CN2256492Y

CN2256492Y - Metal sealing pad with rubber

Info

Publication number: CN2256492Y
Application number: CN 96229956
Authority: CN
Inventors: 李仁勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-23
Filing date: 1996-05-23
Publication date: 1997-06-18
Anticipated expiration: 2006-05-23

Abstract

The utility model provides a sealing pad, which has the advantages of good sealing performance and broad application. The utility model solves the problem that a common solid gasket can not solve the leakage of an industrial production device under the condition of high temperature, high voltage, or middle voltage and low voltage. The sealing pad comprises three layers. A first layer and a third layer are high temperature resistant and high pressure sealing adhesive layers. A second layer is a middle layer and is a metal gasket. The second layer forms integration with the high temperature resistant and high pressure sealing adhesive layers of the first layer and the third layer.

Description

Band glue metallic gasket

The utility model relates to a kind of Sealing that is used for the equipment of industrial product.

In industrial production and scientific experimentation, particularly bearing high temperature, in the equipment of industrial product of high pressure, oil, water, gas, the leakage of media such as steam is a common phenomenon, gently then waste energy, befouling environment, heavy then jeopardize the person and social safety, be the leakage problem of determining that is situated between, common way is at pipeline, valve, instrument, using a kind of solid pad that is called during the installation of equipment such as container connects is that metallic shim or nonmetallic gasket seal, but when adopting this mode to seal, because the degree of finish of equipment and pad sealing surface generally is difficult to reach the requirement of more than 7, and pad and the used material hardness of equipment differ, add design, reasons such as improper are installed, and after good to the device assembles fit sealing, sealing surface still can be gapped, leakage is arranged, at high temperature, particularly serious under the high pressure, for a long time, this problem fails to obtain be situated between to determine always, and pad only uses once and just scraps.

The purpose of this utility model is the improvement to existing solid pad, so that a kind of novelty, good seal performance, applied widely sealing gasket to be provided, make the equipment such as pipeline, valve, instrument and container that under high, medium and low, negative pressure and high temperature condition, turn round have significant good sealing effect.

For achieving the above object, the utility model has adopted a kind of sealing gasket, and it comprises three layers, first layer and the 3rd layer are high temperature resistant, high pressure sealing glue-line, the second layer is the mesosphere, is metallic shim, and it and first layer and the 3rd layer are high temperature resistant, the high pressure sealing glue-line constitutes one.

The sealing gasket that the utility model provides, good seal performance, applied range, withstand voltage 〉=55Mpa, heatproof-32～+ 800 ℃, be situated between determined general solid pad high temperature, high pressure or in, the leakage problem that can not be situated between under the low pressure condition and determine, and with after the metallic shim process arrangement of crossing, can reuse 3～5 times after coating high temperature resistant, high pressure sealing glue-line again, its sealing effect is with new the same, both energy saving, material reduced production costs again, made current sealing technique that great breakthrough and development arranged.

Below in conjunction with accompanying drawing structure of the present utility model is specifically described:

Fig. 1 is the utility model first embodiment's planar sealing pad structural representation.

Fig. 2 is the utility model second embodiment's ball face sealing mat structure schematic representation.

Fig. 3 is the utility model the 3rd embodiment's toothed surface gasket structure schematic representation.

Fig. 4 is that the A of Fig. 1 is to view.

The utility model first embodiment as shown in Figure 1, sealing gasket is the plane, it comprises three layers, and first layer and the 3rd layer are high temperature resistant, high pressure sealing glue-line 1,3, and used sealer is a high-temperature-resistant high-pressure-resistant sealing leakage-blocking adhesive for repairing, 0.5～1.0 millimeter of bed thickness, the second layer is mesosphere 2, is the plane, selects the processing of stainless steel or carbon steel for use, 3～5 millimeters of bed thickness, surface finishment is more than 3.

The utility model second embodiment as shown in Figure 2, sealing gasket is a sphere, it comprises three layers, first layer and the 3rd layer are high temperature resistant, high pressure sealing glue-line 4,6, and used sealer is a high-temperature-resistant high-pressure-resistant sealing leakage-blocking adhesive for repairing, 0.5～1.0 millimeter of bed thickness, the second layer is mesosphere 5, be sphere, select the processing of stainless steel or carbon steel for use, surface finishment is more than 3.

The utility model the 3rd embodiment as shown in Figure 3, sealing gasket is a toothed surface, it comprises three layers, first layer and the 3rd layer are high temperature resistant, high pressure sealing glue-

line

7,9, and used sealer is a high-temperature-resistant high-pressure-resistant sealing leakage-blocking adhesive for repairing, 0.5～1.0 millimeter of bed thickness, the second layer is mesosphere 8, be toothed surface, select the processing of stainless steel or carbon steel for use, surface finishment is more than 3.

Claims

1. a sealing gasket that is used for the equipment of industrial product is characterized in that described sealing gasket comprises three layers;

First layer and the 3rd layer are high temperature resistant, high pressure sealing glue-line;

The second layer is the mesosphere, is metallic shim, with described first layer and the 3rd layer of high temperature resistant, high pressure sealing glue-line formation one.

2. sealing gasket according to claim 1 is characterized in that described sealing gasket can be the plane, or sphere, or toothed surface.

3. sealing gasket according to claim 1 is characterized in that described bed thickness high temperature resistant, the high pressure sealing glue-line is 0.5～1.0 millimeter.