Cu-Ni-Si alloy material and cooling roller sleeve containing alloy

A technology of cu-ni-si and alloy materials, which is applied in the field of preparation of cooling roll sleeves, amorphous and nanocrystalline strips, can solve the problems of low strength of chromium-zirconium-copper and poisonous elements in beryllium-copper, and reduce the surface Effects of roughness, low cost, and high heat resistance

Inactive Publication Date: 2015-06-10
北京电力自动化设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The alloy of the present invention can overcome the deficiencies in the prior art such as the low

Method used

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  • Cu-Ni-Si alloy material and cooling roller sleeve containing alloy
  • Cu-Ni-Si alloy material and cooling roller sleeve containing alloy
  • Cu-Ni-Si alloy material and cooling roller sleeve containing alloy

Examples

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preparation example Construction

[0031] The preparation method of the Cu-Ni-Si alloy material includes melting, casting, forging and heat treatment steps, wherein:

[0032] In the smelting and casting step, place the elemental components of each component in an induction melting furnace for smelting according to the specified component distribution ratio, and then pour the smelted Cu-Ni-Si alloy liquid to obtain a slab;

[0033] In the forging step, the slab is hot forged at a temperature range of 720-920°C (such as 730°C, 750°C, 800°C, 850°C, 870°C, 900°C, 910°C). Ni 2 Uniform and refined Si grains improve material strength;

[0034] In the heat treatment step, aging treatment is carried out after solid solution, wherein the solid solution temperature is 820-980°C (such as 830°C, 860°C, 880°C, 910°C, 950°C, 970°C), and the aging temperature is 420°C. ~500°C (such as 430°C, 450°C, 480°C, 490°C), this heat treatment method can precipitate Ni that plays a strengthening role 2 Si precipitates, thereby increas...

Embodiment 1

[0038] The Cu-Ni-Si alloy prepared in this embodiment is composed of the following components by weight percentage: Ni: 5.3%; Si: 1.2%; the balance is Cu and unavoidable impurities.

[0039] The preparation method of present embodiment Cu-Ni-Si alloy material is as follows:

[0040] (1) Melting and casting Put nickel powder, silicon powder and copper block into an induction melting furnace for melting according to the weight ratio of the above components, and then pour the smelted Cu-Ni-Si alloy liquid to obtain a slab;

[0041](2) Forging The billet is hot forged, cooled to room temperature after hot forging, wherein the initial forging temperature is 900°C, and the final forging temperature is 800°C; during the forging process, it is necessary to complete punching and hole expansion;

[0042] (3) The heat treatment adopts the heat treatment process of solid solution + aging. The forging after hot forging is heated to 900°C for solution treatment, and after holding for 2 hour...

Embodiment 2

[0045] The Cu-Ni-Si alloy prepared in this embodiment is composed of the following components by weight percentage: Ni: 6.6%; Si: 1.6%; the balance is Cu and unavoidable impurities.

[0046] The preparation method of the Cu-Ni-Si alloy material in this example is the same as that in Example 1, and the thickness of the obtained annular alloy material is the same as in Example 1. The properties of the alloy material prepared in this example are shown in Table 1.

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Abstract

The invention discloses a Cu-Ni-Si alloy material and a cooling roller sleeve containing the alloy. The Cu-Ni-Si alloy is composed of the following components by weight percentage: 3-7% of Ni, 0.8-2.2% of Si, and the balance of Cu and unavoidable impurities. The Cu-Ni-Si alloy comprising the components is applied to the cooling roller sleeve for the amorphous/nano-crystal strip production and a novel cooling roller composite structure roller sleeve is provided. The composite roller sleeve is composed of an inner layer and an outer layer, wherein the outer layer is a Cu-Ni-Si alloy and the inner layer is brass with low cost. The Cu-Ni-Si alloy sleeve is free of an expensive metal Be, cheaper than the beryllium copper, safe and environmentally friendly, so that the amorphous strip lamination coefficient and the finished product ratio can be effectively improved and the service life of the copper roller is prolonged. The composite roller sleeve disclosed by the invention is simple in structure and additionally the material cost is reduced.

Description

technical field [0001] The invention relates to a high-strength copper alloy material and its application field, in particular to a Cu-Ni-Si alloy material and a cooling roll sleeve containing the alloy, which is used for the preparation of amorphous and nanocrystalline strips . Background technique [0002] Amorphous / nanocrystalline strips are prepared by planar casting strip technology. The specific process is: the molten superalloy melt is cast on the peripheral surface of a high-speed rotating cooling roller through a nozzle with a slit, and cooling at 1 million degrees per second is required. Speed, the heat is taken away in a very short time to quickly solidify the alloy solution into a strip, ensuring that the atomic structure of the alloy is in an amorphous state, the strip is stripped, grasped and coiled, and finally the amorphous / nanocrystalline strip is obtained . In order to meet the requirements of rapid cooling in the manufacturing process, copper alloys with...

Claims

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Application Information

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IPC IPC(8): C22C9/06B22D11/06
CPCB22D11/0611C22C9/06
Inventor 吕建伟谢旭霞杜宇金兆伟
Owner 北京电力自动化设备有限公司
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