CN217463207U

CN217463207U - Metal-clad gasket

Info

Publication number: CN217463207U
Application number: CN202221101963.7U
Authority: CN
Inventors: 宋冬冰; 陆文明
Original assignee: Cixi Hengli Packing & Sealing Co ltd
Current assignee: Cixi Hengli Packing & Sealing Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-09-20
Anticipated expiration: 2032-05-10

Abstract

The metal-coated gasket comprises a metal packing material and a non-metal filler wrapped in the metal packing material, wherein the metal packing material is coiled into a ring with a circular section, one side of the metal packing material is an inner side, the other side of the metal packing material is an outer side, and the outer side is tightly lapped on the outer side of the inner side.

Description

Metal-clad gasket

Technical Field

The utility model relates to a metal cladding gasket.

Background

The metal clad gasket is a composite gasket which is internally clad with non-metallic materials (flexible graphite, asbestos rubber plates, ceramic fibers, glass fibers and the like) and externally clad with a metal sheet by a cold working process, is generally divided into a planar cladding and a corrugated cladding according to the section of the gasket, is the most traditional sealing gasket, and is suitable for sealing heat exchangers, pressure vessels, pumps, valves and flange surfaces. Both the planar coated gasket and the corrugated coated gasket are sheet-shaped and cannot be well applicable to flanges with special structures such as grooves.

Disclosure of Invention

In order to overcome the above-mentioned not enough of current metal cladding gasket, the utility model provides a cross-section is circular shape metal cladding gasket.

The technical proposal of the utility model for solving the technical problem is that: the metal-coated gasket comprises a metal packing material and a non-metal filler wrapped in the metal packing material, wherein the metal packing material is coiled into a ring with a circular section, one side of the metal packing material is an inner side, the other side of the metal packing material is an outer side, and the outer side is tightly lapped on the outer side of the inner side.

Further, the metal packing material is an integrated piece.

The beneficial effects of the utility model reside in that: the metal wrapping material is rolled into a ring with a circular section, so that the metal wrapping material is suitable for flanges with special structures such as grooves.

Drawings

Fig. 1 is a schematic view of a raw material sheet for manufacturing a metal-clad gasket according to the present invention.

FIG. 2 is a cross-sectional view of the feedstock after a first pass.

FIG. 3 is a cross-sectional view of the feedstock after a second process step.

Fig. 4 is a cross-sectional view of the raw material after the third process.

Fig. 5 is a sectional view of the raw material after the fourth process.

Fig. 6 is a cross-sectional view of the finished product of the present invention after the fifth process.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 6, the metal-clad gasket includes a metal clad material 1 and a non-metal filler 2 wrapped in the metal clad material 1, wherein the metal clad material 1 may be made of stainless steel, copper, or the like, and the non-metal filler 2 may be made of flexible graphite, asbestos rubber sheet, ceramic fiber, glass fiber, or the like. The metal packing material 1 is rolled into a ring with a circular section, one side of the metal packing material is an inner side 3, the other side of the metal packing material is an outer side 4, and the outer side 4 is tightly lapped on the outer side of the inner side 3. Of course, "circular" in the technical feature of "the metal packing 1 is wound into a ring having a circular cross section" as described above means an engineered circular shape, that is, it is not absolutely required to be circular, and it is sufficient that the metal packing has a substantially circular shape.

In order to obtain the metal-clad gasket of the above structure, the following steps may be adopted to process the metal-clad gasket:

s1: preparing a plate-shaped metal strip;

s2: looping a plate-shaped metal strip into a bearing cylinder shape, and welding two ends of the metal strip to form a metal cylinder 5;

s3: folding the upper part of the metal cylinder in the step S2 into a folded edge 6 which is folded outwards through a stamping die;

s4: the folded edge which is turned outwards is stamped into a U-shaped cross section through a stamping die, so that a packing groove 7 is formed, and then the nonmetal packing 2 is filled into the packing groove 7;

s5: the inner side edge 8 of the padding groove is outwards rolled through a stamping die until the end part of the inner side edge 8 of the padding groove is close to the inner side of the outer side edge 9 of the padding groove;

s6: the outside edge 9 of the packing channel is rolled inwards by means of a stamping die until the end of the outside edge 9 of the packing channel abuts against the outside of the inside edge 8 of the packing channel.

Claims

1. Metal cladding gasket, including metal package material and parcel in the nonmetal filler of metal package material, its characterized in that: the metal packing material is rolled into a ring with a circular section, one side of the metal packing material is an inner side, the other side of the metal packing material is an outer side, and the outer side is tightly lapped on the outer side of the inner side.