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Method for manufacturing rubber diaphragm for diaphragm pump

A manufacturing method and technology of diaphragm pumps, applied to pumps, pumps with flexible working elements, liquid displacement machinery, etc., can solve problems such as failure to meet requirements

Inactive Publication Date: 2008-10-29
SHANGHAI HUAXIANG RUBBER PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, according to the survey, the service life of the rubber diaphragms of diaphragm pumps sold in the domestic market is about one million times on average.
far from meeting the requirements

Method used

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  • Method for manufacturing rubber diaphragm for diaphragm pump
  • Method for manufacturing rubber diaphragm for diaphragm pump
  • Method for manufacturing rubber diaphragm for diaphragm pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3 and comparative example 1～9

[0015] according to figure 1 and figure 2 The structures shown are made of chloroprene rubber (CR), nitrile rubber (NBR) and ethylene-propylene-diene rubber (EPDM) respectively. image 3 The process shown in Table 2 produced three types of rubber membranes for diaphragm pumps, a total of 12 products, namely Examples 1-3 and Comparative Examples 1-9.

[0016] The main composition of the adhesive [2] and [4] used is the same as that of the rubber layer [1] and [5] of the skin film, and the glue is made by a beater according to the following glue / solvent ratio;

[0017] Neoprene glue: glue / benzene=1 / 3;

[0018] Nitrile mortar: glue / benzene=1 / 2.5;

[0019] EPDM mortar: glue / gasoline=1 / 3.5.

[0020] Measure the T of these mortars with a vulcanization meter 10 and T 90 Value, and compared with the two values ​​of the glue used in the adhesive layer, there are usually some differences. Here, the difference is taken as a comparative example, namely: comparative examples 2, 3, 5...

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Abstract

This invention relates to fabric isolation film pump rubber film process method, which is characterized by the following: adopting high intensity fabric as strengthening layer; adopting glue agent between the fabric and the rubber layer by use of sulfuration speed and rubber layer step. The said sulfuration speed step means that it adopts rubber materials composed of film layer and glue materials as the glue agent as rubber glue and fabric.

Description

technical field [0001] The invention relates to a method for manufacturing rubber products for industrial use, in particular to a method for manufacturing a rubber film for a diaphragm pump with particularly excellent flex resistance. Background technique [0002] Diaphragm pump rubber diaphragm is a bowl-shaped rubber diaphragm embedded with reinforced fabric. Installed in the middle of the diaphragm pump cavity, the edge is fixed on the pump body, and the diaphragm is pushed back and forth by the power source (compressed air, steam, etc.) on one side. The space of the cavity on the other side of the diaphragm pump is changed by the reciprocating movement of the diaphragm, and then the fluid (water, chemical liquid) is sucked from one end of the pump to the other end by means of two check valves. Therefore, when the diaphragm pump is working, the central diaphragm swings back and forth uninterruptedly to withstand the test of flexing fatigue. [0003] Films similar to rub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B25/10F04B43/02
Inventor 邓治国
Owner SHANGHAI HUAXIANG RUBBER PROD
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