Preparation method of bi-color or multi-color extruded PTFE (Polytetrafluoroethylene) insulated wire

A technology of PTFE and insulated wires, which is applied in the manufacture of cables/conductors, electrical components, circuits, etc. It can solve the problems of easily damaged marks, insufficient temperature resistance of insulated wires, and poor firmness of digital marks, etc., so as to save costs and improve The effect of temperature resistance class

Active Publication Date: 2014-05-07
江苏通光电子线缆股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the method of distinguishing more than 9 power channels is to use a twin-screw extruder to produce a two-color line. Using a twin-screw extruder to produce a two-color line can only achieve two-color production of cables, and at most add some color distinctions, and the twin-screw extruder The insulated wire's temperature resistance level is not enough, and only PVC and PE materials can be extruded, which cannot meet the high temperature resistance requirements of aerospace at this stage.
The use of surface printing is to mark with Arabic numerals, but the firmness of the digital marks is not good, and the marks are easily damaged during the wire installation process
Obviously, it is not ideal to use them as cable color distinctions

Method used

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  • Preparation method of bi-color or multi-color extruded PTFE (Polytetrafluoroethylene) insulated wire
  • Preparation method of bi-color or multi-color extruded PTFE (Polytetrafluoroethylene) insulated wire
  • Preparation method of bi-color or multi-color extruded PTFE (Polytetrafluoroethylene) insulated wire

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 , 2 Shown in and 3, a kind of two-color or multi-color extruded PTFE insulated wire preparation method of the present invention adds raw material, and described raw material comprises conductor and base material, and described conductor is the silver-plated copper wire of stranded, and described base The material is made by mixing PTFE, petroleum ether solvent and two kinds of water-based pigments. The base material is cut into stainless steel sheets by pre-pressing molding equipment, and 1500g of PTFE, 250g of petroleum ether solvent and 30g of blue water-based pigment are added to one side , add 1500g of PTFE, 250g of petroleum ether solvent and 30g of yellow water-based pigment to the other side, press it into a two-color preform, and slowly push the preform into the PTFE horizontal pushing host equipment through the preform sleeve, through the traction The two-color base material is coated on the surface of the conductor to form a two-color PTFE in...

Embodiment 2

[0026] Such as figure 1 , 2Shown in and 4, a kind of two-color or multi-color extruded PTFE insulated wire preparation method of the present invention adds raw material, and described raw material comprises conductor and base material, and described conductor is the silver-plated copper wire of stranding, and described base The material is made by mixing PTFE, petroleum ether solvent and two kinds of water-based pigments. The base material is cut into stainless steel sheets by pre-pressing molding equipment, and 1000g of PTFE, 150g of petroleum ether solvent and 20g of blue water-based pigment are added to one side , add 1000g of PTFE, 150g of petroleum ether solvent and 20g of yellow water-based pigment to one side, add 1000g of PTFE, 150g of petroleum ether solvent and 20g of red water-based pigment to one side, press into a three-color preform, pass through the preform The sleeve slowly pushes the preform into the PTFE horizontal pushing host equipment, and wraps the three...

Embodiment 3

[0029] Such as figure 1 , 2 Shown in and 5, a kind of two-color or multi-color extruded PTFE insulated wire preparation method of the present invention adds raw material, and described raw material comprises conductor and base material, and described conductor is the silver-plated copper wire of stranded, and described base The material is made by mixing PTFE, petroleum ether solvent and two kinds of water-based pigments. The base material is cut into stainless steel sheets by pre-pressing molding equipment, and 800g of PTFE, 100g of petroleum ether solvent and 15g of blue water-based pigment are added to one side , add 800g of PTFE, 100g of petroleum ether solvent and 15g of yellow water-based pigment on one side, add 800g of PTFE, 100g of petroleum ether solvent and 15g of red water-based pigment on one side, add 800g of PTFE and 100g of petroleum ether on one side Solvent and 15g of green water-based pigment are pressed into four-color preforms, and the preforms are slowly...

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Abstract

The invention discloses a preparation method of bi-color or multi-color extruded PTFE (Polytetrafluoroethylene) insulated wire. The preparation method is characterized by comprising the following steps of: adding raw materials, wherein the raw materials comprise a conductor and a base material, the base material is formed by mixing and matching PTFE, petroleum ether solvent or two or more water-based pigments, and the base material is pressed into bi-color or multi-color precast bars by a stainless steel slitting blade of a pre-pressing forming equipment; slowly pushing the precast bars into PTFE horizontal pushing host equipment through a precast bar sleeve; coating the surface of the conductor with the bi-color or multi-color base material by traction or piston pushing so as to form a bi-color or multi-color PTFE insulated wire; extruding the insulated wire into drying equipment through an oil-pressure driving piston; conveying the dried bi-color or multi-color PTFE insulated wire into a five-area sintering temperature detection area in sintering equipment; and forming the bi-color or multi-color PTFE insulated wire product after cooling the bi-color or multi-color PTFE insulated wire. The preparation method disclosed by the invention has the following advantages of improving the temperature resistance grade and saving the cost.

Description

technical field [0001] The invention also relates to a method for preparing a two-color or multi-color extruded PTFE insulated wire. Background technique [0002] Wire and cable signal access ports or special purposes are identified by color. For wire and cable signal access ports not greater than 9 or when there is no special requirement for multi-color lines, traditional single-color lines can handle it, but for wire and cable signal access ports greater than 9 or such as red-green double-color, red-green-yellow three-color When wires and the like represent special meanings, the traditional pre-press molding equipment for pushing PTFE insulation cannot meet the requirements of more than 9 colors or cannot produce multi-color wires. [0003] The access port device is distinguished by color or printed marking to realize the distinction of signal transmission and transmit the signal in time. In recent years, the method of using equipment to identify wire and cable products h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B13/34
Inventor 周正平陈辉李华丁春风
Owner 江苏通光电子线缆股份有限公司
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