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Aluminum alloy sliding valve

A technology of aluminum alloy and aluminum alloy materials, which is applied in the field of slide valves, can solve problems such as easy wear, affect the service life of slide valves, and large friction, and achieve the effects of enhanced corrosion resistance, excellent oxidation effect, and light weight

Inactive Publication Date: 2016-04-06
NINGBO HONGBO MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, since the spool (plunger, disc) in the spool slides on the sealing surface of the valve body, it will be easily worn due to the large friction force, which will affect the service life of the spool valve

Method used

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  • Aluminum alloy sliding valve
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  • Aluminum alloy sliding valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] First, according to the composition and mass percentage of the aluminum alloy of Example 1 in Table 1, batching and smelting, ultrasonic vibration was applied during the smelting process, the ultrasonic power of the ultrasonic vibration was 500W, and the frequency was 20kHz. After smelting into molten aluminum, carry out slag removal, degassing and refining, and then carry out slag removal after standing still.

[0037]Then pour the aluminum liquid after deslagging into the pressure chamber, fill it into the cavity of the mold at an injection speed of 80L / min and pour it, so that the aluminum liquid is solidified and formed under the injection pressure of 60MPa to obtain valve body castings and valve core castings . Then the obtained valve body castings and valve core castings are subjected to heat treatment. The heat treatment includes solution treatment and double-stage aging treatment. The solution treatment is gradient solution treatment. Keep warm for 10 minutes, ...

Embodiment 2

[0040] First, according to the composition and mass percentage of the aluminum alloy of Example 2 in Table 1, batching and smelting, ultrasonic vibration was applied during the smelting process, the ultrasonic power of the ultrasonic vibration was 600W, and the frequency was 23kHz. After smelting into molten aluminum, carry out slag removal, degassing and refining, and then carry out slag removal after standing still.

[0041] Then pour the aluminum liquid after deslagging into the pressure chamber, fill it into the cavity of the mold at the injection speed of 82L / min and pour it, so that the aluminum liquid is solidified and formed under the injection pressure of 65MPa to obtain valve body castings and valve core castings . Then the obtained valve body castings and valve core castings are subjected to heat treatment. The heat treatment includes solution treatment and double-stage aging treatment. The solution treatment is gradient solution treatment. Keep warm for 9 minutes,...

Embodiment 3

[0044] First, according to the composition and mass percentage of the aluminum alloy of Example 3 in Table 1, batching and smelting, ultrasonic vibration was applied during the smelting process, the ultrasonic power of the ultrasonic vibration was 650W, and the frequency was 25kHz. After smelting into molten aluminum, carry out slag removal, degassing and refining, and then carry out slag removal after standing still.

[0045] Then pour the aluminum liquid after deslagging into the pressure chamber, fill it into the cavity of the mold at an injection speed of 85L / min and pour it, so that the aluminum liquid is solidified and formed under the injection pressure of 70MPa to obtain valve body castings and valve core castings . Then heat-treat the obtained valve body castings and valve core castings. The heat treatment includes solution treatment and double-stage aging treatment. The solution treatment is gradient solution treatment. Keep warm for 8 minutes, keep warm for 8 minut...

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Abstract

The invention relates to an aluminum alloy sliding valve which comprises a valve body and a valve element. The valve body and the valve element are made of aluminum alloy materials. Aluminum alloy comprises, by mass percent, 1.0-1.5% of Mg, 0.6-1.0% of Si, 0.3-0.5% of Cu, 0.1-0.3% of Zn, 0.1-0.3% of Mn, 0.05-0.2% of Cr, 0.05-0.1% of Ti, 0.3-0.6% of Fe, 0.15-0.5% of Zr, 0.05-0.3% of Nb, 0.5-0.8% of Bi, 0.3-1% of rare earth element, 10-30% of aluminum borate whisker and the balance Al and inevitable impurity elements. The valve body and the valve element of the sliding valve are made of aluminum alloy materials, and the beneficial effects of being low in weight, high in strength, resistant to corrosion and the like are achieved.

Description

technical field [0001] The invention relates to a slide valve, in particular to an aluminum alloy slide valve. Background technique [0002] The slide valve is a diverter valve that uses the spool (plunger, disc) to slide on the sealing surface of the valve body to change the position of the fluid inlet and outlet channels to control the flow direction of the fluid. It is often used in steam engines, hydraulic and pneumatic devices, so that the movement mechanism can obtain Predetermined direction and travel action or automatic continuous operation. [0003] In the prior art, since the spool (plunger, disc) in the spool slides on the sealing surface of the valve body, it is easy to wear due to high friction, which affects the service life of the spool. Contents of the invention [0004] The object of the present invention is to provide an aluminum alloy slide valve with good mechanical properties, wear resistance and long service life. [0005] The above object of the pr...

Claims

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Application Information

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IPC IPC(8): C22C21/08C22C1/02
CPCC22C21/08C22C1/026
Inventor 施红飞
Owner NINGBO HONGBO MACHINERY MFG
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