Large-specification aluminum alloy round bar and casting method thereof

A super-sized, aluminum alloy technology, applied in the field of aluminum alloy casting, can solve the problems of low mechanical properties of 6061 aluminum alloy, easy cracking of round rods, small diameter of round rods, etc., and achieve uniform microstructure refinement, excellent refinement effect, The effect of eliminating casting stress

Active Publication Date: 2012-12-12
广西南南铝加工有限公司
View PDF2 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the existing 6061 aluminum alloy has low mechanical properties, the diameter of the cast round rod is small, and it cannot meet the needs of the market, and the 6061 aluminum alloy round rod produced by

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

[0045] The mass percentage of alloy composition of super large aluminum alloy round bar is as follows

[0046] Cu: 0.20~0.30 Mn: 0.00~0.05 Mg: 0.90~1.10

[0047] Zn: 0.00~0.05 Ti: 0.02~0.05 Cr: 0.10~0.15

[0048] Si: 0.48~0.50 Fe: 0.10~0.30 The balance is Al

[0049] Casting method of aluminum alloy round bar:

[0050] (1) Ingredients: calculate the 99.7% purity of the remelted aluminum ingot and the 6061 aluminum alloy return material dosage based on the alloy composition, and then mix the ingredients. The 6061 aluminum alloy return material amount accounts for 0.1-30% of the total input. Weighed fast melting silicon, cathode copper, AlCr75 aluminum alloy for use.

[0051] (2) Melting: According to the result of batching calculation, commercial quick-melting silicon is added at the beginning of feeding, and then remelted aluminum ingot and 6061 aluminum alloy return material are added, and cathode copper and AlCr75 aluminum alloy are added at the end of feeding. Heat in the smelting f...

Embodiment 2

[0059] It is different from the alloy composition percentage of the aluminum alloy rod in Example 1, as follows

[0060] Cu: 0.20~0.30 Mn: 0.00~0.05 Mg: 0.90~1.10

[0061] Zn: 0.00~0.05 Ti: 0.02~0.05 Cr: 0.15~0.20

[0062] Si: 0.50~0.52 Fe: 0.30~0.45 The balance is Al

[0063] Casting method of aluminum alloy round bar:

[0064] (1) Ingredients: According to the alloy composition, calculate the amount of remelted aluminum ingot with a purity of 99.7% and 6061 aluminum alloy return material, and then mix and batch, the 6061 aluminum alloy return material accounts for 30-60% of the total input, calculate Weighed fast melting silicon, cathode copper, AlCr75 aluminum alloy for use.

[0065] (2) Melting: According to the result of batching calculation, commercial quick-melting silicon is added at the beginning of feeding, and then remelted aluminum ingot and 6061 aluminum alloy return material are added, and cathode copper and AlCr75 aluminum alloy are added at the end of feeding. Heat in t...

Embodiment 3

[0073] It is different from the alloy composition percentage of the aluminum alloy rod in Example 1, as follows

[0074] Cu: 0.20~0.30 Mn: 0.01~0.04 Mg: 0.90~1.10

[0075] Zn: 0.01~0.04 Ti: 0.02~0.05 Cr: 0.12~0.18

[0076] Si: 0.50~0.52 Fe: 0.20~0.40 The balance is Al

[0077] Casting method of aluminum alloy round bar:

[0078] (1) Ingredients: According to the alloy composition, calculate the amount of remelted aluminum ingot with a purity of 99.7% and the amount of 6061 aluminum alloy return material, and then mix the ingredients. The percentage of 6061 aluminum alloy return material to the total input amount is 25-45%. Weighed fast melting silicon, cathode copper, AlCr75 aluminum alloy for use.

[0079] (2) Melting: According to the result of batching calculation, commercial quick-melting silicon is added at the beginning of feeding, and then remelted aluminum ingot and 6061 aluminum alloy return material are added, and cathode copper and AlCr75 aluminum alloy are added at the end o...

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
Diameteraaaaaaaaaa
Tensile strengthaaaaaaaaaa
Yield strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a large-specification aluminum alloy round bar and a casting method thereof. according to the invention, raw materials are blended according to a formula, and are added into a smelting furnace; smelting and deslagging are carried out; the obtained material is delivered into a holding furnace, and on-line degassing and refining are carried out; degassing, deslagging, and purifying are carried out; an aluminum-titanium-boron grain refining agent is added for carrying out grain refinement; the obtained material is cast into an aluminum alloy round bar; and the aluminum alloy round bar is subjected to a homogenization treatment, such that an obtained aluminum alloy round bar can be prevented from cracking, and the tissue of the aluminum alloy round bar is refined. With the method provided by the invention, a diameter of the produced round bar can reach phi1320mm. Also, coring and casting stress of the round bar are eliminated, and product quality is ensured. Mechanical properties of the round bar can satisfy requirements of large structural parts.

Description

Technical field [0001] The invention relates to the field of aluminum alloy casting, in particular to an ultra-large aluminum alloy round bar and a casting method thereof. Background technique [0002] The main alloying elements in 6061 alloy are Mg and Si, which have medium strength, good corrosion resistance, weldability, and good oxidation effect. Widely used in various industrial structural parts that require a certain strength and high corrosion resistance, such as truck manufacturing, tower buildings, ships, trams, railway vehicles, furniture, etc., and also widely used in automated mechanical parts, precision machining, and mold manufacturing , Electronics and precision instruments, SMT, PC board solder carriers, aerospace fixtures, electrical fixtures, communications, etc. The chemical composition and crystal phase composition of 6061 are extremely complex. The element content, proportion and impurity content in the alloy have a great influence on the structure and perfo...

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): C22C21/06C22C1/03C22C1/06B22D1/00B22D7/00
Inventor 沈海鸥胡传彬姚祥胡少莉蓝东华贺应钦黄金宁樊春阳雷志峰
Owner 广西南南铝加工有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap