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Aluminum alloy shell of CVT and preparation method thereof

An aluminum alloy casing and continuously variable transmission technology, applied in the field of aluminum alloy materials, can solve the problems of low strength, low hardness and easy deformation, and achieve the effects of high strength, good fatigue resistance and light weight

Inactive Publication Date: 2019-08-30
江苏创斯达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides an aluminum alloy shell of a continuously variable transmission and a preparation method thereof, which solves technical problems such as low strength, low hardness and easy deformation of existing aluminum alloy shell materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1: Weigh silicon 7.5%, iron 0.7%, magnesium 0.08%, copper 1.0%, chromium 0.05%, manganese 0.3%, titanium 0.05%, zinc 1.0%, nickel 0.1%, lead 0.06%, 0.01% of tin, 0.01% of zirconium, 0.02% of antimony, 0.04% of molybdenum, 0.05 parts of strontium, and the balance is aluminum raw materials.

[0024] Step 2: Heat the aluminum to 760°C in the smelting furnace to melt it completely, precipitate the gas and impurities in the aluminum liquid, raise the temperature to 1850°C, add the remaining components in order of melting point from high to low, and wait for the remaining components After all the parts are melted, impurities are removed and poured into molds for casting.

[0025] Step 3: After descaling, width fixing, rough rolling and finish rolling, the cast ingot obtained by casting is cooled to room temperature and subjected to two-stage homogenization treatment.

[0026] Step 4: The temperature of the first stage of homogenization is 440°C for 10 hours, the tempera...

Embodiment 2

[0030] Step 1: Weigh silicon 9.5%, iron 1.0%, magnesium 0.1%, copper 3.0%, chromium 0.25%, manganese 0.5%, titanium 0.15%, zinc 3.0%, nickel 0.5%, lead 0.08%, 0.03% tin, 0.03% zirconium, 0.04% antimony, 0.06% molybdenum, 0.07 parts strontium, and the balance is aluminum.

[0031] Step 2: Heat the aluminum to 780°C in the smelting furnace to completely melt it, precipitate the gas and impurities in the molten aluminum, raise the temperature to 1950°C, add the remaining components in order of melting point from high to low, and wait for the remaining components After all the parts are melted, impurities are removed and poured into molds for casting.

[0032] Step 3: After descaling, width fixing, rough rolling and finish rolling, the cast ingot obtained by casting is cooled to room temperature and subjected to two-stage homogenization treatment.

[0033] Step 4: The temperature of the first stage of homogenization is 480°C for 20 hours, the temperature of the second stage of ho...

Embodiment 3

[0037] Step 1: Weigh silicon 8.5%, iron 0.9%, magnesium 0.09%, copper 2.0%, chromium 0.15%, manganese 0.4%, titanium 0.1%, zinc 2.0%, nickel 0.3%, lead 0.07%, 0.02% tin, 0.02% zirconium, 0.03% antimony, 0.05% molybdenum, 0.06 parts strontium, and the balance is aluminum.

[0038]Step 2: Heat the aluminum to 770°C in the smelting furnace to completely melt it, precipitate the gas and impurities in the molten aluminum, raise the temperature to 1900°C, add the remaining components in order of melting point from high to low, and wait for the remaining components After all the parts are melted, impurities are removed and poured into molds for casting.

[0039] Step 3: After descaling, width fixing, rough rolling and finish rolling, the cast ingot obtained by casting is cooled to room temperature and subjected to two-stage homogenization treatment.

[0040] Step 4: The temperature of the first stage of homogenization is 460°C for 15 hours, the temperature of the second stage of hom...

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Abstract

The invention discloses an aluminum alloy shell of a CVT and a preparation method thereof. The aluminum alloy shell is composed of silicon, iron, magnesium, copper, chromium, manganese, titanium, zinc, nickel, lead, tin, zirconium, antimony, molybdenum, strontium and aluminium. The aluminum alloy shell is not prone to deforming and has high temperature resistance, no skin, light weight, no peeling, hardness of 150-200 HV; and a product has high strength, tensile strength of 500-600 MPa, yield strength of 450-550 MPa, bright surface, good fatigue resistance, elongation of 10%-20%, and no bubbles.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy materials, in particular to an aluminum alloy casing of a continuously variable transmission and a preparation method thereof. Background technique [0002] The continuously variable planetary transmission device is an innovative continuously variable transmission device, which transmits the speed between the driving wheel and the driven wheel through a group of small balls, and the center of the frame fixing the group of small balls can move left and right, so that Let the axis of the ball form an angle, so that the small balls at the left and right contact points have different sizes of rotation circles, thus forming a speed ratio, and the angle control of this group of small balls is non-level, so it brings the overall Continuously variable speed. [0003] Continuously variable transmission refers to a transmission system that can continuously obtain any transmission ratio within the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/02C22F1/043
CPCC22C1/026C22C21/02C22F1/002C22F1/043
Inventor 刘佳炎方英伟孙浩亮刘杰
Owner 江苏创斯达科技有限公司
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