Refractory seal soft packing and preparation method for refractory seal soft packing
A manufacturing method and high temperature resistant technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of general high temperature resistance, high installation requirements, short service life, etc., achieve good sealing performance, and simple and easy manufacturing process , the effect of convenient operation
Inactive Publication Date: 2014-01-22
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
But it also has certain disadvantages: it must go through cutting, seaming, inlaying, compacting and other processes during the installation process. The installation requirements are high and the process is cumbersome. If the installation does not meet the technical requirements, leakage will inevitably occur.
There are also packing materials composed of strip-shaped fiber bundles, grease, and graphite, which are made by evenly applying a mixture of grease and graphite on the strip-shaped fiber bundles. The disadvantage of this type of soft seal is that it has general high temperature resistance. Short service life, even shorter when used in applications with relative jitter
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1-5
[0026] Manufacture the high temperature resistant sealing soft packing of the present invention according to the following steps:
[0027] (1) Mix raw leech, industrial chrysotile, and silica fume for more than 20 minutes; in addition, industrial lubricating oil and trimethoxysilane are mixed evenly;
[0028] (2) Mix and stir the above two mixtures until uniform to form a high temperature resistant sealing soft packing;
[0029] (3) Seal the high-temperature-resistant sealing soft packing and heat it when it is ready to use.
[0030] The content of each component of the high temperature resistant sealing filler in Examples 1-5 of the present invention is as shown in Table 1:
[0031] Table 1
[0032]
Example 1
Example 2
Example 3
Example 4
Example 5
Silica fume (kg)
10
20
15
15
30
Raw leeches (kg)
50
35
45
50
20
Industrial chrysotile (kg)
20
15
15
10
2...
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Abstract
The invention discloses refractory seal soft packing, which comprises the following components in parts by weight: 10-30 parts of silica fume, 20-50 parts of raw leech, 10-20 parts of asbestos, 10-20 parts of impregnating compound, 5-10 parts of lubricating oil and the balance of other inevitable impurities. Correspondingly, the invention also discloses a preparation method for the refractory seal soft packing. The prepared refractory seal soft packing is good in high temperature resistance and tightness and not only is suitable for static sealed occasions but also is suitable for slightly vibrating sealed occasions. Meanwhile, compared with the service life of traditional seal packing, the service life of the refractory seal soft packing is prolonged by 2-3 times.
Description
technical field [0001] The invention relates to a soft sealing packing and a manufacturing method thereof, in particular to a high temperature resistant mechanical groove sealing packing and a manufacturing method thereof. Background technique [0002] In the current various mechanical static groove seal structures, the sealing requirements for the junction joints are very high. Due to the high and low working temperatures in different environments, conventional sealing materials cannot maintain a good sealing effect in high temperature environments. , At present, the commonly used sealing material is in the form of packing, which is filled into the stuffing groove with multiple layers of packing, and is pressed by the end cover to achieve the sealing effect. Some of the existing packings are in the shape of soft molding strips, which have the advantages of certain elastic-plastic properties, chemical stability, impermeability, self-lubrication, and temperature resistance, a...
Claims
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IPC IPC(8): C09K3/10
Inventor 卢江海茅新东孔利明丁海绍朱晶吴海刚秦文豪许美芳
Owner BAOSHAN IRON & STEEL CO LTD