Composite sealing material and manufacturing method thereof

A composite sealing and mixture technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as difficult sealing requirements, high sealing specific pressure, poor creep and relaxation resistance, etc., and achieve good long-term pressure-resistant sealing performance, low compression set performance, and the effect of excellent compression rebound performance

Inactive Publication Date: 2010-06-23
上海骏焱化工材料有限公司
View PDF0 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These sealing materials have certain advantages and disadvantages. For example, rubber sealing materials and polytetrafluoroethylene materials have good sealing effects, but have poor creep and relaxation resistance, poor long-term sealing effect and service life; flexible graphite sealing effects and creep resistance The relaxation effect is better, but it ha

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite sealing material and manufacturing method thereof
  • Composite sealing material and manufacturing method thereof
  • Composite sealing material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1

[0031] After the 0.25mm thick carbon steel plate is sandblasted, a layer of isocyanate solution is evenly coated on its surface and dried before use. Configure the following materials by weight ratio: Nitrile rubber: 60, carbon black: 12.5, calcium carbonate: 7, talc: 6, magnesium oxide: 3, barium sulfate: 4, sulfur: 0.1, antioxidant D: 0.2, DBP: 1.7, accelerator CZ: 0.15, accelerator TT: 0.15, zinc oxide: 1.0, stearic acid: 0.7, foaming agent H: 3.5. After masticating the nitrile rubber in an open mill, press sulfur, carbon black, calcium carbonate, talc, magnesium oxide, DBP, zinc oxide, stearic acid, antioxidant D, accelerator CZ, accelerator TT, foaming agent Add rubber in the order of H for mixing, and take the mixed rubber into a sheet with a thickness of 2 mm. The board is dissolved into glue with toluene, and the glue is evenly coated on the surface of the treated steel plate, dried, and cured in an oven at 150°C for 15 minutes to obtain the sealing b...

Example Embodiment

[0032] Example 2

[0033] Configure materials according to the following weight ratios: nitrile rubber: 50, neoprene: 20, carbon black: 14, calcium carbonate: 7, sulfur: 0.1, antioxidant D: 0.2, DBP: 1.7, accelerator CZ: 0.15, promote Agent TT: 0.15, zinc oxide: 1.0, magnesium oxide: 1, stearic acid: 0.7, foaming agent H: 4. The rubber compound was prepared as described in Example 1, and the rubber compound was uniformly coated on the surface of the steel plate treated as described in Example 1 by using a calender, and vulcanized according to the method in Example 1 to obtain the sealing plate of the present invention.

Example Embodiment

[0034] Example 3

[0035] The mixed rubber compound prepared in Example 2 was uniformly coated on the surface of a stainless steel plate treated with KH550 coupling agent, and the rest of the process was performed according to Example 2 to obtain the sealing plate of the present invention.

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

No PUM Login to view more

Abstract

The invention discloses a novel sealing material, which consists of a core plate and elastic membrane layers compounded on two sides of the core plate, wherein the core plate a metal or non-metal core plate after surface treatment; the elastic membrane layers are prepared from elastic foaming materials or non-foaming materials which are compounded on the surfaces of the core plate in a mechanical or chemical mode to form the membrane layers. The sealing material has the advantages of simple structure, excellent compression resilience, wonderful long-term pressurization sealability, very low creep relaxation performance, long service life and wonderful conformability with a sealing surface.

Description

technical field [0001] The patent of the present invention relates to a sealing material and its manufacturing method, in particular to a sealing material made of composite non-metallic material and metal or non-metal and its manufacturing method. Background technique [0002] In various mechanical, chemical, metallurgical, transportation and pharmaceutical devices and equipment, in order to prevent the leakage of liquid or gas and other media, it is necessary to provide seals at the connection of equipment or pipelines to ensure that the connection is leak-free. For this reason, various materials are generally used as sealing elements, commonly used include various rubber sealing materials, flexible graphite materials, polytetrafluoroethylene materials and various metal-non-metal composite materials. These sealing materials have certain advantages and disadvantages. For example, rubber sealing materials and polytetrafluoroethylene materials have good sealing effects, but ha...

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
no application Login to view more
IPC IPC(8): C09K3/10B29C70/68B29C71/00
Inventor 谢苏江许英
Owner 上海骏焱化工材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap