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High-abrasion-resistance prestressed vacuum grouting pump stator rubber sleeve compound and preparation method thereof

A prestressed, pump stator technology, applied in the field of high wear-resistant prestressed vacuum grouting pump stator rubber sleeve compound and its preparation, can solve the problems of bush falling off, rubber falling off, affecting the life of the bushing, etc., and achieve adhesion Strong, high pass rate, good comprehensive performance effect

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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  • High-abrasion-resistance prestressed vacuum grouting pump stator rubber sleeve compound and preparation method thereof
  • High-abrasion-resistance prestressed vacuum grouting pump stator rubber sleeve compound and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Embodiment 1: High wear-resistant prestressed vacuum grouting pump stator rubber cover compound, the weight parts of which are composed of raw materials are: natural rubber 86, butyl rubber 0.6, silicone rubber PMQ 1.2, butadiene rubber 5, carboxylated nitrile rubber 5. Methyl fluorosilicone rubber 1.8, zinc oxide 3, stearic acid 0.4, sulfur 0.5, antioxidant RDA 0.3, carbon black N660 9, accelerator M 0.2, rhine wax 3, anti-scorch agent CTP0.2, cottonseed oil 6 .

[0017] The preparation method of the rubber compound for the stator rubber sleeve of the high wear-resistant prestressed vacuum grouting pump comprises the following steps:

[0018] (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 afte...

Embodiment 2

[0021] Example 2: The stator rubber sleeve produced by the high wear-resistant prestressed vacuum grouting pump stator rubber sleeve compound of the present invention is compared with the ordinary stator rubber sleeve as shown in the following table

[0022]

[0023] Rubber product of the present invention and ordinary rubber product dynamic fatigue test performance contrast

[0024] Test conditions: Conditions: preload: 4900N, amplitude: ±3mm, frequency: 3Hz, at least 1.2 million times

[0025]

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PUM

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Abstract

The invention discloses a high-abrasion-resistance prestressed vacuum grouting pump stator rubber sleeve compound, which comprises the following constitutional raw materials in parts by weight: 85-90 parts of natural rubber, 0.5-0.7 parts of butyl rubber, 1.1-1.3 parts of silicon rubber PMQ, 4-6 parts of carboxyl nitrile rubber, 1.5-2.0 parts of methyl fluorosilicone rubber, 5-6 parts of butadiene rubber, 2-4 parts of zinc oxide, 0.3-0.5 parts of stearic acid, 0.3-0.6 parts of sulfur, 0.2-0.4 parts of anti-aging agent RDA, 8-12 parts of carbon black N660, 0.1-0.3 parts of accelerant, 3-5 parts of Antilux paraffin, 0.2-0.3 parts of anti-scorching agent CTP and 4-6 parts of cottonseed oil. During preparation, a part of formula raw materials are subjected to compound plasticization accordingto requirements, then other formula materials are added to perform compound mixing, and finally a vulcanization system is added to perform mill run for 5-7 times. A vacuum grouting pump stator rubbersleeve product produced by the rubber formula has excellent heat resistant aging performance and superior tear resistance performance and also has superior dynamic fatigue resistance performance.

Description

technical field [0001] The invention relates to the field of rubber vulcanization, in particular to a high wear-resistant prestressed vacuum grouting pump stator rubber cover compound 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 high wear-resistant prestressed vacuum grouting pump stator rubber compound and a preparation method thereof. The stator rubber compound produced by the rubber compound formula has good heat aging resistanc...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L23/22C08L83/04C08L13/00C08L83/08C08L9/00C08K13/02C08K3/22C08K5/09C08K3/06C08K3/04B29B7/28
Inventor 刘庆柱张朝根丁煜倩王从华张凯东王从凯朱友武
Owner HEFEI SHICHUAN ENG MACHINERY
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