Adhesive bonding process of metal framework and polyurethane

A technology of metal skeleton and polyurethane, applied in the direction of coating, etc., can solve the problems of poor thermal conductivity of the contact surface, lower mechanical properties, rapid heat accumulation, etc., and achieve the effect of solving bonding problems, improving resistance, and simple bonding process

Inactive Publication Date: 2020-02-11
上海唯万密封科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane material, excellent wear resistance, but high friction coefficient, large internal heat generation, poor heat conduction effect on the contact surface, rapid accumulation of heat, resulting in reduced mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A bonding process for a metal skeleton and polyurethane, comprising the following steps:

[0034] S1, processing and forming metal skeleton

[0035] The metal material is formed by turning and processed to obtain a metal skeleton with a specific shape;

[0036] S2, metal skeleton surface cleaning

[0037] Then, the metal skeleton obtained in step S1 is cleaned of dirt and waste residues on the surface of the metal skeleton by ultrasonic treatment;

[0038] S3, the surface of the metal skeleton is coated with glue

[0039] applying glue on the surface of the metal skeleton treated in step S1, and drying; then putting the glue-coated metal skeleton into an injection mold and fixing its position;

[0040] S4. Preparation of metal skeleton and polyurethane composite integral seal

[0041] Weigh the polyurethane, dry it at 80-100°C until the water content is less than 0.05%, then feed it into the injection molding machine for melting, and then use the injection molding p...

Embodiment 2

[0049] A bonding process for a metal skeleton and polyurethane, comprising the following steps:

[0050] S1, processing and forming metal skeleton

[0051] The metal material is formed by turning and processed to obtain a metal skeleton with a specific shape;

[0052] S2, metal skeleton surface cleaning

[0053] Then, the metal skeleton obtained in step S1 is cleaned of dirt and waste residues on the surface of the metal skeleton by ultrasonic treatment;

[0054] S3, the surface of the metal skeleton is coated with glue

[0055] applying glue on the surface of the metal skeleton treated in step S1, and drying; then putting the glue-coated metal skeleton into an injection mold and fixing its position;

[0056] S4. Preparation of metal skeleton and polyurethane composite integral seal

[0057] Weigh the polyurethane, dry it at 80°C until the moisture content is less than 0.05%, and then send it to an injection molding machine for melting, and then use an injection molding pr...

Embodiment 3

[0065] A bonding process for a metal skeleton and polyurethane, comprising the following steps:

[0066] S1, processing and forming metal skeleton

[0067] The metal material is formed by turning and processed to obtain a metal skeleton with a specific shape;

[0068] S2, metal skeleton surface cleaning

[0069] Then, the metal skeleton obtained in step S1 is cleaned of dirt and waste residues on the surface of the metal skeleton by ultrasonic treatment;

[0070] S3, the surface of the metal skeleton is coated with glue

[0071] applying glue on the surface of the metal skeleton treated in step S1, and drying; then putting the glue-coated metal skeleton into an injection mold and fixing its position;

[0072] S4. Preparation of metal skeleton and polyurethane composite integral seal

[0073] Weigh the polyurethane, dry it at 100°C until the water content is less than 0.05%, then feed it into an injection molding machine for melting, and then use an injection molding proces...

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PUM

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Abstract

The invention discloses an adhesive bonding process of a metal framework and polyurethane. The adhesive bonding process comprises the following steps of S1, machining for forming of the metal framework; S2, surface cleaning of the metal framework; S3, surface glue coating of the metal framework, and S4, preparation of the metal framework and polyurethane composite integral sealing element. According to the adhesive bonding process of the metal framework and polyurethane, the surface energy of a metal material is improved through ultrasonic treatment and glue coating treatment on the metal material; contaminants and residues on the surface of the metal material can be cleaned through ultrasonic treatment; through glue coating treatment, the surface of the metal material is activated, and the surface energy and hydrophilicity are improved; accordingly, the bonding strength of the metal surface and the polyurethane can be enhanced, and the polyurethane and the metal framework can be combined well together to form a composite material. Moreover, composite bonding is firm, and the mechanical performance is good. The problem existing in bonding between polyurethane and the high-strengthmetal material is solved. The phenomenon of adhesive failure to products is reduced.

Description

technical field [0001] The invention relates to the technical field of composite material preparation, in particular to a bonding process of a metal skeleton and polyurethane. Background technique [0002] Polyurethane is a polymer containing a carbamate group in the main chain of a macromolecule called polyurethane. Polyurethane is divided into two categories: polyester polyurethane and polyether polyurethane. Polyurethane has many excellent properties, so it has a wide range of uses. [0003] The application of any kind of material has its limitations, and the development of composite technology will take into account the advantages of different materials and improve the resistance of a single material to its working environment. Polyurethane material has excellent wear resistance, but its friction coefficient is high, internal heat generation is large, the heat conduction effect of the contact surface is poor, and heat accumulates rapidly, resulting in a decrease in its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14
CPCB29C45/1418B29C45/14311B29C2045/14245B29C2045/14868
Inventor 王文进
Owner 上海唯万密封科技股份有限公司
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