Silicon rubber sleeve expansion method and device

A silicone rubber sleeve and expansion device technology, which is applied to tubular objects, other household appliances, household appliances, etc., can solve problems affecting the contact of cold-shrinkable terminal parts, cracking of cold-shrinkable sleeves, cracking of silicone rubber tubes, etc., and achieve mechanical Easy processing, clean expansion work, and easy operation

Inactive Publication Date: 2011-04-20
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the force of the cylinder is very large, it is not suitable for long and thin silicone pipe fittings, only suitable for short and thick pipe fittings, and it needs to apply a large amount of silicone oil grease
And these lubricants will be absorbed by the silicone rubber tube, which will easily cause the cracking of the silicone rubber tube
[0007] A large amount of lubricating grease will form an oil film on the conductive part material, which will affect the contact between the stress cone in the cold shrink terminal and the outer semiconducting layer of the cable, and will easily cause the cold shrink sleeve to crack during storage.

Method used

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  • Silicon rubber sleeve expansion method and device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the silicone rubber sleeve expansion device is characterized in that: the tail end of the expansion head 1 has a cavity, the spiral support tube 4 is inserted into the cavity, and has a mandrel 5 that can hold the spiral support The tube 4, the ejector rod 5 and the ejector rod support 3 are plug-in connections, and a nylon mesh sleeve 6 is used as a spacer between the silicone rubber tube 2 and the expansion head 1.

[0027] The specific method is as follows:

[0028] 1. Fix the top rod support of the metal structure on the wall or other side of the base that can bear the thrust within 100KG in the horizontal direction;

[0029] 2. Adjust the specifications of the iron expansion head and spiral support tube to correspond to the size to be expanded, and insert the spiral support tube into the tail cavity of the iron expansion head;

[0030] 3. Insert the ejector rod together with the spiral tube into the ejector rod support. After confirming that the...

Embodiment 2

[0036] 1. Fix the top rod support of the metal structure on the wall or other side of the base that can bear the thrust within 100KG in the horizontal direction;

[0037] 2. Adjust the specifications of the steel expansion head and spiral support tube to correspond to the size to be expanded, and insert the spiral support tube into the tail cavity of the steel expansion head;

[0038] 3. Insert the ejector rod together with the spiral tube into the ejector rod support. After confirming that the connection with the ejector rod support is in a proper position, retract the spiral tube into the tail cavity of the ejector rod to expose the spiral tube at a distance of 45mm;

[0039] 4. Select the propylene rubber sleeve and the strong PE wire mesh sleeve of the corresponding size, feed the nylon mesh sleeve into the propylene rubber tube, and expose the strong PE wire mesh sleeve 15mm toward the end of the ejector support;

[0040] 5. Put one end of the strong PE wire mesh sleeve on the exp...

Embodiment 3

[0044] 1. Fix the top rod support of the metal structure on the wall or other side of the base that can bear the thrust within 100KG in the horizontal direction;

[0045] 2. Adjust the specifications of the aluminum expansion head and spiral support tube to correspond to the size to be expanded, and insert the spiral support tube into the tail cavity of the aluminum expansion head;

[0046] 3. Insert the ejector rod together with the spiral tube into the ejector rod support. After confirming that the connection with the ejector rod support is in a proper position, retract the spiral tube into the tail cavity of the ejector rod, exposing the spiral tube at a distance of 50mm;

[0047] 4. Choose the natural rubber sleeve and the strong PET wire mesh sleeve of the corresponding size, feed the PET wire mesh sleeve into the natural rubber tube, and expose the PET wire mesh sleeve 20mm toward the end of the ejector support;

[0048] 5. Put one end of the PET wire mesh sleeve on the aluminum ...

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PUM

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Abstract

The invention relates to a silastic bushing expansion device. The invention is characterized in that the tail end of an expansion head is provided with an empty cavity; a spiral supporting pipe is inserted into the empty cavity and is provided with a top rod; the top rod can support a spiral supporting pipe; the top rod and a support saddle thereof are connected in an inserting way; a nylon net sleeve is arranged between a silastic tube and the expansion head as a spacer. The air clearance formed after the nylon net sleeve is sheathed on the expansion head can reduce much resistance in the silastic tube and hauls a silastic piece on a plastic spiral pipe by proper force. The silastic bushing expansion device has the advantages of clean expansion, non-large mechanical power and being suitable for the expansion of a short and thick pipe.

Description

Technical field [0001] The invention relates to a method and device for expanding a silicone rubber sleeve, and the technical field of rubber sleeve expansion in a cold shrinkable sleeve manufacturing process. Background technique [0002] Silicone rubber cold-shrinkable material is a new type of functional polymer material. Its manufacturing principle is to take advantage of the self-reset characteristic of rubber after stretching: first prepare a silicone rubber tube or part, expand it and embed it into a support, and it will support it during application. When the object is removed, the rubber tube will automatically reset and shrink on the covered object. Compared with the process of heat shrinkage of heat shrinkable material, the automatic reset of silicone rubber tube is called "cold shrinkage" because there is no heating means during the shrinking process. This type of material is called "cold shrinkage material", also referred to as "cold shrinkage" material". Compared ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29L23/00B29K19/00B29C61/00
Inventor 苗润忠
Owner CHANGCHUN UNIV OF SCI & TECH
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