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A kind of slip-off sealing ring and its manufacturing process

A sealing ring and anti-off technology, which is applied in the field of anti-off sealing ring and its manufacturing process, can solve the problems of large compression permanent deformation, easy tearing of soft rubber, poor adhesion between metal tooth blocks and soft rubber, etc., and achieve reduction Compression permanent deformation, not easy to break, avoid the effect of blooming phenomenon

Active Publication Date: 2021-04-30
无锡市锡达电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention provides an anti-off sealing ring, which can solve the problem that the soft rubber part of the existing common T-shaped anti-off sealing ring is easy to tear, the compression permanent deformation is large, and the adhesion between the metal tooth block and the soft rubber is solved. The resultant force is relatively poor, for this reason, the present invention also provides a manufacturing process of the anti-off sealing ring

Method used

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  • A kind of slip-off sealing ring and its manufacturing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1. Weighing: Weigh hard rubber and soft rubber according to the following hard rubber formula and soft rubber formula respectively

[0045] Hard rubber formula: by weight: 100 parts of EPDM rubber, 90 parts of high wear-resistant carbon black N550, 10 parts of high wear-resistant carbon black N330, 5 parts of tackifying resin, 1 part of stearic acid, 6 parts Zinc oxide, 3.5 parts of accelerator EM-35, 1 part of accelerator DM, 0.8 parts of sulfur.

[0046] Soft rubber formula: by weight: 100 parts of EPDM rubber, 50 parts of high wear-resistant carbon black N550, 20 parts of high wear-resistant carbon black N330, 38 parts of paraffin oil, 6 parts of tackifying resin, 1 part of hard rubber Ester acid, 6 parts of zinc oxide, 3.5 parts of accelerator EM-35, 1 part of accelerator DTDM, 1 part of accelerator DM, 0.8 parts of sulfur.

[0047] 2. Rubber mixing

[0048] 2.1 Hard rubber mixing process is as follows:

[0049] A1. Mixing masterbatch: plasticize EPDM rubber on a...

Embodiment 2

[0061] 1. Weighing: Weigh hard rubber and soft rubber according to the following hard rubber formula and soft rubber formula respectively

[0062] Hard rubber formula: by weight: 100 parts of EPDM rubber, 40 parts of high wear-resistant carbon black N550, 40 parts of high wear-resistant carbon black N330, 8 parts of tackifying resin, 2 parts of stearic acid, 6 parts Zinc oxide, 3 parts accelerator EM-35, 1 part accelerator DM, 1 part sulfur.

[0063] Soft rubber formula: by weight: 100 parts of EPDM rubber, 50 parts of high wear-resistant carbon black N550, 10 parts of high wear-resistant carbon black N330, 10 parts of white carbon black, 30 parts of paraffin oil, 6 parts of Viscose resin, 1 part of stearic acid, 6 parts of zinc oxide, 2 parts of accelerator EM-35, 1 part of accelerator DTDM, 1 part of accelerator DM, 1 part of sulfur.

[0064] 2. Rubber mixing

[0065] 2.1 Hard rubber mixing process is as follows:

[0066] A1. Mixing masterbatch: plasticize EPDM rubber on ...

Embodiment 3

[0078] 1. Weighing: Weigh hard rubber and soft rubber according to the following hard rubber formula and soft rubber formula respectively

[0079] Hard rubber formula: in parts by weight: 90 parts of EPDM rubber, 90 parts of high wear-resistant carbon black N550, 10 parts of high wear-resistant carbon black N330, 5 parts of tackifying resin, 1 part of stearic acid, 6 parts Zinc oxide, 3.5 parts of accelerator EM-35, 1 part of accelerator DM, 0.8 parts of sulfur.

[0080] Soft rubber formula: by weight: 100 parts of EPDM rubber, 50 parts of high wear-resistant carbon black N550, 10 parts of high wear-resistant carbon black N330, 10 parts of white carbon black, 36 parts of paraffin oil, 6 parts of Viscose resin, 1 part of stearic acid, 6 parts of zinc oxide, 3.5 parts of accelerator EM-35, 1 part of accelerator DTDM, 1 part of accelerator DM, 0.8 parts of sulfur.

[0081] 2. Rubber mixing

[0082] 2.1 Hard rubber mixing process is as follows:

[0083] A1. Mixing masterbatch: ...

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Abstract

The invention provides an anti-off sealing ring, which can solve the problem that the soft rubber part of the existing common T-shaped anti-off sealing ring is easy to tear, the compression permanent deformation is large, and the adhesion between the metal tooth block and the soft rubber is relatively poor. The problem. It includes hard rubber, soft rubber and metal gear blocks. The components in the soft rubber are as follows, which are calculated in parts by weight: 10~100 parts of EPDM rubber, 10~100 parts of high wear-resistant carbon black N550, 10~ 100 parts of high wear-resistant carbon black N330, 0~30 parts of white carbon black, 10~60 parts of paraffin oil, 5~10 parts of tackifying resin, 1~3 parts of stearic acid, 2~10 parts of zinc oxide, 2~6 Part accelerator EM-35, 1~5 parts accelerator DTDM, 1~5 parts accelerator DM, 0.5~2 parts sulfur. For this reason, the present invention also provides a manufacturing process of the anti-slip sealing ring.

Description

technical field [0001] The invention relates to the technical field of sealing rings for water supply and drainage pipes, in particular to an anti-slip sealing ring and a manufacturing process thereof. Background technique [0002] Ductile iron pipes are widely used in water supply and drainage pipes in cities and towns. The seal between the pipes basically adopts a slide-in flexible interface seal ring, that is, a T-shaped seal ring. This rubber ring has certain shock resistance and good sealing performance. However, it cannot prevent the pipeline from slipping, and a concrete thrust pier needs to be added in the direction of the pipeline axis. In order to overcome the above-mentioned defects of the T-shaped sealing ring, an anti-slip steel tooth block is added inside the structure of the original sealing ring, thereby deriving the anti-slip T-shaped sealing ring, that is, the T-shaped anti-off sealing ring. [0003] The usual T-shaped anti-off sealing ring, its structure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L101/00C08L91/06C08K13/02C08K3/04C08K5/09C08K3/22F16J15/12B29B7/00
CPCB29B7/005B29B7/007C08K2003/2296C08K2201/014C08L23/16C08L2205/03F16J15/102F16J15/121C08L101/00C08K13/02C08K3/04C08K5/09C08K3/22C08L91/06
Inventor 朱锡良过宏鸣朱雯婷柏银平
Owner 无锡市锡达电子科技有限公司
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