Cloth clamping oil seal, and preparation method and application thereof
A cloth and oil seal technology, applied in mechanical equipment, engine seals, engine components, etc., can solve the problems of high cost and technical difficulty of fluorine rubber cloth easy to gel, achieve deep cross-linking degree, increase peroxide The effect of high dosage and high efficiency
Active Publication Date: 2015-07-15
GUANGZHOU MECHANICAL ENG RES INST
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
FKM cloth oil seals also have problems such as high cost, easy gelation of fluororubber cloth and high technical difficulty.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0034] Embodiment and comparative example are prepared according to the following methods:
[0035] (1) Preparation method of nitrile rubber compound and hydrogenated nitrile rubber compound
[0036] The nitrile rubber compound is prepared by the following method: 100 parts of nitrile rubber, 3 to 5 parts of zinc oxide, 0.5 to 1.0 parts of stearic acid and 0.5 to 1.5 parts of 2,2,4-trimethyl-1, After mixing 2-dihydroquinoline polymer at 40~50r / min for 1.5~2min, add 30~50 parts of carbon black and knead for 2~3min, then add 10~30 parts of filler and knead for 1~3min, at 160~ Debinding at 170°C and standing still to obtain a section of mixed rubber; mix 1.5 to 2.5 parts of 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane and 0.2 ~0.4 parts of 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxygen free base 15~20r / min mixing 2~3min, debinding at 80~100℃, to obtain nitrile rubber compound rubber mixing;
[0037] The hydrogenated nitrile rubber compound is prepared by the following ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a cloth clamping oil seal, and a preparation method and an application thereof. The cloth clamping oil seal consists of a framework and a lip-shaped sealing ring, the framework is made of butyronitrile clamp cloth which is prepared by coating nitrile butadiene rubber compound on the cotton canvas, and the lip-shaped sealing ring is made of hydrogenated butadiene-acrylonitrile rubber compound. The cloth clamping oil seal solves the problems of synchronized vulcanization and high surface adhesive strength of the nitrile butadiene rubber and the hydrogenated butadiene-acrylonitrile rubber through the nitrile butadiene rubber compound formula and the hydrogenated butadiene-acrylonitrile rubber compound formula, and has the technology advantages that the hydrogenated butadiene-acrylonitrile rubber compound lip-shaped sealing ring with low compression set without two-stage vulcanization is provided, the scorch safety is good, the processing performance is high and the cloth clamping oil seal is suitable for producing large sealing products. The cloth clamping oil seal is high-temperature resistant and frictional-wear resistant, is long in service life and low in cost and is especially suitable for being used on a rotating shaft seal with oil temperature being 50 to 110 DEG C and at axis speed of 15 to 25m / s.
Description
technical field [0001] The invention belongs to the technical field of rubber seals, and in particular relates to a cloth oil seal and its preparation method and application. The cloth oil seal is composed of nitrile rubber cloth and hydrogenated nitrile lip seal ring, especially suitable for rotating shaft seals with working medium temperature of 50-110°C and axial speed of 15-25m / s. Conditioned grinding mills, metallurgical rolling mills or large gearboxes at the head of the drive shaft. Background technique [0002] The bottom of the cloth oil seal uses fabric to reinforce the outer edge shoulder of the oil seal, which is tightly integrated with the elastic sealing lip, and the sealing lip is pre-tightened by the holding spring. It is mainly used in the rotating bearing seat to generate relative motion with the rotating shaft. Used for sealing lubricating oil, grease, water and other media, with good sealing effect and easy disassembly and assembly. Cloth oil seals are...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/20C08L9/02C08L15/00C08K13/02C08K3/22C08K5/09C08K5/3437C08K5/14C08K5/3435C08K5/18C08K5/3415C08J3/24
Inventor 肖风亮
Owner GUANGZHOU MECHANICAL ENG RES INST