the process, and the manufacturing accuracy of the equipment to meet the stringent performance...

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Abstract

The invention discloses a micro data line physical foaming production device. The micro data line physical foaming production device comprises a conductor power pay-off mechanism (01), a conductor pre-heater (04), a high-pressure nitrogen injection system (05), a foaming extrusion main machine (00), a movable temperature control water trough (10), a fixed cold water trough (11), a high-speed double-wheel traction machine (12), a blowing water absorber (14), a concentricity detector (15), a concavity-convexity detector (16), an eccentricity detector (17), a buffer tension bracket (18), a high-frequency spark machine (19) and an automatic reel-changing take-up machine (20) which are connected in sequence. All parts of the whole device are controlled by an electrical control box (09). The micro data line physical foaming production device is small in line resistance, high in control accuracy and capable of meeting the strict performance requirement for lines. The foaming degree of produced cables is very high and stable, and the micro data line physical foaming production device is especially suitable for cable products made from a foaming insulation material polyethylene (PE) and using nitrogen (N2) a foaming medium.

Description

technical field [0001] The invention relates to the field of wire and cable manufacturing equipment, in particular to physical foaming production equipment for fine data lines. Background technique [0002] With the development of the communication industry, the frequency of online transmission is getting higher and higher, and the data capacity is getting bigger and bigger, which puts forward higher requirements for transmission lines. The traditional chemical foaming production process can no longer meet the market demand due to the high production cost and the inherent reasons of the rubber material that cause the residue in the production cable that affects the performance. After continuous improvement and improvement, the physical foaming production process has become a mature and reliable production process, which is gradually replacing the chemical foaming production process, fully accepted by the market and applied to actual production. [0003] Compared with the ch...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B13/14
Inventor 郑庆均
Owner DONGGUAN QINGFENG ELECTRIC MACHINERY
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