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Al-Si-Cu-Mn heat-resistant aluminum alloy with high Fe content and preparation method thereof

A technology of al-si-cu-mn and al-si-cu-mn-ti, applied in the field of metal materials, can solve the problems of secondary pollution, time-consuming and laborious disinfection, poor disinfection effect, etc. The effect of simple element composition and high temperature strength

Active Publication Date: 2019-03-01
贵州贵材创新科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are usually no suitable devices and tools for the existing tiny seeds in the disinfection process. Generally, the tiny seeds are put into a petri dish for disinfection. The disinfection is time-consuming and laborious, and the tiny seeds are easy to cause floating, and the disinfection effect is poor. Manual operation , easy to cause secondary pollution and a large amount of waste of experimental materials and sterilization reagents or medicines in the process of sterilization and disinfection

Method used

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  • Al-Si-Cu-Mn heat-resistant aluminum alloy with high Fe content and preparation method thereof
  • Al-Si-Cu-Mn heat-resistant aluminum alloy with high Fe content and preparation method thereof

Examples

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Effect test

Embodiment 1

[0017] Example 1: An Al-Si-Cu-Mn-Ti heat-resistant aluminum alloy with a high Fe content, with a total mass of 4kg, including the following components and their mass percentages: Cu: 6.0%, Mn: 0.4%, Fe : 0.1%, Si: 7.0%, Ti: 0.1%, and the balance is Al and unavoidable impurities. The preparation method of the heat-resistant aluminum alloy includes the following steps:

[0018] (1) Smelting: According to the alloy composition of the ratio, add aluminum-copper master alloy, aluminum-manganese master alloy, aluminum-iron master alloy, aluminum-silicon master alloy, aluminum-titanium master alloy and pure aluminum, and more than 2 / 3 of the furnace charge is melted, and the furnace charge is After all melting, lower the furnace temperature to 720°C and keep it for 20 minutes; after the furnace temperature is stable, remove the slag, add argon for refining, keep it at 725°C for 15 minutes, and then skim the slag to obtain a refined metal melt;

[0019] (2) Casting: Preheat the castin...

Embodiment 2

[0023] Example 2: An Al-Si-Cu-Mn-Ti heat-resistant aluminum alloy with a high Fe content, with a total mass of 4kg, including the following components and their mass percentages: Cu: 8.0%, Mn: 1.2%, Fe : 1.0%, Si: 9.0%, Ti: 1.0%, and the balance is Al and unavoidable impurities. The preparation method of the heat-resistant aluminum alloy comprises the following steps:

[0024] (1) Melting: Add aluminum-copper master alloy, aluminum-manganese master alloy, aluminum-iron master alloy, aluminum-silicon master alloy and pure aluminum according to the alloy composition, and melt more than 2 / 3 of the charge. After all the charge is melted, put The furnace temperature is lowered to 730°C and kept for 15 minutes; after the furnace temperature is stable, remove the slag, add argon gas for refining, keep at 730°C for 10 minutes, and skim the slag to obtain a refined metal melt;

[0025] (2) Casting: preheat the casting mold to 220°C, and pour the refined metal melt into billets;

[002...

Embodiment 3

[0029] Example 3: An Al-Si-Cu-Mn-Ti heat-resistant aluminum alloy with a high Fe content, with a total mass of 4kg, including the following components and their mass percentages: Cu: 7%, Mn: 0.8%, Fe : 0.45%, Si: 8.0%, Ti: 0.45%, and the balance is Al and unavoidable impurities. The preparation method of the heat-resistant aluminum alloy comprises the following steps:

[0030] (1) Melting: Add aluminum-copper master alloy, aluminum-manganese master alloy, aluminum-iron master alloy, aluminum-silicon master alloy and pure aluminum according to the alloy composition, and melt more than 2 / 3 of the charge. After all the charge is melted, put The furnace temperature is lowered to 725°C and kept for 17 minutes; after the furnace temperature is stable, the slag is removed, and after adding argon for refining, the slag is skimmed after being kept at 728°C for 17 minutes to obtain a refined metal melt;

[0031] (2) Casting: Preheat the casting mold to 260°C, and pour the refined metal ...

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Abstract

The invention discloses an Al-Si-Cu-Mn-Ti heat-resistant aluminum alloy with a high Fe content and a preparation method thereof. The alloy is prepared from, by weight, 6.0-8.0% of Cu, 0.4-1.2% of Mn,0.1-1.0% of Fe, 7.0-12% of Si and 0.1-1.0% of Ti, and the balance is Al and inevitable impurities; the preparation method comprises the steps of 1) smelting; 2) casting; 3) solid solution*aging treatment on a casting blank; the alloy has the advantages of high temperature strength and high temperature durability after heat treatment; heat preservation is conducted at 315 DEG C for 30 minutes, andthe tensile strength is up to 155-225 MPa; the tensile strength is up to 110-135 MPa after the heat preservation at 315 DEG C for 10 hours, and the tensile strength is up to 95-120 MPa after the heatpreservation at 315 DEG C for 100 hours. The preparation method has simple process, and added elements have simple composition and do not contain rare precious metals.

Description

technical field [0001] The invention relates to an Al-Si-Cu-Mn heat-resistant aluminum alloy with high Fe content and a preparation method thereof, belonging to the technical field of metal materials. Background technique [0002] There are usually no suitable devices and tools for the existing tiny seeds in the disinfection process. Usually, the tiny seeds are put into a petri dish for disinfection. The disinfection is time-consuming and laborious, and the tiny seeds are easy to cause floating, and the disinfection effect is poor. Manual operation , It is easy to cause secondary pollution, and a large amount of experimental materials and sterilizing reagents or medicines are wasted in the process of sterilization and disinfection. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an Al-Si-Cu-Mn heat-resistant aluminum alloy with high Fe content and a preparation method thereof, so as to solve the problems existing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/14C22C21/02C22C1/03C22F1/057C22F1/043
CPCC22C1/026C22C1/03C22C21/02C22C21/14C22F1/002C22F1/043C22F1/057
Inventor 林波李浩宇许锐肖华强姜云夏松超张文馨
Owner 贵州贵材创新科技股份有限公司
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