Pressure withstanding submarine body material for submarine and preparing method thereof

A pressure-resistant and hull technology, applied in the field of submarine pressure-resistant hull materials and its preparation, can solve the problems of lack of economic and technical strength in titanium reserves, and achieve the effect of high hardness and excellent compression resistance

Inactive Publication Date: 2016-06-22
福建海峡西岸知识产权研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that without rich titanium reserves or strong economic and technological strength

Method used

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  • Pressure withstanding submarine body material for submarine and preparing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Step a, preparing the raw materials of the submarine pressure-resistant hull material, the ratio of each raw material element by mass percentage is: carbon nanotube 2%, manganese 0.35%, chromium 2.0%, nickel 0.6%, molybdenum 0.9%, tungsten 2%, ytterbium 0.20%, rhenium 0.20%, and the rest is iron.

[0033] Step b. Add iron, manganese, chromium, nickel, molybdenum, tungsten, ytterbium, and rhenium as raw materials to be smelted into the vacuum chamber of the platinum crucible, and vacuumize to make the vacuum degree reach -0.1MPa. Melt in vacuo for 1 hour.

[0034] Step c, refilling with argon gas to make the pressure reach 100 MPa, adding carbon nanotubes, and keeping the temperature for 40 minutes to melt evenly.

[0035] Step d, keeping the pressure down to room temperature at a cooling rate of 100° C. / min to obtain a finished submarine pressure-resistant hull material.

Embodiment 2

[0037] Step a, prepare the raw materials of the submarine pressure-resistant hull material, the ratio of each raw material element by mass percentage is: carbon nanotube 5%, manganese 0.65%, chromium 2.75%, nickel 1.0%, molybdenum 1.2%, tungsten 4%, ytterbium 0.30%, rhenium 0.30%, cerium 0.30%, and the rest is iron.

[0038] Step b. Add iron, manganese, chromium, nickel, molybdenum, tungsten, ytterbium, rhenium, and cerium as raw materials to be smelted into the vacuum chamber of the platinum crucible, and vacuumize to make the vacuum degree reach -0.1MPa. Melting under vacuum conditions for 2 hours.

[0039]Step c, refilling with argon gas to make the pressure reach 120 MPa, adding carbon nanotubes, and keeping the temperature for 50 minutes to melt evenly.

[0040] Step d, keeping the pressure down to room temperature at a cooling rate of 110° C. / min to obtain a finished submarine pressure-resistant hull material.

Embodiment 3

[0042] Step a, prepare the raw materials of the submarine pressure-resistant hull material, the ratio of each raw material is: carbon nanotube 3.5%, manganese 0.5%, chromium 2.35%, nickel 0.8%, molybdenum 1.1%, tungsten 3%, ytterbium 0.25%, rhenium 0.25%, cerium 0.25%, and the rest is iron.

[0043] Step b. Put the raw materials iron, manganese, chromium, nickel, molybdenum, tungsten, ytterbium, rhenium and cerium to be smelted into the vacuum chamber of the platinum crucible, and vacuumize to make the vacuum degree reach -0.1MPa. Melting under vacuum conditions for 1.5 hours.

[0044] Step c, refilling with argon gas to make the pressure reach 110 MPa, adding carbon nanotubes, and keeping the temperature for 45 minutes to melt evenly.

[0045] Step d, keeping the pressure down to room temperature at a cooling rate of 105° C. / min to obtain a finished submarine pressure-resistant hull material.

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Abstract

The invention discloses a pressure-resistant hull material for a submarine and a preparation method thereof. The specific steps of the preparation method include: (1) preparing raw materials, and the ratio by mass percentage is: carbon nanotubes 2%~5%, manganese 0.35%~ 0.65%, chromium 2.0%~2.75%, nickel 0.6%~1.0%, molybdenum 0.9%~1.2%, tungsten 2%~4%, rare earth elements 0.6%~0.9%, and the rest is iron; Raw materials such as iron, manganese, chromium, nickel, molybdenum, tungsten, ytterbium, rhenium, and cerium are added to the vacuum chamber, vacuumed, and melted in vacuum for 1 to 2 hours; (3) refill with argon, add carbon nanotubes, and keep warm for 40 minutes ~50min, the melting is uniform; (4) Keep the pressure down to room temperature at a cooling rate of 100°C/min~110°C/min, and obtain the finished submarine pressure hull material. The submarine pressure-resistant hull material prepared by the invention has excellent pressure resistance, friction resistance, corrosion resistance, high temperature resistance and high hardness.

Description

technical field [0001] The invention belongs to the field of iron-based alloys, and in particular relates to a submarine pressure-resistant hull material and a preparation method thereof. Background technique [0002] Submarine pressure hull is a hull that ensures that the submarine can withstand deep water pressure underwater and has good watertightness. It is also called pressure hull or solid hull. It is the main structure of the submarine. And the transverse partition and so on. The shell plate is the main component to ensure the strength and watertightness of the submarine. The ribs are ring-shaped and arranged transversely inside or outside the shell. The transverse bulkhead is the supporting structure of the shell plate, which is usually divided into 3 to 8 sealed cabins by the transverse bulkhead, and various equipment, weapons and equipment, living facilities and control and command positions are arranged inside. The connection between the shell plate and the ribs...

Claims

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Application Information

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IPC IPC(8): C22C38/18C22C38/04C22C38/08C22C38/12C22C33/04
CPCC22C38/18C22C33/04C22C38/005C22C38/04C22C38/08C22C38/12C22C2026/002
Inventor 黄小珍李劲松吴玮佳赵飞
Owner 福建海峡西岸知识产权研究院有限公司
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