Preparation method of high temperature adhesive for nickel based alloy

A nickel-based alloy, high-temperature adhesive technology, applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problem of low use temperature, achieve high thermal expansion, reduce shrinkage holes, and continuous bonding interface. Effect

Active Publication Date: 2018-11-16
天津航大翼安科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the use temperature of high temperature resistant adhesives for superalloys is generally low at present, usually lower than 450°C

Method used

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  • Preparation method of high temperature adhesive for nickel based alloy
  • Preparation method of high temperature adhesive for nickel based alloy
  • Preparation method of high temperature adhesive for nickel based alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The method for preparing a high-temperature adhesive suitable for nickel-based alloys provided in this example includes the following steps in order:

[0030] (1) Fully mix ultra-fine metal nickel powder, ultra-fine metal aluminum powder, ultra-fine boron carbide powder, ultra-fine low-temperature molten glass powder and high-activity copper oxide powder at a weight ratio of 3.8:2.5:1:1.9:1.7 to make a mixture of raw materials;

[0031] (2) Pour the above-mentioned raw material mixture into a ball mill jar, and ball mill it for 2 hours at a rotating speed of 2500r / min;

[0032] (3) Grind the bulk siloxane MK resin into powder, then dissolve the powdered siloxane MK resin in isopropanol, the weight ratio of siloxane MK resin to isopropanol is 1:1 , thus making a resin solution, and then using a magnetic stirring device to stir the resin solution until the viscosity reaches 1200mPa·s;

[0033] (4) Mix the raw material mixture obtained in step (2) after ball milling with...

Embodiment 2

[0036] (1) Fully mix ultra-fine metal nickel powder, ultra-fine metal aluminum powder, ultra-fine boron carbide powder, ultra-fine low-temperature molten glass powder and high-activity copper oxide powder in a weight ratio of 3.6:2.3:0.8:1.7:1.5 to make a mixture of raw materials;

[0037] (2) Pour the above-mentioned raw material mixture into a ball mill jar, and ball mill it for 2.5 hours at a rotating speed of 2000r / min;

[0038] (3) Grind the bulk siloxane MK resin into powder, then dissolve the powdered siloxane MK resin in isopropanol, the weight ratio of siloxane MK resin to isopropanol is 1:1 , thus making a resin solution, and then using a magnetic stirring device to stir the resin solution until the viscosity reaches 1200mPa·s;

[0039] (4) mix the raw material mixture after the ball milling obtained in step (2) with the resin solution prepared in step (3) according to the mass ratio of 0.83:1 and prepare a gel solution, manually stir for a moment, and then pour int...

Embodiment 3

[0042] (1) Fully mix ultra-fine metal nickel powder, ultra-fine metal aluminum powder, ultra-fine boron carbide powder, ultra-fine low-temperature molten glass powder and high-activity copper oxide powder in a weight ratio of 4.0:2.7:1.2:2.1:1.9 to make a mixture of raw materials;

[0043] (2) Pour the above-mentioned raw material mixture into a ball mill jar, and ball mill it for 3 hours at a rotating speed of 3000r / min;

[0044] (3) Grind the bulk siloxane MK resin into powder, then dissolve the powdered siloxane MK resin in isopropanol, the weight ratio of siloxane MK resin to isopropanol is 1:1 , thus making a resin solution, and then using a magnetic stirring device to stir the resin solution until the viscosity reaches 1200mPa·s;

[0045] (4) The raw material mixture obtained in step (2) after ball milling is mixed with the resin solution prepared in step (3) according to a mass ratio of 0.87:1 to prepare a gel solution, manually stirred for a moment, and then poured in...

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Abstract

The invention discloses a preparation method of a high temperature adhesive for a nickel based alloy. The preparation method comprises following steps: mixing following raw materials: ultrafine nickelpowder, ultrafine aluminum powder, ultrafine boron carbide powder, ultrafine low temperature molten glass powder, and high activity copper oxide powder to prepare a raw material mixture; subjecting the raw material mixture to ball milling; preparing a resin solution from silane MK resin and isopropanol; and finally mixing the raw material mixture with the resin solution to prepare a gel solution.The prepared high temperature adhesive can realize partial alloying, can tolerate a high temperature as high as 1000 DEG C, and has the advantages of high thermal expansion, low decomposition rate and low shrinking percentage; high temperature resistant metal compounds and ceramic dually enhance the performance, the high temperature mechanical properties are excellent; the high temperature adhesive has the prominent characteristics that after curing the adhesive does not need any post treatment, can be used at a temperature of 1000 DEG C, and is especially suitable for a high temperature nickel based alloy (GH2132) at a temperature of 600 to 1000 DEG C.

Description

technical field [0001] The invention belongs to the technical field of adhesive material preparation, and in particular relates to a method for preparing a high-temperature adhesive suitable for nickel-based alloys. Background technique [0002] High-temperature nickel-based alloys have the characteristics of good high temperature resistance, high temperature creep and high toughness, so they occupy an important position in the aerospace, energy and equipment manufacturing industries, and have been widely used in the preparation of hot end parts, such as Gas turbine blades, tail cone tubes, and reactor high-temperature gas furnace heat exchangers and other parts. However, due to the harsh service environment of the hot-end components, under the action of continuous collision, grinding and thermal shock, it is easy to cause wear, internal crack expansion and even fracture failure of the components. Generally speaking, the cost of hot-end components is extremely high, and dir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04C09J11/04C09J11/08
CPCC08K2003/0812C08K2003/0862C08K2003/2248C08L2201/08C09J11/04C09J11/08C09J183/04C08L61/06C08K3/08C08K3/38C08K3/40C08K3/22C08K3/00
Inventor 周晓猛王明超罗星娜李秀涛
Owner 天津航大翼安科技发展有限公司
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