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Heating processing technology of aluminum bronze alloy taper sleeve

An aluminum bronze and alloy technology, applied in the field of heat treatment of alloy taper sleeves, can solve the problems of roller shaft rotation, pressure relief, and insufficient stability, and achieve high tensile strength, toughness, and good strengthening effect

Inactive Publication Date: 2013-09-25
ZHEJIANG PENGCHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the speed is 150m / s, there are often phenomena of pressure relief, stacking of steel, and self-rotation of the roller shaft, which is still not stable enough.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0012] Specific embodiment 1, Cu80%, Al15%, Fe2%, Mn1%, Co1%, rare earth 1%.

specific Embodiment 2

[0013] Specific embodiment 2, Cu79%, Al16%, Fe2.6%, Mn0.8%, Co0.8%, rare earth 0.8%.

specific Embodiment 3

[0014] Specific embodiment 3, Cu78.5%, Al15.5%, Fe3%, Mn1.2%, Co1%, rare earth 0.8%.

[0015] The heat treatment process of the aluminum bronze alloy taper sleeve is that firstly, the aluminum bronze alloy taper sleeve is subjected to solution treatment for 1.5h to 3h at a temperature of 900°C to 1000°C, and then the aluminum bronze alloy taper sleeve is treated at a temperature of 500°C to 700°C. 3h ~ 6h aging treatment.

[0016] Preferably, the solution treatment time of the aluminum bronze alloy taper sleeve is 2 hours, and the temperature is 960°C. The aging treatment time of the aluminum bronze alloy taper sleeve is 4h, and the temperature is 600°C.

[0017] After the heat treatment process, the material hardness of the aluminum bronze alloy taper sleeve reaches 30HRC, and the strength reaches 700Mpa. Before the heat treatment process, the aluminum bronze alloy taper sleeve is extruded first, and after the heat treatment process, the aluminum bronze alloy taper sleeve i...

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Abstract

The invention discloses a heating processing technology of an aluminum bronze alloy taper sleeve. The heating processing technology comprises the following steps of: carrying out solution processing on the aluminum bronze alloy taper sleeve at 900 DEG C-1000 DEG C for 1.5h-3h, and then carrying out aging processing on the aluminum bronze alloy taper sleeve at 500 DEG C-700 DEG C for 3h-6h. According to the heating processing technology provided by the invention, after the solution processing is performed on aluminum bronze at 960 DEG C for 2h, a beta'+gamma2+k organization, and meanwhile, the tensile strength and tenacity of the taper sleeve are higher than those of the taper sleeve under a cast condition. When the solution temperature is 960 DEG C, the taper sleeve can achieve the highest strength of 700 Mpa and the hardness of 30HRC. The good strengthening effect is achieved when the aging processing is performed at 600 DEG C.

Description

technical field [0001] The invention relates to a heat treatment process for an alloy taper sleeve. Background technique [0002] At present, the taper sleeves manufactured by domestic manufacturers mainly use common alloy materials such as 40Cr, 30CrNiMoA, 40CrNiMoA, and 42CrMo. The heat treatment of the materials during production cannot meet the requirements, resulting in the metallographic structure of the taper sleeves not meeting the requirements. Processing specifications, quality acceptance standards. Therefore, the material has disadvantages such as low strength, poor toughness, poor corrosion resistance, rough working surface finish, etc., and can only be used in rolling mills below 65m / s. [0003] Italian Danieli company mainly produces high-speed wire rod mill equipment above 65m / s. The designed tapered sleeve has structural characteristics: large inner hole, thin sleeve wall, maximum speed of 10000r / min, dynamic balance torque required to reach 5000N.M, roll T...

Claims

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Application Information

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IPC IPC(8): C22F1/08
Inventor 王勇伟
Owner ZHEJIANG PENGCHENG TECH
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