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Preparation method of nickel-based high-temperature alloy Inconel718 spring wire

A nickel-based superalloy and spring wire technology, applied in the field of high-temperature alloy wire preparation, can solve the problems of uneven wire structure, small pass processing rate, poor production environment, etc., and achieve excellent mechanical properties, good surface quality, The effect of less environmental pollution

Active Publication Date: 2014-07-16
西安诺博尔稀贵金属材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the traditional Inconel718 alloy wire preparation method has disadvantages such as complicated process, small pass processing rate, low production efficiency, uneven wire structure and poor production environment.

Method used

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  • Preparation method of nickel-based high-temperature alloy Inconel718 spring wire
  • Preparation method of nickel-based high-temperature alloy Inconel718 spring wire
  • Preparation method of nickel-based high-temperature alloy Inconel718 spring wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 1, the solid solution state nickel-based superalloy Inconel718 bar material that diameter is 14.0mm is carried out roll die drawing, obtains the wire blank that diameter is 10.5mm, and the total processing ratio of roll die drawing is 43.8%;

[0023] Step 2, placing the wire blank described in step 1 in a resistance furnace for solution heat treatment, then quenching the solution heat-treated wire blank, and then pickling the quenched wire blank treatment; the temperature of the solution heat treatment is 970 °C, and the holding time of the solution heat treatment is 60 minutes; the method of the pickling treatment is: soak the quenched silk blank in the pickling solution for 15 minutes, take out Rinse with water and dry, where the pickling solution is made of HNO 3 , HF and H 2 O is mixed according to the volume ratio of 4:2:4;

[0024] Step 3, carry out roll die drawing to the wire material blank after pickling treatment in step 2, obtain the wire material blan...

Embodiment 2

[0032] Step 1. Carrying out roll die drawing of solid solution nickel-based superalloy Inconel718 bar with a diameter of 12.0 mm to obtain a wire blank with a diameter of 8.5 mm, and the total processing rate of roll die drawing is 49.8%;

[0033] Step 2, placing the wire blank described in step 1 in a resistance furnace for solution heat treatment, then quenching the solution heat-treated wire blank, and then pickling the quenched wire blank treatment; the temperature of the solution heat treatment is 960°C, and the holding time of the solution heat treatment is 40 minutes; the method of the pickling treatment is: soak the quenched silk blank in the pickling solution for 20 minutes, take out Rinse with water and dry, where the pickling solution is made of HNO 3 , HF and H 2 O is mixed according to the volume ratio of 4:2:4;

[0034] Step 3, carrying out roll die drawing on the wire blank after pickling treatment in step 2 to obtain a wire blank with a diameter of 6.7mm, and...

Embodiment 3

[0044] Step 1. Carrying out roll die drawing of solid solution nickel-based superalloy Inconel718 bar with a diameter of 12.0 mm to obtain a wire blank with a diameter of 9.0 mm, and the total processing rate of roll die drawing is 43.8%;

[0045] Step 2, placing the wire blank described in step 1 in a resistance furnace for solution heat treatment, then quenching the solution heat-treated wire blank, and then pickling the quenched wire blank treatment; the temperature of the solution heat treatment is 965 °C, and the holding time of the solution heat treatment is 60 minutes; the method of the pickling treatment is: soak the quenched silk blank in the pickling solution for 18 minutes, take out Rinse with water and dry, where the pickling solution is made of HNO 3 , HF and H 2 O is mixed according to the volume ratio of 4:2:4;

[0046] Step 3, carrying out roll die drawing on the wire blank after pickling treatment in step 2 to obtain a wire blank with a diameter of 7.0mm, an...

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Abstract

The invention discloses a preparation method of a nickel-based high-temperature alloy Inconel718 spring wire. The method comprises the following steps: I, drawing a nickel-based high-temperature alloy Inconel718 bar by using a roller die for to obtain a wire blank; II, carrying out a solid solution heat treatment on the wire blank and hardening and acid dipping in sequence; III, carrying out the steps I and II for 0-4 times to the acid-dipped wire blank, then, drawing by using the roller die with the total processing rate being greater than or equal to 25%, and then carrying out electric heating tension straightening; and IV, grinding the wire blank on a centerless grinding machine to obtain the Inconel718 spring wire. The method disclosed by the invention is simple in process, easy to realize and high in production efficiency and hardly causes environmental pollution. The spring wire prepared by the method is high in dimensional precision, good in surface quality, uniform in texture and excellent in mechanical property. The method can be widely applied to the processing industry of deformed nickel-based high-temperature alloy wires.

Description

technical field [0001] The invention belongs to the technical field of high-temperature alloy wire preparation, and in particular relates to a preparation method of nickel-based high-temperature alloy Inconel718 spring wire. Background technique [0002] Nickel-based deformed superalloy Inconel718 (national standard GH4169) has high tensile strength, yield strength, durable strength and plasticity between -253°C and 650°C, and also has good corrosion resistance, radiation resistance, thermal processing and welding properties Therefore, it has become a key material widely used in aviation, aerospace, nuclear energy and petrochemical fields. [0003] Inconel718 alloy wire is a high-performance high-temperature alloy product, mainly used to make compression springs of nuclear fuel components and related component springs, and is an important component material for nuclear power engineering. Inconel718 alloy wire needs to be cold coiled in the subsequent spring preparation proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/10C21D8/06
Inventor 李红宇赵鸿磊武宇张录强宜楠郑学军
Owner 西安诺博尔稀贵金属材料股份有限公司
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