Alloy capable of improving creep resistance

An anti-creep and alloy technology, applied in the direction of electrode carrier/collector, electrical components, battery electrodes, etc., can solve the problems of unreasonable current distribution, short cycle life, poor corrosion resistance, etc., to improve deep cycle performance, Effect of reducing passivation, improving corrosion resistance and creep resistance

Inactive Publication Date: 2018-12-11
江苏永达电源股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional battery grid design has problems such as poor corrosion resistance, unreasonable current distribution, and short cycle life. At the same time, the emergence of new rare earth lanthanum alloy materials also has various problems.

Method used

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  • Alloy capable of improving creep resistance

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An alloy with improved creep resistance, the raw materials and percentages used in the alloy with improved creep resistance are: 2wt% silicon, 0.01wt% sulfur, 25wt% chromium, 25wt% iron, 6wt% cobalt, 22wt% nickel, 2.2wt% copper, 4.3wt% molybdenum, 5.1wt% boron, 0.1wt% carbon and 0.01wt% rare earth, 1.3wt% magnesium, 2.8wt% Manganese and 0.01 wt% Selenium.

[0027] The rare earth elements are neodymium and lanthanum, and the ratio of neodymium and lanthanum in the rare earth elements is 1:2.

[0028] The alloy adopts sand casting and investment casting processes, the alloy has a yield strength of at least 55.5MPa at room temperature, the alloy has a tensile strength of at least 62.35MPa at room temperature, and the hardness of the alloy at room temperature is The hardness is 40HCR.

[0029] The alloy can be prepared according to a conventional method using common production equipment, and the specific steps can include:

[0030] a) Calculate and weigh the amount of ea...

Embodiment 2

[0036] An alloy with improved creep resistance, the raw materials and percentages used in the alloy with improved creep resistance are: 2.5wt% silicon, 0.03wt% sulfur, 33wt% chromium, 33wt% iron , 8wt% cobalt, 29wt% nickel, 5.3wt% copper, 5.2wt% molybdenum, 6.3wt% boron, 0.25wt% carbon and 0.2wt% rare earth, 2.6wt% magnesium, 4.1wt% of manganese and 0.05wt% of selenium.

[0037] The rare earth elements are neodymium and lanthanum, and the ratio of neodymium and lanthanum in the rare earth elements is 1:2.

[0038] The alloy adopts sand casting and investment casting processes, the alloy has a yield strength of at least 55.5MPa at room temperature, the alloy has a tensile strength of at least 62.35MPa at room temperature, and the hardness of the alloy at room temperature is The hardness is 60HCR.

[0039] The alloy can be prepared according to a conventional method using common production equipment, and the specific steps can include:

[0040] a) Calculate and weigh the amou...

Embodiment 3

[0047] An alloy with improved creep resistance, the raw materials and percentages used in the alloy with improved creep resistance are: 2wt% silicon, 0.01wt% sulfur, 25wt% chromium, 25wt% iron, 6wt% cobalt, 22wt% nickel, 2.2wt% copper, 4.3wt% molybdenum, 5.1wt% boron, 0.1wt% carbon and 0.01wt% rare earth, 1.3wt% magnesium, 2.8wt% Manganese and 0.01 wt% Selenium.

[0048] The rare earth element is neodymium and lanthanum, and the ratio of neodymium and lanthanum in the rare earth element is 1:2. When mixing rare earth raw materials, 1.1wt% tin and 0.07-0.9wt% calcium are added.

[0049] The alloy adopts sand casting and investment casting processes, the alloy has a yield strength of at least 55.5MPa at room temperature, the alloy has a tensile strength of at least 62.35MPa at room temperature, and the hardness of the alloy at room temperature is The hardness is 40HCR.

[0050] The alloy can be prepared according to a conventional method using common production equipment, and ...

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Abstract

The invention discloses alloy capable of improving the creep resistance. The alloy capable of improving the creep resistance comprises the following raw materials in percentage by weight: 2 to 2.5 percent of Si, 0.01 to 0.03 percent of S, 25 to 33 percent of Cr, 25 to 33 percent of Fe, 6 to 8 percent of Co, 22 to 29 percent of Ni, 2.2 to 5.3 percent of Cu, 4.3 to 5.2 percent of Mo, 5.1 to 6.3 percent of B, 0.1 to 0.25 percent of C, 0.01 to 0.2 percent of rare-earth, 1.3 to 2.6 percent of Mg, 2.8 to 4.1 percent of Mn and 0.01 to 0.05 percent of Se. According to the alloy disclosed by the invention, through the addition of a rare-earth element-La and other elements, a crystal structure forming the alloy is changed, and the properties such as the plasticity and the stress resistance of the alloy are changed, so that the corrosion resistance and the creep resistance of a grid are improved, the maintenance-free performance of a battery is favorably improved, the polarization performance ofan electrode is improved, passivation of active matters is effectively reduced, the efficiency of redox reaction of lead plaster on different zones of the grid during a charging-discharging process ischanged, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of plate production, in particular to an alloy with improved creep resistance. Background technique [0002] Power lead-acid batteries have the advantages of high specific power, high specific energy, and long life. However, the traditional battery grid design has problems such as poor corrosion resistance, unreasonable current distribution, and short cycle life. At the same time, the emergence of new rare earth lanthanum alloy materials also has various problems. [0003] Therefore, it is necessary to invent an alloy with improved creep resistance to solve the above problems. Contents of the invention [0004] The object of the present invention is to provide an alloy with improved creep resistance, so as to solve the problems raised in the above-mentioned background technology. [0005] In order to achieve the above object, the present invention provides the following technical solution: an alloy with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/02H01M4/66H01M4/68H01M4/73
CPCC22C30/02H01M4/662H01M4/68H01M4/73Y02E60/10
Inventor 杨桂锋
Owner 江苏永达电源股份有限公司
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