Method for welding ceramic and nickel-based alloy

A technology of nickel-based alloy and nickel alloy, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of reducing thermal stress, achieve the effects of improving wettability, energy saving and environmental protection of the process, and avoiding pores

Active Publication Date: 2021-12-10
XIAN SPECIAL EQUIP INSPECTION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fusion welding has the advantages of fast heating speed and high connection efficiency. However, the high melting point and pyrolysis characteristics of ceramics make it difficult to connect ceramics and metals by this method. An auxiliary heat source is required to preheat and slowly cool the base metal to reduce thermal stress.

Method used

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  • Method for welding ceramic and nickel-based alloy

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Effect test

Embodiment 1

[0049] This embodiment provides a method for welding ceramics and nickel-based alloys, comprising the following steps:

[0050] Step 1. Install the silicon carbide ceramic tube and the Incoloy 800H high-temperature nickel-based alloy tube on the friction welding equipment fixture respectively, and clamp the fixture so that there is no shaking, so that the center line of the silicon carbide ceramic tube and the high-temperature nickel-base alloy tube are at the same On the horizontal line, the welding surfaces of silicon carbide ceramic tubes and high-temperature nickel-based alloy tubes are cleaned of rust, scale and oil respectively; the outer diameters of silicon carbide ceramic tubes and high-temperature nickel-based alloy tubes are both 45mm, 9mm, the length is 0.3m;

[0051] Step 2. After mixing and drying the titanium powder and nickel powder by wet method, Ti / Ni mixed powder is obtained, and the Ti / Ni mixed powder is sprayed onto the welding surface of the silicon carbi...

Embodiment 2

[0064] This embodiment provides a method for welding ceramics and nickel-based alloys, comprising the following steps:

[0065] Step 1. Install the silicon carbide ceramic tube and the Incoloy 800H high-temperature nickel-based alloy tube on the friction welding equipment fixture respectively, and clamp the fixture so that there is no shaking, so that the center line of the silicon carbide ceramic tube and the high-temperature nickel-base alloy tube are at the same On the horizontal line, the welding surfaces of silicon carbide ceramic tubes and high-temperature nickel-based alloy tubes are cleaned of rust, scale and oil respectively; the outer diameters of silicon carbide ceramic tubes and high-temperature nickel-based alloy tubes are both 45mm, 9mm, the length is 0.3m;

[0066] Step 2. After mixing and drying the titanium powder and nickel powder by wet method, Ti / Ni mixed powder is obtained, and the Ti / Ni mixed powder is sprayed onto the welding surface of the silicon carbi...

Embodiment 3

[0079] This embodiment provides a method for welding ceramics and nickel-based alloys, comprising the following steps:

[0080]Step 1. Install the silicon carbide ceramic tube and the Incoloy 800H high-temperature nickel-based alloy tube on the friction welding equipment fixture respectively, and clamp the fixture so that there is no shaking, so that the center line of the silicon carbide ceramic tube and the high-temperature nickel-base alloy tube are at the same On the horizontal line, the welding surfaces of silicon carbide ceramic tubes and high-temperature nickel-based alloy tubes are cleaned of rust, scale and oil respectively; the outer diameters of silicon carbide ceramic tubes and high-temperature nickel-based alloy tubes are both 45mm, 9mm, the length is 0.3m;

[0081] Step 2. After mixing and drying the titanium powder and nickel powder by wet method, Ti / Ni mixed powder is obtained, and the Ti / Ni mixed powder is sprayed onto the welding surface of the silicon carbid...

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Abstract

The invention provides a method for welding ceramic and nickel-based alloy. The method comprises the following steps: step 1, a to-be-bonded ceramic piece and a to-be-bonded nickel alloy piece are installed on a friction welding equipment clamp; step 2, Ti / Ni coatings are prepared on the welding face of the to-be-bonded ceramic piece and the welding face of the to-be-bonded nickel alloy piece through a hypersonic flame spraying technology; step 3, friction welding equipment is used for welding through a first-stage pressurizing stage, a second-stage pressurizing stage and an upsetting stage; and step 4, the weldment welded in the step 3 is subjected to heat treatment. The metal connecting surface achieves thermoplastic deformation through heat generated by relative rotation of the ceramic and the nickel-based alloy, connection of metal and ceramic is achieved, and the method has the advantages of being high in connecting speed and high in production efficiency.

Description

technical field [0001] The invention belongs to the technical field of dissimilar material welding, and in particular relates to a method for welding ceramics and nickel-based alloys. Background technique [0002] With the rapid development of science and technology, modern industry has put forward more stringent requirements for engineering materials. Advanced ceramics have become an indispensable part of the field of engineering structures due to their high strength, high hardness, excellent wear resistance and corrosion resistance. Due to high brittleness and poor processing performance, a single ceramic material is not enough to meet the requirements of the engineering field. It is often required to be metallurgically connected with metal materials with better plasticity and toughness in application, so that the advantages of the two complement each other and give full play to the excellent performance of ceramics. Such as the connection of sapphire fairing and metal bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12B23K20/26B23K20/24C23C4/129C23C4/08C23C4/16C21D9/50C23C4/14
CPCB23K20/12B23K20/26B23K20/24C23C4/129C23C4/08C23C4/16C21D9/50C21D9/505C23C4/14
Inventor 和宇鲁元黎明朱稳高凯王皎王萌李超何一杨琦薛驰远殷越车静波
Owner XIAN SPECIAL EQUIP INSPECTION INST
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