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Sizing material of stator rubber sleeve for pre-stressed vacuum grouting pump and preparation method thereof

A pump stator and rubber sleeve technology is applied in the field of prestressed vacuum grouting pump stator rubber sleeve compound and its preparation field, which can solve the problems of shadow bushing life, rubber falling blocks, bushing falling off, etc., and achieves good comprehensive performance, bonding The effect of high performance such as strong resistance and aging resistance

Inactive Publication Date: 2012-07-04
HEFEI SHICHUAN ENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The stator rubber sleeve of the prestressed vacuum grouting pump is also a vulnerable part of the prestressed vacuum grouting pump. Its selection will directly affect the life of the bushing. Generally, the life of the stator rubber sleeve is 3-6 months under normal circumstances. If the wrong compound is selected, the bushing may fall off from the steel pipe or the rubber may fall off

Method used

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  • Sizing material of stator rubber sleeve for pre-stressed vacuum grouting pump and preparation method thereof
  • Sizing material of stator rubber sleeve for pre-stressed vacuum grouting pump and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Embodiment 1: Prestressed vacuum grouting pump stator rubber cover compound, the weight parts of its composition raw materials are: natural rubber 100, isoprene rubber 5, butadiene rubber 0.05, styrene-butadiene rubber 1.2, zinc oxide 3, stearic acid 0.4, sulfur 0.5, anti-aging agent DPPD 0.3, carbon black N339 10, accelerator M 0.2, rhine wax 4, anti-scorch agent CTP0.3, cottonseed oil 5.

[0016] The preparation method of the rubber compound for the stator rubber sleeve of the prestressed vacuum grouting pump comprises the following steps:

[0017] (1) Plastic training: Start the internal mixer, put natural rubber, isoprene rubber, butadiene rubber, and styrene-butadiene rubber into the internal mixer for plastic training, and knead until several kinds of rubber are fully fused. When the temperature reaches 110- 125°C, start discharging, stop and cool for 23-25 ​​hours after discharging;

[0018] (2) Mixing: Add the above-mentioned cooled plastic rubber into the inte...

Embodiment 2

[0020] Embodiment 2: The stator rubber sleeve produced with the rubber material of the stator rubber sleeve of the prestressed vacuum grouting pump of the present invention is compared with the ordinary stator rubber sleeve as shown in the following table

[0021]

[0022] Rubber product of the present invention and ordinary rubber product dynamic fatigue test performance contrast

[0023] Test conditions: Conditions: preload: 4900N, amplitude: ±3mm, frequency: 3Hz, at least 1.2 million times

[0024]

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Abstract

The invention discloses a sizing material of a stator rubber sleeve for a pre-stressed vacuum grouting pump. The sizing material comprises the following raw materials by weight: 95 to 105 parts of natural rubber, 4 to 6 parts of isoprene rubber, 0.04 to 0.06 parts of butadiene rubber, 1.1 to 1.3 parts of styrene-butadiene rubber, 2 to 4 parts of zinc oxide, 0.3 to 0.5 parts of stearic acid, 0.3 to 0.6 parts of sulfur, 0.2 to 0.4 parts of antiagers DPPD (Diphenyl-P-Phenylene Diamine), 8 to 12 parts of carbon black N339, 0.1 to 0.3 parts of accelerating agents M, 3 to 5 parts of Rhine wax, 0.2 to 0.3 parts of antiscorcher CTP (cytidine triphosphate), and 4 to 6 parts of cottonseed oil. When the sizing material is prepared, a part of formula raw materials is processed through sizing materialplastication at first as required, then other formula materials are added for sizing material mixing, and a vulcanization system is added and is processed through thin-passing for 5 to 7 times finally. Rubber damping products that are produced according to the rubber formula achieve favorable heat-proof aging performance and excellent tear resistance, and also achieve excellent dynamic fatigue resisting performance.

Description

technical field [0001] The invention relates to the field of rubber vulcanization, in particular to a rubber material for a stator rubber sleeve of a prestressed vacuum grouting pump and a preparation method thereof. Background technique [0002] The stator rubber sleeve of the prestressed vacuum grouting pump is also a vulnerable part of the prestressed vacuum grouting pump. Its selection will directly affect the life of the bushing. Generally, the life of the stator rubber sleeve is 3-6 months under normal circumstances. If the wrong compound is selected, the bushing may fall off the steel pipe or the rubber may fall off. Therefore, we are required to conduct research on the formulation of rubber compounds. Contents of the invention [0003] The invention provides a prestressed vacuum grouting pump stator rubber cover compound and a preparation method thereof. The prestressed vacuum grouting pump stator rubber cover produced by the rubber compound formula has good heat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L9/06C08K13/02C08K3/22C08K5/09C08K3/06C08K3/04B29B7/28
Inventor 朱焕章丁煜倩张凯东张朝根刘庆柱王从凯朱友武王正宇
Owner HEFEI SHICHUAN ENG MACHINERY
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