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Metro motor connecting soft cable and production method thereof

A technology of motor leads and flexible cables, applied in the direction of insulated cables, flexible cables, cable/conductor manufacturing, etc., can solve the problems affecting the safe operation of subways, poor flame retardancy and oil resistance, etc., to reduce transmission and improve oil resistance Performance, the effect of reducing harmful gases

Inactive Publication Date: 2012-01-11
JIANGYIN FUTE CABLE
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Problems solved by technology

It is mainly made of single copper conductor and insulating polyolefin through extrusion and irradiation cross-linking process. Due to the special environment, it must have special features such as environmental protection, flame retardancy, oil resistance and safety performance. The existing subway motor leads are flexible. The cable has poor flame retardancy and oil resistance, which affects the safe operation of the subway

Method used

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  • Metro motor connecting soft cable and production method thereof
  • Metro motor connecting soft cable and production method thereof

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example 1

[0026] Example 1: A production method of a flexible cable for a subway motor lead, the steps are as follows:

[0027] (1), 0.58KgEVA resin, 0.24Kg fineness are 800 meshes of calcium carbonate, 1.1Kg magnesium hydroxide, 0.04Kg antioxidant 1010 and 0.04Kg tripropenyl isocyanurate TAIC mix and carry out granulation, make The plasticization of each component is uniform, and the polyolefin insulation material is obtained;

[0028] (2), will be made by 1026 Φ 0.25mm tinned copper wires and the cross-sectional area is the conductor of 50mm Leading into the extrusion device through the tension device, while the polyolefin insulating material made in the step (1) is sent to Enter the extrusion device, so that the polyolefin insulating material is extruded on the surface of the conductor, and the cable is obtained. The traction speed of the conductor is 5 m / min, and the traction tension is 320N;

[0029] (3), the irradiation accelerator applies 25KV energy, and the radiation dose is 1...

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Abstract

The invention relates to an metro motor connecting soft cable which is characterized by comprising a conductor and a radiation XLPE insulation layer extruded on the appearance of the conductor; the radiation XLPE insulation layer comprises the following components in percentage by weight: 25 to 35 percent of EVA resin, 5 to 15 percent of calcium carbonate, 50 to 65 percent of magnesium hydroxide, 1 to 5 percent of chemical inhibitor 1010 and 1 to 3 percent of TAIC; and wherein the particle fineness of calcium carbonate is 700 to 1000mesh. The invention also relates to a production method of the metro motor connecting soft cable. The invention has the advantages of low smoke, halogen-free, environmental protection, and good flame-retardant and oil resistant performance.

Description

1. Technical field [0001] The invention relates to a flexible lead-in cable for subway motors, in particular to an irradiation cross-linked polyolefin insulated low-smoke, halogen-free, flame-retardant, oil-resistant lead-in flexible cable for subway motors and a production method thereof. 2. Background technology [0002] At present, the lead flexible cable of the subway motor is mainly used for the power transmission of the main motor of the subway. It is mainly made of single copper conductor and insulating polyolefin through extrusion and irradiation cross-linking process. Due to the special environment, it must have special features such as environmental protection, flame retardancy, oil resistance and safety performance. The existing subway motor leads are flexible. The cable has poor flame retardancy and oil resistance, which affects the safe operation of the subway. 3. Contents of the invention [0003] In view of the above shortcomings, the purpose of the present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/04H01B7/17H01B7/295H01B3/44H01B13/00
Inventor 李福兴
Owner JIANGYIN FUTE CABLE
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