Preparation method for rubber cable connector

A technology for cable joints and rubber cables, applied in the direction of connecting/terminating cable equipment, circuits, electrical components, etc., can solve the problems of complex vulcanization molding process, easy generation of bubbles in the insulating layer, uneven pressure transmission, etc., to avoid Rubber aging problem, pressure uniformity, effect of improved bond strength

Active Publication Date: 2011-05-11
HEBEI KELI HENGJIU INTELLIGENT SWITCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This production method has the following defects: (1) The rubber undergoes three repeated high-temperature and high-pressure vulcanization processes, which accelerates the aging of the rubber; (2) Due to the complex shape of the product, the pressure transmission of various parts during the vulcanization molding process is uneven, resulting in insulation layer Air bubbles are easily generated inside and between the semi-conductive layer, and the bonding strength between layers is low; (3) The composite vulcanization molding process is complicated, the operation requirements are harsh, and the product qualification rate is low; (4) The above-mentioned production method is a mold Produce one, low production efficiency

Method used

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  • Preparation method for rubber cable connector
  • Preparation method for rubber cable connector
  • Preparation method for rubber cable connector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of preparation method of rubber cable joint is as follows:

[0023] (1) Making the inner semiconductive layer of the rubber cable joint:

[0024] Remelt the semi-conductive mixed rubber into a 6mm thick film, cut it according to the sample, prepare the material weight 100 grams per piece, and produce 4-6 pieces for each set of molds; put the prepared rubber material into the mold of the inner semi-conductive layer, Push the mold into the rubber flat vulcanizing machine, close the mold and pressurize it, deflate it at least twice, and vulcanize it for 600 seconds at a temperature of 168°C and a pressure of 18MP;

[0025] (2) Making the outer semiconductive layer of the rubber cable joint:

[0026] Remelt the semi-conductive mixed rubber into a film with a thickness of 4mm, cut it according to the model, prepare the material weight of 240 grams per piece, and produce 2 pieces for each set of molds; put the prepared rubber material into the mold of the outer semi-c...

Embodiment 2

[0034] A kind of preparation method of rubber cable joint is as follows:

[0035] (1) Making the inner semiconductive layer of the rubber cable joint:

[0036] Remelt the semi-conductive mixed rubber into a 6.3mm thick film, cut it according to the sample, prepare the material with a weight of 100 grams per piece, and produce 4-6 pieces for each set of molds; put the prepared rubber into the mold of the inner semi-conductive layer , push the mold into the rubber flat vulcanizing machine, close the mold and pressurize it, deflate it at least twice, and vulcanize for 660 seconds at a temperature of 170°C and a pressure of 19MP;

[0037] (2) Making the outer semiconductive layer of the rubber cable joint:

[0038] Remelt the semi-conductive mixed rubber into a film with a thickness of 4mm, cut it according to the model, prepare the material weight of 240 grams per piece, and produce 2 pieces for each set of molds; put the prepared rubber material into the mold of the outer semi-...

Embodiment 3

[0046] A kind of preparation method of rubber cable joint is as follows:

[0047] (1) Making the inner semiconductive layer of the rubber cable joint:

[0048] Remelt the semi-conductive mixed rubber into a 6.5mm thick film, cut it according to the sample, prepare the material with a weight of 100 grams per piece, and produce 4-6 pieces for each set of molds; put the prepared rubber into the mold of the inner semi-conductive layer , push the mold into the rubber flat vulcanizer, close the mold and pressurize it, deflate it at least twice, and vulcanize it for 720 seconds at a temperature of 172°C and a pressure of 20MP;

[0049] (2) Making the outer semiconductive layer of the rubber cable joint:

[0050] Remelt the semi-conductive mixed rubber into a film with a thickness of 4mm, cut it according to the model, prepare the material weight of 240 grams per piece, and produce 2 pieces for each set of molds; put the prepared rubber material into the mold of the outer semi-conduc...

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PUM

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Abstract

The invention provides a preparation method for a rubber cable connector. The preparation method comprises the following steps of: 1, preparing an inner semiconductive layer of the cable connector; 2, preparing an outer semiconductive layer of the cable connector; sleeving the inner semiconductive layer and the outer semiconductive layer together, sleeving the same on a mold core and horizontally placing into an injection moulding mold; 4, rubberizing by using a rubber injection moulding machine and vulcanizing; and 5, taking the mold core out after vulcanization to obtain the product. By the method, the operation is easy and convenient, the product percent of pass is high, the bonding strength between the inner and outer semiconductive layers and an insulating layer is enhanced greatly, the electric performance is perfect, and the service life of the rubber cable connector is extended.

Description

technical field [0001] The invention relates to a method for preparing rubber vulcanization molding, in particular to a method for preparing rubber cable joints. Background technique [0002] At present, the rubber cable joints on the market are made of three-layer compound vulcanization molding of the inner semi-conductive layer, the outer semi-conductive layer and the intermediate insulating layer. The existing production method is: first put the mixed rubber back into the mold, push the mold into the rubber flat vulcanizing machine, vulcanize and mold under a certain temperature, time and pressure to obtain the inner semi-conductive layer; The vulcanized inner semiconductive layer and the insulating rubber are vulcanized at a certain temperature, time and pressure to obtain the intermediate insulating layer; finally, the outer surface of the compound vulcanized intermediate insulating layer is wrapped with semiconductive rubber and heated at a certain temperature, time, a...

Claims

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Application Information

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IPC IPC(8): H01B19/00H02G1/14B29C69/00B29C43/02B29C43/58B29C65/56B29C45/14B29C45/76
Inventor 王建兴谢广英何燕生齐丽娟
Owner HEBEI KELI HENGJIU INTELLIGENT SWITCH CO LTD
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