Novel packing impregnating agent and method for impregnating packing by impregnating agent

Abstract

The invention relates to a novel packing impregnating agent and a method for impregnating packing by the impregnating agent. The novel packing impregnating agent is characterized by being prepared from the following ingredients in percentage by weight: 50 percent of colloidal graphite, 50 percent of tetrafluoro emulsion, 3 to 5 percent of molybdenum disulfide, 3 to 5 percent of paraffin and 10 to 20 percent of high-temperature silicon oil. Compared with the prior art, the novel packing impregnating agent has the advantage that the novel packing impregnating agent provided by the invention simultaneously has the advantages of the tetrafluoro emulsion, the colloidal graphite, the molybdenum disulfide, the paraffin and the high-temperature silicon oil, and overcomes the defects of a single lubricating agent. When being used for impregnating the packing, the novel packing impregnating agent is permeated to the lubricating agent inside the packing; the fiber compactness is improved; a sealing effect is achieved.

Description

technical field [0001] The invention relates to a novel packing impregnating agent and a method for impregnating packing with the impregnating agent. Background technique [0002] Reducing "running, leaking, leaking" is an eternal topic in the seal industry. Various fiber braided packings are widely used in the sealing of pump valves, but pure crushed fibers such as aramid, acrylic, pre-oxidized silk, cotton yarn The sealing rope cannot be sealed, and generally needs to be impregnated with a lubricant. The commonly used impregnants and their advantages and disadvantages are as follows: [0003] PTFE emulsion: It can improve the compactness of fibers and play a lubricating role, but it is not resistant to temperature and has poor heat dissipation; [0004] Graphite emulsion: It can improve the compactness of the fiber, play a lubricating role, and can also withstand high temperatures, but the fiber will be impregnated with graphite emulsion, and the packing will become hard,...

AI Technical Summary

Problems solved by technology

[0003] PTFE emulsion: It can improve the compactness of fibers and play a lubricating role, but it is not resistant to temperature and has poor heat dissipation;

[0004] Graphite emulsion: It can improve the compactness of the fiber, play a lubricating role, and can also withstand high temperatures, but the fiber will be impregnated with graphite emulsion, and the packing will become hard, which is not conducive to sealing;

[0005] Molybdenum disulfide: Lubricate and improve temperature resistance, but not easy to adsorb on the packing;

[0007] There are also vaseline, paraffin, etc., which can play a lubricating role, but generally can only be applied on the surface of the packing, and it is difficult to penetrate into the inside of the packing.