Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-damping Mn-Cu based damping alloy and preparing method thereof

A damping alloy, mn-cu technology, applied in the field of alloy materials, to achieve the effect of improving corrosion resistance, adjusting strength and toughness, and low cost

Active Publication Date: 2014-08-06
NINGBO SYRNMA METAL MATERIALS CO LTD
View PDF2 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention provides a formula and process of a novel Mn-Cu-based damping material for the existing Mn-Cu-based alloys that do not have an alloy system with both high damping performance and mechanical properties

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A Mn-Cu based vibration damping alloy, said alloy comprising the following components according to weight percentage: Mn: 70%, Cu: 12%, Al: 9%, Fe: 3.5%, Zn: 5%, Th: 0.5%. The raw materials are melted in a vacuum induction furnace and heated to 1400-1500 degrees to form an alloy liquid. After the alloy liquid is fully stirred at this temperature for 10 minutes, it can be cast into corresponding castings. The obtained castings undergo 50% After the hot forging deformation, it is annealed at 700 degrees for 2 hours, and then placed in a heat treatment furnace at 350 degrees for 1 hour, and then taken out to obtain the required high damping alloy material. The damping system SDC of the obtained material: 42%, breaking strength: 620MPa, elongation: 34%.

Embodiment 2

[0015] A Mn-Cu-based damping alloy, said alloy comprising the following components according to weight percentage: Mn: 75%, Cu: 16%, Al: 5%, Fe: 1%, Zn: 2.8%, Th: 0.2%. The raw materials are melted in a vacuum induction furnace and heated to 1400-1500 degrees to form an alloy liquid. After the alloy liquid is fully stirred at this temperature for 10 minutes, it can be cast into corresponding castings. The obtained castings undergo 50% After the hot forging deformation, it is annealed at 700 degrees for 2 hours, and then placed in a heat treatment furnace at 350 degrees for 1 hour, and then taken out to obtain the required high damping alloy material. The damping system SDC of the obtained material: 45%, the breaking strength: 660MPa, the elongation: 31%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Breaking strengthaaaaaaaaaa
Breaking strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-damping Mn-Cu based damping alloy and a preparing method thereof. The Mn-Cu based damping alloy consists of the following ingredients in percent by weight: 70-80% of Mn, 10-20% of Cu, 5-10% of Al, 1-5% of Fe, 1-5% of Zn and 0.2-0.5% of Th. The preparing method comprises the following steps: putting raw materials in a vacuum induction furnace, melting, and heating to 1400-1500 DEG C to form melt alloy; fully agitating the melt alloy at the temperature for ten minutes, and casting into a corresponding casting; carrying out 50% thermal forging deformation on the obtained casting at a temperature from 700 DEG C to 800DEG C, then annealing at the temperature of 700DEG C for 2 hours, putting in a thermal treatment furnace of 350DEG C, preserving heat for 1 hour and taking out to obtain the Mn-Cu based damping alloy. The damping coefficient of the cast material is larger than 40%, the breaking strength is not smaller than 600MPa, and the elongation rate is not smaller than 30%. After simple thermal treatment, the high-damping Mn-Cu based damping alloy can be widely applied in various high-speed running equipment for effectively reducing vibration and noise.

Description

technical field [0001] The invention relates to an alloy material, in particular to a high-damping Mn-Cu-based vibration-damping alloy and a preparation method thereof. Background technique [0002] Damping alloy is a new type of metal functional material, which can convert vibration energy into heat energy and dissipate it through the friction inside the alloy, so as to achieve the effect of vibration and noise reduction. Mn-Cu based damping alloy not only has high internal friction (SDC: ~40%), and has high mechanical strength. The concentrated grades of materials developed so far can be directly applied to the vibration damping part of the mechanical vibration, which can not only achieve the purpose of vibration and noise reduction, but also effectively improve the accuracy of the instrument and the reliability of the mechanical parts. Due to its excellent damping performance, manganese-copper-based damping alloys have broad development prospects and inestimable demand i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C22/00C22C1/02
Inventor 刘亚军曹贺全曹帅郭强
Owner NINGBO SYRNMA METAL MATERIALS CO LTD
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com