A kind of concrete piston and its raw material preparation method

A technology of concrete pistons and raw materials, applied in mechanical equipment, liquid fuel engines, components of pumping devices for elastic fluids, etc., can solve the problems of reducing friction coefficient, large friction coefficient, short service life, etc. The effect of small friction coefficient, improved wear resistance, and improved tear performance

Inactive Publication Date: 2018-02-23
QINGDAO TKS SEALING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a concrete piston and its raw material preparation method to solve the problems of poor high temperature resistance, easy hydrolysis, large friction coefficient, short service life, poor wear resistance and poor tear performance, which seriously affect the working efficiency of the equipment. And other problems, so that it has good high temperature resistance, hydrolysis resistance, wear resistance and tear resistance, reduces the friction coefficient, increases the service life, and improves the working efficiency of the equipment

Method used

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  • A kind of concrete piston and its raw material preparation method

Examples

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Embodiment

[0019] A concrete piston, comprising a rubber body 1, the rubber body 1 is configured as a ring structure, the rubber body 1 is provided with a fiber layer, the upper outer side of the rubber body 1 is configured as an inverted trapezoid, and the upper inner side of the rubber body 1 is provided with an inverted trapezoidal hollow Part, the lower outer side of the rubber body 1 is provided with two rectangular raised structures 2, the rubber body 1 between the two rectangular raised structures 2 is set as a cylindrical ring, and the lower inner side of the rubber body 1 is provided with a cylindrical hollow part, an inverted trapezoidal hollow transition part is provided between the inverted trapezoidal hollow part and the cylindrical hollow part inside the rubber body 1 .

[0020] In the above examples, the rubber material used in it includes the following components in parts by weight: 100 parts of NBR, 5-8 parts of ZnO, 1 part of SA, 1-3 parts of anti-aging agent, 30-40 part...

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Abstract

The invention relates to a concrete piston and a method for preparing raw materials thereof. The rubber material for the concrete piston comprises the following components according to weight percentage: 100 parts of NBR, 5-8 parts of ZnO, 1 part of SA, 1-3 parts of anti-aging agent, Carbon black 30-40 parts, white carbon black 25-35 parts, fiber 2-4 parts, plasticizer 1.5 parts, tackifying resin 2-4 parts, adhesive RS 4-7 parts, adhesive A 1- 2 parts, sulfur 1-1.5 parts, accelerator 2.5-3.5 parts. It has good high temperature resistance, hydrolysis resistance, wear resistance and tear resistance, reduces the friction coefficient, increases the service life and improves the working efficiency of the equipment.

Description

technical field [0001] The invention belongs to the technical field of rubber, and relates to a concrete piston and a method for preparing raw materials thereof. Background technique [0002] At present, the rubber concrete piston is an important part of the cement slurry delivery pump for construction engineering and drilling machinery. It reciprocates in the medium such as cement slurry, pumps the cement slurry to high places and far away, and at the same time plays a sealing role to prevent cement The slurry leaks out. Most of the assembled cement slurry pistons in the prior art are made of polyurethane materials. Although polyurethane products have excellent elasticity and wear resistance, they have a short service life due to poor high temperature resistance, easy hydrolysis, and large friction coefficient; Manufactured, but because of the formula design, the wear resistance of the rubber concrete piston is average, the tear performance is not as good as that of polyur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/14C08L9/02C08L77/10C08L77/00C08K13/02C08K3/22C08K3/04C08K3/36C08K3/06C08K13/04C08K7/06
Inventor 曹建莉杜国忠姜成林
Owner QINGDAO TKS SEALING IND
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