Preparation method of wide alloy plate

An alloy sheet and wide-width technology, which is applied in the field of wide-width alloy sheet preparation, can solve the problems that affect the application of the sheet, the sheet width is small, and it cannot be integrally formed.

Active Publication Date: 2022-01-11
XIAN SUPERCRYSYAL SCI TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the uniformity of the plate grain size, when the existing plate is prepared, the plate width is controlled below 800mm, and the plate size is small, w...

Method used

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  • Preparation method of wide alloy plate
  • Preparation method of wide alloy plate
  • Preparation method of wide alloy plate

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preparation example Construction

[0031] A method for preparing a wide-width alloy plate, comprising the following steps:

[0032] 1) The mechanical property test of the Inconel625 superalloy slab should meet the requirements of Table 1, and the ultrasonic flaw detection should be carried out, and there is no internal defect.

[0033] 2) One-fire rolling:

[0034] Heating: raise the temperature of the superalloy slab to 1130℃~1150℃, and the holding time is calculated according to the thickness of the superalloy slab 0.4mm / min~0.7mm / min; Rolling force, multi-pass small deformation rolling is selected for one-fire billet rolling.) Specifically, the holding time t=h*(0.4mm / min~0.7mm / min). h is the thickness of the superalloy slab. For example, if the thickness is 2.8mm, the holding time is 4-7min.

[0035] Among them, rolling passes: 7 to 9 passes;

[0036] Total deformation: 45% to 55%;

[0037] Pass deformation: 5% to 8%.

[0038] 1) Divide the material: divide the double-footed plate after the first-fire...

Embodiment 1

[0057] A method for preparing a wide-width alloy plate, comprising the following steps:

[0058] 1) The mechanical performance test of the slab should meet the requirements in Table 1, and the ultrasonic flaw detection should be carried out, and there should be no internal defects.

[0059] 2) One-fire rolling:

[0060] Heating: Heating up to 1150°C for 60 minutes.

[0061] Deformation: The total deformation is 50%;

[0062] Deformation passes: 7 passes

[0063] Pass deformation: 8%→8%→8%→7%→7%→6%→6%

[0064] 3) Ingredients:

[0065] 4) Second fire rolling:

[0066] Heating: Heating up to 1150°C for 30 minutes.

[0067] Deformation: The total deformation is 51%;

[0068] Deformation passes: 4 passes

[0069] Pass deformation: 13%→13%→13%→12%

[0070] 5) Ingredients:

[0071] 6) Three-fire rolling:

[0072] Heating: 1080°C holding time is 18min.

[0073] Deformation: The total deformation is 73%;

[0074] Deformation passes: 5 passes

[0075] Pass ...

Embodiment 2

[0083] A method for preparing a wide-width alloy plate, comprising the following steps:

[0084] 1) The mechanical performance test of the slab should meet the requirements in Table 1, and the ultrasonic flaw detection should be carried out, and there should be no internal defects.

[0085] 2) One-fire rolling:

[0086] Heating: Heating up to 1130°C for 60 minutes.

[0087] Deformation: The total deformation is 50%;

[0088] Deformation passes: 9 passes;

[0089] Pass deformation: 7%→7%→6%→5%→5%→5%→5%→5%→5%;

[0090] 3) Ingredients:

[0091] 4) Second fire rolling:

[0092] Heating: Heating up to 1130°C for 30 minutes.

[0093] Deformation: The total deformation is 51%;

[0094] Deformation passes: 6 passes;

[0095] Pass deformation: 10%→9%→9%→8%→8%→7%;

[0096] 5) Ingredients:

[0097] 6) Three-fire rolling:

[0098] Heating: 1050°C holding time is 18min.

[0099] Deformation: The total deformation is 72%;

[0100] Deformation passes: 6 passes

[0101...

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Abstract

A preparation method of a wide alloy plate comprises the following steps that a high-temperature alloy plate blank is subjected to first-fire rolling at the temperature of 1130-1150 DEG C and then subjected to material separation, then subjected to second-fire rolling at the temperature of 1130-1150 DEG C and then subjected to material separation, then subjected to third-fire rolling at the temperature of 1050-1080 DEG C and finally subjected to solid solution leveling treatment; wherein the total deformation of the first-fire rolling is 45%-55%, and the total deformation of the second-fire rolling is 45%-55%; and the total deformation of the third-fire rolling is 60-80%. According to the method, a multi-heating-number and multi-pass forming mode is adopted, firstly, small-deformation cogging is adopted, deformation resistance is reduced, the requirement for equipment is reduced, large-deformation reversing rolling is conducted after cogging is completed, all consistency of the plate structure is improved, and the structure uniformity and performance uniformity of the plate are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of alloy preparation, and in particular relates to a preparation method of a wide-width alloy plate. Background technique [0002] Inconel625 alloy is a Ni-based alloy with Mo, Nb and other elements as the main alloying elements. Mo, Nb and other elements in the alloy are mainly strengthened by solid solution. The alloy has excellent comprehensive mechanical properties. It is widely used in many fields such as aviation, aerospace and petrochemical industry. [0003] Inconel625 alloy due to its high deformation resistance during thermal processing, it is more difficult to control the consistency of grain size, and it is prone to the phenomenon of coarse grain and mixed crystal. In the existing technology, by controlling the width of the plate, the difficulty of process control in the rolling process of the plate is reduced, thereby improving the consistency of the grain size of the plate, but because the wid...

Claims

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Application Information

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IPC IPC(8): C22C19/05C22F1/10C21D8/02B21B3/00B21B37/58
CPCC22C19/055C22F1/10C21D8/0226C21D8/0247C21D8/0242B21B3/00B21B37/58
Inventor 薛祥义张晨辉吴天栋张利军
Owner XIAN SUPERCRYSYAL SCI TECH DEV CO LTD
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