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Method for preparing high beryllium-copper alloy used for photomultiplier tube dynodes

A technology of photomultiplier tube and beryllium copper alloy, applied in electron multiplier dynode, dynode, electron multiplier detailed information, etc., can solve the problems of low toughness and high porosity, achieve low production cost and improve strength and toughness , the effect of reducing energy consumption

Active Publication Date: 2017-03-15
KINKOU SUZHOU COPPER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The belt throwing method is a common method for preparing amorphous and fine-grained strips. The liquid droplets are rapidly cooled and thrown out on the high-speed rotating copper roller. Different cooling speeds can be obtained by adjusting the speed of the copper roller. The cooling rate can generally be The thickness of the strip prepared by the strip strip method is generally 0.02-0.05mm, but it has the disadvantages of high porosity, low strength and toughness, because the thickness of the strip prepared by the strip strip method is close to or exceeds the precision The processing limit of the rolling mill, it is difficult to carry out subsequent deformation to eliminate these disadvantages

Method used

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  • Method for preparing high beryllium-copper alloy used for photomultiplier tube dynodes
  • Method for preparing high beryllium-copper alloy used for photomultiplier tube dynodes
  • Method for preparing high beryllium-copper alloy used for photomultiplier tube dynodes

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Embodiment 1

[0033] The invention provides a method for preparing a high beryllium copper alloy for a photomultiplier tube multiplier. The specific steps of the preparation method are as follows:

[0034] Step 1: Use argon to clean the high-purity quartz crucible furnace. After cleaning, the high-purity beryllium-copper master alloy and high-purity copper are proportioned, and the mass percentages of each component are: beryllium: 2.3wt.%, nickel : 0.31wt.%, iron: 0.058wt.%, aluminum: 0.013wt.%, silicon: 0.028wt.%, lead: 0.0020wt.%, cadmium: 0.0020wt.%, zinc: 0.0020wt.%, other impurities The element is 0.43wt.%, the rest is Cu;

[0035] Step 2: After proportioning the high-purity beryllium-copper master alloy and high-purity copper, carry out vacuum melting in a high-purity quartz crucible, and vacuumize the high-purity quartz crucible to 3×10 -3 Pa, at the end of the smelting process, fill with 0.4 atmospheric pressure of argon as a protective gas, and repeat the smelting 3 times;

[00...

Embodiment 2

[0042] The invention provides a method for preparing a high beryllium copper alloy for a photomultiplier tube multiplier. The specific steps of the preparation method are as follows:

[0043]Step 1: Use argon gas to clean the furnace chamber of the high-purity quartz crucible. After cleaning, the high-purity beryllium-copper master alloy and high-purity copper are proportioned, and the mass percentages of each component are: beryllium: 2.6wt.%, nickel : 0.27wt.%, Iron: 0.050wt.%, Aluminum: 0.008wt.%, Silicon: 0.019wt.%, Lead: 0.0016wt.%, Cadmium: 0.0012wt.%, Zinc: 0.0014wt.%, other impurities The sum of elements is 0.31wt.%, the rest is Cu;

[0044] Step 2: After proportioning the high-purity beryllium-copper master alloy and high-purity copper, carry out vacuum melting in a high-purity quartz crucible, and vacuumize the high-purity quartz crucible to 3×10 -3 Pa, at the end of the smelting process, fill it with argon of 0.5 atmospheric pressure as a protective gas, and repeat...

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Abstract

The invention discloses a method for preparing high beryllium-copper alloy used for photomultiplier tube dynodes. The method includes the steps of material preparation, smelting, hearth cleaning, strip manufacturing and finish rolling. By the adoption of the method, the condition of hard and brittle phase generation in preparation of high beryllium-copper alloy strips through a traditional semi-continuous rolling machining method is avoided, the toughness of the beryllium-copper alloy strips prepared through a strip-spinning method is improved, the strip porosity is lowered, working efficiency is improved, and input cost is reduced.

Description

technical field [0001] The invention relates to the field of metal material processing technology, in particular to a method for preparing a high beryllium copper alloy for a photomultiplier tube multiplier. Background technique [0002] Beryllium copper, also known as beryllium copper, is the "king of elasticity" in copper alloys. After solution aging heat treatment, high-strength, high-conductivity products can be obtained. After heat treatment, high-strength beryllium copper alloys not only have high strength, but also High hardness and has the advantages of wear resistance, corrosion resistance, excellent casting performance, beryllium bronze alloy is suitable for the manufacture of various molds, explosion-proof safety tools, wear-resistant parts such as cams, gears, worm gears, bearings, etc. Beryllium copper alloy has high electrical conductivity and thermal conductivity after heat treatment. Beryllium copper alloy is suitable for manufacturing switch parts, strong co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/03B22D11/06H01J43/10
CPCB22D11/06C22C1/03C22C9/00H01J43/10
Inventor 刘楚明朱戴博韩坦
Owner KINKOU SUZHOU COPPER IND CO LTD
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