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A rubber seal and magnetic pump technology, applied in the field of sealing rubber, can solve the problems of insufficient chemical corrosion resistance, low service life, and performance that cannot meet market demand, etc., to achieve wide operating temperature range, improved service life, and tear resistance Excellent performance and aging resistance
Active Publication Date: 2017-02-01
ANHUI NANFANG CHEM PUMP IND
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Abstract
Description
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Problems solved by technology
With the development of industrial technology and increasingly complex and diverse requirements, sealing materials have also developed rapidly, with more and more types, and their physical and chemical properties have been continuously improved; however, the chemical corrosion resistance of existing magnetic pump sealing materials Failure to meet certain production requirements, low service life, and performance in all aspects cannot meet market demand
Method used
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Examples
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Effect test
Embodiment 1
[0018] A rubber sealing material for a magnetic pump, made of the following components in parts by weight: nitrile rubber 65, fluorine rubber 20, silicon rubber 1, dibutyl phthalate 5, anti-aging agent 0.2, sulfur 1, polypropylene 6 , Modified filler 14.
Embodiment 2
[0020] A rubber sealing material for a magnetic pump, made of the following components in parts by weight: nitrile rubber 70, fluorine rubber 25, silicon rubber 3, dibutyl phthalate 8, anti-aging agent 0.5, sulfur 4, polypropylene 10 , Modified filler 20.
Embodiment 3
[0022] A rubber sealing material for a magnetic pump, made of the following components in parts by weight: nitrile rubber 68, fluorine rubber 22, silicon rubber 2, dibutyl phthalate 6, anti-aging agent 0.3, sulfur 2, polypropylene 7 , Modified filler 16.
[0023] Test and compare the compression set rate % of the sealing material under high temperature compression set (compression condition: 25% compression, 24h):
[0024] Table 1
[0025] 20℃ 50℃ 100℃ 150℃ 200℃ Example 1 0.1 1 1.9 3.1 5 Example 2 0.1 0.9 1.8 3.0 4.9 Example 3 0.1 1.1 2.0 3.2 5.1 Comparative example 1 4 5 9 16 21 Comparative example 2 5 7 12 19 25
[0026] Among them, Comparative Example 1 is: a rubber sealing material for a magnetic pump, made of the following components in parts by weight: nitrile rubber 70, fluororubber 25, silicon rubber 3, dibutyl phthalate 8, anti-aging agent 0.5 , Sulfur 4, Polypropylene 10, Filler 20, The filler is m...
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Abstract
The invention discloses a rubber sealing material for a magnetic pump. The rubber sealing material is characterized by being prepared from the following ingredients: nitrile rubber, fluorine rubber, silicon rubber, dibutyl phthalate, anti-aging agents, sulphur, polypropylene and modified fillers. Compared with the prior art, the prepared rubber sealing material for the magnetic pump has the advantages that the process property of the rubber sealing material is improved; the environment-friendly effect is achieved in the production process; the finished product qualification rate reaches up to 98 percent; the advantages of flexibility, low density, compression resilience, wide use temperature range and the like are realized; the cost is low; the economic income is high; the advantages of higher tensile strength, higher tearing strength, higher abrasion resistant performance, great elasticity modulus, high temperature resistance, chemical corrosion resistance, good heat-conducting performance, low thermal expansion coefficient and the like are also realized.
Description
technical field [0001] The invention relates to the technical field of sealing rubber, in particular to a rubber sealing material for a magnetic pump. Background technique [0002] The quality of the magnetic pump, in addition to the material and structure of the magnetic pump to meet the requirements of the working medium, the choice of sealing structure and form is also very important. Reasonable selection of sealing structure and form is the key to ensure normal and orderly production, reduce maintenance and repair costs, reduce engineering labor intensity, reduce material waste, and avoid environmental pollution. The sealing material refers to the material that can withstand the joint displacement to achieve the purpose of airtightness and watertightness and is embedded in the building joints. The early sealing materials are mainly fabrics, mineral fibers or felts. With the development of industrial technology and increasingly complex and diverse requirements, sealing m...
Claims
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Application Information
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