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A kind of hot injection molding processing method of rubber sealing ring

A technology of rubber sealing rings and processing methods, which is applied to household appliances, other household appliances, household components, etc., can solve the problems of material aging and reduce the life of rubber sealing rings, etc., so as to improve the service life, improve mechanical strength, and increase overall mechanical strength. The effect of intensity

Active Publication Date: 2022-03-22
安徽拓盛汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the rubber ring works for a long time, the material of the rubber sealing ring ages, and tiny cracks appear on the surface. After being subjected to external tension, the tiny cracks expand rapidly, which greatly reduces the life of the rubber sealing ring

Method used

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  • A kind of hot injection molding processing method of rubber sealing ring
  • A kind of hot injection molding processing method of rubber sealing ring
  • A kind of hot injection molding processing method of rubber sealing ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 , 3 , as shown in 4,

[0032] The elastic rubber is melted and drawn to form an elastic fiber filament 1, and the elastic fiber filament 1 is spirally coiled to form a wire harness ring, and the wire harness ring is placed in a core ring mold, and after the rubber is poured and cured, a ring core ring 2 is formed, and the ring core ring 2 is placed in the sealing ring mold, and after the rubber is poured and cured, the sealing ring 3 is formed.

[0033] The elastic fiber filament 1 provides sufficient tensile properties for the sealing ring 3 as a whole, and because the elastic fiber filament 1 is a bundled structure, even if a small crack occurs on the surface of the sealing ring 3 due to aging, since the sealing ring 3 is not an integral structure, the crack will not Rapid expansion; moreover, even if a part of the multi-bundle of elastic fiber filaments 1 is broken due to external force, the remaining part can still provide sufficient pulling force...

Embodiment 2

[0035] Such as figure 2 , 3 , as shown in 4,

[0036] The elastic rubber is melted and drawn to form an elastic fiber filament 1, which is cut into an integer multiple of the circumference of the wire harness ring, and the elastic fiber filament 1 is spirally coiled to form a wire harness ring. During the melting and spinning process, the hot melt state The elastic rubber and the uncured elastic fiber filaments are placed in a vacuum or protective gas atmosphere, and the cured elastic fiber filaments are placed in a sulfur steam atmosphere furnace for vulcanization. The vulcanized elastic fiber filaments are compounded by sulfur atoms Joint, mechanical strength and chemical stability are improved;

[0037] The wire harness ring fills the cavity of the entire core ring mold, put the wire harness ring in the core ring mold, apply ultrasonic waves to the mold, promote the filling of the rubber slurry in the fluid state, and apply ultrasonic waves to the mold to promote the fil...

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PUM

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Abstract

The invention discloses a thermal injection molding processing method of a rubber sealing ring. The elastic rubber is melted and drawn to form elastic fiber filaments, and the elastic fiber filaments are spirally coiled to form a wire harness ring. The wire harness ring is placed in a core ring mold, and the rubber is poured After curing, the ring core ring is formed, the ring core ring is placed in the sealing ring mold, and after the perfusion rubber is cured, the sealing ring is formed; in the implementation of the present invention, the mechanical strength and service life of the rubber sealing ring are improved; the elastic fiber filament is the whole sealing ring Provide sufficient tensile properties, and because the elastic fiber filaments are in a bundled structure, even if tiny cracks occur on the surface of the sealing ring due to aging, the cracks will not expand rapidly because the sealing ring is not an integral structure; Because the external force breaks, the remaining part can still provide enough tension for the sealing ring, increasing the overall mechanical strength of the sealing ring.

Description

technical field [0001] The invention relates to the field of sealing ring processing technology, in particular to a thermal injection molding processing method of a rubber sealing ring. Background technique [0002] The rubber sealing ring relies on its elasticity to fill the sealing surface to achieve a mechanical seal. Under installation and working conditions, the sealing ring is squeezed by a huge external force, which may also be accompanied by axial and tangential external forces. The mechanical properties of the rubber ring are high. The sealing ring processed by traditional extrusion and injection molding processes Using a single material for one-time molding, relying on the properties of the rubber material to provide sufficient elasticity and tensile strength. After the rubber ring works for a long time, the material of the rubber sealing ring ages, and tiny cracks appear on the surface. After being subjected to external tension, the tiny cracks expand rapidly, wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/14B29C45/16B29L31/26
CPCB29C45/14B29C45/1615B29L2031/265
Inventor 朱成曾昭胜江勇姚秀全
Owner 安徽拓盛汽车零部件有限公司